./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-97.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/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_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-97.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/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_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/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 b62f33a7ccb058dd1bccedc0e4fe3fa92f34517f00ef57b41d6990849c30929b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:18:13,745 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:18:13,844 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 19:18:13,853 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:18:13,854 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 19:18:13,880 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:18:13,881 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 19:18:13,881 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 19:18:13,882 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 19:18:13,883 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 19:18:13,883 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:18:13,884 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 19:18:13,884 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:18:13,885 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:18:13,885 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 19:18:13,886 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:18:13,886 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:18:13,887 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 19:18:13,887 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 19:18:13,887 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 19:18:13,888 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:18:13,892 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:18:13,892 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:18:13,893 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:18:13,893 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:18:13,893 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 19:18:13,893 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:18:13,894 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:18:13,894 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:18:13,894 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 19:18:13,895 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 19:18:13,895 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 19:18:13,896 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:18:13,896 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:18:13,899 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:18:13,899 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:18:13,900 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 19:18:13,900 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 19:18:13,901 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 19:18:13,909 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 19:18:13,909 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 19:18:13,910 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 19:18:13,910 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_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b62f33a7ccb058dd1bccedc0e4fe3fa92f34517f00ef57b41d6990849c30929b [2024-11-08 19:18:14,220 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:18:14,246 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:18:14,249 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:18:14,251 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:18:14,251 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:18:14,253 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-97.i Unable to find full path for "g++" [2024-11-08 19:18:16,357 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:18:16,571 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:18:16,572 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-97.i [2024-11-08 19:18:16,581 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/data/38379d922/db9e06b728624265a2be0f36927cac06/FLAG1f208c196 [2024-11-08 19:18:16,942 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/data/38379d922/db9e06b728624265a2be0f36927cac06 [2024-11-08 19:18:16,945 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:18:16,946 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:18:16,948 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:18:16,948 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:18:16,954 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:18:16,955 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:18:16" (1/1) ... [2024-11-08 19:18:16,957 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74a0e128 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:16, skipping insertion in model container [2024-11-08 19:18:16,957 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:18:16" (1/1) ... [2024-11-08 19:18:16,987 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:18:17,168 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_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-97.i[916,929] [2024-11-08 19:18:17,228 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:18:17,241 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:18:17,260 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_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-97.i[916,929] [2024-11-08 19:18:17,297 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:18:17,323 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:18:17,324 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:17 WrapperNode [2024-11-08 19:18:17,324 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:18:17,326 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:18:17,326 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:18:17,326 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:18:17,334 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:17" (1/1) ... [2024-11-08 19:18:17,347 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:17" (1/1) ... [2024-11-08 19:18:17,390 INFO L138 Inliner]: procedures = 29, calls = 149, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 437 [2024-11-08 19:18:17,391 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:18:17,392 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:18:17,392 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:18:17,392 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:18:17,404 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:17" (1/1) ... [2024-11-08 19:18:17,404 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:17" (1/1) ... [2024-11-08 19:18:17,410 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:17" (1/1) ... [2024-11-08 19:18:17,430 INFO L175 MemorySlicer]: Split 116 memory accesses to 6 slices as follows [2, 25, 17, 25, 34, 13]. 29 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 3, 2, 3, 5, 2]. The 19 writes are split as follows [0, 4, 2, 4, 7, 2]. [2024-11-08 19:18:17,430 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:17" (1/1) ... [2024-11-08 19:18:17,430 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:17" (1/1) ... [2024-11-08 19:18:17,450 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:17" (1/1) ... [2024-11-08 19:18:17,455 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:17" (1/1) ... [2024-11-08 19:18:17,458 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:17" (1/1) ... [2024-11-08 19:18:17,461 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:17" (1/1) ... [2024-11-08 19:18:17,467 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:18:17,468 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:18:17,468 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:18:17,468 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:18:17,469 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:17" (1/1) ... [2024-11-08 19:18:17,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:18:17,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:18:17,520 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 19:18:17,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 19:18:17,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 19:18:17,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-08 19:18:17,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-08 19:18:17,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-08 19:18:17,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-08 19:18:17,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-08 19:18:17,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-08 19:18:17,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 19:18:17,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 19:18:17,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 19:18:17,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-08 19:18:17,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-08 19:18:17,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-08 19:18:17,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-08 19:18:17,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-08 19:18:17,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-08 19:18:17,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-08 19:18:17,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-08 19:18:17,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-08 19:18:17,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 19:18:17,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 19:18:17,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 19:18:17,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-08 19:18:17,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-08 19:18:17,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-08 19:18:17,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-08 19:18:17,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-08 19:18:17,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-08 19:18:17,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-08 19:18:17,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-08 19:18:17,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-11-08 19:18:17,582 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 19:18:17,582 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 19:18:17,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 19:18:17,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 19:18:17,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 19:18:17,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 19:18:17,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-08 19:18:17,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-08 19:18:17,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:18:17,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:18:17,781 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:18:17,783 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:18:18,457 INFO L? ?]: Removed 86 outVars from TransFormulas that were not future-live. [2024-11-08 19:18:18,457 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:18:18,475 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:18:18,475 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 19:18:18,479 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:18:18 BoogieIcfgContainer [2024-11-08 19:18:18,480 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:18:18,482 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 19:18:18,483 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 19:18:18,490 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 19:18:18,491 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 07:18:16" (1/3) ... [2024-11-08 19:18:18,492 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36bdc9ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:18:18, skipping insertion in model container [2024-11-08 19:18:18,492 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:17" (2/3) ... [2024-11-08 19:18:18,492 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36bdc9ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:18:18, skipping insertion in model container [2024-11-08 19:18:18,492 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:18:18" (3/3) ... [2024-11-08 19:18:18,494 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-97.i [2024-11-08 19:18:18,522 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 19:18:18,523 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 19:18:18,620 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 19:18:18,631 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;@4cab49eb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 19:18:18,631 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 19:18:18,638 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 88 states have (on average 1.3977272727272727) internal successors, (123), 89 states have internal predecessors, (123), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 19:18:18,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-08 19:18:18,658 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:18,659 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:18:18,660 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:18,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:18,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1228429198, now seen corresponding path program 1 times [2024-11-08 19:18:18,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:18,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565834807] [2024-11-08 19:18:18,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:18,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:18,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:19,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:18:19,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:19,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:18:19,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:19,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 19:18:19,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:19,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 19:18:19,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:19,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 19:18:19,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:19,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 19:18:19,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:19,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:18:19,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:19,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 19:18:19,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:19,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 19:18:19,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:19,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 19:18:19,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:19,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 19:18:19,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:19,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 19:18:19,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:19,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 19:18:19,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:19,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 19:18:19,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:19,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 19:18:19,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:19,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 19:18:19,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:19,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 19:18:19,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:19,234 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 19:18:19,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:18:19,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565834807] [2024-11-08 19:18:19,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565834807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:18:19,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:18:19,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 19:18:19,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050954796] [2024-11-08 19:18:19,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:18:19,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 19:18:19,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:18:19,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 19:18:19,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 19:18:19,280 INFO L87 Difference]: Start difference. First operand has 108 states, 88 states have (on average 1.3977272727272727) internal successors, (123), 89 states have internal predecessors, (123), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 19:18:19,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:19,329 INFO L93 Difference]: Finished difference Result 209 states and 325 transitions. [2024-11-08 19:18:19,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 19:18:19,332 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 134 [2024-11-08 19:18:19,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:19,347 INFO L225 Difference]: With dead ends: 209 [2024-11-08 19:18:19,347 INFO L226 Difference]: Without dead ends: 104 [2024-11-08 19:18:19,352 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 53 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 19:18:19,360 INFO L432 NwaCegarLoop]: 150 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, 150 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 19:18:19,361 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:18:19,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-08 19:18:19,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2024-11-08 19:18:19,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 85 states have (on average 1.3647058823529412) internal successors, (116), 85 states have internal predecessors, (116), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 19:18:19,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 150 transitions. [2024-11-08 19:18:19,417 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 150 transitions. Word has length 134 [2024-11-08 19:18:19,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:19,418 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 150 transitions. [2024-11-08 19:18:19,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 19:18:19,419 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 150 transitions. [2024-11-08 19:18:19,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-08 19:18:19,422 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:19,422 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:18:19,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 19:18:19,423 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:19,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:19,423 INFO L85 PathProgramCache]: Analyzing trace with hash 117852192, now seen corresponding path program 1 times [2024-11-08 19:18:19,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:19,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420265395] [2024-11-08 19:18:19,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:19,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:19,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:19,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:18:19,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:19,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:18:19,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:19,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 19:18:19,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:19,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 19:18:19,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:19,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 19:18:19,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:19,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 19:18:19,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:19,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:18:19,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:19,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 19:18:19,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:19,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 19:18:19,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:19,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 19:18:19,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:19,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 19:18:19,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:19,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 19:18:19,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:19,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 19:18:19,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:19,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 19:18:19,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:19,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 19:18:19,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:19,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 19:18:19,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:19,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 19:18:19,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:19,995 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 19:18:19,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:18:19,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420265395] [2024-11-08 19:18:19,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420265395] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:18:19,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:18:19,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 19:18:19,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81299874] [2024-11-08 19:18:19,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:18:20,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:18:20,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:18:20,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:18:20,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:18:20,005 INFO L87 Difference]: Start difference. First operand 104 states and 150 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:18:20,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:20,067 INFO L93 Difference]: Finished difference Result 207 states and 300 transitions. [2024-11-08 19:18:20,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:18:20,067 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134 [2024-11-08 19:18:20,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:20,072 INFO L225 Difference]: With dead ends: 207 [2024-11-08 19:18:20,072 INFO L226 Difference]: Without dead ends: 106 [2024-11-08 19:18:20,073 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 37 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 19:18:20,074 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 0 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:20,075 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 433 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:18:20,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-08 19:18:20,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2024-11-08 19:18:20,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 87 states have (on average 1.3563218390804597) internal successors, (118), 87 states have internal predecessors, (118), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 19:18:20,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 152 transitions. [2024-11-08 19:18:20,089 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 152 transitions. Word has length 134 [2024-11-08 19:18:20,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:20,091 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 152 transitions. [2024-11-08 19:18:20,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:18:20,092 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 152 transitions. [2024-11-08 19:18:20,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-08 19:18:20,094 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:20,095 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:18:20,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 19:18:20,096 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:20,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:20,097 INFO L85 PathProgramCache]: Analyzing trace with hash -564947822, now seen corresponding path program 1 times [2024-11-08 19:18:20,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:20,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308251321] [2024-11-08 19:18:20,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:20,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:20,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:20,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:18:20,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:20,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:18:20,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:20,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 19:18:20,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:20,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 19:18:20,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:20,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 19:18:20,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:20,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 19:18:20,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:20,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:18:20,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:20,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 19:18:20,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:20,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 19:18:20,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:20,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 19:18:20,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:20,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 19:18:20,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:20,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 19:18:20,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:20,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 19:18:20,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:20,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 19:18:20,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:20,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 19:18:20,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:20,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 19:18:20,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:20,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 19:18:20,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:20,440 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 19:18:20,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:18:20,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308251321] [2024-11-08 19:18:20,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308251321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:18:20,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:18:20,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 19:18:20,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224780949] [2024-11-08 19:18:20,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:18:20,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:18:20,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:18:20,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:18:20,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:18:20,447 INFO L87 Difference]: Start difference. First operand 106 states and 152 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:18:20,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:20,503 INFO L93 Difference]: Finished difference Result 212 states and 305 transitions. [2024-11-08 19:18:20,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:18:20,507 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 136 [2024-11-08 19:18:20,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:20,509 INFO L225 Difference]: With dead ends: 212 [2024-11-08 19:18:20,509 INFO L226 Difference]: Without dead ends: 109 [2024-11-08 19:18:20,510 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 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 19:18:20,515 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 1 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:20,516 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 430 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:18:20,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-08 19:18:20,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 108. [2024-11-08 19:18:20,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 89 states have (on average 1.348314606741573) internal successors, (120), 89 states have internal predecessors, (120), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 19:18:20,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 154 transitions. [2024-11-08 19:18:20,533 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 154 transitions. Word has length 136 [2024-11-08 19:18:20,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:20,533 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 154 transitions. [2024-11-08 19:18:20,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:18:20,534 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 154 transitions. [2024-11-08 19:18:20,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-08 19:18:20,542 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:20,542 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:18:20,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 19:18:20,543 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:20,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:20,543 INFO L85 PathProgramCache]: Analyzing trace with hash 115110548, now seen corresponding path program 1 times [2024-11-08 19:18:20,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:20,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541271201] [2024-11-08 19:18:20,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:20,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:20,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:20,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:18:20,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:20,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:18:20,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:20,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 19:18:20,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:20,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 19:18:20,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:20,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 19:18:20,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:20,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 19:18:20,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:20,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:18:20,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:20,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 19:18:20,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:20,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 19:18:20,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:20,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 19:18:20,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:20,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 19:18:20,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:20,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 19:18:20,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:20,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 19:18:20,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:20,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 19:18:20,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:20,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 19:18:20,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:20,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 19:18:20,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:20,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 19:18:20,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:20,792 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 19:18:20,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:18:20,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541271201] [2024-11-08 19:18:20,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541271201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:18:20,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:18:20,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 19:18:20,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591259682] [2024-11-08 19:18:20,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:18:20,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:18:20,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:18:20,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:18:20,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:18:20,799 INFO L87 Difference]: Start difference. First operand 108 states and 154 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:18:20,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:20,845 INFO L93 Difference]: Finished difference Result 216 states and 309 transitions. [2024-11-08 19:18:20,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:18:20,849 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 136 [2024-11-08 19:18:20,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:20,851 INFO L225 Difference]: With dead ends: 216 [2024-11-08 19:18:20,851 INFO L226 Difference]: Without dead ends: 111 [2024-11-08 19:18:20,852 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 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 19:18:20,853 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 1 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:20,857 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 431 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:18:20,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-08 19:18:20,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 110. [2024-11-08 19:18:20,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 91 states have (on average 1.3406593406593406) internal successors, (122), 91 states have internal predecessors, (122), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 19:18:20,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 156 transitions. [2024-11-08 19:18:20,874 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 156 transitions. Word has length 136 [2024-11-08 19:18:20,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:20,875 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 156 transitions. [2024-11-08 19:18:20,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:18:20,876 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 156 transitions. [2024-11-08 19:18:20,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-08 19:18:20,880 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:20,880 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:18:20,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 19:18:20,881 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:20,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:20,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1890117910, now seen corresponding path program 1 times [2024-11-08 19:18:20,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:20,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306115606] [2024-11-08 19:18:20,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:20,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:20,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:21,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:18:21,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:21,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:18:21,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:21,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 19:18:21,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:21,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 19:18:21,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:21,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 19:18:21,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:21,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 19:18:21,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:21,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:18:21,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:21,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 19:18:21,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:21,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 19:18:21,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:21,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 19:18:21,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:21,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 19:18:21,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:21,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 19:18:21,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:21,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 19:18:21,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:21,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 19:18:21,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:21,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 19:18:21,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:21,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 19:18:21,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:21,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 19:18:21,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:21,114 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 19:18:21,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:18:21,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306115606] [2024-11-08 19:18:21,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306115606] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:18:21,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:18:21,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 19:18:21,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071750379] [2024-11-08 19:18:21,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:18:21,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:18:21,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:18:21,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:18:21,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:18:21,119 INFO L87 Difference]: Start difference. First operand 110 states and 156 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:18:21,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:21,165 INFO L93 Difference]: Finished difference Result 220 states and 313 transitions. [2024-11-08 19:18:21,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:18:21,166 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 136 [2024-11-08 19:18:21,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:21,168 INFO L225 Difference]: With dead ends: 220 [2024-11-08 19:18:21,169 INFO L226 Difference]: Without dead ends: 113 [2024-11-08 19:18:21,169 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 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 19:18:21,171 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 1 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:21,171 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 433 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:18:21,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-08 19:18:21,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 112. [2024-11-08 19:18:21,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 93 states have (on average 1.3333333333333333) internal successors, (124), 93 states have internal predecessors, (124), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 19:18:21,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 158 transitions. [2024-11-08 19:18:21,184 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 158 transitions. Word has length 136 [2024-11-08 19:18:21,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:21,186 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 158 transitions. [2024-11-08 19:18:21,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:18:21,187 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 158 transitions. [2024-11-08 19:18:21,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-08 19:18:21,188 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:21,188 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:18:21,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 19:18:21,189 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:21,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:21,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1891964952, now seen corresponding path program 1 times [2024-11-08 19:18:21,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:21,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456916391] [2024-11-08 19:18:21,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:21,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:21,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:22,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:18:22,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:22,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:18:22,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:22,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 19:18:22,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:22,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 19:18:22,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:22,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 19:18:22,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:22,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 19:18:22,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:22,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:18:22,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:22,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 19:18:22,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:22,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 19:18:22,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:22,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 19:18:22,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:22,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 19:18:22,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:22,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 19:18:22,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:22,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 19:18:22,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:22,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 19:18:22,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:22,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 19:18:22,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:22,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 19:18:22,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:22,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 19:18:22,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:22,085 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 19:18:22,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:18:22,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456916391] [2024-11-08 19:18:22,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456916391] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:18:22,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:18:22,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 19:18:22,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828062661] [2024-11-08 19:18:22,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:18:22,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:18:22,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:18:22,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:18:22,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:18:22,089 INFO L87 Difference]: Start difference. First operand 112 states and 158 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:18:22,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:22,564 INFO L93 Difference]: Finished difference Result 312 states and 439 transitions. [2024-11-08 19:18:22,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 19:18:22,565 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 136 [2024-11-08 19:18:22,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:22,567 INFO L225 Difference]: With dead ends: 312 [2024-11-08 19:18:22,567 INFO L226 Difference]: Without dead ends: 203 [2024-11-08 19:18:22,568 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:18:22,569 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 257 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:22,569 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 596 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 19:18:22,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2024-11-08 19:18:22,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 114. [2024-11-08 19:18:22,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 95 states have (on average 1.3263157894736841) internal successors, (126), 95 states have internal predecessors, (126), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 19:18:22,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 160 transitions. [2024-11-08 19:18:22,583 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 160 transitions. Word has length 136 [2024-11-08 19:18:22,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:22,584 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 160 transitions. [2024-11-08 19:18:22,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:18:22,584 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 160 transitions. [2024-11-08 19:18:22,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-08 19:18:22,586 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:22,587 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:18:22,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 19:18:22,587 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:22,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:22,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1476739103, now seen corresponding path program 1 times [2024-11-08 19:18:22,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:22,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453398010] [2024-11-08 19:18:22,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:22,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:22,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:23,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:18:23,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:23,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:18:23,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:23,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 19:18:23,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:24,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 19:18:24,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:24,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 19:18:24,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:24,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 19:18:24,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:24,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:18:24,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:24,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 19:18:24,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:24,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 19:18:24,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:24,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 19:18:24,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:24,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 19:18:24,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:24,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 19:18:24,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:24,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 19:18:24,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:24,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 19:18:24,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:24,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 19:18:24,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:24,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 19:18:24,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:24,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 19:18:24,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:24,100 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-08 19:18:24,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:18:24,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453398010] [2024-11-08 19:18:24,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453398010] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:18:24,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [982886937] [2024-11-08 19:18:24,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:24,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:18:24,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:18:24,104 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:18:24,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 19:18:24,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:24,379 INFO L255 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-08 19:18:24,391 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:18:24,448 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 19:18:24,579 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 15 [2024-11-08 19:18:24,983 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 19:18:25,055 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 16 proven. 48 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-08 19:18:25,055 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:18:25,600 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-08 19:18:25,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [982886937] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:18:25,601 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:18:25,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 21 [2024-11-08 19:18:25,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543681780] [2024-11-08 19:18:25,601 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:18:25,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-08 19:18:25,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:18:25,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-08 19:18:25,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=349, Unknown=0, NotChecked=0, Total=420 [2024-11-08 19:18:25,603 INFO L87 Difference]: Start difference. First operand 114 states and 160 transitions. Second operand has 21 states, 18 states have (on average 5.722222222222222) internal successors, (103), 21 states have internal predecessors, (103), 5 states have call successors, (51), 2 states have call predecessors, (51), 4 states have return successors, (51), 2 states have call predecessors, (51), 5 states have call successors, (51) [2024-11-08 19:18:26,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:26,923 INFO L93 Difference]: Finished difference Result 348 states and 484 transitions. [2024-11-08 19:18:26,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-08 19:18:26,924 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 18 states have (on average 5.722222222222222) internal successors, (103), 21 states have internal predecessors, (103), 5 states have call successors, (51), 2 states have call predecessors, (51), 4 states have return successors, (51), 2 states have call predecessors, (51), 5 states have call successors, (51) Word has length 136 [2024-11-08 19:18:26,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:26,926 INFO L225 Difference]: With dead ends: 348 [2024-11-08 19:18:26,929 INFO L226 Difference]: Without dead ends: 237 [2024-11-08 19:18:26,930 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 292 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=284, Invalid=1198, Unknown=0, NotChecked=0, Total=1482 [2024-11-08 19:18:26,931 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 597 mSDsluCounter, 1127 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 1271 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:26,932 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [597 Valid, 1271 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 19:18:26,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2024-11-08 19:18:26,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 129. [2024-11-08 19:18:26,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 109 states have (on average 1.3302752293577982) internal successors, (145), 109 states have internal predecessors, (145), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 19:18:26,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 179 transitions. [2024-11-08 19:18:26,980 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 179 transitions. Word has length 136 [2024-11-08 19:18:26,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:26,980 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 179 transitions. [2024-11-08 19:18:26,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 18 states have (on average 5.722222222222222) internal successors, (103), 21 states have internal predecessors, (103), 5 states have call successors, (51), 2 states have call predecessors, (51), 4 states have return successors, (51), 2 states have call predecessors, (51), 5 states have call successors, (51) [2024-11-08 19:18:26,981 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 179 transitions. [2024-11-08 19:18:26,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-08 19:18:26,983 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:26,983 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:18:27,006 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 19:18:27,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-08 19:18:27,184 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:27,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:27,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1610752609, now seen corresponding path program 1 times [2024-11-08 19:18:27,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:27,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009639555] [2024-11-08 19:18:27,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:27,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:27,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:27,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:18:27,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:27,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:18:27,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:27,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 19:18:27,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:27,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 19:18:27,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:27,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 19:18:27,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:27,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 19:18:27,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:27,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:18:27,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:27,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 19:18:27,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:27,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 19:18:27,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:27,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 19:18:27,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:27,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 19:18:27,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:27,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 19:18:27,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:27,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 19:18:27,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:27,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 19:18:27,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:27,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 19:18:27,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:27,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 19:18:27,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:27,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 19:18:27,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:27,911 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 6 proven. 42 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-08 19:18:27,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:18:27,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009639555] [2024-11-08 19:18:27,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009639555] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:18:27,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2091656001] [2024-11-08 19:18:27,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:27,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:18:27,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:18:27,914 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:18:27,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 19:18:28,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:28,153 INFO L255 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 19:18:28,159 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:18:28,501 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 132 proven. 42 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2024-11-08 19:18:28,502 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:18:28,817 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 6 proven. 42 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-08 19:18:28,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2091656001] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:18:28,817 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:18:28,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 14 [2024-11-08 19:18:28,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837270476] [2024-11-08 19:18:28,818 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:18:28,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 19:18:28,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:18:28,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 19:18:28,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2024-11-08 19:18:28,820 INFO L87 Difference]: Start difference. First operand 129 states and 179 transitions. Second operand has 14 states, 11 states have (on average 8.363636363636363) internal successors, (92), 14 states have internal predecessors, (92), 7 states have call successors, (49), 2 states have call predecessors, (49), 4 states have return successors, (49), 4 states have call predecessors, (49), 7 states have call successors, (49) [2024-11-08 19:18:29,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:29,398 INFO L93 Difference]: Finished difference Result 270 states and 370 transitions. [2024-11-08 19:18:29,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 19:18:29,399 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 8.363636363636363) internal successors, (92), 14 states have internal predecessors, (92), 7 states have call successors, (49), 2 states have call predecessors, (49), 4 states have return successors, (49), 4 states have call predecessors, (49), 7 states have call successors, (49) Word has length 136 [2024-11-08 19:18:29,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:29,401 INFO L225 Difference]: With dead ends: 270 [2024-11-08 19:18:29,401 INFO L226 Difference]: Without dead ends: 144 [2024-11-08 19:18:29,402 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 297 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2024-11-08 19:18:29,403 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 368 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:29,403 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [370 Valid, 681 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 19:18:29,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-11-08 19:18:29,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 141. [2024-11-08 19:18:29,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 117 states have (on average 1.2991452991452992) internal successors, (152), 118 states have internal predecessors, (152), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-08 19:18:29,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 190 transitions. [2024-11-08 19:18:29,423 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 190 transitions. Word has length 136 [2024-11-08 19:18:29,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:29,424 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 190 transitions. [2024-11-08 19:18:29,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 8.363636363636363) internal successors, (92), 14 states have internal predecessors, (92), 7 states have call successors, (49), 2 states have call predecessors, (49), 4 states have return successors, (49), 4 states have call predecessors, (49), 7 states have call successors, (49) [2024-11-08 19:18:29,424 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 190 transitions. [2024-11-08 19:18:29,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-08 19:18:29,426 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:29,426 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:18:29,448 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 19:18:29,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:18:29,627 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:29,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:29,627 INFO L85 PathProgramCache]: Analyzing trace with hash -981869046, now seen corresponding path program 1 times [2024-11-08 19:18:29,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:29,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612863984] [2024-11-08 19:18:29,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:29,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:29,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:29,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:18:29,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:29,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:18:29,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:29,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 19:18:29,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:29,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 19:18:29,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:29,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 19:18:29,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:29,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 19:18:29,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:29,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:18:29,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:29,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 19:18:29,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:29,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 19:18:29,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:29,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 19:18:29,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:29,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 19:18:29,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:29,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 19:18:29,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:29,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 19:18:29,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:29,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 19:18:29,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:29,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 19:18:29,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:29,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 19:18:29,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:29,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 19:18:29,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:29,973 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 19:18:29,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:18:29,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612863984] [2024-11-08 19:18:29,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612863984] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:18:29,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:18:29,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:18:29,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017665913] [2024-11-08 19:18:29,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:18:29,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:18:29,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:18:29,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:18:29,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:18:29,976 INFO L87 Difference]: Start difference. First operand 141 states and 190 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:18:30,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:30,129 INFO L93 Difference]: Finished difference Result 389 states and 529 transitions. [2024-11-08 19:18:30,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 19:18:30,130 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 136 [2024-11-08 19:18:30,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:30,133 INFO L225 Difference]: With dead ends: 389 [2024-11-08 19:18:30,133 INFO L226 Difference]: Without dead ends: 260 [2024-11-08 19:18:30,134 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 36 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 19:18:30,134 INFO L432 NwaCegarLoop]: 202 mSDtfsCounter, 141 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:30,134 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 724 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:18:30,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2024-11-08 19:18:30,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 250. [2024-11-08 19:18:30,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 206 states have (on average 1.3009708737864079) internal successors, (268), 208 states have internal predecessors, (268), 36 states have call successors, (36), 7 states have call predecessors, (36), 7 states have return successors, (36), 34 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-08 19:18:30,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 340 transitions. [2024-11-08 19:18:30,164 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 340 transitions. Word has length 136 [2024-11-08 19:18:30,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:30,165 INFO L471 AbstractCegarLoop]: Abstraction has 250 states and 340 transitions. [2024-11-08 19:18:30,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:18:30,165 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 340 transitions. [2024-11-08 19:18:30,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-08 19:18:30,167 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:30,167 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:18:30,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 19:18:30,168 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:30,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:30,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1115882552, now seen corresponding path program 1 times [2024-11-08 19:18:30,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:30,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058874171] [2024-11-08 19:18:30,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:30,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:30,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:30,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:18:30,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:30,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:18:30,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:30,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 19:18:30,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:31,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 19:18:31,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:31,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 19:18:31,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:31,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 19:18:31,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:31,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:18:31,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:31,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 19:18:31,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:31,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 19:18:31,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:31,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 19:18:31,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:31,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 19:18:31,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:31,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 19:18:31,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:31,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 19:18:31,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:31,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 19:18:31,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:31,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 19:18:31,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:31,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 19:18:31,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:31,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 19:18:31,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:31,089 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 6 proven. 42 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-08 19:18:31,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:18:31,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058874171] [2024-11-08 19:18:31,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058874171] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:18:31,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1226578624] [2024-11-08 19:18:31,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:31,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:18:31,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:18:31,092 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:18:31,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 19:18:31,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:31,336 INFO L255 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 19:18:31,345 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:18:31,715 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 19:18:31,774 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 132 proven. 42 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2024-11-08 19:18:31,774 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:18:32,168 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 6 proven. 42 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-08 19:18:32,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1226578624] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:18:32,168 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:18:32,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 22 [2024-11-08 19:18:32,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855436980] [2024-11-08 19:18:32,169 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:18:32,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-08 19:18:32,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:18:32,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-08 19:18:32,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=383, Unknown=0, NotChecked=0, Total=462 [2024-11-08 19:18:32,171 INFO L87 Difference]: Start difference. First operand 250 states and 340 transitions. Second operand has 22 states, 18 states have (on average 5.722222222222222) internal successors, (103), 22 states have internal predecessors, (103), 8 states have call successors, (49), 2 states have call predecessors, (49), 4 states have return successors, (49), 4 states have call predecessors, (49), 8 states have call successors, (49) [2024-11-08 19:18:33,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:33,478 INFO L93 Difference]: Finished difference Result 601 states and 817 transitions. [2024-11-08 19:18:33,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-08 19:18:33,478 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 18 states have (on average 5.722222222222222) internal successors, (103), 22 states have internal predecessors, (103), 8 states have call successors, (49), 2 states have call predecessors, (49), 4 states have return successors, (49), 4 states have call predecessors, (49), 8 states have call successors, (49) Word has length 136 [2024-11-08 19:18:33,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:33,481 INFO L225 Difference]: With dead ends: 601 [2024-11-08 19:18:33,481 INFO L226 Difference]: Without dead ends: 363 [2024-11-08 19:18:33,483 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 294 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 318 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=305, Invalid=1335, Unknown=0, NotChecked=0, Total=1640 [2024-11-08 19:18:33,483 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 440 mSDsluCounter, 1157 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 1325 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:33,484 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 1325 Invalid, 932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 794 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 19:18:33,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2024-11-08 19:18:33,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 238. [2024-11-08 19:18:33,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 194 states have (on average 1.288659793814433) internal successors, (250), 196 states have internal predecessors, (250), 36 states have call successors, (36), 7 states have call predecessors, (36), 7 states have return successors, (36), 34 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-08 19:18:33,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 322 transitions. [2024-11-08 19:18:33,519 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 322 transitions. Word has length 136 [2024-11-08 19:18:33,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:33,519 INFO L471 AbstractCegarLoop]: Abstraction has 238 states and 322 transitions. [2024-11-08 19:18:33,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 18 states have (on average 5.722222222222222) internal successors, (103), 22 states have internal predecessors, (103), 8 states have call successors, (49), 2 states have call predecessors, (49), 4 states have return successors, (49), 4 states have call predecessors, (49), 8 states have call successors, (49) [2024-11-08 19:18:33,520 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 322 transitions. [2024-11-08 19:18:33,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-08 19:18:33,521 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:33,522 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:18:33,544 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 19:18:33,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-08 19:18:33,727 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:33,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:33,727 INFO L85 PathProgramCache]: Analyzing trace with hash 419371160, now seen corresponding path program 1 times [2024-11-08 19:18:33,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:33,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891027457] [2024-11-08 19:18:33,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:33,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:33,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:34,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:18:34,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:34,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:18:34,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:34,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 19:18:34,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:34,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 19:18:34,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:34,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 19:18:34,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:34,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 19:18:34,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:34,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:18:34,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:34,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 19:18:34,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:34,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 19:18:34,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:34,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 19:18:34,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:34,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 19:18:34,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:34,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 19:18:34,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:34,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 19:18:34,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:34,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 19:18:34,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:34,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 19:18:34,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:34,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 19:18:34,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:34,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 19:18:34,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:34,081 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 19:18:34,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:18:34,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891027457] [2024-11-08 19:18:34,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891027457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:18:34,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:18:34,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 19:18:34,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135263065] [2024-11-08 19:18:34,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:18:34,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:18:34,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:18:34,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:18:34,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:18:34,084 INFO L87 Difference]: Start difference. First operand 238 states and 322 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:18:34,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:34,298 INFO L93 Difference]: Finished difference Result 696 states and 948 transitions. [2024-11-08 19:18:34,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 19:18:34,299 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 137 [2024-11-08 19:18:34,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:34,302 INFO L225 Difference]: With dead ends: 696 [2024-11-08 19:18:34,302 INFO L226 Difference]: Without dead ends: 470 [2024-11-08 19:18:34,307 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-08 19:18:34,308 INFO L432 NwaCegarLoop]: 218 mSDtfsCounter, 139 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 983 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:34,309 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 983 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:18:34,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2024-11-08 19:18:34,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 242. [2024-11-08 19:18:34,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 198 states have (on average 1.292929292929293) internal successors, (256), 200 states have internal predecessors, (256), 36 states have call successors, (36), 7 states have call predecessors, (36), 7 states have return successors, (36), 34 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-08 19:18:34,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 328 transitions. [2024-11-08 19:18:34,351 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 328 transitions. Word has length 137 [2024-11-08 19:18:34,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:34,352 INFO L471 AbstractCegarLoop]: Abstraction has 242 states and 328 transitions. [2024-11-08 19:18:34,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:18:34,352 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 328 transitions. [2024-11-08 19:18:34,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-08 19:18:34,355 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:34,356 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:18:34,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 19:18:34,356 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:34,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:34,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1345634401, now seen corresponding path program 1 times [2024-11-08 19:18:34,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:34,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406786146] [2024-11-08 19:18:34,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:34,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:34,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:34,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:18:34,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:34,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:18:34,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:34,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 19:18:34,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:34,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 19:18:34,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:34,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 19:18:34,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:34,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 19:18:34,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:34,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:18:34,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:34,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 19:18:34,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:34,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 19:18:34,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:34,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 19:18:34,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:34,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 19:18:34,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:34,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 19:18:34,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:34,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 19:18:34,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:34,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 19:18:34,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:34,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 19:18:34,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:34,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 19:18:34,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:34,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 19:18:34,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:34,849 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 19:18:34,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:18:34,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406786146] [2024-11-08 19:18:34,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406786146] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:18:34,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:18:34,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 19:18:34,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129391960] [2024-11-08 19:18:34,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:18:34,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:18:34,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:18:34,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:18:34,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:18:34,853 INFO L87 Difference]: Start difference. First operand 242 states and 328 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:18:35,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:35,071 INFO L93 Difference]: Finished difference Result 470 states and 641 transitions. [2024-11-08 19:18:35,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 19:18:35,072 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 137 [2024-11-08 19:18:35,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:35,074 INFO L225 Difference]: With dead ends: 470 [2024-11-08 19:18:35,074 INFO L226 Difference]: Without dead ends: 240 [2024-11-08 19:18:35,074 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:18:35,077 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 230 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:35,077 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 352 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:18:35,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2024-11-08 19:18:35,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2024-11-08 19:18:35,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 196 states have (on average 1.280612244897959) internal successors, (251), 198 states have internal predecessors, (251), 36 states have call successors, (36), 7 states have call predecessors, (36), 7 states have return successors, (36), 34 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-08 19:18:35,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 323 transitions. [2024-11-08 19:18:35,112 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 323 transitions. Word has length 137 [2024-11-08 19:18:35,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:35,112 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 323 transitions. [2024-11-08 19:18:35,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:18:35,113 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 323 transitions. [2024-11-08 19:18:35,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-08 19:18:35,114 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:35,115 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:18:35,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 19:18:35,115 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:35,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:35,115 INFO L85 PathProgramCache]: Analyzing trace with hash -511949427, now seen corresponding path program 1 times [2024-11-08 19:18:35,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:35,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965163017] [2024-11-08 19:18:35,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:35,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:35,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:35,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:18:35,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:35,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:18:35,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:35,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 19:18:35,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:35,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 19:18:35,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:35,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 19:18:35,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:35,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 19:18:35,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:35,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:18:35,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:35,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 19:18:35,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:35,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 19:18:35,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:35,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 19:18:35,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:35,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 19:18:35,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:35,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 19:18:35,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:35,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 19:18:35,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:35,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 19:18:35,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:35,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 19:18:35,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:35,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 19:18:35,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:35,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 19:18:35,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:35,894 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 19:18:35,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:18:35,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965163017] [2024-11-08 19:18:35,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965163017] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:18:35,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:18:35,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 19:18:35,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549564480] [2024-11-08 19:18:35,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:18:35,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:18:35,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:18:35,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:18:35,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:18:35,897 INFO L87 Difference]: Start difference. First operand 240 states and 323 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:18:36,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:36,351 INFO L93 Difference]: Finished difference Result 618 states and 827 transitions. [2024-11-08 19:18:36,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 19:18:36,352 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 138 [2024-11-08 19:18:36,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:36,355 INFO L225 Difference]: With dead ends: 618 [2024-11-08 19:18:36,355 INFO L226 Difference]: Without dead ends: 390 [2024-11-08 19:18:36,356 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-08 19:18:36,356 INFO L432 NwaCegarLoop]: 250 mSDtfsCounter, 200 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:36,357 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 879 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 19:18:36,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2024-11-08 19:18:36,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 180. [2024-11-08 19:18:36,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 138 states have (on average 1.2246376811594204) internal successors, (169), 139 states have internal predecessors, (169), 34 states have call successors, (34), 7 states have call predecessors, (34), 7 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-08 19:18:36,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 237 transitions. [2024-11-08 19:18:36,391 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 237 transitions. Word has length 138 [2024-11-08 19:18:36,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:36,391 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 237 transitions. [2024-11-08 19:18:36,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:18:36,392 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 237 transitions. [2024-11-08 19:18:36,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-08 19:18:36,393 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:36,393 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:18:36,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 19:18:36,394 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:36,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:36,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1659017299, now seen corresponding path program 1 times [2024-11-08 19:18:36,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:36,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235485730] [2024-11-08 19:18:36,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:36,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:36,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:38,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:18:38,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:39,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:18:39,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:39,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 19:18:39,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:39,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 19:18:39,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:39,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 19:18:39,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:39,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 19:18:39,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:39,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:18:39,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:39,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 19:18:39,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:39,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 19:18:39,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:39,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 19:18:39,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:39,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 19:18:39,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:39,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 19:18:39,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:39,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 19:18:39,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:39,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 19:18:39,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:39,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 19:18:39,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:39,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 19:18:39,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:39,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 19:18:39,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:39,144 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 18 proven. 30 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-08 19:18:39,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:18:39,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235485730] [2024-11-08 19:18:39,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235485730] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:18:39,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [700117470] [2024-11-08 19:18:39,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:39,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:18:39,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:18:39,147 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:18:39,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 19:18:39,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:39,446 INFO L255 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-08 19:18:39,452 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:18:39,473 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 104 treesize of output 75 [2024-11-08 19:18:39,483 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:18:39,484 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 38 treesize of output 41 [2024-11-08 19:18:39,499 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 39 [2024-11-08 19:18:39,775 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:18:39,776 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 249 treesize of output 113 [2024-11-08 19:18:39,818 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 45 proven. 3 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-08 19:18:39,818 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:18:40,173 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 19:18:40,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [700117470] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:18:40,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-08 19:18:40,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [17, 8] total 19 [2024-11-08 19:18:40,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251024320] [2024-11-08 19:18:40,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:18:40,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:18:40,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:18:40,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:18:40,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2024-11-08 19:18:40,175 INFO L87 Difference]: Start difference. First operand 180 states and 237 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:18:40,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:40,428 INFO L93 Difference]: Finished difference Result 391 states and 511 transitions. [2024-11-08 19:18:40,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 19:18:40,428 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-11-08 19:18:40,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:40,432 INFO L225 Difference]: With dead ends: 391 [2024-11-08 19:18:40,432 INFO L226 Difference]: Without dead ends: 266 [2024-11-08 19:18:40,433 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 308 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2024-11-08 19:18:40,434 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 80 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:40,434 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 776 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:18:40,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2024-11-08 19:18:40,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 202. [2024-11-08 19:18:40,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 160 states have (on average 1.23125) internal successors, (197), 161 states have internal predecessors, (197), 34 states have call successors, (34), 7 states have call predecessors, (34), 7 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-08 19:18:40,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 265 transitions. [2024-11-08 19:18:40,470 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 265 transitions. Word has length 139 [2024-11-08 19:18:40,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:40,471 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 265 transitions. [2024-11-08 19:18:40,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:18:40,471 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 265 transitions. [2024-11-08 19:18:40,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-08 19:18:40,473 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:40,473 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:18:40,497 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 19:18:40,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-08 19:18:40,678 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:40,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:40,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1509233217, now seen corresponding path program 1 times [2024-11-08 19:18:40,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:40,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545052654] [2024-11-08 19:18:40,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:40,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:40,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:41,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:18:41,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:41,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:18:41,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:41,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 19:18:41,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:41,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 19:18:41,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:41,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 19:18:41,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:41,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 19:18:41,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:41,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:18:41,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:41,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 19:18:41,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:41,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 19:18:41,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:41,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 19:18:41,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:41,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 19:18:41,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:41,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 19:18:41,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:41,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 19:18:41,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:41,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 19:18:41,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:41,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 19:18:41,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:41,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 19:18:41,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:41,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 19:18:41,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:41,375 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 19:18:41,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:18:41,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545052654] [2024-11-08 19:18:41,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545052654] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:18:41,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:18:41,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 19:18:41,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346812772] [2024-11-08 19:18:41,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:18:41,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:18:41,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:18:41,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:18:41,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:18:41,378 INFO L87 Difference]: Start difference. First operand 202 states and 265 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:18:41,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:41,856 INFO L93 Difference]: Finished difference Result 454 states and 594 transitions. [2024-11-08 19:18:41,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 19:18:41,857 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-11-08 19:18:41,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:41,859 INFO L225 Difference]: With dead ends: 454 [2024-11-08 19:18:41,859 INFO L226 Difference]: Without dead ends: 303 [2024-11-08 19:18:41,860 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:18:41,860 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 242 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:41,861 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 615 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 19:18:41,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2024-11-08 19:18:41,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 205. [2024-11-08 19:18:41,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 163 states have (on average 1.2147239263803682) internal successors, (198), 164 states have internal predecessors, (198), 34 states have call successors, (34), 7 states have call predecessors, (34), 7 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-08 19:18:41,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 266 transitions. [2024-11-08 19:18:41,914 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 266 transitions. Word has length 139 [2024-11-08 19:18:41,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:41,915 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 266 transitions. [2024-11-08 19:18:41,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:18:41,915 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 266 transitions. [2024-11-08 19:18:41,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-08 19:18:41,917 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:41,918 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:18:41,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 19:18:41,918 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:41,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:41,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1139847540, now seen corresponding path program 1 times [2024-11-08 19:18:41,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:41,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243619632] [2024-11-08 19:18:41,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:41,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:41,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:42,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:18:42,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:42,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:18:42,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:42,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 19:18:42,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:42,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 19:18:42,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:42,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 19:18:42,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:42,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 19:18:42,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:42,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:18:42,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:42,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 19:18:42,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:42,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 19:18:42,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:42,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 19:18:42,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:42,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 19:18:42,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:42,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 19:18:42,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:42,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 19:18:42,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:42,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 19:18:42,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:42,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 19:18:42,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:42,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 19:18:42,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:42,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 19:18:42,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:42,400 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 19:18:42,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:18:42,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243619632] [2024-11-08 19:18:42,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243619632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:18:42,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:18:42,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 19:18:42,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489101238] [2024-11-08 19:18:42,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:18:42,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:18:42,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:18:42,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:18:42,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:18:42,402 INFO L87 Difference]: Start difference. First operand 205 states and 266 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:18:42,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:42,630 INFO L93 Difference]: Finished difference Result 355 states and 460 transitions. [2024-11-08 19:18:42,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 19:18:42,630 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 140 [2024-11-08 19:18:42,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:42,632 INFO L225 Difference]: With dead ends: 355 [2024-11-08 19:18:42,632 INFO L226 Difference]: Without dead ends: 205 [2024-11-08 19:18:42,633 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:18:42,634 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 221 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:42,634 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 349 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:18:42,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-11-08 19:18:42,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2024-11-08 19:18:42,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 163 states have (on average 1.2024539877300613) internal successors, (196), 164 states have internal predecessors, (196), 34 states have call successors, (34), 7 states have call predecessors, (34), 7 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-08 19:18:42,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 264 transitions. [2024-11-08 19:18:42,667 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 264 transitions. Word has length 140 [2024-11-08 19:18:42,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:42,669 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 264 transitions. [2024-11-08 19:18:42,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:18:42,669 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 264 transitions. [2024-11-08 19:18:42,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-08 19:18:42,671 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:42,671 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:18:42,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 19:18:42,672 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:42,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:42,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1566771854, now seen corresponding path program 1 times [2024-11-08 19:18:42,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:42,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664983700] [2024-11-08 19:18:42,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:42,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:42,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:44,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:18:44,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:44,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:18:44,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:44,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 19:18:44,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:44,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 19:18:44,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:44,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 19:18:44,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:44,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 19:18:44,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:44,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:18:44,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:44,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 19:18:44,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:44,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 19:18:44,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:44,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 19:18:44,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:44,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 19:18:44,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:44,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 19:18:44,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:44,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 19:18:44,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:44,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 19:18:44,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:44,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 19:18:44,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:44,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 19:18:44,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:44,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 19:18:44,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:44,691 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 19:18:44,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:18:44,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664983700] [2024-11-08 19:18:44,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664983700] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:18:44,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:18:44,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 19:18:44,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562477405] [2024-11-08 19:18:44,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:18:44,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 19:18:44,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:18:44,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 19:18:44,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:18:44,695 INFO L87 Difference]: Start difference. First operand 205 states and 264 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:18:44,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:44,912 INFO L93 Difference]: Finished difference Result 452 states and 576 transitions. [2024-11-08 19:18:44,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 19:18:44,913 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 140 [2024-11-08 19:18:44,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:44,915 INFO L225 Difference]: With dead ends: 452 [2024-11-08 19:18:44,915 INFO L226 Difference]: Without dead ends: 302 [2024-11-08 19:18:44,916 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:18:44,917 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 86 mSDsluCounter, 987 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 1211 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:44,917 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 1211 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:18:44,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2024-11-08 19:18:44,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 299. [2024-11-08 19:18:44,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 244 states have (on average 1.2049180327868851) internal successors, (294), 246 states have internal predecessors, (294), 43 states have call successors, (43), 11 states have call predecessors, (43), 11 states have return successors, (43), 41 states have call predecessors, (43), 43 states have call successors, (43) [2024-11-08 19:18:44,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 380 transitions. [2024-11-08 19:18:44,970 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 380 transitions. Word has length 140 [2024-11-08 19:18:44,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:44,970 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 380 transitions. [2024-11-08 19:18:44,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:18:44,971 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 380 transitions. [2024-11-08 19:18:44,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-08 19:18:44,973 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:44,973 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:18:44,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 19:18:44,973 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:44,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:44,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1144070028, now seen corresponding path program 1 times [2024-11-08 19:18:44,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:44,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413997943] [2024-11-08 19:18:44,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:44,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:45,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:45,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:18:45,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:45,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:18:45,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:45,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 19:18:45,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:45,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 19:18:45,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:45,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 19:18:45,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:45,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 19:18:45,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:45,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:18:45,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:45,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 19:18:45,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:45,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 19:18:45,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:45,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 19:18:45,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:45,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 19:18:45,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:45,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 19:18:45,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:45,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 19:18:45,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:45,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 19:18:45,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:45,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 19:18:45,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:45,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 19:18:45,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:45,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 19:18:45,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:45,397 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 19:18:45,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:18:45,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413997943] [2024-11-08 19:18:45,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413997943] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:18:45,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:18:45,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 19:18:45,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736193131] [2024-11-08 19:18:45,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:18:45,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:18:45,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:18:45,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:18:45,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:18:45,400 INFO L87 Difference]: Start difference. First operand 299 states and 380 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:18:45,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:45,637 INFO L93 Difference]: Finished difference Result 527 states and 670 transitions. [2024-11-08 19:18:45,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 19:18:45,638 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 140 [2024-11-08 19:18:45,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:45,640 INFO L225 Difference]: With dead ends: 527 [2024-11-08 19:18:45,640 INFO L226 Difference]: Without dead ends: 283 [2024-11-08 19:18:45,641 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:18:45,642 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 136 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:45,642 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 344 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:18:45,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2024-11-08 19:18:45,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 283. [2024-11-08 19:18:45,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 228 states have (on average 1.2017543859649122) internal successors, (274), 230 states have internal predecessors, (274), 43 states have call successors, (43), 11 states have call predecessors, (43), 11 states have return successors, (43), 41 states have call predecessors, (43), 43 states have call successors, (43) [2024-11-08 19:18:45,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 360 transitions. [2024-11-08 19:18:45,697 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 360 transitions. Word has length 140 [2024-11-08 19:18:45,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:45,698 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 360 transitions. [2024-11-08 19:18:45,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:18:45,699 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 360 transitions. [2024-11-08 19:18:45,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-08 19:18:45,701 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:45,701 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:18:45,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 19:18:45,701 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:45,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:45,702 INFO L85 PathProgramCache]: Analyzing trace with hash 33538971, now seen corresponding path program 1 times [2024-11-08 19:18:45,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:45,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631794678] [2024-11-08 19:18:45,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:45,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:45,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:46,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:18:46,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:46,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:18:46,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:46,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 19:18:46,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:46,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 19:18:46,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:46,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 19:18:46,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:46,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 19:18:46,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:46,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:18:46,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:46,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 19:18:46,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:46,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 19:18:46,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:46,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 19:18:46,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:46,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 19:18:46,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:46,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 19:18:46,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:46,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 19:18:46,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:46,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 19:18:46,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:46,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 19:18:46,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:46,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 19:18:46,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:46,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 19:18:46,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:46,163 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 19:18:46,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:18:46,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631794678] [2024-11-08 19:18:46,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631794678] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:18:46,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:18:46,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:18:46,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418444281] [2024-11-08 19:18:46,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:18:46,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:18:46,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:18:46,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:18:46,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:18:46,168 INFO L87 Difference]: Start difference. First operand 283 states and 360 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 19:18:46,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:46,460 INFO L93 Difference]: Finished difference Result 511 states and 648 transitions. [2024-11-08 19:18:46,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:18:46,460 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), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 142 [2024-11-08 19:18:46,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:46,462 INFO L225 Difference]: With dead ends: 511 [2024-11-08 19:18:46,462 INFO L226 Difference]: Without dead ends: 283 [2024-11-08 19:18:46,463 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:18:46,463 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 203 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:46,464 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 262 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:18:46,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2024-11-08 19:18:46,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 283. [2024-11-08 19:18:46,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 228 states have (on average 1.1973684210526316) internal successors, (273), 230 states have internal predecessors, (273), 43 states have call successors, (43), 11 states have call predecessors, (43), 11 states have return successors, (43), 41 states have call predecessors, (43), 43 states have call successors, (43) [2024-11-08 19:18:46,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 359 transitions. [2024-11-08 19:18:46,517 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 359 transitions. Word has length 142 [2024-11-08 19:18:46,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:46,518 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 359 transitions. [2024-11-08 19:18:46,518 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), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 19:18:46,518 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 359 transitions. [2024-11-08 19:18:46,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-08 19:18:46,521 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:46,522 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:18:46,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 19:18:46,522 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:46,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:46,522 INFO L85 PathProgramCache]: Analyzing trace with hash 982049627, now seen corresponding path program 1 times [2024-11-08 19:18:46,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:46,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113894198] [2024-11-08 19:18:46,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:46,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:46,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:46,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:18:46,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:46,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:18:46,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:47,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 19:18:47,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:47,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 19:18:47,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:47,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 19:18:47,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:47,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 19:18:47,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:47,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:18:47,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:47,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 19:18:47,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:47,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 19:18:47,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:47,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 19:18:47,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:47,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 19:18:47,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:47,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 19:18:47,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:47,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 19:18:47,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:47,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 19:18:47,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:47,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 19:18:47,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:47,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 19:18:47,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:47,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 19:18:47,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:47,037 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 19:18:47,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:18:47,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113894198] [2024-11-08 19:18:47,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113894198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:18:47,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:18:47,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 19:18:47,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582473701] [2024-11-08 19:18:47,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:18:47,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:18:47,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:18:47,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:18:47,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:18:47,042 INFO L87 Difference]: Start difference. First operand 283 states and 359 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:18:47,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:47,226 INFO L93 Difference]: Finished difference Result 291 states and 368 transitions. [2024-11-08 19:18:47,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 19:18:47,226 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 143 [2024-11-08 19:18:47,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:47,229 INFO L225 Difference]: With dead ends: 291 [2024-11-08 19:18:47,229 INFO L226 Difference]: Without dead ends: 289 [2024-11-08 19:18:47,229 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-08 19:18:47,230 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 76 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:47,231 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 650 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:18:47,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2024-11-08 19:18:47,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 289. [2024-11-08 19:18:47,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 234 states have (on average 1.1923076923076923) internal successors, (279), 236 states have internal predecessors, (279), 43 states have call successors, (43), 11 states have call predecessors, (43), 11 states have return successors, (43), 41 states have call predecessors, (43), 43 states have call successors, (43) [2024-11-08 19:18:47,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 365 transitions. [2024-11-08 19:18:47,289 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 365 transitions. Word has length 143 [2024-11-08 19:18:47,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:47,289 INFO L471 AbstractCegarLoop]: Abstraction has 289 states and 365 transitions. [2024-11-08 19:18:47,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:18:47,290 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 365 transitions. [2024-11-08 19:18:47,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-08 19:18:47,296 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:47,296 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:18:47,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 19:18:47,296 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:47,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:47,297 INFO L85 PathProgramCache]: Analyzing trace with hash 983896669, now seen corresponding path program 1 times [2024-11-08 19:18:47,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:47,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975874613] [2024-11-08 19:18:47,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:47,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:47,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:18:47,416 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:18:47,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:18:47,573 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 19:18:47,573 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 19:18:47,574 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 19:18:47,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 19:18:47,580 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] [2024-11-08 19:18:47,715 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 19:18:47,719 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 07:18:47 BoogieIcfgContainer [2024-11-08 19:18:47,719 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 19:18:47,719 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 19:18:47,719 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 19:18:47,723 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 19:18:47,724 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:18:18" (3/4) ... [2024-11-08 19:18:47,727 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 19:18:47,728 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 19:18:47,729 INFO L158 Benchmark]: Toolchain (without parser) took 30782.88ms. Allocated memory was 142.6MB in the beginning and 524.3MB in the end (delta: 381.7MB). Free memory was 102.1MB in the beginning and 250.3MB in the end (delta: -148.2MB). Peak memory consumption was 234.8MB. Max. memory is 16.1GB. [2024-11-08 19:18:47,729 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 142.6MB. Free memory is still 109.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:18:47,730 INFO L158 Benchmark]: CACSL2BoogieTranslator took 377.03ms. Allocated memory is still 142.6MB. Free memory was 101.7MB in the beginning and 85.7MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-08 19:18:47,730 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.66ms. Allocated memory is still 142.6MB. Free memory was 85.7MB in the beginning and 82.0MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 19:18:47,732 INFO L158 Benchmark]: Boogie Preprocessor took 75.23ms. Allocated memory is still 142.6MB. Free memory was 82.0MB in the beginning and 77.4MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 19:18:47,732 INFO L158 Benchmark]: RCFGBuilder took 1012.13ms. Allocated memory was 142.6MB in the beginning and 174.1MB in the end (delta: 31.5MB). Free memory was 77.4MB in the beginning and 135.1MB in the end (delta: -57.8MB). Peak memory consumption was 33.2MB. Max. memory is 16.1GB. [2024-11-08 19:18:47,733 INFO L158 Benchmark]: TraceAbstraction took 29236.58ms. Allocated memory was 174.1MB in the beginning and 524.3MB in the end (delta: 350.2MB). Free memory was 134.2MB in the beginning and 250.3MB in the end (delta: -116.1MB). Peak memory consumption was 233.0MB. Max. memory is 16.1GB. [2024-11-08 19:18:47,733 INFO L158 Benchmark]: Witness Printer took 9.10ms. Allocated memory is still 524.3MB. Free memory is still 250.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:18:47,735 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 142.6MB. Free memory is still 109.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 377.03ms. Allocated memory is still 142.6MB. Free memory was 101.7MB in the beginning and 85.7MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.66ms. Allocated memory is still 142.6MB. Free memory was 85.7MB in the beginning and 82.0MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 75.23ms. Allocated memory is still 142.6MB. Free memory was 82.0MB in the beginning and 77.4MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1012.13ms. Allocated memory was 142.6MB in the beginning and 174.1MB in the end (delta: 31.5MB). Free memory was 77.4MB in the beginning and 135.1MB in the end (delta: -57.8MB). Peak memory consumption was 33.2MB. Max. memory is 16.1GB. * TraceAbstraction took 29236.58ms. Allocated memory was 174.1MB in the beginning and 524.3MB in the end (delta: 350.2MB). Free memory was 134.2MB in the beginning and 250.3MB in the end (delta: -116.1MB). Peak memory consumption was 233.0MB. Max. memory is 16.1GB. * Witness Printer took 9.10ms. Allocated memory is still 524.3MB. Free memory is still 250.3MB. 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 100. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[3] = { 1, 1, 0 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[3] = { 1, 1, 0 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[3] = { 1, 1, 0 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[3] = { 1, 1, 0 }; [L25-L27] float float_Array_0[2] = { 32.5, 127.4 }; [L25-L27] float float_Array_0[2] = { 32.5, 127.4 }; [L25-L27] float float_Array_0[2] = { 32.5, 127.4 }; [L28-L30] signed char signed_char_Array_0[3] = { 16, 100, -1 }; [L28-L30] signed char signed_char_Array_0[3] = { 16, 100, -1 }; [L28-L30] signed char signed_char_Array_0[3] = { 16, 100, -1 }; [L28-L30] signed char signed_char_Array_0[3] = { 16, 100, -1 }; [L31-L33] signed short int signed_short_int_Array_0[5] = { 100, 20113, 128, 32, 16 }; [L31-L33] signed short int signed_short_int_Array_0[5] = { 100, 20113, 128, 32, 16 }; [L31-L33] signed short int signed_short_int_Array_0[5] = { 100, 20113, 128, 32, 16 }; [L31-L33] signed short int signed_short_int_Array_0[5] = { 100, 20113, 128, 32, 16 }; [L31-L33] signed short int signed_short_int_Array_0[5] = { 100, 20113, 128, 32, 16 }; [L31-L33] signed short int signed_short_int_Array_0[5] = { 100, 20113, 128, 32, 16 }; [L34-L36] unsigned short int unsigned_short_int_Array_0[2] = { 10, 256 }; [L34-L36] unsigned short int unsigned_short_int_Array_0[2] = { 10, 256 }; [L34-L36] unsigned short int unsigned_short_int_Array_0[2] = { 10, 256 }; VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=0, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L104] isInitial = 1 [L105] FCALL initially() [L106] COND TRUE 1 [L107] FCALL updateLastVariables() [L108] CALL updateVariables() [L70] BOOL_unsigned_char_Array_0[1] = __VERIFIER_nondet_uchar() [L71] EXPR BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L71] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1] >= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L71] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1] >= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L72] EXPR BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L72] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L72] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L73] BOOL_unsigned_char_Array_0[2] = __VERIFIER_nondet_uchar() [L74] EXPR BOOL_unsigned_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L74] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[2] >= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L74] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[2] >= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L75] EXPR BOOL_unsigned_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L75] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[2] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L75] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[2] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L76] float_Array_0[1] = __VERIFIER_nondet_float() [L77] EXPR float_Array_0[1] [L77] EXPR float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L77] EXPR float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F [L77] EXPR float_Array_0[1] [L77] EXPR float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L77] EXPR (float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854765600e+12F && float_Array_0[1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L77] EXPR (float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854765600e+12F && float_Array_0[1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L77] CALL assume_abort_if_not((float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854765600e+12F && float_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L77] RET assume_abort_if_not((float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854765600e+12F && float_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L78] signed_char_Array_0[0] = __VERIFIER_nondet_char() [L79] EXPR signed_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L79] CALL assume_abort_if_not(signed_char_Array_0[0] >= -31) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L79] RET assume_abort_if_not(signed_char_Array_0[0] >= -31) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L80] EXPR signed_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L80] CALL assume_abort_if_not(signed_char_Array_0[0] <= 32) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L80] RET assume_abort_if_not(signed_char_Array_0[0] <= 32) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L81] signed_char_Array_0[2] = __VERIFIER_nondet_char() [L82] EXPR signed_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L82] CALL assume_abort_if_not(signed_char_Array_0[2] >= -63) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L82] RET assume_abort_if_not(signed_char_Array_0[2] >= -63) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L83] EXPR signed_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L83] CALL assume_abort_if_not(signed_char_Array_0[2] <= 63) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L83] RET assume_abort_if_not(signed_char_Array_0[2] <= 63) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L84] signed_short_int_Array_0[0] = __VERIFIER_nondet_short() [L85] EXPR signed_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L85] CALL assume_abort_if_not(signed_short_int_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L85] RET assume_abort_if_not(signed_short_int_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L86] EXPR signed_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L86] CALL assume_abort_if_not(signed_short_int_Array_0[0] <= 16383) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L86] RET assume_abort_if_not(signed_short_int_Array_0[0] <= 16383) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L87] signed_short_int_Array_0[1] = __VERIFIER_nondet_short() [L88] EXPR signed_short_int_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L88] CALL assume_abort_if_not(signed_short_int_Array_0[1] >= 16383) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L88] RET assume_abort_if_not(signed_short_int_Array_0[1] >= 16383) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L89] EXPR signed_short_int_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L89] CALL assume_abort_if_not(signed_short_int_Array_0[1] <= 32766) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L89] RET assume_abort_if_not(signed_short_int_Array_0[1] <= 32766) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L90] signed_short_int_Array_0[3] = __VERIFIER_nondet_short() [L91] EXPR signed_short_int_Array_0[3] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L91] CALL assume_abort_if_not(signed_short_int_Array_0[3] >= -1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L91] RET assume_abort_if_not(signed_short_int_Array_0[3] >= -1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L92] EXPR signed_short_int_Array_0[3] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L92] CALL assume_abort_if_not(signed_short_int_Array_0[3] <= 32766) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L92] RET assume_abort_if_not(signed_short_int_Array_0[3] <= 32766) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L93] unsigned_short_int_Array_0[1] = __VERIFIER_nondet_ushort() [L94] EXPR unsigned_short_int_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L94] 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, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L94] 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, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L95] EXPR unsigned_short_int_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L95] CALL assume_abort_if_not(unsigned_short_int_Array_0[1] <= 65534) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L95] RET assume_abort_if_not(unsigned_short_int_Array_0[1] <= 65534) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L108] RET updateVariables() [L109] CALL step() [L40] EXPR unsigned_short_int_Array_0[1] [L40] unsigned_short_int_Array_0[0] = unsigned_short_int_Array_0[1] [L41] EXPR float_Array_0[1] [L41] float_Array_0[0] = float_Array_0[1] [L42] EXPR signed_char_Array_0[0] [L42] signed_short_int_Array_0[2] = signed_char_Array_0[0] [L43] EXPR float_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L43] COND TRUE 127.5f > float_Array_0[0] [L44] EXPR BOOL_unsigned_char_Array_0[2] [L44] EXPR BOOL_unsigned_char_Array_0[2] && BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L44] EXPR BOOL_unsigned_char_Array_0[2] && BOOL_unsigned_char_Array_0[1] [L44] EXPR BOOL_unsigned_char_Array_0[1] [L44] EXPR BOOL_unsigned_char_Array_0[2] && BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L44] BOOL_unsigned_char_Array_0[0] = (BOOL_unsigned_char_Array_0[2] && BOOL_unsigned_char_Array_0[1]) [L48] EXPR unsigned_short_int_Array_0[0] [L48] EXPR signed_short_int_Array_0[3] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L48] COND TRUE unsigned_short_int_Array_0[0] == signed_short_int_Array_0[3] [L49] EXPR signed_char_Array_0[2] [L49] EXPR signed_char_Array_0[0] [L49] signed_char_Array_0[1] = (signed_char_Array_0[2] + (signed_char_Array_0[0] + -25)) [L57] BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L57] COND TRUE BOOL_unsigned_char_Array_0[0] [L58] EXPR signed_char_Array_0[1] [L58] EXPR signed_short_int_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L58] COND FALSE !(signed_char_Array_0[1] > signed_short_int_Array_0[2]) [L65] signed_short_int_Array_0[4] = 8 VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L109] RET step() [L110] CALL, EXPR property() [L100] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L100] EXPR BOOL_unsigned_char_Array_0[0] ? ((signed_char_Array_0[1] > signed_short_int_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (signed_short_int_Array_0[3] - (signed_short_int_Array_0[1] - signed_short_int_Array_0[0])))) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_short_int_Array_0[0]))) : (signed_short_int_Array_0[4] == ((signed short int) 8))) : 1 [L100] EXPR signed_char_Array_0[1] [L100] EXPR signed_short_int_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L100] EXPR (signed_char_Array_0[1] > signed_short_int_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (signed_short_int_Array_0[3] - (signed_short_int_Array_0[1] - signed_short_int_Array_0[0])))) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_short_int_Array_0[0]))) : (signed_short_int_Array_0[4] == ((signed short int) 8)) [L100] EXPR signed_short_int_Array_0[4] [L100] EXPR (signed_char_Array_0[1] > signed_short_int_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (signed_short_int_Array_0[3] - (signed_short_int_Array_0[1] - signed_short_int_Array_0[0])))) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_short_int_Array_0[0]))) : (signed_short_int_Array_0[4] == ((signed short int) 8)) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L100] EXPR BOOL_unsigned_char_Array_0[0] ? ((signed_char_Array_0[1] > signed_short_int_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (signed_short_int_Array_0[3] - (signed_short_int_Array_0[1] - signed_short_int_Array_0[0])))) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_short_int_Array_0[0]))) : (signed_short_int_Array_0[4] == ((signed short int) 8))) : 1 VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L100] EXPR (BOOL_unsigned_char_Array_0[0] ? ((signed_char_Array_0[1] > signed_short_int_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (signed_short_int_Array_0[3] - (signed_short_int_Array_0[1] - signed_short_int_Array_0[0])))) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_short_int_Array_0[0]))) : (signed_short_int_Array_0[4] == ((signed short int) 8))) : 1) && ((unsigned_short_int_Array_0[0] == signed_short_int_Array_0[3]) ? (signed_char_Array_0[1] == ((signed char) (signed_char_Array_0[2] + (signed_char_Array_0[0] + -25)))) : ((((32 * -25) | signed_short_int_Array_0[2]) >= signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0])) : 1) : 1)) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L100] EXPR (BOOL_unsigned_char_Array_0[0] ? ((signed_char_Array_0[1] > signed_short_int_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (signed_short_int_Array_0[3] - (signed_short_int_Array_0[1] - signed_short_int_Array_0[0])))) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_short_int_Array_0[0]))) : (signed_short_int_Array_0[4] == ((signed short int) 8))) : 1) && ((unsigned_short_int_Array_0[0] == signed_short_int_Array_0[3]) ? (signed_char_Array_0[1] == ((signed char) (signed_char_Array_0[2] + (signed_char_Array_0[0] + -25)))) : ((((32 * -25) | signed_short_int_Array_0[2]) >= signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0])) : 1) : 1)) [L100] EXPR unsigned_short_int_Array_0[0] [L100] EXPR signed_short_int_Array_0[3] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L100] EXPR (unsigned_short_int_Array_0[0] == signed_short_int_Array_0[3]) ? (signed_char_Array_0[1] == ((signed char) (signed_char_Array_0[2] + (signed_char_Array_0[0] + -25)))) : ((((32 * -25) | signed_short_int_Array_0[2]) >= signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0])) : 1) : 1) [L100] EXPR signed_char_Array_0[1] [L100] EXPR signed_char_Array_0[2] [L100] EXPR signed_char_Array_0[0] [L100] EXPR (unsigned_short_int_Array_0[0] == signed_short_int_Array_0[3]) ? (signed_char_Array_0[1] == ((signed char) (signed_char_Array_0[2] + (signed_char_Array_0[0] + -25)))) : ((((32 * -25) | signed_short_int_Array_0[2]) >= signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0])) : 1) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L100] EXPR (BOOL_unsigned_char_Array_0[0] ? ((signed_char_Array_0[1] > signed_short_int_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (signed_short_int_Array_0[3] - (signed_short_int_Array_0[1] - signed_short_int_Array_0[0])))) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_short_int_Array_0[0]))) : (signed_short_int_Array_0[4] == ((signed short int) 8))) : 1) && ((unsigned_short_int_Array_0[0] == signed_short_int_Array_0[3]) ? (signed_char_Array_0[1] == ((signed char) (signed_char_Array_0[2] + (signed_char_Array_0[0] + -25)))) : ((((32 * -25) | signed_short_int_Array_0[2]) >= signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0])) : 1) : 1)) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L100] EXPR ((BOOL_unsigned_char_Array_0[0] ? ((signed_char_Array_0[1] > signed_short_int_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (signed_short_int_Array_0[3] - (signed_short_int_Array_0[1] - signed_short_int_Array_0[0])))) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_short_int_Array_0[0]))) : (signed_short_int_Array_0[4] == ((signed short int) 8))) : 1) && ((unsigned_short_int_Array_0[0] == signed_short_int_Array_0[3]) ? (signed_char_Array_0[1] == ((signed char) (signed_char_Array_0[2] + (signed_char_Array_0[0] + -25)))) : ((((32 * -25) | signed_short_int_Array_0[2]) >= signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0])) : 1) : 1))) && ((127.5f > float_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] == ((unsigned char) (BOOL_unsigned_char_Array_0[2] && BOOL_unsigned_char_Array_0[1]))) : (BOOL_unsigned_char_Array_0[0] == ((unsigned char) ((float_Array_0[0] >= float_Array_0[0]) || BOOL_unsigned_char_Array_0[2])))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L100] EXPR ((BOOL_unsigned_char_Array_0[0] ? ((signed_char_Array_0[1] > signed_short_int_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (signed_short_int_Array_0[3] - (signed_short_int_Array_0[1] - signed_short_int_Array_0[0])))) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_short_int_Array_0[0]))) : (signed_short_int_Array_0[4] == ((signed short int) 8))) : 1) && ((unsigned_short_int_Array_0[0] == signed_short_int_Array_0[3]) ? (signed_char_Array_0[1] == ((signed char) (signed_char_Array_0[2] + (signed_char_Array_0[0] + -25)))) : ((((32 * -25) | signed_short_int_Array_0[2]) >= signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0])) : 1) : 1))) && ((127.5f > float_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] == ((unsigned char) (BOOL_unsigned_char_Array_0[2] && BOOL_unsigned_char_Array_0[1]))) : (BOOL_unsigned_char_Array_0[0] == ((unsigned char) ((float_Array_0[0] >= float_Array_0[0]) || BOOL_unsigned_char_Array_0[2])))) [L100] EXPR float_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L100] EXPR (127.5f > float_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] == ((unsigned char) (BOOL_unsigned_char_Array_0[2] && BOOL_unsigned_char_Array_0[1]))) : (BOOL_unsigned_char_Array_0[0] == ((unsigned char) ((float_Array_0[0] >= float_Array_0[0]) || BOOL_unsigned_char_Array_0[2]))) [L100] EXPR BOOL_unsigned_char_Array_0[0] [L100] EXPR float_Array_0[0] [L100] EXPR float_Array_0[0] [L100] EXPR (float_Array_0[0] >= float_Array_0[0]) || BOOL_unsigned_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L100] EXPR (float_Array_0[0] >= float_Array_0[0]) || BOOL_unsigned_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L100] EXPR (127.5f > float_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] == ((unsigned char) (BOOL_unsigned_char_Array_0[2] && BOOL_unsigned_char_Array_0[1]))) : (BOOL_unsigned_char_Array_0[0] == ((unsigned char) ((float_Array_0[0] >= float_Array_0[0]) || BOOL_unsigned_char_Array_0[2]))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L100] EXPR ((BOOL_unsigned_char_Array_0[0] ? ((signed_char_Array_0[1] > signed_short_int_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (signed_short_int_Array_0[3] - (signed_short_int_Array_0[1] - signed_short_int_Array_0[0])))) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_short_int_Array_0[0]))) : (signed_short_int_Array_0[4] == ((signed short int) 8))) : 1) && ((unsigned_short_int_Array_0[0] == signed_short_int_Array_0[3]) ? (signed_char_Array_0[1] == ((signed char) (signed_char_Array_0[2] + (signed_char_Array_0[0] + -25)))) : ((((32 * -25) | signed_short_int_Array_0[2]) >= signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0])) : 1) : 1))) && ((127.5f > float_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] == ((unsigned char) (BOOL_unsigned_char_Array_0[2] && BOOL_unsigned_char_Array_0[1]))) : (BOOL_unsigned_char_Array_0[0] == ((unsigned char) ((float_Array_0[0] >= float_Array_0[0]) || BOOL_unsigned_char_Array_0[2])))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L100] EXPR (((BOOL_unsigned_char_Array_0[0] ? ((signed_char_Array_0[1] > signed_short_int_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (signed_short_int_Array_0[3] - (signed_short_int_Array_0[1] - signed_short_int_Array_0[0])))) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_short_int_Array_0[0]))) : (signed_short_int_Array_0[4] == ((signed short int) 8))) : 1) && ((unsigned_short_int_Array_0[0] == signed_short_int_Array_0[3]) ? (signed_char_Array_0[1] == ((signed char) (signed_char_Array_0[2] + (signed_char_Array_0[0] + -25)))) : ((((32 * -25) | signed_short_int_Array_0[2]) >= signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0])) : 1) : 1))) && ((127.5f > float_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] == ((unsigned char) (BOOL_unsigned_char_Array_0[2] && BOOL_unsigned_char_Array_0[1]))) : (BOOL_unsigned_char_Array_0[0] == ((unsigned char) ((float_Array_0[0] >= float_Array_0[0]) || BOOL_unsigned_char_Array_0[2]))))) && (unsigned_short_int_Array_0[0] == ((unsigned short int) unsigned_short_int_Array_0[1])) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L100] EXPR (((BOOL_unsigned_char_Array_0[0] ? ((signed_char_Array_0[1] > signed_short_int_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (signed_short_int_Array_0[3] - (signed_short_int_Array_0[1] - signed_short_int_Array_0[0])))) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_short_int_Array_0[0]))) : (signed_short_int_Array_0[4] == ((signed short int) 8))) : 1) && ((unsigned_short_int_Array_0[0] == signed_short_int_Array_0[3]) ? (signed_char_Array_0[1] == ((signed char) (signed_char_Array_0[2] + (signed_char_Array_0[0] + -25)))) : ((((32 * -25) | signed_short_int_Array_0[2]) >= signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0])) : 1) : 1))) && ((127.5f > float_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] == ((unsigned char) (BOOL_unsigned_char_Array_0[2] && BOOL_unsigned_char_Array_0[1]))) : (BOOL_unsigned_char_Array_0[0] == ((unsigned char) ((float_Array_0[0] >= float_Array_0[0]) || BOOL_unsigned_char_Array_0[2]))))) && (unsigned_short_int_Array_0[0] == ((unsigned short int) unsigned_short_int_Array_0[1])) [L100] EXPR unsigned_short_int_Array_0[0] [L100] EXPR unsigned_short_int_Array_0[1] [L100] EXPR (((BOOL_unsigned_char_Array_0[0] ? ((signed_char_Array_0[1] > signed_short_int_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (signed_short_int_Array_0[3] - (signed_short_int_Array_0[1] - signed_short_int_Array_0[0])))) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_short_int_Array_0[0]))) : (signed_short_int_Array_0[4] == ((signed short int) 8))) : 1) && ((unsigned_short_int_Array_0[0] == signed_short_int_Array_0[3]) ? (signed_char_Array_0[1] == ((signed char) (signed_char_Array_0[2] + (signed_char_Array_0[0] + -25)))) : ((((32 * -25) | signed_short_int_Array_0[2]) >= signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0])) : 1) : 1))) && ((127.5f > float_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] == ((unsigned char) (BOOL_unsigned_char_Array_0[2] && BOOL_unsigned_char_Array_0[1]))) : (BOOL_unsigned_char_Array_0[0] == ((unsigned char) ((float_Array_0[0] >= float_Array_0[0]) || BOOL_unsigned_char_Array_0[2]))))) && (unsigned_short_int_Array_0[0] == ((unsigned short int) unsigned_short_int_Array_0[1])) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L100] EXPR ((((BOOL_unsigned_char_Array_0[0] ? ((signed_char_Array_0[1] > signed_short_int_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (signed_short_int_Array_0[3] - (signed_short_int_Array_0[1] - signed_short_int_Array_0[0])))) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_short_int_Array_0[0]))) : (signed_short_int_Array_0[4] == ((signed short int) 8))) : 1) && ((unsigned_short_int_Array_0[0] == signed_short_int_Array_0[3]) ? (signed_char_Array_0[1] == ((signed char) (signed_char_Array_0[2] + (signed_char_Array_0[0] + -25)))) : ((((32 * -25) | signed_short_int_Array_0[2]) >= signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0])) : 1) : 1))) && ((127.5f > float_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] == ((unsigned char) (BOOL_unsigned_char_Array_0[2] && BOOL_unsigned_char_Array_0[1]))) : (BOOL_unsigned_char_Array_0[0] == ((unsigned char) ((float_Array_0[0] >= float_Array_0[0]) || BOOL_unsigned_char_Array_0[2]))))) && (unsigned_short_int_Array_0[0] == ((unsigned short int) unsigned_short_int_Array_0[1]))) && (float_Array_0[0] == ((float) float_Array_0[1])) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L100] EXPR ((((BOOL_unsigned_char_Array_0[0] ? ((signed_char_Array_0[1] > signed_short_int_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (signed_short_int_Array_0[3] - (signed_short_int_Array_0[1] - signed_short_int_Array_0[0])))) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_short_int_Array_0[0]))) : (signed_short_int_Array_0[4] == ((signed short int) 8))) : 1) && ((unsigned_short_int_Array_0[0] == signed_short_int_Array_0[3]) ? (signed_char_Array_0[1] == ((signed char) (signed_char_Array_0[2] + (signed_char_Array_0[0] + -25)))) : ((((32 * -25) | signed_short_int_Array_0[2]) >= signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0])) : 1) : 1))) && ((127.5f > float_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] == ((unsigned char) (BOOL_unsigned_char_Array_0[2] && BOOL_unsigned_char_Array_0[1]))) : (BOOL_unsigned_char_Array_0[0] == ((unsigned char) ((float_Array_0[0] >= float_Array_0[0]) || BOOL_unsigned_char_Array_0[2]))))) && (unsigned_short_int_Array_0[0] == ((unsigned short int) unsigned_short_int_Array_0[1]))) && (float_Array_0[0] == ((float) float_Array_0[1])) [L100] EXPR float_Array_0[0] [L100] EXPR float_Array_0[1] [L100] EXPR ((((BOOL_unsigned_char_Array_0[0] ? ((signed_char_Array_0[1] > signed_short_int_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (signed_short_int_Array_0[3] - (signed_short_int_Array_0[1] - signed_short_int_Array_0[0])))) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_short_int_Array_0[0]))) : (signed_short_int_Array_0[4] == ((signed short int) 8))) : 1) && ((unsigned_short_int_Array_0[0] == signed_short_int_Array_0[3]) ? (signed_char_Array_0[1] == ((signed char) (signed_char_Array_0[2] + (signed_char_Array_0[0] + -25)))) : ((((32 * -25) | signed_short_int_Array_0[2]) >= signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0])) : 1) : 1))) && ((127.5f > float_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] == ((unsigned char) (BOOL_unsigned_char_Array_0[2] && BOOL_unsigned_char_Array_0[1]))) : (BOOL_unsigned_char_Array_0[0] == ((unsigned char) ((float_Array_0[0] >= float_Array_0[0]) || BOOL_unsigned_char_Array_0[2]))))) && (unsigned_short_int_Array_0[0] == ((unsigned short int) unsigned_short_int_Array_0[1]))) && (float_Array_0[0] == ((float) float_Array_0[1])) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L100] EXPR (((((BOOL_unsigned_char_Array_0[0] ? ((signed_char_Array_0[1] > signed_short_int_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (signed_short_int_Array_0[3] - (signed_short_int_Array_0[1] - signed_short_int_Array_0[0])))) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_short_int_Array_0[0]))) : (signed_short_int_Array_0[4] == ((signed short int) 8))) : 1) && ((unsigned_short_int_Array_0[0] == signed_short_int_Array_0[3]) ? (signed_char_Array_0[1] == ((signed char) (signed_char_Array_0[2] + (signed_char_Array_0[0] + -25)))) : ((((32 * -25) | signed_short_int_Array_0[2]) >= signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0])) : 1) : 1))) && ((127.5f > float_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] == ((unsigned char) (BOOL_unsigned_char_Array_0[2] && BOOL_unsigned_char_Array_0[1]))) : (BOOL_unsigned_char_Array_0[0] == ((unsigned char) ((float_Array_0[0] >= float_Array_0[0]) || BOOL_unsigned_char_Array_0[2]))))) && (unsigned_short_int_Array_0[0] == ((unsigned short int) unsigned_short_int_Array_0[1]))) && (float_Array_0[0] == ((float) float_Array_0[1]))) && (signed_short_int_Array_0[2] == ((signed short int) signed_char_Array_0[0])) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L100] EXPR (((((BOOL_unsigned_char_Array_0[0] ? ((signed_char_Array_0[1] > signed_short_int_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (signed_short_int_Array_0[3] - (signed_short_int_Array_0[1] - signed_short_int_Array_0[0])))) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_short_int_Array_0[0]))) : (signed_short_int_Array_0[4] == ((signed short int) 8))) : 1) && ((unsigned_short_int_Array_0[0] == signed_short_int_Array_0[3]) ? (signed_char_Array_0[1] == ((signed char) (signed_char_Array_0[2] + (signed_char_Array_0[0] + -25)))) : ((((32 * -25) | signed_short_int_Array_0[2]) >= signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0])) : 1) : 1))) && ((127.5f > float_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] == ((unsigned char) (BOOL_unsigned_char_Array_0[2] && BOOL_unsigned_char_Array_0[1]))) : (BOOL_unsigned_char_Array_0[0] == ((unsigned char) ((float_Array_0[0] >= float_Array_0[0]) || BOOL_unsigned_char_Array_0[2]))))) && (unsigned_short_int_Array_0[0] == ((unsigned short int) unsigned_short_int_Array_0[1]))) && (float_Array_0[0] == ((float) float_Array_0[1]))) && (signed_short_int_Array_0[2] == ((signed short int) signed_char_Array_0[0])) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L100-L101] return (((((BOOL_unsigned_char_Array_0[0] ? ((signed_char_Array_0[1] > signed_short_int_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (signed_short_int_Array_0[3] - (signed_short_int_Array_0[1] - signed_short_int_Array_0[0])))) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_short_int_Array_0[0]))) : (signed_short_int_Array_0[4] == ((signed short int) 8))) : 1) && ((unsigned_short_int_Array_0[0] == signed_short_int_Array_0[3]) ? (signed_char_Array_0[1] == ((signed char) (signed_char_Array_0[2] + (signed_char_Array_0[0] + -25)))) : ((((32 * -25) | signed_short_int_Array_0[2]) >= signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0])) : 1) : 1))) && ((127.5f > float_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] == ((unsigned char) (BOOL_unsigned_char_Array_0[2] && BOOL_unsigned_char_Array_0[1]))) : (BOOL_unsigned_char_Array_0[0] == ((unsigned char) ((float_Array_0[0] >= float_Array_0[0]) || BOOL_unsigned_char_Array_0[2]))))) && (unsigned_short_int_Array_0[0] == ((unsigned short int) unsigned_short_int_Array_0[1]))) && (float_Array_0[0] == ((float) float_Array_0[1]))) && (signed_short_int_Array_0[2] == ((signed short int) signed_char_Array_0[0])) ; [L110] RET, EXPR property() [L110] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L19] reach_error() VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 108 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 29.0s, OverallIterations: 21, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 7.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3426 SdHoareTripleChecker+Valid, 4.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3419 mSDsluCounter, 12895 SdHoareTripleChecker+Invalid, 3.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9629 mSDsCounter, 465 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3686 IncrementalHoareTripleChecker+Invalid, 4151 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 465 mSolverCounterUnsat, 3266 mSDtfsCounter, 3686 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2002 GetRequests, 1802 SyntacticMatches, 6 SemanticMatches, 194 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 753 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=299occurred in iteration=17, InterpolantAutomatonStates: 155, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 20 MinimizatonAttempts, 941 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 17.3s InterpolantComputationTime, 3441 NumberOfCodeBlocks, 3441 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 3817 ConstructedInterpolants, 0 QuantifiedInterpolants, 15046 SizeOfPredicates, 20 NumberOfNonLiveVariables, 1922 ConjunctsInSsa, 70 ConjunctsInUnsatCore, 28 InterpolantComputations, 17 PerfectInterpolantSequences, 14803/15232 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 19:18:47,787 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/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_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-97.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/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_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/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 b62f33a7ccb058dd1bccedc0e4fe3fa92f34517f00ef57b41d6990849c30929b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:18:50,273 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:18:50,361 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-08 19:18:50,366 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:18:50,367 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 19:18:50,399 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:18:50,400 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 19:18:50,400 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 19:18:50,401 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 19:18:50,403 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 19:18:50,404 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:18:50,404 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 19:18:50,405 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:18:50,407 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:18:50,410 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 19:18:50,411 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:18:50,411 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:18:50,411 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 19:18:50,412 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 19:18:50,412 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:18:50,412 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:18:50,413 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:18:50,413 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:18:50,415 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 19:18:50,415 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 19:18:50,415 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:18:50,416 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 19:18:50,416 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 19:18:50,416 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:18:50,416 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:18:50,417 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:18:50,417 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 19:18:50,417 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 19:18:50,417 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 19:18:50,418 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:18:50,418 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:18:50,418 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:18:50,419 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:18:50,419 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 19:18:50,419 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 19:18:50,419 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 19:18:50,420 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 19:18:50,420 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 19:18:50,420 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 19:18:50,421 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_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b62f33a7ccb058dd1bccedc0e4fe3fa92f34517f00ef57b41d6990849c30929b [2024-11-08 19:18:50,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:18:50,848 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:18:50,855 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:18:50,856 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:18:50,857 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:18:50,859 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-97.i Unable to find full path for "g++" [2024-11-08 19:18:53,094 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:18:53,367 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:18:53,369 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-97.i [2024-11-08 19:18:53,378 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/data/b10a59d29/3fe8057fc16543449a9b3d26914dccb3/FLAG0487571ae [2024-11-08 19:18:53,401 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/data/b10a59d29/3fe8057fc16543449a9b3d26914dccb3 [2024-11-08 19:18:53,403 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:18:53,407 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:18:53,409 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:18:53,410 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:18:53,415 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:18:53,416 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:18:53" (1/1) ... [2024-11-08 19:18:53,418 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19336cbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:53, skipping insertion in model container [2024-11-08 19:18:53,418 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:18:53" (1/1) ... [2024-11-08 19:18:53,448 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:18:53,614 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_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-97.i[916,929] [2024-11-08 19:18:53,675 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:18:53,693 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:18:53,706 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_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-97.i[916,929] [2024-11-08 19:18:53,757 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:18:53,784 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:18:53,785 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:53 WrapperNode [2024-11-08 19:18:53,785 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:18:53,786 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:18:53,786 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:18:53,786 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:18:53,794 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:53" (1/1) ... [2024-11-08 19:18:53,810 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:53" (1/1) ... [2024-11-08 19:18:53,876 INFO L138 Inliner]: procedures = 33, calls = 149, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 414 [2024-11-08 19:18:53,877 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:18:53,884 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:18:53,885 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:18:53,885 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:18:53,914 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:53" (1/1) ... [2024-11-08 19:18:53,914 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:53" (1/1) ... [2024-11-08 19:18:53,922 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:53" (1/1) ... [2024-11-08 19:18:53,942 INFO L175 MemorySlicer]: Split 116 memory accesses to 6 slices as follows [2, 25, 17, 25, 34, 13]. 29 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 3, 2, 3, 5, 2]. The 19 writes are split as follows [0, 4, 2, 4, 7, 2]. [2024-11-08 19:18:53,943 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:53" (1/1) ... [2024-11-08 19:18:53,943 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:53" (1/1) ... [2024-11-08 19:18:53,965 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:53" (1/1) ... [2024-11-08 19:18:53,970 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:53" (1/1) ... [2024-11-08 19:18:53,974 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:53" (1/1) ... [2024-11-08 19:18:53,977 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:53" (1/1) ... [2024-11-08 19:18:53,983 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:18:53,984 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:18:53,984 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:18:53,984 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:18:53,985 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:53" (1/1) ... [2024-11-08 19:18:53,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:18:54,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:18:54,041 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 19:18:54,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 19:18:54,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 19:18:54,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-08 19:18:54,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-08 19:18:54,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-08 19:18:54,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-11-08 19:18:54,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2024-11-08 19:18:54,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#5 [2024-11-08 19:18:54,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#0 [2024-11-08 19:18:54,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#1 [2024-11-08 19:18:54,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#2 [2024-11-08 19:18:54,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#3 [2024-11-08 19:18:54,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#4 [2024-11-08 19:18:54,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#5 [2024-11-08 19:18:54,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 19:18:54,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-08 19:18:54,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-08 19:18:54,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-08 19:18:54,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-08 19:18:54,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-08 19:18:54,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-08 19:18:54,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-08 19:18:54,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-08 19:18:54,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-08 19:18:54,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-11-08 19:18:54,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2024-11-08 19:18:54,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2024-11-08 19:18:54,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2024-11-08 19:18:54,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#2 [2024-11-08 19:18:54,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#3 [2024-11-08 19:18:54,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#4 [2024-11-08 19:18:54,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#5 [2024-11-08 19:18:54,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-08 19:18:54,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-08 19:18:54,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-08 19:18:54,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-08 19:18:54,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-11-08 19:18:54,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2024-11-08 19:18:54,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2024-11-08 19:18:54,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2024-11-08 19:18:54,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2024-11-08 19:18:54,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2024-11-08 19:18:54,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2024-11-08 19:18:54,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5 [2024-11-08 19:18:54,083 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 19:18:54,083 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 19:18:54,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:18:54,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:18:54,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-08 19:18:54,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-08 19:18:54,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-11-08 19:18:54,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2024-11-08 19:18:54,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2024-11-08 19:18:54,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5 [2024-11-08 19:18:54,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2024-11-08 19:18:54,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2024-11-08 19:18:54,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#2 [2024-11-08 19:18:54,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#3 [2024-11-08 19:18:54,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#4 [2024-11-08 19:18:54,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#5 [2024-11-08 19:18:54,257 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:18:54,260 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:18:54,859 INFO L? ?]: Removed 80 outVars from TransFormulas that were not future-live. [2024-11-08 19:18:54,860 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:18:54,875 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:18:54,876 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 19:18:54,876 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:18:54 BoogieIcfgContainer [2024-11-08 19:18:54,877 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:18:54,879 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 19:18:54,880 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 19:18:54,883 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 19:18:54,884 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 07:18:53" (1/3) ... [2024-11-08 19:18:54,884 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c21f09f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:18:54, skipping insertion in model container [2024-11-08 19:18:54,885 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:53" (2/3) ... [2024-11-08 19:18:54,885 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c21f09f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:18:54, skipping insertion in model container [2024-11-08 19:18:54,885 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:18:54" (3/3) ... [2024-11-08 19:18:54,887 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-97.i [2024-11-08 19:18:54,907 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 19:18:54,907 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 19:18:55,010 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 19:18:55,020 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;@501d5668, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 19:18:55,021 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 19:18:55,026 INFO L276 IsEmpty]: Start isEmpty. Operand has 100 states, 80 states have (on average 1.3875) internal successors, (111), 81 states have internal predecessors, (111), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 19:18:55,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-08 19:18:55,046 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:55,047 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:18:55,048 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:55,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:55,059 INFO L85 PathProgramCache]: Analyzing trace with hash -67087781, now seen corresponding path program 1 times [2024-11-08 19:18:55,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:18:55,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [369610245] [2024-11-08 19:18:55,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:55,081 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 19:18:55,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:18:55,085 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:18:55,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:18:55,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:55,507 INFO L255 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 19:18:55,526 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:18:55,589 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 272 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-08 19:18:55,589 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:18:55,590 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:18:55,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [369610245] [2024-11-08 19:18:55,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [369610245] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:18:55,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:18:55,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 19:18:55,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939235852] [2024-11-08 19:18:55,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:18:55,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 19:18:55,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:18:55,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 19:18:55,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 19:18:55,639 INFO L87 Difference]: Start difference. First operand has 100 states, 80 states have (on average 1.3875) internal successors, (111), 81 states have internal predecessors, (111), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 19:18:55,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:55,683 INFO L93 Difference]: Finished difference Result 193 states and 301 transitions. [2024-11-08 19:18:55,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 19:18:55,685 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 134 [2024-11-08 19:18:55,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:55,697 INFO L225 Difference]: With dead ends: 193 [2024-11-08 19:18:55,697 INFO L226 Difference]: Without dead ends: 96 [2024-11-08 19:18:55,703 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 133 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 19:18:55,708 INFO L432 NwaCegarLoop]: 138 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, 138 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 19:18:55,710 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:18:55,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-08 19:18:55,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-11-08 19:18:55,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 77 states have (on average 1.3506493506493507) internal successors, (104), 77 states have internal predecessors, (104), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 19:18:55,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 138 transitions. [2024-11-08 19:18:55,771 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 138 transitions. Word has length 134 [2024-11-08 19:18:55,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:55,771 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 138 transitions. [2024-11-08 19:18:55,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 19:18:55,772 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 138 transitions. [2024-11-08 19:18:55,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-08 19:18:55,776 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:55,776 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:18:55,786 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:18:55,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:18:55,977 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:55,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:55,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1279193609, now seen corresponding path program 1 times [2024-11-08 19:18:55,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:18:55,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [455517729] [2024-11-08 19:18:55,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:55,979 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 19:18:55,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:18:55,983 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:18:55,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:18:56,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:56,313 INFO L255 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 19:18:56,319 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:18:56,373 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 19:18:56,373 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:18:56,374 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:18:56,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [455517729] [2024-11-08 19:18:56,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [455517729] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:18:56,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:18:56,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 19:18:56,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812328699] [2024-11-08 19:18:56,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:18:56,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:18:56,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:18:56,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:18:56,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:18:56,379 INFO L87 Difference]: Start difference. First operand 96 states and 138 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:18:56,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:56,446 INFO L93 Difference]: Finished difference Result 191 states and 276 transitions. [2024-11-08 19:18:56,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:18:56,447 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134 [2024-11-08 19:18:56,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:56,449 INFO L225 Difference]: With dead ends: 191 [2024-11-08 19:18:56,450 INFO L226 Difference]: Without dead ends: 98 [2024-11-08 19:18:56,451 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 131 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 19:18:56,452 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 0 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:56,452 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 397 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:18:56,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-08 19:18:56,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2024-11-08 19:18:56,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 79 states have (on average 1.3417721518987342) internal successors, (106), 79 states have internal predecessors, (106), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 19:18:56,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 140 transitions. [2024-11-08 19:18:56,465 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 140 transitions. Word has length 134 [2024-11-08 19:18:56,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:56,467 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 140 transitions. [2024-11-08 19:18:56,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:18:56,468 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 140 transitions. [2024-11-08 19:18:56,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-08 19:18:56,470 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:56,471 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:18:56,477 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Ended with exit code 0 [2024-11-08 19:18:56,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:18:56,672 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:56,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:56,672 INFO L85 PathProgramCache]: Analyzing trace with hash 28614619, now seen corresponding path program 1 times [2024-11-08 19:18:56,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:18:56,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [536827761] [2024-11-08 19:18:56,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:56,674 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 19:18:56,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:18:56,677 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:18:56,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:18:57,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:57,033 INFO L255 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 19:18:57,038 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:18:57,098 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 19:18:57,098 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:18:57,098 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:18:57,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [536827761] [2024-11-08 19:18:57,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [536827761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:18:57,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:18:57,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:18:57,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498585196] [2024-11-08 19:18:57,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:18:57,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:18:57,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:18:57,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:18:57,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:18:57,102 INFO L87 Difference]: Start difference. First operand 98 states and 140 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:18:57,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:57,463 INFO L93 Difference]: Finished difference Result 274 states and 391 transitions. [2024-11-08 19:18:57,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:18:57,464 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 136 [2024-11-08 19:18:57,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:57,467 INFO L225 Difference]: With dead ends: 274 [2024-11-08 19:18:57,467 INFO L226 Difference]: Without dead ends: 179 [2024-11-08 19:18:57,468 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 132 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 19:18:57,469 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 109 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:57,470 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 642 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 19:18:57,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-08 19:18:57,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 100. [2024-11-08 19:18:57,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 81 states have (on average 1.3333333333333333) internal successors, (108), 81 states have internal predecessors, (108), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 19:18:57,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 142 transitions. [2024-11-08 19:18:57,486 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 142 transitions. Word has length 136 [2024-11-08 19:18:57,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:57,486 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 142 transitions. [2024-11-08 19:18:57,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:18:57,487 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 142 transitions. [2024-11-08 19:18:57,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-08 19:18:57,489 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:57,490 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:18:57,501 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:18:57,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:18:57,691 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:57,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:57,691 INFO L85 PathProgramCache]: Analyzing trace with hash 954877860, now seen corresponding path program 1 times [2024-11-08 19:18:57,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:18:57,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1063834708] [2024-11-08 19:18:57,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:57,693 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 19:18:57,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:18:57,696 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:18:57,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:18:58,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:58,017 INFO L255 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 19:18:58,021 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:18:58,048 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 19:18:58,048 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:18:58,049 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:18:58,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1063834708] [2024-11-08 19:18:58,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1063834708] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:18:58,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:18:58,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 19:18:58,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67502984] [2024-11-08 19:18:58,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:18:58,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:18:58,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:18:58,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:18:58,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:18:58,052 INFO L87 Difference]: Start difference. First operand 100 states and 142 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:18:58,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:58,087 INFO L93 Difference]: Finished difference Result 200 states and 285 transitions. [2024-11-08 19:18:58,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:18:58,088 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 136 [2024-11-08 19:18:58,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:58,090 INFO L225 Difference]: With dead ends: 200 [2024-11-08 19:18:58,092 INFO L226 Difference]: Without dead ends: 103 [2024-11-08 19:18:58,093 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 133 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 19:18:58,097 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 1 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:58,098 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 394 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:18:58,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-11-08 19:18:58,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 102. [2024-11-08 19:18:58,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 83 states have (on average 1.3253012048192772) internal successors, (110), 83 states have internal predecessors, (110), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 19:18:58,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 144 transitions. [2024-11-08 19:18:58,115 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 144 transitions. Word has length 136 [2024-11-08 19:18:58,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:58,119 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 144 transitions. [2024-11-08 19:18:58,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:18:58,120 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 144 transitions. [2024-11-08 19:18:58,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-08 19:18:58,122 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:58,122 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:18:58,134 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Ended with exit code 0 [2024-11-08 19:18:58,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:18:58,329 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:58,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:58,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1634936230, now seen corresponding path program 1 times [2024-11-08 19:18:58,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:18:58,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [946459468] [2024-11-08 19:18:58,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:58,332 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 19:18:58,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:18:58,335 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:18:58,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:18:58,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:58,699 INFO L255 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 19:18:58,705 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:18:58,774 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 19:18:58,774 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:18:58,774 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:18:58,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [946459468] [2024-11-08 19:18:58,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [946459468] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:18:58,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:18:58,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 19:18:58,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020583451] [2024-11-08 19:18:58,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:18:58,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:18:58,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:18:58,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:18:58,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:18:58,781 INFO L87 Difference]: Start difference. First operand 102 states and 144 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:18:58,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:58,870 INFO L93 Difference]: Finished difference Result 206 states and 292 transitions. [2024-11-08 19:18:58,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 19:18:58,872 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 136 [2024-11-08 19:18:58,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:58,875 INFO L225 Difference]: With dead ends: 206 [2024-11-08 19:18:58,876 INFO L226 Difference]: Without dead ends: 107 [2024-11-08 19:18:58,877 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 131 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 19:18:58,879 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 1 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:58,880 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 640 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:18:58,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-08 19:18:58,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 106. [2024-11-08 19:18:58,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 87 states have (on average 1.3103448275862069) internal successors, (114), 87 states have internal predecessors, (114), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 19:18:58,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 148 transitions. [2024-11-08 19:18:58,895 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 148 transitions. Word has length 136 [2024-11-08 19:18:58,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:58,896 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 148 transitions. [2024-11-08 19:18:58,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:18:58,897 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 148 transitions. [2024-11-08 19:18:58,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-08 19:18:58,900 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:58,900 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:18:58,909 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Ended with exit code 0 [2024-11-08 19:18:59,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:18:59,105 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:59,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:59,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1636783272, now seen corresponding path program 1 times [2024-11-08 19:18:59,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:18:59,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [639237594] [2024-11-08 19:18:59,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:59,107 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 19:18:59,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:18:59,108 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:18:59,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:18:59,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:59,464 INFO L255 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-08 19:18:59,472 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:18:59,522 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 19:18:59,762 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 37 treesize of output 30 [2024-11-08 19:19:01,438 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:19:01,439 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 41 [2024-11-08 19:19:01,567 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:19:01,567 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 49 treesize of output 23 [2024-11-08 19:19:01,616 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 34 proven. 90 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-08 19:19:01,616 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:19:02,233 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2024-11-08 19:19:02,234 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:19:02,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [639237594] [2024-11-08 19:19:02,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [639237594] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:19:02,234 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 19:19:02,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10] total 21 [2024-11-08 19:19:02,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063260684] [2024-11-08 19:19:02,235 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 19:19:02,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-08 19:19:02,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:19:02,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-08 19:19:02,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2024-11-08 19:19:02,241 INFO L87 Difference]: Start difference. First operand 106 states and 148 transitions. Second operand has 21 states, 17 states have (on average 5.588235294117647) internal successors, (95), 20 states have internal predecessors, (95), 6 states have call successors, (34), 3 states have call predecessors, (34), 5 states have return successors, (34), 3 states have call predecessors, (34), 6 states have call successors, (34) [2024-11-08 19:19:04,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:19:04,359 INFO L93 Difference]: Finished difference Result 332 states and 454 transitions. [2024-11-08 19:19:04,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-08 19:19:04,361 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 17 states have (on average 5.588235294117647) internal successors, (95), 20 states have internal predecessors, (95), 6 states have call successors, (34), 3 states have call predecessors, (34), 5 states have return successors, (34), 3 states have call predecessors, (34), 6 states have call successors, (34) Word has length 136 [2024-11-08 19:19:04,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:19:04,363 INFO L225 Difference]: With dead ends: 332 [2024-11-08 19:19:04,363 INFO L226 Difference]: Without dead ends: 229 [2024-11-08 19:19:04,365 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 251 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=331, Invalid=1309, Unknown=0, NotChecked=0, Total=1640 [2024-11-08 19:19:04,366 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 368 mSDsluCounter, 1090 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 1228 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:19:04,366 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [370 Valid, 1228 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 19:19:04,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2024-11-08 19:19:04,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 121. [2024-11-08 19:19:04,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 100 states have (on average 1.3) internal successors, (130), 100 states have internal predecessors, (130), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 19:19:04,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 164 transitions. [2024-11-08 19:19:04,439 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 164 transitions. Word has length 136 [2024-11-08 19:19:04,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:19:04,440 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 164 transitions. [2024-11-08 19:19:04,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 17 states have (on average 5.588235294117647) internal successors, (95), 20 states have internal predecessors, (95), 6 states have call successors, (34), 3 states have call predecessors, (34), 5 states have return successors, (34), 3 states have call predecessors, (34), 6 states have call successors, (34) [2024-11-08 19:19:04,440 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 164 transitions. [2024-11-08 19:19:04,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-08 19:19:04,443 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:19:04,443 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:19:04,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-08 19:19:04,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:04,649 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:19:04,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:19:04,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1502769766, now seen corresponding path program 1 times [2024-11-08 19:19:04,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:19:04,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [444284185] [2024-11-08 19:19:04,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:19:04,651 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 19:19:04,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:19:04,655 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:04,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:04,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:04,983 INFO L255 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 19:19:04,990 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:19:05,806 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 50 treesize of output 26 [2024-11-08 19:19:05,834 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 148 proven. 78 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2024-11-08 19:19:05,834 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:19:06,257 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 12 proven. 78 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2024-11-08 19:19:06,258 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:19:06,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [444284185] [2024-11-08 19:19:06,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [444284185] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:19:06,258 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 19:19:06,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 15 [2024-11-08 19:19:06,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674526296] [2024-11-08 19:19:06,259 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 19:19:06,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 19:19:06,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:19:06,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 19:19:06,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-08 19:19:06,261 INFO L87 Difference]: Start difference. First operand 121 states and 164 transitions. Second operand has 15 states, 11 states have (on average 7.909090909090909) internal successors, (87), 15 states have internal predecessors, (87), 7 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 3 states have call predecessors, (32), 7 states have call successors, (32) [2024-11-08 19:19:07,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:19:07,011 INFO L93 Difference]: Finished difference Result 262 states and 346 transitions. [2024-11-08 19:19:07,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-08 19:19:07,012 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 11 states have (on average 7.909090909090909) internal successors, (87), 15 states have internal predecessors, (87), 7 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 3 states have call predecessors, (32), 7 states have call successors, (32) Word has length 136 [2024-11-08 19:19:07,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:19:07,014 INFO L225 Difference]: With dead ends: 262 [2024-11-08 19:19:07,014 INFO L226 Difference]: Without dead ends: 144 [2024-11-08 19:19:07,017 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 256 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=118, Invalid=302, Unknown=0, NotChecked=0, Total=420 [2024-11-08 19:19:07,018 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 374 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 19:19:07,018 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 568 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 19:19:07,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-11-08 19:19:07,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 128. [2024-11-08 19:19:07,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 105 states have (on average 1.276190476190476) internal successors, (134), 105 states have internal predecessors, (134), 17 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 19:19:07,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 168 transitions. [2024-11-08 19:19:07,047 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 168 transitions. Word has length 136 [2024-11-08 19:19:07,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:19:07,049 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 168 transitions. [2024-11-08 19:19:07,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 11 states have (on average 7.909090909090909) internal successors, (87), 15 states have internal predecessors, (87), 7 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 3 states have call predecessors, (32), 7 states have call successors, (32) [2024-11-08 19:19:07,049 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 168 transitions. [2024-11-08 19:19:07,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-08 19:19:07,053 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:19:07,054 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:19:07,061 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:07,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:07,259 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:19:07,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:19:07,259 INFO L85 PathProgramCache]: Analyzing trace with hash 2131653329, now seen corresponding path program 1 times [2024-11-08 19:19:07,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:19:07,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [863359668] [2024-11-08 19:19:07,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:19:07,260 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 19:19:07,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:19:07,261 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:07,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:07,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:07,560 INFO L255 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 19:19:07,564 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:19:07,596 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 19:19:07,615 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 19:19:07,626 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 19:19:07,628 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:19:07,629 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:19:07,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [863359668] [2024-11-08 19:19:07,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [863359668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:19:07,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:19:07,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:19:07,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179560365] [2024-11-08 19:19:07,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:19:07,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:19:07,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:19:07,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:19:07,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:19:07,631 INFO L87 Difference]: Start difference. First operand 128 states and 168 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:19:07,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:19:07,858 INFO L93 Difference]: Finished difference Result 372 states and 489 transitions. [2024-11-08 19:19:07,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 19:19:07,859 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 136 [2024-11-08 19:19:07,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:19:07,861 INFO L225 Difference]: With dead ends: 372 [2024-11-08 19:19:07,863 INFO L226 Difference]: Without dead ends: 247 [2024-11-08 19:19:07,864 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 132 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 19:19:07,865 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 129 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:19:07,865 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 640 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:19:07,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2024-11-08 19:19:07,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 129. [2024-11-08 19:19:07,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 106 states have (on average 1.2735849056603774) internal successors, (135), 106 states have internal predecessors, (135), 17 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 19:19:07,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 169 transitions. [2024-11-08 19:19:07,894 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 169 transitions. Word has length 136 [2024-11-08 19:19:07,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:19:07,895 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 169 transitions. [2024-11-08 19:19:07,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:19:07,895 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 169 transitions. [2024-11-08 19:19:07,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-08 19:19:07,897 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:19:07,897 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:19:07,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-08 19:19:08,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:08,098 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:19:08,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:19:08,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1997639823, now seen corresponding path program 1 times [2024-11-08 19:19:08,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:19:08,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1825544495] [2024-11-08 19:19:08,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:19:08,099 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 19:19:08,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:19:08,100 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:08,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:08,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:08,402 INFO L255 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-08 19:19:08,407 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:19:09,227 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 19:19:09,313 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:19:09,313 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 39 treesize of output 19 [2024-11-08 19:19:09,340 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 148 proven. 78 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2024-11-08 19:19:09,340 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:19:09,901 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 12 proven. 78 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2024-11-08 19:19:09,901 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:19:09,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1825544495] [2024-11-08 19:19:09,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1825544495] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:19:09,901 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 19:19:09,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 20 [2024-11-08 19:19:09,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92404299] [2024-11-08 19:19:09,902 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 19:19:09,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-08 19:19:09,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:19:09,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-08 19:19:09,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2024-11-08 19:19:09,918 INFO L87 Difference]: Start difference. First operand 129 states and 169 transitions. Second operand has 20 states, 16 states have (on average 5.8125) internal successors, (93), 20 states have internal predecessors, (93), 7 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 3 states have call predecessors, (32), 7 states have call successors, (32) [2024-11-08 19:19:11,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:19:11,901 INFO L93 Difference]: Finished difference Result 389 states and 505 transitions. [2024-11-08 19:19:11,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-08 19:19:11,902 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 16 states have (on average 5.8125) internal successors, (93), 20 states have internal predecessors, (93), 7 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 3 states have call predecessors, (32), 7 states have call successors, (32) Word has length 136 [2024-11-08 19:19:11,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:19:11,904 INFO L225 Difference]: With dead ends: 389 [2024-11-08 19:19:11,904 INFO L226 Difference]: Without dead ends: 263 [2024-11-08 19:19:11,905 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 252 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=349, Invalid=1373, Unknown=0, NotChecked=0, Total=1722 [2024-11-08 19:19:11,909 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 479 mSDsluCounter, 1373 mSDsCounter, 0 mSdLazyCounter, 881 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 487 SdHoareTripleChecker+Valid, 1534 SdHoareTripleChecker+Invalid, 945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:19:11,910 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [487 Valid, 1534 Invalid, 945 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 881 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 19:19:11,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2024-11-08 19:19:11,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 120. [2024-11-08 19:19:11,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 97 states have (on average 1.2577319587628866) internal successors, (122), 97 states have internal predecessors, (122), 17 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 19:19:11,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 156 transitions. [2024-11-08 19:19:11,930 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 156 transitions. Word has length 136 [2024-11-08 19:19:11,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:19:11,931 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 156 transitions. [2024-11-08 19:19:11,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 16 states have (on average 5.8125) internal successors, (93), 20 states have internal predecessors, (93), 7 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 3 states have call predecessors, (32), 7 states have call successors, (32) [2024-11-08 19:19:11,931 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 156 transitions. [2024-11-08 19:19:11,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-08 19:19:11,933 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:19:11,933 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:19:11,940 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:12,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:12,137 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:19:12,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:19:12,138 INFO L85 PathProgramCache]: Analyzing trace with hash 171989418, now seen corresponding path program 1 times [2024-11-08 19:19:12,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:19:12,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [851285755] [2024-11-08 19:19:12,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:19:12,139 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 19:19:12,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:19:12,142 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:12,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Waiting until timeout for monitored process [2024-11-08 19:19:12,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:12,439 INFO L255 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 19:19:12,442 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:19:12,454 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 19:19:12,485 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 43 treesize of output 25 [2024-11-08 19:19:12,527 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 19:19:12,528 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:19:12,528 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:19:12,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [851285755] [2024-11-08 19:19:12,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [851285755] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:19:12,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:19:12,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 19:19:12,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495032380] [2024-11-08 19:19:12,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:19:12,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:19:12,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:19:12,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:19:12,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:19:12,531 INFO L87 Difference]: Start difference. First operand 120 states and 156 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:19:12,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:19:12,898 INFO L93 Difference]: Finished difference Result 357 states and 466 transitions. [2024-11-08 19:19:12,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 19:19:12,899 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 137 [2024-11-08 19:19:12,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:19:12,901 INFO L225 Difference]: With dead ends: 357 [2024-11-08 19:19:12,901 INFO L226 Difference]: Without dead ends: 240 [2024-11-08 19:19:12,901 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-08 19:19:12,902 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 127 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 899 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:19:12,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 899 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 19:19:12,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2024-11-08 19:19:12,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 124. [2024-11-08 19:19:12,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 101 states have (on average 1.2673267326732673) internal successors, (128), 101 states have internal predecessors, (128), 17 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 19:19:12,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 162 transitions. [2024-11-08 19:19:12,932 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 162 transitions. Word has length 137 [2024-11-08 19:19:12,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:19:12,933 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 162 transitions. [2024-11-08 19:19:12,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:19:12,933 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 162 transitions. [2024-11-08 19:19:12,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-08 19:19:12,944 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:19:12,944 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:19:12,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-08 19:19:13,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:13,145 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:19:13,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:19:13,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1098252659, now seen corresponding path program 1 times [2024-11-08 19:19:13,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:19:13,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [81252216] [2024-11-08 19:19:13,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:19:13,146 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 19:19:13,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:19:13,147 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:13,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:13,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:13,447 INFO L255 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 19:19:13,450 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:19:13,481 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 19:19:13,505 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 19:19:13,505 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:19:13,506 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:19:13,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [81252216] [2024-11-08 19:19:13,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [81252216] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:19:13,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:19:13,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:19:13,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405496318] [2024-11-08 19:19:13,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:19:13,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:19:13,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:19:13,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:19:13,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:19:13,510 INFO L87 Difference]: Start difference. First operand 124 states and 162 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:19:14,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:19:14,726 INFO L93 Difference]: Finished difference Result 245 states and 321 transitions. [2024-11-08 19:19:14,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:19:14,727 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 137 [2024-11-08 19:19:14,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:19:14,730 INFO L225 Difference]: With dead ends: 245 [2024-11-08 19:19:14,731 INFO L226 Difference]: Without dead ends: 124 [2024-11-08 19:19:14,731 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 133 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 19:19:14,732 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 120 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:19:14,732 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 314 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 19:19:14,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-11-08 19:19:14,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2024-11-08 19:19:14,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 101 states have (on average 1.2475247524752475) internal successors, (126), 101 states have internal predecessors, (126), 17 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 19:19:14,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 160 transitions. [2024-11-08 19:19:14,758 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 160 transitions. Word has length 137 [2024-11-08 19:19:14,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:19:14,758 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 160 transitions. [2024-11-08 19:19:14,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:19:14,759 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 160 transitions. [2024-11-08 19:19:14,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-08 19:19:14,761 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:19:14,761 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:19:14,768 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:14,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:14,965 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:19:14,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:19:14,966 INFO L85 PathProgramCache]: Analyzing trace with hash 737879862, now seen corresponding path program 1 times [2024-11-08 19:19:14,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:19:14,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1849340069] [2024-11-08 19:19:14,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:19:14,967 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 19:19:14,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:19:14,970 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:14,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:15,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:15,285 INFO L255 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 19:19:15,288 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:19:15,316 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 19:19:15,367 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 19:19:15,367 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:19:15,367 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:19:15,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1849340069] [2024-11-08 19:19:15,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1849340069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:19:15,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:19:15,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:19:15,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997022444] [2024-11-08 19:19:15,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:19:15,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:19:15,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:19:15,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:19:15,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:19:15,369 INFO L87 Difference]: Start difference. First operand 124 states and 160 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:19:16,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:19:16,089 INFO L93 Difference]: Finished difference Result 245 states and 317 transitions. [2024-11-08 19:19:16,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:19:16,089 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 138 [2024-11-08 19:19:16,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:19:16,091 INFO L225 Difference]: With dead ends: 245 [2024-11-08 19:19:16,091 INFO L226 Difference]: Without dead ends: 124 [2024-11-08 19:19:16,091 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 134 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 19:19:16,092 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 120 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 19:19:16,092 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 312 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 19:19:16,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-11-08 19:19:16,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2024-11-08 19:19:16,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 101 states have (on average 1.2376237623762376) internal successors, (125), 101 states have internal predecessors, (125), 17 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 19:19:16,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 159 transitions. [2024-11-08 19:19:16,110 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 159 transitions. Word has length 138 [2024-11-08 19:19:16,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:19:16,111 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 159 transitions. [2024-11-08 19:19:16,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:19:16,111 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 159 transitions. [2024-11-08 19:19:16,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-08 19:19:16,112 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:19:16,112 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:19:16,117 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:16,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:16,312 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:19:16,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:19:16,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1868143692, now seen corresponding path program 1 times [2024-11-08 19:19:16,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:19:16,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [452430739] [2024-11-08 19:19:16,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:19:16,314 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 19:19:16,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:19:16,315 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:16,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:16,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:16,642 INFO L255 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-08 19:19:16,647 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:19:16,655 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 19:19:16,930 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 41 treesize of output 32 [2024-11-08 19:19:17,986 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:19:17,987 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 39 treesize of output 25 [2024-11-08 19:19:17,992 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 17 treesize of output 13 [2024-11-08 19:19:18,322 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 30 [2024-11-08 19:19:18,374 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 30 treesize of output 18 [2024-11-08 19:19:18,380 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 37 treesize of output 19 [2024-11-08 19:19:18,947 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 264 proven. 60 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 19:19:18,947 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:19:19,347 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 19:19:19,348 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:19:19,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [452430739] [2024-11-08 19:19:19,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [452430739] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:19:19,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:19:19,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [16] total 19 [2024-11-08 19:19:19,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33060821] [2024-11-08 19:19:19,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:19:19,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:19:19,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:19:19,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:19:19,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2024-11-08 19:19:19,351 INFO L87 Difference]: Start difference. First operand 124 states and 159 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:19:19,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:19:19,819 INFO L93 Difference]: Finished difference Result 344 states and 441 transitions. [2024-11-08 19:19:19,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:19:19,821 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 138 [2024-11-08 19:19:19,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:19:19,823 INFO L225 Difference]: With dead ends: 344 [2024-11-08 19:19:19,823 INFO L226 Difference]: Without dead ends: 223 [2024-11-08 19:19:19,824 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2024-11-08 19:19:19,825 INFO L432 NwaCegarLoop]: 222 mSDtfsCounter, 104 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:19:19,825 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 644 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 19:19:19,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-11-08 19:19:19,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 124. [2024-11-08 19:19:19,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 101 states have (on average 1.2277227722772277) internal successors, (124), 101 states have internal predecessors, (124), 17 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 19:19:19,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 158 transitions. [2024-11-08 19:19:19,848 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 158 transitions. Word has length 138 [2024-11-08 19:19:19,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:19:19,849 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 158 transitions. [2024-11-08 19:19:19,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:19:19,850 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 158 transitions. [2024-11-08 19:19:19,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-08 19:19:19,851 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:19:19,851 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:19:19,858 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:20,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:20,052 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:19:20,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:19:20,052 INFO L85 PathProgramCache]: Analyzing trace with hash 289373189, now seen corresponding path program 1 times [2024-11-08 19:19:20,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:19:20,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [592564592] [2024-11-08 19:19:20,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:19:20,053 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 19:19:20,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:19:20,056 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:20,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:20,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:20,455 INFO L255 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 19:19:20,461 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:19:20,471 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 19:19:20,524 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 23 treesize of output 22 [2024-11-08 19:19:21,065 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:19:21,066 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 43 [2024-11-08 19:19:21,260 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:19:21,260 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 112 treesize of output 60 [2024-11-08 19:19:21,318 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 320 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-08 19:19:21,318 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:19:21,318 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:19:21,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [592564592] [2024-11-08 19:19:21,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [592564592] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:19:21,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:19:21,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 19:19:21,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899397153] [2024-11-08 19:19:21,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:19:21,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 19:19:21,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:19:21,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 19:19:21,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:19:21,321 INFO L87 Difference]: Start difference. First operand 124 states and 158 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-08 19:19:21,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:19:21,893 INFO L93 Difference]: Finished difference Result 335 states and 421 transitions. [2024-11-08 19:19:21,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 19:19:21,894 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 139 [2024-11-08 19:19:21,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:19:21,896 INFO L225 Difference]: With dead ends: 335 [2024-11-08 19:19:21,896 INFO L226 Difference]: Without dead ends: 214 [2024-11-08 19:19:21,897 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:19:21,897 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 285 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 19:19:21,898 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 645 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 19:19:21,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2024-11-08 19:19:21,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 211. [2024-11-08 19:19:21,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 178 states have (on average 1.2303370786516854) internal successors, (219), 179 states have internal predecessors, (219), 22 states have call successors, (22), 10 states have call predecessors, (22), 10 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-08 19:19:21,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 263 transitions. [2024-11-08 19:19:21,938 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 263 transitions. Word has length 139 [2024-11-08 19:19:21,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:19:21,938 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 263 transitions. [2024-11-08 19:19:21,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-08 19:19:21,939 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 263 transitions. [2024-11-08 19:19:21,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-08 19:19:21,940 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:19:21,940 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:19:21,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-08 19:19:22,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:22,141 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:19:22,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:19:22,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1290529425, now seen corresponding path program 1 times [2024-11-08 19:19:22,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:19:22,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [639545778] [2024-11-08 19:19:22,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:19:22,142 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 19:19:22,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:19:22,143 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:22,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:22,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:22,477 INFO L255 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-08 19:19:22,482 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:19:22,494 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 19:19:22,641 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 28 [2024-11-08 19:19:23,368 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:19:23,368 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 49 treesize of output 31 [2024-11-08 19:19:23,373 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 16 treesize of output 12 [2024-11-08 19:19:23,608 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 30 [2024-11-08 19:19:23,742 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 31 treesize of output 19 [2024-11-08 19:19:23,748 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 37 treesize of output 19 [2024-11-08 19:19:26,083 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 259 proven. 60 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2024-11-08 19:19:26,084 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:19:26,858 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 19:19:26,858 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:19:26,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [639545778] [2024-11-08 19:19:26,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [639545778] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:19:26,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:19:26,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [15] total 18 [2024-11-08 19:19:26,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748225389] [2024-11-08 19:19:26,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:19:26,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:19:26,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:19:26,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:19:26,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2024-11-08 19:19:26,860 INFO L87 Difference]: Start difference. First operand 211 states and 263 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:19:27,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:19:27,430 INFO L93 Difference]: Finished difference Result 582 states and 725 transitions. [2024-11-08 19:19:27,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:19:27,431 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-11-08 19:19:27,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:19:27,435 INFO L225 Difference]: With dead ends: 582 [2024-11-08 19:19:27,435 INFO L226 Difference]: Without dead ends: 374 [2024-11-08 19:19:27,436 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2024-11-08 19:19:27,436 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 102 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:19:27,437 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 453 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 19:19:27,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2024-11-08 19:19:27,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 211. [2024-11-08 19:19:27,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 178 states have (on average 1.2191011235955056) internal successors, (217), 179 states have internal predecessors, (217), 22 states have call successors, (22), 10 states have call predecessors, (22), 10 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-08 19:19:27,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 261 transitions. [2024-11-08 19:19:27,481 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 261 transitions. Word has length 139 [2024-11-08 19:19:27,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:19:27,482 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 261 transitions. [2024-11-08 19:19:27,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:19:27,482 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 261 transitions. [2024-11-08 19:19:27,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-08 19:19:27,483 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:19:27,484 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:19:27,492 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-08 19:19:27,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:27,685 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:19:27,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:19:27,685 INFO L85 PathProgramCache]: Analyzing trace with hash 941606137, now seen corresponding path program 1 times [2024-11-08 19:19:27,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:19:27,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1229058189] [2024-11-08 19:19:27,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:19:27,686 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 19:19:27,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:19:27,689 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:27,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:28,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:28,082 INFO L255 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-08 19:19:28,087 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:19:28,096 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 19:19:28,100 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 19:19:28,151 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 30 treesize of output 14 [2024-11-08 19:19:28,242 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 30 treesize of output 14 [2024-11-08 19:19:28,338 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:19:28,338 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 66 treesize of output 59 [2024-11-08 19:19:28,461 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:19:28,464 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 149 treesize of output 77 [2024-11-08 19:19:28,551 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 264 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-08 19:19:28,551 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:19:28,551 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:19:28,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1229058189] [2024-11-08 19:19:28,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1229058189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:19:28,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:19:28,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 19:19:28,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742010416] [2024-11-08 19:19:28,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:19:28,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 19:19:28,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:19:28,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 19:19:28,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:19:28,554 INFO L87 Difference]: Start difference. First operand 211 states and 261 transitions. Second operand has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 19:19:29,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:19:29,953 INFO L93 Difference]: Finished difference Result 562 states and 689 transitions. [2024-11-08 19:19:29,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 19:19:29,954 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 140 [2024-11-08 19:19:29,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:19:29,957 INFO L225 Difference]: With dead ends: 562 [2024-11-08 19:19:29,957 INFO L226 Difference]: Without dead ends: 354 [2024-11-08 19:19:29,958 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-08 19:19:29,959 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 279 mSDsluCounter, 959 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 1133 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:19:29,959 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 1133 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 19:19:29,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2024-11-08 19:19:30,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 348. [2024-11-08 19:19:30,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 282 states have (on average 1.198581560283688) internal successors, (338), 285 states have internal predecessors, (338), 44 states have call successors, (44), 21 states have call predecessors, (44), 21 states have return successors, (44), 41 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-08 19:19:30,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 426 transitions. [2024-11-08 19:19:30,044 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 426 transitions. Word has length 140 [2024-11-08 19:19:30,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:19:30,044 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 426 transitions. [2024-11-08 19:19:30,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 19:19:30,045 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 426 transitions. [2024-11-08 19:19:30,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-08 19:19:30,046 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:19:30,046 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:19:30,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-08 19:19:30,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:30,247 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:19:30,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:19:30,247 INFO L85 PathProgramCache]: Analyzing trace with hash -646741765, now seen corresponding path program 1 times [2024-11-08 19:19:30,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:19:30,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2036638176] [2024-11-08 19:19:30,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:19:30,248 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 19:19:30,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:19:30,251 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:30,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:30,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:30,508 INFO L255 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 19:19:30,511 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:19:30,545 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 19:19:30,563 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 19:19:30,563 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:19:30,563 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:19:30,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2036638176] [2024-11-08 19:19:30,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2036638176] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:19:30,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:19:30,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:19:30,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49307960] [2024-11-08 19:19:30,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:19:30,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:19:30,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:19:30,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:19:30,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:19:30,565 INFO L87 Difference]: Start difference. First operand 348 states and 426 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:19:31,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:19:31,793 INFO L93 Difference]: Finished difference Result 657 states and 808 transitions. [2024-11-08 19:19:31,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:19:31,793 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 140 [2024-11-08 19:19:31,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:19:31,796 INFO L225 Difference]: With dead ends: 657 [2024-11-08 19:19:31,796 INFO L226 Difference]: Without dead ends: 344 [2024-11-08 19:19:31,796 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 136 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 19:19:31,797 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 115 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:19:31,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 308 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 19:19:31,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2024-11-08 19:19:31,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 344. [2024-11-08 19:19:31,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 278 states have (on average 1.1906474820143884) internal successors, (331), 281 states have internal predecessors, (331), 44 states have call successors, (44), 21 states have call predecessors, (44), 21 states have return successors, (44), 41 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-08 19:19:31,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 419 transitions. [2024-11-08 19:19:31,877 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 419 transitions. Word has length 140 [2024-11-08 19:19:31,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:19:31,878 INFO L471 AbstractCegarLoop]: Abstraction has 344 states and 419 transitions. [2024-11-08 19:19:31,878 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:19:31,878 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 419 transitions. [2024-11-08 19:19:31,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-08 19:19:31,879 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:19:31,879 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:19:31,890 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Ended with exit code 0 [2024-11-08 19:19:32,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:32,080 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:19:32,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:19:32,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1937733560, now seen corresponding path program 1 times [2024-11-08 19:19:32,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:19:32,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [537357699] [2024-11-08 19:19:32,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:19:32,081 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 19:19:32,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:19:32,082 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:32,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:32,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:32,416 INFO L255 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-08 19:19:32,419 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:19:32,425 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 19:19:32,522 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 30 treesize of output 14 [2024-11-08 19:19:32,639 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 48 treesize of output 26 [2024-11-08 19:19:32,728 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 27 treesize of output 19 [2024-11-08 19:19:32,733 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 35 treesize of output 17 [2024-11-08 19:19:32,764 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2024-11-08 19:19:32,764 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:19:32,764 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:19:32,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [537357699] [2024-11-08 19:19:32,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [537357699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:19:32,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:19:32,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 19:19:32,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818691958] [2024-11-08 19:19:32,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:19:32,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:19:32,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:19:32,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:19:32,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:19:32,766 INFO L87 Difference]: Start difference. First operand 344 states and 419 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 19:19:37,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 19:19:37,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:19:37,646 INFO L93 Difference]: Finished difference Result 680 states and 831 transitions. [2024-11-08 19:19:37,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 19:19:37,647 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 140 [2024-11-08 19:19:37,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:19:37,650 INFO L225 Difference]: With dead ends: 680 [2024-11-08 19:19:37,650 INFO L226 Difference]: Without dead ends: 371 [2024-11-08 19:19:37,651 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 134 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:19:37,651 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 220 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 37 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-08 19:19:37,652 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 481 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 186 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2024-11-08 19:19:37,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2024-11-08 19:19:37,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 316. [2024-11-08 19:19:37,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 258 states have (on average 1.189922480620155) internal successors, (307), 260 states have internal predecessors, (307), 39 states have call successors, (39), 18 states have call predecessors, (39), 18 states have return successors, (39), 37 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-08 19:19:37,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 385 transitions. [2024-11-08 19:19:37,720 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 385 transitions. Word has length 140 [2024-11-08 19:19:37,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:19:37,721 INFO L471 AbstractCegarLoop]: Abstraction has 316 states and 385 transitions. [2024-11-08 19:19:37,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 19:19:37,721 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 385 transitions. [2024-11-08 19:19:37,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-08 19:19:37,722 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:19:37,722 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:19:37,728 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:37,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:37,923 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:19:37,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:19:37,923 INFO L85 PathProgramCache]: Analyzing trace with hash -515331039, now seen corresponding path program 1 times [2024-11-08 19:19:37,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:19:37,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [379215067] [2024-11-08 19:19:37,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:19:37,924 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 19:19:37,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:19:37,926 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:37,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:38,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:38,231 INFO L255 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 19:19:38,233 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:19:38,257 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 19:19:38,257 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:19:38,257 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:19:38,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [379215067] [2024-11-08 19:19:38,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [379215067] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:19:38,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:19:38,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 19:19:38,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996925887] [2024-11-08 19:19:38,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:19:38,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:19:38,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:19:38,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:19:38,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:19:38,259 INFO L87 Difference]: Start difference. First operand 316 states and 385 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:19:38,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:19:38,357 INFO L93 Difference]: Finished difference Result 641 states and 782 transitions. [2024-11-08 19:19:38,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 19:19:38,361 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 141 [2024-11-08 19:19:38,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:19:38,363 INFO L225 Difference]: With dead ends: 641 [2024-11-08 19:19:38,363 INFO L226 Difference]: Without dead ends: 328 [2024-11-08 19:19:38,364 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 136 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 19:19:38,365 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 0 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:19:38,365 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 634 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:19:38,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2024-11-08 19:19:38,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 322. [2024-11-08 19:19:38,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 264 states have (on average 1.1856060606060606) internal successors, (313), 266 states have internal predecessors, (313), 39 states have call successors, (39), 18 states have call predecessors, (39), 18 states have return successors, (39), 37 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-08 19:19:38,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 391 transitions. [2024-11-08 19:19:38,451 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 391 transitions. Word has length 141 [2024-11-08 19:19:38,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:19:38,452 INFO L471 AbstractCegarLoop]: Abstraction has 322 states and 391 transitions. [2024-11-08 19:19:38,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:19:38,452 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 391 transitions. [2024-11-08 19:19:38,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-08 19:19:38,453 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:19:38,454 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:19:38,461 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:38,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:38,654 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:19:38,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:19:38,655 INFO L85 PathProgramCache]: Analyzing trace with hash 501170086, now seen corresponding path program 1 times [2024-11-08 19:19:38,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:19:38,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [733344455] [2024-11-08 19:19:38,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:19:38,656 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 19:19:38,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:19:38,659 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:38,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2024-11-08 19:19:39,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:39,028 INFO L255 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-08 19:19:39,040 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:19:39,047 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 19:19:39,052 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 14 treesize of output 10 [2024-11-08 19:19:39,127 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 30 treesize of output 14 [2024-11-08 19:19:39,429 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:19:39,429 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 41 treesize of output 28 [2024-11-08 19:19:39,525 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:19:39,526 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 65 treesize of output 58 [2024-11-08 19:19:39,671 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:19:39,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 148 treesize of output 76 [2024-11-08 19:19:39,773 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 297 proven. 9 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2024-11-08 19:19:39,773 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:19:40,148 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 19:19:40,148 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:19:40,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [733344455] [2024-11-08 19:19:40,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [733344455] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:19:40,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:19:40,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 16 [2024-11-08 19:19:40,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128202291] [2024-11-08 19:19:40,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:19:40,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 19:19:40,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:19:40,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 19:19:40,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-11-08 19:19:40,150 INFO L87 Difference]: Start difference. First operand 322 states and 391 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:19:40,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:19:40,656 INFO L93 Difference]: Finished difference Result 723 states and 877 transitions. [2024-11-08 19:19:40,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 19:19:40,657 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 141 [2024-11-08 19:19:40,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:19:40,660 INFO L225 Difference]: With dead ends: 723 [2024-11-08 19:19:40,660 INFO L226 Difference]: Without dead ends: 404 [2024-11-08 19:19:40,661 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2024-11-08 19:19:40,663 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 80 mSDsluCounter, 893 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 1097 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:19:40,663 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 1097 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:19:40,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2024-11-08 19:19:40,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 400. [2024-11-08 19:19:40,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 328 states have (on average 1.1859756097560976) internal successors, (389), 331 states have internal predecessors, (389), 48 states have call successors, (48), 23 states have call predecessors, (48), 23 states have return successors, (48), 45 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-08 19:19:40,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 485 transitions. [2024-11-08 19:19:40,779 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 485 transitions. Word has length 141 [2024-11-08 19:19:40,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:19:40,780 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 485 transitions. [2024-11-08 19:19:40,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:19:40,780 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 485 transitions. [2024-11-08 19:19:40,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-08 19:19:40,781 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:19:40,781 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:19:40,790 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2024-11-08 19:19:40,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:40,984 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:19:40,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:19:40,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1298468113, now seen corresponding path program 1 times [2024-11-08 19:19:40,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:19:40,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [755407846] [2024-11-08 19:19:40,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:19:40,985 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 19:19:40,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:19:40,990 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:40,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:41,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:41,281 INFO L255 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 19:19:41,284 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:19:42,711 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 121 treesize of output 61 [2024-11-08 19:19:43,171 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:19:43,171 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 19:19:43,248 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2024-11-08 19:19:43,248 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:19:43,248 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:19:43,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [755407846] [2024-11-08 19:19:43,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [755407846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:19:43,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:19:43,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 19:19:43,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590200610] [2024-11-08 19:19:43,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:19:43,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 19:19:43,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:19:43,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 19:19:43,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:19:43,251 INFO L87 Difference]: Start difference. First operand 400 states and 485 transitions. Second operand has 10 states, 10 states have (on average 6.4) internal successors, (64), 9 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 19:19:44,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:19:44,610 INFO L93 Difference]: Finished difference Result 1172 states and 1414 transitions. [2024-11-08 19:19:44,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 19:19:44,611 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 9 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 143 [2024-11-08 19:19:44,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:19:44,615 INFO L225 Difference]: With dead ends: 1172 [2024-11-08 19:19:44,616 INFO L226 Difference]: Without dead ends: 775 [2024-11-08 19:19:44,617 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-08 19:19:44,618 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 212 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:19:44,619 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 674 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 19:19:44,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2024-11-08 19:19:44,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 593. [2024-11-08 19:19:44,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 482 states have (on average 1.1742738589211619) internal successors, (566), 488 states have internal predecessors, (566), 80 states have call successors, (80), 30 states have call predecessors, (80), 30 states have return successors, (80), 74 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-08 19:19:44,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 726 transitions. [2024-11-08 19:19:44,901 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 726 transitions. Word has length 143 [2024-11-08 19:19:44,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:19:44,901 INFO L471 AbstractCegarLoop]: Abstraction has 593 states and 726 transitions. [2024-11-08 19:19:44,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 9 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 19:19:44,902 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 726 transitions. [2024-11-08 19:19:44,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-08 19:19:44,903 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:19:44,903 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:19:44,910 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:45,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:45,104 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:19:45,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:19:45,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1262556262, now seen corresponding path program 1 times [2024-11-08 19:19:45,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:19:45,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2024708078] [2024-11-08 19:19:45,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:19:45,105 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 19:19:45,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:19:45,106 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:45,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:45,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:45,492 INFO L255 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 19:19:45,496 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:19:45,504 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 19:19:45,508 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 19 treesize of output 19 [2024-11-08 19:19:45,731 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:19:45,732 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 67 treesize of output 33 [2024-11-08 19:19:45,752 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 19:19:45,753 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:19:45,753 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:19:45,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2024708078] [2024-11-08 19:19:45,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2024708078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:19:45,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:19:45,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 19:19:45,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624255672] [2024-11-08 19:19:45,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:19:45,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 19:19:45,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:19:45,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 19:19:45,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:19:45,755 INFO L87 Difference]: Start difference. First operand 593 states and 726 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:19:46,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:19:46,397 INFO L93 Difference]: Finished difference Result 1296 states and 1585 transitions. [2024-11-08 19:19:46,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 19:19:46,398 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 143 [2024-11-08 19:19:46,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:19:46,402 INFO L225 Difference]: With dead ends: 1296 [2024-11-08 19:19:46,402 INFO L226 Difference]: Without dead ends: 706 [2024-11-08 19:19:46,404 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:19:46,405 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 265 mSDsluCounter, 649 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 831 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:19:46,405 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 831 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 19:19:46,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2024-11-08 19:19:46,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 684. [2024-11-08 19:19:46,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 684 states, 539 states have (on average 1.155844155844156) internal successors, (623), 547 states have internal predecessors, (623), 106 states have call successors, (106), 38 states have call predecessors, (106), 38 states have return successors, (106), 98 states have call predecessors, (106), 106 states have call successors, (106) [2024-11-08 19:19:46,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 835 transitions. [2024-11-08 19:19:46,652 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 835 transitions. Word has length 143 [2024-11-08 19:19:46,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:19:46,653 INFO L471 AbstractCegarLoop]: Abstraction has 684 states and 835 transitions. [2024-11-08 19:19:46,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:19:46,653 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 835 transitions. [2024-11-08 19:19:46,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-08 19:19:46,655 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:19:46,656 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:19:46,664 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:46,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:46,856 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:19:46,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:19:46,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1255556630, now seen corresponding path program 1 times [2024-11-08 19:19:46,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:19:46,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [989072793] [2024-11-08 19:19:46,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:19:46,858 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 19:19:46,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:19:46,861 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:46,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:47,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:47,354 INFO L255 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-08 19:19:47,359 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:19:47,372 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 19:19:47,607 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 41 treesize of output 32 [2024-11-08 19:19:48,535 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 20 treesize of output 16 [2024-11-08 19:19:48,694 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:19:48,694 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 72 treesize of output 47 [2024-11-08 19:19:48,850 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 20 [2024-11-08 19:19:49,358 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 60 treesize of output 42 [2024-11-08 19:19:49,366 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:19:49,366 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 82 treesize of output 48 [2024-11-08 19:19:49,439 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 264 proven. 60 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 19:19:49,440 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:19:49,785 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 19:19:49,786 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:19:49,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [989072793] [2024-11-08 19:19:49,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [989072793] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:19:49,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:19:49,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [16] total 19 [2024-11-08 19:19:49,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710750973] [2024-11-08 19:19:49,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:19:49,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:19:49,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:19:49,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:19:49,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2024-11-08 19:19:49,788 INFO L87 Difference]: Start difference. First operand 684 states and 835 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:19:50,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:19:50,205 INFO L93 Difference]: Finished difference Result 714 states and 864 transitions. [2024-11-08 19:19:50,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 19:19:50,206 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 143 [2024-11-08 19:19:50,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:19:50,210 INFO L225 Difference]: With dead ends: 714 [2024-11-08 19:19:50,210 INFO L226 Difference]: Without dead ends: 712 [2024-11-08 19:19:50,211 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 266 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2024-11-08 19:19:50,211 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 65 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:19:50,212 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 614 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:19:50,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2024-11-08 19:19:50,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 466. [2024-11-08 19:19:50,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 369 states have (on average 1.1409214092140922) internal successors, (421), 373 states have internal predecessors, (421), 70 states have call successors, (70), 26 states have call predecessors, (70), 26 states have return successors, (70), 66 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-08 19:19:50,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 561 transitions. [2024-11-08 19:19:50,393 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 561 transitions. Word has length 143 [2024-11-08 19:19:50,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:19:50,394 INFO L471 AbstractCegarLoop]: Abstraction has 466 states and 561 transitions. [2024-11-08 19:19:50,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:19:50,394 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 561 transitions. [2024-11-08 19:19:50,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-08 19:19:50,396 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:19:50,396 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:19:50,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-08 19:19:50,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:50,601 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:19:50,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:19:50,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1257403672, now seen corresponding path program 1 times [2024-11-08 19:19:50,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:19:50,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1762338763] [2024-11-08 19:19:50,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:19:50,603 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 19:19:50,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:19:50,606 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:50,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:50,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:50,996 INFO L255 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-08 19:19:50,999 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:19:51,051 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 19:19:52,002 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 121 treesize of output 61 [2024-11-08 19:19:52,512 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:19:52,512 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 203 treesize of output 77 [2024-11-08 19:19:52,609 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 208 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2024-11-08 19:19:52,610 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:19:52,830 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:19:52,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1762338763] [2024-11-08 19:19:52,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1762338763] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:19:52,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1260895435] [2024-11-08 19:19:52,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:19:52,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:19:52,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:19:52,832 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:19:52,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-08 19:19:53,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:53,209 INFO L255 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-08 19:19:53,213 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:19:54,003 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 91 treesize of output 49 [2024-11-08 19:19:54,654 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:19:54,654 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 173 treesize of output 65 [2024-11-08 19:19:54,684 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2024-11-08 19:19:54,684 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:19:54,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1260895435] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:19:54,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:19:54,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [9] total 17 [2024-11-08 19:19:54,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726623778] [2024-11-08 19:19:54,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:19:54,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 19:19:54,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:19:54,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 19:19:54,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2024-11-08 19:19:54,686 INFO L87 Difference]: Start difference. First operand 466 states and 561 transitions. Second operand has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 19:19:55,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:19:55,690 INFO L93 Difference]: Finished difference Result 944 states and 1117 transitions. [2024-11-08 19:19:55,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 19:19:55,691 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), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 143 [2024-11-08 19:19:55,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:19:55,695 INFO L225 Difference]: With dead ends: 944 [2024-11-08 19:19:55,695 INFO L226 Difference]: Without dead ends: 564 [2024-11-08 19:19:55,696 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2024-11-08 19:19:55,697 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 140 mSDsluCounter, 837 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 977 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 19:19:55,698 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 977 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 19:19:55,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2024-11-08 19:19:55,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 484. [2024-11-08 19:19:55,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 387 states have (on average 1.144702842377261) internal successors, (443), 391 states have internal predecessors, (443), 70 states have call successors, (70), 26 states have call predecessors, (70), 26 states have return successors, (70), 66 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-08 19:19:55,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 583 transitions. [2024-11-08 19:19:55,878 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 583 transitions. Word has length 143 [2024-11-08 19:19:55,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:19:55,880 INFO L471 AbstractCegarLoop]: Abstraction has 484 states and 583 transitions. [2024-11-08 19:19:55,880 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), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 19:19:55,880 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 583 transitions. [2024-11-08 19:19:55,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-08 19:19:55,882 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:19:55,882 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:19:55,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-08 19:19:56,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-08 19:19:56,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:19:56,283 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:19:56,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:19:56,283 INFO L85 PathProgramCache]: Analyzing trace with hash -582497892, now seen corresponding path program 1 times [2024-11-08 19:19:56,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:19:56,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1674316127] [2024-11-08 19:19:56,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:19:56,284 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 19:19:56,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:19:56,285 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:56,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:56,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:56,648 INFO L255 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-08 19:19:56,652 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:19:56,664 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 19:19:56,827 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 19:19:57,408 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 19:19:57,661 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:19:57,661 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 19:19:57,774 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 34 proven. 90 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-08 19:19:57,775 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:19:58,425 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 19:19:58,425 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:19:58,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1674316127] [2024-11-08 19:19:58,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1674316127] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:19:58,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:19:58,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [17] total 22 [2024-11-08 19:19:58,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734041283] [2024-11-08 19:19:58,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:19:58,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 19:19:58,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:19:58,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 19:19:58,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2024-11-08 19:19:58,428 INFO L87 Difference]: Start difference. First operand 484 states and 583 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:19:59,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:19:59,034 INFO L93 Difference]: Finished difference Result 1020 states and 1222 transitions. [2024-11-08 19:19:59,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 19:19:59,034 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 143 [2024-11-08 19:19:59,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:19:59,036 INFO L225 Difference]: With dead ends: 1020 [2024-11-08 19:19:59,037 INFO L226 Difference]: Without dead ends: 622 [2024-11-08 19:19:59,038 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=83, Invalid=619, Unknown=0, NotChecked=0, Total=702 [2024-11-08 19:19:59,038 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 51 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 888 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:19:59,039 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 888 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 19:19:59,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2024-11-08 19:19:59,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 570. [2024-11-08 19:19:59,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 473 states have (on average 1.1543340380549683) internal successors, (546), 477 states have internal predecessors, (546), 70 states have call successors, (70), 26 states have call predecessors, (70), 26 states have return successors, (70), 66 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-08 19:19:59,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 686 transitions. [2024-11-08 19:19:59,192 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 686 transitions. Word has length 143 [2024-11-08 19:19:59,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:19:59,193 INFO L471 AbstractCegarLoop]: Abstraction has 570 states and 686 transitions. [2024-11-08 19:19:59,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:19:59,193 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 686 transitions. [2024-11-08 19:19:59,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-08 19:19:59,195 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:19:59,195 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:19:59,202 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Ended with exit code 0 [2024-11-08 19:19:59,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:59,395 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:19:59,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:19:59,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1169303906, now seen corresponding path program 1 times [2024-11-08 19:19:59,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:19:59,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2016024398] [2024-11-08 19:19:59,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:19:59,397 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 19:19:59,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:19:59,400 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:59,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2024-11-08 19:19:59,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:59,815 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 19:19:59,819 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:19:59,829 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 19:20:00,483 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 59 treesize of output 43 [2024-11-08 19:20:00,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 19:20:00,491 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 61 [2024-11-08 19:20:00,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 19:20:00,516 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 12 [2024-11-08 19:20:00,908 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:20:00,908 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 91 treesize of output 47 [2024-11-08 19:20:00,942 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 148 proven. 78 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2024-11-08 19:20:00,942 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:20:01,452 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 12 proven. 78 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2024-11-08 19:20:01,453 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:20:01,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2016024398] [2024-11-08 19:20:01,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2016024398] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:20:01,453 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 19:20:01,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 16 [2024-11-08 19:20:01,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884798372] [2024-11-08 19:20:01,453 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 19:20:01,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-08 19:20:01,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:20:01,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-08 19:20:01,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-08 19:20:01,456 INFO L87 Difference]: Start difference. First operand 570 states and 686 transitions. Second operand has 16 states, 12 states have (on average 9.333333333333334) internal successors, (112), 16 states have internal predecessors, (112), 7 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 3 states have call predecessors, (32), 7 states have call successors, (32) [2024-11-08 19:20:02,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:20:02,356 INFO L93 Difference]: Finished difference Result 1050 states and 1256 transitions. [2024-11-08 19:20:02,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-08 19:20:02,357 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 12 states have (on average 9.333333333333334) internal successors, (112), 16 states have internal predecessors, (112), 7 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 3 states have call predecessors, (32), 7 states have call successors, (32) Word has length 143 [2024-11-08 19:20:02,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:20:02,359 INFO L225 Difference]: With dead ends: 1050 [2024-11-08 19:20:02,359 INFO L226 Difference]: Without dead ends: 566 [2024-11-08 19:20:02,360 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 269 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=151, Invalid=401, Unknown=0, NotChecked=0, Total=552 [2024-11-08 19:20:02,360 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 202 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 19:20:02,360 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 646 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 19:20:02,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2024-11-08 19:20:02,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 562. [2024-11-08 19:20:02,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 465 states have (on average 1.1397849462365592) internal successors, (530), 469 states have internal predecessors, (530), 70 states have call successors, (70), 26 states have call predecessors, (70), 26 states have return successors, (70), 66 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-08 19:20:02,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 670 transitions. [2024-11-08 19:20:02,547 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 670 transitions. Word has length 143 [2024-11-08 19:20:02,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:20:02,547 INFO L471 AbstractCegarLoop]: Abstraction has 562 states and 670 transitions. [2024-11-08 19:20:02,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 12 states have (on average 9.333333333333334) internal successors, (112), 16 states have internal predecessors, (112), 7 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 3 states have call predecessors, (32), 7 states have call successors, (32) [2024-11-08 19:20:02,548 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 670 transitions. [2024-11-08 19:20:02,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-08 19:20:02,549 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:20:02,549 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:20:02,559 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Ended with exit code 0 [2024-11-08 19:20:02,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:02,753 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:20:02,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:20:02,753 INFO L85 PathProgramCache]: Analyzing trace with hash 2053371900, now seen corresponding path program 1 times [2024-11-08 19:20:02,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:20:02,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [408088871] [2024-11-08 19:20:02,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:20:02,754 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 19:20:02,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:20:02,757 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:02,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:03,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:03,137 INFO L255 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-08 19:20:03,140 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:20:03,144 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 19:20:03,151 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 19:20:03,196 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 37 treesize of output 21 [2024-11-08 19:20:03,228 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 26 treesize of output 18 [2024-11-08 19:20:03,232 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 24 treesize of output 12 [2024-11-08 19:20:03,269 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 19:20:03,270 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:20:03,270 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:20:03,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [408088871] [2024-11-08 19:20:03,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [408088871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:20:03,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:20:03,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:20:03,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593137268] [2024-11-08 19:20:03,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:20:03,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:20:03,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:20:03,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:20:03,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:20:03,271 INFO L87 Difference]: Start difference. First operand 562 states and 670 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:20:03,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:20:03,829 INFO L93 Difference]: Finished difference Result 1288 states and 1519 transitions. [2024-11-08 19:20:03,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:20:03,830 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 143 [2024-11-08 19:20:03,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:20:03,833 INFO L225 Difference]: With dead ends: 1288 [2024-11-08 19:20:03,833 INFO L226 Difference]: Without dead ends: 812 [2024-11-08 19:20:03,834 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 139 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 19:20:03,834 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 81 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:20:03,835 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 577 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 19:20:03,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2024-11-08 19:20:04,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 562. [2024-11-08 19:20:04,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 465 states have (on average 1.1268817204301076) internal successors, (524), 469 states have internal predecessors, (524), 70 states have call successors, (70), 26 states have call predecessors, (70), 26 states have return successors, (70), 66 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-08 19:20:04,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 664 transitions. [2024-11-08 19:20:04,019 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 664 transitions. Word has length 143 [2024-11-08 19:20:04,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:20:04,019 INFO L471 AbstractCegarLoop]: Abstraction has 562 states and 664 transitions. [2024-11-08 19:20:04,019 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:20:04,019 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 664 transitions. [2024-11-08 19:20:04,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-08 19:20:04,021 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:20:04,021 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:20:04,028 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Ended with exit code 0 [2024-11-08 19:20:04,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:04,222 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:20:04,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:20:04,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1525347021, now seen corresponding path program 1 times [2024-11-08 19:20:04,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:20:04,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [199706654] [2024-11-08 19:20:04,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:20:04,223 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 19:20:04,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:20:04,224 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:04,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:04,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:04,510 INFO L255 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 19:20:04,512 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:20:04,522 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2024-11-08 19:20:04,522 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:20:04,522 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:20:04,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [199706654] [2024-11-08 19:20:04,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [199706654] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:20:04,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:20:04,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 19:20:04,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36645355] [2024-11-08 19:20:04,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:20:04,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:20:04,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:20:04,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:20:04,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:20:04,525 INFO L87 Difference]: Start difference. First operand 562 states and 664 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 19:20:04,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:20:04,680 INFO L93 Difference]: Finished difference Result 1063 states and 1253 transitions. [2024-11-08 19:20:04,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:20:04,682 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 143 [2024-11-08 19:20:04,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:20:04,684 INFO L225 Difference]: With dead ends: 1063 [2024-11-08 19:20:04,684 INFO L226 Difference]: Without dead ends: 562 [2024-11-08 19:20:04,685 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 140 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 19:20:04,686 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 0 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 379 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 19:20:04,686 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 379 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:20:04,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2024-11-08 19:20:04,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 562. [2024-11-08 19:20:04,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 465 states have (on average 1.1204301075268817) internal successors, (521), 469 states have internal predecessors, (521), 70 states have call successors, (70), 26 states have call predecessors, (70), 26 states have return successors, (70), 66 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-08 19:20:04,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 661 transitions. [2024-11-08 19:20:04,851 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 661 transitions. Word has length 143 [2024-11-08 19:20:04,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:20:04,852 INFO L471 AbstractCegarLoop]: Abstraction has 562 states and 661 transitions. [2024-11-08 19:20:04,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 19:20:04,852 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 661 transitions. [2024-11-08 19:20:04,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-08 19:20:04,854 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:20:04,854 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:20:04,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-08 19:20:05,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:05,055 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:20:05,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:20:05,055 INFO L85 PathProgramCache]: Analyzing trace with hash -2146901457, now seen corresponding path program 1 times [2024-11-08 19:20:05,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:20:05,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2084959854] [2024-11-08 19:20:05,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:20:05,056 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 19:20:05,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:20:05,057 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:05,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:05,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:05,418 INFO L255 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 19:20:05,421 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:20:05,534 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 14 [2024-11-08 19:20:05,649 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:20:05,649 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 34 treesize of output 36 [2024-11-08 19:20:06,431 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 20 treesize of output 16 [2024-11-08 19:20:06,628 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:20:06,628 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 56 treesize of output 30 [2024-11-08 19:20:06,631 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 23 treesize of output 11 [2024-11-08 19:20:06,671 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 268 proven. 30 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2024-11-08 19:20:06,671 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:20:07,194 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:20:07,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2084959854] [2024-11-08 19:20:07,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2084959854] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:20:07,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071142617] [2024-11-08 19:20:07,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:20:07,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:20:07,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:20:07,196 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:20:07,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-08 19:20:07,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:07,459 INFO L255 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 19:20:07,463 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:20:07,595 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 19:20:07,734 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:20:07,735 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 38 treesize of output 25 [2024-11-08 19:20:08,194 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 20 treesize of output 16 [2024-11-08 19:20:08,389 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:20:08,390 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 19:20:08,457 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 48 treesize of output 26 [2024-11-08 19:20:08,566 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 24 treesize of output 12 [2024-11-08 19:20:08,623 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2024-11-08 19:20:08,624 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:20:08,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1071142617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:20:08,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:20:08,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-11-08 19:20:08,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707394854] [2024-11-08 19:20:08,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:20:08,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 19:20:08,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:20:08,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 19:20:08,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2024-11-08 19:20:08,626 INFO L87 Difference]: Start difference. First operand 562 states and 661 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 7 states have internal predecessors, (65), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 19:20:10,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:20:10,223 INFO L93 Difference]: Finished difference Result 1496 states and 1747 transitions. [2024-11-08 19:20:10,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 19:20:10,225 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 7 states have internal predecessors, (65), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 144 [2024-11-08 19:20:10,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:20:10,229 INFO L225 Difference]: With dead ends: 1496 [2024-11-08 19:20:10,229 INFO L226 Difference]: Without dead ends: 1020 [2024-11-08 19:20:10,230 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 373 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=132, Invalid=570, Unknown=0, NotChecked=0, Total=702 [2024-11-08 19:20:10,231 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 291 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 998 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:20:10,231 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 998 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 19:20:10,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020 states. [2024-11-08 19:20:10,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020 to 1012. [2024-11-08 19:20:10,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 829 states have (on average 1.1170084439083232) internal successors, (926), 835 states have internal predecessors, (926), 130 states have call successors, (130), 52 states have call predecessors, (130), 52 states have return successors, (130), 124 states have call predecessors, (130), 130 states have call successors, (130) [2024-11-08 19:20:10,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1186 transitions. [2024-11-08 19:20:10,526 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1186 transitions. Word has length 144 [2024-11-08 19:20:10,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:20:10,526 INFO L471 AbstractCegarLoop]: Abstraction has 1012 states and 1186 transitions. [2024-11-08 19:20:10,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 7 states have internal predecessors, (65), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 19:20:10,527 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1186 transitions. [2024-11-08 19:20:10,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-08 19:20:10,529 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:20:10,529 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:20:10,537 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Ended with exit code 0 [2024-11-08 19:20:10,751 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-08 19:20:10,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:20:10,930 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:20:10,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:20:10,931 INFO L85 PathProgramCache]: Analyzing trace with hash -573756297, now seen corresponding path program 1 times [2024-11-08 19:20:10,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:20:10,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [164355847] [2024-11-08 19:20:10,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:20:10,932 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 19:20:10,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:20:10,933 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:10,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:11,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:11,318 INFO L255 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-08 19:20:11,322 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:20:11,329 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 19:20:11,378 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 24 treesize of output 23 [2024-11-08 19:20:11,791 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 20 treesize of output 16 [2024-11-08 19:20:11,886 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 27 treesize of output 15 [2024-11-08 19:20:11,974 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:20:11,975 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 54 treesize of output 48 [2024-11-08 19:20:12,235 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:20:12,236 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 94 treesize of output 50 [2024-11-08 19:20:12,377 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 286 proven. 33 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2024-11-08 19:20:12,377 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:20:12,659 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 19:20:12,660 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:20:12,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [164355847] [2024-11-08 19:20:12,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [164355847] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:20:12,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:20:12,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [16] total 20 [2024-11-08 19:20:12,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347601968] [2024-11-08 19:20:12,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:20:12,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 19:20:12,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:20:12,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 19:20:12,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2024-11-08 19:20:12,662 INFO L87 Difference]: Start difference. First operand 1012 states and 1186 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:20:13,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:20:13,233 INFO L93 Difference]: Finished difference Result 2297 states and 2669 transitions. [2024-11-08 19:20:13,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 19:20:13,234 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 145 [2024-11-08 19:20:13,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:20:13,238 INFO L225 Difference]: With dead ends: 2297 [2024-11-08 19:20:13,238 INFO L226 Difference]: Without dead ends: 1371 [2024-11-08 19:20:13,239 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2024-11-08 19:20:13,239 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 63 mSDsluCounter, 1017 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 1207 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 19:20:13,240 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 1207 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:20:13,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1371 states. [2024-11-08 19:20:13,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1371 to 1093. [2024-11-08 19:20:13,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1093 states, 910 states have (on average 1.123076923076923) internal successors, (1022), 916 states have internal predecessors, (1022), 130 states have call successors, (130), 52 states have call predecessors, (130), 52 states have return successors, (130), 124 states have call predecessors, (130), 130 states have call successors, (130) [2024-11-08 19:20:13,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1093 states to 1093 states and 1282 transitions. [2024-11-08 19:20:13,556 INFO L78 Accepts]: Start accepts. Automaton has 1093 states and 1282 transitions. Word has length 145 [2024-11-08 19:20:13,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:20:13,557 INFO L471 AbstractCegarLoop]: Abstraction has 1093 states and 1282 transitions. [2024-11-08 19:20:13,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:20:13,557 INFO L276 IsEmpty]: Start isEmpty. Operand 1093 states and 1282 transitions. [2024-11-08 19:20:13,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-08 19:20:13,559 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:20:13,559 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:20:13,570 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:13,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:13,760 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:20:13,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:20:13,760 INFO L85 PathProgramCache]: Analyzing trace with hash 482671337, now seen corresponding path program 1 times [2024-11-08 19:20:13,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:20:13,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [209640496] [2024-11-08 19:20:13,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:20:13,761 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 19:20:13,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:20:13,762 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:13,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:14,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:14,081 INFO L255 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 19:20:14,085 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:20:14,907 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 90 treesize of output 48 [2024-11-08 19:20:15,377 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:20:15,377 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 119 treesize of output 47 [2024-11-08 19:20:15,484 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 216 proven. 36 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2024-11-08 19:20:15,485 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:20:15,752 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 19:20:15,753 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:20:15,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [209640496] [2024-11-08 19:20:15,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [209640496] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:20:15,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:20:15,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 14 [2024-11-08 19:20:15,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919032074] [2024-11-08 19:20:15,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:20:15,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:20:15,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:20:15,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:20:15,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-08 19:20:15,754 INFO L87 Difference]: Start difference. First operand 1093 states and 1282 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:20:16,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:20:16,775 INFO L93 Difference]: Finished difference Result 2592 states and 3024 transitions. [2024-11-08 19:20:16,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:20:16,776 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 145 [2024-11-08 19:20:16,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:20:16,780 INFO L225 Difference]: With dead ends: 2592 [2024-11-08 19:20:16,780 INFO L226 Difference]: Without dead ends: 1585 [2024-11-08 19:20:16,781 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-11-08 19:20:16,781 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 103 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 19:20:16,782 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 432 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 19:20:16,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1585 states. [2024-11-08 19:20:17,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1585 to 1201. [2024-11-08 19:20:17,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1201 states, 986 states have (on average 1.114604462474645) internal successors, (1099), 994 states have internal predecessors, (1099), 152 states have call successors, (152), 62 states have call predecessors, (152), 62 states have return successors, (152), 144 states have call predecessors, (152), 152 states have call successors, (152) [2024-11-08 19:20:17,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1201 states to 1201 states and 1403 transitions. [2024-11-08 19:20:17,246 INFO L78 Accepts]: Start accepts. Automaton has 1201 states and 1403 transitions. Word has length 145 [2024-11-08 19:20:17,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:20:17,247 INFO L471 AbstractCegarLoop]: Abstraction has 1201 states and 1403 transitions. [2024-11-08 19:20:17,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:20:17,248 INFO L276 IsEmpty]: Start isEmpty. Operand 1201 states and 1403 transitions. [2024-11-08 19:20:17,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-08 19:20:17,249 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:20:17,250 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:20:17,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-08 19:20:17,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:17,450 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:20:17,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:20:17,451 INFO L85 PathProgramCache]: Analyzing trace with hash -2078353038, now seen corresponding path program 1 times [2024-11-08 19:20:17,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:20:17,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1328808410] [2024-11-08 19:20:17,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:20:17,451 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 19:20:17,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:20:17,453 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:17,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:17,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:17,871 INFO L255 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-08 19:20:17,875 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:20:17,928 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 19:20:19,313 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 119 treesize of output 59 [2024-11-08 19:20:19,795 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:20:19,796 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 195 treesize of output 75 [2024-11-08 19:20:19,869 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 220 proven. 36 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-08 19:20:19,869 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:20:20,153 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 19:20:20,153 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:20:20,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1328808410] [2024-11-08 19:20:20,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1328808410] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:20:20,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:20:20,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13] total 16 [2024-11-08 19:20:20,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642834784] [2024-11-08 19:20:20,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:20:20,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:20:20,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:20:20,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:20:20,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-11-08 19:20:20,155 INFO L87 Difference]: Start difference. First operand 1201 states and 1403 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:20:20,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:20:20,862 INFO L93 Difference]: Finished difference Result 2438 states and 2823 transitions. [2024-11-08 19:20:20,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 19:20:20,863 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 145 [2024-11-08 19:20:20,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:20:20,869 INFO L225 Difference]: With dead ends: 2438 [2024-11-08 19:20:20,869 INFO L226 Difference]: Without dead ends: 1323 [2024-11-08 19:20:20,871 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2024-11-08 19:20:20,872 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 86 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:20:20,872 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 530 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:20:20,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1323 states. [2024-11-08 19:20:21,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1323 to 1036. [2024-11-08 19:20:21,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1036 states, 821 states have (on average 1.1084043848964678) internal successors, (910), 829 states have internal predecessors, (910), 152 states have call successors, (152), 62 states have call predecessors, (152), 62 states have return successors, (152), 144 states have call predecessors, (152), 152 states have call successors, (152) [2024-11-08 19:20:21,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1036 states to 1036 states and 1214 transitions. [2024-11-08 19:20:21,205 INFO L78 Accepts]: Start accepts. Automaton has 1036 states and 1214 transitions. Word has length 145 [2024-11-08 19:20:21,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:20:21,205 INFO L471 AbstractCegarLoop]: Abstraction has 1036 states and 1214 transitions. [2024-11-08 19:20:21,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:20:21,206 INFO L276 IsEmpty]: Start isEmpty. Operand 1036 states and 1214 transitions. [2024-11-08 19:20:21,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-08 19:20:21,207 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:20:21,208 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:20:21,215 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Ended with exit code 0 [2024-11-08 19:20:21,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:21,408 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:20:21,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:20:21,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1464316768, now seen corresponding path program 1 times [2024-11-08 19:20:21,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:20:21,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1999817174] [2024-11-08 19:20:21,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:20:21,409 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 19:20:21,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:20:21,410 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:21,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:21,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:21,836 INFO L255 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-08 19:20:21,840 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:20:21,892 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 19:20:23,322 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 119 treesize of output 59 [2024-11-08 19:20:25,911 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:20:25,912 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 245 treesize of output 101 [2024-11-08 19:20:26,002 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 220 proven. 36 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-08 19:20:26,002 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:20:26,528 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 19:20:26,529 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:20:26,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1999817174] [2024-11-08 19:20:26,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1999817174] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:20:26,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:20:26,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 17 [2024-11-08 19:20:26,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840291551] [2024-11-08 19:20:26,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:20:26,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 19:20:26,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:20:26,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 19:20:26,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2024-11-08 19:20:26,530 INFO L87 Difference]: Start difference. First operand 1036 states and 1214 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:20:27,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:20:27,329 INFO L93 Difference]: Finished difference Result 2325 states and 2700 transitions. [2024-11-08 19:20:27,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 19:20:27,330 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 145 [2024-11-08 19:20:27,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:20:27,334 INFO L225 Difference]: With dead ends: 2325 [2024-11-08 19:20:27,334 INFO L226 Difference]: Without dead ends: 1375 [2024-11-08 19:20:27,336 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 249 SyntacticMatches, 24 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2024-11-08 19:20:27,336 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 108 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 804 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:20:27,337 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 804 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 19:20:27,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1375 states. [2024-11-08 19:20:27,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1375 to 1207. [2024-11-08 19:20:27,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1207 states, 992 states have (on average 1.125) internal successors, (1116), 1000 states have internal predecessors, (1116), 152 states have call successors, (152), 62 states have call predecessors, (152), 62 states have return successors, (152), 144 states have call predecessors, (152), 152 states have call successors, (152) [2024-11-08 19:20:27,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1207 states to 1207 states and 1420 transitions. [2024-11-08 19:20:27,636 INFO L78 Accepts]: Start accepts. Automaton has 1207 states and 1420 transitions. Word has length 145 [2024-11-08 19:20:27,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:20:27,636 INFO L471 AbstractCegarLoop]: Abstraction has 1207 states and 1420 transitions. [2024-11-08 19:20:27,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:20:27,636 INFO L276 IsEmpty]: Start isEmpty. Operand 1207 states and 1420 transitions. [2024-11-08 19:20:27,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-08 19:20:27,638 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:20:27,638 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:20:27,646 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:27,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:27,839 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:20:27,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:20:27,839 INFO L85 PathProgramCache]: Analyzing trace with hash 990748964, now seen corresponding path program 1 times [2024-11-08 19:20:27,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:20:27,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [525663529] [2024-11-08 19:20:27,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:20:27,840 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 19:20:27,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:20:27,841 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:27,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:28,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:28,170 INFO L255 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 19:20:28,172 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:20:28,182 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 19:20:28,235 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 19:20:28,300 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 19:20:28,301 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:20:28,301 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:20:28,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [525663529] [2024-11-08 19:20:28,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [525663529] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:20:28,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:20:28,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 19:20:28,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131706448] [2024-11-08 19:20:28,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:20:28,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 19:20:28,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:20:28,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 19:20:28,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 19:20:28,306 INFO L87 Difference]: Start difference. First operand 1207 states and 1420 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:20:29,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:20:29,160 INFO L93 Difference]: Finished difference Result 2834 states and 3316 transitions. [2024-11-08 19:20:29,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 19:20:29,161 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 145 [2024-11-08 19:20:29,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:20:29,168 INFO L225 Difference]: With dead ends: 2834 [2024-11-08 19:20:29,168 INFO L226 Difference]: Without dead ends: 1713 [2024-11-08 19:20:29,170 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-11-08 19:20:29,171 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 116 mSDsluCounter, 869 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 1029 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:20:29,171 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 1029 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 19:20:29,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1713 states. [2024-11-08 19:20:29,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1713 to 1087. [2024-11-08 19:20:29,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1087 states, 910 states have (on average 1.1318681318681318) internal successors, (1030), 916 states have internal predecessors, (1030), 126 states have call successors, (126), 50 states have call predecessors, (126), 50 states have return successors, (126), 120 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-08 19:20:29,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1087 states to 1087 states and 1282 transitions. [2024-11-08 19:20:29,416 INFO L78 Accepts]: Start accepts. Automaton has 1087 states and 1282 transitions. Word has length 145 [2024-11-08 19:20:29,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:20:29,417 INFO L471 AbstractCegarLoop]: Abstraction has 1087 states and 1282 transitions. [2024-11-08 19:20:29,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:20:29,417 INFO L276 IsEmpty]: Start isEmpty. Operand 1087 states and 1282 transitions. [2024-11-08 19:20:29,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-08 19:20:29,418 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:20:29,418 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:20:29,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:29,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:29,620 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:20:29,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:20:29,620 INFO L85 PathProgramCache]: Analyzing trace with hash 403942950, now seen corresponding path program 1 times [2024-11-08 19:20:29,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:20:29,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1593779690] [2024-11-08 19:20:29,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:20:29,621 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 19:20:29,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:20:29,622 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:29,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:29,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:29,981 INFO L255 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-08 19:20:29,985 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:20:31,668 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 119 treesize of output 59 [2024-11-08 19:20:33,655 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:20:33,656 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 233 treesize of output 101 [2024-11-08 19:20:33,806 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 220 proven. 36 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-08 19:20:33,806 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:20:34,068 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 19:20:34,068 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:20:34,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1593779690] [2024-11-08 19:20:34,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1593779690] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:20:34,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:20:34,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-11-08 19:20:34,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538953434] [2024-11-08 19:20:34,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:20:34,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:20:34,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:20:34,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:20:34,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2024-11-08 19:20:34,070 INFO L87 Difference]: Start difference. First operand 1087 states and 1282 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:20:34,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:20:34,754 INFO L93 Difference]: Finished difference Result 2548 states and 2982 transitions. [2024-11-08 19:20:34,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 19:20:34,755 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 145 [2024-11-08 19:20:34,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:20:34,761 INFO L225 Difference]: With dead ends: 2548 [2024-11-08 19:20:34,762 INFO L226 Difference]: Without dead ends: 1563 [2024-11-08 19:20:34,764 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 258 SyntacticMatches, 17 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2024-11-08 19:20:34,764 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 177 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:20:34,764 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 449 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:20:34,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1563 states. [2024-11-08 19:20:35,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1563 to 1083. [2024-11-08 19:20:35,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 906 states have (on average 1.1280353200883002) internal successors, (1022), 912 states have internal predecessors, (1022), 126 states have call successors, (126), 50 states have call predecessors, (126), 50 states have return successors, (126), 120 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-08 19:20:35,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1274 transitions. [2024-11-08 19:20:35,051 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1274 transitions. Word has length 145 [2024-11-08 19:20:35,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:20:35,052 INFO L471 AbstractCegarLoop]: Abstraction has 1083 states and 1274 transitions. [2024-11-08 19:20:35,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:20:35,052 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1274 transitions. [2024-11-08 19:20:35,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-08 19:20:35,054 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:20:35,054 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:20:35,062 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:35,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:35,255 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:20:35,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:20:35,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1570275411, now seen corresponding path program 1 times [2024-11-08 19:20:35,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:20:35,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [95092374] [2024-11-08 19:20:35,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:20:35,256 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 19:20:35,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:20:35,257 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:35,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:35,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:35,624 INFO L255 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 19:20:35,626 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:20:35,930 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 19:20:35,985 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 19:20:35,986 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:20:35,986 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:20:35,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [95092374] [2024-11-08 19:20:35,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [95092374] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:20:35,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:20:35,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 19:20:35,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844407243] [2024-11-08 19:20:35,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:20:35,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:20:35,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:20:35,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:20:35,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:20:35,988 INFO L87 Difference]: Start difference. First operand 1083 states and 1274 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:20:39,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:20:39,413 INFO L93 Difference]: Finished difference Result 2513 states and 2934 transitions. [2024-11-08 19:20:39,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 19:20:39,415 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 145 [2024-11-08 19:20:39,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:20:39,424 INFO L225 Difference]: With dead ends: 2513 [2024-11-08 19:20:39,424 INFO L226 Difference]: Without dead ends: 1532 [2024-11-08 19:20:39,426 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:20:39,427 INFO L432 NwaCegarLoop]: 233 mSDtfsCounter, 168 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 723 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-08 19:20:39,427 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 723 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-08 19:20:39,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1532 states. [2024-11-08 19:20:39,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1532 to 1063. [2024-11-08 19:20:39,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1063 states, 886 states have (on average 1.1218961625282167) internal successors, (994), 892 states have internal predecessors, (994), 126 states have call successors, (126), 50 states have call predecessors, (126), 50 states have return successors, (126), 120 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-08 19:20:39,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1063 states to 1063 states and 1246 transitions. [2024-11-08 19:20:39,828 INFO L78 Accepts]: Start accepts. Automaton has 1063 states and 1246 transitions. Word has length 145 [2024-11-08 19:20:39,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:20:39,828 INFO L471 AbstractCegarLoop]: Abstraction has 1063 states and 1246 transitions. [2024-11-08 19:20:39,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:20:39,829 INFO L276 IsEmpty]: Start isEmpty. Operand 1063 states and 1246 transitions. [2024-11-08 19:20:39,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-08 19:20:39,830 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:20:39,830 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:20:39,837 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:40,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:40,031 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:20:40,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:20:40,031 INFO L85 PathProgramCache]: Analyzing trace with hash -762716894, now seen corresponding path program 1 times [2024-11-08 19:20:40,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:20:40,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1984283895] [2024-11-08 19:20:40,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:20:40,032 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 19:20:40,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:20:40,034 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:40,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:40,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:40,478 INFO L255 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-08 19:20:40,483 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:20:42,040 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 119 treesize of output 59 [2024-11-08 19:20:42,227 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 220 proven. 36 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-08 19:20:42,227 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:20:42,389 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:20:42,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1984283895] [2024-11-08 19:20:42,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1984283895] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:20:42,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78119969] [2024-11-08 19:20:42,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:20:42,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:20:42,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:20:42,392 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:20:42,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-11-08 19:20:42,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:42,763 INFO L255 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 19:20:42,766 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:20:43,048 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 90 treesize of output 42 [2024-11-08 19:20:43,100 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 19:20:43,101 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:20:43,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [78119969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:20:43,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:20:43,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 16 [2024-11-08 19:20:43,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986696295] [2024-11-08 19:20:43,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:20:43,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:20:43,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:20:43,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:20:43,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2024-11-08 19:20:43,103 INFO L87 Difference]: Start difference. First operand 1063 states and 1246 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:20:44,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:20:44,132 INFO L93 Difference]: Finished difference Result 2465 states and 2874 transitions. [2024-11-08 19:20:44,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 19:20:44,134 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 145 [2024-11-08 19:20:44,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:20:44,140 INFO L225 Difference]: With dead ends: 2465 [2024-11-08 19:20:44,140 INFO L226 Difference]: Without dead ends: 1504 [2024-11-08 19:20:44,142 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=67, Invalid=313, Unknown=0, NotChecked=0, Total=380 [2024-11-08 19:20:44,142 INFO L432 NwaCegarLoop]: 237 mSDtfsCounter, 104 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 963 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 19:20:44,143 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 963 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 19:20:44,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1504 states. [2024-11-08 19:20:44,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1504 to 1063. [2024-11-08 19:20:44,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1063 states, 886 states have (on average 1.1173814898419865) internal successors, (990), 892 states have internal predecessors, (990), 126 states have call successors, (126), 50 states have call predecessors, (126), 50 states have return successors, (126), 120 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-08 19:20:44,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1063 states to 1063 states and 1242 transitions. [2024-11-08 19:20:44,540 INFO L78 Accepts]: Start accepts. Automaton has 1063 states and 1242 transitions. Word has length 145 [2024-11-08 19:20:44,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:20:44,540 INFO L471 AbstractCegarLoop]: Abstraction has 1063 states and 1242 transitions. [2024-11-08 19:20:44,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:20:44,541 INFO L276 IsEmpty]: Start isEmpty. Operand 1063 states and 1242 transitions. [2024-11-08 19:20:44,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-08 19:20:44,542 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:20:44,543 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:20:44,551 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Ended with exit code 0 [2024-11-08 19:20:44,773 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2024-11-08 19:20:44,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:20:44,944 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:20:44,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:20:44,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1349522908, now seen corresponding path program 1 times [2024-11-08 19:20:44,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:20:44,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1243128562] [2024-11-08 19:20:44,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:20:44,945 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 19:20:44,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:20:44,946 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:44,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:45,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:45,351 INFO L255 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-08 19:20:45,355 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:20:46,971 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 119 treesize of output 59 [2024-11-08 19:20:47,128 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:20:47,129 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 213 treesize of output 87 [2024-11-08 19:20:47,184 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 220 proven. 36 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-08 19:20:47,185 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:20:47,292 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:20:47,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1243128562] [2024-11-08 19:20:47,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1243128562] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:20:47,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2129477433] [2024-11-08 19:20:47,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:20:47,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:20:47,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:20:47,294 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:20:47,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-11-08 19:20:47,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:47,624 INFO L255 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-08 19:20:47,628 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:20:48,526 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 90 treesize of output 48 [2024-11-08 19:20:48,615 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:20:48,615 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 184 treesize of output 76 [2024-11-08 19:20:48,634 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2024-11-08 19:20:48,634 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:20:48,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2129477433] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:20:48,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:20:48,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 12 [2024-11-08 19:20:48,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142273493] [2024-11-08 19:20:48,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:20:48,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 19:20:48,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:20:48,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 19:20:48,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-11-08 19:20:48,636 INFO L87 Difference]: Start difference. First operand 1063 states and 1242 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 19:20:49,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:20:49,813 INFO L93 Difference]: Finished difference Result 2671 states and 3094 transitions. [2024-11-08 19:20:49,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 19:20:49,814 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 145 [2024-11-08 19:20:49,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:20:49,822 INFO L225 Difference]: With dead ends: 2671 [2024-11-08 19:20:49,823 INFO L226 Difference]: Without dead ends: 1710 [2024-11-08 19:20:49,825 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2024-11-08 19:20:49,825 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 185 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 19:20:49,826 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 714 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 19:20:49,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1710 states. [2024-11-08 19:20:50,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1710 to 1237. [2024-11-08 19:20:50,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1237 states, 992 states have (on average 1.1068548387096775) internal successors, (1098), 1001 states have internal predecessors, (1098), 179 states have call successors, (179), 65 states have call predecessors, (179), 65 states have return successors, (179), 170 states have call predecessors, (179), 179 states have call successors, (179) [2024-11-08 19:20:50,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1237 states to 1237 states and 1456 transitions. [2024-11-08 19:20:50,312 INFO L78 Accepts]: Start accepts. Automaton has 1237 states and 1456 transitions. Word has length 145 [2024-11-08 19:20:50,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:20:50,312 INFO L471 AbstractCegarLoop]: Abstraction has 1237 states and 1456 transitions. [2024-11-08 19:20:50,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 19:20:50,312 INFO L276 IsEmpty]: Start isEmpty. Operand 1237 states and 1456 transitions. [2024-11-08 19:20:50,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-08 19:20:50,313 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:20:50,314 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:20:50,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:50,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2024-11-08 19:20:50,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:20:50,714 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:20:50,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:20:50,715 INFO L85 PathProgramCache]: Analyzing trace with hash 377622054, now seen corresponding path program 1 times [2024-11-08 19:20:50,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:20:50,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1123862115] [2024-11-08 19:20:50,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:20:50,715 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 19:20:50,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:20:50,719 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:50,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:51,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:51,070 INFO L255 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 19:20:51,072 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:20:51,103 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 252 proven. 0 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2024-11-08 19:20:51,103 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:20:51,104 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:20:51,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1123862115] [2024-11-08 19:20:51,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1123862115] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:20:51,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:20:51,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 19:20:51,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137451173] [2024-11-08 19:20:51,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:20:51,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:20:51,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:20:51,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:20:51,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:20:51,106 INFO L87 Difference]: Start difference. First operand 1237 states and 1456 transitions. Second operand has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-08 19:20:51,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:20:51,683 INFO L93 Difference]: Finished difference Result 2048 states and 2382 transitions. [2024-11-08 19:20:51,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 19:20:51,684 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 145 [2024-11-08 19:20:51,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:20:51,689 INFO L225 Difference]: With dead ends: 2048 [2024-11-08 19:20:51,689 INFO L226 Difference]: Without dead ends: 885 [2024-11-08 19:20:51,691 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 140 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 19:20:51,692 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 1 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:20:51,692 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 507 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:20:51,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 885 states. [2024-11-08 19:20:52,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 885 to 873. [2024-11-08 19:20:52,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 696 states have (on average 1.0876436781609196) internal successors, (757), 702 states have internal predecessors, (757), 126 states have call successors, (126), 50 states have call predecessors, (126), 50 states have return successors, (126), 120 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-08 19:20:52,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1009 transitions. [2024-11-08 19:20:52,133 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1009 transitions. Word has length 145 [2024-11-08 19:20:52,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:20:52,134 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1009 transitions. [2024-11-08 19:20:52,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-08 19:20:52,134 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1009 transitions. [2024-11-08 19:20:52,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-08 19:20:52,136 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:20:52,136 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:20:52,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Ended with exit code 0 [2024-11-08 19:20:52,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:52,337 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:20:52,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:20:52,338 INFO L85 PathProgramCache]: Analyzing trace with hash -450531080, now seen corresponding path program 1 times [2024-11-08 19:20:52,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:20:52,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [320754465] [2024-11-08 19:20:52,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:20:52,339 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 19:20:52,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:20:52,345 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:52,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:52,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:52,812 INFO L255 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-08 19:20:52,814 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:20:53,037 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 19:20:53,177 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 26 [2024-11-08 19:20:53,276 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 33 treesize of output 21 [2024-11-08 19:20:53,280 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 38 treesize of output 20 [2024-11-08 19:20:53,762 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 282 proven. 27 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-08 19:20:53,762 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:20:54,120 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 19:20:54,120 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:20:54,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [320754465] [2024-11-08 19:20:54,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [320754465] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:20:54,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:20:54,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-08 19:20:54,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372353181] [2024-11-08 19:20:54,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:20:54,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:20:54,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:20:54,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:20:54,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-08 19:20:54,122 INFO L87 Difference]: Start difference. First operand 873 states and 1009 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:20:54,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:20:54,826 INFO L93 Difference]: Finished difference Result 2084 states and 2356 transitions. [2024-11-08 19:20:54,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:20:54,827 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 147 [2024-11-08 19:20:54,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:20:54,831 INFO L225 Difference]: With dead ends: 2084 [2024-11-08 19:20:54,831 INFO L226 Difference]: Without dead ends: 1313 [2024-11-08 19:20:54,832 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-08 19:20:54,833 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 100 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:20:54,833 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 383 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:20:54,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1313 states. [2024-11-08 19:20:55,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1313 to 1305. [2024-11-08 19:20:55,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1305 states, 1054 states have (on average 1.069259962049336) internal successors, (1127), 1068 states have internal predecessors, (1127), 166 states have call successors, (166), 84 states have call predecessors, (166), 84 states have return successors, (166), 152 states have call predecessors, (166), 166 states have call successors, (166) [2024-11-08 19:20:55,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1305 states to 1305 states and 1459 transitions. [2024-11-08 19:20:55,259 INFO L78 Accepts]: Start accepts. Automaton has 1305 states and 1459 transitions. Word has length 147 [2024-11-08 19:20:55,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:20:55,260 INFO L471 AbstractCegarLoop]: Abstraction has 1305 states and 1459 transitions. [2024-11-08 19:20:55,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:20:55,260 INFO L276 IsEmpty]: Start isEmpty. Operand 1305 states and 1459 transitions. [2024-11-08 19:20:55,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-08 19:20:55,261 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:20:55,261 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:20:55,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:55,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:55,462 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:20:55,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:20:55,462 INFO L85 PathProgramCache]: Analyzing trace with hash -864603598, now seen corresponding path program 1 times [2024-11-08 19:20:55,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:20:55,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [578953676] [2024-11-08 19:20:55,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:20:55,463 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 19:20:55,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:20:55,464 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:55,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:55,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:55,862 INFO L255 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 19:20:55,863 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:20:55,894 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 19:20:55,895 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:20:55,895 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:20:55,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [578953676] [2024-11-08 19:20:55,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [578953676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:20:55,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:20:55,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:20:55,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902720732] [2024-11-08 19:20:55,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:20:55,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:20:55,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:20:55,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:20:55,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:20:55,897 INFO L87 Difference]: Start difference. First operand 1305 states and 1459 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:20:56,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:20:56,407 INFO L93 Difference]: Finished difference Result 2201 states and 2451 transitions. [2024-11-08 19:20:56,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:20:56,408 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 148 [2024-11-08 19:20:56,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:20:56,411 INFO L225 Difference]: With dead ends: 2201 [2024-11-08 19:20:56,411 INFO L226 Difference]: Without dead ends: 0 [2024-11-08 19:20:56,413 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 144 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 19:20:56,414 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 1 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:20:56,414 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 439 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:20:56,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-08 19:20:56,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-08 19:20:56,415 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 19:20:56,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-08 19:20:56,417 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 148 [2024-11-08 19:20:56,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:20:56,417 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 19:20:56,417 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:20:56,418 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-08 19:20:56,418 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 19:20:56,420 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 19:20:56,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:56,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a747fe3c-b0aa-43f1-a081-b5e03c7e7b5e/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:56,624 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] [2024-11-08 19:20:56,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-08 19:21:11,996 WARN L286 SmtUtils]: Spent 15.36s on a formula simplification. DAG size of input: 261 DAG size of output: 304 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-08 19:21:30,583 WARN L286 SmtUtils]: Spent 18.59s on a formula simplification. DAG size of input: 319 DAG size of output: 384 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-08 19:21:36,476 WARN L286 SmtUtils]: Spent 5.89s on a formula simplification. DAG size of input: 185 DAG size of output: 204 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-08 19:21:47,308 WARN L286 SmtUtils]: Spent 6.01s on a formula simplification. DAG size of input: 205 DAG size of output: 224 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-08 19:25:47,091 WARN L286 SmtUtils]: Spent 3.94m on a formula simplification. DAG size of input: 216 DAG size of output: 260 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-08 19:26:03,517 WARN L286 SmtUtils]: Spent 13.64s on a formula simplification. DAG size of input: 247 DAG size of output: 244 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-08 19:26:19,382 WARN L286 SmtUtils]: Spent 6.88s on a formula simplification. DAG size of input: 218 DAG size of output: 237 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-08 19:27:10,998 WARN L286 SmtUtils]: Spent 51.56s on a formula simplification. DAG size of input: 249 DAG size of output: 290 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-08 19:27:31,760 WARN L286 SmtUtils]: Spent 6.74s on a formula simplification. DAG size of input: 200 DAG size of output: 219 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-08 19:30:50,469 WARN L286 SmtUtils]: Spent 3.13m on a formula simplification. DAG size of input: 226 DAG size of output: 223 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-08 19:31:03,841 WARN L286 SmtUtils]: Spent 6.14s on a formula simplification. DAG size of input: 224 DAG size of output: 243 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or)