./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-25.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-25.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 153786ff23d1f4ad1fa22216334d8f153d923a58dff5067a8f60a9c72819150b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:03:13,144 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:03:13,222 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 19:03:13,227 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:03:13,227 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 19:03:13,267 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:03:13,269 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 19:03:13,270 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 19:03:13,271 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 19:03:13,272 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 19:03:13,273 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:03:13,273 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 19:03:13,274 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:03:13,274 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:03:13,275 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 19:03:13,275 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:03:13,275 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:03:13,276 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 19:03:13,276 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 19:03:13,277 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 19:03:13,281 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:03:13,286 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:03:13,286 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:03:13,286 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:03:13,287 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:03:13,287 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 19:03:13,287 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:03:13,288 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:03:13,288 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:03:13,288 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 19:03:13,289 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 19:03:13,289 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 19:03:13,289 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:03:13,291 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:03:13,292 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:03:13,292 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:03:13,292 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 19:03:13,293 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 19:03:13,294 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 19:03:13,294 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 19:03:13,295 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 19:03:13,295 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 19:03:13,296 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 153786ff23d1f4ad1fa22216334d8f153d923a58dff5067a8f60a9c72819150b [2024-11-08 19:03:13,561 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:03:13,585 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:03:13,588 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:03:13,589 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:03:13,590 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:03:13,591 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-25.i Unable to find full path for "g++" [2024-11-08 19:03:15,679 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:03:15,996 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:03:15,997 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-25.i [2024-11-08 19:03:16,017 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/data/7f99de181/a36a2e7ad5184f59ac7309ca0b59447c/FLAG07effbb9a [2024-11-08 19:03:16,042 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/data/7f99de181/a36a2e7ad5184f59ac7309ca0b59447c [2024-11-08 19:03:16,045 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:03:16,047 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:03:16,050 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:03:16,051 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:03:16,059 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:03:16,060 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:03:16" (1/1) ... [2024-11-08 19:03:16,062 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43e0aba0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:03:16, skipping insertion in model container [2024-11-08 19:03:16,062 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:03:16" (1/1) ... [2024-11-08 19:03:16,101 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:03:16,344 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-25.i[916,929] [2024-11-08 19:03:16,463 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:03:16,479 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:03:16,497 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-25.i[916,929] [2024-11-08 19:03:16,577 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:03:16,600 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:03:16,601 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:03:16 WrapperNode [2024-11-08 19:03:16,601 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:03:16,602 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:03:16,602 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:03:16,603 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:03:16,611 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:03:16" (1/1) ... [2024-11-08 19:03:16,635 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:03:16" (1/1) ... [2024-11-08 19:03:16,693 INFO L138 Inliner]: procedures = 29, calls = 179, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 557 [2024-11-08 19:03:16,693 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:03:16,698 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:03:16,698 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:03:16,699 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:03:16,721 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:03:16" (1/1) ... [2024-11-08 19:03:16,721 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:03:16" (1/1) ... [2024-11-08 19:03:16,731 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:03:16" (1/1) ... [2024-11-08 19:03:16,755 INFO L175 MemorySlicer]: Split 146 memory accesses to 5 slices as follows [2, 33, 56, 35, 20]. 38 percent of accesses are in the largest equivalence class. The 16 initializations are split as follows [2, 4, 4, 4, 2]. The 19 writes are split as follows [0, 6, 6, 5, 2]. [2024-11-08 19:03:16,756 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:03:16" (1/1) ... [2024-11-08 19:03:16,756 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:03:16" (1/1) ... [2024-11-08 19:03:16,778 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:03:16" (1/1) ... [2024-11-08 19:03:16,784 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:03:16" (1/1) ... [2024-11-08 19:03:16,787 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:03:16" (1/1) ... [2024-11-08 19:03:16,790 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:03:16" (1/1) ... [2024-11-08 19:03:16,796 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:03:16,797 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:03:16,798 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:03:16,798 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:03:16,799 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:03:16" (1/1) ... [2024-11-08 19:03:16,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:03:16,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:03:16,844 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 19:03:16,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 19:03:16,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 19:03:16,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 19:03:16,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 19:03:16,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 19:03:16,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-08 19:03:16,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-08 19:03:16,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-08 19:03:16,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-08 19:03:16,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-08 19:03:16,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-08 19:03:16,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-08 19:03:16,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-08 19:03:16,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-08 19:03:16,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-08 19:03:16,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-08 19:03:16,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-08 19:03:16,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 19:03:16,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 19:03:16,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 19:03:16,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-08 19:03:16,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-08 19:03:16,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-08 19:03:16,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-08 19:03:16,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-08 19:03:16,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-08 19:03:16,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-08 19:03:16,902 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 19:03:16,902 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 19:03:16,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 19:03:16,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 19:03:16,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 19:03:16,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 19:03:16,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-08 19:03:16,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:03:16,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:03:17,073 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:03:17,076 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:03:17,911 INFO L? ?]: Removed 142 outVars from TransFormulas that were not future-live. [2024-11-08 19:03:17,911 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:03:17,936 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:03:17,938 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 19:03:17,938 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:03:17 BoogieIcfgContainer [2024-11-08 19:03:17,938 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:03:17,942 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 19:03:17,943 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 19:03:17,948 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 19:03:17,948 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 07:03:16" (1/3) ... [2024-11-08 19:03:17,950 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39b44a75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:03:17, skipping insertion in model container [2024-11-08 19:03:17,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:03:16" (2/3) ... [2024-11-08 19:03:17,951 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39b44a75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:03:17, skipping insertion in model container [2024-11-08 19:03:17,952 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:03:17" (3/3) ... [2024-11-08 19:03:17,953 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-25.i [2024-11-08 19:03:17,977 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 19:03:17,977 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 19:03:18,080 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 19:03:18,090 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@32710e92, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 19:03:18,091 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 19:03:18,096 INFO L276 IsEmpty]: Start isEmpty. Operand has 124 states, 103 states have (on average 1.4271844660194175) internal successors, (147), 104 states have internal predecessors, (147), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-08 19:03:18,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-08 19:03:18,112 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:03:18,112 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:03:18,113 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:03:18,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:03:18,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1395042437, now seen corresponding path program 1 times [2024-11-08 19:03:18,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:03:18,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273726011] [2024-11-08 19:03:18,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:03:18,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:03:18,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:18,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:03:18,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:18,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:03:18,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:18,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 19:03:18,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:18,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 19:03:18,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:18,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 19:03:18,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:18,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 19:03:18,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:18,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:03:18,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:18,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 19:03:18,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:18,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 19:03:18,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:18,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 19:03:18,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:18,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 19:03:18,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:18,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 19:03:18,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:18,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 19:03:18,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:18,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 19:03:18,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:18,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 19:03:18,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:18,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 19:03:18,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:18,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 19:03:18,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:18,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-08 19:03:18,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:18,611 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:03:18,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:03:18,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273726011] [2024-11-08 19:03:18,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273726011] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:03:18,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:03:18,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 19:03:18,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337520005] [2024-11-08 19:03:18,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:03:18,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 19:03:18,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:03:18,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 19:03:18,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 19:03:18,649 INFO L87 Difference]: Start difference. First operand has 124 states, 103 states have (on average 1.4271844660194175) internal successors, (147), 104 states have internal predecessors, (147), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 19:03:18,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:03:18,686 INFO L93 Difference]: Finished difference Result 241 states and 378 transitions. [2024-11-08 19:03:18,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 19:03:18,688 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 144 [2024-11-08 19:03:18,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:03:18,696 INFO L225 Difference]: With dead ends: 241 [2024-11-08 19:03:18,697 INFO L226 Difference]: Without dead ends: 120 [2024-11-08 19:03:18,704 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 19:03:18,711 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:03:18,711 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:03:18,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-08 19:03:18,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-11-08 19:03:18,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 100 states have (on average 1.4) internal successors, (140), 100 states have internal predecessors, (140), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-08 19:03:18,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 176 transitions. [2024-11-08 19:03:18,793 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 176 transitions. Word has length 144 [2024-11-08 19:03:18,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:03:18,797 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 176 transitions. [2024-11-08 19:03:18,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 19:03:18,798 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 176 transitions. [2024-11-08 19:03:18,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-08 19:03:18,805 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:03:18,805 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:03:18,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 19:03:18,806 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:03:18,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:03:18,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1954794203, now seen corresponding path program 1 times [2024-11-08 19:03:18,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:03:18,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767486650] [2024-11-08 19:03:18,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:03:18,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:03:18,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:20,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:03:20,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:20,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:03:20,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:20,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 19:03:20,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:20,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 19:03:20,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:20,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 19:03:20,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:20,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 19:03:20,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:20,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:03:20,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:20,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 19:03:20,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:20,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 19:03:20,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:20,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 19:03:20,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:20,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 19:03:20,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:20,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 19:03:20,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:20,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 19:03:20,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:20,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 19:03:20,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:20,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 19:03:20,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:20,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 19:03:20,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:20,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 19:03:20,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:20,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-08 19:03:20,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:20,886 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:03:20,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:03:20,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767486650] [2024-11-08 19:03:20,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767486650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:03:20,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:03:20,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 19:03:20,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133324405] [2024-11-08 19:03:20,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:03:20,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 19:03:20,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:03:20,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 19:03:20,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:03:20,894 INFO L87 Difference]: Start difference. First operand 120 states and 176 transitions. Second operand has 7 states, 6 states have (on average 9.5) internal successors, (57), 7 states have internal predecessors, (57), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 19:03:21,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:03:21,247 INFO L93 Difference]: Finished difference Result 323 states and 474 transitions. [2024-11-08 19:03:21,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 19:03:21,251 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 7 states have internal predecessors, (57), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 144 [2024-11-08 19:03:21,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:03:21,254 INFO L225 Difference]: With dead ends: 323 [2024-11-08 19:03:21,254 INFO L226 Difference]: Without dead ends: 206 [2024-11-08 19:03:21,256 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-08 19:03:21,257 INFO L432 NwaCegarLoop]: 247 mSDtfsCounter, 112 mSDsluCounter, 941 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 1188 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:03:21,258 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 1188 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 19:03:21,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2024-11-08 19:03:21,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 203. [2024-11-08 19:03:21,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 174 states have (on average 1.4080459770114941) internal successors, (245), 175 states have internal predecessors, (245), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-08 19:03:21,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 297 transitions. [2024-11-08 19:03:21,285 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 297 transitions. Word has length 144 [2024-11-08 19:03:21,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:03:21,286 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 297 transitions. [2024-11-08 19:03:21,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 7 states have internal predecessors, (57), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 19:03:21,286 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 297 transitions. [2024-11-08 19:03:21,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-08 19:03:21,294 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:03:21,294 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:03:21,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 19:03:21,294 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:03:21,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:03:21,298 INFO L85 PathProgramCache]: Analyzing trace with hash -597141495, now seen corresponding path program 1 times [2024-11-08 19:03:21,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:03:21,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887390650] [2024-11-08 19:03:21,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:03:21,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:03:21,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:21,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:03:21,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:21,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:03:21,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:21,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 19:03:21,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:21,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 19:03:21,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:21,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 19:03:21,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:21,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 19:03:21,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:21,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:03:21,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:21,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 19:03:21,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:21,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 19:03:21,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:21,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 19:03:21,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:21,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 19:03:21,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:21,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 19:03:21,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:21,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 19:03:21,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:21,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 19:03:21,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:21,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 19:03:21,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:21,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 19:03:21,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:21,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 19:03:21,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:21,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-08 19:03:21,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:21,815 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:03:21,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:03:21,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887390650] [2024-11-08 19:03:21,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887390650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:03:21,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:03:21,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:03:21,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473770746] [2024-11-08 19:03:21,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:03:21,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:03:21,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:03:21,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:03:21,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:03:21,824 INFO L87 Difference]: Start difference. First operand 203 states and 297 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:03:22,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:03:22,155 INFO L93 Difference]: Finished difference Result 436 states and 636 transitions. [2024-11-08 19:03:22,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:03:22,156 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-11-08 19:03:22,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:03:22,160 INFO L225 Difference]: With dead ends: 436 [2024-11-08 19:03:22,161 INFO L226 Difference]: Without dead ends: 236 [2024-11-08 19:03:22,162 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:03:22,167 INFO L432 NwaCegarLoop]: 228 mSDtfsCounter, 155 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:03:22,168 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 772 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 19:03:22,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2024-11-08 19:03:22,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 227. [2024-11-08 19:03:22,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 187 states have (on average 1.374331550802139) internal successors, (257), 188 states have internal predecessors, (257), 36 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-08 19:03:22,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 329 transitions. [2024-11-08 19:03:22,209 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 329 transitions. Word has length 145 [2024-11-08 19:03:22,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:03:22,211 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 329 transitions. [2024-11-08 19:03:22,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:03:22,211 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 329 transitions. [2024-11-08 19:03:22,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-08 19:03:22,213 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:03:22,213 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:03:22,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 19:03:22,218 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:03:22,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:03:22,219 INFO L85 PathProgramCache]: Analyzing trace with hash 2125708685, now seen corresponding path program 1 times [2024-11-08 19:03:22,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:03:22,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654468028] [2024-11-08 19:03:22,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:03:22,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:03:22,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:22,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:03:22,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:22,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:03:22,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:22,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 19:03:22,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:22,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 19:03:22,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:22,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 19:03:22,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:22,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 19:03:22,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:22,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:03:22,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:22,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 19:03:22,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:22,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 19:03:22,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:22,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 19:03:22,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:22,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 19:03:22,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:22,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 19:03:22,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:22,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 19:03:22,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:22,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 19:03:22,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:22,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 19:03:22,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:22,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 19:03:22,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:22,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 19:03:22,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:22,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-08 19:03:22,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:22,577 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:03:22,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:03:22,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654468028] [2024-11-08 19:03:22,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654468028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:03:22,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:03:22,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:03:22,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993162817] [2024-11-08 19:03:22,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:03:22,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:03:22,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:03:22,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:03:22,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:03:22,581 INFO L87 Difference]: Start difference. First operand 227 states and 329 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:03:22,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:03:22,643 INFO L93 Difference]: Finished difference Result 457 states and 663 transitions. [2024-11-08 19:03:22,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:03:22,644 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 146 [2024-11-08 19:03:22,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:03:22,647 INFO L225 Difference]: With dead ends: 457 [2024-11-08 19:03:22,647 INFO L226 Difference]: Without dead ends: 233 [2024-11-08 19:03:22,648 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:03:22,650 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 0 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:03:22,650 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 682 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:03:22,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2024-11-08 19:03:22,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 231. [2024-11-08 19:03:22,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 191 states have (on average 1.3664921465968587) internal successors, (261), 192 states have internal predecessors, (261), 36 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-08 19:03:22,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 333 transitions. [2024-11-08 19:03:22,686 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 333 transitions. Word has length 146 [2024-11-08 19:03:22,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:03:22,687 INFO L471 AbstractCegarLoop]: Abstraction has 231 states and 333 transitions. [2024-11-08 19:03:22,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:03:22,688 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 333 transitions. [2024-11-08 19:03:22,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-08 19:03:22,690 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:03:22,691 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:03:22,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 19:03:22,691 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:03:22,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:03:22,692 INFO L85 PathProgramCache]: Analyzing trace with hash 815439474, now seen corresponding path program 1 times [2024-11-08 19:03:22,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:03:22,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39118259] [2024-11-08 19:03:22,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:03:22,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:03:22,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:23,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:03:23,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:23,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:03:23,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:23,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 19:03:23,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:23,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 19:03:23,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:23,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 19:03:23,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:23,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 19:03:23,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:23,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:03:23,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:23,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 19:03:23,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:23,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 19:03:23,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:23,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 19:03:23,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:23,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 19:03:23,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:23,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 19:03:23,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:23,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 19:03:23,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:23,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 19:03:23,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:23,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 19:03:23,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:23,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 19:03:23,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:23,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 19:03:23,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:23,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-08 19:03:23,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:23,145 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:03:23,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:03:23,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39118259] [2024-11-08 19:03:23,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39118259] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:03:23,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:03:23,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:03:23,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955821682] [2024-11-08 19:03:23,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:03:23,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:03:23,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:03:23,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:03:23,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:03:23,148 INFO L87 Difference]: Start difference. First operand 231 states and 333 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:03:23,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:03:23,430 INFO L93 Difference]: Finished difference Result 461 states and 665 transitions. [2024-11-08 19:03:23,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:03:23,431 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 148 [2024-11-08 19:03:23,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:03:23,433 INFO L225 Difference]: With dead ends: 461 [2024-11-08 19:03:23,433 INFO L226 Difference]: Without dead ends: 233 [2024-11-08 19:03:23,434 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:03:23,435 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 138 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 809 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:03:23,435 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 809 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:03:23,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2024-11-08 19:03:23,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 224. [2024-11-08 19:03:23,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 184 states have (on average 1.358695652173913) internal successors, (250), 185 states have internal predecessors, (250), 36 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-08 19:03:23,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 322 transitions. [2024-11-08 19:03:23,455 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 322 transitions. Word has length 148 [2024-11-08 19:03:23,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:03:23,455 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 322 transitions. [2024-11-08 19:03:23,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:03:23,456 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 322 transitions. [2024-11-08 19:03:23,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-08 19:03:23,458 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:03:23,458 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:03:23,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 19:03:23,458 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:03:23,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:03:23,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1048802290, now seen corresponding path program 1 times [2024-11-08 19:03:23,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:03:23,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683512317] [2024-11-08 19:03:23,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:03:23,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:03:23,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:24,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:03:24,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:24,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:03:24,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:24,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 19:03:24,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:24,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 19:03:24,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:24,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 19:03:24,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:24,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 19:03:24,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:24,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:03:24,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:24,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 19:03:24,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:24,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 19:03:24,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:24,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 19:03:24,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:24,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 19:03:24,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:24,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 19:03:24,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:24,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 19:03:24,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:24,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 19:03:24,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:24,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 19:03:24,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:24,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 19:03:24,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:24,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 19:03:24,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:24,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-08 19:03:24,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:24,675 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 6 proven. 45 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-08 19:03:24,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:03:24,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683512317] [2024-11-08 19:03:24,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683512317] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:03:24,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1608813420] [2024-11-08 19:03:24,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:03:24,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:03:24,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:03:24,679 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:03:24,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 19:03:24,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:24,947 INFO L255 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-08 19:03:25,012 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:03:25,133 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2024-11-08 19:03:25,524 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2024-11-08 19:03:25,571 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:03:25,572 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 14 [2024-11-08 19:03:25,589 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 141 proven. 45 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2024-11-08 19:03:25,590 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:03:26,025 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 6 proven. 45 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-08 19:03:26,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1608813420] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:03:26,026 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:03:26,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 15 [2024-11-08 19:03:26,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489522606] [2024-11-08 19:03:26,027 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:03:26,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 19:03:26,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:03:26,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 19:03:26,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2024-11-08 19:03:26,029 INFO L87 Difference]: Start difference. First operand 224 states and 322 transitions. Second operand has 15 states, 11 states have (on average 7.363636363636363) internal successors, (81), 15 states have internal predecessors, (81), 7 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (38), 3 states have call predecessors, (38), 7 states have call successors, (38) [2024-11-08 19:03:27,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:03:27,576 INFO L93 Difference]: Finished difference Result 591 states and 838 transitions. [2024-11-08 19:03:27,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-08 19:03:27,577 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 11 states have (on average 7.363636363636363) internal successors, (81), 15 states have internal predecessors, (81), 7 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (38), 3 states have call predecessors, (38), 7 states have call successors, (38) Word has length 148 [2024-11-08 19:03:27,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:03:27,580 INFO L225 Difference]: With dead ends: 591 [2024-11-08 19:03:27,580 INFO L226 Difference]: Without dead ends: 370 [2024-11-08 19:03:27,582 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 324 SyntacticMatches, 6 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=326, Invalid=1080, Unknown=0, NotChecked=0, Total=1406 [2024-11-08 19:03:27,583 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 1049 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1050 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 19:03:27,583 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1050 Valid, 655 Invalid, 908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 19:03:27,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2024-11-08 19:03:27,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 351. [2024-11-08 19:03:27,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 288 states have (on average 1.3472222222222223) internal successors, (388), 290 states have internal predecessors, (388), 54 states have call successors, (54), 8 states have call predecessors, (54), 8 states have return successors, (54), 52 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-08 19:03:27,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 496 transitions. [2024-11-08 19:03:27,623 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 496 transitions. Word has length 148 [2024-11-08 19:03:27,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:03:27,624 INFO L471 AbstractCegarLoop]: Abstraction has 351 states and 496 transitions. [2024-11-08 19:03:27,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 11 states have (on average 7.363636363636363) internal successors, (81), 15 states have internal predecessors, (81), 7 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (38), 3 states have call predecessors, (38), 7 states have call successors, (38) [2024-11-08 19:03:27,624 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 496 transitions. [2024-11-08 19:03:27,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-08 19:03:27,627 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:03:27,627 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:03:27,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 19:03:27,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-08 19:03:27,828 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:03:27,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:03:27,828 INFO L85 PathProgramCache]: Analyzing trace with hash -872880992, now seen corresponding path program 1 times [2024-11-08 19:03:27,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:03:27,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742114062] [2024-11-08 19:03:27,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:03:27,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:03:27,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:28,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:03:28,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:28,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:03:28,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:28,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 19:03:28,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:28,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 19:03:28,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:28,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 19:03:28,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:28,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 19:03:28,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:28,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:03:28,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:28,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 19:03:28,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:28,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 19:03:28,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:28,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 19:03:28,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:28,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 19:03:28,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:28,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 19:03:28,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:28,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 19:03:28,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:28,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 19:03:28,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:28,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 19:03:28,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:28,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 19:03:28,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:28,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 19:03:28,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:28,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-08 19:03:28,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:28,338 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:03:28,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:03:28,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742114062] [2024-11-08 19:03:28,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742114062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:03:28,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:03:28,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 19:03:28,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903016564] [2024-11-08 19:03:28,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:03:28,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:03:28,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:03:28,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:03:28,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:03:28,343 INFO L87 Difference]: Start difference. First operand 351 states and 496 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:03:28,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:03:28,588 INFO L93 Difference]: Finished difference Result 901 states and 1273 transitions. [2024-11-08 19:03:28,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 19:03:28,589 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 149 [2024-11-08 19:03:28,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:03:28,593 INFO L225 Difference]: With dead ends: 901 [2024-11-08 19:03:28,593 INFO L226 Difference]: Without dead ends: 553 [2024-11-08 19:03:28,594 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:03:28,595 INFO L432 NwaCegarLoop]: 289 mSDtfsCounter, 145 mSDsluCounter, 709 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 998 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:03:28,596 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 998 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:03:28,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-08 19:03:28,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 549. [2024-11-08 19:03:28,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 453 states have (on average 1.34878587196468) internal successors, (611), 457 states have internal predecessors, (611), 82 states have call successors, (82), 13 states have call predecessors, (82), 13 states have return successors, (82), 78 states have call predecessors, (82), 82 states have call successors, (82) [2024-11-08 19:03:28,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 775 transitions. [2024-11-08 19:03:28,675 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 775 transitions. Word has length 149 [2024-11-08 19:03:28,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:03:28,676 INFO L471 AbstractCegarLoop]: Abstraction has 549 states and 775 transitions. [2024-11-08 19:03:28,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:03:28,676 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 775 transitions. [2024-11-08 19:03:28,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-08 19:03:28,679 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:03:28,679 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:03:28,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 19:03:28,680 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:03:28,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:03:28,680 INFO L85 PathProgramCache]: Analyzing trace with hash 2119562149, now seen corresponding path program 1 times [2024-11-08 19:03:28,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:03:28,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017541541] [2024-11-08 19:03:28,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:03:28,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:03:28,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:31,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:03:31,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:31,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:03:31,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:31,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 19:03:31,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:31,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 19:03:31,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:31,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 19:03:31,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:31,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 19:03:31,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:31,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:03:31,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:31,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 19:03:31,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:31,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 19:03:31,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:31,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 19:03:31,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:31,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 19:03:31,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:31,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 19:03:31,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:31,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 19:03:31,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:31,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 19:03:31,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:31,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 19:03:31,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:31,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 19:03:31,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:31,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 19:03:31,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:31,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-08 19:03:31,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:31,555 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:03:31,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:03:31,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017541541] [2024-11-08 19:03:31,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017541541] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:03:31,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:03:31,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-08 19:03:31,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361630993] [2024-11-08 19:03:31,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:03:31,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 19:03:31,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:03:31,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 19:03:31,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2024-11-08 19:03:31,558 INFO L87 Difference]: Start difference. First operand 549 states and 775 transitions. Second operand has 14 states, 12 states have (on average 5.333333333333333) internal successors, (64), 14 states have internal predecessors, (64), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-08 19:03:32,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:03:32,446 INFO L93 Difference]: Finished difference Result 1293 states and 1821 transitions. [2024-11-08 19:03:32,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 19:03:32,447 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 5.333333333333333) internal successors, (64), 14 states have internal predecessors, (64), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) Word has length 151 [2024-11-08 19:03:32,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:03:32,451 INFO L225 Difference]: With dead ends: 1293 [2024-11-08 19:03:32,452 INFO L226 Difference]: Without dead ends: 747 [2024-11-08 19:03:32,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2024-11-08 19:03:32,454 INFO L432 NwaCegarLoop]: 252 mSDtfsCounter, 137 mSDsluCounter, 2503 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 2755 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 19:03:32,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 2755 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 19:03:32,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2024-11-08 19:03:32,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 737. [2024-11-08 19:03:32,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 737 states, 620 states have (on average 1.3580645161290323) internal successors, (842), 626 states have internal predecessors, (842), 98 states have call successors, (98), 18 states have call predecessors, (98), 18 states have return successors, (98), 92 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-08 19:03:32,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 1038 transitions. [2024-11-08 19:03:32,548 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 1038 transitions. Word has length 151 [2024-11-08 19:03:32,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:03:32,549 INFO L471 AbstractCegarLoop]: Abstraction has 737 states and 1038 transitions. [2024-11-08 19:03:32,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 5.333333333333333) internal successors, (64), 14 states have internal predecessors, (64), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-08 19:03:32,550 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 1038 transitions. [2024-11-08 19:03:32,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-08 19:03:32,552 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:03:32,553 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:03:32,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 19:03:32,553 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:03:32,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:03:32,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1532756135, now seen corresponding path program 1 times [2024-11-08 19:03:32,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:03:32,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539058718] [2024-11-08 19:03:32,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:03:32,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:03:32,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:33,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:03:33,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:33,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:03:33,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:33,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 19:03:33,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:33,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 19:03:33,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:33,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 19:03:33,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:33,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 19:03:33,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:33,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:03:33,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:33,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 19:03:33,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:33,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 19:03:33,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:33,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 19:03:33,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:33,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 19:03:33,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:33,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 19:03:33,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:33,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 19:03:33,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:33,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 19:03:33,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:33,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 19:03:33,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:33,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 19:03:33,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:33,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 19:03:33,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:33,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-08 19:03:33,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:33,889 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:03:33,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:03:33,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539058718] [2024-11-08 19:03:33,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539058718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:03:33,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:03:33,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 19:03:33,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777895326] [2024-11-08 19:03:33,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:03:33,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 19:03:33,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:03:33,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 19:03:33,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:03:33,893 INFO L87 Difference]: Start difference. First operand 737 states and 1038 transitions. Second operand has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 8 states have internal predecessors, (64), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 19:03:34,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:03:34,631 INFO L93 Difference]: Finished difference Result 1491 states and 2096 transitions. [2024-11-08 19:03:34,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 19:03:34,632 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 8 states have internal predecessors, (64), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 151 [2024-11-08 19:03:34,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:03:34,636 INFO L225 Difference]: With dead ends: 1491 [2024-11-08 19:03:34,636 INFO L226 Difference]: Without dead ends: 757 [2024-11-08 19:03:34,638 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-08 19:03:34,639 INFO L432 NwaCegarLoop]: 307 mSDtfsCounter, 139 mSDsluCounter, 1248 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 1555 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 19:03:34,639 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 1555 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 19:03:34,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2024-11-08 19:03:34,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 753. [2024-11-08 19:03:34,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 753 states, 626 states have (on average 1.3482428115015974) internal successors, (844), 632 states have internal predecessors, (844), 106 states have call successors, (106), 20 states have call predecessors, (106), 20 states have return successors, (106), 100 states have call predecessors, (106), 106 states have call successors, (106) [2024-11-08 19:03:34,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 753 states and 1056 transitions. [2024-11-08 19:03:34,756 INFO L78 Accepts]: Start accepts. Automaton has 753 states and 1056 transitions. Word has length 151 [2024-11-08 19:03:34,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:03:34,757 INFO L471 AbstractCegarLoop]: Abstraction has 753 states and 1056 transitions. [2024-11-08 19:03:34,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 8 states have internal predecessors, (64), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 19:03:34,757 INFO L276 IsEmpty]: Start isEmpty. Operand 753 states and 1056 transitions. [2024-11-08 19:03:34,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-08 19:03:34,759 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:03:34,760 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:03:34,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 19:03:34,760 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:03:34,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:03:34,761 INFO L85 PathProgramCache]: Analyzing trace with hash -252177113, now seen corresponding path program 1 times [2024-11-08 19:03:34,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:03:34,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366018475] [2024-11-08 19:03:34,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:03:34,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:03:34,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:40,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:03:40,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:40,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:03:40,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:40,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 19:03:40,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:40,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 19:03:40,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:40,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 19:03:40,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:40,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 19:03:40,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:40,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:03:40,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:40,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 19:03:40,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:40,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 19:03:40,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:40,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 19:03:40,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:40,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 19:03:40,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:40,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 19:03:40,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:40,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 19:03:40,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:40,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 19:03:40,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:40,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 19:03:40,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:40,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 19:03:40,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:40,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 19:03:40,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:40,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-08 19:03:40,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:40,920 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:03:40,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:03:40,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366018475] [2024-11-08 19:03:40,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366018475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:03:40,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:03:40,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 19:03:40,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452217391] [2024-11-08 19:03:40,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:03:40,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 19:03:40,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:03:40,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 19:03:40,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:03:40,923 INFO L87 Difference]: Start difference. First operand 753 states and 1056 transitions. Second operand has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 8 states have internal predecessors, (64), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 19:03:42,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:03:42,307 INFO L93 Difference]: Finished difference Result 1515 states and 2118 transitions. [2024-11-08 19:03:42,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 19:03:42,307 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 8 states have internal predecessors, (64), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 151 [2024-11-08 19:03:42,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:03:42,313 INFO L225 Difference]: With dead ends: 1515 [2024-11-08 19:03:42,313 INFO L226 Difference]: Without dead ends: 765 [2024-11-08 19:03:42,315 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-08 19:03:42,316 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 142 mSDsluCounter, 1049 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 1265 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:03:42,317 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 1265 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 19:03:42,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2024-11-08 19:03:42,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 733. [2024-11-08 19:03:42,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 733 states, 616 states have (on average 1.3506493506493507) internal successors, (832), 622 states have internal predecessors, (832), 96 states have call successors, (96), 20 states have call predecessors, (96), 20 states have return successors, (96), 90 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-08 19:03:42,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 1024 transitions. [2024-11-08 19:03:42,450 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 1024 transitions. Word has length 151 [2024-11-08 19:03:42,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:03:42,453 INFO L471 AbstractCegarLoop]: Abstraction has 733 states and 1024 transitions. [2024-11-08 19:03:42,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 8 states have internal predecessors, (64), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 19:03:42,454 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 1024 transitions. [2024-11-08 19:03:42,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-08 19:03:42,456 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:03:42,456 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:03:42,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 19:03:42,456 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:03:42,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:03:42,457 INFO L85 PathProgramCache]: Analyzing trace with hash -838983127, now seen corresponding path program 1 times [2024-11-08 19:03:42,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:03:42,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10454310] [2024-11-08 19:03:42,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:03:42,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:03:42,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:45,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:03:45,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:45,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:03:45,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:45,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 19:03:45,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:45,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 19:03:45,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:45,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 19:03:45,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:45,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 19:03:45,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:45,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:03:45,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:45,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 19:03:45,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:45,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 19:03:45,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:45,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 19:03:45,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:45,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 19:03:45,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:45,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 19:03:45,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:45,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 19:03:45,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:45,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 19:03:45,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:45,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 19:03:45,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:45,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 19:03:45,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:45,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 19:03:45,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:45,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-08 19:03:45,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:03:45,514 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:03:45,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:03:45,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10454310] [2024-11-08 19:03:45,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10454310] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:03:45,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:03:45,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-08 19:03:45,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978036926] [2024-11-08 19:03:45,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:03:45,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-08 19:03:45,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:03:45,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-08 19:03:45,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2024-11-08 19:03:45,517 INFO L87 Difference]: Start difference. First operand 733 states and 1024 transitions. Second operand has 16 states, 13 states have (on average 4.923076923076923) internal successors, (64), 16 states have internal predecessors, (64), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-08 19:03:50,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 19:03:54,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 19:03:58,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 19:04:02,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 19:04:06,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 19:04:10,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 19:04:14,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 19:04:18,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 19:04:22,763 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 19:04:26,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 19:04:30,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 19:04:34,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 19:04:38,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 19:04:39,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:04:39,595 INFO L93 Difference]: Finished difference Result 1515 states and 2106 transitions. [2024-11-08 19:04:39,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-08 19:04:39,596 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 4.923076923076923) internal successors, (64), 16 states have internal predecessors, (64), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) Word has length 151 [2024-11-08 19:04:39,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:04:39,601 INFO L225 Difference]: With dead ends: 1515 [2024-11-08 19:04:39,601 INFO L226 Difference]: Without dead ends: 785 [2024-11-08 19:04:39,605 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2024-11-08 19:04:39,606 INFO L432 NwaCegarLoop]: 292 mSDtfsCounter, 129 mSDsluCounter, 3106 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 1 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 3398 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.5s IncrementalHoareTripleChecker+Time [2024-11-08 19:04:39,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 3398 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 681 Invalid, 13 Unknown, 0 Unchecked, 53.5s Time] [2024-11-08 19:04:39,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 785 states. [2024-11-08 19:04:39,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 785 to 689. [2024-11-08 19:04:39,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 689 states, 575 states have (on average 1.346086956521739) internal successors, (774), 581 states have internal predecessors, (774), 92 states have call successors, (92), 21 states have call predecessors, (92), 21 states have return successors, (92), 86 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-08 19:04:39,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 958 transitions. [2024-11-08 19:04:39,780 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 958 transitions. Word has length 151 [2024-11-08 19:04:39,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:04:39,781 INFO L471 AbstractCegarLoop]: Abstraction has 689 states and 958 transitions. [2024-11-08 19:04:39,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 4.923076923076923) internal successors, (64), 16 states have internal predecessors, (64), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-08 19:04:39,782 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 958 transitions. [2024-11-08 19:04:39,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-08 19:04:39,786 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:04:39,786 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:04:39,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 19:04:39,787 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:04:39,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:04:39,787 INFO L85 PathProgramCache]: Analyzing trace with hash 840708178, now seen corresponding path program 1 times [2024-11-08 19:04:39,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:04:39,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215040858] [2024-11-08 19:04:39,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:04:39,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:04:39,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:04:39,905 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:04:39,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:04:40,078 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 19:04:40,078 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 19:04:40,080 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 19:04:40,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 19:04:40,086 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:04:40,227 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 19:04:40,231 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 07:04:40 BoogieIcfgContainer [2024-11-08 19:04:40,231 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 19:04:40,232 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 19:04:40,232 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 19:04:40,232 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 19:04:40,233 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:03:17" (3/4) ... [2024-11-08 19:04:40,236 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 19:04:40,238 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 19:04:40,238 INFO L158 Benchmark]: Toolchain (without parser) took 84191.44ms. Allocated memory was 134.2MB in the beginning and 559.9MB in the end (delta: 425.7MB). Free memory was 102.5MB in the beginning and 479.8MB in the end (delta: -377.2MB). Peak memory consumption was 51.5MB. Max. memory is 16.1GB. [2024-11-08 19:04:40,239 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 134.2MB. Free memory is still 81.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:04:40,239 INFO L158 Benchmark]: CACSL2BoogieTranslator took 551.45ms. Allocated memory is still 134.2MB. Free memory was 102.5MB in the beginning and 84.6MB in the end (delta: 17.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-08 19:04:40,239 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.43ms. Allocated memory is still 134.2MB. Free memory was 84.6MB in the beginning and 80.1MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 19:04:40,240 INFO L158 Benchmark]: Boogie Preprocessor took 98.22ms. Allocated memory is still 134.2MB. Free memory was 80.1MB in the beginning and 75.1MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 19:04:40,241 INFO L158 Benchmark]: RCFGBuilder took 1141.41ms. Allocated memory was 134.2MB in the beginning and 180.4MB in the end (delta: 46.1MB). Free memory was 74.8MB in the beginning and 129.1MB in the end (delta: -54.3MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. [2024-11-08 19:04:40,241 INFO L158 Benchmark]: TraceAbstraction took 82289.63ms. Allocated memory was 180.4MB in the beginning and 559.9MB in the end (delta: 379.6MB). Free memory was 128.3MB in the beginning and 479.8MB in the end (delta: -351.5MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. [2024-11-08 19:04:40,241 INFO L158 Benchmark]: Witness Printer took 5.71ms. Allocated memory is still 559.9MB. Free memory is still 479.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:04:40,244 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 134.2MB. Free memory is still 81.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 551.45ms. Allocated memory is still 134.2MB. Free memory was 102.5MB in the beginning and 84.6MB in the end (delta: 17.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 91.43ms. Allocated memory is still 134.2MB. Free memory was 84.6MB in the beginning and 80.1MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 98.22ms. Allocated memory is still 134.2MB. Free memory was 80.1MB in the beginning and 75.1MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1141.41ms. Allocated memory was 134.2MB in the beginning and 180.4MB in the end (delta: 46.1MB). Free memory was 74.8MB in the beginning and 129.1MB in the end (delta: -54.3MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. * TraceAbstraction took 82289.63ms. Allocated memory was 180.4MB in the beginning and 559.9MB in the end (delta: 379.6MB). Free memory was 128.3MB in the beginning and 479.8MB in the end (delta: -351.5MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. * Witness Printer took 5.71ms. Allocated memory is still 559.9MB. Free memory is still 479.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 101. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2][2] = { {1, 1}, {0, 0} }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2][2] = { {1, 1}, {0, 0} }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2][2] = { {1, 1}, {0, 0} }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2][2] = { {1, 1}, {0, 0} }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2][2] = { {1, 1}, {0, 0} }; [L25-L27] float float_Array_0[2][2] = { {63.363, 128.9}, {4.575, 25.5} }; [L25-L27] float float_Array_0[2][2] = { {63.363, 128.9}, {4.575, 25.5} }; [L25-L27] float float_Array_0[2][2] = { {63.363, 128.9}, {4.575, 25.5} }; [L25-L27] float float_Array_0[2][2] = { {63.363, 128.9}, {4.575, 25.5} }; [L25-L27] float float_Array_0[2][2] = { {63.363, 128.9}, {4.575, 25.5} }; [L28-L30] unsigned long int unsigned_long_int_Array_0[2][2] = { {10, 0}, {1509114200, 256} }; [L28-L30] unsigned long int unsigned_long_int_Array_0[2][2] = { {10, 0}, {1509114200, 256} }; [L28-L30] unsigned long int unsigned_long_int_Array_0[2][2] = { {10, 0}, {1509114200, 256} }; [L28-L30] unsigned long int unsigned_long_int_Array_0[2][2] = { {10, 0}, {1509114200, 256} }; [L28-L30] unsigned long int unsigned_long_int_Array_0[2][2] = { {10, 0}, {1509114200, 256} }; [L31-L33] unsigned short int unsigned_short_int_Array_0[2] = { 500, 10 }; [L31-L33] unsigned short int unsigned_short_int_Array_0[2] = { 500, 10 }; [L31-L33] unsigned short int unsigned_short_int_Array_0[2] = { 500, 10 }; VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=0, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L105] isInitial = 1 [L106] FCALL initially() [L107] COND TRUE 1 [L108] FCALL updateLastVariables() [L109] CALL updateVariables() [L69] BOOL_unsigned_char_Array_0[1][0] = __VERIFIER_nondet_uchar() [L70] EXPR BOOL_unsigned_char_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L70] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1][0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L70] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1][0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L71] EXPR BOOL_unsigned_char_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L71] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1][0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L71] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1][0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L72] BOOL_unsigned_char_Array_0[0][1] = __VERIFIER_nondet_uchar() [L73] EXPR BOOL_unsigned_char_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L73] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0][1] >= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L73] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0][1] >= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L74] EXPR BOOL_unsigned_char_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L74] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0][1] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L74] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0][1] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L75] BOOL_unsigned_char_Array_0[1][1] = __VERIFIER_nondet_uchar() [L76] EXPR BOOL_unsigned_char_Array_0[1][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L76] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1][1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L76] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1][1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L77] EXPR BOOL_unsigned_char_Array_0[1][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L77] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1][1] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L77] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1][1] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L78] float_Array_0[0][0] = __VERIFIER_nondet_float() [L79] EXPR float_Array_0[0][0] [L79] EXPR float_Array_0[0][0] >= -922337.2036854765600e+13F && float_Array_0[0][0] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L79] EXPR float_Array_0[0][0] >= -922337.2036854765600e+13F && float_Array_0[0][0] <= -1.0e-20F [L79] EXPR float_Array_0[0][0] [L79] EXPR float_Array_0[0][0] >= -922337.2036854765600e+13F && float_Array_0[0][0] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L79] EXPR (float_Array_0[0][0] >= -922337.2036854765600e+13F && float_Array_0[0][0] <= -1.0e-20F) || (float_Array_0[0][0] <= 9223372.036854765600e+12F && float_Array_0[0][0] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L79] EXPR (float_Array_0[0][0] >= -922337.2036854765600e+13F && float_Array_0[0][0] <= -1.0e-20F) || (float_Array_0[0][0] <= 9223372.036854765600e+12F && float_Array_0[0][0] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L79] CALL assume_abort_if_not((float_Array_0[0][0] >= -922337.2036854765600e+13F && float_Array_0[0][0] <= -1.0e-20F) || (float_Array_0[0][0] <= 9223372.036854765600e+12F && float_Array_0[0][0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L79] RET assume_abort_if_not((float_Array_0[0][0] >= -922337.2036854765600e+13F && float_Array_0[0][0] <= -1.0e-20F) || (float_Array_0[0][0] <= 9223372.036854765600e+12F && float_Array_0[0][0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L80] float_Array_0[1][0] = __VERIFIER_nondet_float() [L81] EXPR float_Array_0[1][0] [L81] EXPR float_Array_0[1][0] >= -922337.2036854765600e+13F && float_Array_0[1][0] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L81] EXPR float_Array_0[1][0] >= -922337.2036854765600e+13F && float_Array_0[1][0] <= -1.0e-20F [L81] EXPR float_Array_0[1][0] [L81] EXPR float_Array_0[1][0] >= -922337.2036854765600e+13F && float_Array_0[1][0] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L81] EXPR (float_Array_0[1][0] >= -922337.2036854765600e+13F && float_Array_0[1][0] <= -1.0e-20F) || (float_Array_0[1][0] <= 9223372.036854765600e+12F && float_Array_0[1][0] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L81] EXPR (float_Array_0[1][0] >= -922337.2036854765600e+13F && float_Array_0[1][0] <= -1.0e-20F) || (float_Array_0[1][0] <= 9223372.036854765600e+12F && float_Array_0[1][0] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L81] CALL assume_abort_if_not((float_Array_0[1][0] >= -922337.2036854765600e+13F && float_Array_0[1][0] <= -1.0e-20F) || (float_Array_0[1][0] <= 9223372.036854765600e+12F && float_Array_0[1][0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L81] RET assume_abort_if_not((float_Array_0[1][0] >= -922337.2036854765600e+13F && float_Array_0[1][0] <= -1.0e-20F) || (float_Array_0[1][0] <= 9223372.036854765600e+12F && float_Array_0[1][0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L82] unsigned_long_int_Array_0[0][0] = __VERIFIER_nondet_ulong() [L83] EXPR unsigned_long_int_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L83] CALL assume_abort_if_not(unsigned_long_int_Array_0[0][0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L83] RET assume_abort_if_not(unsigned_long_int_Array_0[0][0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L84] EXPR unsigned_long_int_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L84] CALL assume_abort_if_not(unsigned_long_int_Array_0[0][0] <= 1073741823) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L84] RET assume_abort_if_not(unsigned_long_int_Array_0[0][0] <= 1073741823) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L85] unsigned_long_int_Array_0[1][0] = __VERIFIER_nondet_ulong() [L86] EXPR unsigned_long_int_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L86] CALL assume_abort_if_not(unsigned_long_int_Array_0[1][0] >= 1073741823) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L86] RET assume_abort_if_not(unsigned_long_int_Array_0[1][0] >= 1073741823) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L87] EXPR unsigned_long_int_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L87] CALL assume_abort_if_not(unsigned_long_int_Array_0[1][0] <= 2147483647) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L87] RET assume_abort_if_not(unsigned_long_int_Array_0[1][0] <= 2147483647) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L88] unsigned_long_int_Array_0[0][1] = __VERIFIER_nondet_ulong() [L89] EXPR unsigned_long_int_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L89] CALL assume_abort_if_not(unsigned_long_int_Array_0[0][1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L89] RET assume_abort_if_not(unsigned_long_int_Array_0[0][1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L90] EXPR unsigned_long_int_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L90] CALL assume_abort_if_not(unsigned_long_int_Array_0[0][1] <= 1073741823) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L90] RET assume_abort_if_not(unsigned_long_int_Array_0[0][1] <= 1073741823) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L91] unsigned_short_int_Array_0[0] = __VERIFIER_nondet_ushort() [L92] EXPR unsigned_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L92] CALL assume_abort_if_not(unsigned_short_int_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L92] RET assume_abort_if_not(unsigned_short_int_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L93] EXPR unsigned_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L93] CALL assume_abort_if_not(unsigned_short_int_Array_0[0] <= 65535) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L93] RET assume_abort_if_not(unsigned_short_int_Array_0[0] <= 65535) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L94] unsigned_short_int_Array_0[1] = __VERIFIER_nondet_ushort() [L95] EXPR unsigned_short_int_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L95] CALL assume_abort_if_not(unsigned_short_int_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L95] RET assume_abort_if_not(unsigned_short_int_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L96] EXPR unsigned_short_int_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L96] CALL assume_abort_if_not(unsigned_short_int_Array_0[1] <= 65535) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L96] RET assume_abort_if_not(unsigned_short_int_Array_0[1] <= 65535) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L109] RET updateVariables() [L110] CALL step() [L37] EXPR float_Array_0[0][0] [L37] EXPR float_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L37] COND FALSE !(float_Array_0[0][0] != float_Array_0[1][0]) [L44] EXPR BOOL_unsigned_char_Array_0[0][1] [L44] BOOL_unsigned_char_Array_0[0][0] = BOOL_unsigned_char_Array_0[0][1] [L46] EXPR unsigned_short_int_Array_0[1] [L46] unsigned short int stepLocal_0 = unsigned_short_int_Array_0[1]; [L47] BOOL_unsigned_char_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L47] COND TRUE BOOL_unsigned_char_Array_0[0][0] [L48] EXPR unsigned_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L48] COND FALSE !(stepLocal_0 <= unsigned_short_int_Array_0[0]) [L54] EXPR unsigned_long_int_Array_0[1][1] [L54] unsigned long int stepLocal_1 = unsigned_long_int_Array_0[1][1]; [L55] EXPR unsigned_long_int_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L55] COND TRUE unsigned_long_int_Array_0[0][0] >= stepLocal_1 [L56] EXPR float_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L56] EXPR ((0.5f) < (float_Array_0[0][0])) ? (0.5f) : (float_Array_0[0][0]) [L56] EXPR ((0.5f) < (float_Array_0[0][0])) ? (0.5f) : (float_Array_0[0][0]) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L56] float_Array_0[0][1] = ((((0.5f) < (float_Array_0[0][0])) ? (0.5f) : (float_Array_0[0][0]))) [L60] EXPR float_Array_0[1][0] [L60] EXPR float_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L60] EXPR ((128.175f) > (float_Array_0[0][0])) ? (128.175f) : (float_Array_0[0][0]) [L60] EXPR ((128.175f) > (float_Array_0[0][0])) ? (128.175f) : (float_Array_0[0][0]) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L60] EXPR float_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L60] EXPR ((((((128.175f) > (float_Array_0[0][0])) ? (128.175f) : (float_Array_0[0][0])))) < (float_Array_0[0][1])) ? (((((128.175f) > (float_Array_0[0][0])) ? (128.175f) : (float_Array_0[0][0])))) : (float_Array_0[0][1]) [L60] EXPR float_Array_0[0][1] [L60] EXPR ((((((128.175f) > (float_Array_0[0][0])) ? (128.175f) : (float_Array_0[0][0])))) < (float_Array_0[0][1])) ? (((((128.175f) > (float_Array_0[0][0])) ? (128.175f) : (float_Array_0[0][0])))) : (float_Array_0[0][1]) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L60] COND TRUE float_Array_0[1][0] >= ((((((((128.175f) > (float_Array_0[0][0])) ? (128.175f) : (float_Array_0[0][0])))) < (float_Array_0[0][1])) ? (((((128.175f) > (float_Array_0[0][0])) ? (128.175f) : (float_Array_0[0][0])))) : (float_Array_0[0][1]))) [L61] EXPR float_Array_0[1][0] [L61] float_Array_0[1][1] = float_Array_0[1][0] [L110] RET step() [L111] CALL, EXPR property() [L101] EXPR BOOL_unsigned_char_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L101] EXPR BOOL_unsigned_char_Array_0[0][0] ? ((unsigned_short_int_Array_0[1] <= unsigned_short_int_Array_0[0]) ? (unsigned_long_int_Array_0[1][1] == ((unsigned long int) (((((unsigned_short_int_Array_0[1]) > ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1]))) ? (unsigned_short_int_Array_0[1]) : ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1])))) + (unsigned_long_int_Array_0[1][0] - unsigned_long_int_Array_0[0][0])))) : 1) : (unsigned_long_int_Array_0[1][1] == ((unsigned long int) unsigned_long_int_Array_0[0][0])) [L101] EXPR unsigned_short_int_Array_0[1] [L101] EXPR unsigned_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L101] EXPR (unsigned_short_int_Array_0[1] <= unsigned_short_int_Array_0[0]) ? (unsigned_long_int_Array_0[1][1] == ((unsigned long int) (((((unsigned_short_int_Array_0[1]) > ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1]))) ? (unsigned_short_int_Array_0[1]) : ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1])))) + (unsigned_long_int_Array_0[1][0] - unsigned_long_int_Array_0[0][0])))) : 1 [L101] EXPR (unsigned_short_int_Array_0[1] <= unsigned_short_int_Array_0[0]) ? (unsigned_long_int_Array_0[1][1] == ((unsigned long int) (((((unsigned_short_int_Array_0[1]) > ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1]))) ? (unsigned_short_int_Array_0[1]) : ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1])))) + (unsigned_long_int_Array_0[1][0] - unsigned_long_int_Array_0[0][0])))) : 1 VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L101] EXPR BOOL_unsigned_char_Array_0[0][0] ? ((unsigned_short_int_Array_0[1] <= unsigned_short_int_Array_0[0]) ? (unsigned_long_int_Array_0[1][1] == ((unsigned long int) (((((unsigned_short_int_Array_0[1]) > ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1]))) ? (unsigned_short_int_Array_0[1]) : ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1])))) + (unsigned_long_int_Array_0[1][0] - unsigned_long_int_Array_0[0][0])))) : 1) : (unsigned_long_int_Array_0[1][1] == ((unsigned long int) unsigned_long_int_Array_0[0][0])) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L101] EXPR (BOOL_unsigned_char_Array_0[0][0] ? ((unsigned_short_int_Array_0[1] <= unsigned_short_int_Array_0[0]) ? (unsigned_long_int_Array_0[1][1] == ((unsigned long int) (((((unsigned_short_int_Array_0[1]) > ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1]))) ? (unsigned_short_int_Array_0[1]) : ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1])))) + (unsigned_long_int_Array_0[1][0] - unsigned_long_int_Array_0[0][0])))) : 1) : (unsigned_long_int_Array_0[1][1] == ((unsigned long int) unsigned_long_int_Array_0[0][0]))) && ((unsigned_long_int_Array_0[0][0] >= unsigned_long_int_Array_0[1][1]) ? (float_Array_0[0][1] == ((float) ((((0.5f) < (float_Array_0[0][0])) ? (0.5f) : (float_Array_0[0][0]))))) : (float_Array_0[0][1] == ((float) ((((float_Array_0[0][0]) < (float_Array_0[1][0])) ? (float_Array_0[0][0]) : (float_Array_0[1][0])))))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L101] EXPR (BOOL_unsigned_char_Array_0[0][0] ? ((unsigned_short_int_Array_0[1] <= unsigned_short_int_Array_0[0]) ? (unsigned_long_int_Array_0[1][1] == ((unsigned long int) (((((unsigned_short_int_Array_0[1]) > ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1]))) ? (unsigned_short_int_Array_0[1]) : ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1])))) + (unsigned_long_int_Array_0[1][0] - unsigned_long_int_Array_0[0][0])))) : 1) : (unsigned_long_int_Array_0[1][1] == ((unsigned long int) unsigned_long_int_Array_0[0][0]))) && ((unsigned_long_int_Array_0[0][0] >= unsigned_long_int_Array_0[1][1]) ? (float_Array_0[0][1] == ((float) ((((0.5f) < (float_Array_0[0][0])) ? (0.5f) : (float_Array_0[0][0]))))) : (float_Array_0[0][1] == ((float) ((((float_Array_0[0][0]) < (float_Array_0[1][0])) ? (float_Array_0[0][0]) : (float_Array_0[1][0])))))) [L101] EXPR unsigned_long_int_Array_0[0][0] [L101] EXPR unsigned_long_int_Array_0[1][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L101] EXPR (unsigned_long_int_Array_0[0][0] >= unsigned_long_int_Array_0[1][1]) ? (float_Array_0[0][1] == ((float) ((((0.5f) < (float_Array_0[0][0])) ? (0.5f) : (float_Array_0[0][0]))))) : (float_Array_0[0][1] == ((float) ((((float_Array_0[0][0]) < (float_Array_0[1][0])) ? (float_Array_0[0][0]) : (float_Array_0[1][0]))))) [L101] EXPR float_Array_0[0][1] [L101] EXPR float_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L101] EXPR ((0.5f) < (float_Array_0[0][0])) ? (0.5f) : (float_Array_0[0][0]) [L101] EXPR ((0.5f) < (float_Array_0[0][0])) ? (0.5f) : (float_Array_0[0][0]) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L101] EXPR (unsigned_long_int_Array_0[0][0] >= unsigned_long_int_Array_0[1][1]) ? (float_Array_0[0][1] == ((float) ((((0.5f) < (float_Array_0[0][0])) ? (0.5f) : (float_Array_0[0][0]))))) : (float_Array_0[0][1] == ((float) ((((float_Array_0[0][0]) < (float_Array_0[1][0])) ? (float_Array_0[0][0]) : (float_Array_0[1][0]))))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L101] EXPR (BOOL_unsigned_char_Array_0[0][0] ? ((unsigned_short_int_Array_0[1] <= unsigned_short_int_Array_0[0]) ? (unsigned_long_int_Array_0[1][1] == ((unsigned long int) (((((unsigned_short_int_Array_0[1]) > ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1]))) ? (unsigned_short_int_Array_0[1]) : ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1])))) + (unsigned_long_int_Array_0[1][0] - unsigned_long_int_Array_0[0][0])))) : 1) : (unsigned_long_int_Array_0[1][1] == ((unsigned long int) unsigned_long_int_Array_0[0][0]))) && ((unsigned_long_int_Array_0[0][0] >= unsigned_long_int_Array_0[1][1]) ? (float_Array_0[0][1] == ((float) ((((0.5f) < (float_Array_0[0][0])) ? (0.5f) : (float_Array_0[0][0]))))) : (float_Array_0[0][1] == ((float) ((((float_Array_0[0][0]) < (float_Array_0[1][0])) ? (float_Array_0[0][0]) : (float_Array_0[1][0])))))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L101] EXPR ((BOOL_unsigned_char_Array_0[0][0] ? ((unsigned_short_int_Array_0[1] <= unsigned_short_int_Array_0[0]) ? (unsigned_long_int_Array_0[1][1] == ((unsigned long int) (((((unsigned_short_int_Array_0[1]) > ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1]))) ? (unsigned_short_int_Array_0[1]) : ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1])))) + (unsigned_long_int_Array_0[1][0] - unsigned_long_int_Array_0[0][0])))) : 1) : (unsigned_long_int_Array_0[1][1] == ((unsigned long int) unsigned_long_int_Array_0[0][0]))) && ((unsigned_long_int_Array_0[0][0] >= unsigned_long_int_Array_0[1][1]) ? (float_Array_0[0][1] == ((float) ((((0.5f) < (float_Array_0[0][0])) ? (0.5f) : (float_Array_0[0][0]))))) : (float_Array_0[0][1] == ((float) ((((float_Array_0[0][0]) < (float_Array_0[1][0])) ? (float_Array_0[0][0]) : (float_Array_0[1][0]))))))) && ((float_Array_0[1][0] >= ((((((((128.175f) > (float_Array_0[0][0])) ? (128.175f) : (float_Array_0[0][0])))) < (float_Array_0[0][1])) ? (((((128.175f) > (float_Array_0[0][0])) ? (128.175f) : (float_Array_0[0][0])))) : (float_Array_0[0][1])))) ? (float_Array_0[1][1] == ((float) float_Array_0[1][0])) : ((! (unsigned_long_int_Array_0[0][0] <= unsigned_long_int_Array_0[1][0])) ? (float_Array_0[1][1] == ((float) float_Array_0[0][0])) : 1)) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L101] EXPR ((BOOL_unsigned_char_Array_0[0][0] ? ((unsigned_short_int_Array_0[1] <= unsigned_short_int_Array_0[0]) ? (unsigned_long_int_Array_0[1][1] == ((unsigned long int) (((((unsigned_short_int_Array_0[1]) > ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1]))) ? (unsigned_short_int_Array_0[1]) : ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1])))) + (unsigned_long_int_Array_0[1][0] - unsigned_long_int_Array_0[0][0])))) : 1) : (unsigned_long_int_Array_0[1][1] == ((unsigned long int) unsigned_long_int_Array_0[0][0]))) && ((unsigned_long_int_Array_0[0][0] >= unsigned_long_int_Array_0[1][1]) ? (float_Array_0[0][1] == ((float) ((((0.5f) < (float_Array_0[0][0])) ? (0.5f) : (float_Array_0[0][0]))))) : (float_Array_0[0][1] == ((float) ((((float_Array_0[0][0]) < (float_Array_0[1][0])) ? (float_Array_0[0][0]) : (float_Array_0[1][0]))))))) && ((float_Array_0[1][0] >= ((((((((128.175f) > (float_Array_0[0][0])) ? (128.175f) : (float_Array_0[0][0])))) < (float_Array_0[0][1])) ? (((((128.175f) > (float_Array_0[0][0])) ? (128.175f) : (float_Array_0[0][0])))) : (float_Array_0[0][1])))) ? (float_Array_0[1][1] == ((float) float_Array_0[1][0])) : ((! (unsigned_long_int_Array_0[0][0] <= unsigned_long_int_Array_0[1][0])) ? (float_Array_0[1][1] == ((float) float_Array_0[0][0])) : 1)) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L101] EXPR (((BOOL_unsigned_char_Array_0[0][0] ? ((unsigned_short_int_Array_0[1] <= unsigned_short_int_Array_0[0]) ? (unsigned_long_int_Array_0[1][1] == ((unsigned long int) (((((unsigned_short_int_Array_0[1]) > ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1]))) ? (unsigned_short_int_Array_0[1]) : ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1])))) + (unsigned_long_int_Array_0[1][0] - unsigned_long_int_Array_0[0][0])))) : 1) : (unsigned_long_int_Array_0[1][1] == ((unsigned long int) unsigned_long_int_Array_0[0][0]))) && ((unsigned_long_int_Array_0[0][0] >= unsigned_long_int_Array_0[1][1]) ? (float_Array_0[0][1] == ((float) ((((0.5f) < (float_Array_0[0][0])) ? (0.5f) : (float_Array_0[0][0]))))) : (float_Array_0[0][1] == ((float) ((((float_Array_0[0][0]) < (float_Array_0[1][0])) ? (float_Array_0[0][0]) : (float_Array_0[1][0]))))))) && ((float_Array_0[1][0] >= ((((((((128.175f) > (float_Array_0[0][0])) ? (128.175f) : (float_Array_0[0][0])))) < (float_Array_0[0][1])) ? (((((128.175f) > (float_Array_0[0][0])) ? (128.175f) : (float_Array_0[0][0])))) : (float_Array_0[0][1])))) ? (float_Array_0[1][1] == ((float) float_Array_0[1][0])) : ((! (unsigned_long_int_Array_0[0][0] <= unsigned_long_int_Array_0[1][0])) ? (float_Array_0[1][1] == ((float) float_Array_0[0][0])) : 1))) && ((float_Array_0[0][0] != float_Array_0[1][0]) ? ((BOOL_unsigned_char_Array_0[1][1] || BOOL_unsigned_char_Array_0[1][0]) ? (BOOL_unsigned_char_Array_0[0][0] == ((unsigned char) (BOOL_unsigned_char_Array_0[1][0] || BOOL_unsigned_char_Array_0[0][1]))) : (BOOL_unsigned_char_Array_0[0][0] == ((unsigned char) BOOL_unsigned_char_Array_0[0][1]))) : (BOOL_unsigned_char_Array_0[0][0] == ((unsigned char) BOOL_unsigned_char_Array_0[0][1]))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L101] EXPR (((BOOL_unsigned_char_Array_0[0][0] ? ((unsigned_short_int_Array_0[1] <= unsigned_short_int_Array_0[0]) ? (unsigned_long_int_Array_0[1][1] == ((unsigned long int) (((((unsigned_short_int_Array_0[1]) > ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1]))) ? (unsigned_short_int_Array_0[1]) : ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1])))) + (unsigned_long_int_Array_0[1][0] - unsigned_long_int_Array_0[0][0])))) : 1) : (unsigned_long_int_Array_0[1][1] == ((unsigned long int) unsigned_long_int_Array_0[0][0]))) && ((unsigned_long_int_Array_0[0][0] >= unsigned_long_int_Array_0[1][1]) ? (float_Array_0[0][1] == ((float) ((((0.5f) < (float_Array_0[0][0])) ? (0.5f) : (float_Array_0[0][0]))))) : (float_Array_0[0][1] == ((float) ((((float_Array_0[0][0]) < (float_Array_0[1][0])) ? (float_Array_0[0][0]) : (float_Array_0[1][0]))))))) && ((float_Array_0[1][0] >= ((((((((128.175f) > (float_Array_0[0][0])) ? (128.175f) : (float_Array_0[0][0])))) < (float_Array_0[0][1])) ? (((((128.175f) > (float_Array_0[0][0])) ? (128.175f) : (float_Array_0[0][0])))) : (float_Array_0[0][1])))) ? (float_Array_0[1][1] == ((float) float_Array_0[1][0])) : ((! (unsigned_long_int_Array_0[0][0] <= unsigned_long_int_Array_0[1][0])) ? (float_Array_0[1][1] == ((float) float_Array_0[0][0])) : 1))) && ((float_Array_0[0][0] != float_Array_0[1][0]) ? ((BOOL_unsigned_char_Array_0[1][1] || BOOL_unsigned_char_Array_0[1][0]) ? (BOOL_unsigned_char_Array_0[0][0] == ((unsigned char) (BOOL_unsigned_char_Array_0[1][0] || BOOL_unsigned_char_Array_0[0][1]))) : (BOOL_unsigned_char_Array_0[0][0] == ((unsigned char) BOOL_unsigned_char_Array_0[0][1]))) : (BOOL_unsigned_char_Array_0[0][0] == ((unsigned char) BOOL_unsigned_char_Array_0[0][1]))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L101-L102] return (((BOOL_unsigned_char_Array_0[0][0] ? ((unsigned_short_int_Array_0[1] <= unsigned_short_int_Array_0[0]) ? (unsigned_long_int_Array_0[1][1] == ((unsigned long int) (((((unsigned_short_int_Array_0[1]) > ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1]))) ? (unsigned_short_int_Array_0[1]) : ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1])))) + (unsigned_long_int_Array_0[1][0] - unsigned_long_int_Array_0[0][0])))) : 1) : (unsigned_long_int_Array_0[1][1] == ((unsigned long int) unsigned_long_int_Array_0[0][0]))) && ((unsigned_long_int_Array_0[0][0] >= unsigned_long_int_Array_0[1][1]) ? (float_Array_0[0][1] == ((float) ((((0.5f) < (float_Array_0[0][0])) ? (0.5f) : (float_Array_0[0][0]))))) : (float_Array_0[0][1] == ((float) ((((float_Array_0[0][0]) < (float_Array_0[1][0])) ? (float_Array_0[0][0]) : (float_Array_0[1][0]))))))) && ((float_Array_0[1][0] >= ((((((((128.175f) > (float_Array_0[0][0])) ? (128.175f) : (float_Array_0[0][0])))) < (float_Array_0[0][1])) ? (((((128.175f) > (float_Array_0[0][0])) ? (128.175f) : (float_Array_0[0][0])))) : (float_Array_0[0][1])))) ? (float_Array_0[1][1] == ((float) float_Array_0[1][0])) : ((! (unsigned_long_int_Array_0[0][0] <= unsigned_long_int_Array_0[1][0])) ? (float_Array_0[1][1] == ((float) float_Array_0[0][0])) : 1))) && ((float_Array_0[0][0] != float_Array_0[1][0]) ? ((BOOL_unsigned_char_Array_0[1][1] || BOOL_unsigned_char_Array_0[1][0]) ? (BOOL_unsigned_char_Array_0[0][0] == ((unsigned char) (BOOL_unsigned_char_Array_0[1][0] || BOOL_unsigned_char_Array_0[0][1]))) : (BOOL_unsigned_char_Array_0[0][0] == ((unsigned char) BOOL_unsigned_char_Array_0[0][1]))) : (BOOL_unsigned_char_Array_0[0][0] == ((unsigned char) BOOL_unsigned_char_Array_0[0][1]))) ; [L111] RET, EXPR property() [L111] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L19] reach_error() VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 124 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 82.0s, OverallIterations: 12, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 60.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 13 mSolverCounterUnknown, 2155 SdHoareTripleChecker+Valid, 57.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2146 mSDsluCounter, 14253 SdHoareTripleChecker+Invalid, 56.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11737 mSDsCounter, 189 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3114 IncrementalHoareTripleChecker+Invalid, 3316 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 189 mSolverCounterUnsat, 2516 mSDtfsCounter, 3114 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 859 GetRequests, 743 SyntacticMatches, 7 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=753occurred in iteration=9, InterpolantAutomatonStates: 109, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 11 MinimizatonAttempts, 188 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 18.7s InterpolantComputationTime, 1927 NumberOfCodeBlocks, 1927 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1911 ConstructedInterpolants, 0 QuantifiedInterpolants, 13092 SizeOfPredicates, 6 NumberOfNonLiveVariables, 488 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 13 InterpolantComputations, 10 PerfectInterpolantSequences, 7821/7956 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 19:04:40,304 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-25.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 153786ff23d1f4ad1fa22216334d8f153d923a58dff5067a8f60a9c72819150b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:04:43,053 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:04:43,116 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-08 19:04:43,121 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:04:43,122 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 19:04:43,154 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:04:43,157 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 19:04:43,158 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 19:04:43,158 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 19:04:43,159 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 19:04:43,160 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:04:43,160 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 19:04:43,161 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:04:43,163 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:04:43,164 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 19:04:43,164 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:04:43,165 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:04:43,165 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 19:04:43,166 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 19:04:43,166 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:04:43,166 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:04:43,167 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:04:43,167 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:04:43,168 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 19:04:43,168 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 19:04:43,169 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:04:43,169 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 19:04:43,169 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 19:04:43,170 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:04:43,170 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:04:43,171 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:04:43,171 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 19:04:43,172 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 19:04:43,172 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 19:04:43,172 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:04:43,173 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:04:43,173 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:04:43,174 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:04:43,174 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 19:04:43,174 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 19:04:43,175 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 19:04:43,175 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 19:04:43,189 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 19:04:43,190 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 19:04:43,191 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 153786ff23d1f4ad1fa22216334d8f153d923a58dff5067a8f60a9c72819150b [2024-11-08 19:04:43,601 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:04:43,638 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:04:43,641 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:04:43,643 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:04:43,644 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:04:43,645 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-25.i Unable to find full path for "g++" [2024-11-08 19:04:45,921 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:04:46,229 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:04:46,230 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-25.i [2024-11-08 19:04:46,244 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/data/1465d67cc/8419571f8bf64f82866f8ad69fff618b/FLAGc32bc54b4 [2024-11-08 19:04:46,271 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/data/1465d67cc/8419571f8bf64f82866f8ad69fff618b [2024-11-08 19:04:46,274 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:04:46,276 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:04:46,278 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:04:46,278 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:04:46,289 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:04:46,290 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:04:46" (1/1) ... [2024-11-08 19:04:46,291 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5760e6d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:04:46, skipping insertion in model container [2024-11-08 19:04:46,292 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:04:46" (1/1) ... [2024-11-08 19:04:46,324 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:04:46,539 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-25.i[916,929] [2024-11-08 19:04:46,675 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:04:46,702 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:04:46,725 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-25.i[916,929] [2024-11-08 19:04:46,870 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:04:46,918 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:04:46,919 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:04:46 WrapperNode [2024-11-08 19:04:46,919 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:04:46,921 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:04:46,921 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:04:46,921 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:04:46,930 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:04:46" (1/1) ... [2024-11-08 19:04:46,964 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:04:46" (1/1) ... [2024-11-08 19:04:47,034 INFO L138 Inliner]: procedures = 36, calls = 179, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 557 [2024-11-08 19:04:47,034 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:04:47,035 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:04:47,035 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:04:47,036 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:04:47,051 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:04:46" (1/1) ... [2024-11-08 19:04:47,051 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:04:46" (1/1) ... [2024-11-08 19:04:47,066 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:04:46" (1/1) ... [2024-11-08 19:04:47,118 INFO L175 MemorySlicer]: Split 146 memory accesses to 5 slices as follows [2, 33, 56, 35, 20]. 38 percent of accesses are in the largest equivalence class. The 16 initializations are split as follows [2, 4, 4, 4, 2]. The 19 writes are split as follows [0, 6, 6, 5, 2]. [2024-11-08 19:04:47,119 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:04:46" (1/1) ... [2024-11-08 19:04:47,119 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:04:46" (1/1) ... [2024-11-08 19:04:47,180 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:04:46" (1/1) ... [2024-11-08 19:04:47,193 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:04:46" (1/1) ... [2024-11-08 19:04:47,202 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:04:46" (1/1) ... [2024-11-08 19:04:47,208 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:04:46" (1/1) ... [2024-11-08 19:04:47,216 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:04:47,217 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:04:47,217 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:04:47,218 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:04:47,219 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:04:46" (1/1) ... [2024-11-08 19:04:47,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:04:47,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:04:47,268 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 19:04:47,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 19:04:47,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 19:04:47,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-08 19:04:47,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-08 19:04:47,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-08 19:04:47,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-11-08 19:04:47,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2024-11-08 19:04:47,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#0 [2024-11-08 19:04:47,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#1 [2024-11-08 19:04:47,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#2 [2024-11-08 19:04:47,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#3 [2024-11-08 19:04:47,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#4 [2024-11-08 19:04:47,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 19:04:47,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-08 19:04:47,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-08 19:04:47,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-08 19:04:47,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-08 19:04:47,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-08 19:04:47,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-08 19:04:47,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-11-08 19:04:47,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-11-08 19:04:47,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2024-11-08 19:04:47,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-08 19:04:47,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-08 19:04:47,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-08 19:04:47,319 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-08 19:04:47,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-11-08 19:04:47,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-08 19:04:47,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-08 19:04:47,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-08 19:04:47,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-08 19:04:47,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-08 19:04:47,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2024-11-08 19:04:47,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2024-11-08 19:04:47,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#2 [2024-11-08 19:04:47,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#3 [2024-11-08 19:04:47,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#4 [2024-11-08 19:04:47,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-08 19:04:47,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-08 19:04:47,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-08 19:04:47,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-08 19:04:47,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-11-08 19:04:47,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2024-11-08 19:04:47,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2024-11-08 19:04:47,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2024-11-08 19:04:47,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2024-11-08 19:04:47,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2024-11-08 19:04:47,327 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 19:04:47,328 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 19:04:47,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:04:47,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:04:47,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-08 19:04:47,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-08 19:04:47,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-11-08 19:04:47,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2024-11-08 19:04:47,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2024-11-08 19:04:47,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2024-11-08 19:04:47,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2024-11-08 19:04:47,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#2 [2024-11-08 19:04:47,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#3 [2024-11-08 19:04:47,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#4 [2024-11-08 19:04:47,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-08 19:04:47,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-08 19:04:47,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-08 19:04:47,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-08 19:04:47,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-08 19:04:47,580 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:04:47,582 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:04:48,509 INFO L? ?]: Removed 150 outVars from TransFormulas that were not future-live. [2024-11-08 19:04:48,509 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:04:48,533 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:04:48,535 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 19:04:48,536 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:04:48 BoogieIcfgContainer [2024-11-08 19:04:48,536 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:04:48,539 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 19:04:48,539 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 19:04:48,543 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 19:04:48,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 07:04:46" (1/3) ... [2024-11-08 19:04:48,545 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66147217 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:04:48, skipping insertion in model container [2024-11-08 19:04:48,545 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:04:46" (2/3) ... [2024-11-08 19:04:48,547 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66147217 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:04:48, skipping insertion in model container [2024-11-08 19:04:48,547 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:04:48" (3/3) ... [2024-11-08 19:04:48,549 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-25.i [2024-11-08 19:04:48,572 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 19:04:48,572 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 19:04:48,668 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 19:04:48,675 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6142a28f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 19:04:48,676 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 19:04:48,682 INFO L276 IsEmpty]: Start isEmpty. Operand has 124 states, 103 states have (on average 1.4271844660194175) internal successors, (147), 104 states have internal predecessors, (147), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-08 19:04:48,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-08 19:04:48,702 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:04:48,703 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:04:48,704 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:04:48,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:04:48,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1395042437, now seen corresponding path program 1 times [2024-11-08 19:04:48,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:04:48,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [242378267] [2024-11-08 19:04:48,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:04:48,739 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:04:48,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:04:48,743 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:04:48,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-08 19:04:49,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:04:49,355 INFO L255 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 19:04:49,366 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:04:49,412 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2024-11-08 19:04:49,412 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:04:49,413 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:04:49,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [242378267] [2024-11-08 19:04:49,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [242378267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:04:49,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:04:49,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 19:04:49,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946009442] [2024-11-08 19:04:49,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:04:49,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 19:04:49,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:04:49,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 19:04:49,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 19:04:49,469 INFO L87 Difference]: Start difference. First operand has 124 states, 103 states have (on average 1.4271844660194175) internal successors, (147), 104 states have internal predecessors, (147), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 19:04:49,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:04:49,513 INFO L93 Difference]: Finished difference Result 241 states and 378 transitions. [2024-11-08 19:04:49,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 19:04:49,516 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 144 [2024-11-08 19:04:49,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:04:49,523 INFO L225 Difference]: With dead ends: 241 [2024-11-08 19:04:49,524 INFO L226 Difference]: Without dead ends: 120 [2024-11-08 19:04:49,528 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 19:04:49,532 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:04:49,533 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:04:49,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-08 19:04:49,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-11-08 19:04:49,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 100 states have (on average 1.4) internal successors, (140), 100 states have internal predecessors, (140), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-08 19:04:49,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 176 transitions. [2024-11-08 19:04:49,613 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 176 transitions. Word has length 144 [2024-11-08 19:04:49,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:04:49,614 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 176 transitions. [2024-11-08 19:04:49,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 19:04:49,615 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 176 transitions. [2024-11-08 19:04:49,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-08 19:04:49,623 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:04:49,623 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:04:49,631 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-08 19:04:49,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:04:49,828 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:04:49,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:04:49,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1954794203, now seen corresponding path program 1 times [2024-11-08 19:04:49,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:04:49,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1252630682] [2024-11-08 19:04:49,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:04:49,831 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:04:49,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:04:49,833 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:04:49,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-08 19:04:50,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:04:50,291 INFO L255 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 19:04:50,305 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:04:51,939 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:04:51,941 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 97 treesize of output 37 [2024-11-08 19:04:52,051 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 308 proven. 0 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2024-11-08 19:04:52,051 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:04:52,052 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:04:52,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1252630682] [2024-11-08 19:04:52,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1252630682] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:04:52,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:04:52,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 19:04:52,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492077991] [2024-11-08 19:04:52,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:04:52,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 19:04:52,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:04:52,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 19:04:52,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-08 19:04:52,057 INFO L87 Difference]: Start difference. First operand 120 states and 176 transitions. Second operand has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 8 states have internal predecessors, (60), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 19:04:54,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:04:54,694 INFO L93 Difference]: Finished difference Result 428 states and 628 transitions. [2024-11-08 19:04:54,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 19:04:54,698 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 8 states have internal predecessors, (60), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 144 [2024-11-08 19:04:54,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:04:54,702 INFO L225 Difference]: With dead ends: 428 [2024-11-08 19:04:54,702 INFO L226 Difference]: Without dead ends: 311 [2024-11-08 19:04:54,703 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:04:54,705 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 464 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-08 19:04:54,705 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [464 Valid, 766 Invalid, 650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-08 19:04:54,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2024-11-08 19:04:54,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 305. [2024-11-08 19:04:54,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 259 states have (on average 1.4131274131274132) internal successors, (366), 261 states have internal predecessors, (366), 42 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-08 19:04:54,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 450 transitions. [2024-11-08 19:04:54,751 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 450 transitions. Word has length 144 [2024-11-08 19:04:54,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:04:54,752 INFO L471 AbstractCegarLoop]: Abstraction has 305 states and 450 transitions. [2024-11-08 19:04:54,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 8 states have internal predecessors, (60), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 19:04:54,753 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 450 transitions. [2024-11-08 19:04:54,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-08 19:04:54,757 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:04:54,757 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:04:54,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-08 19:04:54,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:04:54,958 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:04:54,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:04:54,959 INFO L85 PathProgramCache]: Analyzing trace with hash 265850461, now seen corresponding path program 1 times [2024-11-08 19:04:54,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:04:54,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [479673237] [2024-11-08 19:04:54,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:04:54,960 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:04:54,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:04:54,962 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:04:54,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-08 19:04:55,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:04:55,399 INFO L255 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 19:04:55,407 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:04:55,430 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-08 19:04:55,854 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 34 [2024-11-08 19:04:57,802 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:04:57,802 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 46 [2024-11-08 19:04:57,920 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:04:57,920 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 66 treesize of output 28 [2024-11-08 19:04:57,983 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 160 proven. 84 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2024-11-08 19:04:57,983 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:04:58,675 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 12 proven. 84 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2024-11-08 19:04:58,675 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:04:58,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [479673237] [2024-11-08 19:04:58,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [479673237] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:04:58,676 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 19:04:58,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9] total 21 [2024-11-08 19:04:58,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5944405] [2024-11-08 19:04:58,677 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 19:04:58,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-08 19:04:58,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:04:58,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-08 19:04:58,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2024-11-08 19:04:58,684 INFO L87 Difference]: Start difference. First operand 305 states and 450 transitions. Second operand has 21 states, 17 states have (on average 5.647058823529412) internal successors, (96), 18 states have internal predecessors, (96), 7 states have call successors, (34), 4 states have call predecessors, (34), 5 states have return successors, (34), 5 states have call predecessors, (34), 7 states have call successors, (34) [2024-11-08 19:05:01,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:05:01,284 INFO L93 Difference]: Finished difference Result 903 states and 1291 transitions. [2024-11-08 19:05:01,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-08 19:05:01,286 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 17 states have (on average 5.647058823529412) internal successors, (96), 18 states have internal predecessors, (96), 7 states have call successors, (34), 4 states have call predecessors, (34), 5 states have return successors, (34), 5 states have call predecessors, (34), 7 states have call successors, (34) Word has length 144 [2024-11-08 19:05:01,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:05:01,295 INFO L225 Difference]: With dead ends: 903 [2024-11-08 19:05:01,295 INFO L226 Difference]: Without dead ends: 601 [2024-11-08 19:05:01,299 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=460, Invalid=1432, Unknown=0, NotChecked=0, Total=1892 [2024-11-08 19:05:01,304 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 1123 mSDsluCounter, 858 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1129 SdHoareTripleChecker+Valid, 992 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-08 19:05:01,305 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1129 Valid, 992 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-08 19:05:01,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2024-11-08 19:05:01,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 569. [2024-11-08 19:05:01,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 472 states have (on average 1.36864406779661) internal successors, (646), 477 states have internal predecessors, (646), 78 states have call successors, (78), 18 states have call predecessors, (78), 18 states have return successors, (78), 73 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-08 19:05:01,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 802 transitions. [2024-11-08 19:05:01,430 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 802 transitions. Word has length 144 [2024-11-08 19:05:01,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:05:01,432 INFO L471 AbstractCegarLoop]: Abstraction has 569 states and 802 transitions. [2024-11-08 19:05:01,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 17 states have (on average 5.647058823529412) internal successors, (96), 18 states have internal predecessors, (96), 7 states have call successors, (34), 4 states have call predecessors, (34), 5 states have return successors, (34), 5 states have call predecessors, (34), 7 states have call successors, (34) [2024-11-08 19:05:01,433 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 802 transitions. [2024-11-08 19:05:01,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-08 19:05:01,437 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:05:01,437 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:05:01,452 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-08 19:05:01,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:05:01,638 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:05:01,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:05:01,639 INFO L85 PathProgramCache]: Analyzing trace with hash 2008882059, now seen corresponding path program 1 times [2024-11-08 19:05:01,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:05:01,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1259054349] [2024-11-08 19:05:01,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:01,640 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:05:01,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:05:01,642 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:05:01,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-08 19:05:01,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:01,992 INFO L255 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 19:05:01,998 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:05:02,051 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2024-11-08 19:05:02,080 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:05:02,081 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:05:02,081 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:05:02,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1259054349] [2024-11-08 19:05:02,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1259054349] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:05:02,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:05:02,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:05:02,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997858499] [2024-11-08 19:05:02,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:05:02,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:05:02,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:05:02,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:05:02,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:05:02,084 INFO L87 Difference]: Start difference. First operand 569 states and 802 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:05:02,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:05:02,584 INFO L93 Difference]: Finished difference Result 1369 states and 1936 transitions. [2024-11-08 19:05:02,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:05:02,585 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-11-08 19:05:02,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:05:02,591 INFO L225 Difference]: With dead ends: 1369 [2024-11-08 19:05:02,591 INFO L226 Difference]: Without dead ends: 803 [2024-11-08 19:05:02,593 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:05:02,595 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 155 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 19:05:02,595 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 562 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 19:05:02,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 803 states. [2024-11-08 19:05:02,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 803 to 601. [2024-11-08 19:05:02,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 504 states have (on average 1.371031746031746) internal successors, (691), 509 states have internal predecessors, (691), 78 states have call successors, (78), 18 states have call predecessors, (78), 18 states have return successors, (78), 73 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-08 19:05:02,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 847 transitions. [2024-11-08 19:05:02,698 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 847 transitions. Word has length 145 [2024-11-08 19:05:02,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:05:02,699 INFO L471 AbstractCegarLoop]: Abstraction has 601 states and 847 transitions. [2024-11-08 19:05:02,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:05:02,700 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 847 transitions. [2024-11-08 19:05:02,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-08 19:05:02,705 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:05:02,705 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:05:02,717 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-11-08 19:05:02,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:05:02,906 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:05:02,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:05:02,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1730436547, now seen corresponding path program 1 times [2024-11-08 19:05:02,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:05:02,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1603257490] [2024-11-08 19:05:02,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:02,908 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:05:02,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:05:02,912 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:05:02,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-08 19:05:03,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:03,403 INFO L255 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 19:05:03,410 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:05:03,459 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:05:03,459 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:05:03,459 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:05:03,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1603257490] [2024-11-08 19:05:03,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1603257490] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:05:03,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:05:03,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:05:03,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263819797] [2024-11-08 19:05:03,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:05:03,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:05:03,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:05:03,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:05:03,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:05:03,464 INFO L87 Difference]: Start difference. First operand 601 states and 847 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:05:03,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:05:03,600 INFO L93 Difference]: Finished difference Result 1214 states and 1711 transitions. [2024-11-08 19:05:03,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:05:03,601 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 147 [2024-11-08 19:05:03,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:05:03,607 INFO L225 Difference]: With dead ends: 1214 [2024-11-08 19:05:03,607 INFO L226 Difference]: Without dead ends: 616 [2024-11-08 19:05:03,609 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:05:03,611 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 0 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:05:03,612 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 677 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:05:03,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2024-11-08 19:05:03,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 616. [2024-11-08 19:05:03,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 519 states have (on average 1.3603082851637764) internal successors, (706), 524 states have internal predecessors, (706), 78 states have call successors, (78), 18 states have call predecessors, (78), 18 states have return successors, (78), 73 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-08 19:05:03,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 862 transitions. [2024-11-08 19:05:03,693 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 862 transitions. Word has length 147 [2024-11-08 19:05:03,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:05:03,696 INFO L471 AbstractCegarLoop]: Abstraction has 616 states and 862 transitions. [2024-11-08 19:05:03,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:05:03,696 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 862 transitions. [2024-11-08 19:05:03,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-08 19:05:03,700 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:05:03,700 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:05:03,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2024-11-08 19:05:03,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:05:03,905 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:05:03,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:05:03,905 INFO L85 PathProgramCache]: Analyzing trace with hash 912142374, now seen corresponding path program 1 times [2024-11-08 19:05:03,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:05:03,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1544686952] [2024-11-08 19:05:03,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:03,910 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:05:03,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:05:03,913 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:05:03,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-08 19:05:04,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:04,310 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 19:05:04,313 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:05:04,326 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-11-08 19:05:04,336 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-08 19:05:04,345 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:05:04,345 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:05:04,345 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:05:04,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1544686952] [2024-11-08 19:05:04,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1544686952] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:05:04,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:05:04,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:05:04,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522921604] [2024-11-08 19:05:04,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:05:04,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:05:04,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:05:04,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:05:04,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:05:04,348 INFO L87 Difference]: Start difference. First operand 616 states and 862 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:05:04,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:05:04,646 INFO L93 Difference]: Finished difference Result 1573 states and 2201 transitions. [2024-11-08 19:05:04,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 19:05:04,647 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 148 [2024-11-08 19:05:04,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:05:04,656 INFO L225 Difference]: With dead ends: 1573 [2024-11-08 19:05:04,656 INFO L226 Difference]: Without dead ends: 960 [2024-11-08 19:05:04,658 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:05:04,659 INFO L432 NwaCegarLoop]: 240 mSDtfsCounter, 167 mSDsluCounter, 624 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 864 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:05:04,659 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 864 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:05:04,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2024-11-08 19:05:04,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 712. [2024-11-08 19:05:04,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 581 states have (on average 1.333907056798623) internal successors, (775), 588 states have internal predecessors, (775), 107 states have call successors, (107), 23 states have call predecessors, (107), 23 states have return successors, (107), 100 states have call predecessors, (107), 107 states have call successors, (107) [2024-11-08 19:05:04,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 989 transitions. [2024-11-08 19:05:04,778 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 989 transitions. Word has length 148 [2024-11-08 19:05:04,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:05:04,779 INFO L471 AbstractCegarLoop]: Abstraction has 712 states and 989 transitions. [2024-11-08 19:05:04,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:05:04,780 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 989 transitions. [2024-11-08 19:05:04,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-08 19:05:04,782 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:05:04,783 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:05:04,794 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-08 19:05:04,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:05:04,984 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:05:04,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:05:04,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1052690984, now seen corresponding path program 1 times [2024-11-08 19:05:04,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:05:04,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1212118096] [2024-11-08 19:05:04,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:04,986 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:05:04,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:05:04,989 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:05:04,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-08 19:05:05,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:05,420 INFO L255 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-08 19:05:05,426 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:05:05,440 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-08 19:05:05,796 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 34 [2024-11-08 19:05:07,660 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:05:07,662 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 35 [2024-11-08 19:05:07,779 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:05:07,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 17 [2024-11-08 19:05:07,812 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 160 proven. 84 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2024-11-08 19:05:07,812 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:05:08,379 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 12 proven. 84 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2024-11-08 19:05:08,379 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:05:08,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1212118096] [2024-11-08 19:05:08,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1212118096] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:05:08,380 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 19:05:08,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10] total 23 [2024-11-08 19:05:08,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267696982] [2024-11-08 19:05:08,381 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 19:05:08,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-08 19:05:08,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:05:08,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-08 19:05:08,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2024-11-08 19:05:08,383 INFO L87 Difference]: Start difference. First operand 712 states and 989 transitions. Second operand has 23 states, 19 states have (on average 5.473684210526316) internal successors, (104), 20 states have internal predecessors, (104), 7 states have call successors, (34), 4 states have call predecessors, (34), 5 states have return successors, (34), 5 states have call predecessors, (34), 7 states have call successors, (34) [2024-11-08 19:05:10,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:05:10,556 INFO L93 Difference]: Finished difference Result 1333 states and 1836 transitions. [2024-11-08 19:05:10,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-08 19:05:10,557 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 19 states have (on average 5.473684210526316) internal successors, (104), 20 states have internal predecessors, (104), 7 states have call successors, (34), 4 states have call predecessors, (34), 5 states have return successors, (34), 5 states have call predecessors, (34), 7 states have call successors, (34) Word has length 148 [2024-11-08 19:05:10,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:05:10,562 INFO L225 Difference]: With dead ends: 1333 [2024-11-08 19:05:10,562 INFO L226 Difference]: Without dead ends: 714 [2024-11-08 19:05:10,564 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=415, Invalid=1307, Unknown=0, NotChecked=0, Total=1722 [2024-11-08 19:05:10,566 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 440 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 1131 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:05:10,566 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [442 Valid, 1131 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 19:05:10,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2024-11-08 19:05:10,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 440. [2024-11-08 19:05:10,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 351 states have (on average 1.3076923076923077) internal successors, (459), 355 states have internal predecessors, (459), 71 states have call successors, (71), 17 states have call predecessors, (71), 17 states have return successors, (71), 67 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-08 19:05:10,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 601 transitions. [2024-11-08 19:05:10,681 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 601 transitions. Word has length 148 [2024-11-08 19:05:10,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:05:10,682 INFO L471 AbstractCegarLoop]: Abstraction has 440 states and 601 transitions. [2024-11-08 19:05:10,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 19 states have (on average 5.473684210526316) internal successors, (104), 20 states have internal predecessors, (104), 7 states have call successors, (34), 4 states have call predecessors, (34), 5 states have return successors, (34), 5 states have call predecessors, (34), 7 states have call successors, (34) [2024-11-08 19:05:10,683 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 601 transitions. [2024-11-08 19:05:10,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-08 19:05:10,685 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:05:10,686 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:05:10,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-11-08 19:05:10,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:05:10,887 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:05:10,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:05:10,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1616647970, now seen corresponding path program 1 times [2024-11-08 19:05:10,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:05:10,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1097050190] [2024-11-08 19:05:10,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:10,889 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:05:10,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:05:10,893 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:05:10,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-08 19:05:11,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:11,290 INFO L255 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 19:05:11,292 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:05:11,387 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:05:11,387 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 17 [2024-11-08 19:05:11,416 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:05:11,416 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:05:11,416 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:05:11,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1097050190] [2024-11-08 19:05:11,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1097050190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:05:11,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:05:11,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 19:05:11,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967000537] [2024-11-08 19:05:11,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:05:11,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:05:11,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:05:11,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:05:11,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:05:11,419 INFO L87 Difference]: Start difference. First operand 440 states and 601 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:05:11,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:05:11,821 INFO L93 Difference]: Finished difference Result 1076 states and 1469 transitions. [2024-11-08 19:05:11,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 19:05:11,822 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 149 [2024-11-08 19:05:11,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:05:11,827 INFO L225 Difference]: With dead ends: 1076 [2024-11-08 19:05:11,828 INFO L226 Difference]: Without dead ends: 729 [2024-11-08 19:05:11,829 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:05:11,831 INFO L432 NwaCegarLoop]: 268 mSDtfsCounter, 126 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 916 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:05:11,831 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 916 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:05:11,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2024-11-08 19:05:11,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 725. [2024-11-08 19:05:11,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 725 states, 590 states have (on average 1.3152542372881355) internal successors, (776), 598 states have internal predecessors, (776), 105 states have call successors, (105), 29 states have call predecessors, (105), 29 states have return successors, (105), 97 states have call predecessors, (105), 105 states have call successors, (105) [2024-11-08 19:05:11,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 986 transitions. [2024-11-08 19:05:11,969 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 986 transitions. Word has length 149 [2024-11-08 19:05:11,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:05:11,970 INFO L471 AbstractCegarLoop]: Abstraction has 725 states and 986 transitions. [2024-11-08 19:05:11,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:05:11,970 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 986 transitions. [2024-11-08 19:05:11,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-08 19:05:11,974 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:05:11,975 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:05:11,987 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-11-08 19:05:12,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:05:12,176 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:05:12,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:05:12,176 INFO L85 PathProgramCache]: Analyzing trace with hash 314123815, now seen corresponding path program 1 times [2024-11-08 19:05:12,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:05:12,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1492006983] [2024-11-08 19:05:12,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:12,178 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:05:12,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:05:12,181 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:05:12,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-08 19:05:12,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:12,642 INFO L255 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 19:05:12,646 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:05:12,856 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2024-11-08 19:05:12,865 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:05:12,866 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 16 [2024-11-08 19:05:12,924 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 251 proven. 12 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2024-11-08 19:05:12,924 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:05:13,088 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:05:13,088 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 25 [2024-11-08 19:05:13,206 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:05:13,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1492006983] [2024-11-08 19:05:13,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1492006983] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:05:13,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1249648387] [2024-11-08 19:05:13,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:13,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:05:13,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:05:13,208 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:05:13,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-08 19:05:13,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:13,593 INFO L255 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-08 19:05:13,600 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:05:13,841 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 251 proven. 12 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2024-11-08 19:05:13,841 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:05:14,551 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:05:14,552 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 25 [2024-11-08 19:05:14,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1249648387] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:05:14,677 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 19:05:14,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2024-11-08 19:05:14,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085355014] [2024-11-08 19:05:14,677 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 19:05:14,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 19:05:14,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:05:14,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 19:05:14,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2024-11-08 19:05:14,679 INFO L87 Difference]: Start difference. First operand 725 states and 986 transitions. Second operand has 10 states, 9 states have (on average 8.0) internal successors, (72), 10 states have internal predecessors, (72), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-08 19:05:15,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:05:15,611 INFO L93 Difference]: Finished difference Result 1423 states and 1908 transitions. [2024-11-08 19:05:15,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 19:05:15,612 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.0) internal successors, (72), 10 states have internal predecessors, (72), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 151 [2024-11-08 19:05:15,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:05:15,617 INFO L225 Difference]: With dead ends: 1423 [2024-11-08 19:05:15,617 INFO L226 Difference]: Without dead ends: 791 [2024-11-08 19:05:15,619 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 350 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=125, Invalid=475, Unknown=0, NotChecked=0, Total=600 [2024-11-08 19:05:15,619 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 132 mSDsluCounter, 701 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 837 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 19:05:15,620 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 837 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 19:05:15,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2024-11-08 19:05:15,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 733. [2024-11-08 19:05:15,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 733 states, 598 states have (on average 1.306020066889632) internal successors, (781), 606 states have internal predecessors, (781), 101 states have call successors, (101), 33 states have call predecessors, (101), 33 states have return successors, (101), 93 states have call predecessors, (101), 101 states have call successors, (101) [2024-11-08 19:05:15,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 983 transitions. [2024-11-08 19:05:15,743 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 983 transitions. Word has length 151 [2024-11-08 19:05:15,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:05:15,743 INFO L471 AbstractCegarLoop]: Abstraction has 733 states and 983 transitions. [2024-11-08 19:05:15,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.0) internal successors, (72), 10 states have internal predecessors, (72), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-08 19:05:15,744 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 983 transitions. [2024-11-08 19:05:15,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-08 19:05:15,746 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:05:15,746 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:05:15,757 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-11-08 19:05:15,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-08 19:05:16,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:05:16,151 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:05:16,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:05:16,152 INFO L85 PathProgramCache]: Analyzing trace with hash -2057615447, now seen corresponding path program 1 times [2024-11-08 19:05:16,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:05:16,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1523074597] [2024-11-08 19:05:16,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:16,153 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:05:16,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:05:16,154 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:05:16,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-11-08 19:05:16,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:16,597 INFO L255 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-08 19:05:16,603 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:05:16,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 19:05:16,668 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-11-08 19:05:16,801 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 12 [2024-11-08 19:05:17,189 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-08 19:05:17,377 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:05:17,377 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 20 [2024-11-08 19:05:17,391 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2024-11-08 19:05:17,443 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 251 proven. 12 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2024-11-08 19:05:17,444 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:05:17,769 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:05:17,770 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:05:17,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1523074597] [2024-11-08 19:05:17,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1523074597] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:05:17,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:05:17,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-11-08 19:05:17,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659591262] [2024-11-08 19:05:17,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:05:17,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:05:17,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:05:17,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:05:17,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-11-08 19:05:17,773 INFO L87 Difference]: Start difference. First operand 733 states and 983 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:05:18,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:05:18,247 INFO L93 Difference]: Finished difference Result 1385 states and 1851 transitions. [2024-11-08 19:05:18,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:05:18,249 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 151 [2024-11-08 19:05:18,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:05:18,253 INFO L225 Difference]: With dead ends: 1385 [2024-11-08 19:05:18,254 INFO L226 Difference]: Without dead ends: 753 [2024-11-08 19:05:18,255 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-11-08 19:05:18,256 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 222 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:05:18,257 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 527 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 19:05:18,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2024-11-08 19:05:18,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 483. [2024-11-08 19:05:18,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 402 states have (on average 1.3109452736318408) internal successors, (527), 406 states have internal predecessors, (527), 59 states have call successors, (59), 21 states have call predecessors, (59), 21 states have return successors, (59), 55 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-08 19:05:18,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 645 transitions. [2024-11-08 19:05:18,344 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 645 transitions. Word has length 151 [2024-11-08 19:05:18,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:05:18,345 INFO L471 AbstractCegarLoop]: Abstraction has 483 states and 645 transitions. [2024-11-08 19:05:18,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:05:18,345 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 645 transitions. [2024-11-08 19:05:18,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-08 19:05:18,347 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:05:18,348 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:05:18,358 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2024-11-08 19:05:18,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:05:18,549 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:05:18,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:05:18,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1650545835, now seen corresponding path program 1 times [2024-11-08 19:05:18,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:05:18,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2056452871] [2024-11-08 19:05:18,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:18,551 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:05:18,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:05:18,554 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:05:18,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-11-08 19:05:21,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:21,491 INFO L255 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-08 19:05:21,499 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:05:21,514 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 19:05:21,568 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2024-11-08 19:05:21,866 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:05:21,866 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 26 [2024-11-08 19:05:22,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-08 19:05:22,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-08 19:05:23,169 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:05:23,169 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 75 treesize of output 58 [2024-11-08 19:06:27,746 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:06:27,747 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 136 treesize of output 114 [2024-11-08 19:06:35,715 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 393 proven. 57 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-08 19:06:35,716 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:06:41,066 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:06:41,066 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:06:41,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2056452871] [2024-11-08 19:06:41,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2056452871] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:06:41,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:06:41,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [28] total 36 [2024-11-08 19:06:41,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078888689] [2024-11-08 19:06:41,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:06:41,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 19:06:41,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:06:41,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 19:06:41,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=1099, Unknown=8, NotChecked=0, Total=1260 [2024-11-08 19:06:41,070 INFO L87 Difference]: Start difference. First operand 483 states and 645 transitions. Second operand has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:06:44,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:06:44,230 INFO L93 Difference]: Finished difference Result 1381 states and 1833 transitions. [2024-11-08 19:06:44,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 19:06:44,231 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 151 [2024-11-08 19:06:44,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:06:44,235 INFO L225 Difference]: With dead ends: 1381 [2024-11-08 19:06:44,236 INFO L226 Difference]: Without dead ends: 967 [2024-11-08 19:06:44,237 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 520 ImplicationChecksByTransitivity, 77.7s TimeCoverageRelationStatistics Valid=215, Invalid=1757, Unknown=8, NotChecked=0, Total=1980 [2024-11-08 19:06:44,238 INFO L432 NwaCegarLoop]: 272 mSDtfsCounter, 230 mSDsluCounter, 1902 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 2174 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-08 19:06:44,239 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 2174 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-08 19:06:44,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states. [2024-11-08 19:06:44,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 740. [2024-11-08 19:06:44,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 740 states, 623 states have (on average 1.317817014446228) internal successors, (821), 631 states have internal predecessors, (821), 81 states have call successors, (81), 35 states have call predecessors, (81), 35 states have return successors, (81), 73 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-08 19:06:44,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 983 transitions. [2024-11-08 19:06:44,401 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 983 transitions. Word has length 151 [2024-11-08 19:06:44,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:06:44,402 INFO L471 AbstractCegarLoop]: Abstraction has 740 states and 983 transitions. [2024-11-08 19:06:44,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:06:44,402 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 983 transitions. [2024-11-08 19:06:44,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-08 19:06:44,405 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:06:44,405 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:06:44,418 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-11-08 19:06:44,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:06:44,607 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:06:44,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:06:44,608 INFO L85 PathProgramCache]: Analyzing trace with hash 8264416, now seen corresponding path program 1 times [2024-11-08 19:06:44,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:06:44,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2118128121] [2024-11-08 19:06:44,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:06:44,609 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:06:44,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:06:44,612 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:06:44,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-11-08 19:06:45,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:06:45,059 INFO L255 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 19:06:45,064 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:06:45,930 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:06:45,930 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 124 treesize of output 46 [2024-11-08 19:06:46,002 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 308 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2024-11-08 19:06:46,003 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:06:46,401 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:06:46,401 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:06:46,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2118128121] [2024-11-08 19:06:46,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2118128121] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:06:46,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:06:46,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 12 [2024-11-08 19:06:46,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162909068] [2024-11-08 19:06:46,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:06:46,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:06:46,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:06:46,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:06:46,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-08 19:06:46,404 INFO L87 Difference]: Start difference. First operand 740 states and 983 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:06:47,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:06:47,456 INFO L93 Difference]: Finished difference Result 1594 states and 2120 transitions. [2024-11-08 19:06:47,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:06:47,458 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 151 [2024-11-08 19:06:47,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:06:47,462 INFO L225 Difference]: With dead ends: 1594 [2024-11-08 19:06:47,462 INFO L226 Difference]: Without dead ends: 931 [2024-11-08 19:06:47,464 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-08 19:06:47,465 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 182 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 19:06:47,465 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 409 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 19:06:47,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2024-11-08 19:06:47,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 925. [2024-11-08 19:06:47,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 925 states, 787 states have (on average 1.3163913595933927) internal successors, (1036), 797 states have internal predecessors, (1036), 93 states have call successors, (93), 44 states have call predecessors, (93), 44 states have return successors, (93), 83 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-08 19:06:47,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1222 transitions. [2024-11-08 19:06:47,653 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1222 transitions. Word has length 151 [2024-11-08 19:06:47,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:06:47,656 INFO L471 AbstractCegarLoop]: Abstraction has 925 states and 1222 transitions. [2024-11-08 19:06:47,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:06:47,656 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1222 transitions. [2024-11-08 19:06:47,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-08 19:06:47,659 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:06:47,660 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:06:47,670 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2024-11-08 19:06:47,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:06:47,861 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:06:47,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:06:47,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1797173918, now seen corresponding path program 1 times [2024-11-08 19:06:47,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:06:47,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [922859404] [2024-11-08 19:06:47,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:06:47,862 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:06:47,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:06:47,863 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:06:47,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-11-08 19:06:48,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:06:48,614 INFO L255 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-08 19:06:48,626 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:06:48,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 19:06:48,707 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2024-11-08 19:06:49,081 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:06:49,082 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 26 [2024-11-08 19:06:49,506 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-11-08 19:06:49,844 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2024-11-08 19:06:50,799 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:06:50,800 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 75 treesize of output 58 [2024-11-08 19:06:52,486 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:06:52,486 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 72 treesize of output 54 [2024-11-08 19:06:52,931 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 393 proven. 57 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-08 19:06:52,931 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:06:56,930 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:06:56,930 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:06:56,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [922859404] [2024-11-08 19:06:56,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [922859404] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:06:56,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:06:56,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [29] total 37 [2024-11-08 19:06:56,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631849303] [2024-11-08 19:06:56,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:06:56,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 19:06:56,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:06:56,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 19:06:56,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=1159, Unknown=0, NotChecked=0, Total=1332 [2024-11-08 19:06:56,933 INFO L87 Difference]: Start difference. First operand 925 states and 1222 transitions. Second operand has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:06:59,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:06:59,795 INFO L93 Difference]: Finished difference Result 2061 states and 2719 transitions. [2024-11-08 19:06:59,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 19:06:59,796 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 151 [2024-11-08 19:06:59,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:06:59,800 INFO L225 Difference]: With dead ends: 2061 [2024-11-08 19:06:59,801 INFO L226 Difference]: Without dead ends: 1217 [2024-11-08 19:06:59,803 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 542 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=235, Invalid=1835, Unknown=0, NotChecked=0, Total=2070 [2024-11-08 19:06:59,803 INFO L432 NwaCegarLoop]: 376 mSDtfsCounter, 227 mSDsluCounter, 2662 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 3038 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-08 19:06:59,803 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 3038 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-08 19:06:59,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1217 states. [2024-11-08 19:06:59,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1217 to 861. [2024-11-08 19:06:59,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 723 states have (on average 1.30567081604426) internal successors, (944), 733 states have internal predecessors, (944), 93 states have call successors, (93), 44 states have call predecessors, (93), 44 states have return successors, (93), 83 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-08 19:06:59,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1130 transitions. [2024-11-08 19:06:59,971 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1130 transitions. Word has length 151 [2024-11-08 19:06:59,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:06:59,972 INFO L471 AbstractCegarLoop]: Abstraction has 861 states and 1130 transitions. [2024-11-08 19:06:59,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:06:59,972 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1130 transitions. [2024-11-08 19:06:59,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-08 19:06:59,975 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:06:59,975 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:06:59,985 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2024-11-08 19:07:00,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:07:00,176 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:07:00,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:07:00,177 INFO L85 PathProgramCache]: Analyzing trace with hash 981256788, now seen corresponding path program 1 times [2024-11-08 19:07:00,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:07:00,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [349229000] [2024-11-08 19:07:00,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:07:00,178 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:07:00,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:07:00,181 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:07:00,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-11-08 19:07:00,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:00,601 INFO L255 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-08 19:07:00,606 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:07:00,691 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 19:07:01,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 32 [2024-11-08 19:07:02,192 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 32 [2024-11-08 19:07:02,276 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 32 [2024-11-08 19:07:02,392 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 34 [2024-11-08 19:07:02,461 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-08 19:07:02,461 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:07:02,461 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:07:02,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [349229000] [2024-11-08 19:07:02,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [349229000] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:07:02,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:07:02,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 19:07:02,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564078894] [2024-11-08 19:07:02,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:07:02,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 19:07:02,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:07:02,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 19:07:02,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:07:02,464 INFO L87 Difference]: Start difference. First operand 861 states and 1130 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 19:07:04,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:07:04,713 INFO L93 Difference]: Finished difference Result 2454 states and 3233 transitions. [2024-11-08 19:07:04,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 19:07:04,716 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 151 [2024-11-08 19:07:04,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:07:04,723 INFO L225 Difference]: With dead ends: 2454 [2024-11-08 19:07:04,723 INFO L226 Difference]: Without dead ends: 1674 [2024-11-08 19:07:04,725 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:07:04,726 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 317 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-08 19:07:04,726 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 611 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-08 19:07:04,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1674 states. [2024-11-08 19:07:05,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1674 to 1440. [2024-11-08 19:07:05,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1440 states, 1215 states have (on average 1.306172839506173) internal successors, (1587), 1235 states have internal predecessors, (1587), 156 states have call successors, (156), 68 states have call predecessors, (156), 68 states have return successors, (156), 136 states have call predecessors, (156), 156 states have call successors, (156) [2024-11-08 19:07:05,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 1899 transitions. [2024-11-08 19:07:05,021 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 1899 transitions. Word has length 151 [2024-11-08 19:07:05,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:07:05,022 INFO L471 AbstractCegarLoop]: Abstraction has 1440 states and 1899 transitions. [2024-11-08 19:07:05,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 19:07:05,022 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 1899 transitions. [2024-11-08 19:07:05,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-08 19:07:05,024 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:07:05,025 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:07:05,035 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2024-11-08 19:07:05,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:07:05,225 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:07:05,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:07:05,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1682321366, now seen corresponding path program 1 times [2024-11-08 19:07:05,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:07:05,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1942377914] [2024-11-08 19:07:05,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:07:05,227 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:07:05,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:07:05,228 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:07:05,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-11-08 19:07:05,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:05,766 INFO L255 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-08 19:07:05,773 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:07:05,870 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-08 19:07:06,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 32 [2024-11-08 19:07:08,696 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:07:08,697 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 164 treesize of output 89 [2024-11-08 19:07:08,927 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:07:08,927 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 164 treesize of output 80 [2024-11-08 19:07:09,229 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:07:09,229 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 193 treesize of output 73 [2024-11-08 19:07:09,577 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 24 proven. 308 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-08 19:07:09,577 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:07:10,423 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:07:10,423 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:07:10,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1942377914] [2024-11-08 19:07:10,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1942377914] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:07:10,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:07:10,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [19] total 27 [2024-11-08 19:07:10,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549441239] [2024-11-08 19:07:10,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:07:10,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 19:07:10,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:07:10,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 19:07:10,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=599, Unknown=0, NotChecked=0, Total=702 [2024-11-08 19:07:10,426 INFO L87 Difference]: Start difference. First operand 1440 states and 1899 transitions. Second operand has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:07:13,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:07:13,124 INFO L93 Difference]: Finished difference Result 3150 states and 4158 transitions. [2024-11-08 19:07:13,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 19:07:13,126 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 151 [2024-11-08 19:07:13,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:07:13,132 INFO L225 Difference]: With dead ends: 3150 [2024-11-08 19:07:13,132 INFO L226 Difference]: Without dead ends: 1836 [2024-11-08 19:07:13,135 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=136, Invalid=856, Unknown=0, NotChecked=0, Total=992 [2024-11-08 19:07:13,135 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 238 mSDsluCounter, 1083 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 1243 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:07:13,136 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 1243 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-08 19:07:13,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1836 states. [2024-11-08 19:07:13,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1836 to 1596. [2024-11-08 19:07:13,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1596 states, 1371 states have (on average 1.3121808898614151) internal successors, (1799), 1391 states have internal predecessors, (1799), 156 states have call successors, (156), 68 states have call predecessors, (156), 68 states have return successors, (156), 136 states have call predecessors, (156), 156 states have call successors, (156) [2024-11-08 19:07:13,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1596 states to 1596 states and 2111 transitions. [2024-11-08 19:07:13,450 INFO L78 Accepts]: Start accepts. Automaton has 1596 states and 2111 transitions. Word has length 151 [2024-11-08 19:07:13,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:07:13,450 INFO L471 AbstractCegarLoop]: Abstraction has 1596 states and 2111 transitions. [2024-11-08 19:07:13,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:07:13,451 INFO L276 IsEmpty]: Start isEmpty. Operand 1596 states and 2111 transitions. [2024-11-08 19:07:13,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-08 19:07:13,454 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:07:13,454 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:07:13,465 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2024-11-08 19:07:13,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:07:13,659 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:07:13,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:07:13,660 INFO L85 PathProgramCache]: Analyzing trace with hash 2082751245, now seen corresponding path program 1 times [2024-11-08 19:07:13,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:07:13,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2107640078] [2024-11-08 19:07:13,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:07:13,661 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:07:13,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:07:13,664 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:07:13,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-11-08 19:07:14,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:14,090 INFO L255 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 19:07:14,093 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:07:14,174 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:07:14,174 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 10 [2024-11-08 19:07:14,189 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:07:14,189 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:07:14,189 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:07:14,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2107640078] [2024-11-08 19:07:14,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2107640078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:07:14,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:07:14,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:07:14,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425315562] [2024-11-08 19:07:14,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:07:14,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:07:14,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:07:14,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:07:14,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:07:14,191 INFO L87 Difference]: Start difference. First operand 1596 states and 2111 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:07:14,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:07:14,756 INFO L93 Difference]: Finished difference Result 4016 states and 5317 transitions. [2024-11-08 19:07:14,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:07:14,757 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 151 [2024-11-08 19:07:14,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:07:14,767 INFO L225 Difference]: With dead ends: 4016 [2024-11-08 19:07:14,767 INFO L226 Difference]: Without dead ends: 2546 [2024-11-08 19:07:14,769 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:07:14,770 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 99 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 795 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:07:14,770 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 795 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:07:14,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2546 states. [2024-11-08 19:07:15,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2546 to 1736. [2024-11-08 19:07:15,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1736 states, 1511 states have (on average 1.3203176704169424) internal successors, (1995), 1531 states have internal predecessors, (1995), 156 states have call successors, (156), 68 states have call predecessors, (156), 68 states have return successors, (156), 136 states have call predecessors, (156), 156 states have call successors, (156) [2024-11-08 19:07:15,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1736 states to 1736 states and 2307 transitions. [2024-11-08 19:07:15,049 INFO L78 Accepts]: Start accepts. Automaton has 1736 states and 2307 transitions. Word has length 151 [2024-11-08 19:07:15,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:07:15,050 INFO L471 AbstractCegarLoop]: Abstraction has 1736 states and 2307 transitions. [2024-11-08 19:07:15,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:07:15,051 INFO L276 IsEmpty]: Start isEmpty. Operand 1736 states and 2307 transitions. [2024-11-08 19:07:15,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-08 19:07:15,054 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:07:15,054 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:07:15,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2024-11-08 19:07:15,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:07:15,255 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:07:15,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:07:15,256 INFO L85 PathProgramCache]: Analyzing trace with hash -156576051, now seen corresponding path program 1 times [2024-11-08 19:07:15,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:07:15,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [716742463] [2024-11-08 19:07:15,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:07:15,256 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:07:15,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:07:15,258 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:07:15,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-11-08 19:07:15,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:15,676 INFO L255 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 19:07:15,679 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:07:15,763 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:07:15,763 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 11 [2024-11-08 19:07:15,781 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:07:15,781 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:07:15,781 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:07:15,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [716742463] [2024-11-08 19:07:15,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [716742463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:07:15,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:07:15,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:07:15,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071317040] [2024-11-08 19:07:15,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:07:15,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:07:15,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:07:15,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:07:15,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:07:15,783 INFO L87 Difference]: Start difference. First operand 1736 states and 2307 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:07:16,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:07:16,345 INFO L93 Difference]: Finished difference Result 3716 states and 4928 transitions. [2024-11-08 19:07:16,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:07:16,346 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 151 [2024-11-08 19:07:16,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:07:16,354 INFO L225 Difference]: With dead ends: 3716 [2024-11-08 19:07:16,354 INFO L226 Difference]: Without dead ends: 2106 [2024-11-08 19:07:16,357 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:07:16,357 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 101 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:07:16,358 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 702 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:07:16,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2106 states. [2024-11-08 19:07:16,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2106 to 1216. [2024-11-08 19:07:16,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1216 states, 1075 states have (on average 1.3227906976744186) internal successors, (1422), 1085 states have internal predecessors, (1422), 96 states have call successors, (96), 44 states have call predecessors, (96), 44 states have return successors, (96), 86 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-08 19:07:16,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1216 states to 1216 states and 1614 transitions. [2024-11-08 19:07:16,535 INFO L78 Accepts]: Start accepts. Automaton has 1216 states and 1614 transitions. Word has length 151 [2024-11-08 19:07:16,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:07:16,535 INFO L471 AbstractCegarLoop]: Abstraction has 1216 states and 1614 transitions. [2024-11-08 19:07:16,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:07:16,536 INFO L276 IsEmpty]: Start isEmpty. Operand 1216 states and 1614 transitions. [2024-11-08 19:07:16,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-08 19:07:16,539 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:07:16,539 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:07:16,550 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2024-11-08 19:07:16,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:07:16,740 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:07:16,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:07:16,741 INFO L85 PathProgramCache]: Analyzing trace with hash 243853828, now seen corresponding path program 1 times [2024-11-08 19:07:16,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:07:16,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [462182474] [2024-11-08 19:07:16,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:07:16,742 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:07:16,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:07:16,744 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:07:16,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2024-11-08 19:07:17,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:17,226 INFO L255 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-08 19:07:17,231 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:07:17,370 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 19:07:18,443 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 67 [2024-11-08 19:07:18,606 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:07:18,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 131 treesize of output 58 [2024-11-08 19:07:18,795 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:07:18,796 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 166 treesize of output 58 [2024-11-08 19:07:19,006 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 308 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2024-11-08 19:07:19,006 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:07:19,576 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:07:19,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [462182474] [2024-11-08 19:07:19,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [462182474] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:07:19,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970947931] [2024-11-08 19:07:19,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:07:19,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:07:19,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:07:19,579 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:07:19,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-08 19:07:20,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:20,105 INFO L255 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-08 19:07:20,110 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:07:22,505 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 67 [2024-11-08 19:07:22,823 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:07:22,823 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 131 treesize of output 58 [2024-11-08 19:07:22,943 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:07:22,943 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 166 treesize of output 58 [2024-11-08 19:07:23,049 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 311 proven. 27 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2024-11-08 19:07:23,049 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:07:23,485 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:07:23,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970947931] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:07:23,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-08 19:07:23,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [13, 17] total 29 [2024-11-08 19:07:23,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151262018] [2024-11-08 19:07:23,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:07:23,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 19:07:23,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:07:23,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 19:07:23,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=686, Unknown=0, NotChecked=0, Total=812 [2024-11-08 19:07:23,489 INFO L87 Difference]: Start difference. First operand 1216 states and 1614 transitions. Second operand has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:07:26,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:07:26,624 INFO L93 Difference]: Finished difference Result 2558 states and 3380 transitions. [2024-11-08 19:07:26,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 19:07:26,625 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 151 [2024-11-08 19:07:26,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:07:26,630 INFO L225 Difference]: With dead ends: 2558 [2024-11-08 19:07:26,630 INFO L226 Difference]: Without dead ends: 1420 [2024-11-08 19:07:26,633 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 453 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=159, Invalid=963, Unknown=0, NotChecked=0, Total=1122 [2024-11-08 19:07:26,633 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 217 mSDsluCounter, 1246 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 1432 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-08 19:07:26,634 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 1432 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-08 19:07:26,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1420 states. [2024-11-08 19:07:26,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1420 to 1088. [2024-11-08 19:07:26,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1088 states, 951 states have (on average 1.3196635120925342) internal successors, (1255), 961 states have internal predecessors, (1255), 92 states have call successors, (92), 44 states have call predecessors, (92), 44 states have return successors, (92), 82 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-08 19:07:26,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1439 transitions. [2024-11-08 19:07:26,878 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1439 transitions. Word has length 151 [2024-11-08 19:07:26,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:07:26,879 INFO L471 AbstractCegarLoop]: Abstraction has 1088 states and 1439 transitions. [2024-11-08 19:07:26,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:07:26,880 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1439 transitions. [2024-11-08 19:07:26,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-08 19:07:26,883 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:07:26,883 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:07:26,912 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-08 19:07:27,097 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2024-11-08 19:07:27,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:07:27,284 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:07:27,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:07:27,285 INFO L85 PathProgramCache]: Analyzing trace with hash -457210750, now seen corresponding path program 1 times [2024-11-08 19:07:27,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:07:27,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [499244176] [2024-11-08 19:07:27,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:07:27,286 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:07:27,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:07:27,288 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:07:27,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2024-11-08 19:07:27,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:27,805 INFO L255 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-08 19:07:27,822 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:07:27,960 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 19:07:28,930 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:07:28,930 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 125 treesize of output 56 [2024-11-08 19:07:29,016 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:07:29,017 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 125 treesize of output 56 [2024-11-08 19:07:29,124 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:07:29,124 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 154 treesize of output 58 [2024-11-08 19:07:29,214 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 308 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2024-11-08 19:07:29,214 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:07:29,718 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:07:29,718 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:07:29,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [499244176] [2024-11-08 19:07:29,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [499244176] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:07:29,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:07:29,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-11-08 19:07:29,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177489360] [2024-11-08 19:07:29,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:07:29,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:07:29,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:07:29,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:07:29,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-08 19:07:29,721 INFO L87 Difference]: Start difference. First operand 1088 states and 1439 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:07:30,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:07:30,925 INFO L93 Difference]: Finished difference Result 2091 states and 2778 transitions. [2024-11-08 19:07:30,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:07:30,926 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 151 [2024-11-08 19:07:30,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:07:30,932 INFO L225 Difference]: With dead ends: 2091 [2024-11-08 19:07:30,932 INFO L226 Difference]: Without dead ends: 1089 [2024-11-08 19:07:30,934 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-08 19:07:30,935 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 85 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 19:07:30,935 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 575 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 19:07:30,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states. [2024-11-08 19:07:31,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 1087. [2024-11-08 19:07:31,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1087 states, 950 states have (on average 1.3189473684210526) internal successors, (1253), 960 states have internal predecessors, (1253), 92 states have call successors, (92), 44 states have call predecessors, (92), 44 states have return successors, (92), 82 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-08 19:07:31,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1087 states to 1087 states and 1437 transitions. [2024-11-08 19:07:31,112 INFO L78 Accepts]: Start accepts. Automaton has 1087 states and 1437 transitions. Word has length 151 [2024-11-08 19:07:31,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:07:31,112 INFO L471 AbstractCegarLoop]: Abstraction has 1087 states and 1437 transitions. [2024-11-08 19:07:31,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:07:31,113 INFO L276 IsEmpty]: Start isEmpty. Operand 1087 states and 1437 transitions. [2024-11-08 19:07:31,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-08 19:07:31,115 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:07:31,115 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:07:31,126 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Ended with exit code 0 [2024-11-08 19:07:31,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:07:31,316 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:07:31,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:07:31,317 INFO L85 PathProgramCache]: Analyzing trace with hash 234630358, now seen corresponding path program 1 times [2024-11-08 19:07:31,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:07:31,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [456726173] [2024-11-08 19:07:31,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:07:31,317 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:07:31,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:07:31,320 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:07:31,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2024-11-08 19:07:31,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:31,687 INFO L255 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 19:07:31,689 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:07:31,703 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 308 proven. 0 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2024-11-08 19:07:31,703 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:07:31,703 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:07:31,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [456726173] [2024-11-08 19:07:31,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [456726173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:07:31,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:07:31,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 19:07:31,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762193540] [2024-11-08 19:07:31,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:07:31,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:07:31,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:07:31,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:07:31,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:07:31,705 INFO L87 Difference]: Start difference. First operand 1087 states and 1437 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 19:07:31,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:07:31,879 INFO L93 Difference]: Finished difference Result 2098 states and 2784 transitions. [2024-11-08 19:07:31,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:07:31,879 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 151 [2024-11-08 19:07:31,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:07:31,883 INFO L225 Difference]: With dead ends: 2098 [2024-11-08 19:07:31,883 INFO L226 Difference]: Without dead ends: 1087 [2024-11-08 19:07:31,885 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:07:31,885 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 0 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:07:31,885 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 499 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:07:31,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1087 states. [2024-11-08 19:07:32,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1087 to 1087. [2024-11-08 19:07:32,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1087 states, 950 states have (on average 1.3147368421052632) internal successors, (1249), 960 states have internal predecessors, (1249), 92 states have call successors, (92), 44 states have call predecessors, (92), 44 states have return successors, (92), 82 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-08 19:07:32,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1087 states to 1087 states and 1433 transitions. [2024-11-08 19:07:32,099 INFO L78 Accepts]: Start accepts. Automaton has 1087 states and 1433 transitions. Word has length 151 [2024-11-08 19:07:32,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:07:32,100 INFO L471 AbstractCegarLoop]: Abstraction has 1087 states and 1433 transitions. [2024-11-08 19:07:32,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 19:07:32,100 INFO L276 IsEmpty]: Start isEmpty. Operand 1087 states and 1433 transitions. [2024-11-08 19:07:32,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-08 19:07:32,102 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:07:32,103 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:07:32,111 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2024-11-08 19:07:32,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:07:32,303 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:07:32,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:07:32,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1150093934, now seen corresponding path program 1 times [2024-11-08 19:07:32,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:07:32,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1268425365] [2024-11-08 19:07:32,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:07:32,305 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:07:32,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:07:32,306 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:07:32,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2024-11-08 19:07:32,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:32,711 INFO L255 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 19:07:32,713 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:07:32,724 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-08 19:07:32,724 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:07:32,724 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:07:32,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1268425365] [2024-11-08 19:07:32,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1268425365] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:07:32,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:07:32,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 19:07:32,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367328335] [2024-11-08 19:07:32,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:07:32,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:07:32,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:07:32,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:07:32,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:07:32,729 INFO L87 Difference]: Start difference. First operand 1087 states and 1433 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 19:07:32,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:07:32,894 INFO L93 Difference]: Finished difference Result 2111 states and 2794 transitions. [2024-11-08 19:07:32,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:07:32,895 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 151 [2024-11-08 19:07:32,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:07:32,898 INFO L225 Difference]: With dead ends: 2111 [2024-11-08 19:07:32,898 INFO L226 Difference]: Without dead ends: 1087 [2024-11-08 19:07:32,900 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:07:32,900 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 0 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:07:32,901 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 499 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:07:32,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1087 states. [2024-11-08 19:07:33,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1087 to 1087. [2024-11-08 19:07:33,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1087 states, 950 states have (on average 1.3105263157894738) internal successors, (1245), 960 states have internal predecessors, (1245), 92 states have call successors, (92), 44 states have call predecessors, (92), 44 states have return successors, (92), 82 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-08 19:07:33,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1087 states to 1087 states and 1429 transitions. [2024-11-08 19:07:33,062 INFO L78 Accepts]: Start accepts. Automaton has 1087 states and 1429 transitions. Word has length 151 [2024-11-08 19:07:33,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:07:33,063 INFO L471 AbstractCegarLoop]: Abstraction has 1087 states and 1429 transitions. [2024-11-08 19:07:33,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 19:07:33,063 INFO L276 IsEmpty]: Start isEmpty. Operand 1087 states and 1429 transitions. [2024-11-08 19:07:33,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-08 19:07:33,066 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:07:33,066 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:07:33,077 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2024-11-08 19:07:33,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:07:33,267 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:07:33,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:07:33,267 INFO L85 PathProgramCache]: Analyzing trace with hash 859044366, now seen corresponding path program 1 times [2024-11-08 19:07:33,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:07:33,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2022695829] [2024-11-08 19:07:33,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:07:33,268 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:07:33,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:07:33,269 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:07:33,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2024-11-08 19:07:33,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:33,665 INFO L255 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 19:07:33,667 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:07:33,674 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:07:33,674 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:07:33,674 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:07:33,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2022695829] [2024-11-08 19:07:33,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2022695829] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:07:33,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:07:33,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:07:33,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007887846] [2024-11-08 19:07:33,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:07:33,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:07:33,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:07:33,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:07:33,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:07:33,676 INFO L87 Difference]: Start difference. First operand 1087 states and 1429 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:07:33,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:07:33,830 INFO L93 Difference]: Finished difference Result 2092 states and 2769 transitions. [2024-11-08 19:07:33,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:07:33,831 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 153 [2024-11-08 19:07:33,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:07:33,836 INFO L225 Difference]: With dead ends: 2092 [2024-11-08 19:07:33,836 INFO L226 Difference]: Without dead ends: 1091 [2024-11-08 19:07:33,838 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:07:33,839 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 0 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:07:33,839 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 334 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:07:33,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1091 states. [2024-11-08 19:07:34,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1091 to 1091. [2024-11-08 19:07:34,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1091 states, 954 states have (on average 1.3092243186582808) internal successors, (1249), 964 states have internal predecessors, (1249), 92 states have call successors, (92), 44 states have call predecessors, (92), 44 states have return successors, (92), 82 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-08 19:07:34,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1091 states to 1091 states and 1433 transitions. [2024-11-08 19:07:34,081 INFO L78 Accepts]: Start accepts. Automaton has 1091 states and 1433 transitions. Word has length 153 [2024-11-08 19:07:34,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:07:34,082 INFO L471 AbstractCegarLoop]: Abstraction has 1091 states and 1433 transitions. [2024-11-08 19:07:34,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:07:34,082 INFO L276 IsEmpty]: Start isEmpty. Operand 1091 states and 1433 transitions. [2024-11-08 19:07:34,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-08 19:07:34,085 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:07:34,085 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:07:34,096 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Ended with exit code 0 [2024-11-08 19:07:34,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:07:34,286 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:07:34,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:07:34,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1133803980, now seen corresponding path program 1 times [2024-11-08 19:07:34,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:07:34,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1090044590] [2024-11-08 19:07:34,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:07:34,287 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:07:34,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:07:34,291 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:07:34,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2024-11-08 19:07:34,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:34,877 INFO L255 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-08 19:07:34,881 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:07:34,977 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 19:07:35,282 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 32 [2024-11-08 19:07:36,544 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 34 [2024-11-08 19:07:36,616 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-08 19:07:36,616 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:07:36,616 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:07:36,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1090044590] [2024-11-08 19:07:36,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1090044590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:07:36,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:07:36,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 19:07:36,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829112567] [2024-11-08 19:07:36,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:07:36,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 19:07:36,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:07:36,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 19:07:36,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:07:36,626 INFO L87 Difference]: Start difference. First operand 1091 states and 1433 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 7 states have internal predecessors, (69), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 19:07:38,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:07:38,513 INFO L93 Difference]: Finished difference Result 2159 states and 2844 transitions. [2024-11-08 19:07:38,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 19:07:38,515 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 7 states have internal predecessors, (69), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 153 [2024-11-08 19:07:38,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:07:38,520 INFO L225 Difference]: With dead ends: 2159 [2024-11-08 19:07:38,520 INFO L226 Difference]: Without dead ends: 1154 [2024-11-08 19:07:38,522 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:07:38,522 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 248 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-08 19:07:38,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 612 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-08 19:07:38,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1154 states. [2024-11-08 19:07:38,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1154 to 1049. [2024-11-08 19:07:38,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1049 states, 912 states have (on average 1.3015350877192982) internal successors, (1187), 922 states have internal predecessors, (1187), 92 states have call successors, (92), 44 states have call predecessors, (92), 44 states have return successors, (92), 82 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-08 19:07:38,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1049 states to 1049 states and 1371 transitions. [2024-11-08 19:07:38,735 INFO L78 Accepts]: Start accepts. Automaton has 1049 states and 1371 transitions. Word has length 153 [2024-11-08 19:07:38,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:07:38,736 INFO L471 AbstractCegarLoop]: Abstraction has 1049 states and 1371 transitions. [2024-11-08 19:07:38,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 7 states have internal predecessors, (69), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 19:07:38,736 INFO L276 IsEmpty]: Start isEmpty. Operand 1049 states and 1371 transitions. [2024-11-08 19:07:38,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-08 19:07:38,740 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:07:38,740 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:07:38,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2024-11-08 19:07:38,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:07:38,941 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:07:38,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:07:38,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1274352590, now seen corresponding path program 1 times [2024-11-08 19:07:38,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:07:38,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1786673338] [2024-11-08 19:07:38,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:07:38,942 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:07:38,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:07:38,943 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:07:38,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2024-11-08 19:07:39,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:39,443 INFO L255 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-08 19:07:39,449 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:07:39,552 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-08 19:07:39,814 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 32 [2024-11-08 19:07:40,589 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 65 [2024-11-08 19:07:40,762 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:07:40,762 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 113 treesize of output 56 [2024-11-08 19:07:40,977 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:07:40,978 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 142 treesize of output 58 [2024-11-08 19:07:41,196 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-08 19:07:41,196 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:07:41,732 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:07:41,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1786673338] [2024-11-08 19:07:41,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1786673338] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:07:41,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [911811028] [2024-11-08 19:07:41,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:07:41,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:07:41,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:07:41,734 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:07:41,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-08 19:07:42,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:42,939 INFO L255 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-08 19:07:42,943 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:07:43,105 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 32 [2024-11-08 19:07:43,881 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 65 [2024-11-08 19:07:43,965 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:07:43,965 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 113 treesize of output 56 [2024-11-08 19:07:44,095 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:07:44,096 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 142 treesize of output 58 [2024-11-08 19:07:44,202 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 6 proven. 315 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2024-11-08 19:07:44,202 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:07:44,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [911811028] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:07:44,455 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 19:07:44,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15] total 15 [2024-11-08 19:07:44,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650364611] [2024-11-08 19:07:44,455 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 19:07:44,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-08 19:07:44,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:07:44,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-08 19:07:44,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2024-11-08 19:07:44,457 INFO L87 Difference]: Start difference. First operand 1049 states and 1371 transitions. Second operand has 16 states, 16 states have (on average 4.5) internal successors, (72), 15 states have internal predecessors, (72), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-08 19:07:49,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:07:49,076 INFO L93 Difference]: Finished difference Result 2305 states and 3001 transitions. [2024-11-08 19:07:49,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-08 19:07:49,077 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.5) internal successors, (72), 15 states have internal predecessors, (72), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 153 [2024-11-08 19:07:49,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:07:49,084 INFO L225 Difference]: With dead ends: 2305 [2024-11-08 19:07:49,084 INFO L226 Difference]: Without dead ends: 1342 [2024-11-08 19:07:49,086 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 354 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=222, Invalid=1260, Unknown=0, NotChecked=0, Total=1482 [2024-11-08 19:07:49,087 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 474 mSDsluCounter, 1656 mSDsCounter, 0 mSdLazyCounter, 1316 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 1812 SdHoareTripleChecker+Invalid, 1379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1316 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:07:49,088 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [474 Valid, 1812 Invalid, 1379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1316 Invalid, 2 Unknown, 0 Unchecked, 3.1s Time] [2024-11-08 19:07:49,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1342 states. [2024-11-08 19:07:49,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1342 to 1157. [2024-11-08 19:07:49,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 1000 states have (on average 1.297) internal successors, (1297), 1012 states have internal predecessors, (1297), 104 states have call successors, (104), 52 states have call predecessors, (104), 52 states have return successors, (104), 92 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-08 19:07:49,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1505 transitions. [2024-11-08 19:07:49,275 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1505 transitions. Word has length 153 [2024-11-08 19:07:49,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:07:49,276 INFO L471 AbstractCegarLoop]: Abstraction has 1157 states and 1505 transitions. [2024-11-08 19:07:49,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.5) internal successors, (72), 15 states have internal predecessors, (72), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-08 19:07:49,276 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1505 transitions. [2024-11-08 19:07:49,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-08 19:07:49,278 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:07:49,279 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:07:49,306 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-08 19:07:49,487 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2024-11-08 19:07:49,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:07:49,680 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:07:49,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:07:49,680 INFO L85 PathProgramCache]: Analyzing trace with hash -304663558, now seen corresponding path program 1 times [2024-11-08 19:07:49,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:07:49,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [72694688] [2024-11-08 19:07:49,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:07:49,681 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:07:49,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:07:49,682 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:07:49,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2024-11-08 19:07:50,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:50,215 INFO L255 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-08 19:07:50,221 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:07:50,327 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-08 19:07:50,624 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 32 [2024-11-08 19:07:52,967 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:07:52,967 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 164 treesize of output 89 [2024-11-08 19:07:53,564 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:07:53,565 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 215 treesize of output 95 [2024-11-08 19:07:53,793 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:07:53,793 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 193 treesize of output 73 [2024-11-08 19:07:53,945 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 24 proven. 308 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-08 19:07:53,945 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:07:55,407 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:07:55,407 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:07:55,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [72694688] [2024-11-08 19:07:55,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [72694688] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:07:55,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:07:55,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [16] total 24 [2024-11-08 19:07:55,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131593475] [2024-11-08 19:07:55,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:07:55,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 19:07:55,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:07:55,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 19:07:55,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=462, Unknown=0, NotChecked=0, Total=552 [2024-11-08 19:07:55,409 INFO L87 Difference]: Start difference. First operand 1157 states and 1505 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:08:00,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:08:00,492 INFO L93 Difference]: Finished difference Result 2860 states and 3719 transitions. [2024-11-08 19:08:00,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 19:08:00,494 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 153 [2024-11-08 19:08:00,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:08:00,502 INFO L225 Difference]: With dead ends: 2860 [2024-11-08 19:08:00,502 INFO L226 Difference]: Without dead ends: 1789 [2024-11-08 19:08:00,505 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=141, Invalid=671, Unknown=0, NotChecked=0, Total=812 [2024-11-08 19:08:00,506 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 434 mSDsluCounter, 977 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 1182 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:08:00,506 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 1182 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-08 19:08:00,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1789 states. [2024-11-08 19:08:00,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1789 to 1257. [2024-11-08 19:08:00,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1100 states have (on average 1.299090909090909) internal successors, (1429), 1112 states have internal predecessors, (1429), 104 states have call successors, (104), 52 states have call predecessors, (104), 52 states have return successors, (104), 92 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-08 19:08:00,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 1637 transitions. [2024-11-08 19:08:00,792 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 1637 transitions. Word has length 153 [2024-11-08 19:08:00,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:08:00,793 INFO L471 AbstractCegarLoop]: Abstraction has 1257 states and 1637 transitions. [2024-11-08 19:08:00,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:08:00,794 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 1637 transitions. [2024-11-08 19:08:00,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-08 19:08:00,796 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:08:00,796 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:08:00,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2024-11-08 19:08:00,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:08:00,997 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:08:00,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:08:00,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1005728136, now seen corresponding path program 1 times [2024-11-08 19:08:00,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:08:00,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [959270595] [2024-11-08 19:08:00,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:08:00,999 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:08:00,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:08:01,002 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:08:01,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2024-11-08 19:08:01,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:08:01,480 INFO L255 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-08 19:08:01,484 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:08:01,570 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-08 19:08:01,856 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 32 [2024-11-08 19:08:03,664 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:08:03,664 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 164 treesize of output 89 [2024-11-08 19:08:03,916 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:08:03,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 164 treesize of output 80 [2024-11-08 19:08:04,279 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:08:04,280 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 214 treesize of output 82 [2024-11-08 19:08:04,689 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 24 proven. 308 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-08 19:08:04,689 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:08:05,742 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:08:05,742 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:08:05,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [959270595] [2024-11-08 19:08:05,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [959270595] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:08:05,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:08:05,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [17] total 23 [2024-11-08 19:08:05,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87763043] [2024-11-08 19:08:05,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:08:05,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 19:08:05,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:08:05,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 19:08:05,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=448, Unknown=0, NotChecked=0, Total=506 [2024-11-08 19:08:05,744 INFO L87 Difference]: Start difference. First operand 1257 states and 1637 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:08:09,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:08:09,284 INFO L93 Difference]: Finished difference Result 2542 states and 3318 transitions. [2024-11-08 19:08:09,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 19:08:09,285 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 153 [2024-11-08 19:08:09,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:08:09,291 INFO L225 Difference]: With dead ends: 2542 [2024-11-08 19:08:09,292 INFO L226 Difference]: Without dead ends: 1371 [2024-11-08 19:08:09,294 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 282 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=81, Invalid=675, Unknown=0, NotChecked=0, Total=756 [2024-11-08 19:08:09,294 INFO L432 NwaCegarLoop]: 233 mSDtfsCounter, 78 mSDsluCounter, 1377 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 1610 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-08 19:08:09,295 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 1610 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-08 19:08:09,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1371 states. [2024-11-08 19:08:09,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1371 to 1259. [2024-11-08 19:08:09,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1259 states, 1102 states have (on average 1.2985480943738656) internal successors, (1431), 1114 states have internal predecessors, (1431), 104 states have call successors, (104), 52 states have call predecessors, (104), 52 states have return successors, (104), 92 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-08 19:08:09,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1259 states to 1259 states and 1639 transitions. [2024-11-08 19:08:09,463 INFO L78 Accepts]: Start accepts. Automaton has 1259 states and 1639 transitions. Word has length 153 [2024-11-08 19:08:09,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:08:09,463 INFO L471 AbstractCegarLoop]: Abstraction has 1259 states and 1639 transitions. [2024-11-08 19:08:09,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:08:09,463 INFO L276 IsEmpty]: Start isEmpty. Operand 1259 states and 1639 transitions. [2024-11-08 19:08:09,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-08 19:08:09,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:08:09,466 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:08:09,476 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Ended with exit code 0 [2024-11-08 19:08:09,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:08:09,667 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:08:09,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:08:09,668 INFO L85 PathProgramCache]: Analyzing trace with hash -164114948, now seen corresponding path program 1 times [2024-11-08 19:08:09,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:08:09,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1550012590] [2024-11-08 19:08:09,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:08:09,669 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:08:09,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:08:09,672 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:08:09,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2024-11-08 19:08:10,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:08:10,322 INFO L255 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-08 19:08:10,327 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:08:10,428 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 19:08:11,350 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 67 [2024-11-08 19:08:11,480 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:08:11,480 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 131 treesize of output 58 [2024-11-08 19:08:11,678 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:08:11,679 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 166 treesize of output 58 [2024-11-08 19:08:11,896 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 308 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2024-11-08 19:08:11,896 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:08:12,465 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:08:12,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1550012590] [2024-11-08 19:08:12,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1550012590] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:08:12,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1408275192] [2024-11-08 19:08:12,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:08:12,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:08:12,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:08:12,467 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:08:12,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-08 19:08:13,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:08:13,251 INFO L255 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-08 19:08:13,255 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:08:14,378 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 67 [2024-11-08 19:08:14,486 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:08:14,487 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 131 treesize of output 58 [2024-11-08 19:08:14,641 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:08:14,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 166 treesize of output 58 [2024-11-08 19:08:14,784 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 3 proven. 335 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2024-11-08 19:08:14,784 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:08:15,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1408275192] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:08:15,079 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 19:08:15,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15] total 15 [2024-11-08 19:08:15,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409832025] [2024-11-08 19:08:15,079 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 19:08:15,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-08 19:08:15,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:08:15,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-08 19:08:15,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2024-11-08 19:08:15,081 INFO L87 Difference]: Start difference. First operand 1259 states and 1639 transitions. Second operand has 16 states, 16 states have (on average 4.5) internal successors, (72), 15 states have internal predecessors, (72), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-08 19:08:20,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:08:20,996 INFO L93 Difference]: Finished difference Result 2806 states and 3643 transitions. [2024-11-08 19:08:20,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-08 19:08:20,997 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.5) internal successors, (72), 15 states have internal predecessors, (72), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 153 [2024-11-08 19:08:20,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:08:21,002 INFO L225 Difference]: With dead ends: 2806 [2024-11-08 19:08:21,002 INFO L226 Difference]: Without dead ends: 1633 [2024-11-08 19:08:21,004 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 354 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=222, Invalid=1260, Unknown=0, NotChecked=0, Total=1482 [2024-11-08 19:08:21,005 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 482 mSDsluCounter, 1482 mSDsCounter, 0 mSdLazyCounter, 1394 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 1632 SdHoareTripleChecker+Invalid, 1477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 1394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:08:21,005 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [482 Valid, 1632 Invalid, 1477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 1394 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-08 19:08:21,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1633 states. [2024-11-08 19:08:21,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1633 to 1335. [2024-11-08 19:08:21,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1335 states, 1165 states have (on average 1.2952789699570815) internal successors, (1509), 1179 states have internal predecessors, (1509), 112 states have call successors, (112), 57 states have call predecessors, (112), 57 states have return successors, (112), 98 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-08 19:08:21,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1335 states to 1335 states and 1733 transitions. [2024-11-08 19:08:21,202 INFO L78 Accepts]: Start accepts. Automaton has 1335 states and 1733 transitions. Word has length 153 [2024-11-08 19:08:21,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:08:21,202 INFO L471 AbstractCegarLoop]: Abstraction has 1335 states and 1733 transitions. [2024-11-08 19:08:21,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.5) internal successors, (72), 15 states have internal predecessors, (72), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-08 19:08:21,202 INFO L276 IsEmpty]: Start isEmpty. Operand 1335 states and 1733 transitions. [2024-11-08 19:08:21,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-08 19:08:21,204 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:08:21,204 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:08:21,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2024-11-08 19:08:21,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-11-08 19:08:21,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:08:21,605 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:08:21,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:08:21,605 INFO L85 PathProgramCache]: Analyzing trace with hash -865179526, now seen corresponding path program 1 times [2024-11-08 19:08:21,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:08:21,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1399213665] [2024-11-08 19:08:21,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:08:21,606 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:08:21,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:08:21,607 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:08:21,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2024-11-08 19:08:22,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:08:22,211 INFO L255 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-08 19:08:22,215 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:08:22,351 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 19:08:23,437 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:08:23,437 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 126 treesize of output 57 [2024-11-08 19:08:23,545 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:08:23,546 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 126 treesize of output 57 [2024-11-08 19:08:23,702 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:08:23,703 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 155 treesize of output 59 [2024-11-08 19:08:23,818 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 308 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2024-11-08 19:08:23,818 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:08:24,270 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:08:24,271 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:08:24,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1399213665] [2024-11-08 19:08:24,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1399213665] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:08:24,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:08:24,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-11-08 19:08:24,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607182836] [2024-11-08 19:08:24,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:08:24,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:08:24,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:08:24,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:08:24,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-08 19:08:24,272 INFO L87 Difference]: Start difference. First operand 1335 states and 1733 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:08:25,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:08:25,199 INFO L93 Difference]: Finished difference Result 2700 states and 3506 transitions. [2024-11-08 19:08:25,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:08:25,200 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 153 [2024-11-08 19:08:25,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:08:25,206 INFO L225 Difference]: With dead ends: 2700 [2024-11-08 19:08:25,207 INFO L226 Difference]: Without dead ends: 1451 [2024-11-08 19:08:25,208 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-08 19:08:25,209 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 138 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 19:08:25,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 538 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 19:08:25,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1451 states. [2024-11-08 19:08:25,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1451 to 1058. [2024-11-08 19:08:25,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1058 states, 919 states have (on average 1.2872687704026116) internal successors, (1183), 929 states have internal predecessors, (1183), 92 states have call successors, (92), 46 states have call predecessors, (92), 46 states have return successors, (92), 82 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-08 19:08:25,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1367 transitions. [2024-11-08 19:08:25,449 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1367 transitions. Word has length 153 [2024-11-08 19:08:25,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:08:25,449 INFO L471 AbstractCegarLoop]: Abstraction has 1058 states and 1367 transitions. [2024-11-08 19:08:25,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:08:25,450 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1367 transitions. [2024-11-08 19:08:25,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-08 19:08:25,452 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:08:25,452 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:08:25,466 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Ended with exit code 0 [2024-11-08 19:08:25,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:08:25,653 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:08:25,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:08:25,653 INFO L85 PathProgramCache]: Analyzing trace with hash -987972050, now seen corresponding path program 1 times [2024-11-08 19:08:25,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:08:25,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1495562644] [2024-11-08 19:08:25,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:08:25,654 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:08:25,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:08:25,655 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:08:25,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2024-11-08 19:08:26,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:08:26,150 INFO L255 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-08 19:08:26,154 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:08:26,282 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 19:08:27,950 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:08:27,950 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 125 treesize of output 56 [2024-11-08 19:08:28,064 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:08:28,065 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 125 treesize of output 56 [2024-11-08 19:08:28,222 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:08:28,222 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 127 treesize of output 49 [2024-11-08 19:08:28,319 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 308 proven. 0 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2024-11-08 19:08:28,319 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:08:28,319 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:08:28,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1495562644] [2024-11-08 19:08:28,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1495562644] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:08:28,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:08:28,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 19:08:28,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357035406] [2024-11-08 19:08:28,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:08:28,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 19:08:28,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:08:28,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 19:08:28,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:08:28,322 INFO L87 Difference]: Start difference. First operand 1058 states and 1367 transitions. Second operand has 10 states, 10 states have (on average 6.9) internal successors, (69), 9 states have internal predecessors, (69), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 19:08:31,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:08:31,690 INFO L93 Difference]: Finished difference Result 2303 states and 2985 transitions. [2024-11-08 19:08:31,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 19:08:31,692 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.9) internal successors, (69), 9 states have internal predecessors, (69), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 153 [2024-11-08 19:08:31,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:08:31,697 INFO L225 Difference]: With dead ends: 2303 [2024-11-08 19:08:31,697 INFO L226 Difference]: Without dead ends: 1331 [2024-11-08 19:08:31,699 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-11-08 19:08:31,700 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 371 mSDsluCounter, 775 mSDsCounter, 0 mSdLazyCounter, 807 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:08:31,700 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 966 Invalid, 817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 807 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-08 19:08:31,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1331 states. [2024-11-08 19:08:31,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1331 to 1047. [2024-11-08 19:08:31,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1047 states, 908 states have (on average 1.2874449339207048) internal successors, (1169), 918 states have internal predecessors, (1169), 92 states have call successors, (92), 46 states have call predecessors, (92), 46 states have return successors, (92), 82 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-08 19:08:31,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1047 states to 1047 states and 1353 transitions. [2024-11-08 19:08:31,872 INFO L78 Accepts]: Start accepts. Automaton has 1047 states and 1353 transitions. Word has length 153 [2024-11-08 19:08:31,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:08:31,873 INFO L471 AbstractCegarLoop]: Abstraction has 1047 states and 1353 transitions. [2024-11-08 19:08:31,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.9) internal successors, (69), 9 states have internal predecessors, (69), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 19:08:31,873 INFO L276 IsEmpty]: Start isEmpty. Operand 1047 states and 1353 transitions. [2024-11-08 19:08:31,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-08 19:08:31,875 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:08:31,875 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:08:31,886 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Ended with exit code 0 [2024-11-08 19:08:32,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:08:32,076 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:08:32,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:08:32,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1408602619, now seen corresponding path program 1 times [2024-11-08 19:08:32,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:08:32,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1892497952] [2024-11-08 19:08:32,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:08:32,077 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:08:32,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:08:32,078 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:08:32,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2024-11-08 19:08:32,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:08:32,610 INFO L255 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-08 19:08:32,615 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:08:32,871 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 19:08:33,017 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2024-11-08 19:08:33,496 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:08:33,496 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 38 [2024-11-08 19:08:34,449 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:08:34,449 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 20 [2024-11-08 19:08:34,500 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 345 proven. 54 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2024-11-08 19:08:34,500 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:08:35,906 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 84 proven. 60 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2024-11-08 19:08:35,906 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:08:35,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1892497952] [2024-11-08 19:08:35,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1892497952] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:08:35,907 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 19:08:35,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 33 [2024-11-08 19:08:35,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311862972] [2024-11-08 19:08:35,907 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 19:08:35,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-08 19:08:35,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:08:35,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-08 19:08:35,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=273, Invalid=783, Unknown=0, NotChecked=0, Total=1056 [2024-11-08 19:08:35,909 INFO L87 Difference]: Start difference. First operand 1047 states and 1353 transitions. Second operand has 33 states, 27 states have (on average 5.074074074074074) internal successors, (137), 29 states have internal predecessors, (137), 10 states have call successors, (36), 5 states have call predecessors, (36), 9 states have return successors, (36), 8 states have call predecessors, (36), 10 states have call successors, (36) [2024-11-08 19:08:40,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:08:40,307 INFO L93 Difference]: Finished difference Result 4168 states and 5293 transitions. [2024-11-08 19:08:40,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-08 19:08:40,307 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 27 states have (on average 5.074074074074074) internal successors, (137), 29 states have internal predecessors, (137), 10 states have call successors, (36), 5 states have call predecessors, (36), 9 states have return successors, (36), 8 states have call predecessors, (36), 10 states have call successors, (36) Word has length 154 [2024-11-08 19:08:40,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:08:40,315 INFO L225 Difference]: With dead ends: 4168 [2024-11-08 19:08:40,315 INFO L226 Difference]: Without dead ends: 3207 [2024-11-08 19:08:40,318 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1080 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=967, Invalid=2339, Unknown=0, NotChecked=0, Total=3306 [2024-11-08 19:08:40,319 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 2169 mSDsluCounter, 2654 mSDsCounter, 0 mSdLazyCounter, 980 mSolverCounterSat, 463 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2187 SdHoareTripleChecker+Valid, 2817 SdHoareTripleChecker+Invalid, 1443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 463 IncrementalHoareTripleChecker+Valid, 980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-08 19:08:40,319 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2187 Valid, 2817 Invalid, 1443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [463 Valid, 980 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-08 19:08:40,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3207 states. [2024-11-08 19:08:40,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3207 to 2216. [2024-11-08 19:08:40,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2216 states, 1907 states have (on average 1.2721552176192974) internal successors, (2426), 1927 states have internal predecessors, (2426), 195 states have call successors, (195), 113 states have call predecessors, (195), 113 states have return successors, (195), 175 states have call predecessors, (195), 195 states have call successors, (195) [2024-11-08 19:08:40,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2216 states to 2216 states and 2816 transitions. [2024-11-08 19:08:40,738 INFO L78 Accepts]: Start accepts. Automaton has 2216 states and 2816 transitions. Word has length 154 [2024-11-08 19:08:40,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:08:40,739 INFO L471 AbstractCegarLoop]: Abstraction has 2216 states and 2816 transitions. [2024-11-08 19:08:40,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 27 states have (on average 5.074074074074074) internal successors, (137), 29 states have internal predecessors, (137), 10 states have call successors, (36), 5 states have call predecessors, (36), 9 states have return successors, (36), 8 states have call predecessors, (36), 10 states have call successors, (36) [2024-11-08 19:08:40,739 INFO L276 IsEmpty]: Start isEmpty. Operand 2216 states and 2816 transitions. [2024-11-08 19:08:40,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-08 19:08:40,741 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:08:40,741 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:08:40,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2024-11-08 19:08:40,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:08:40,946 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:08:40,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:08:40,946 INFO L85 PathProgramCache]: Analyzing trace with hash -280341123, now seen corresponding path program 1 times [2024-11-08 19:08:40,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:08:40,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1684634124] [2024-11-08 19:08:40,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:08:40,947 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:08:40,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:08:40,951 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:08:40,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2024-11-08 19:08:41,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:08:41,568 INFO L255 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-08 19:08:41,589 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:08:41,684 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-08 19:08:42,026 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 32 [2024-11-08 19:08:44,382 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:08:44,382 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 164 treesize of output 89 [2024-11-08 19:08:44,982 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 24 proven. 308 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-08 19:08:44,982 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:08:46,303 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:08:46,303 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:08:46,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1684634124] [2024-11-08 19:08:46,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1684634124] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:08:46,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:08:46,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [15] total 23 [2024-11-08 19:08:46,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197865030] [2024-11-08 19:08:46,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:08:46,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 19:08:46,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:08:46,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 19:08:46,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=419, Unknown=0, NotChecked=0, Total=506 [2024-11-08 19:08:46,305 INFO L87 Difference]: Start difference. First operand 2216 states and 2816 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:08:50,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:08:50,651 INFO L93 Difference]: Finished difference Result 4794 states and 6082 transitions. [2024-11-08 19:08:50,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 19:08:50,652 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 154 [2024-11-08 19:08:50,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:08:50,661 INFO L225 Difference]: With dead ends: 4794 [2024-11-08 19:08:50,662 INFO L226 Difference]: Without dead ends: 2664 [2024-11-08 19:08:50,665 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=128, Invalid=574, Unknown=0, NotChecked=0, Total=702 [2024-11-08 19:08:50,666 INFO L432 NwaCegarLoop]: 272 mSDtfsCounter, 155 mSDsluCounter, 1205 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 1477 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:08:50,666 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 1477 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-08 19:08:50,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2664 states. [2024-11-08 19:08:51,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2664 to 2224. [2024-11-08 19:08:51,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2224 states, 1915 states have (on average 1.2720626631853786) internal successors, (2436), 1935 states have internal predecessors, (2436), 195 states have call successors, (195), 113 states have call predecessors, (195), 113 states have return successors, (195), 175 states have call predecessors, (195), 195 states have call successors, (195) [2024-11-08 19:08:51,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2224 states to 2224 states and 2826 transitions. [2024-11-08 19:08:51,158 INFO L78 Accepts]: Start accepts. Automaton has 2224 states and 2826 transitions. Word has length 154 [2024-11-08 19:08:51,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:08:51,159 INFO L471 AbstractCegarLoop]: Abstraction has 2224 states and 2826 transitions. [2024-11-08 19:08:51,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:08:51,159 INFO L276 IsEmpty]: Start isEmpty. Operand 2224 states and 2826 transitions. [2024-11-08 19:08:51,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-08 19:08:51,162 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:08:51,162 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:08:51,173 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Ended with exit code 0 [2024-11-08 19:08:51,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:08:51,364 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:08:51,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:08:51,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1741154593, now seen corresponding path program 1 times [2024-11-08 19:08:51,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:08:51,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1560593921] [2024-11-08 19:08:51,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:08:51,366 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:08:51,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:08:51,370 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:08:51,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2024-11-08 19:08:51,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:08:51,931 INFO L255 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 19:08:51,933 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:08:53,041 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:08:53,041 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 140 treesize of output 77 [2024-11-08 19:08:53,253 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:08:53,254 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 148 treesize of output 52 [2024-11-08 19:08:53,351 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 308 proven. 0 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2024-11-08 19:08:53,351 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:08:53,351 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:08:53,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1560593921] [2024-11-08 19:08:53,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1560593921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:08:53,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:08:53,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 19:08:53,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247629130] [2024-11-08 19:08:53,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:08:53,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 19:08:53,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:08:53,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 19:08:53,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:08:53,353 INFO L87 Difference]: Start difference. First operand 2224 states and 2826 transitions. Second operand has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 10 states have internal predecessors, (71), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 19:08:56,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:08:56,745 INFO L93 Difference]: Finished difference Result 4789 states and 6088 transitions. [2024-11-08 19:08:56,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 19:08:56,747 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 10 states have internal predecessors, (71), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 155 [2024-11-08 19:08:56,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:08:56,752 INFO L225 Difference]: With dead ends: 4789 [2024-11-08 19:08:56,753 INFO L226 Difference]: Without dead ends: 2651 [2024-11-08 19:08:56,755 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-11-08 19:08:56,756 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 463 mSDsluCounter, 932 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 1109 SdHoareTripleChecker+Invalid, 909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-08 19:08:56,757 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [463 Valid, 1109 Invalid, 909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 888 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-08 19:08:56,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2651 states. [2024-11-08 19:08:57,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2651 to 2232. [2024-11-08 19:08:57,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2232 states, 1923 states have (on average 1.2709308372334893) internal successors, (2444), 1943 states have internal predecessors, (2444), 195 states have call successors, (195), 113 states have call predecessors, (195), 113 states have return successors, (195), 175 states have call predecessors, (195), 195 states have call successors, (195) [2024-11-08 19:08:57,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2232 states to 2232 states and 2834 transitions. [2024-11-08 19:08:57,247 INFO L78 Accepts]: Start accepts. Automaton has 2232 states and 2834 transitions. Word has length 155 [2024-11-08 19:08:57,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:08:57,247 INFO L471 AbstractCegarLoop]: Abstraction has 2232 states and 2834 transitions. [2024-11-08 19:08:57,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 10 states have internal predecessors, (71), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 19:08:57,247 INFO L276 IsEmpty]: Start isEmpty. Operand 2232 states and 2834 transitions. [2024-11-08 19:08:57,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-08 19:08:57,249 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:08:57,249 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:08:57,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2024-11-08 19:08:57,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:08:57,450 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:08:57,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:08:57,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1875168099, now seen corresponding path program 1 times [2024-11-08 19:08:57,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:08:57,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2147366168] [2024-11-08 19:08:57,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:08:57,451 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:08:57,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:08:57,453 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:08:57,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2024-11-08 19:08:57,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:08:57,881 INFO L255 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 19:08:57,883 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:08:58,202 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 22 [2024-11-08 19:08:58,241 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:08:58,241 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:08:58,241 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:08:58,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2147366168] [2024-11-08 19:08:58,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2147366168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:08:58,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:08:58,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:08:58,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479127644] [2024-11-08 19:08:58,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:08:58,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:08:58,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:08:58,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:08:58,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:08:58,243 INFO L87 Difference]: Start difference. First operand 2232 states and 2834 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:09:00,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:09:00,570 INFO L93 Difference]: Finished difference Result 5631 states and 7169 transitions. [2024-11-08 19:09:00,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 19:09:00,571 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 155 [2024-11-08 19:09:00,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:09:00,579 INFO L225 Difference]: With dead ends: 5631 [2024-11-08 19:09:00,579 INFO L226 Difference]: Without dead ends: 3485 [2024-11-08 19:09:00,582 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:09:00,583 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 194 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-08 19:09:00,583 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 537 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-08 19:09:00,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3485 states. [2024-11-08 19:09:01,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3485 to 2428. [2024-11-08 19:09:01,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2428 states, 2119 states have (on average 1.2722982538933458) internal successors, (2696), 2139 states have internal predecessors, (2696), 195 states have call successors, (195), 113 states have call predecessors, (195), 113 states have return successors, (195), 175 states have call predecessors, (195), 195 states have call successors, (195) [2024-11-08 19:09:01,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2428 states to 2428 states and 3086 transitions. [2024-11-08 19:09:01,131 INFO L78 Accepts]: Start accepts. Automaton has 2428 states and 3086 transitions. Word has length 155 [2024-11-08 19:09:01,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:09:01,132 INFO L471 AbstractCegarLoop]: Abstraction has 2428 states and 3086 transitions. [2024-11-08 19:09:01,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:09:01,132 INFO L276 IsEmpty]: Start isEmpty. Operand 2428 states and 3086 transitions. [2024-11-08 19:09:01,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-08 19:09:01,135 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:09:01,135 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:09:01,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Ended with exit code 0 [2024-11-08 19:09:01,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:09:01,336 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:09:01,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:09:01,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1452466273, now seen corresponding path program 1 times [2024-11-08 19:09:01,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:09:01,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1717983048] [2024-11-08 19:09:01,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:09:01,338 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:09:01,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:09:01,341 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:09:01,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2024-11-08 19:09:01,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:09:01,912 INFO L255 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-08 19:09:01,917 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:09:03,281 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:09:03,281 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 140 treesize of output 77 [2024-11-08 19:09:03,519 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 308 proven. 0 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2024-11-08 19:09:03,520 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:09:03,520 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:09:03,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1717983048] [2024-11-08 19:09:03,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1717983048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:09:03,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:09:03,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 19:09:03,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056858979] [2024-11-08 19:09:03,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:09:03,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 19:09:03,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:09:03,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 19:09:03,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:09:03,522 INFO L87 Difference]: Start difference. First operand 2428 states and 3086 transitions. Second operand has 10 states, 10 states have (on average 7.1) internal successors, (71), 9 states have internal predecessors, (71), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 19:09:07,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:09:07,125 INFO L93 Difference]: Finished difference Result 5163 states and 6565 transitions. [2024-11-08 19:09:07,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 19:09:07,127 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 9 states have internal predecessors, (71), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 155 [2024-11-08 19:09:07,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:09:07,138 INFO L225 Difference]: With dead ends: 5163 [2024-11-08 19:09:07,138 INFO L226 Difference]: Without dead ends: 2821 [2024-11-08 19:09:07,143 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:09:07,144 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 323 mSDsluCounter, 913 mSDsCounter, 0 mSdLazyCounter, 917 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 1127 SdHoareTripleChecker+Invalid, 925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-08 19:09:07,144 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 1127 Invalid, 925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 917 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-08 19:09:07,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2821 states. [2024-11-08 19:09:07,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2821 to 2378. [2024-11-08 19:09:07,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2378 states, 2069 states have (on average 1.2706621556307396) internal successors, (2629), 2089 states have internal predecessors, (2629), 195 states have call successors, (195), 113 states have call predecessors, (195), 113 states have return successors, (195), 175 states have call predecessors, (195), 195 states have call successors, (195) [2024-11-08 19:09:07,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2378 states to 2378 states and 3019 transitions. [2024-11-08 19:09:07,932 INFO L78 Accepts]: Start accepts. Automaton has 2378 states and 3019 transitions. Word has length 155 [2024-11-08 19:09:07,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:09:07,933 INFO L471 AbstractCegarLoop]: Abstraction has 2378 states and 3019 transitions. [2024-11-08 19:09:07,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 9 states have internal predecessors, (71), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 19:09:07,933 INFO L276 IsEmpty]: Start isEmpty. Operand 2378 states and 3019 transitions. [2024-11-08 19:09:07,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-08 19:09:07,936 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:09:07,936 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:09:07,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Ended with exit code 0 [2024-11-08 19:09:08,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:09:08,140 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:09:08,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:09:08,141 INFO L85 PathProgramCache]: Analyzing trace with hash -853454494, now seen corresponding path program 1 times [2024-11-08 19:09:08,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:09:08,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2000967045] [2024-11-08 19:09:08,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:09:08,142 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:09:08,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:09:08,144 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:09:08,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2024-11-08 19:09:08,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:09:08,731 INFO L255 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-08 19:09:08,735 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:09:08,859 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-08 19:09:09,280 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 32 [2024-11-08 19:09:10,932 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:09:10,932 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 126 treesize of output 54 [2024-11-08 19:09:11,032 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 34 proven. 338 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2024-11-08 19:09:11,032 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:09:12,214 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:09:12,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2000967045] [2024-11-08 19:09:12,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2000967045] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:09:12,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2030315317] [2024-11-08 19:09:12,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:09:12,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:09:12,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:09:12,215 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:09:12,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-11-08 19:09:12,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:09:12,959 INFO L255 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-08 19:09:12,964 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:09:14,710 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 65 [2024-11-08 19:09:14,916 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:09:14,916 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 129 treesize of output 56 [2024-11-08 19:09:15,190 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:09:15,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 164 treesize of output 56 [2024-11-08 19:09:15,716 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 13 proven. 362 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-11-08 19:09:15,716 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:09:16,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2030315317] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:09:16,724 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 19:09:16,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 18] total 29 [2024-11-08 19:09:16,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192587421] [2024-11-08 19:09:16,724 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 19:09:16,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-08 19:09:16,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:09:16,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-08 19:09:16,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=1718, Unknown=0, NotChecked=0, Total=1892 [2024-11-08 19:09:16,727 INFO L87 Difference]: Start difference. First operand 2378 states and 3019 transitions. Second operand has 30 states, 28 states have (on average 4.821428571428571) internal successors, (135), 27 states have internal predecessors, (135), 6 states have call successors, (30), 6 states have call predecessors, (30), 7 states have return successors, (30), 4 states have call predecessors, (30), 6 states have call successors, (30) [2024-11-08 19:09:33,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:09:33,697 INFO L93 Difference]: Finished difference Result 7834 states and 9895 transitions. [2024-11-08 19:09:33,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2024-11-08 19:09:33,698 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 28 states have (on average 4.821428571428571) internal successors, (135), 27 states have internal predecessors, (135), 6 states have call successors, (30), 6 states have call predecessors, (30), 7 states have return successors, (30), 4 states have call predecessors, (30), 6 states have call successors, (30) Word has length 155 [2024-11-08 19:09:33,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:09:33,714 INFO L225 Difference]: With dead ends: 7834 [2024-11-08 19:09:33,714 INFO L226 Difference]: Without dead ends: 5538 [2024-11-08 19:09:33,720 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 497 GetRequests, 409 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1913 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=887, Invalid=7123, Unknown=0, NotChecked=0, Total=8010 [2024-11-08 19:09:33,721 INFO L432 NwaCegarLoop]: 261 mSDtfsCounter, 1112 mSDsluCounter, 4098 mSDsCounter, 0 mSdLazyCounter, 4290 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1129 SdHoareTripleChecker+Valid, 4359 SdHoareTripleChecker+Invalid, 4497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 4290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2024-11-08 19:09:33,721 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1129 Valid, 4359 Invalid, 4497 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [207 Valid, 4290 Invalid, 0 Unknown, 0 Unchecked, 9.6s Time] [2024-11-08 19:09:33,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5538 states. [2024-11-08 19:09:34,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5538 to 3185. [2024-11-08 19:09:34,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3185 states, 2766 states have (on average 1.267534345625452) internal successors, (3506), 2790 states have internal predecessors, (3506), 265 states have call successors, (265), 153 states have call predecessors, (265), 153 states have return successors, (265), 241 states have call predecessors, (265), 265 states have call successors, (265) [2024-11-08 19:09:34,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3185 states to 3185 states and 4036 transitions. [2024-11-08 19:09:34,619 INFO L78 Accepts]: Start accepts. Automaton has 3185 states and 4036 transitions. Word has length 155 [2024-11-08 19:09:34,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:09:34,619 INFO L471 AbstractCegarLoop]: Abstraction has 3185 states and 4036 transitions. [2024-11-08 19:09:34,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 28 states have (on average 4.821428571428571) internal successors, (135), 27 states have internal predecessors, (135), 6 states have call successors, (30), 6 states have call predecessors, (30), 7 states have return successors, (30), 4 states have call predecessors, (30), 6 states have call successors, (30) [2024-11-08 19:09:34,620 INFO L276 IsEmpty]: Start isEmpty. Operand 3185 states and 4036 transitions. [2024-11-08 19:09:34,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-08 19:09:34,623 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:09:34,623 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:09:34,648 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2024-11-08 19:09:34,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2024-11-08 19:09:35,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:09:35,024 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:09:35,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:09:35,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1574804128, now seen corresponding path program 1 times [2024-11-08 19:09:35,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:09:35,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2101956796] [2024-11-08 19:09:35,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:09:35,025 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:09:35,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:09:35,026 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:09:35,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2024-11-08 19:09:35,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:09:35,458 INFO L255 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 19:09:35,459 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:09:35,491 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 341 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2024-11-08 19:09:35,492 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:09:35,492 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:09:35,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2101956796] [2024-11-08 19:09:35,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2101956796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:09:35,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:09:35,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 19:09:35,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580745330] [2024-11-08 19:09:35,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:09:35,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:09:35,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:09:35,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:09:35,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:09:35,494 INFO L87 Difference]: Start difference. First operand 3185 states and 4036 transitions. Second operand has 6 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-08 19:09:36,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:09:36,184 INFO L93 Difference]: Finished difference Result 5480 states and 6920 transitions. [2024-11-08 19:09:36,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 19:09:36,185 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 155 [2024-11-08 19:09:36,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:09:36,191 INFO L225 Difference]: With dead ends: 5480 [2024-11-08 19:09:36,192 INFO L226 Difference]: Without dead ends: 2339 [2024-11-08 19:09:36,196 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:09:36,196 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 1 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:09:36,197 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 707 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:09:36,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2339 states. [2024-11-08 19:09:36,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2339 to 2246. [2024-11-08 19:09:36,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2246 states, 1954 states have (on average 1.26560900716479) internal successors, (2473), 1968 states have internal predecessors, (2473), 183 states have call successors, (183), 108 states have call predecessors, (183), 108 states have return successors, (183), 169 states have call predecessors, (183), 183 states have call successors, (183) [2024-11-08 19:09:36,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2246 states to 2246 states and 2839 transitions. [2024-11-08 19:09:36,570 INFO L78 Accepts]: Start accepts. Automaton has 2246 states and 2839 transitions. Word has length 155 [2024-11-08 19:09:36,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:09:36,571 INFO L471 AbstractCegarLoop]: Abstraction has 2246 states and 2839 transitions. [2024-11-08 19:09:36,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-08 19:09:36,571 INFO L276 IsEmpty]: Start isEmpty. Operand 2246 states and 2839 transitions. [2024-11-08 19:09:36,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-08 19:09:36,572 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:09:36,573 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:09:36,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2024-11-08 19:09:36,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:09:36,773 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:09:36,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:09:36,774 INFO L85 PathProgramCache]: Analyzing trace with hash 2084403620, now seen corresponding path program 1 times [2024-11-08 19:09:36,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:09:36,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [612594610] [2024-11-08 19:09:36,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:09:36,775 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:09:36,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:09:36,778 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:09:36,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2024-11-08 19:09:37,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:09:37,289 INFO L255 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-08 19:09:37,292 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:09:37,312 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 19:09:37,351 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 21 [2024-11-08 19:09:37,386 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 21 [2024-11-08 19:09:37,515 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:09:37,515 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:09:37,515 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:09:37,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [612594610] [2024-11-08 19:09:37,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [612594610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:09:37,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:09:37,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 19:09:37,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823164063] [2024-11-08 19:09:37,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:09:37,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 19:09:37,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:09:37,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 19:09:37,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 19:09:37,517 INFO L87 Difference]: Start difference. First operand 2246 states and 2839 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:09:40,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:09:40,057 INFO L93 Difference]: Finished difference Result 5956 states and 7514 transitions. [2024-11-08 19:09:40,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 19:09:40,058 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 155 [2024-11-08 19:09:40,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:09:40,065 INFO L225 Difference]: With dead ends: 5956 [2024-11-08 19:09:40,065 INFO L226 Difference]: Without dead ends: 3778 [2024-11-08 19:09:40,068 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-11-08 19:09:40,068 INFO L432 NwaCegarLoop]: 288 mSDtfsCounter, 152 mSDsluCounter, 1685 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1973 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-08 19:09:40,068 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 1973 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-08 19:09:40,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3778 states. [2024-11-08 19:09:40,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3778 to 2466. [2024-11-08 19:09:40,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2466 states, 2174 states have (on average 1.2700091996320146) internal successors, (2761), 2188 states have internal predecessors, (2761), 183 states have call successors, (183), 108 states have call predecessors, (183), 108 states have return successors, (183), 169 states have call predecessors, (183), 183 states have call successors, (183) [2024-11-08 19:09:40,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2466 states to 2466 states and 3127 transitions. [2024-11-08 19:09:40,526 INFO L78 Accepts]: Start accepts. Automaton has 2466 states and 3127 transitions. Word has length 155 [2024-11-08 19:09:40,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:09:40,526 INFO L471 AbstractCegarLoop]: Abstraction has 2466 states and 3127 transitions. [2024-11-08 19:09:40,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:09:40,527 INFO L276 IsEmpty]: Start isEmpty. Operand 2466 states and 3127 transitions. [2024-11-08 19:09:40,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-08 19:09:40,529 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:09:40,530 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:09:40,540 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Ended with exit code 0 [2024-11-08 19:09:40,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:09:40,730 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:09:40,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:09:40,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1509499098, now seen corresponding path program 1 times [2024-11-08 19:09:40,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:09:40,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1489568349] [2024-11-08 19:09:40,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:09:40,733 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:09:40,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:09:40,736 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:09:40,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2024-11-08 19:09:41,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:09:41,349 INFO L255 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-08 19:09:41,353 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:09:41,357 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-08 19:09:41,361 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 19:09:41,392 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 19 [2024-11-08 19:09:41,418 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 19 [2024-11-08 19:09:41,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 21 [2024-11-08 19:09:41,484 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:09:41,484 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:09:41,484 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:09:41,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1489568349] [2024-11-08 19:09:41,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1489568349] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:09:41,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:09:41,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:09:41,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633648102] [2024-11-08 19:09:41,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:09:41,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:09:41,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:09:41,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:09:41,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:09:41,487 INFO L87 Difference]: Start difference. First operand 2466 states and 3127 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:09:42,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:09:42,940 INFO L93 Difference]: Finished difference Result 5406 states and 6848 transitions. [2024-11-08 19:09:42,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:09:42,941 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 155 [2024-11-08 19:09:42,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:09:42,946 INFO L225 Difference]: With dead ends: 5406 [2024-11-08 19:09:42,946 INFO L226 Difference]: Without dead ends: 3008 [2024-11-08 19:09:42,949 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:09:42,949 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 74 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 19:09:42,949 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 651 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 19:09:42,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3008 states. [2024-11-08 19:09:43,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3008 to 2384. [2024-11-08 19:09:43,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2384 states, 2092 states have (on average 1.2691204588910134) internal successors, (2655), 2106 states have internal predecessors, (2655), 183 states have call successors, (183), 108 states have call predecessors, (183), 108 states have return successors, (183), 169 states have call predecessors, (183), 183 states have call successors, (183) [2024-11-08 19:09:43,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2384 states to 2384 states and 3021 transitions. [2024-11-08 19:09:43,364 INFO L78 Accepts]: Start accepts. Automaton has 2384 states and 3021 transitions. Word has length 155 [2024-11-08 19:09:43,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:09:43,364 INFO L471 AbstractCegarLoop]: Abstraction has 2384 states and 3021 transitions. [2024-11-08 19:09:43,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:09:43,364 INFO L276 IsEmpty]: Start isEmpty. Operand 2384 states and 3021 transitions. [2024-11-08 19:09:43,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-08 19:09:43,366 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:09:43,366 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:09:43,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2024-11-08 19:09:43,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:09:43,567 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:09:43,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:09:43,567 INFO L85 PathProgramCache]: Analyzing trace with hash -2070015066, now seen corresponding path program 1 times [2024-11-08 19:09:43,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:09:43,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1371500727] [2024-11-08 19:09:43,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:09:43,568 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:09:43,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:09:43,569 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:09:43,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2024-11-08 19:09:44,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:09:44,088 INFO L255 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-08 19:09:44,092 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:09:44,097 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-08 19:09:44,123 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 19:09:44,168 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 20 [2024-11-08 19:09:44,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 20 [2024-11-08 19:09:44,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 22 [2024-11-08 19:09:44,298 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:09:44,298 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:09:44,299 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:09:44,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1371500727] [2024-11-08 19:09:44,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1371500727] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:09:44,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:09:44,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:09:44,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97834400] [2024-11-08 19:09:44,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:09:44,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:09:44,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:09:44,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:09:44,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:09:44,301 INFO L87 Difference]: Start difference. First operand 2384 states and 3021 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:09:45,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:09:45,760 INFO L93 Difference]: Finished difference Result 5049 states and 6386 transitions. [2024-11-08 19:09:45,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:09:45,761 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 155 [2024-11-08 19:09:45,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:09:45,768 INFO L225 Difference]: With dead ends: 5049 [2024-11-08 19:09:45,768 INFO L226 Difference]: Without dead ends: 2733 [2024-11-08 19:09:45,771 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:09:45,771 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 73 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 19:09:45,771 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 570 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 19:09:45,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2733 states. [2024-11-08 19:09:46,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2733 to 1616. [2024-11-08 19:09:46,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1616 states, 1409 states have (on average 1.2562100780695529) internal successors, (1770), 1415 states have internal predecessors, (1770), 130 states have call successors, (130), 76 states have call predecessors, (130), 76 states have return successors, (130), 124 states have call predecessors, (130), 130 states have call successors, (130) [2024-11-08 19:09:46,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1616 states to 1616 states and 2030 transitions. [2024-11-08 19:09:46,048 INFO L78 Accepts]: Start accepts. Automaton has 1616 states and 2030 transitions. Word has length 155 [2024-11-08 19:09:46,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:09:46,049 INFO L471 AbstractCegarLoop]: Abstraction has 1616 states and 2030 transitions. [2024-11-08 19:09:46,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:09:46,049 INFO L276 IsEmpty]: Start isEmpty. Operand 1616 states and 2030 transitions. [2024-11-08 19:09:46,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-08 19:09:46,051 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:09:46,051 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:09:46,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Forceful destruction successful, exit code 0 [2024-11-08 19:09:46,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:09:46,252 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:09:46,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:09:46,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1368950488, now seen corresponding path program 1 times [2024-11-08 19:09:46,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:09:46,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2028702785] [2024-11-08 19:09:46,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:09:46,253 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:09:46,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:09:46,254 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:09:46,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2024-11-08 19:09:46,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:09:46,781 INFO L255 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-08 19:09:46,787 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:09:46,875 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-08 19:09:47,295 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 30 [2024-11-08 19:09:48,496 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 64 [2024-11-08 19:09:48,678 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:09:48,678 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 112 treesize of output 55 [2024-11-08 19:09:48,943 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:09:48,943 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 141 treesize of output 57 [2024-11-08 19:09:49,147 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 299 proven. 33 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-08 19:09:49,147 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:09:49,851 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:09:49,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2028702785] [2024-11-08 19:09:49,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2028702785] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:09:49,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1702191604] [2024-11-08 19:09:49,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:09:49,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:09:49,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:09:49,854 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:09:49,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2024-11-08 19:09:50,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:09:50,241 INFO L255 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-08 19:09:50,246 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:09:51,457 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 30 [2024-11-08 19:09:55,280 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:09:55,281 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 172 treesize of output 97 [2024-11-08 19:09:56,732 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:09:56,732 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 223 treesize of output 103 [2024-11-08 19:09:56,739 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 299 proven. 33 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-08 19:09:56,739 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:09:59,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1702191604] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:09:59,099 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 19:09:59,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 21] total 35 [2024-11-08 19:09:59,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780028431] [2024-11-08 19:09:59,099 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 19:09:59,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-08 19:09:59,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:09:59,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-08 19:09:59,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=316, Invalid=2336, Unknown=0, NotChecked=0, Total=2652 [2024-11-08 19:09:59,101 INFO L87 Difference]: Start difference. First operand 1616 states and 2030 transitions. Second operand has 36 states, 34 states have (on average 3.764705882352941) internal successors, (128), 33 states have internal predecessors, (128), 5 states have call successors, (30), 5 states have call predecessors, (30), 5 states have return successors, (30), 3 states have call predecessors, (30), 5 states have call successors, (30) [2024-11-08 19:10:14,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:10:14,815 INFO L93 Difference]: Finished difference Result 5606 states and 7036 transitions. [2024-11-08 19:10:14,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2024-11-08 19:10:14,816 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 34 states have (on average 3.764705882352941) internal successors, (128), 33 states have internal predecessors, (128), 5 states have call successors, (30), 5 states have call predecessors, (30), 5 states have return successors, (30), 3 states have call predecessors, (30), 5 states have call successors, (30) Word has length 155 [2024-11-08 19:10:14,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:10:14,821 INFO L225 Difference]: With dead ends: 5606 [2024-11-08 19:10:14,821 INFO L226 Difference]: Without dead ends: 4058 [2024-11-08 19:10:14,824 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1504 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=687, Invalid=5165, Unknown=0, NotChecked=0, Total=5852 [2024-11-08 19:10:14,824 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 880 mSDsluCounter, 4696 mSDsCounter, 0 mSdLazyCounter, 4760 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 923 SdHoareTripleChecker+Valid, 4938 SdHoareTripleChecker+Invalid, 4864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 4760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2024-11-08 19:10:14,825 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [923 Valid, 4938 Invalid, 4864 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [104 Valid, 4760 Invalid, 0 Unknown, 0 Unchecked, 10.8s Time] [2024-11-08 19:10:14,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4058 states. [2024-11-08 19:10:15,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4058 to 1966. [2024-11-08 19:10:15,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1966 states, 1687 states have (on average 1.2436277415530528) internal successors, (2098), 1693 states have internal predecessors, (2098), 176 states have call successors, (176), 102 states have call predecessors, (176), 102 states have return successors, (176), 170 states have call predecessors, (176), 176 states have call successors, (176) [2024-11-08 19:10:15,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1966 states to 1966 states and 2450 transitions. [2024-11-08 19:10:15,165 INFO L78 Accepts]: Start accepts. Automaton has 1966 states and 2450 transitions. Word has length 155 [2024-11-08 19:10:15,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:10:15,165 INFO L471 AbstractCegarLoop]: Abstraction has 1966 states and 2450 transitions. [2024-11-08 19:10:15,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 34 states have (on average 3.764705882352941) internal successors, (128), 33 states have internal predecessors, (128), 5 states have call successors, (30), 5 states have call predecessors, (30), 5 states have return successors, (30), 3 states have call predecessors, (30), 5 states have call successors, (30) [2024-11-08 19:10:15,166 INFO L276 IsEmpty]: Start isEmpty. Operand 1966 states and 2450 transitions. [2024-11-08 19:10:15,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-08 19:10:15,167 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:10:15,167 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:10:15,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Forceful destruction successful, exit code 0 [2024-11-08 19:10:15,384 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2024-11-08 19:10:15,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:10:15,568 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:10:15,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:10:15,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1278653866, now seen corresponding path program 1 times [2024-11-08 19:10:15,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:10:15,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [782875160] [2024-11-08 19:10:15,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:10:15,570 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:10:15,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:10:15,571 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:10:15,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2024-11-08 19:10:16,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:16,016 INFO L255 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 19:10:16,018 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:10:16,048 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 326 proven. 0 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2024-11-08 19:10:16,048 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:10:16,048 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:10:16,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [782875160] [2024-11-08 19:10:16,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [782875160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:10:16,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:10:16,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 19:10:16,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241089081] [2024-11-08 19:10:16,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:10:16,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:10:16,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:10:16,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:10:16,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:10:16,050 INFO L87 Difference]: Start difference. First operand 1966 states and 2450 transitions. Second operand has 6 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-08 19:10:16,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:10:16,545 INFO L93 Difference]: Finished difference Result 3504 states and 4353 transitions. [2024-11-08 19:10:16,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 19:10:16,546 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 155 [2024-11-08 19:10:16,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:10:16,550 INFO L225 Difference]: With dead ends: 3504 [2024-11-08 19:10:16,550 INFO L226 Difference]: Without dead ends: 1567 [2024-11-08 19:10:16,553 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:10:16,553 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 1 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:10:16,553 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 702 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:10:16,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1567 states. [2024-11-08 19:10:16,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1567 to 1506. [2024-11-08 19:10:16,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1506 states, 1305 states have (on average 1.242145593869732) internal successors, (1621), 1308 states have internal predecessors, (1621), 126 states have call successors, (126), 74 states have call predecessors, (126), 74 states have return successors, (126), 123 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-08 19:10:16,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 1873 transitions. [2024-11-08 19:10:16,826 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 1873 transitions. Word has length 155 [2024-11-08 19:10:16,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:10:16,827 INFO L471 AbstractCegarLoop]: Abstraction has 1506 states and 1873 transitions. [2024-11-08 19:10:16,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-08 19:10:16,827 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 1873 transitions. [2024-11-08 19:10:16,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-08 19:10:16,829 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:10:16,829 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:10:16,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Forceful destruction successful, exit code 0 [2024-11-08 19:10:17,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:10:17,030 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:10:17,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:10:17,030 INFO L85 PathProgramCache]: Analyzing trace with hash 427609005, now seen corresponding path program 1 times [2024-11-08 19:10:17,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:10:17,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1661124646] [2024-11-08 19:10:17,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:10:17,031 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:10:17,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:10:17,032 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:10:17,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2024-11-08 19:10:17,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:17,543 INFO L255 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 19:10:17,545 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:10:18,132 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 31 [2024-11-08 19:10:18,237 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:10:18,238 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:10:18,238 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:10:18,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1661124646] [2024-11-08 19:10:18,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1661124646] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:10:18,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:10:18,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 19:10:18,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076321194] [2024-11-08 19:10:18,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:10:18,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 19:10:18,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:10:18,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 19:10:18,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-08 19:10:18,240 INFO L87 Difference]: Start difference. First operand 1506 states and 1873 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:10:21,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:10:21,267 INFO L93 Difference]: Finished difference Result 3054 states and 3822 transitions. [2024-11-08 19:10:21,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 19:10:21,268 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 156 [2024-11-08 19:10:21,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:10:21,272 INFO L225 Difference]: With dead ends: 3054 [2024-11-08 19:10:21,272 INFO L226 Difference]: Without dead ends: 1598 [2024-11-08 19:10:21,274 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:10:21,274 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 146 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-08 19:10:21,274 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 642 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-08 19:10:21,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1598 states. [2024-11-08 19:10:21,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1598 to 1526. [2024-11-08 19:10:21,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1526 states, 1325 states have (on average 1.2384905660377359) internal successors, (1641), 1328 states have internal predecessors, (1641), 126 states have call successors, (126), 74 states have call predecessors, (126), 74 states have return successors, (126), 123 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-08 19:10:21,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 1893 transitions. [2024-11-08 19:10:21,528 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 1893 transitions. Word has length 156 [2024-11-08 19:10:21,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:10:21,529 INFO L471 AbstractCegarLoop]: Abstraction has 1526 states and 1893 transitions. [2024-11-08 19:10:21,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:10:21,529 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 1893 transitions. [2024-11-08 19:10:21,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-08 19:10:21,530 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:10:21,530 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:10:21,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Forceful destruction successful, exit code 0 [2024-11-08 19:10:21,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:10:21,731 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:10:21,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:10:21,731 INFO L85 PathProgramCache]: Analyzing trace with hash -273455573, now seen corresponding path program 1 times [2024-11-08 19:10:21,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:10:21,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1246697662] [2024-11-08 19:10:21,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:10:21,732 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:10:21,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:10:21,733 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:10:21,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2024-11-08 19:10:22,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:22,271 INFO L255 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-08 19:10:22,274 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:10:22,355 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 19:10:23,098 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 34 [2024-11-08 19:10:23,189 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 158 treesize of output 76 [2024-11-08 19:10:23,783 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:10:23,783 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 278 treesize of output 98 [2024-11-08 19:10:23,897 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 308 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2024-11-08 19:10:23,897 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:10:24,549 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:10:24,550 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:10:24,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1246697662] [2024-11-08 19:10:24,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1246697662] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:10:24,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:10:24,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 16 [2024-11-08 19:10:24,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426671296] [2024-11-08 19:10:24,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:10:24,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 19:10:24,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:10:24,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 19:10:24,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-11-08 19:10:24,552 INFO L87 Difference]: Start difference. First operand 1526 states and 1893 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:10:28,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-08 19:10:28,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:10:28,538 INFO L93 Difference]: Finished difference Result 3526 states and 4345 transitions. [2024-11-08 19:10:28,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 19:10:28,539 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 156 [2024-11-08 19:10:28,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:10:28,546 INFO L225 Difference]: With dead ends: 3526 [2024-11-08 19:10:28,546 INFO L226 Difference]: Without dead ends: 2050 [2024-11-08 19:10:28,549 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 295 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2024-11-08 19:10:28,550 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 109 mSDsluCounter, 828 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:10:28,550 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 1015 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-08 19:10:28,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2050 states. [2024-11-08 19:10:28,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2050 to 1677. [2024-11-08 19:10:28,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1677 states, 1476 states have (on average 1.225609756097561) internal successors, (1809), 1479 states have internal predecessors, (1809), 126 states have call successors, (126), 74 states have call predecessors, (126), 74 states have return successors, (126), 123 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-08 19:10:28,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1677 states to 1677 states and 2061 transitions. [2024-11-08 19:10:28,839 INFO L78 Accepts]: Start accepts. Automaton has 1677 states and 2061 transitions. Word has length 156 [2024-11-08 19:10:28,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:10:28,840 INFO L471 AbstractCegarLoop]: Abstraction has 1677 states and 2061 transitions. [2024-11-08 19:10:28,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:10:28,840 INFO L276 IsEmpty]: Start isEmpty. Operand 1677 states and 2061 transitions. [2024-11-08 19:10:28,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-08 19:10:28,842 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:10:28,842 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:10:28,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Forceful destruction successful, exit code 0 [2024-11-08 19:10:29,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:10:29,043 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:10:29,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:10:29,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1170443918, now seen corresponding path program 1 times [2024-11-08 19:10:29,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:10:29,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [243220570] [2024-11-08 19:10:29,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:10:29,044 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:10:29,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:10:29,045 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:10:29,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2024-11-08 19:10:29,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:29,516 INFO L255 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-08 19:10:29,520 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:10:30,544 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:10:30,544 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 140 treesize of output 77 [2024-11-08 19:10:30,897 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 308 proven. 0 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2024-11-08 19:10:30,897 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:10:30,898 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:10:30,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [243220570] [2024-11-08 19:10:30,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [243220570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:10:30,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:10:30,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-08 19:10:30,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698098232] [2024-11-08 19:10:30,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:10:30,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 19:10:30,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:10:30,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 19:10:30,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2024-11-08 19:10:30,900 INFO L87 Difference]: Start difference. First operand 1677 states and 2061 transitions. Second operand has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 11 states have internal predecessors, (73), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 19:10:35,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 19:10:38,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:10:38,891 INFO L93 Difference]: Finished difference Result 4150 states and 5089 transitions. [2024-11-08 19:10:38,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 19:10:38,892 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 11 states have internal predecessors, (73), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 157 [2024-11-08 19:10:38,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:10:38,898 INFO L225 Difference]: With dead ends: 4150 [2024-11-08 19:10:38,898 INFO L226 Difference]: Without dead ends: 2519 [2024-11-08 19:10:38,900 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 19:10:38,901 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 508 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 763 mSolverCounterSat, 28 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 508 SdHoareTripleChecker+Valid, 993 SdHoareTripleChecker+Invalid, 792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 763 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2024-11-08 19:10:38,901 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [508 Valid, 993 Invalid, 792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 763 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2024-11-08 19:10:38,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2519 states. [2024-11-08 19:10:39,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2519 to 1708. [2024-11-08 19:10:39,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1708 states, 1507 states have (on average 1.2262773722627738) internal successors, (1848), 1510 states have internal predecessors, (1848), 126 states have call successors, (126), 74 states have call predecessors, (126), 74 states have return successors, (126), 123 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-08 19:10:39,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1708 states to 1708 states and 2100 transitions. [2024-11-08 19:10:39,228 INFO L78 Accepts]: Start accepts. Automaton has 1708 states and 2100 transitions. Word has length 157 [2024-11-08 19:10:39,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:10:39,228 INFO L471 AbstractCegarLoop]: Abstraction has 1708 states and 2100 transitions. [2024-11-08 19:10:39,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 11 states have internal predecessors, (73), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 19:10:39,228 INFO L276 IsEmpty]: Start isEmpty. Operand 1708 states and 2100 transitions. [2024-11-08 19:10:39,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-08 19:10:39,230 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:10:39,230 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:10:39,237 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (51)] Forceful destruction successful, exit code 0 [2024-11-08 19:10:39,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:10:39,430 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:10:39,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:10:39,431 INFO L85 PathProgramCache]: Analyzing trace with hash -397370128, now seen corresponding path program 1 times [2024-11-08 19:10:39,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:10:39,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2106946096] [2024-11-08 19:10:39,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:10:39,432 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:10:39,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:10:39,433 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:10:39,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2024-11-08 19:10:39,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:39,902 INFO L255 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-08 19:10:39,906 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:10:40,357 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 55 [2024-11-08 19:10:40,539 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 308 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2024-11-08 19:10:40,539 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:10:41,052 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:10:41,053 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:10:41,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2106946096] [2024-11-08 19:10:41,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2106946096] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:10:41,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:10:41,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [9] total 18 [2024-11-08 19:10:41,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120963184] [2024-11-08 19:10:41,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:10:41,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 19:10:41,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:10:41,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 19:10:41,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2024-11-08 19:10:41,054 INFO L87 Difference]: Start difference. First operand 1708 states and 2100 transitions. Second operand has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:10:43,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 19:10:44,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:10:44,766 INFO L93 Difference]: Finished difference Result 3823 states and 4694 transitions. [2024-11-08 19:10:44,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 19:10:44,768 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 157 [2024-11-08 19:10:44,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:10:44,773 INFO L225 Difference]: With dead ends: 3823 [2024-11-08 19:10:44,773 INFO L226 Difference]: Without dead ends: 2132 [2024-11-08 19:10:44,775 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=88, Invalid=464, Unknown=0, NotChecked=0, Total=552 [2024-11-08 19:10:44,775 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 162 mSDsluCounter, 1120 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 1313 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:10:44,775 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 1313 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-08 19:10:44,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2132 states. [2024-11-08 19:10:45,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2132 to 1680. [2024-11-08 19:10:45,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1680 states, 1479 states have (on average 1.2265043948613927) internal successors, (1814), 1482 states have internal predecessors, (1814), 126 states have call successors, (126), 74 states have call predecessors, (126), 74 states have return successors, (126), 123 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-08 19:10:45,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1680 states to 1680 states and 2066 transitions. [2024-11-08 19:10:45,109 INFO L78 Accepts]: Start accepts. Automaton has 1680 states and 2066 transitions. Word has length 157 [2024-11-08 19:10:45,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:10:45,110 INFO L471 AbstractCegarLoop]: Abstraction has 1680 states and 2066 transitions. [2024-11-08 19:10:45,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:10:45,110 INFO L276 IsEmpty]: Start isEmpty. Operand 1680 states and 2066 transitions. [2024-11-08 19:10:45,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-08 19:10:45,111 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:10:45,111 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:10:45,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (52)] Forceful destruction successful, exit code 0 [2024-11-08 19:10:45,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:10:45,312 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:10:45,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:10:45,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1523472581, now seen corresponding path program 1 times [2024-11-08 19:10:45,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:10:45,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [520345967] [2024-11-08 19:10:45,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:10:45,313 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:10:45,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:10:45,314 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:10:45,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (53)] Waiting until timeout for monitored process [2024-11-08 19:10:45,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:45,815 INFO L255 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-08 19:10:45,818 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:10:45,885 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 19:10:46,039 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 20 [2024-11-08 19:10:47,531 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:10:47,532 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 163 treesize of output 88 [2024-11-08 19:10:47,815 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:10:47,815 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 171 treesize of output 63 [2024-11-08 19:10:47,938 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 332 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-08 19:10:47,938 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:10:47,938 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:10:47,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [520345967] [2024-11-08 19:10:47,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [520345967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:10:47,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:10:47,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 19:10:47,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963063837] [2024-11-08 19:10:47,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:10:47,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-08 19:10:47,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:10:47,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-08 19:10:47,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-08 19:10:47,940 INFO L87 Difference]: Start difference. First operand 1680 states and 2066 transitions. Second operand has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 12 states have internal predecessors, (76), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-08 19:10:53,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:10:53,163 INFO L93 Difference]: Finished difference Result 4374 states and 5374 transitions. [2024-11-08 19:10:53,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 19:10:53,164 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 12 states have internal predecessors, (76), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 157 [2024-11-08 19:10:53,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:10:53,175 INFO L225 Difference]: With dead ends: 4374 [2024-11-08 19:10:53,175 INFO L226 Difference]: Without dead ends: 2744 [2024-11-08 19:10:53,177 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2024-11-08 19:10:53,178 INFO L432 NwaCegarLoop]: 277 mSDtfsCounter, 593 mSDsluCounter, 1500 mSDsCounter, 0 mSdLazyCounter, 1357 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 593 SdHoareTripleChecker+Valid, 1777 SdHoareTripleChecker+Invalid, 1401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:10:53,178 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [593 Valid, 1777 Invalid, 1401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1357 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-08 19:10:53,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2744 states. [2024-11-08 19:10:53,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2744 to 1692. [2024-11-08 19:10:53,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1692 states, 1491 states have (on average 1.227364185110664) internal successors, (1830), 1494 states have internal predecessors, (1830), 126 states have call successors, (126), 74 states have call predecessors, (126), 74 states have return successors, (126), 123 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-08 19:10:53,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1692 states to 1692 states and 2082 transitions. [2024-11-08 19:10:53,587 INFO L78 Accepts]: Start accepts. Automaton has 1692 states and 2082 transitions. Word has length 157 [2024-11-08 19:10:53,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:10:53,588 INFO L471 AbstractCegarLoop]: Abstraction has 1692 states and 2082 transitions. [2024-11-08 19:10:53,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 12 states have internal predecessors, (76), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-08 19:10:53,588 INFO L276 IsEmpty]: Start isEmpty. Operand 1692 states and 2082 transitions. [2024-11-08 19:10:53,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-08 19:10:53,589 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:10:53,589 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:10:53,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (53)] Forceful destruction successful, exit code 0 [2024-11-08 19:10:53,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:10:53,790 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:10:53,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:10:53,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1812160901, now seen corresponding path program 1 times [2024-11-08 19:10:53,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:10:53,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [88197839] [2024-11-08 19:10:53,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:10:53,791 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:10:53,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:10:53,792 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:10:53,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (54)] Waiting until timeout for monitored process [2024-11-08 19:10:54,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:54,375 INFO L255 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-08 19:10:54,380 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:10:54,466 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-08 19:10:54,777 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 32 [2024-11-08 19:10:56,122 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 134 treesize of output 74 [2024-11-08 19:10:56,426 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-08 19:10:56,427 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:10:56,427 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:10:56,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [88197839] [2024-11-08 19:10:56,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [88197839] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:10:56,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:10:56,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 19:10:56,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637133200] [2024-11-08 19:10:56,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:10:56,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 19:10:56,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:10:56,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 19:10:56,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:10:56,429 INFO L87 Difference]: Start difference. First operand 1692 states and 2082 transitions. Second operand has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 10 states have internal predecessors, (73), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 19:10:59,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:10:59,598 INFO L93 Difference]: Finished difference Result 4044 states and 4977 transitions. [2024-11-08 19:10:59,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 19:10:59,599 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 10 states have internal predecessors, (73), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 157 [2024-11-08 19:10:59,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:10:59,604 INFO L225 Difference]: With dead ends: 4044 [2024-11-08 19:10:59,604 INFO L226 Difference]: Without dead ends: 2402 [2024-11-08 19:10:59,605 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-11-08 19:10:59,605 INFO L432 NwaCegarLoop]: 203 mSDtfsCounter, 316 mSDsluCounter, 899 mSDsCounter, 0 mSdLazyCounter, 895 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 1102 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-08 19:10:59,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 1102 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 895 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-08 19:10:59,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2402 states. [2024-11-08 19:11:00,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2402 to 1680. [2024-11-08 19:11:00,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1680 states, 1479 states have (on average 1.2265043948613927) internal successors, (1814), 1482 states have internal predecessors, (1814), 126 states have call successors, (126), 74 states have call predecessors, (126), 74 states have return successors, (126), 123 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-08 19:11:00,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1680 states to 1680 states and 2066 transitions. [2024-11-08 19:11:00,087 INFO L78 Accepts]: Start accepts. Automaton has 1680 states and 2066 transitions. Word has length 157 [2024-11-08 19:11:00,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:11:00,088 INFO L471 AbstractCegarLoop]: Abstraction has 1680 states and 2066 transitions. [2024-11-08 19:11:00,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 10 states have internal predecessors, (73), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 19:11:00,088 INFO L276 IsEmpty]: Start isEmpty. Operand 1680 states and 2066 transitions. [2024-11-08 19:11:00,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-08 19:11:00,090 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:11:00,090 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:11:00,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (54)] Forceful destruction successful, exit code 0 [2024-11-08 19:11:00,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:11:00,291 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:11:00,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:11:00,292 INFO L85 PathProgramCache]: Analyzing trace with hash -943062864, now seen corresponding path program 1 times [2024-11-08 19:11:00,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:11:00,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2096752345] [2024-11-08 19:11:00,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:11:00,292 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:11:00,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:11:00,293 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:11:00,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (55)] Waiting until timeout for monitored process [2024-11-08 19:11:00,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:11:00,886 INFO L255 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-08 19:11:00,889 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:11:00,895 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-08 19:11:01,198 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 34 [2024-11-08 19:11:02,897 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:11:02,897 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 46 [2024-11-08 19:11:03,628 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:11:03,628 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 102 treesize of output 48 [2024-11-08 19:11:03,796 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 160 proven. 84 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2024-11-08 19:11:03,796 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:11:04,206 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:11:04,206 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:11:04,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2096752345] [2024-11-08 19:11:04,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2096752345] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:11:04,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:11:04,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [17] total 21 [2024-11-08 19:11:04,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075334577] [2024-11-08 19:11:04,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:11:04,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 19:11:04,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:11:04,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 19:11:04,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=356, Unknown=0, NotChecked=0, Total=420 [2024-11-08 19:11:04,209 INFO L87 Difference]: Start difference. First operand 1680 states and 2066 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:11:04,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:11:04,855 INFO L93 Difference]: Finished difference Result 2615 states and 3258 transitions. [2024-11-08 19:11:04,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 19:11:04,856 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 158 [2024-11-08 19:11:04,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:11:04,861 INFO L225 Difference]: With dead ends: 2615 [2024-11-08 19:11:04,861 INFO L226 Difference]: Without dead ends: 2613 [2024-11-08 19:11:04,861 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=80, Invalid=520, Unknown=0, NotChecked=0, Total=600 [2024-11-08 19:11:04,862 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 67 mSDsluCounter, 755 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 909 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:11:04,862 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 909 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:11:04,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2613 states. [2024-11-08 19:11:05,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2613 to 2531. [2024-11-08 19:11:05,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2531 states, 2330 states have (on average 1.2446351931330473) internal successors, (2900), 2333 states have internal predecessors, (2900), 126 states have call successors, (126), 74 states have call predecessors, (126), 74 states have return successors, (126), 123 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-08 19:11:05,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2531 states to 2531 states and 3152 transitions. [2024-11-08 19:11:05,166 INFO L78 Accepts]: Start accepts. Automaton has 2531 states and 3152 transitions. Word has length 158 [2024-11-08 19:11:05,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:11:05,166 INFO L471 AbstractCegarLoop]: Abstraction has 2531 states and 3152 transitions. [2024-11-08 19:11:05,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:11:05,166 INFO L276 IsEmpty]: Start isEmpty. Operand 2531 states and 3152 transitions. [2024-11-08 19:11:05,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-08 19:11:05,168 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:11:05,168 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:11:05,178 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (55)] Ended with exit code 0 [2024-11-08 19:11:05,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:11:05,369 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:11:05,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:11:05,369 INFO L85 PathProgramCache]: Analyzing trace with hash 629414533, now seen corresponding path program 1 times [2024-11-08 19:11:05,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:11:05,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [604180644] [2024-11-08 19:11:05,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:11:05,370 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:11:05,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:11:05,371 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:11:05,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (56)] Waiting until timeout for monitored process [2024-11-08 19:11:05,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:11:05,955 INFO L255 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-08 19:11:05,958 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:11:06,052 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 19:11:07,165 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:11:07,165 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 170 treesize of output 89 [2024-11-08 19:11:07,344 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:11:07,344 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 170 treesize of output 80 [2024-11-08 19:11:08,304 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:11:08,304 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 205 treesize of output 73 [2024-11-08 19:11:08,442 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 308 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2024-11-08 19:11:08,442 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:11:10,244 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:11:10,244 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:11:10,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [604180644] [2024-11-08 19:11:10,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [604180644] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:11:10,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:11:10,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [17] total 29 [2024-11-08 19:11:10,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780734297] [2024-11-08 19:11:10,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:11:10,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-08 19:11:10,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:11:10,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-08 19:11:10,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=654, Unknown=0, NotChecked=0, Total=812 [2024-11-08 19:11:10,246 INFO L87 Difference]: Start difference. First operand 2531 states and 3152 transitions. Second operand has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:11:17,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:11:17,420 INFO L93 Difference]: Finished difference Result 5529 states and 6901 transitions. [2024-11-08 19:11:17,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 19:11:17,422 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 158 [2024-11-08 19:11:17,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:11:17,428 INFO L225 Difference]: With dead ends: 5529 [2024-11-08 19:11:17,428 INFO L226 Difference]: Without dead ends: 3048 [2024-11-08 19:11:17,430 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=316, Invalid=1090, Unknown=0, NotChecked=0, Total=1406 [2024-11-08 19:11:17,431 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 383 mSDsluCounter, 1256 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 27 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 1422 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:11:17,431 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 1422 Invalid, 712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 682 Invalid, 3 Unknown, 0 Unchecked, 5.3s Time] [2024-11-08 19:11:17,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3048 states. [2024-11-08 19:11:17,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3048 to 2661. [2024-11-08 19:11:17,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2661 states, 2460 states have (on average 1.2447154471544715) internal successors, (3062), 2463 states have internal predecessors, (3062), 126 states have call successors, (126), 74 states have call predecessors, (126), 74 states have return successors, (126), 123 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-08 19:11:17,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2661 states to 2661 states and 3314 transitions. [2024-11-08 19:11:17,735 INFO L78 Accepts]: Start accepts. Automaton has 2661 states and 3314 transitions. Word has length 158 [2024-11-08 19:11:17,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:11:17,735 INFO L471 AbstractCegarLoop]: Abstraction has 2661 states and 3314 transitions. [2024-11-08 19:11:17,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:11:17,735 INFO L276 IsEmpty]: Start isEmpty. Operand 2661 states and 3314 transitions. [2024-11-08 19:11:17,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-08 19:11:17,737 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:11:17,737 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:11:17,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (56)] Forceful destruction successful, exit code 0 [2024-11-08 19:11:17,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:11:17,938 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:11:17,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:11:17,938 INFO L85 PathProgramCache]: Analyzing trace with hash -283624039, now seen corresponding path program 1 times [2024-11-08 19:11:17,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:11:17,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1012259879] [2024-11-08 19:11:17,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:11:17,939 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:11:17,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:11:17,942 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:11:17,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (57)] Waiting until timeout for monitored process [2024-11-08 19:11:18,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:11:18,435 INFO L255 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 19:11:18,437 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:11:18,696 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:11:18,697 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 106 treesize of output 34 [2024-11-08 19:11:18,780 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:11:18,780 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:11:18,780 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:11:18,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1012259879] [2024-11-08 19:11:18,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1012259879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:11:18,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:11:18,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 19:11:18,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106153012] [2024-11-08 19:11:18,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:11:18,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 19:11:18,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:11:18,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 19:11:18,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 19:11:18,782 INFO L87 Difference]: Start difference. First operand 2661 states and 3314 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:11:20,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:11:20,167 INFO L93 Difference]: Finished difference Result 5364 states and 6704 transitions. [2024-11-08 19:11:20,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 19:11:20,168 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 158 [2024-11-08 19:11:20,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:11:20,175 INFO L225 Difference]: With dead ends: 5364 [2024-11-08 19:11:20,175 INFO L226 Difference]: Without dead ends: 2753 [2024-11-08 19:11:20,177 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:11:20,178 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 8 mSDsluCounter, 913 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1080 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:11:20,178 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1080 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 19:11:20,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2753 states. [2024-11-08 19:11:20,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2753 to 2713. [2024-11-08 19:11:20,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2713 states, 2512 states have (on average 1.2444267515923566) internal successors, (3126), 2515 states have internal predecessors, (3126), 126 states have call successors, (126), 74 states have call predecessors, (126), 74 states have return successors, (126), 123 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-08 19:11:20,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2713 states to 2713 states and 3378 transitions. [2024-11-08 19:11:20,506 INFO L78 Accepts]: Start accepts. Automaton has 2713 states and 3378 transitions. Word has length 158 [2024-11-08 19:11:20,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:11:20,506 INFO L471 AbstractCegarLoop]: Abstraction has 2713 states and 3378 transitions. [2024-11-08 19:11:20,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:11:20,506 INFO L276 IsEmpty]: Start isEmpty. Operand 2713 states and 3378 transitions. [2024-11-08 19:11:20,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-08 19:11:20,509 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:11:20,510 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:11:20,522 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (57)] Ended with exit code 0 [2024-11-08 19:11:20,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:11:20,710 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:11:20,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:11:20,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1736075130, now seen corresponding path program 1 times [2024-11-08 19:11:20,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:11:20,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1621816668] [2024-11-08 19:11:20,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:11:20,712 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:11:20,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:11:20,713 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:11:20,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (58)] Waiting until timeout for monitored process [2024-11-08 19:11:21,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:11:21,218 INFO L255 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-08 19:11:21,221 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:11:22,138 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:11:22,139 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 176 treesize of output 62 [2024-11-08 19:11:22,273 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:11:22,273 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:11:22,273 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:11:22,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1621816668] [2024-11-08 19:11:22,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1621816668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:11:22,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:11:22,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 19:11:22,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189471026] [2024-11-08 19:11:22,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:11:22,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 19:11:22,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:11:22,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 19:11:22,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-08 19:11:22,275 INFO L87 Difference]: Start difference. First operand 2713 states and 3378 transitions. Second operand has 12 states, 12 states have (on average 6.0) internal successors, (72), 12 states have internal predecessors, (72), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:11:25,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:11:25,544 INFO L93 Difference]: Finished difference Result 5777 states and 7197 transitions. [2024-11-08 19:11:25,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 19:11:25,545 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.0) internal successors, (72), 12 states have internal predecessors, (72), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 159 [2024-11-08 19:11:25,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:11:25,555 INFO L225 Difference]: With dead ends: 5777 [2024-11-08 19:11:25,555 INFO L226 Difference]: Without dead ends: 3112 [2024-11-08 19:11:25,558 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-08 19:11:25,559 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 94 mSDsluCounter, 1004 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-08 19:11:25,559 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 1192 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-08 19:11:25,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3112 states. [2024-11-08 19:11:25,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3112 to 2846. [2024-11-08 19:11:25,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2846 states, 2645 states have (on average 1.2415879017013232) internal successors, (3284), 2648 states have internal predecessors, (3284), 126 states have call successors, (126), 74 states have call predecessors, (126), 74 states have return successors, (126), 123 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-08 19:11:25,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2846 states to 2846 states and 3536 transitions. [2024-11-08 19:11:25,896 INFO L78 Accepts]: Start accepts. Automaton has 2846 states and 3536 transitions. Word has length 159 [2024-11-08 19:11:25,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:11:25,897 INFO L471 AbstractCegarLoop]: Abstraction has 2846 states and 3536 transitions. [2024-11-08 19:11:25,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.0) internal successors, (72), 12 states have internal predecessors, (72), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:11:25,897 INFO L276 IsEmpty]: Start isEmpty. Operand 2846 states and 3536 transitions. [2024-11-08 19:11:25,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-08 19:11:25,900 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:11:25,900 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:11:25,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (58)] Forceful destruction successful, exit code 0 [2024-11-08 19:11:26,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:11:26,100 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:11:26,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:11:26,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1310546600, now seen corresponding path program 1 times [2024-11-08 19:11:26,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:11:26,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [85168556] [2024-11-08 19:11:26,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:11:26,102 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:11:26,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:11:26,103 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:11:26,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (59)] Waiting until timeout for monitored process [2024-11-08 19:11:26,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:11:26,624 INFO L255 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-08 19:11:26,628 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:11:27,732 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:11:27,732 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 140 treesize of output 77 [2024-11-08 19:11:28,392 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 308 proven. 0 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2024-11-08 19:11:28,392 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:11:28,392 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:11:28,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [85168556] [2024-11-08 19:11:28,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [85168556] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:11:28,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:11:28,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-08 19:11:28,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495657685] [2024-11-08 19:11:28,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:11:28,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 19:11:28,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:11:28,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 19:11:28,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-08 19:11:28,394 INFO L87 Difference]: Start difference. First operand 2846 states and 3536 transitions. Second operand has 12 states, 12 states have (on average 6.25) internal successors, (75), 11 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 19:11:31,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:11:31,760 INFO L93 Difference]: Finished difference Result 6730 states and 8322 transitions. [2024-11-08 19:11:31,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 19:11:31,761 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.25) internal successors, (75), 11 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 159 [2024-11-08 19:11:31,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:11:31,767 INFO L225 Difference]: With dead ends: 6730 [2024-11-08 19:11:31,767 INFO L226 Difference]: Without dead ends: 3934 [2024-11-08 19:11:31,770 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2024-11-08 19:11:31,770 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 313 mSDsluCounter, 989 mSDsCounter, 0 mSdLazyCounter, 995 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 1002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-08 19:11:31,770 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 1197 Invalid, 1002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 995 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-08 19:11:31,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3934 states. [2024-11-08 19:11:32,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3934 to 2882. [2024-11-08 19:11:32,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2882 states, 2681 states have (on average 1.23834390152928) internal successors, (3320), 2684 states have internal predecessors, (3320), 126 states have call successors, (126), 74 states have call predecessors, (126), 74 states have return successors, (126), 123 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-08 19:11:32,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2882 states to 2882 states and 3572 transitions. [2024-11-08 19:11:32,148 INFO L78 Accepts]: Start accepts. Automaton has 2882 states and 3572 transitions. Word has length 159 [2024-11-08 19:11:32,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:11:32,148 INFO L471 AbstractCegarLoop]: Abstraction has 2882 states and 3572 transitions. [2024-11-08 19:11:32,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.25) internal successors, (75), 11 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 19:11:32,148 INFO L276 IsEmpty]: Start isEmpty. Operand 2882 states and 3572 transitions. [2024-11-08 19:11:32,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-08 19:11:32,150 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:11:32,150 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:11:32,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (59)] Forceful destruction successful, exit code 0 [2024-11-08 19:11:32,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:11:32,351 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:11:32,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:11:32,352 INFO L85 PathProgramCache]: Analyzing trace with hash -466876173, now seen corresponding path program 1 times [2024-11-08 19:11:32,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:11:32,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1430338420] [2024-11-08 19:11:32,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:11:32,352 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:11:32,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:11:32,353 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:11:32,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (60)] Waiting until timeout for monitored process [2024-11-08 19:11:32,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:11:32,963 INFO L255 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-08 19:11:32,967 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:11:34,649 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:11:34,650 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 170 treesize of output 89 [2024-11-08 19:11:34,909 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:11:34,909 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 178 treesize of output 64 [2024-11-08 19:11:35,023 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 308 proven. 0 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2024-11-08 19:11:35,023 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:11:35,023 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:11:35,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1430338420] [2024-11-08 19:11:35,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1430338420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:11:35,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:11:35,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 19:11:35,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384427557] [2024-11-08 19:11:35,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:11:35,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-08 19:11:35,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:11:35,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-08 19:11:35,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-11-08 19:11:35,025 INFO L87 Difference]: Start difference. First operand 2882 states and 3572 transitions. Second operand has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 12 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 19:11:39,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:11:39,394 INFO L93 Difference]: Finished difference Result 6965 states and 8591 transitions. [2024-11-08 19:11:39,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 19:11:39,395 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 12 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 159 [2024-11-08 19:11:39,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:11:39,402 INFO L225 Difference]: With dead ends: 6965 [2024-11-08 19:11:39,402 INFO L226 Difference]: Without dead ends: 4109 [2024-11-08 19:11:39,405 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2024-11-08 19:11:39,405 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 546 mSDsluCounter, 1032 mSDsCounter, 0 mSdLazyCounter, 1006 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 1187 SdHoareTripleChecker+Invalid, 1046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-08 19:11:39,405 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [546 Valid, 1187 Invalid, 1046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1006 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-08 19:11:39,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4109 states. [2024-11-08 19:11:39,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4109 to 2856. [2024-11-08 19:11:39,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2856 states, 2655 states have (on average 1.2376647834274952) internal successors, (3286), 2658 states have internal predecessors, (3286), 126 states have call successors, (126), 74 states have call predecessors, (126), 74 states have return successors, (126), 123 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-08 19:11:39,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2856 states to 2856 states and 3538 transitions. [2024-11-08 19:11:39,730 INFO L78 Accepts]: Start accepts. Automaton has 2856 states and 3538 transitions. Word has length 159 [2024-11-08 19:11:39,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:11:39,731 INFO L471 AbstractCegarLoop]: Abstraction has 2856 states and 3538 transitions. [2024-11-08 19:11:39,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 12 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 19:11:39,731 INFO L276 IsEmpty]: Start isEmpty. Operand 2856 states and 3538 transitions. [2024-11-08 19:11:39,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-08 19:11:39,733 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:11:39,733 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:11:39,740 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (60)] Ended with exit code 0 [2024-11-08 19:11:39,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:11:39,934 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:11:39,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:11:39,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1478984115, now seen corresponding path program 1 times [2024-11-08 19:11:39,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:11:39,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1651293675] [2024-11-08 19:11:39,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:11:39,935 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:11:39,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:11:39,936 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:11:39,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (61)] Waiting until timeout for monitored process [2024-11-08 19:11:40,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:11:40,432 INFO L255 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-08 19:11:40,437 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:11:42,236 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:11:42,237 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 170 treesize of output 89 [2024-11-08 19:11:42,470 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 308 proven. 0 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2024-11-08 19:11:42,471 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:11:42,471 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:11:42,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1651293675] [2024-11-08 19:11:42,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1651293675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:11:42,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:11:42,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-08 19:11:42,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119960943] [2024-11-08 19:11:42,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:11:42,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 19:11:42,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:11:42,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 19:11:42,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-08 19:11:42,472 INFO L87 Difference]: Start difference. First operand 2856 states and 3538 transitions. Second operand has 12 states, 12 states have (on average 6.25) internal successors, (75), 11 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 19:11:45,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:11:45,963 INFO L93 Difference]: Finished difference Result 6846 states and 8439 transitions. [2024-11-08 19:11:45,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 19:11:45,964 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.25) internal successors, (75), 11 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 159 [2024-11-08 19:11:45,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:11:45,971 INFO L225 Difference]: With dead ends: 6846 [2024-11-08 19:11:45,971 INFO L226 Difference]: Without dead ends: 4040 [2024-11-08 19:11:45,973 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2024-11-08 19:11:45,974 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 586 mSDsluCounter, 799 mSDsCounter, 0 mSdLazyCounter, 837 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 586 SdHoareTripleChecker+Valid, 957 SdHoareTripleChecker+Invalid, 889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-08 19:11:45,974 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [586 Valid, 957 Invalid, 889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 837 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-08 19:11:45,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4040 states. [2024-11-08 19:11:46,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4040 to 2844. [2024-11-08 19:11:46,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2844 states, 2643 states have (on average 1.2357169882709043) internal successors, (3266), 2646 states have internal predecessors, (3266), 126 states have call successors, (126), 74 states have call predecessors, (126), 74 states have return successors, (126), 123 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-08 19:11:46,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2844 states to 2844 states and 3518 transitions. [2024-11-08 19:11:46,371 INFO L78 Accepts]: Start accepts. Automaton has 2844 states and 3518 transitions. Word has length 159 [2024-11-08 19:11:46,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:11:46,371 INFO L471 AbstractCegarLoop]: Abstraction has 2844 states and 3518 transitions. [2024-11-08 19:11:46,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.25) internal successors, (75), 11 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 19:11:46,371 INFO L276 IsEmpty]: Start isEmpty. Operand 2844 states and 3518 transitions. [2024-11-08 19:11:46,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-08 19:11:46,373 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:11:46,374 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:11:46,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (61)] Forceful destruction successful, exit code 0 [2024-11-08 19:11:46,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:11:46,574 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:11:46,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:11:46,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1462470037, now seen corresponding path program 1 times [2024-11-08 19:11:46,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:11:46,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1637232364] [2024-11-08 19:11:46,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:11:46,575 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:11:46,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:11:46,576 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:11:46,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (62)] Waiting until timeout for monitored process [2024-11-08 19:11:47,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:11:47,114 INFO L255 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-08 19:11:47,118 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:11:48,599 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 67 [2024-11-08 19:11:48,782 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:11:48,782 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 139 treesize of output 49 [2024-11-08 19:11:48,871 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 308 proven. 0 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2024-11-08 19:11:48,872 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:11:48,872 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:11:48,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1637232364] [2024-11-08 19:11:48,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1637232364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:11:48,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:11:48,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 19:11:48,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994788144] [2024-11-08 19:11:48,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:11:48,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 19:11:48,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:11:48,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 19:11:48,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:11:48,874 INFO L87 Difference]: Start difference. First operand 2844 states and 3518 transitions. Second operand has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 19:11:52,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:11:52,279 INFO L93 Difference]: Finished difference Result 6651 states and 8190 transitions. [2024-11-08 19:11:52,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 19:11:52,280 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 159 [2024-11-08 19:11:52,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:11:52,287 INFO L225 Difference]: With dead ends: 6651 [2024-11-08 19:11:52,287 INFO L226 Difference]: Without dead ends: 3857 [2024-11-08 19:11:52,289 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2024-11-08 19:11:52,290 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 347 mSDsluCounter, 1103 mSDsCounter, 0 mSdLazyCounter, 1008 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1314 SdHoareTripleChecker+Invalid, 1017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-08 19:11:52,290 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 1314 Invalid, 1017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1008 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-08 19:11:52,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3857 states. [2024-11-08 19:11:52,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3857 to 2884. [2024-11-08 19:11:52,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2884 states, 2683 states have (on average 1.235184494968319) internal successors, (3314), 2686 states have internal predecessors, (3314), 126 states have call successors, (126), 74 states have call predecessors, (126), 74 states have return successors, (126), 123 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-08 19:11:52,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2884 states to 2884 states and 3566 transitions. [2024-11-08 19:11:52,674 INFO L78 Accepts]: Start accepts. Automaton has 2884 states and 3566 transitions. Word has length 159 [2024-11-08 19:11:52,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:11:52,675 INFO L471 AbstractCegarLoop]: Abstraction has 2884 states and 3566 transitions. [2024-11-08 19:11:52,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 19:11:52,675 INFO L276 IsEmpty]: Start isEmpty. Operand 2884 states and 3566 transitions. [2024-11-08 19:11:52,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-08 19:11:52,678 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:11:52,678 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:11:52,685 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (62)] Ended with exit code 0 [2024-11-08 19:11:52,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:11:52,879 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:11:52,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:11:52,879 INFO L85 PathProgramCache]: Analyzing trace with hash -886636971, now seen corresponding path program 1 times [2024-11-08 19:11:52,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:11:52,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [191774407] [2024-11-08 19:11:52,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:11:52,880 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:11:52,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:11:52,881 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:11:52,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (63)] Waiting until timeout for monitored process [2024-11-08 19:11:53,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:11:53,391 INFO L255 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-08 19:11:53,394 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:11:54,836 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 67 [2024-11-08 19:11:55,096 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:11:55,096 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 184 treesize of output 70 [2024-11-08 19:11:55,203 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 308 proven. 0 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2024-11-08 19:11:55,203 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:11:55,203 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:11:55,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [191774407] [2024-11-08 19:11:55,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [191774407] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:11:55,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:11:55,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-08 19:11:55,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729773406] [2024-11-08 19:11:55,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:11:55,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 19:11:55,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:11:55,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 19:11:55,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-08 19:11:55,205 INFO L87 Difference]: Start difference. First operand 2884 states and 3566 transitions. Second operand has 12 states, 12 states have (on average 6.25) internal successors, (75), 11 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 19:11:58,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 19:12:00,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:12:00,298 INFO L93 Difference]: Finished difference Result 6569 states and 8080 transitions. [2024-11-08 19:12:00,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 19:12:00,299 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.25) internal successors, (75), 11 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 159 [2024-11-08 19:12:00,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:12:00,306 INFO L225 Difference]: With dead ends: 6569 [2024-11-08 19:12:00,306 INFO L226 Difference]: Without dead ends: 3735 [2024-11-08 19:12:00,308 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-08 19:12:00,309 INFO L432 NwaCegarLoop]: 212 mSDtfsCounter, 423 mSDsluCounter, 1142 mSDsCounter, 0 mSdLazyCounter, 1023 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 1354 SdHoareTripleChecker+Invalid, 1031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:12:00,309 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 1354 Invalid, 1031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1023 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-08 19:12:00,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3735 states. [2024-11-08 19:12:00,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3735 to 2867. [2024-11-08 19:12:00,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2867 states, 2666 states have (on average 1.2348087021755438) internal successors, (3292), 2669 states have internal predecessors, (3292), 126 states have call successors, (126), 74 states have call predecessors, (126), 74 states have return successors, (126), 123 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-08 19:12:00,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2867 states to 2867 states and 3544 transitions. [2024-11-08 19:12:00,746 INFO L78 Accepts]: Start accepts. Automaton has 2867 states and 3544 transitions. Word has length 159 [2024-11-08 19:12:00,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:12:00,746 INFO L471 AbstractCegarLoop]: Abstraction has 2867 states and 3544 transitions. [2024-11-08 19:12:00,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.25) internal successors, (75), 11 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 19:12:00,746 INFO L276 IsEmpty]: Start isEmpty. Operand 2867 states and 3544 transitions. [2024-11-08 19:12:00,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-08 19:12:00,748 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:12:00,748 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:12:00,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (63)] Forceful destruction successful, exit code 0 [2024-11-08 19:12:00,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:12:00,949 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:12:00,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:12:00,949 INFO L85 PathProgramCache]: Analyzing trace with hash -931495649, now seen corresponding path program 1 times [2024-11-08 19:12:00,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:12:00,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [248221899] [2024-11-08 19:12:00,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:12:00,950 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:12:00,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:12:00,951 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:12:00,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (64)] Waiting until timeout for monitored process [2024-11-08 19:12:01,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:12:01,509 INFO L255 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-08 19:12:01,513 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:12:01,597 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 19:12:02,471 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:12:02,471 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 139 treesize of output 76 [2024-11-08 19:12:02,886 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:12:02,887 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 170 treesize of output 62 [2024-11-08 19:12:03,025 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 308 proven. 0 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2024-11-08 19:12:03,026 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:12:03,026 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:12:03,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [248221899] [2024-11-08 19:12:03,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [248221899] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:12:03,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:12:03,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 19:12:03,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761514835] [2024-11-08 19:12:03,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:12:03,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 19:12:03,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:12:03,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 19:12:03,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:12:03,028 INFO L87 Difference]: Start difference. First operand 2867 states and 3544 transitions. Second operand has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 19:12:07,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:12:07,875 INFO L93 Difference]: Finished difference Result 6559 states and 8078 transitions. [2024-11-08 19:12:07,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 19:12:07,876 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 159 [2024-11-08 19:12:07,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:12:07,885 INFO L225 Difference]: With dead ends: 6559 [2024-11-08 19:12:07,885 INFO L226 Difference]: Without dead ends: 3742 [2024-11-08 19:12:07,888 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2024-11-08 19:12:07,889 INFO L432 NwaCegarLoop]: 295 mSDtfsCounter, 324 mSDsluCounter, 1375 mSDsCounter, 0 mSdLazyCounter, 1099 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 1670 SdHoareTripleChecker+Invalid, 1107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1099 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:12:07,889 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 1670 Invalid, 1107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1099 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-08 19:12:07,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2024-11-08 19:12:08,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 2843. [2024-11-08 19:12:08,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2843 states, 2642 states have (on average 1.230885692657078) internal successors, (3252), 2645 states have internal predecessors, (3252), 126 states have call successors, (126), 74 states have call predecessors, (126), 74 states have return successors, (126), 123 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-08 19:12:08,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2843 states to 2843 states and 3504 transitions. [2024-11-08 19:12:08,362 INFO L78 Accepts]: Start accepts. Automaton has 2843 states and 3504 transitions. Word has length 159 [2024-11-08 19:12:08,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:12:08,363 INFO L471 AbstractCegarLoop]: Abstraction has 2843 states and 3504 transitions. [2024-11-08 19:12:08,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 19:12:08,363 INFO L276 IsEmpty]: Start isEmpty. Operand 2843 states and 3504 transitions. [2024-11-08 19:12:08,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-08 19:12:08,369 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:12:08,370 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:12:08,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (64)] Forceful destruction successful, exit code 0 [2024-11-08 19:12:08,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:12:08,570 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:12:08,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:12:08,571 INFO L85 PathProgramCache]: Analyzing trace with hash -642807329, now seen corresponding path program 1 times [2024-11-08 19:12:08,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:12:08,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [922974480] [2024-11-08 19:12:08,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:12:08,572 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:12:08,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:12:08,579 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:12:08,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (65)] Waiting until timeout for monitored process [2024-11-08 19:12:09,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:12:09,322 INFO L255 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-08 19:12:09,326 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:12:09,432 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 19:12:10,325 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:12:10,325 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 139 treesize of output 76 [2024-11-08 19:12:10,619 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:12:10,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 192 treesize of output 72 [2024-11-08 19:12:10,738 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 308 proven. 0 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2024-11-08 19:12:10,738 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:12:10,738 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:12:10,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [922974480] [2024-11-08 19:12:10,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [922974480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:12:10,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:12:10,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 19:12:10,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493552540] [2024-11-08 19:12:10,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:12:10,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 19:12:10,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:12:10,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 19:12:10,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:12:10,740 INFO L87 Difference]: Start difference. First operand 2843 states and 3504 transitions. Second operand has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 19:12:14,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:12:14,767 INFO L93 Difference]: Finished difference Result 6339 states and 7788 transitions. [2024-11-08 19:12:14,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 19:12:14,768 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 159 [2024-11-08 19:12:14,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:12:14,775 INFO L225 Difference]: With dead ends: 6339 [2024-11-08 19:12:14,775 INFO L226 Difference]: Without dead ends: 3546 [2024-11-08 19:12:14,777 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2024-11-08 19:12:14,777 INFO L432 NwaCegarLoop]: 293 mSDtfsCounter, 323 mSDsluCounter, 1293 mSDsCounter, 0 mSdLazyCounter, 1029 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 1586 SdHoareTripleChecker+Invalid, 1037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:12:14,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 1586 Invalid, 1037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1029 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-08 19:12:14,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3546 states. [2024-11-08 19:12:15,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3546 to 2679. [2024-11-08 19:12:15,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2679 states, 2478 states have (on average 1.2308313155770783) internal successors, (3050), 2481 states have internal predecessors, (3050), 126 states have call successors, (126), 74 states have call predecessors, (126), 74 states have return successors, (126), 123 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-08 19:12:15,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2679 states to 2679 states and 3302 transitions. [2024-11-08 19:12:15,156 INFO L78 Accepts]: Start accepts. Automaton has 2679 states and 3302 transitions. Word has length 159 [2024-11-08 19:12:15,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:12:15,157 INFO L471 AbstractCegarLoop]: Abstraction has 2679 states and 3302 transitions. [2024-11-08 19:12:15,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 19:12:15,157 INFO L276 IsEmpty]: Start isEmpty. Operand 2679 states and 3302 transitions. [2024-11-08 19:12:15,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-08 19:12:15,159 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:12:15,160 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:12:15,167 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (65)] Ended with exit code 0 [2024-11-08 19:12:15,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:12:15,360 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:12:15,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:12:15,361 INFO L85 PathProgramCache]: Analyzing trace with hash 721637261, now seen corresponding path program 1 times [2024-11-08 19:12:15,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:12:15,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1422850024] [2024-11-08 19:12:15,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:12:15,362 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:12:15,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:12:15,364 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:12:15,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (66)] Waiting until timeout for monitored process [2024-11-08 19:12:15,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:12:15,977 INFO L255 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-08 19:12:15,982 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:12:16,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 19:12:16,093 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 19:12:16,943 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:12:16,943 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 125 treesize of output 74 [2024-11-08 19:12:17,246 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:12:17,246 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 176 treesize of output 80 [2024-11-08 19:12:18,354 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:12:18,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 211 treesize of output 73 [2024-11-08 19:12:18,508 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 308 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2024-11-08 19:12:18,509 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:12:20,094 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:12:20,095 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:12:20,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1422850024] [2024-11-08 19:12:20,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1422850024] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:12:20,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:12:20,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [15] total 25 [2024-11-08 19:12:20,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062224293] [2024-11-08 19:12:20,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:12:20,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 19:12:20,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:12:20,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 19:12:20,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=499, Unknown=0, NotChecked=0, Total=600 [2024-11-08 19:12:20,096 INFO L87 Difference]: Start difference. First operand 2679 states and 3302 transitions. Second operand has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:12:24,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:12:24,906 INFO L93 Difference]: Finished difference Result 5829 states and 7175 transitions. [2024-11-08 19:12:24,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 19:12:24,907 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 160 [2024-11-08 19:12:24,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:12:24,914 INFO L225 Difference]: With dead ends: 5829 [2024-11-08 19:12:24,914 INFO L226 Difference]: Without dead ends: 3200 [2024-11-08 19:12:24,917 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 294 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=227, Invalid=895, Unknown=0, NotChecked=0, Total=1122 [2024-11-08 19:12:24,917 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 310 mSDsluCounter, 1101 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 1276 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-08 19:12:24,917 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 1276 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-08 19:12:24,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3200 states. [2024-11-08 19:12:25,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3200 to 2764. [2024-11-08 19:12:25,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2764 states, 2563 states have (on average 1.2274678111587982) internal successors, (3146), 2566 states have internal predecessors, (3146), 126 states have call successors, (126), 74 states have call predecessors, (126), 74 states have return successors, (126), 123 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-08 19:12:25,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2764 states to 2764 states and 3398 transitions. [2024-11-08 19:12:25,240 INFO L78 Accepts]: Start accepts. Automaton has 2764 states and 3398 transitions. Word has length 160 [2024-11-08 19:12:25,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:12:25,241 INFO L471 AbstractCegarLoop]: Abstraction has 2764 states and 3398 transitions. [2024-11-08 19:12:25,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:12:25,241 INFO L276 IsEmpty]: Start isEmpty. Operand 2764 states and 3398 transitions. [2024-11-08 19:12:25,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-08 19:12:25,242 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:12:25,243 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:12:25,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (66)] Forceful destruction successful, exit code 0 [2024-11-08 19:12:25,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:12:25,443 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:12:25,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:12:25,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1527983781, now seen corresponding path program 1 times [2024-11-08 19:12:25,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:12:25,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1618190882] [2024-11-08 19:12:25,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:12:25,444 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:12:25,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:12:25,445 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:12:25,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (67)] Waiting until timeout for monitored process [2024-11-08 19:12:25,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:12:25,978 INFO L255 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-08 19:12:25,980 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:12:26,863 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:12:26,864 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 169 treesize of output 61 [2024-11-08 19:12:26,973 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:12:26,974 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:12:26,974 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:12:26,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1618190882] [2024-11-08 19:12:26,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1618190882] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:12:26,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:12:26,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 19:12:26,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281464267] [2024-11-08 19:12:26,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:12:26,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 19:12:26,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:12:26,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 19:12:26,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:12:26,975 INFO L87 Difference]: Start difference. First operand 2764 states and 3398 transitions. Second operand has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 10 states have internal predecessors, (73), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:12:30,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:12:30,975 INFO L93 Difference]: Finished difference Result 5558 states and 6860 transitions. [2024-11-08 19:12:30,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 19:12:30,977 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 10 states have internal predecessors, (73), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 160 [2024-11-08 19:12:30,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:12:30,987 INFO L225 Difference]: With dead ends: 5558 [2024-11-08 19:12:30,987 INFO L226 Difference]: Without dead ends: 2844 [2024-11-08 19:12:30,991 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-08 19:12:30,991 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 81 mSDsluCounter, 754 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-08 19:12:30,991 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 901 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-08 19:12:30,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2844 states. [2024-11-08 19:12:31,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2844 to 2796. [2024-11-08 19:12:31,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2796 states, 2595 states have (on average 1.2277456647398843) internal successors, (3186), 2598 states have internal predecessors, (3186), 126 states have call successors, (126), 74 states have call predecessors, (126), 74 states have return successors, (126), 123 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-08 19:12:31,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2796 states to 2796 states and 3438 transitions. [2024-11-08 19:12:31,513 INFO L78 Accepts]: Start accepts. Automaton has 2796 states and 3438 transitions. Word has length 160 [2024-11-08 19:12:31,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:12:31,514 INFO L471 AbstractCegarLoop]: Abstraction has 2796 states and 3438 transitions. [2024-11-08 19:12:31,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 10 states have internal predecessors, (73), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:12:31,514 INFO L276 IsEmpty]: Start isEmpty. Operand 2796 states and 3438 transitions. [2024-11-08 19:12:31,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-08 19:12:31,516 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:12:31,516 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:12:31,522 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (67)] Ended with exit code 0 [2024-11-08 19:12:31,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:12:31,716 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:12:31,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:12:31,717 INFO L85 PathProgramCache]: Analyzing trace with hash 2114789795, now seen corresponding path program 1 times [2024-11-08 19:12:31,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:12:31,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [510114055] [2024-11-08 19:12:31,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:12:31,717 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:12:31,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:12:31,719 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:12:31,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (68)] Waiting until timeout for monitored process [2024-11-08 19:12:32,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:12:32,261 INFO L255 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-08 19:12:32,264 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:12:33,313 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:12:33,314 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 198 treesize of output 72 [2024-11-08 19:12:33,467 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:12:33,468 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:12:33,468 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:12:33,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [510114055] [2024-11-08 19:12:33,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [510114055] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:12:33,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:12:33,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-08 19:12:33,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448234949] [2024-11-08 19:12:33,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:12:33,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 19:12:33,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:12:33,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 19:12:33,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-08 19:12:33,469 INFO L87 Difference]: Start difference. First operand 2796 states and 3438 transitions. Second operand has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 11 states have internal predecessors, (73), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:12:36,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:12:36,848 INFO L93 Difference]: Finished difference Result 5566 states and 6860 transitions. [2024-11-08 19:12:36,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 19:12:36,849 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 11 states have internal predecessors, (73), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 160 [2024-11-08 19:12:36,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:12:36,856 INFO L225 Difference]: With dead ends: 5566 [2024-11-08 19:12:36,856 INFO L226 Difference]: Without dead ends: 2820 [2024-11-08 19:12:36,858 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-11-08 19:12:36,858 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 76 mSDsluCounter, 867 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-08 19:12:36,859 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 1013 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-08 19:12:36,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2820 states. [2024-11-08 19:12:37,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2820 to 2812. [2024-11-08 19:12:37,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2812 states, 2611 states have (on average 1.2263500574492532) internal successors, (3202), 2614 states have internal predecessors, (3202), 126 states have call successors, (126), 74 states have call predecessors, (126), 74 states have return successors, (126), 123 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-08 19:12:37,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2812 states to 2812 states and 3454 transitions. [2024-11-08 19:12:37,178 INFO L78 Accepts]: Start accepts. Automaton has 2812 states and 3454 transitions. Word has length 160 [2024-11-08 19:12:37,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:12:37,178 INFO L471 AbstractCegarLoop]: Abstraction has 2812 states and 3454 transitions. [2024-11-08 19:12:37,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 11 states have internal predecessors, (73), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:12:37,179 INFO L276 IsEmpty]: Start isEmpty. Operand 2812 states and 3454 transitions. [2024-11-08 19:12:37,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-08 19:12:37,180 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:12:37,180 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:12:37,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (68)] Forceful destruction successful, exit code 0 [2024-11-08 19:12:37,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:12:37,381 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:12:37,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:12:37,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1856077056, now seen corresponding path program 1 times [2024-11-08 19:12:37,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:12:37,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2019261059] [2024-11-08 19:12:37,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:12:37,382 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:12:37,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:12:37,386 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:12:37,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (69)] Waiting until timeout for monitored process [2024-11-08 19:12:37,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:12:37,897 INFO L255 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-08 19:12:37,899 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:12:38,524 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:12:38,524 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 97 treesize of output 37 [2024-11-08 19:12:38,593 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:12:38,593 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:12:38,593 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:12:38,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2019261059] [2024-11-08 19:12:38,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2019261059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:12:38,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:12:38,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 19:12:38,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726302219] [2024-11-08 19:12:38,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:12:38,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 19:12:38,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:12:38,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 19:12:38,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:12:38,595 INFO L87 Difference]: Start difference. First operand 2812 states and 3454 transitions. Second operand has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 10 states have internal predecessors, (73), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:12:41,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:12:41,120 INFO L93 Difference]: Finished difference Result 5866 states and 7221 transitions. [2024-11-08 19:12:41,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 19:12:41,121 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 10 states have internal predecessors, (73), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 160 [2024-11-08 19:12:41,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:12:41,129 INFO L225 Difference]: With dead ends: 5866 [2024-11-08 19:12:41,129 INFO L226 Difference]: Without dead ends: 3065 [2024-11-08 19:12:41,131 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-11-08 19:12:41,132 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 130 mSDsluCounter, 861 mSDsCounter, 0 mSdLazyCounter, 722 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 1029 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-08 19:12:41,132 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 1029 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 722 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-08 19:12:41,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3065 states. [2024-11-08 19:12:41,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3065 to 2793. [2024-11-08 19:12:41,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2793 states, 2592 states have (on average 1.2237654320987654) internal successors, (3172), 2595 states have internal predecessors, (3172), 126 states have call successors, (126), 74 states have call predecessors, (126), 74 states have return successors, (126), 123 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-08 19:12:41,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2793 states to 2793 states and 3424 transitions. [2024-11-08 19:12:41,458 INFO L78 Accepts]: Start accepts. Automaton has 2793 states and 3424 transitions. Word has length 160 [2024-11-08 19:12:41,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:12:41,458 INFO L471 AbstractCegarLoop]: Abstraction has 2793 states and 3424 transitions. [2024-11-08 19:12:41,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 10 states have internal predecessors, (73), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:12:41,459 INFO L276 IsEmpty]: Start isEmpty. Operand 2793 states and 3424 transitions. [2024-11-08 19:12:41,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-08 19:12:41,461 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:12:41,461 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:12:41,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (69)] Forceful destruction successful, exit code 0 [2024-11-08 19:12:41,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:12:41,662 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:12:41,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:12:41,662 INFO L85 PathProgramCache]: Analyzing trace with hash 599337748, now seen corresponding path program 1 times [2024-11-08 19:12:41,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:12:41,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [572447228] [2024-11-08 19:12:41,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:12:41,663 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:12:41,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:12:41,664 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:12:41,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (70)] Waiting until timeout for monitored process [2024-11-08 19:12:42,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:12:42,184 INFO L255 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 19:12:42,186 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:12:42,466 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 22 [2024-11-08 19:12:42,501 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:12:42,501 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:12:42,501 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:12:42,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [572447228] [2024-11-08 19:12:42,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [572447228] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:12:42,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:12:42,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:12:42,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476531270] [2024-11-08 19:12:42,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:12:42,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:12:42,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:12:42,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:12:42,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:12:42,503 INFO L87 Difference]: Start difference. First operand 2793 states and 3424 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:12:43,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:12:43,997 INFO L93 Difference]: Finished difference Result 5858 states and 7205 transitions. [2024-11-08 19:12:43,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 19:12:43,998 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 160 [2024-11-08 19:12:43,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:12:44,004 INFO L225 Difference]: With dead ends: 5858 [2024-11-08 19:12:44,004 INFO L226 Difference]: Without dead ends: 3115 [2024-11-08 19:12:44,007 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:12:44,007 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 125 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:12:44,007 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 512 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 19:12:44,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3115 states. [2024-11-08 19:12:44,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3115 to 2845. [2024-11-08 19:12:44,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2845 states, 2644 states have (on average 1.226928895612708) internal successors, (3244), 2647 states have internal predecessors, (3244), 126 states have call successors, (126), 74 states have call predecessors, (126), 74 states have return successors, (126), 123 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-08 19:12:44,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2845 states to 2845 states and 3496 transitions. [2024-11-08 19:12:44,321 INFO L78 Accepts]: Start accepts. Automaton has 2845 states and 3496 transitions. Word has length 160 [2024-11-08 19:12:44,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:12:44,321 INFO L471 AbstractCegarLoop]: Abstraction has 2845 states and 3496 transitions. [2024-11-08 19:12:44,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:12:44,321 INFO L276 IsEmpty]: Start isEmpty. Operand 2845 states and 3496 transitions. [2024-11-08 19:12:44,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-08 19:12:44,323 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:12:44,323 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:12:44,330 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (70)] Ended with exit code 0 [2024-11-08 19:12:44,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:12:44,524 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:12:44,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:12:44,524 INFO L85 PathProgramCache]: Analyzing trace with hash 857503186, now seen corresponding path program 1 times [2024-11-08 19:12:44,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:12:44,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [429747384] [2024-11-08 19:12:44,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:12:44,525 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:12:44,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:12:44,526 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:12:44,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (71)] Waiting until timeout for monitored process [2024-11-08 19:12:45,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:12:45,054 INFO L255 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-08 19:12:45,057 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:12:46,000 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:12:46,000 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:12:46,000 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:12:46,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [429747384] [2024-11-08 19:12:46,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [429747384] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:12:46,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:12:46,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 19:12:46,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847445601] [2024-11-08 19:12:46,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:12:46,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 19:12:46,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:12:46,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 19:12:46,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:12:46,002 INFO L87 Difference]: Start difference. First operand 2845 states and 3496 transitions. Second operand has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 10 states have internal predecessors, (73), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:12:48,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:12:48,901 INFO L93 Difference]: Finished difference Result 5672 states and 6980 transitions. [2024-11-08 19:12:48,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 19:12:48,902 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 10 states have internal predecessors, (73), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 160 [2024-11-08 19:12:48,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:12:48,909 INFO L225 Difference]: With dead ends: 5672 [2024-11-08 19:12:48,909 INFO L226 Difference]: Without dead ends: 2877 [2024-11-08 19:12:48,911 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-08 19:12:48,911 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 79 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-08 19:12:48,911 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 869 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-08 19:12:48,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2877 states. [2024-11-08 19:12:49,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2877 to 2861. [2024-11-08 19:12:49,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2861 states, 2660 states have (on average 1.2270676691729323) internal successors, (3264), 2663 states have internal predecessors, (3264), 126 states have call successors, (126), 74 states have call predecessors, (126), 74 states have return successors, (126), 123 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-08 19:12:49,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2861 states to 2861 states and 3516 transitions. [2024-11-08 19:12:49,260 INFO L78 Accepts]: Start accepts. Automaton has 2861 states and 3516 transitions. Word has length 160 [2024-11-08 19:12:49,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:12:49,261 INFO L471 AbstractCegarLoop]: Abstraction has 2861 states and 3516 transitions. [2024-11-08 19:12:49,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 10 states have internal predecessors, (73), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:12:49,261 INFO L276 IsEmpty]: Start isEmpty. Operand 2861 states and 3516 transitions. [2024-11-08 19:12:49,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-08 19:12:49,263 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:12:49,263 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:12:49,271 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (71)] Forceful destruction successful, exit code 0 [2024-11-08 19:12:49,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:12:49,464 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:12:49,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:12:49,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1879201426, now seen corresponding path program 1 times [2024-11-08 19:12:49,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:12:49,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [386819979] [2024-11-08 19:12:49,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:12:49,465 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:12:49,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:12:49,466 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:12:49,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (72)] Waiting until timeout for monitored process [2024-11-08 19:12:50,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:12:50,072 INFO L255 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 19:12:50,074 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:12:50,635 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:12:50,635 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 106 treesize of output 34 [2024-11-08 19:12:50,937 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:12:50,937 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:12:50,937 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:12:50,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [386819979] [2024-11-08 19:12:50,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [386819979] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:12:50,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:12:50,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-08 19:12:50,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876894898] [2024-11-08 19:12:50,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:12:50,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 19:12:50,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:12:50,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 19:12:50,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-08 19:12:50,939 INFO L87 Difference]: Start difference. First operand 2861 states and 3516 transitions. Second operand has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 13 states have internal predecessors, (73), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:12:54,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:12:54,077 INFO L93 Difference]: Finished difference Result 5744 states and 7076 transitions. [2024-11-08 19:12:54,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 19:12:54,078 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 13 states have internal predecessors, (73), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 160 [2024-11-08 19:12:54,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:12:54,086 INFO L225 Difference]: With dead ends: 5744 [2024-11-08 19:12:54,086 INFO L226 Difference]: Without dead ends: 2933 [2024-11-08 19:12:54,088 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2024-11-08 19:12:54,089 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 93 mSDsluCounter, 870 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 1012 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-08 19:12:54,089 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 1012 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-08 19:12:54,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2933 states. [2024-11-08 19:12:54,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2933 to 2885. [2024-11-08 19:12:54,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2885 states, 2684 states have (on average 1.2295081967213115) internal successors, (3300), 2687 states have internal predecessors, (3300), 126 states have call successors, (126), 74 states have call predecessors, (126), 74 states have return successors, (126), 123 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-08 19:12:54,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2885 states to 2885 states and 3552 transitions. [2024-11-08 19:12:54,519 INFO L78 Accepts]: Start accepts. Automaton has 2885 states and 3552 transitions. Word has length 160 [2024-11-08 19:12:54,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:12:54,520 INFO L471 AbstractCegarLoop]: Abstraction has 2885 states and 3552 transitions. [2024-11-08 19:12:54,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 13 states have internal predecessors, (73), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:12:54,520 INFO L276 IsEmpty]: Start isEmpty. Operand 2885 states and 3552 transitions. [2024-11-08 19:12:54,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-08 19:12:54,523 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:12:54,523 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:12:54,529 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (72)] Ended with exit code 0 [2024-11-08 19:12:54,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:12:54,723 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:12:54,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:12:54,724 INFO L85 PathProgramCache]: Analyzing trace with hash 2137366864, now seen corresponding path program 1 times [2024-11-08 19:12:54,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:12:54,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1178224650] [2024-11-08 19:12:54,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:12:54,724 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:12:54,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:12:54,725 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:12:54,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (73)] Waiting until timeout for monitored process [2024-11-08 19:12:55,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:12:55,249 INFO L255 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-08 19:12:55,252 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:12:56,215 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:12:56,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 171 treesize of output 63 [2024-11-08 19:12:56,220 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:12:56,220 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:12:56,220 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:12:56,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1178224650] [2024-11-08 19:12:56,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1178224650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:12:56,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:12:56,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 19:12:56,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975724908] [2024-11-08 19:12:56,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:12:56,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 19:12:56,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:12:56,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 19:12:56,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:12:56,222 INFO L87 Difference]: Start difference. First operand 2885 states and 3552 transitions. Second operand has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 10 states have internal predecessors, (73), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:13:00,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:00,161 INFO L93 Difference]: Finished difference Result 5704 states and 7024 transitions. [2024-11-08 19:13:00,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 19:13:00,162 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 10 states have internal predecessors, (73), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 160 [2024-11-08 19:13:00,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:00,169 INFO L225 Difference]: With dead ends: 5704 [2024-11-08 19:13:00,169 INFO L226 Difference]: Without dead ends: 2869 [2024-11-08 19:13:00,171 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:13:00,172 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 79 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 800 SdHoareTripleChecker+Invalid, 758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:00,172 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 800 Invalid, 758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 758 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-08 19:13:00,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2869 states. [2024-11-08 19:13:00,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2869 to 2853. [2024-11-08 19:13:00,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2853 states, 2652 states have (on average 1.2262443438914028) internal successors, (3252), 2655 states have internal predecessors, (3252), 126 states have call successors, (126), 74 states have call predecessors, (126), 74 states have return successors, (126), 123 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-08 19:13:00,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2853 states to 2853 states and 3504 transitions. [2024-11-08 19:13:00,555 INFO L78 Accepts]: Start accepts. Automaton has 2853 states and 3504 transitions. Word has length 160 [2024-11-08 19:13:00,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:00,556 INFO L471 AbstractCegarLoop]: Abstraction has 2853 states and 3504 transitions. [2024-11-08 19:13:00,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 10 states have internal predecessors, (73), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:13:00,556 INFO L276 IsEmpty]: Start isEmpty. Operand 2853 states and 3504 transitions. [2024-11-08 19:13:00,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-08 19:13:00,557 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:00,558 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:13:00,565 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (73)] Forceful destruction successful, exit code 0 [2024-11-08 19:13:00,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:13:00,758 INFO L396 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:00,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:00,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1902938901, now seen corresponding path program 1 times [2024-11-08 19:13:00,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:13:00,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [334702874] [2024-11-08 19:13:00,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:00,759 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:13:00,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:13:00,760 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:13:00,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (74)] Waiting until timeout for monitored process [2024-11-08 19:13:01,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:01,294 INFO L255 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-08 19:13:01,296 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:13:01,746 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:13:01,746 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 102 treesize of output 42 [2024-11-08 19:13:01,923 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:13:01,923 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:13:01,924 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:13:01,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [334702874] [2024-11-08 19:13:01,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [334702874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:01,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:01,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 19:13:01,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751530405] [2024-11-08 19:13:01,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:01,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 19:13:01,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:13:01,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 19:13:01,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:13:01,925 INFO L87 Difference]: Start difference. First operand 2853 states and 3504 transitions. Second operand has 11 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 10 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:13:04,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:04,514 INFO L93 Difference]: Finished difference Result 7341 states and 8927 transitions. [2024-11-08 19:13:04,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 19:13:04,515 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 10 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 161 [2024-11-08 19:13:04,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:04,522 INFO L225 Difference]: With dead ends: 7341 [2024-11-08 19:13:04,522 INFO L226 Difference]: Without dead ends: 3988 [2024-11-08 19:13:04,524 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-11-08 19:13:04,524 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 225 mSDsluCounter, 1048 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 1219 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:04,524 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 1219 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-08 19:13:04,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3988 states. [2024-11-08 19:13:04,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3988 to 3052. [2024-11-08 19:13:04,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3052 states, 2837 states have (on average 1.198096580895312) internal successors, (3399), 2841 states have internal predecessors, (3399), 134 states have call successors, (134), 80 states have call predecessors, (134), 80 states have return successors, (134), 130 states have call predecessors, (134), 134 states have call successors, (134) [2024-11-08 19:13:04,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3052 states to 3052 states and 3667 transitions. [2024-11-08 19:13:04,948 INFO L78 Accepts]: Start accepts. Automaton has 3052 states and 3667 transitions. Word has length 161 [2024-11-08 19:13:04,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:04,948 INFO L471 AbstractCegarLoop]: Abstraction has 3052 states and 3667 transitions. [2024-11-08 19:13:04,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 10 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:13:04,949 INFO L276 IsEmpty]: Start isEmpty. Operand 3052 states and 3667 transitions. [2024-11-08 19:13:04,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-08 19:13:04,950 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:04,950 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:13:04,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (74)] Forceful destruction successful, exit code 0 [2024-11-08 19:13:05,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:13:05,151 INFO L396 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:05,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:05,151 INFO L85 PathProgramCache]: Analyzing trace with hash -493673952, now seen corresponding path program 1 times [2024-11-08 19:13:05,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:13:05,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1531455662] [2024-11-08 19:13:05,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:05,152 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:13:05,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:13:05,153 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:13:05,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (75)] Waiting until timeout for monitored process [2024-11-08 19:13:05,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:05,719 INFO L255 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 19:13:05,721 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:13:05,810 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:13:05,810 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 10 [2024-11-08 19:13:05,825 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:13:05,825 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:13:05,826 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:13:05,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1531455662] [2024-11-08 19:13:05,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1531455662] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:05,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:05,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:13:05,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347441568] [2024-11-08 19:13:05,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:05,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:13:05,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:13:05,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:13:05,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:13:05,827 INFO L87 Difference]: Start difference. First operand 3052 states and 3667 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:13:06,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:06,773 INFO L93 Difference]: Finished difference Result 6871 states and 8222 transitions. [2024-11-08 19:13:06,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:13:06,773 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 161 [2024-11-08 19:13:06,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:06,781 INFO L225 Difference]: With dead ends: 6871 [2024-11-08 19:13:06,781 INFO L226 Difference]: Without dead ends: 3822 [2024-11-08 19:13:06,783 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:13:06,784 INFO L432 NwaCegarLoop]: 206 mSDtfsCounter, 82 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:06,784 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 724 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:13:06,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3822 states. [2024-11-08 19:13:07,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3822 to 3282. [2024-11-08 19:13:07,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3282 states, 3067 states have (on average 1.1936746005868928) internal successors, (3661), 3071 states have internal predecessors, (3661), 134 states have call successors, (134), 80 states have call predecessors, (134), 80 states have return successors, (134), 130 states have call predecessors, (134), 134 states have call successors, (134) [2024-11-08 19:13:07,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3282 states to 3282 states and 3929 transitions. [2024-11-08 19:13:07,313 INFO L78 Accepts]: Start accepts. Automaton has 3282 states and 3929 transitions. Word has length 161 [2024-11-08 19:13:07,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:07,313 INFO L471 AbstractCegarLoop]: Abstraction has 3282 states and 3929 transitions. [2024-11-08 19:13:07,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:13:07,314 INFO L276 IsEmpty]: Start isEmpty. Operand 3282 states and 3929 transitions. [2024-11-08 19:13:07,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-08 19:13:07,316 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:07,317 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:13:07,328 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (75)] Ended with exit code 0 [2024-11-08 19:13:07,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:13:07,517 INFO L396 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:07,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:07,518 INFO L85 PathProgramCache]: Analyzing trace with hash 186384418, now seen corresponding path program 1 times [2024-11-08 19:13:07,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:13:07,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [796923089] [2024-11-08 19:13:07,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:07,518 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:13:07,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:13:07,519 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:13:07,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (76)] Waiting until timeout for monitored process [2024-11-08 19:13:08,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:08,042 INFO L255 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 19:13:08,044 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:13:08,070 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:13:08,070 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:13:08,070 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:13:08,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [796923089] [2024-11-08 19:13:08,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [796923089] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:08,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:08,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 19:13:08,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392179740] [2024-11-08 19:13:08,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:08,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:13:08,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:13:08,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:13:08,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:13:08,072 INFO L87 Difference]: Start difference. First operand 3282 states and 3929 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:13:08,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:08,582 INFO L93 Difference]: Finished difference Result 6597 states and 7901 transitions. [2024-11-08 19:13:08,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 19:13:08,583 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 161 [2024-11-08 19:13:08,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:08,592 INFO L225 Difference]: With dead ends: 6597 [2024-11-08 19:13:08,592 INFO L226 Difference]: Without dead ends: 3318 [2024-11-08 19:13:08,594 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:13:08,595 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 0 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:08,595 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 811 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:13:08,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3318 states. [2024-11-08 19:13:09,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3318 to 3306. [2024-11-08 19:13:09,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3306 states, 3091 states have (on average 1.1921708185053381) internal successors, (3685), 3095 states have internal predecessors, (3685), 134 states have call successors, (134), 80 states have call predecessors, (134), 80 states have return successors, (134), 130 states have call predecessors, (134), 134 states have call successors, (134) [2024-11-08 19:13:09,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3306 states to 3306 states and 3953 transitions. [2024-11-08 19:13:09,015 INFO L78 Accepts]: Start accepts. Automaton has 3306 states and 3953 transitions. Word has length 161 [2024-11-08 19:13:09,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:09,015 INFO L471 AbstractCegarLoop]: Abstraction has 3306 states and 3953 transitions. [2024-11-08 19:13:09,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:13:09,015 INFO L276 IsEmpty]: Start isEmpty. Operand 3306 states and 3953 transitions. [2024-11-08 19:13:09,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-08 19:13:09,017 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:09,017 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:13:09,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (76)] Forceful destruction successful, exit code 0 [2024-11-08 19:13:09,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:13:09,218 INFO L396 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:09,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:09,218 INFO L85 PathProgramCache]: Analyzing trace with hash 42921387, now seen corresponding path program 1 times [2024-11-08 19:13:09,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:13:09,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [160102851] [2024-11-08 19:13:09,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:09,219 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:13:09,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:13:09,220 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:13:09,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (77)] Waiting until timeout for monitored process [2024-11-08 19:13:09,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:09,752 INFO L255 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 19:13:09,754 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:13:10,227 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 31 [2024-11-08 19:13:10,304 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:13:10,304 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:13:10,304 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:13:10,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [160102851] [2024-11-08 19:13:10,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [160102851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:10,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:10,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 19:13:10,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597453122] [2024-11-08 19:13:10,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:10,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 19:13:10,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:13:10,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 19:13:10,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:13:10,306 INFO L87 Difference]: Start difference. First operand 3306 states and 3953 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:13:12,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:12,617 INFO L93 Difference]: Finished difference Result 6986 states and 8366 transitions. [2024-11-08 19:13:12,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 19:13:12,619 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 161 [2024-11-08 19:13:12,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:12,631 INFO L225 Difference]: With dead ends: 6986 [2024-11-08 19:13:12,631 INFO L226 Difference]: Without dead ends: 3383 [2024-11-08 19:13:12,634 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:13:12,635 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 155 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:12,635 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 711 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-08 19:13:12,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3383 states. [2024-11-08 19:13:13,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3383 to 2825. [2024-11-08 19:13:13,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2825 states, 2610 states have (on average 1.2007662835249042) internal successors, (3134), 2614 states have internal predecessors, (3134), 134 states have call successors, (134), 80 states have call predecessors, (134), 80 states have return successors, (134), 130 states have call predecessors, (134), 134 states have call successors, (134) [2024-11-08 19:13:13,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2825 states to 2825 states and 3402 transitions. [2024-11-08 19:13:13,134 INFO L78 Accepts]: Start accepts. Automaton has 2825 states and 3402 transitions. Word has length 161 [2024-11-08 19:13:13,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:13,134 INFO L471 AbstractCegarLoop]: Abstraction has 2825 states and 3402 transitions. [2024-11-08 19:13:13,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:13:13,134 INFO L276 IsEmpty]: Start isEmpty. Operand 2825 states and 3402 transitions. [2024-11-08 19:13:13,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-08 19:13:13,136 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:13,136 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:13:13,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (77)] Forceful destruction successful, exit code 0 [2024-11-08 19:13:13,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:13:13,336 INFO L396 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:13,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:13,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1180691732, now seen corresponding path program 1 times [2024-11-08 19:13:13,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:13:13,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [675491586] [2024-11-08 19:13:13,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:13,337 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:13:13,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:13:13,338 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:13:13,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (78)] Waiting until timeout for monitored process [2024-11-08 19:13:13,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:13,895 INFO L255 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 19:13:13,898 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:13:13,907 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:13:13,907 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:13:13,907 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:13:13,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [675491586] [2024-11-08 19:13:13,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [675491586] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:13,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:13,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:13:13,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373867964] [2024-11-08 19:13:13,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:13,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:13:13,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:13:13,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:13:13,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:13:13,909 INFO L87 Difference]: Start difference. First operand 2825 states and 3402 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:13:14,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:14,391 INFO L93 Difference]: Finished difference Result 5653 states and 6813 transitions. [2024-11-08 19:13:14,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:13:14,392 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 161 [2024-11-08 19:13:14,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:14,399 INFO L225 Difference]: With dead ends: 5653 [2024-11-08 19:13:14,399 INFO L226 Difference]: Without dead ends: 2831 [2024-11-08 19:13:14,401 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:13:14,401 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 0 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:14,401 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 327 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:13:14,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2831 states. [2024-11-08 19:13:14,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2831 to 2831. [2024-11-08 19:13:14,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2831 states, 2616 states have (on average 1.2003058103975535) internal successors, (3140), 2620 states have internal predecessors, (3140), 134 states have call successors, (134), 80 states have call predecessors, (134), 80 states have return successors, (134), 130 states have call predecessors, (134), 134 states have call successors, (134) [2024-11-08 19:13:14,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2831 states to 2831 states and 3408 transitions. [2024-11-08 19:13:14,868 INFO L78 Accepts]: Start accepts. Automaton has 2831 states and 3408 transitions. Word has length 161 [2024-11-08 19:13:14,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:14,868 INFO L471 AbstractCegarLoop]: Abstraction has 2831 states and 3408 transitions. [2024-11-08 19:13:14,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:13:14,869 INFO L276 IsEmpty]: Start isEmpty. Operand 2831 states and 3408 transitions. [2024-11-08 19:13:14,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-08 19:13:14,870 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:14,870 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:13:14,877 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (78)] Forceful destruction successful, exit code 0 [2024-11-08 19:13:15,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:13:15,071 INFO L396 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:15,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:15,071 INFO L85 PathProgramCache]: Analyzing trace with hash 371345106, now seen corresponding path program 1 times [2024-11-08 19:13:15,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:13:15,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1407572476] [2024-11-08 19:13:15,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:15,072 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:13:15,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:13:15,075 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:13:15,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (79)] Waiting until timeout for monitored process [2024-11-08 19:13:15,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:15,689 INFO L255 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-08 19:13:15,692 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:13:15,697 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-08 19:13:15,969 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 24 [2024-11-08 19:13:16,877 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 33 [2024-11-08 19:13:17,441 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:13:17,442 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 65 treesize of output 35 [2024-11-08 19:13:17,594 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 160 proven. 84 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2024-11-08 19:13:17,594 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:13:17,957 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:13:17,957 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:13:17,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1407572476] [2024-11-08 19:13:17,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1407572476] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:13:17,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:13:17,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [17] total 22 [2024-11-08 19:13:17,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610755929] [2024-11-08 19:13:17,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:17,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 19:13:17,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:13:17,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 19:13:17,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=399, Unknown=0, NotChecked=0, Total=462 [2024-11-08 19:13:17,959 INFO L87 Difference]: Start difference. First operand 2831 states and 3408 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:13:18,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:18,776 INFO L93 Difference]: Finished difference Result 2991 states and 3602 transitions. [2024-11-08 19:13:18,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 19:13:18,777 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 161 [2024-11-08 19:13:18,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:18,784 INFO L225 Difference]: With dead ends: 2991 [2024-11-08 19:13:18,784 INFO L226 Difference]: Without dead ends: 2989 [2024-11-08 19:13:18,785 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 299 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=83, Invalid=619, Unknown=0, NotChecked=0, Total=702 [2024-11-08 19:13:18,785 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 65 mSDsluCounter, 907 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 1061 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:18,785 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 1061 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:13:18,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2989 states. [2024-11-08 19:13:19,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2989 to 2849. [2024-11-08 19:13:19,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2849 states, 2634 states have (on average 1.2034927866362946) internal successors, (3170), 2638 states have internal predecessors, (3170), 134 states have call successors, (134), 80 states have call predecessors, (134), 80 states have return successors, (134), 130 states have call predecessors, (134), 134 states have call successors, (134) [2024-11-08 19:13:19,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2849 states to 2849 states and 3438 transitions. [2024-11-08 19:13:19,193 INFO L78 Accepts]: Start accepts. Automaton has 2849 states and 3438 transitions. Word has length 161 [2024-11-08 19:13:19,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:19,193 INFO L471 AbstractCegarLoop]: Abstraction has 2849 states and 3438 transitions. [2024-11-08 19:13:19,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:13:19,194 INFO L276 IsEmpty]: Start isEmpty. Operand 2849 states and 3438 transitions. [2024-11-08 19:13:19,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-08 19:13:19,195 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:19,195 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:13:19,203 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (79)] Ended with exit code 0 [2024-11-08 19:13:19,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:13:19,396 INFO L396 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:19,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:19,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1985231246, now seen corresponding path program 1 times [2024-11-08 19:13:19,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:13:19,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1664791533] [2024-11-08 19:13:19,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:19,397 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:13:19,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:13:19,398 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:13:19,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (80)] Waiting until timeout for monitored process [2024-11-08 19:13:19,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:19,938 INFO L255 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 19:13:19,940 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:13:20,296 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 21 [2024-11-08 19:13:20,332 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:13:20,332 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:13:20,332 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:13:20,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1664791533] [2024-11-08 19:13:20,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1664791533] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:20,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:20,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:13:20,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476829167] [2024-11-08 19:13:20,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:20,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:13:20,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:13:20,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:13:20,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:13:20,334 INFO L87 Difference]: Start difference. First operand 2849 states and 3438 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 5 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:13:22,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:22,100 INFO L93 Difference]: Finished difference Result 6636 states and 7961 transitions. [2024-11-08 19:13:22,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 19:13:22,100 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 5 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 161 [2024-11-08 19:13:22,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:22,108 INFO L225 Difference]: With dead ends: 6636 [2024-11-08 19:13:22,108 INFO L226 Difference]: Without dead ends: 3790 [2024-11-08 19:13:22,110 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:13:22,110 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 154 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:22,111 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 399 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 19:13:22,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3790 states. [2024-11-08 19:13:22,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3790 to 3225. [2024-11-08 19:13:22,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3225 states, 3010 states have (on average 1.187375415282392) internal successors, (3574), 3014 states have internal predecessors, (3574), 134 states have call successors, (134), 80 states have call predecessors, (134), 80 states have return successors, (134), 130 states have call predecessors, (134), 134 states have call successors, (134) [2024-11-08 19:13:22,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3225 states to 3225 states and 3842 transitions. [2024-11-08 19:13:22,604 INFO L78 Accepts]: Start accepts. Automaton has 3225 states and 3842 transitions. Word has length 161 [2024-11-08 19:13:22,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:22,605 INFO L471 AbstractCegarLoop]: Abstraction has 3225 states and 3842 transitions. [2024-11-08 19:13:22,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 5 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:13:22,605 INFO L276 IsEmpty]: Start isEmpty. Operand 3225 states and 3842 transitions. [2024-11-08 19:13:22,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-08 19:13:22,608 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:22,608 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:13:22,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (80)] Forceful destruction successful, exit code 0 [2024-11-08 19:13:22,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:13:22,808 INFO L396 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:22,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:22,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1284166668, now seen corresponding path program 1 times [2024-11-08 19:13:22,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:13:22,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [562318656] [2024-11-08 19:13:22,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:22,810 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:13:22,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:13:22,813 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:13:22,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (81)] Waiting until timeout for monitored process [2024-11-08 19:13:23,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:23,380 INFO L255 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-08 19:13:23,382 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:13:24,643 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:13:24,643 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 164 treesize of output 56 [2024-11-08 19:13:24,780 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:13:24,780 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:13:24,780 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:13:24,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [562318656] [2024-11-08 19:13:24,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [562318656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:24,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:24,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-08 19:13:24,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571257909] [2024-11-08 19:13:24,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:24,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 19:13:24,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:13:24,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 19:13:24,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-08 19:13:24,781 INFO L87 Difference]: Start difference. First operand 3225 states and 3842 transitions. Second operand has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 13 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:13:29,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:29,660 INFO L93 Difference]: Finished difference Result 6822 states and 8119 transitions. [2024-11-08 19:13:29,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 19:13:29,661 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 13 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 161 [2024-11-08 19:13:29,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:29,669 INFO L225 Difference]: With dead ends: 6822 [2024-11-08 19:13:29,669 INFO L226 Difference]: Without dead ends: 3518 [2024-11-08 19:13:29,672 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=101, Invalid=451, Unknown=0, NotChecked=0, Total=552 [2024-11-08 19:13:29,672 INFO L432 NwaCegarLoop]: 202 mSDtfsCounter, 169 mSDsluCounter, 1400 mSDsCounter, 0 mSdLazyCounter, 848 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 1602 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:29,672 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 1602 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 848 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-08 19:13:29,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3518 states. [2024-11-08 19:13:30,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3518 to 3105. [2024-11-08 19:13:30,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3105 states, 2890 states have (on average 1.1910034602076125) internal successors, (3442), 2894 states have internal predecessors, (3442), 134 states have call successors, (134), 80 states have call predecessors, (134), 80 states have return successors, (134), 130 states have call predecessors, (134), 134 states have call successors, (134) [2024-11-08 19:13:30,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3105 states to 3105 states and 3710 transitions. [2024-11-08 19:13:30,209 INFO L78 Accepts]: Start accepts. Automaton has 3105 states and 3710 transitions. Word has length 161 [2024-11-08 19:13:30,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:30,209 INFO L471 AbstractCegarLoop]: Abstraction has 3105 states and 3710 transitions. [2024-11-08 19:13:30,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 13 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:13:30,209 INFO L276 IsEmpty]: Start isEmpty. Operand 3105 states and 3710 transitions. [2024-11-08 19:13:30,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-08 19:13:30,211 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:30,211 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:13:30,218 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (81)] Ended with exit code 0 [2024-11-08 19:13:30,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:13:30,412 INFO L396 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:30,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:30,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1590937120, now seen corresponding path program 1 times [2024-11-08 19:13:30,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:13:30,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1170226229] [2024-11-08 19:13:30,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:30,413 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:13:30,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:13:30,414 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:13:30,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (82)] Waiting until timeout for monitored process [2024-11-08 19:13:30,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:30,970 INFO L255 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-08 19:13:30,973 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:13:30,996 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 19:13:31,387 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:13:31,387 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 136 treesize of output 46 [2024-11-08 19:13:31,454 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:13:31,454 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:13:31,454 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:13:31,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1170226229] [2024-11-08 19:13:31,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1170226229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:31,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:31,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 19:13:31,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524952428] [2024-11-08 19:13:31,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:31,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 19:13:31,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:13:31,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 19:13:31,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-08 19:13:31,456 INFO L87 Difference]: Start difference. First operand 3105 states and 3710 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:13:34,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:34,628 INFO L93 Difference]: Finished difference Result 7629 states and 9150 transitions. [2024-11-08 19:13:34,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 19:13:34,629 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 161 [2024-11-08 19:13:34,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:34,637 INFO L225 Difference]: With dead ends: 7629 [2024-11-08 19:13:34,637 INFO L226 Difference]: Without dead ends: 4527 [2024-11-08 19:13:34,639 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:13:34,639 INFO L432 NwaCegarLoop]: 342 mSDtfsCounter, 222 mSDsluCounter, 1301 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 1643 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:34,639 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 1643 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-08 19:13:34,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4527 states. [2024-11-08 19:13:35,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4527 to 3227. [2024-11-08 19:13:35,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3227 states, 3012 states have (on average 1.1952191235059761) internal successors, (3600), 3016 states have internal predecessors, (3600), 134 states have call successors, (134), 80 states have call predecessors, (134), 80 states have return successors, (134), 130 states have call predecessors, (134), 134 states have call successors, (134) [2024-11-08 19:13:35,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3227 states to 3227 states and 3868 transitions. [2024-11-08 19:13:35,108 INFO L78 Accepts]: Start accepts. Automaton has 3227 states and 3868 transitions. Word has length 161 [2024-11-08 19:13:35,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:35,108 INFO L471 AbstractCegarLoop]: Abstraction has 3227 states and 3868 transitions. [2024-11-08 19:13:35,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:13:35,108 INFO L276 IsEmpty]: Start isEmpty. Operand 3227 states and 3868 transitions. [2024-11-08 19:13:35,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-08 19:13:35,110 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:35,110 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:13:35,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (82)] Forceful destruction successful, exit code 0 [2024-11-08 19:13:35,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:13:35,311 INFO L396 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:35,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:35,311 INFO L85 PathProgramCache]: Analyzing trace with hash 676841147, now seen corresponding path program 1 times [2024-11-08 19:13:35,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:13:35,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1812769316] [2024-11-08 19:13:35,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:35,312 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:13:35,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:13:35,313 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:13:35,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (83)] Waiting until timeout for monitored process [2024-11-08 19:13:35,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:35,930 INFO L255 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-08 19:13:35,933 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:13:35,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 19:13:36,108 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 20 [2024-11-08 19:13:36,653 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 28 [2024-11-08 19:13:37,012 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:13:37,012 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 39 [2024-11-08 19:13:37,103 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 158 proven. 84 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2024-11-08 19:13:37,103 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:13:38,092 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 15 proven. 84 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2024-11-08 19:13:38,092 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:13:38,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1812769316] [2024-11-08 19:13:38,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1812769316] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:13:38,092 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 19:13:38,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 27 [2024-11-08 19:13:38,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508112594] [2024-11-08 19:13:38,093 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 19:13:38,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-08 19:13:38,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:13:38,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-08 19:13:38,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=590, Unknown=0, NotChecked=0, Total=702 [2024-11-08 19:13:38,094 INFO L87 Difference]: Start difference. First operand 3227 states and 3868 transitions. Second operand has 27 states, 23 states have (on average 5.6521739130434785) internal successors, (130), 26 states have internal predecessors, (130), 6 states have call successors, (34), 3 states have call predecessors, (34), 6 states have return successors, (34), 3 states have call predecessors, (34), 6 states have call successors, (34) [2024-11-08 19:13:39,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:39,986 INFO L93 Difference]: Finished difference Result 3333 states and 3979 transitions. [2024-11-08 19:13:39,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-08 19:13:39,987 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 23 states have (on average 5.6521739130434785) internal successors, (130), 26 states have internal predecessors, (130), 6 states have call successors, (34), 3 states have call predecessors, (34), 6 states have return successors, (34), 3 states have call predecessors, (34), 6 states have call successors, (34) Word has length 162 [2024-11-08 19:13:39,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:39,996 INFO L225 Difference]: With dead ends: 3333 [2024-11-08 19:13:39,996 INFO L226 Difference]: Without dead ends: 3331 [2024-11-08 19:13:39,997 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 296 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=276, Invalid=1206, Unknown=0, NotChecked=0, Total=1482 [2024-11-08 19:13:39,997 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 169 mSDsluCounter, 1444 mSDsCounter, 0 mSdLazyCounter, 773 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 1567 SdHoareTripleChecker+Invalid, 802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:39,997 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 1567 Invalid, 802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 773 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 19:13:39,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3331 states. [2024-11-08 19:13:40,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3331 to 3227. [2024-11-08 19:13:40,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3227 states, 3012 states have (on average 1.1952191235059761) internal successors, (3600), 3016 states have internal predecessors, (3600), 134 states have call successors, (134), 80 states have call predecessors, (134), 80 states have return successors, (134), 130 states have call predecessors, (134), 134 states have call successors, (134) [2024-11-08 19:13:40,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3227 states to 3227 states and 3868 transitions. [2024-11-08 19:13:40,427 INFO L78 Accepts]: Start accepts. Automaton has 3227 states and 3868 transitions. Word has length 162 [2024-11-08 19:13:40,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:40,428 INFO L471 AbstractCegarLoop]: Abstraction has 3227 states and 3868 transitions. [2024-11-08 19:13:40,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 23 states have (on average 5.6521739130434785) internal successors, (130), 26 states have internal predecessors, (130), 6 states have call successors, (34), 3 states have call predecessors, (34), 6 states have return successors, (34), 3 states have call predecessors, (34), 6 states have call successors, (34) [2024-11-08 19:13:40,428 INFO L276 IsEmpty]: Start isEmpty. Operand 3227 states and 3868 transitions. [2024-11-08 19:13:40,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-08 19:13:40,430 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:40,430 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:13:40,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (83)] Forceful destruction successful, exit code 0 [2024-11-08 19:13:40,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:13:40,630 INFO L396 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:40,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:40,630 INFO L85 PathProgramCache]: Analyzing trace with hash 58216047, now seen corresponding path program 1 times [2024-11-08 19:13:40,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:13:40,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1569981050] [2024-11-08 19:13:40,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:40,631 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:13:40,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:13:40,632 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:13:40,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (84)] Waiting until timeout for monitored process [2024-11-08 19:13:41,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:41,260 INFO L255 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-08 19:13:41,263 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:13:41,268 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-08 19:13:41,525 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 34 [2024-11-08 19:13:42,967 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:13:42,967 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 36 [2024-11-08 19:13:43,675 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:13:43,675 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 19 [2024-11-08 19:13:43,925 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 160 proven. 84 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2024-11-08 19:13:43,925 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:13:45,026 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 15 proven. 84 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2024-11-08 19:13:45,026 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:13:45,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1569981050] [2024-11-08 19:13:45,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1569981050] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:13:45,027 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 19:13:45,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 18] total 35 [2024-11-08 19:13:45,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078891305] [2024-11-08 19:13:45,027 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 19:13:45,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-08 19:13:45,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:13:45,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-08 19:13:45,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=1026, Unknown=0, NotChecked=0, Total=1190 [2024-11-08 19:13:45,029 INFO L87 Difference]: Start difference. First operand 3227 states and 3868 transitions. Second operand has 35 states, 31 states have (on average 5.064516129032258) internal successors, (157), 31 states have internal predecessors, (157), 7 states have call successors, (34), 4 states have call predecessors, (34), 6 states have return successors, (34), 6 states have call predecessors, (34), 7 states have call successors, (34) [2024-11-08 19:13:49,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:49,606 INFO L93 Difference]: Finished difference Result 4151 states and 4918 transitions. [2024-11-08 19:13:49,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-11-08 19:13:49,606 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 31 states have (on average 5.064516129032258) internal successors, (157), 31 states have internal predecessors, (157), 7 states have call successors, (34), 4 states have call predecessors, (34), 6 states have return successors, (34), 6 states have call predecessors, (34), 7 states have call successors, (34) Word has length 163 [2024-11-08 19:13:49,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:49,615 INFO L225 Difference]: With dead ends: 4151 [2024-11-08 19:13:49,615 INFO L226 Difference]: Without dead ends: 4149 [2024-11-08 19:13:49,616 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 867 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=686, Invalid=3346, Unknown=0, NotChecked=0, Total=4032 [2024-11-08 19:13:49,616 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 824 mSDsluCounter, 1783 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 830 SdHoareTripleChecker+Valid, 1906 SdHoareTripleChecker+Invalid, 1050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:49,616 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [830 Valid, 1906 Invalid, 1050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 910 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-08 19:13:49,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4149 states. [2024-11-08 19:13:50,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4149 to 3245. [2024-11-08 19:13:50,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3245 states, 3030 states have (on average 1.196039603960396) internal successors, (3624), 3034 states have internal predecessors, (3624), 134 states have call successors, (134), 80 states have call predecessors, (134), 80 states have return successors, (134), 130 states have call predecessors, (134), 134 states have call successors, (134) [2024-11-08 19:13:50,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3245 states to 3245 states and 3892 transitions. [2024-11-08 19:13:50,098 INFO L78 Accepts]: Start accepts. Automaton has 3245 states and 3892 transitions. Word has length 163 [2024-11-08 19:13:50,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:50,098 INFO L471 AbstractCegarLoop]: Abstraction has 3245 states and 3892 transitions. [2024-11-08 19:13:50,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 31 states have (on average 5.064516129032258) internal successors, (157), 31 states have internal predecessors, (157), 7 states have call successors, (34), 4 states have call predecessors, (34), 6 states have return successors, (34), 6 states have call predecessors, (34), 7 states have call successors, (34) [2024-11-08 19:13:50,098 INFO L276 IsEmpty]: Start isEmpty. Operand 3245 states and 3892 transitions. [2024-11-08 19:13:50,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-08 19:13:50,100 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:50,100 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:13:50,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (84)] Forceful destruction successful, exit code 0 [2024-11-08 19:13:50,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:13:50,300 INFO L396 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:50,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:50,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1732943333, now seen corresponding path program 1 times [2024-11-08 19:13:50,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:13:50,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [926865768] [2024-11-08 19:13:50,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:50,302 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:13:50,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:13:50,303 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:13:50,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (85)] Waiting until timeout for monitored process [2024-11-08 19:13:50,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:50,844 INFO L255 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 19:13:50,846 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:13:51,067 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 19:13:51,228 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 21 [2024-11-08 19:13:51,260 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:13:51,260 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:13:51,260 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:13:51,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [926865768] [2024-11-08 19:13:51,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [926865768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:51,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:51,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 19:13:51,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167685273] [2024-11-08 19:13:51,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:51,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 19:13:51,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:13:51,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 19:13:51,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:13:51,262 INFO L87 Difference]: Start difference. First operand 3245 states and 3892 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 6 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:13:53,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 19:13:55,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:55,227 INFO L93 Difference]: Finished difference Result 7360 states and 8833 transitions. [2024-11-08 19:13:55,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 19:13:55,227 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 6 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 163 [2024-11-08 19:13:55,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:55,234 INFO L225 Difference]: With dead ends: 7360 [2024-11-08 19:13:55,235 INFO L226 Difference]: Without dead ends: 4118 [2024-11-08 19:13:55,236 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:13:55,237 INFO L432 NwaCegarLoop]: 262 mSDtfsCounter, 223 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 986 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:55,237 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 986 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-08 19:13:55,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4118 states. [2024-11-08 19:13:55,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4118 to 3207. [2024-11-08 19:13:55,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3207 states, 2992 states have (on average 1.1838235294117647) internal successors, (3542), 2996 states have internal predecessors, (3542), 134 states have call successors, (134), 80 states have call predecessors, (134), 80 states have return successors, (134), 130 states have call predecessors, (134), 134 states have call successors, (134) [2024-11-08 19:13:55,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3207 states to 3207 states and 3810 transitions. [2024-11-08 19:13:55,699 INFO L78 Accepts]: Start accepts. Automaton has 3207 states and 3810 transitions. Word has length 163 [2024-11-08 19:13:55,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:55,699 INFO L471 AbstractCegarLoop]: Abstraction has 3207 states and 3810 transitions. [2024-11-08 19:13:55,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 6 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:13:55,699 INFO L276 IsEmpty]: Start isEmpty. Operand 3207 states and 3810 transitions. [2024-11-08 19:13:55,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-08 19:13:55,702 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:55,702 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:13:55,712 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (85)] Ended with exit code 0 [2024-11-08 19:13:55,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:13:55,902 INFO L396 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:55,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:55,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1574013639, now seen corresponding path program 1 times [2024-11-08 19:13:55,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:13:55,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [524549012] [2024-11-08 19:13:55,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:55,903 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:13:55,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:13:55,905 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:13:55,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (86)] Waiting until timeout for monitored process [2024-11-08 19:13:56,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:56,448 INFO L255 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 19:13:56,451 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:13:56,678 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 19:13:56,783 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:13:56,783 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 102 treesize of output 42 [2024-11-08 19:13:56,829 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:13:56,829 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:13:56,829 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:13:56,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [524549012] [2024-11-08 19:13:56,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [524549012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:56,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:56,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 19:13:56,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558471820] [2024-11-08 19:13:56,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:56,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 19:13:56,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:13:56,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 19:13:56,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:13:56,831 INFO L87 Difference]: Start difference. First operand 3207 states and 3810 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:13:59,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:59,531 INFO L93 Difference]: Finished difference Result 6768 states and 8065 transitions. [2024-11-08 19:13:59,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 19:13:59,532 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 163 [2024-11-08 19:13:59,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:59,539 INFO L225 Difference]: With dead ends: 6768 [2024-11-08 19:13:59,539 INFO L226 Difference]: Without dead ends: 3564 [2024-11-08 19:13:59,541 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:13:59,542 INFO L432 NwaCegarLoop]: 263 mSDtfsCounter, 235 mSDsluCounter, 808 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 1071 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:59,542 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 1071 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-08 19:13:59,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3564 states. [2024-11-08 19:13:59,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3564 to 2337. [2024-11-08 19:13:59,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2337 states, 2172 states have (on average 1.1758747697974217) internal successors, (2554), 2172 states have internal predecessors, (2554), 104 states have call successors, (104), 60 states have call predecessors, (104), 60 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-08 19:13:59,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2337 states to 2337 states and 2762 transitions. [2024-11-08 19:13:59,884 INFO L78 Accepts]: Start accepts. Automaton has 2337 states and 2762 transitions. Word has length 163 [2024-11-08 19:13:59,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:59,885 INFO L471 AbstractCegarLoop]: Abstraction has 2337 states and 2762 transitions. [2024-11-08 19:13:59,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:13:59,885 INFO L276 IsEmpty]: Start isEmpty. Operand 2337 states and 2762 transitions. [2024-11-08 19:13:59,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-08 19:13:59,886 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:59,886 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:13:59,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (86)] Forceful destruction successful, exit code 0 [2024-11-08 19:14:00,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:14:00,087 INFO L396 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:14:00,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:14:00,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1604823193, now seen corresponding path program 1 times [2024-11-08 19:14:00,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:14:00,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [807218206] [2024-11-08 19:14:00,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:00,088 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:14:00,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:14:00,089 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:14:00,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (87)] Waiting until timeout for monitored process [2024-11-08 19:14:00,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:00,630 INFO L255 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-08 19:14:00,632 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:14:00,845 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 19:14:01,245 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:14:01,246 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 125 treesize of output 53 [2024-11-08 19:14:01,316 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:14:01,316 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:14:01,316 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:14:01,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [807218206] [2024-11-08 19:14:01,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [807218206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:14:01,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:14:01,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 19:14:01,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759800536] [2024-11-08 19:14:01,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:14:01,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 19:14:01,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:14:01,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 19:14:01,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:14:01,318 INFO L87 Difference]: Start difference. First operand 2337 states and 2762 transitions. Second operand has 11 states, 11 states have (on average 6.909090909090909) internal successors, (76), 10 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:14:04,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:14:04,470 INFO L93 Difference]: Finished difference Result 5894 states and 6983 transitions. [2024-11-08 19:14:04,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 19:14:04,471 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.909090909090909) internal successors, (76), 10 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 163 [2024-11-08 19:14:04,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:14:04,482 INFO L225 Difference]: With dead ends: 5894 [2024-11-08 19:14:04,482 INFO L226 Difference]: Without dead ends: 3560 [2024-11-08 19:14:04,484 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-08 19:14:04,484 INFO L432 NwaCegarLoop]: 325 mSDtfsCounter, 322 mSDsluCounter, 1215 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 1540 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:14:04,484 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 1540 Invalid, 826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-08 19:14:04,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3560 states. [2024-11-08 19:14:04,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3560 to 2325. [2024-11-08 19:14:04,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2325 states, 2160 states have (on average 1.174074074074074) internal successors, (2536), 2160 states have internal predecessors, (2536), 104 states have call successors, (104), 60 states have call predecessors, (104), 60 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-08 19:14:04,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2325 states to 2325 states and 2744 transitions. [2024-11-08 19:14:04,792 INFO L78 Accepts]: Start accepts. Automaton has 2325 states and 2744 transitions. Word has length 163 [2024-11-08 19:14:04,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:14:04,792 INFO L471 AbstractCegarLoop]: Abstraction has 2325 states and 2744 transitions. [2024-11-08 19:14:04,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.909090909090909) internal successors, (76), 10 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:14:04,793 INFO L276 IsEmpty]: Start isEmpty. Operand 2325 states and 2744 transitions. [2024-11-08 19:14:04,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-08 19:14:04,794 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:14:04,794 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:14:04,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (87)] Forceful destruction successful, exit code 0 [2024-11-08 19:14:04,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:14:04,995 INFO L396 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:14:04,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:14:04,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1212330918, now seen corresponding path program 1 times [2024-11-08 19:14:04,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:14:04,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1083265275] [2024-11-08 19:14:04,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:04,996 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:14:04,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:14:04,997 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:14:05,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (88)] Waiting until timeout for monitored process [2024-11-08 19:14:05,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:05,588 INFO L255 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-08 19:14:05,591 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:14:06,575 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:14:06,575 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:14:06,575 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:14:06,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1083265275] [2024-11-08 19:14:06,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1083265275] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:14:06,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:14:06,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-08 19:14:06,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511267141] [2024-11-08 19:14:06,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:14:06,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 19:14:06,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:14:06,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 19:14:06,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-08 19:14:06,577 INFO L87 Difference]: Start difference. First operand 2325 states and 2744 transitions. Second operand has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 11 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:14:09,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:14:09,006 INFO L93 Difference]: Finished difference Result 4906 states and 5767 transitions. [2024-11-08 19:14:09,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 19:14:09,008 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 11 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 163 [2024-11-08 19:14:09,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:14:09,015 INFO L225 Difference]: With dead ends: 4906 [2024-11-08 19:14:09,015 INFO L226 Difference]: Without dead ends: 2490 [2024-11-08 19:14:09,017 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2024-11-08 19:14:09,017 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 135 mSDsluCounter, 867 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 1074 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-08 19:14:09,017 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 1074 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 564 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-08 19:14:09,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2490 states. [2024-11-08 19:14:09,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2490 to 2183. [2024-11-08 19:14:09,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2183 states, 2018 states have (on average 1.1694747274529236) internal successors, (2360), 2018 states have internal predecessors, (2360), 104 states have call successors, (104), 60 states have call predecessors, (104), 60 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-08 19:14:09,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2183 states to 2183 states and 2568 transitions. [2024-11-08 19:14:09,328 INFO L78 Accepts]: Start accepts. Automaton has 2183 states and 2568 transitions. Word has length 163 [2024-11-08 19:14:09,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:14:09,329 INFO L471 AbstractCegarLoop]: Abstraction has 2183 states and 2568 transitions. [2024-11-08 19:14:09,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 11 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:14:09,329 INFO L276 IsEmpty]: Start isEmpty. Operand 2183 states and 2568 transitions. [2024-11-08 19:14:09,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-08 19:14:09,330 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:14:09,330 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:14:09,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (88)] Ended with exit code 0 [2024-11-08 19:14:09,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:14:09,531 INFO L396 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:14:09,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:14:09,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1172662867, now seen corresponding path program 1 times [2024-11-08 19:14:09,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:14:09,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [431198953] [2024-11-08 19:14:09,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:09,532 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:14:09,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:14:09,533 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:14:09,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (89)] Waiting until timeout for monitored process [2024-11-08 19:14:10,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:10,091 INFO L255 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 19:14:10,094 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:14:10,830 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 54 [2024-11-08 19:14:11,426 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:14:11,426 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 137 treesize of output 47 [2024-11-08 19:14:11,501 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 308 proven. 0 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2024-11-08 19:14:11,501 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:14:11,501 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:14:11,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [431198953] [2024-11-08 19:14:11,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [431198953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:14:11,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:14:11,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-08 19:14:11,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683880596] [2024-11-08 19:14:11,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:14:11,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 19:14:11,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:14:11,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 19:14:11,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-11-08 19:14:11,503 INFO L87 Difference]: Start difference. First operand 2183 states and 2568 transitions. Second operand has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 19:14:15,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:14:15,491 INFO L93 Difference]: Finished difference Result 5638 states and 6558 transitions. [2024-11-08 19:14:15,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 19:14:15,492 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 163 [2024-11-08 19:14:15,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:14:15,499 INFO L225 Difference]: With dead ends: 5638 [2024-11-08 19:14:15,499 INFO L226 Difference]: Without dead ends: 3286 [2024-11-08 19:14:15,501 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-11-08 19:14:15,501 INFO L432 NwaCegarLoop]: 304 mSDtfsCounter, 326 mSDsluCounter, 1322 mSDsCounter, 0 mSdLazyCounter, 1008 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 1626 SdHoareTripleChecker+Invalid, 1020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:14:15,501 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 1626 Invalid, 1020 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1008 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-08 19:14:15,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3286 states. [2024-11-08 19:14:15,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3286 to 2073. [2024-11-08 19:14:15,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2073 states, 1908 states have (on average 1.1645702306079664) internal successors, (2222), 1908 states have internal predecessors, (2222), 104 states have call successors, (104), 60 states have call predecessors, (104), 60 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-08 19:14:15,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2073 states to 2073 states and 2430 transitions. [2024-11-08 19:14:15,886 INFO L78 Accepts]: Start accepts. Automaton has 2073 states and 2430 transitions. Word has length 163 [2024-11-08 19:14:15,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:14:15,886 INFO L471 AbstractCegarLoop]: Abstraction has 2073 states and 2430 transitions. [2024-11-08 19:14:15,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 19:14:15,886 INFO L276 IsEmpty]: Start isEmpty. Operand 2073 states and 2430 transitions. [2024-11-08 19:14:15,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-08 19:14:15,887 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:14:15,888 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:14:15,894 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (89)] Ended with exit code 0 [2024-11-08 19:14:16,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:14:16,088 INFO L396 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:14:16,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:14:16,088 INFO L85 PathProgramCache]: Analyzing trace with hash -475379563, now seen corresponding path program 1 times [2024-11-08 19:14:16,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:14:16,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1399232925] [2024-11-08 19:14:16,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:16,089 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:14:16,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:14:16,090 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:14:16,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (90)] Waiting until timeout for monitored process [2024-11-08 19:14:16,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:16,666 INFO L255 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-08 19:14:16,670 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:14:18,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 65 [2024-11-08 19:14:18,838 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 318 proven. 30 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 19:14:18,838 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:14:21,069 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:14:21,069 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:14:21,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1399232925] [2024-11-08 19:14:21,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1399232925] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:14:21,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:14:21,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [17] total 32 [2024-11-08 19:14:21,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809848511] [2024-11-08 19:14:21,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:14:21,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-08 19:14:21,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:14:21,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-08 19:14:21,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=849, Unknown=0, NotChecked=0, Total=992 [2024-11-08 19:14:21,071 INFO L87 Difference]: Start difference. First operand 2073 states and 2430 transitions. Second operand has 16 states, 16 states have (on average 4.75) internal successors, (76), 16 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:14:24,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:14:24,477 INFO L93 Difference]: Finished difference Result 4293 states and 5032 transitions. [2024-11-08 19:14:24,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-08 19:14:24,478 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.75) internal successors, (76), 16 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 163 [2024-11-08 19:14:24,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:14:24,485 INFO L225 Difference]: With dead ends: 4293 [2024-11-08 19:14:24,485 INFO L226 Difference]: Without dead ends: 2215 [2024-11-08 19:14:24,487 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 441 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=308, Invalid=1414, Unknown=0, NotChecked=0, Total=1722 [2024-11-08 19:14:24,487 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 300 mSDsluCounter, 1562 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 1754 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:14:24,487 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 1754 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-08 19:14:24,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2215 states. [2024-11-08 19:14:24,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2215 to 2073. [2024-11-08 19:14:24,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2073 states, 1908 states have (on average 1.1624737945492662) internal successors, (2218), 1908 states have internal predecessors, (2218), 104 states have call successors, (104), 60 states have call predecessors, (104), 60 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-08 19:14:24,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2073 states to 2073 states and 2426 transitions. [2024-11-08 19:14:24,794 INFO L78 Accepts]: Start accepts. Automaton has 2073 states and 2426 transitions. Word has length 163 [2024-11-08 19:14:24,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:14:24,795 INFO L471 AbstractCegarLoop]: Abstraction has 2073 states and 2426 transitions. [2024-11-08 19:14:24,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.75) internal successors, (76), 16 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:14:24,795 INFO L276 IsEmpty]: Start isEmpty. Operand 2073 states and 2426 transitions. [2024-11-08 19:14:24,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-08 19:14:24,796 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:14:24,796 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:14:24,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (90)] Forceful destruction successful, exit code 0 [2024-11-08 19:14:24,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 90 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:14:24,997 INFO L396 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:14:24,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:14:24,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1176444141, now seen corresponding path program 1 times [2024-11-08 19:14:24,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:14:24,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1716981431] [2024-11-08 19:14:24,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:24,998 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:14:24,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:14:24,999 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:14:25,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (91)] Waiting until timeout for monitored process [2024-11-08 19:14:25,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:25,564 INFO L255 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 19:14:25,566 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:14:25,910 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 22 [2024-11-08 19:14:25,942 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:14:25,942 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:14:25,942 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:14:25,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1716981431] [2024-11-08 19:14:25,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1716981431] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:14:25,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:14:25,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:14:25,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148288417] [2024-11-08 19:14:25,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:14:25,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:14:25,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:14:25,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:14:25,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:14:25,944 INFO L87 Difference]: Start difference. First operand 2073 states and 2426 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:14:27,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:14:27,120 INFO L93 Difference]: Finished difference Result 4500 states and 5249 transitions. [2024-11-08 19:14:27,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 19:14:27,121 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 163 [2024-11-08 19:14:27,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:14:27,128 INFO L225 Difference]: With dead ends: 4500 [2024-11-08 19:14:27,128 INFO L226 Difference]: Without dead ends: 2159 [2024-11-08 19:14:27,129 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:14:27,130 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 140 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 19:14:27,130 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 567 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 19:14:27,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2159 states. [2024-11-08 19:14:27,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2159 to 1954. [2024-11-08 19:14:27,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1954 states, 1789 states have (on average 1.1492453884851872) internal successors, (2056), 1789 states have internal predecessors, (2056), 104 states have call successors, (104), 60 states have call predecessors, (104), 60 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-08 19:14:27,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1954 states to 1954 states and 2264 transitions. [2024-11-08 19:14:27,435 INFO L78 Accepts]: Start accepts. Automaton has 1954 states and 2264 transitions. Word has length 163 [2024-11-08 19:14:27,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:14:27,436 INFO L471 AbstractCegarLoop]: Abstraction has 1954 states and 2264 transitions. [2024-11-08 19:14:27,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:14:27,436 INFO L276 IsEmpty]: Start isEmpty. Operand 1954 states and 2264 transitions. [2024-11-08 19:14:27,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-08 19:14:27,438 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:14:27,438 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:14:27,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (91)] Forceful destruction successful, exit code 0 [2024-11-08 19:14:27,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 91 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:14:27,639 INFO L396 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:14:27,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:14:27,639 INFO L85 PathProgramCache]: Analyzing trace with hash 679198951, now seen corresponding path program 1 times [2024-11-08 19:14:27,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:14:27,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [849667929] [2024-11-08 19:14:27,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:27,640 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:14:27,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:14:27,641 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:14:27,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (92)] Waiting until timeout for monitored process [2024-11-08 19:14:28,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:28,275 INFO L255 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-08 19:14:28,278 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:14:28,282 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 19:14:28,614 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 20 [2024-11-08 19:14:28,801 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 267 proven. 36 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2024-11-08 19:14:28,801 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:14:29,009 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:14:29,009 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:14:29,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [849667929] [2024-11-08 19:14:29,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [849667929] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:14:29,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:14:29,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2024-11-08 19:14:29,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994639155] [2024-11-08 19:14:29,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:14:29,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:14:29,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:14:29,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:14:29,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:14:29,011 INFO L87 Difference]: Start difference. First operand 1954 states and 2264 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:14:29,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:14:29,526 INFO L93 Difference]: Finished difference Result 4628 states and 5358 transitions. [2024-11-08 19:14:29,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 19:14:29,527 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 165 [2024-11-08 19:14:29,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:14:29,534 INFO L225 Difference]: With dead ends: 4628 [2024-11-08 19:14:29,534 INFO L226 Difference]: Without dead ends: 2677 [2024-11-08 19:14:29,536 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-08 19:14:29,536 INFO L432 NwaCegarLoop]: 243 mSDtfsCounter, 62 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:14:29,536 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 762 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:14:29,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2677 states. [2024-11-08 19:14:29,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2677 to 2605. [2024-11-08 19:14:29,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2605 states, 2440 states have (on average 1.151639344262295) internal successors, (2810), 2440 states have internal predecessors, (2810), 104 states have call successors, (104), 60 states have call predecessors, (104), 60 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-08 19:14:29,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2605 states to 2605 states and 3018 transitions. [2024-11-08 19:14:29,836 INFO L78 Accepts]: Start accepts. Automaton has 2605 states and 3018 transitions. Word has length 165 [2024-11-08 19:14:29,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:14:29,836 INFO L471 AbstractCegarLoop]: Abstraction has 2605 states and 3018 transitions. [2024-11-08 19:14:29,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:14:29,836 INFO L276 IsEmpty]: Start isEmpty. Operand 2605 states and 3018 transitions. [2024-11-08 19:14:29,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-08 19:14:29,838 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:14:29,838 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:14:29,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (92)] Forceful destruction successful, exit code 0 [2024-11-08 19:14:30,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 92 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:14:30,039 INFO L396 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:14:30,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:14:30,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1370188891, now seen corresponding path program 1 times [2024-11-08 19:14:30,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:14:30,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [310483940] [2024-11-08 19:14:30,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:30,040 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:14:30,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:14:30,041 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:14:30,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (93)] Waiting until timeout for monitored process [2024-11-08 19:14:30,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:30,681 INFO L255 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-08 19:14:30,685 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:14:30,687 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 19:14:30,729 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-11-08 19:14:30,858 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:14:30,859 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 38 [2024-11-08 19:14:32,003 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:14:32,004 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 46 [2024-11-08 19:14:32,440 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 195 proven. 48 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2024-11-08 19:14:32,440 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:14:32,708 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:14:32,708 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:14:32,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [310483940] [2024-11-08 19:14:32,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [310483940] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:14:32,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:14:32,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 13 [2024-11-08 19:14:32,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194255117] [2024-11-08 19:14:32,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:14:32,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:14:32,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:14:32,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:14:32,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-08 19:14:32,710 INFO L87 Difference]: Start difference. First operand 2605 states and 3018 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:14:33,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:14:33,235 INFO L93 Difference]: Finished difference Result 5239 states and 6068 transitions. [2024-11-08 19:14:33,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 19:14:33,235 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 165 [2024-11-08 19:14:33,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:14:33,242 INFO L225 Difference]: With dead ends: 5239 [2024-11-08 19:14:33,242 INFO L226 Difference]: Without dead ends: 2637 [2024-11-08 19:14:33,243 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-08 19:14:33,243 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 49 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 752 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:14:33,243 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 752 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:14:33,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2637 states. [2024-11-08 19:14:33,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2637 to 2603. [2024-11-08 19:14:33,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2603 states, 2438 states have (on average 1.150943396226415) internal successors, (2806), 2438 states have internal predecessors, (2806), 104 states have call successors, (104), 60 states have call predecessors, (104), 60 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-08 19:14:33,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2603 states to 2603 states and 3014 transitions. [2024-11-08 19:14:33,545 INFO L78 Accepts]: Start accepts. Automaton has 2603 states and 3014 transitions. Word has length 165 [2024-11-08 19:14:33,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:14:33,545 INFO L471 AbstractCegarLoop]: Abstraction has 2603 states and 3014 transitions. [2024-11-08 19:14:33,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:14:33,546 INFO L276 IsEmpty]: Start isEmpty. Operand 2603 states and 3014 transitions. [2024-11-08 19:14:33,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-08 19:14:33,547 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:14:33,547 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:14:33,555 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (93)] Ended with exit code 0 [2024-11-08 19:14:33,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 93 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:14:33,748 INFO L396 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:14:33,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:14:33,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1280209440, now seen corresponding path program 1 times [2024-11-08 19:14:33,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:14:33,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [90697650] [2024-11-08 19:14:33,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:33,749 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:14:33,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:14:33,750 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:14:33,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (94)] Waiting until timeout for monitored process [2024-11-08 19:14:34,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:34,336 INFO L255 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 19:14:34,338 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:14:35,049 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:14:35,050 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 139 treesize of output 55 [2024-11-08 19:14:35,149 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:14:35,149 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:14:35,149 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:14:35,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [90697650] [2024-11-08 19:14:35,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [90697650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:14:35,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:14:35,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 19:14:35,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310547439] [2024-11-08 19:14:35,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:14:35,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 19:14:35,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:14:35,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 19:14:35,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:14:35,151 INFO L87 Difference]: Start difference. First operand 2603 states and 3014 transitions. Second operand has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 10 states have internal predecessors, (79), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:14:38,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:14:38,960 INFO L93 Difference]: Finished difference Result 5200 states and 6010 transitions. [2024-11-08 19:14:38,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 19:14:38,961 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 10 states have internal predecessors, (79), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 166 [2024-11-08 19:14:38,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:14:38,968 INFO L225 Difference]: With dead ends: 5200 [2024-11-08 19:14:38,968 INFO L226 Difference]: Without dead ends: 2600 [2024-11-08 19:14:38,970 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-08 19:14:38,971 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 68 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 888 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:14:38,971 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 888 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-08 19:14:38,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2600 states. [2024-11-08 19:14:39,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2600 to 2528. [2024-11-08 19:14:39,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2528 states, 2363 states have (on average 1.1481168006771054) internal successors, (2713), 2363 states have internal predecessors, (2713), 104 states have call successors, (104), 60 states have call predecessors, (104), 60 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-08 19:14:39,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2528 states to 2528 states and 2921 transitions. [2024-11-08 19:14:39,267 INFO L78 Accepts]: Start accepts. Automaton has 2528 states and 2921 transitions. Word has length 166 [2024-11-08 19:14:39,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:14:39,267 INFO L471 AbstractCegarLoop]: Abstraction has 2528 states and 2921 transitions. [2024-11-08 19:14:39,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 10 states have internal predecessors, (79), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:14:39,267 INFO L276 IsEmpty]: Start isEmpty. Operand 2528 states and 2921 transitions. [2024-11-08 19:14:39,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-08 19:14:39,269 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:14:39,269 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:14:39,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (94)] Forceful destruction successful, exit code 0 [2024-11-08 19:14:39,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 94 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:14:39,469 INFO L396 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:14:39,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:14:39,470 INFO L85 PathProgramCache]: Analyzing trace with hash -446982332, now seen corresponding path program 1 times [2024-11-08 19:14:39,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:14:39,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1404846661] [2024-11-08 19:14:39,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:39,470 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:14:39,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:14:39,471 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:14:39,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (95)] Waiting until timeout for monitored process [2024-11-08 19:14:40,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:40,046 INFO L255 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-08 19:14:40,048 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:14:40,055 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-11-08 19:14:40,133 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-08 19:14:40,228 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:14:40,228 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:14:40,228 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:14:40,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1404846661] [2024-11-08 19:14:40,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1404846661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:14:40,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:14:40,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-08 19:14:40,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285530598] [2024-11-08 19:14:40,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:14:40,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 19:14:40,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:14:40,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 19:14:40,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:14:40,230 INFO L87 Difference]: Start difference. First operand 2528 states and 2921 transitions. Second operand has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 11 states have internal predecessors, (80), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:14:41,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:14:41,202 INFO L93 Difference]: Finished difference Result 4388 states and 5061 transitions. [2024-11-08 19:14:41,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 19:14:41,202 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 11 states have internal predecessors, (80), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 167 [2024-11-08 19:14:41,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:14:41,210 INFO L225 Difference]: With dead ends: 4388 [2024-11-08 19:14:41,211 INFO L226 Difference]: Without dead ends: 4386 [2024-11-08 19:14:41,211 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2024-11-08 19:14:41,211 INFO L432 NwaCegarLoop]: 215 mSDtfsCounter, 125 mSDsluCounter, 1591 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 1806 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:14:41,211 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 1806 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 19:14:41,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4386 states. [2024-11-08 19:14:41,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4386 to 3768. [2024-11-08 19:14:41,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3768 states, 3603 states have (on average 1.147654732167638) internal successors, (4135), 3603 states have internal predecessors, (4135), 104 states have call successors, (104), 60 states have call predecessors, (104), 60 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-08 19:14:41,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3768 states to 3768 states and 4343 transitions. [2024-11-08 19:14:41,520 INFO L78 Accepts]: Start accepts. Automaton has 3768 states and 4343 transitions. Word has length 167 [2024-11-08 19:14:41,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:14:41,521 INFO L471 AbstractCegarLoop]: Abstraction has 3768 states and 4343 transitions. [2024-11-08 19:14:41,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 11 states have internal predecessors, (80), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:14:41,521 INFO L276 IsEmpty]: Start isEmpty. Operand 3768 states and 4343 transitions. [2024-11-08 19:14:41,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-08 19:14:41,523 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:14:41,523 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:14:41,530 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (95)] Ended with exit code 0 [2024-11-08 19:14:41,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 95 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:14:41,724 INFO L396 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:14:41,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:14:41,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1256328958, now seen corresponding path program 1 times [2024-11-08 19:14:41,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:14:41,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1849191495] [2024-11-08 19:14:41,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:41,725 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:14:41,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:14:41,726 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:14:41,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (96)] Waiting until timeout for monitored process [2024-11-08 19:14:42,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:42,376 INFO L255 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-08 19:14:42,380 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:14:42,383 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-08 19:14:42,506 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2024-11-08 19:14:42,717 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:14:42,717 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 32 [2024-11-08 19:14:43,834 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:14:43,834 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 37 [2024-11-08 19:14:44,272 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 83 proven. 48 refuted. 0 times theorem prover too weak. 481 trivial. 0 not checked. [2024-11-08 19:14:44,273 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:14:44,485 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:14:44,485 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:14:44,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1849191495] [2024-11-08 19:14:44,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1849191495] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:14:44,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:14:44,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 13 [2024-11-08 19:14:44,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338700385] [2024-11-08 19:14:44,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:14:44,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:14:44,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:14:44,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:14:44,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-08 19:14:44,487 INFO L87 Difference]: Start difference. First operand 3768 states and 4343 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:14:44,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:14:44,897 INFO L93 Difference]: Finished difference Result 7560 states and 8710 transitions. [2024-11-08 19:14:44,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 19:14:44,897 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 167 [2024-11-08 19:14:44,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:14:44,906 INFO L225 Difference]: With dead ends: 7560 [2024-11-08 19:14:44,906 INFO L226 Difference]: Without dead ends: 3795 [2024-11-08 19:14:44,909 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 320 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-11-08 19:14:44,909 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 86 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:14:44,909 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 584 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:14:44,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3795 states. [2024-11-08 19:14:45,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3795 to 3768. [2024-11-08 19:14:45,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3768 states, 3603 states have (on average 1.1470996391895643) internal successors, (4133), 3603 states have internal predecessors, (4133), 104 states have call successors, (104), 60 states have call predecessors, (104), 60 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-08 19:14:45,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3768 states to 3768 states and 4341 transitions. [2024-11-08 19:14:45,239 INFO L78 Accepts]: Start accepts. Automaton has 3768 states and 4341 transitions. Word has length 167 [2024-11-08 19:14:45,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:14:45,240 INFO L471 AbstractCegarLoop]: Abstraction has 3768 states and 4341 transitions. [2024-11-08 19:14:45,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:14:45,240 INFO L276 IsEmpty]: Start isEmpty. Operand 3768 states and 4341 transitions. [2024-11-08 19:14:45,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-08 19:14:45,242 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:14:45,242 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:14:45,249 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (96)] Ended with exit code 0 [2024-11-08 19:14:45,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 96 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:14:45,443 INFO L396 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:14:45,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:14:45,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1798597122, now seen corresponding path program 1 times [2024-11-08 19:14:45,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:14:45,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1675866785] [2024-11-08 19:14:45,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:45,443 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:14:45,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:14:45,444 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:14:45,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (97)] Waiting until timeout for monitored process [2024-11-08 19:14:46,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:46,031 INFO L255 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 19:14:46,035 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:14:46,048 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-08 19:14:46,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-08 19:14:46,240 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:14:46,240 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:14:46,240 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:14:46,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1675866785] [2024-11-08 19:14:46,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1675866785] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:14:46,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:14:46,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 19:14:46,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526082741] [2024-11-08 19:14:46,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:14:46,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 19:14:46,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:14:46,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 19:14:46,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-08 19:14:46,242 INFO L87 Difference]: Start difference. First operand 3768 states and 4341 transitions. Second operand has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 12 states have internal predecessors, (80), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:14:47,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:14:47,369 INFO L93 Difference]: Finished difference Result 4391 states and 5061 transitions. [2024-11-08 19:14:47,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 19:14:47,369 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 12 states have internal predecessors, (80), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 167 [2024-11-08 19:14:47,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:14:47,379 INFO L225 Difference]: With dead ends: 4391 [2024-11-08 19:14:47,379 INFO L226 Difference]: Without dead ends: 4389 [2024-11-08 19:14:47,380 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2024-11-08 19:14:47,381 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 125 mSDsluCounter, 1679 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 1893 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 19:14:47,381 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 1893 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 19:14:47,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4389 states. [2024-11-08 19:14:47,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4389 to 3768. [2024-11-08 19:14:47,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3768 states, 3603 states have (on average 1.1470996391895643) internal successors, (4133), 3603 states have internal predecessors, (4133), 104 states have call successors, (104), 60 states have call predecessors, (104), 60 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-08 19:14:47,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3768 states to 3768 states and 4341 transitions. [2024-11-08 19:14:47,780 INFO L78 Accepts]: Start accepts. Automaton has 3768 states and 4341 transitions. Word has length 167 [2024-11-08 19:14:47,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:14:47,780 INFO L471 AbstractCegarLoop]: Abstraction has 3768 states and 4341 transitions. [2024-11-08 19:14:47,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 12 states have internal predecessors, (80), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:14:47,781 INFO L276 IsEmpty]: Start isEmpty. Operand 3768 states and 4341 transitions. [2024-11-08 19:14:47,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-08 19:14:47,783 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:14:47,783 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:14:47,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (97)] Forceful destruction successful, exit code 0 [2024-11-08 19:14:47,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 97 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:14:47,984 INFO L396 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:14:47,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:14:47,984 INFO L85 PathProgramCache]: Analyzing trace with hash 989250496, now seen corresponding path program 1 times [2024-11-08 19:14:47,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:14:47,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1992905724] [2024-11-08 19:14:47,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:47,985 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:14:47,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:14:47,986 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:14:47,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (98)] Waiting until timeout for monitored process [2024-11-08 19:14:48,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:48,648 INFO L255 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-08 19:14:48,652 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:14:48,656 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 19:14:48,806 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 20 [2024-11-08 19:14:49,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 28 [2024-11-08 19:14:49,723 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:14:49,723 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 34 [2024-11-08 19:14:49,917 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 158 proven. 84 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2024-11-08 19:14:49,917 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:14:50,794 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 19:14:50,794 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:14:50,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1992905724] [2024-11-08 19:14:50,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1992905724] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:14:50,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:14:50,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [19] total 27 [2024-11-08 19:14:50,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706498874] [2024-11-08 19:14:50,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:14:50,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 19:14:50,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:14:50,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 19:14:50,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=629, Unknown=0, NotChecked=0, Total=702 [2024-11-08 19:14:50,796 INFO L87 Difference]: Start difference. First operand 3768 states and 4341 transitions. Second operand has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 11 states have internal predecessors, (80), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:14:51,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:14:51,846 INFO L93 Difference]: Finished difference Result 3812 states and 4387 transitions. [2024-11-08 19:14:51,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 19:14:51,847 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 11 states have internal predecessors, (80), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 167 [2024-11-08 19:14:51,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:14:51,854 INFO L225 Difference]: With dead ends: 3812 [2024-11-08 19:14:51,854 INFO L226 Difference]: Without dead ends: 3810 [2024-11-08 19:14:51,855 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 307 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=104, Invalid=1018, Unknown=0, NotChecked=0, Total=1122 [2024-11-08 19:14:51,855 INFO L432 NwaCegarLoop]: 228 mSDtfsCounter, 56 mSDsluCounter, 1854 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 2082 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 19:14:51,856 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 2082 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 19:14:51,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3810 states. [2024-11-08 19:14:52,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3810 to 3755. [2024-11-08 19:14:52,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3755 states, 3590 states have (on average 1.1467966573816155) internal successors, (4117), 3590 states have internal predecessors, (4117), 104 states have call successors, (104), 60 states have call predecessors, (104), 60 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-08 19:14:52,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3755 states to 3755 states and 4325 transitions. [2024-11-08 19:14:52,170 INFO L78 Accepts]: Start accepts. Automaton has 3755 states and 4325 transitions. Word has length 167 [2024-11-08 19:14:52,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:14:52,171 INFO L471 AbstractCegarLoop]: Abstraction has 3755 states and 4325 transitions. [2024-11-08 19:14:52,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 11 states have internal predecessors, (80), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:14:52,171 INFO L276 IsEmpty]: Start isEmpty. Operand 3755 states and 4325 transitions. [2024-11-08 19:14:52,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2024-11-08 19:14:52,174 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:14:52,174 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:14:52,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (98)] Forceful destruction successful, exit code 0 [2024-11-08 19:14:52,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 98 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:14:52,375 INFO L396 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:14:52,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:14:52,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1498392285, now seen corresponding path program 1 times [2024-11-08 19:14:52,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:14:52,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [534962131] [2024-11-08 19:14:52,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:52,376 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:14:52,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:14:52,377 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:14:52,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (99)] Waiting until timeout for monitored process [2024-11-08 19:14:53,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:53,279 INFO L255 TraceCheckSpWp]: Trace formula consists of 614 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 19:14:53,282 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:14:53,363 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:14:53,363 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 16 [2024-11-08 19:14:53,414 INFO L134 CoverageAnalysis]: Checked inductivity of 2600 backedges. 1357 proven. 0 refuted. 0 times theorem prover too weak. 1243 trivial. 0 not checked. [2024-11-08 19:14:53,414 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:14:53,415 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:14:53,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [534962131] [2024-11-08 19:14:53,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [534962131] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:14:53,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:14:53,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 19:14:53,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944600590] [2024-11-08 19:14:53,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:14:53,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:14:53,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:14:53,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:14:53,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:14:53,416 INFO L87 Difference]: Start difference. First operand 3755 states and 4325 transitions. Second operand has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2024-11-08 19:14:54,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:14:54,270 INFO L93 Difference]: Finished difference Result 6994 states and 7969 transitions. [2024-11-08 19:14:54,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 19:14:54,271 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 318 [2024-11-08 19:14:54,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:14:54,280 INFO L225 Difference]: With dead ends: 6994 [2024-11-08 19:14:54,280 INFO L226 Difference]: Without dead ends: 4760 [2024-11-08 19:14:54,281 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:14:54,281 INFO L432 NwaCegarLoop]: 222 mSDtfsCounter, 122 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 767 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:14:54,281 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 767 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:14:54,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4760 states. [2024-11-08 19:14:54,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4760 to 3755. [2024-11-08 19:14:54,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3755 states, 3590 states have (on average 1.1286908077994429) internal successors, (4052), 3590 states have internal predecessors, (4052), 104 states have call successors, (104), 60 states have call predecessors, (104), 60 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-08 19:14:54,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3755 states to 3755 states and 4260 transitions. [2024-11-08 19:14:54,598 INFO L78 Accepts]: Start accepts. Automaton has 3755 states and 4260 transitions. Word has length 318 [2024-11-08 19:14:54,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:14:54,598 INFO L471 AbstractCegarLoop]: Abstraction has 3755 states and 4260 transitions. [2024-11-08 19:14:54,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2024-11-08 19:14:54,599 INFO L276 IsEmpty]: Start isEmpty. Operand 3755 states and 4260 transitions. [2024-11-08 19:14:54,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2024-11-08 19:14:54,602 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:14:54,602 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:14:54,611 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (99)] Ended with exit code 0 [2024-11-08 19:14:54,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 99 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:14:54,802 INFO L396 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:14:54,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:14:54,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1819170012, now seen corresponding path program 1 times [2024-11-08 19:14:54,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:14:54,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [73010402] [2024-11-08 19:14:54,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:54,804 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:14:54,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:14:54,805 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:14:54,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (100)] Waiting until timeout for monitored process [2024-11-08 19:14:55,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:55,864 INFO L255 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-08 19:14:55,869 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:14:56,174 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-08 19:14:56,431 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 32 [2024-11-08 19:14:57,392 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 32 [2024-11-08 19:14:57,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 65 [2024-11-08 19:14:57,966 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:14:57,967 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 194 treesize of output 80 [2024-11-08 19:14:58,108 INFO L134 CoverageAnalysis]: Checked inductivity of 2600 backedges. 1212 proven. 6 refuted. 0 times theorem prover too weak. 1382 trivial. 0 not checked. [2024-11-08 19:14:58,108 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:14:58,638 INFO L134 CoverageAnalysis]: Checked inductivity of 2600 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 2578 trivial. 0 not checked. [2024-11-08 19:14:58,638 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:14:58,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [73010402] [2024-11-08 19:14:58,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [73010402] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:14:58,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:14:58,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [14] total 20 [2024-11-08 19:14:58,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435760466] [2024-11-08 19:14:58,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:14:58,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 19:14:58,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:14:58,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 19:14:58,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2024-11-08 19:14:58,640 INFO L87 Difference]: Start difference. First operand 3755 states and 4260 transitions. Second operand has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:15:00,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:15:00,065 INFO L93 Difference]: Finished difference Result 6203 states and 7030 transitions. [2024-11-08 19:15:00,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 19:15:00,066 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 320 [2024-11-08 19:15:00,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:15:00,077 INFO L225 Difference]: With dead ends: 6203 [2024-11-08 19:15:00,077 INFO L226 Difference]: Without dead ends: 3969 [2024-11-08 19:15:00,078 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 647 GetRequests, 620 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=119, Invalid=693, Unknown=0, NotChecked=0, Total=812 [2024-11-08 19:15:00,079 INFO L432 NwaCegarLoop]: 212 mSDtfsCounter, 160 mSDsluCounter, 1085 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1297 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 19:15:00,079 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 1297 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 19:15:00,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3969 states. [2024-11-08 19:15:00,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3969 to 3775. [2024-11-08 19:15:00,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3775 states, 3610 states have (on average 1.1293628808864267) internal successors, (4077), 3610 states have internal predecessors, (4077), 104 states have call successors, (104), 60 states have call predecessors, (104), 60 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-08 19:15:00,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3775 states to 3775 states and 4285 transitions. [2024-11-08 19:15:00,430 INFO L78 Accepts]: Start accepts. Automaton has 3775 states and 4285 transitions. Word has length 320 [2024-11-08 19:15:00,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:15:00,430 INFO L471 AbstractCegarLoop]: Abstraction has 3775 states and 4285 transitions. [2024-11-08 19:15:00,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:15:00,431 INFO L276 IsEmpty]: Start isEmpty. Operand 3775 states and 4285 transitions. [2024-11-08 19:15:00,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2024-11-08 19:15:00,433 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:15:00,434 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:15:00,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (100)] Forceful destruction successful, exit code 0 [2024-11-08 19:15:00,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 100 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:15:00,634 INFO L396 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:15:00,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:15:00,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1976266314, now seen corresponding path program 1 times [2024-11-08 19:15:00,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:15:00,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1191597676] [2024-11-08 19:15:00,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:15:00,635 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:15:00,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:15:00,636 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:15:00,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (101)] Waiting until timeout for monitored process [2024-11-08 19:15:01,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:15:01,805 INFO L255 TraceCheckSpWp]: Trace formula consists of 630 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-08 19:15:01,810 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:15:02,110 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-08 19:15:02,432 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 30 [2024-11-08 19:15:03,508 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 30 [2024-11-08 19:15:03,577 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 63 [2024-11-08 19:15:04,118 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:15:04,118 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 193 treesize of output 79 [2024-11-08 19:15:04,258 INFO L134 CoverageAnalysis]: Checked inductivity of 2600 backedges. 1220 proven. 39 refuted. 0 times theorem prover too weak. 1341 trivial. 0 not checked. [2024-11-08 19:15:04,258 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:15:04,996 INFO L134 CoverageAnalysis]: Checked inductivity of 2600 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 2578 trivial. 0 not checked. [2024-11-08 19:15:04,996 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:15:04,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1191597676] [2024-11-08 19:15:04,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1191597676] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:15:04,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:15:04,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [19] total 27 [2024-11-08 19:15:04,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855551223] [2024-11-08 19:15:04,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:15:04,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 19:15:04,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:15:04,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 19:15:04,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=591, Unknown=0, NotChecked=0, Total=702 [2024-11-08 19:15:04,998 INFO L87 Difference]: Start difference. First operand 3775 states and 4285 transitions. Second operand has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 11 states have internal predecessors, (111), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:15:07,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:15:07,484 INFO L93 Difference]: Finished difference Result 6385 states and 7231 transitions. [2024-11-08 19:15:07,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-08 19:15:07,485 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 11 states have internal predecessors, (111), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 322 [2024-11-08 19:15:07,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:15:07,491 INFO L225 Difference]: With dead ends: 6385 [2024-11-08 19:15:07,491 INFO L226 Difference]: Without dead ends: 0 [2024-11-08 19:15:07,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 656 GetRequests, 617 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=229, Invalid=1411, Unknown=0, NotChecked=0, Total=1640 [2024-11-08 19:15:07,494 INFO L432 NwaCegarLoop]: 251 mSDtfsCounter, 230 mSDsluCounter, 1355 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 1606 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:15:07,495 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 1606 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 19:15:07,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-08 19:15:07,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-08 19:15:07,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:15:07,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-08 19:15:07,501 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 322 [2024-11-08 19:15:07,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:15:07,501 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 19:15:07,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 11 states have internal predecessors, (111), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 19:15:07,501 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-08 19:15:07,502 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 19:15:07,504 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 19:15:07,520 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (101)] Ended with exit code 0 [2024-11-08 19:15:07,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 101 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de012362-d9de-46ac-b787-0231269317d3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:15:07,707 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:15:07,708 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-08 19:16:41,581 WARN L286 SmtUtils]: Spent 1.56m on a formula simplification. DAG size of input: 394 DAG size of output: 856 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-08 19:17:10,074 WARN L286 SmtUtils]: Spent 28.49s on a formula simplification. DAG size of input: 361 DAG size of output: 484 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or)