./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/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_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/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_6cde399a-0db1-4473-97bb-12de628339ad/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 6c2afc665f9ec9bbf6f489827c9a63486fda067f850cc8b511cbd83d8b773bd8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:33:46,494 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:33:46,577 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 18:33:46,581 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:33:46,582 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:33:46,629 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:33:46,629 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:33:46,630 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:33:46,631 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:33:46,632 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:33:46,633 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:33:46,633 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:33:46,634 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:33:46,634 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:33:46,636 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:33:46,636 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:33:46,637 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:33:46,637 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:33:46,637 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:33:46,638 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:33:46,638 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:33:46,639 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:33:46,639 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:33:46,639 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:33:46,640 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:33:46,640 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:33:46,640 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:33:46,641 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:33:46,641 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:33:46,641 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:33:46,651 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:33:46,651 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:33:46,651 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:33:46,652 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:33:46,652 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:33:46,652 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:33:46,652 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:33:46,653 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:33:46,653 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:33:46,653 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:33:46,654 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:33:46,655 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:33:46,655 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_6cde399a-0db1-4473-97bb-12de628339ad/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c2afc665f9ec9bbf6f489827c9a63486fda067f850cc8b511cbd83d8b773bd8 [2024-11-08 18:33:46,978 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:33:47,009 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:33:47,011 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:33:47,013 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:33:47,013 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:33:47,014 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-2.i Unable to find full path for "g++" [2024-11-08 18:33:48,949 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:33:49,228 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:33:49,232 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-2.i [2024-11-08 18:33:49,244 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/data/327b72a92/268f106eb6b149b5bb9a897a5bd9d582/FLAGb04953ccf [2024-11-08 18:33:49,262 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/data/327b72a92/268f106eb6b149b5bb9a897a5bd9d582 [2024-11-08 18:33:49,264 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:33:49,267 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:33:49,269 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:33:49,269 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:33:49,288 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:33:49,288 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:33:49" (1/1) ... [2024-11-08 18:33:49,289 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2940e227 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:33:49, skipping insertion in model container [2024-11-08 18:33:49,291 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:33:49" (1/1) ... [2024-11-08 18:33:49,325 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:33:49,512 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_6cde399a-0db1-4473-97bb-12de628339ad/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-2.i[915,928] [2024-11-08 18:33:49,592 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:33:49,603 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:33:49,616 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_6cde399a-0db1-4473-97bb-12de628339ad/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-2.i[915,928] [2024-11-08 18:33:49,666 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:33:49,688 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:33:49,689 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:33:49 WrapperNode [2024-11-08 18:33:49,689 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:33:49,690 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:33:49,690 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:33:49,691 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:33:49,699 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:33:49" (1/1) ... [2024-11-08 18:33:49,714 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:33:49" (1/1) ... [2024-11-08 18:33:49,773 INFO L138 Inliner]: procedures = 29, calls = 157, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 513 [2024-11-08 18:33:49,774 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:33:49,778 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:33:49,778 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:33:49,779 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:33:49,791 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:33:49" (1/1) ... [2024-11-08 18:33:49,791 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:33:49" (1/1) ... [2024-11-08 18:33:49,800 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:33:49" (1/1) ... [2024-11-08 18:33:49,829 INFO L175 MemorySlicer]: Split 131 memory accesses to 4 slices as follows [2, 8, 31, 90]. 69 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 1, 3, 6]. The 15 writes are split as follows [0, 1, 5, 9]. [2024-11-08 18:33:49,829 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:33:49" (1/1) ... [2024-11-08 18:33:49,830 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:33:49" (1/1) ... [2024-11-08 18:33:49,853 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:33:49" (1/1) ... [2024-11-08 18:33:49,866 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:33:49" (1/1) ... [2024-11-08 18:33:49,874 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:33:49" (1/1) ... [2024-11-08 18:33:49,880 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:33:49" (1/1) ... [2024-11-08 18:33:49,894 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:33:49,895 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:33:49,896 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:33:49,896 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:33:49,900 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:33:49" (1/1) ... [2024-11-08 18:33:49,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:33:49,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:33:49,963 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:33:50,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:33:50,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:33:50,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-08 18:33:50,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-08 18:33:50,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-08 18:33:50,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-08 18:33:50,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 18:33:50,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 18:33:50,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 18:33:50,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-08 18:33:50,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-08 18:33:50,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-08 18:33:50,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-08 18:33:50,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-08 18:33:50,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 18:33:50,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 18:33:50,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 18:33:50,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-08 18:33:50,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-08 18:33:50,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-08 18:33:50,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-08 18:33:50,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-08 18:33:50,048 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 18:33:50,048 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 18:33:50,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:33:50,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 18:33:50,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 18:33:50,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 18:33:50,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:33:50,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:33:50,216 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:33:50,218 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:33:50,816 INFO L? ?]: Removed 147 outVars from TransFormulas that were not future-live. [2024-11-08 18:33:50,817 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:33:50,834 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:33:50,834 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 18:33:50,834 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:33:50 BoogieIcfgContainer [2024-11-08 18:33:50,835 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:33:50,837 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:33:50,838 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:33:50,846 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:33:50,846 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:33:49" (1/3) ... [2024-11-08 18:33:50,847 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3749996c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:33:50, skipping insertion in model container [2024-11-08 18:33:50,847 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:33:49" (2/3) ... [2024-11-08 18:33:50,847 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3749996c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:33:50, skipping insertion in model container [2024-11-08 18:33:50,848 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:33:50" (3/3) ... [2024-11-08 18:33:50,849 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-2.i [2024-11-08 18:33:50,863 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:33:50,863 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 18:33:50,928 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:33:50,933 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;@77146efc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:33:50,933 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 18:33:50,937 INFO L276 IsEmpty]: Start isEmpty. Operand has 104 states, 89 states have (on average 1.4606741573033708) internal successors, (130), 90 states have internal predecessors, (130), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-08 18:33:50,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-08 18:33:50,949 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:33:50,950 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:33:50,950 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:33:50,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:33:50,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1658724944, now seen corresponding path program 1 times [2024-11-08 18:33:50,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:33:50,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938058048] [2024-11-08 18:33:50,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:33:50,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:33:51,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:51,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:33:51,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:51,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:33:51,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:51,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:33:51,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:51,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 18:33:51,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:51,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 18:33:51,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:51,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 18:33:51,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:51,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 18:33:51,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:51,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 18:33:51,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:51,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 18:33:51,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:51,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 18:33:51,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:51,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:33:51,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:51,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 18:33:51,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:51,340 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:33:51,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:33:51,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938058048] [2024-11-08 18:33:51,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938058048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:33:51,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:33:51,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:33:51,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041193709] [2024-11-08 18:33:51,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:33:51,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 18:33:51,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:33:51,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 18:33:51,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 18:33:51,421 INFO L87 Difference]: Start difference. First operand has 104 states, 89 states have (on average 1.4606741573033708) internal successors, (130), 90 states have internal predecessors, (130), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 18:33:51,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:33:51,461 INFO L93 Difference]: Finished difference Result 201 states and 314 transitions. [2024-11-08 18:33:51,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 18:33:51,463 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 100 [2024-11-08 18:33:51,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:33:51,473 INFO L225 Difference]: With dead ends: 201 [2024-11-08 18:33:51,474 INFO L226 Difference]: Without dead ends: 100 [2024-11-08 18:33:51,478 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 38 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 18:33:51,485 INFO L432 NwaCegarLoop]: 147 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, 147 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 18:33:51,486 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:33:51,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-08 18:33:51,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2024-11-08 18:33:51,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 86 states have (on average 1.430232558139535) internal successors, (123), 86 states have internal predecessors, (123), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-08 18:33:51,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 147 transitions. [2024-11-08 18:33:51,548 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 147 transitions. Word has length 100 [2024-11-08 18:33:51,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:33:51,552 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 147 transitions. [2024-11-08 18:33:51,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 18:33:51,553 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 147 transitions. [2024-11-08 18:33:51,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-08 18:33:51,559 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:33:51,559 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:33:51,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:33:51,560 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:33:51,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:33:51,560 INFO L85 PathProgramCache]: Analyzing trace with hash 671944228, now seen corresponding path program 1 times [2024-11-08 18:33:51,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:33:51,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177069021] [2024-11-08 18:33:51,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:33:51,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:33:51,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:51,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:33:51,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:51,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:33:51,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:51,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:33:51,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:51,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 18:33:51,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:51,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 18:33:51,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:51,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 18:33:51,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:51,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 18:33:51,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:51,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 18:33:51,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:51,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 18:33:51,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:51,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 18:33:51,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:51,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:33:51,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:51,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 18:33:51,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:51,923 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:33:51,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:33:51,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177069021] [2024-11-08 18:33:51,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177069021] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:33:51,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:33:51,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:33:51,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745025067] [2024-11-08 18:33:51,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:33:51,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:33:51,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:33:51,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:33:51,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:33:51,936 INFO L87 Difference]: Start difference. First operand 100 states and 147 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:33:51,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:33:51,975 INFO L93 Difference]: Finished difference Result 198 states and 293 transitions. [2024-11-08 18:33:51,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:33:51,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 100 [2024-11-08 18:33:51,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:33:51,977 INFO L225 Difference]: With dead ends: 198 [2024-11-08 18:33:51,978 INFO L226 Difference]: Without dead ends: 101 [2024-11-08 18:33:51,978 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:33:51,979 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 0 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:33:51,980 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 286 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:33:51,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-08 18:33:51,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-11-08 18:33:51,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 87 states have (on average 1.4252873563218391) internal successors, (124), 87 states have internal predecessors, (124), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-08 18:33:51,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 148 transitions. [2024-11-08 18:33:51,992 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 148 transitions. Word has length 100 [2024-11-08 18:33:51,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:33:51,999 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 148 transitions. [2024-11-08 18:33:51,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:33:51,999 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 148 transitions. [2024-11-08 18:33:52,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-08 18:33:52,003 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:33:52,003 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:33:52,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 18:33:52,004 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:33:52,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:33:52,004 INFO L85 PathProgramCache]: Analyzing trace with hash -339173022, now seen corresponding path program 1 times [2024-11-08 18:33:52,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:33:52,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829839441] [2024-11-08 18:33:52,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:33:52,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:33:52,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:52,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:33:52,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:52,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:33:52,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:52,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:33:52,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:52,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 18:33:52,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:52,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 18:33:52,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:52,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 18:33:52,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:52,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 18:33:52,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:52,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 18:33:52,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:52,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 18:33:52,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:52,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 18:33:52,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:52,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:33:52,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:52,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 18:33:52,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:52,476 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:33:52,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:33:52,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829839441] [2024-11-08 18:33:52,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829839441] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:33:52,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:33:52,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:33:52,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112638628] [2024-11-08 18:33:52,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:33:52,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:33:52,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:33:52,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:33:52,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:33:52,481 INFO L87 Difference]: Start difference. First operand 101 states and 148 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:33:52,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:33:52,539 INFO L93 Difference]: Finished difference Result 201 states and 296 transitions. [2024-11-08 18:33:52,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:33:52,540 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 100 [2024-11-08 18:33:52,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:33:52,541 INFO L225 Difference]: With dead ends: 201 [2024-11-08 18:33:52,542 INFO L226 Difference]: Without dead ends: 103 [2024-11-08 18:33:52,542 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 27 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 18:33:52,544 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 0 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 424 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 18:33:52,544 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 424 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:33:52,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-11-08 18:33:52,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2024-11-08 18:33:52,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 89 states have (on average 1.4157303370786516) internal successors, (126), 89 states have internal predecessors, (126), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-08 18:33:52,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 150 transitions. [2024-11-08 18:33:52,554 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 150 transitions. Word has length 100 [2024-11-08 18:33:52,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:33:52,555 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 150 transitions. [2024-11-08 18:33:52,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:33:52,555 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 150 transitions. [2024-11-08 18:33:52,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-08 18:33:52,557 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:33:52,557 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:33:52,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 18:33:52,557 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:33:52,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:33:52,558 INFO L85 PathProgramCache]: Analyzing trace with hash 619177501, now seen corresponding path program 1 times [2024-11-08 18:33:52,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:33:52,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032396078] [2024-11-08 18:33:52,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:33:52,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:33:52,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:52,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:33:52,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:52,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:33:52,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:52,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:33:52,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:52,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 18:33:52,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:52,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 18:33:52,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:52,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 18:33:52,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:52,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 18:33:52,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:52,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 18:33:52,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:52,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 18:33:52,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:52,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 18:33:52,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:52,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:33:52,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:52,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 18:33:52,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:52,860 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:33:52,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:33:52,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032396078] [2024-11-08 18:33:52,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032396078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:33:52,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:33:52,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:33:52,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654645497] [2024-11-08 18:33:52,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:33:52,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:33:52,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:33:52,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:33:52,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:33:52,863 INFO L87 Difference]: Start difference. First operand 103 states and 150 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:33:52,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:33:52,945 INFO L93 Difference]: Finished difference Result 248 states and 364 transitions. [2024-11-08 18:33:52,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:33:52,946 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 103 [2024-11-08 18:33:52,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:33:52,949 INFO L225 Difference]: With dead ends: 248 [2024-11-08 18:33:52,949 INFO L226 Difference]: Without dead ends: 148 [2024-11-08 18:33:52,950 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:33:52,951 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 60 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:33:52,952 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 288 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:33:52,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-11-08 18:33:52,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 121. [2024-11-08 18:33:52,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 107 states have (on average 1.439252336448598) internal successors, (154), 107 states have internal predecessors, (154), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-08 18:33:52,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 178 transitions. [2024-11-08 18:33:52,970 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 178 transitions. Word has length 103 [2024-11-08 18:33:52,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:33:52,971 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 178 transitions. [2024-11-08 18:33:52,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:33:52,971 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 178 transitions. [2024-11-08 18:33:52,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-08 18:33:52,976 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:33:52,977 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:33:52,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 18:33:52,977 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:33:52,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:33:52,977 INFO L85 PathProgramCache]: Analyzing trace with hash 221316002, now seen corresponding path program 1 times [2024-11-08 18:33:52,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:33:52,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089321605] [2024-11-08 18:33:52,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:33:52,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:33:53,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:53,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:33:53,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:53,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:33:53,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:53,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:33:53,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:53,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 18:33:53,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:53,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 18:33:53,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:53,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 18:33:53,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:53,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 18:33:53,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:53,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 18:33:53,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:53,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 18:33:53,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:53,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 18:33:53,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:53,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:33:53,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:53,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 18:33:53,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:53,132 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:33:53,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:33:53,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089321605] [2024-11-08 18:33:53,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089321605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:33:53,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:33:53,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:33:53,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012307921] [2024-11-08 18:33:53,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:33:53,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:33:53,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:33:53,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:33:53,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:33:53,138 INFO L87 Difference]: Start difference. First operand 121 states and 178 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:33:53,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:33:53,164 INFO L93 Difference]: Finished difference Result 240 states and 355 transitions. [2024-11-08 18:33:53,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:33:53,165 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 103 [2024-11-08 18:33:53,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:33:53,167 INFO L225 Difference]: With dead ends: 240 [2024-11-08 18:33:53,167 INFO L226 Difference]: Without dead ends: 122 [2024-11-08 18:33:53,168 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:33:53,173 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 0 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:33:53,173 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 285 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:33:53,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-08 18:33:53,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2024-11-08 18:33:53,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 108 states have (on average 1.4351851851851851) internal successors, (155), 108 states have internal predecessors, (155), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-08 18:33:53,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 179 transitions. [2024-11-08 18:33:53,185 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 179 transitions. Word has length 103 [2024-11-08 18:33:53,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:33:53,185 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 179 transitions. [2024-11-08 18:33:53,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:33:53,186 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 179 transitions. [2024-11-08 18:33:53,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-08 18:33:53,187 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:33:53,187 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:33:53,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 18:33:53,188 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:33:53,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:33:53,188 INFO L85 PathProgramCache]: Analyzing trace with hash 901374372, now seen corresponding path program 1 times [2024-11-08 18:33:53,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:33:53,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309266561] [2024-11-08 18:33:53,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:33:53,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:33:53,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:54,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:33:54,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:54,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:33:54,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:54,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:33:54,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:54,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 18:33:54,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:54,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 18:33:54,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:54,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 18:33:54,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:54,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 18:33:54,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:54,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 18:33:54,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:54,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 18:33:54,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:54,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 18:33:54,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:54,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:33:54,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:54,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 18:33:54,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:54,512 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:33:54,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:33:54,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309266561] [2024-11-08 18:33:54,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309266561] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:33:54,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:33:54,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 18:33:54,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30052123] [2024-11-08 18:33:54,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:33:54,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:33:54,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:33:54,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:33:54,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:33:54,516 INFO L87 Difference]: Start difference. First operand 122 states and 179 transitions. Second operand has 10 states, 9 states have (on average 5.111111111111111) internal successors, (46), 10 states have internal predecessors, (46), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 18:33:55,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:33:55,018 INFO L93 Difference]: Finished difference Result 326 states and 476 transitions. [2024-11-08 18:33:55,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:33:55,019 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.111111111111111) internal successors, (46), 10 states have internal predecessors, (46), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 103 [2024-11-08 18:33:55,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:33:55,021 INFO L225 Difference]: With dead ends: 326 [2024-11-08 18:33:55,021 INFO L226 Difference]: Without dead ends: 207 [2024-11-08 18:33:55,022 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:33:55,023 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 97 mSDsluCounter, 1117 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 1279 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:33:55,023 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 1279 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:33:55,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2024-11-08 18:33:55,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 204. [2024-11-08 18:33:55,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 181 states have (on average 1.419889502762431) internal successors, (257), 182 states have internal predecessors, (257), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-08 18:33:55,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 297 transitions. [2024-11-08 18:33:55,037 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 297 transitions. Word has length 103 [2024-11-08 18:33:55,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:33:55,037 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 297 transitions. [2024-11-08 18:33:55,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.111111111111111) internal successors, (46), 10 states have internal predecessors, (46), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 18:33:55,037 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 297 transitions. [2024-11-08 18:33:55,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-08 18:33:55,039 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:33:55,039 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:33:55,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 18:33:55,040 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:33:55,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:33:55,040 INFO L85 PathProgramCache]: Analyzing trace with hash -477830865, now seen corresponding path program 1 times [2024-11-08 18:33:55,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:33:55,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530299276] [2024-11-08 18:33:55,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:33:55,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:33:55,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 18:33:55,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [724525523] [2024-11-08 18:33:55,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:33:55,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:33:55,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:33:55,126 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:33:55,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:33:55,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:55,658 INFO L255 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 18:33:55,669 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:33:56,172 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:33:56,175 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:33:56,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:33:56,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530299276] [2024-11-08 18:33:56,176 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 18:33:56,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724525523] [2024-11-08 18:33:56,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724525523] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:33:56,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:33:56,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:33:56,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404719893] [2024-11-08 18:33:56,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:33:56,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:33:56,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:33:56,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:33:56,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:33:56,178 INFO L87 Difference]: Start difference. First operand 204 states and 297 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:33:56,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:33:56,435 INFO L93 Difference]: Finished difference Result 548 states and 801 transitions. [2024-11-08 18:33:56,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:33:56,436 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 105 [2024-11-08 18:33:56,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:33:56,439 INFO L225 Difference]: With dead ends: 548 [2024-11-08 18:33:56,439 INFO L226 Difference]: Without dead ends: 347 [2024-11-08 18:33:56,440 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:33:56,441 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 134 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:33:56,441 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 366 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:33:56,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2024-11-08 18:33:56,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 276. [2024-11-08 18:33:56,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 240 states have (on average 1.4083333333333334) internal successors, (338), 241 states have internal predecessors, (338), 32 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-08 18:33:56,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 402 transitions. [2024-11-08 18:33:56,464 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 402 transitions. Word has length 105 [2024-11-08 18:33:56,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:33:56,464 INFO L471 AbstractCegarLoop]: Abstraction has 276 states and 402 transitions. [2024-11-08 18:33:56,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:33:56,465 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 402 transitions. [2024-11-08 18:33:56,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-08 18:33:56,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:33:56,466 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:33:56,487 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 18:33:56,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:33:56,667 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:33:56,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:33:56,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1311623562, now seen corresponding path program 1 times [2024-11-08 18:33:56,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:33:56,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606759542] [2024-11-08 18:33:56,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:33:56,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:33:56,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:57,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:33:57,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:57,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:33:57,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:57,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:33:57,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:57,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 18:33:57,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:57,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 18:33:57,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:57,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 18:33:57,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:57,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 18:33:57,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:57,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 18:33:57,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:57,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 18:33:57,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:57,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 18:33:57,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:57,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:33:57,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:57,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 18:33:57,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:57,667 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:33:57,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:33:57,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606759542] [2024-11-08 18:33:57,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606759542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:33:57,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:33:57,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:33:57,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812743273] [2024-11-08 18:33:57,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:33:57,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:33:57,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:33:57,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:33:57,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:33:57,670 INFO L87 Difference]: Start difference. First operand 276 states and 402 transitions. Second operand has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 18:33:58,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:33:58,113 INFO L93 Difference]: Finished difference Result 610 states and 880 transitions. [2024-11-08 18:33:58,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:33:58,114 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 106 [2024-11-08 18:33:58,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:33:58,116 INFO L225 Difference]: With dead ends: 610 [2024-11-08 18:33:58,116 INFO L226 Difference]: Without dead ends: 409 [2024-11-08 18:33:58,118 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:33:58,120 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 81 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:33:58,122 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 644 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:33:58,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2024-11-08 18:33:58,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 405. [2024-11-08 18:33:58,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 359 states have (on average 1.3955431754874652) internal successors, (501), 362 states have internal predecessors, (501), 40 states have call successors, (40), 5 states have call predecessors, (40), 5 states have return successors, (40), 37 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-08 18:33:58,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 581 transitions. [2024-11-08 18:33:58,168 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 581 transitions. Word has length 106 [2024-11-08 18:33:58,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:33:58,169 INFO L471 AbstractCegarLoop]: Abstraction has 405 states and 581 transitions. [2024-11-08 18:33:58,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 18:33:58,170 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 581 transitions. [2024-11-08 18:33:58,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-08 18:33:58,171 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:33:58,171 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:33:58,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 18:33:58,171 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:33:58,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:33:58,172 INFO L85 PathProgramCache]: Analyzing trace with hash -610558984, now seen corresponding path program 1 times [2024-11-08 18:33:58,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:33:58,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121618533] [2024-11-08 18:33:58,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:33:58,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:33:58,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:59,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:33:59,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:59,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:33:59,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:59,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:33:59,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:59,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 18:33:59,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:59,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 18:33:59,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:59,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 18:33:59,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:59,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 18:33:59,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:59,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 18:33:59,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:59,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 18:33:59,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:59,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 18:33:59,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:59,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:33:59,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:59,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 18:33:59,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:59,222 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:33:59,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:33:59,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121618533] [2024-11-08 18:33:59,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121618533] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:33:59,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:33:59,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:33:59,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378849619] [2024-11-08 18:33:59,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:33:59,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:33:59,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:33:59,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:33:59,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:33:59,226 INFO L87 Difference]: Start difference. First operand 405 states and 581 transitions. Second operand has 9 states, 8 states have (on average 6.125) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 18:34:00,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:34:00,044 INFO L93 Difference]: Finished difference Result 1060 states and 1520 transitions. [2024-11-08 18:34:00,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 18:34:00,045 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 106 [2024-11-08 18:34:00,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:34:00,050 INFO L225 Difference]: With dead ends: 1060 [2024-11-08 18:34:00,051 INFO L226 Difference]: Without dead ends: 734 [2024-11-08 18:34:00,052 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:34:00,053 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 118 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:34:00,053 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 1062 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 18:34:00,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2024-11-08 18:34:00,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 723. [2024-11-08 18:34:00,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 723 states, 647 states have (on average 1.3987635239567233) internal successors, (905), 654 states have internal predecessors, (905), 66 states have call successors, (66), 9 states have call predecessors, (66), 9 states have return successors, (66), 59 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-08 18:34:00,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 1037 transitions. [2024-11-08 18:34:00,112 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 1037 transitions. Word has length 106 [2024-11-08 18:34:00,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:34:00,112 INFO L471 AbstractCegarLoop]: Abstraction has 723 states and 1037 transitions. [2024-11-08 18:34:00,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 18:34:00,113 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 1037 transitions. [2024-11-08 18:34:00,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-08 18:34:00,114 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:34:00,114 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:34:00,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 18:34:00,115 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:34:00,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:00,115 INFO L85 PathProgramCache]: Analyzing trace with hash -372608046, now seen corresponding path program 1 times [2024-11-08 18:34:00,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:34:00,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747692513] [2024-11-08 18:34:00,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:00,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:34:00,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:01,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:34:01,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:01,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:34:01,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:01,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:34:01,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:01,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 18:34:01,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:01,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 18:34:01,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:01,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 18:34:01,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:01,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 18:34:01,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:01,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 18:34:01,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:01,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 18:34:01,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:01,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 18:34:01,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:01,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:34:01,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:01,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 18:34:01,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:01,169 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:34:01,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:34:01,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747692513] [2024-11-08 18:34:01,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747692513] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:34:01,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:34:01,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:34:01,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070410031] [2024-11-08 18:34:01,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:34:01,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:34:01,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:34:01,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:34:01,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:34:01,173 INFO L87 Difference]: Start difference. First operand 723 states and 1037 transitions. Second operand has 7 states, 6 states have (on average 8.5) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 18:34:01,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:34:01,625 INFO L93 Difference]: Finished difference Result 1343 states and 1924 transitions. [2024-11-08 18:34:01,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:34:01,626 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 108 [2024-11-08 18:34:01,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:34:01,631 INFO L225 Difference]: With dead ends: 1343 [2024-11-08 18:34:01,631 INFO L226 Difference]: Without dead ends: 729 [2024-11-08 18:34:01,632 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:34:01,633 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 78 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:34:01,634 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 699 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:34:01,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2024-11-08 18:34:01,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 723. [2024-11-08 18:34:01,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 723 states, 647 states have (on average 1.39258114374034) internal successors, (901), 654 states have internal predecessors, (901), 66 states have call successors, (66), 9 states have call predecessors, (66), 9 states have return successors, (66), 59 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-08 18:34:01,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 1033 transitions. [2024-11-08 18:34:01,689 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 1033 transitions. Word has length 108 [2024-11-08 18:34:01,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:34:01,689 INFO L471 AbstractCegarLoop]: Abstraction has 723 states and 1033 transitions. [2024-11-08 18:34:01,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 18:34:01,690 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 1033 transitions. [2024-11-08 18:34:01,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-08 18:34:01,693 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:34:01,693 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:34:01,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 18:34:01,694 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:34:01,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:01,694 INFO L85 PathProgramCache]: Analyzing trace with hash 328456532, now seen corresponding path program 1 times [2024-11-08 18:34:01,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:34:01,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578107188] [2024-11-08 18:34:01,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:01,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:34:01,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:03,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:34:03,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:03,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:34:03,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:03,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:34:03,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:03,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 18:34:03,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:03,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 18:34:03,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:03,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 18:34:03,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:03,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 18:34:03,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:03,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 18:34:03,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:03,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 18:34:03,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:03,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 18:34:03,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:03,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:34:03,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:03,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 18:34:03,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:03,191 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:34:03,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:34:03,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578107188] [2024-11-08 18:34:03,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578107188] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:34:03,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:34:03,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:34:03,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618440304] [2024-11-08 18:34:03,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:34:03,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:34:03,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:34:03,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:34:03,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:34:03,193 INFO L87 Difference]: Start difference. First operand 723 states and 1033 transitions. Second operand has 9 states, 7 states have (on average 7.285714285714286) internal successors, (51), 9 states have internal predecessors, (51), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-08 18:34:03,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:34:03,794 INFO L93 Difference]: Finished difference Result 1637 states and 2337 transitions. [2024-11-08 18:34:03,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:34:03,795 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 7.285714285714286) internal successors, (51), 9 states have internal predecessors, (51), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 3 states have call successors, (12) Word has length 108 [2024-11-08 18:34:03,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:34:03,801 INFO L225 Difference]: With dead ends: 1637 [2024-11-08 18:34:03,801 INFO L226 Difference]: Without dead ends: 1023 [2024-11-08 18:34:03,803 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:34:03,803 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 102 mSDsluCounter, 742 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:34:03,804 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 875 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 18:34:03,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1023 states. [2024-11-08 18:34:03,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1023 to 799. [2024-11-08 18:34:03,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 799 states, 722 states have (on average 1.4044321329639888) internal successors, (1014), 729 states have internal predecessors, (1014), 66 states have call successors, (66), 10 states have call predecessors, (66), 10 states have return successors, (66), 59 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-08 18:34:03,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 1146 transitions. [2024-11-08 18:34:03,862 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 1146 transitions. Word has length 108 [2024-11-08 18:34:03,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:34:03,863 INFO L471 AbstractCegarLoop]: Abstraction has 799 states and 1146 transitions. [2024-11-08 18:34:03,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 7.285714285714286) internal successors, (51), 9 states have internal predecessors, (51), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-08 18:34:03,863 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 1146 transitions. [2024-11-08 18:34:03,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-08 18:34:03,865 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:34:03,865 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:34:03,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 18:34:03,865 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:34:03,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:03,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1171004910, now seen corresponding path program 1 times [2024-11-08 18:34:03,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:34:03,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292101507] [2024-11-08 18:34:03,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:03,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:34:03,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:06,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:34:06,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:06,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:34:06,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:06,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:34:06,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:06,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 18:34:06,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:06,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 18:34:06,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:06,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 18:34:06,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:06,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 18:34:06,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:06,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 18:34:06,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:06,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 18:34:06,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:06,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 18:34:06,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:06,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:34:06,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:06,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 18:34:06,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:06,216 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:34:06,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:34:06,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292101507] [2024-11-08 18:34:06,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292101507] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:34:06,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:34:06,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-08 18:34:06,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448099384] [2024-11-08 18:34:06,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:34:06,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 18:34:06,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:34:06,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 18:34:06,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2024-11-08 18:34:06,219 INFO L87 Difference]: Start difference. First operand 799 states and 1146 transitions. Second operand has 15 states, 10 states have (on average 5.1) internal successors, (51), 15 states have internal predecessors, (51), 6 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-08 18:34:08,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:34:08,045 INFO L93 Difference]: Finished difference Result 1760 states and 2521 transitions. [2024-11-08 18:34:08,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 18:34:08,046 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 10 states have (on average 5.1) internal successors, (51), 15 states have internal predecessors, (51), 6 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 6 states have call successors, (12) Word has length 108 [2024-11-08 18:34:08,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:34:08,051 INFO L225 Difference]: With dead ends: 1760 [2024-11-08 18:34:08,051 INFO L226 Difference]: Without dead ends: 1105 [2024-11-08 18:34:08,053 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2024-11-08 18:34:08,053 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 253 mSDsluCounter, 2037 mSDsCounter, 0 mSdLazyCounter, 1356 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 2279 SdHoareTripleChecker+Invalid, 1368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:34:08,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 2279 Invalid, 1368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1356 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-08 18:34:08,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1105 states. [2024-11-08 18:34:08,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1105 to 873. [2024-11-08 18:34:08,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 796 states have (on average 1.414572864321608) internal successors, (1126), 803 states have internal predecessors, (1126), 66 states have call successors, (66), 10 states have call predecessors, (66), 10 states have return successors, (66), 59 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-08 18:34:08,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1258 transitions. [2024-11-08 18:34:08,127 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1258 transitions. Word has length 108 [2024-11-08 18:34:08,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:34:08,127 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1258 transitions. [2024-11-08 18:34:08,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 10 states have (on average 5.1) internal successors, (51), 15 states have internal predecessors, (51), 6 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-08 18:34:08,127 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1258 transitions. [2024-11-08 18:34:08,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-08 18:34:08,129 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:34:08,129 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:34:08,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 18:34:08,130 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:34:08,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:08,130 INFO L85 PathProgramCache]: Analyzing trace with hash -748303084, now seen corresponding path program 1 times [2024-11-08 18:34:08,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:34:08,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130435227] [2024-11-08 18:34:08,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:08,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:34:08,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:09,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:34:09,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:09,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:34:09,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:09,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:34:09,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:09,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 18:34:09,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:09,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 18:34:09,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:09,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 18:34:09,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:09,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 18:34:09,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:09,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 18:34:09,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:09,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 18:34:09,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:09,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 18:34:09,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:09,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:34:09,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:09,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 18:34:09,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:09,171 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:34:09,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:34:09,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130435227] [2024-11-08 18:34:09,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130435227] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:34:09,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:34:09,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:34:09,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156188801] [2024-11-08 18:34:09,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:34:09,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:34:09,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:34:09,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:34:09,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:34:09,174 INFO L87 Difference]: Start difference. First operand 873 states and 1258 transitions. Second operand has 9 states, 7 states have (on average 7.285714285714286) internal successors, (51), 9 states have internal predecessors, (51), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-08 18:34:09,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:34:09,990 INFO L93 Difference]: Finished difference Result 1874 states and 2700 transitions. [2024-11-08 18:34:09,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:34:09,991 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 7.285714285714286) internal successors, (51), 9 states have internal predecessors, (51), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 3 states have call successors, (12) Word has length 108 [2024-11-08 18:34:09,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:34:09,999 INFO L225 Difference]: With dead ends: 1874 [2024-11-08 18:34:09,999 INFO L226 Difference]: Without dead ends: 1177 [2024-11-08 18:34:10,000 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:34:10,004 INFO L432 NwaCegarLoop]: 218 mSDtfsCounter, 101 mSDsluCounter, 1114 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 1332 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:34:10,004 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 1332 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 18:34:10,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1177 states. [2024-11-08 18:34:10,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1177 to 875. [2024-11-08 18:34:10,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 875 states, 798 states have (on average 1.413533834586466) internal successors, (1128), 805 states have internal predecessors, (1128), 66 states have call successors, (66), 10 states have call predecessors, (66), 10 states have return successors, (66), 59 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-08 18:34:10,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 875 states and 1260 transitions. [2024-11-08 18:34:10,065 INFO L78 Accepts]: Start accepts. Automaton has 875 states and 1260 transitions. Word has length 108 [2024-11-08 18:34:10,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:34:10,065 INFO L471 AbstractCegarLoop]: Abstraction has 875 states and 1260 transitions. [2024-11-08 18:34:10,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 7.285714285714286) internal successors, (51), 9 states have internal predecessors, (51), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-08 18:34:10,066 INFO L276 IsEmpty]: Start isEmpty. Operand 875 states and 1260 transitions. [2024-11-08 18:34:10,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-08 18:34:10,067 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:34:10,067 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:34:10,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 18:34:10,068 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:34:10,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:10,068 INFO L85 PathProgramCache]: Analyzing trace with hash 2133894866, now seen corresponding path program 1 times [2024-11-08 18:34:10,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:34:10,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299832401] [2024-11-08 18:34:10,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:10,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:34:10,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:11,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:34:11,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:11,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:34:11,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:11,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:34:11,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:11,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 18:34:11,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:11,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 18:34:11,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:11,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 18:34:11,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:11,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 18:34:11,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:11,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 18:34:11,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:11,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 18:34:11,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:11,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 18:34:11,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:11,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:34:11,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:11,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 18:34:11,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:11,365 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:34:11,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:34:11,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299832401] [2024-11-08 18:34:11,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299832401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:34:11,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:34:11,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:34:11,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440500732] [2024-11-08 18:34:11,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:34:11,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:34:11,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:34:11,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:34:11,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:34:11,368 INFO L87 Difference]: Start difference. First operand 875 states and 1260 transitions. Second operand has 9 states, 5 states have (on average 10.2) internal successors, (51), 9 states have internal predecessors, (51), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-08 18:34:12,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:34:12,160 INFO L93 Difference]: Finished difference Result 1693 states and 2428 transitions. [2024-11-08 18:34:12,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 18:34:12,161 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 5 states have (on average 10.2) internal successors, (51), 9 states have internal predecessors, (51), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 5 states have call successors, (12) Word has length 108 [2024-11-08 18:34:12,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:34:12,166 INFO L225 Difference]: With dead ends: 1693 [2024-11-08 18:34:12,166 INFO L226 Difference]: Without dead ends: 986 [2024-11-08 18:34:12,167 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:34:12,168 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 111 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 1033 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:34:12,168 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 1033 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 696 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 18:34:12,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 986 states. [2024-11-08 18:34:12,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 986 to 980. [2024-11-08 18:34:12,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 980 states, 882 states have (on average 1.3968253968253967) internal successors, (1232), 891 states have internal predecessors, (1232), 82 states have call successors, (82), 15 states have call predecessors, (82), 15 states have return successors, (82), 73 states have call predecessors, (82), 82 states have call successors, (82) [2024-11-08 18:34:12,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 980 states to 980 states and 1396 transitions. [2024-11-08 18:34:12,239 INFO L78 Accepts]: Start accepts. Automaton has 980 states and 1396 transitions. Word has length 108 [2024-11-08 18:34:12,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:34:12,240 INFO L471 AbstractCegarLoop]: Abstraction has 980 states and 1396 transitions. [2024-11-08 18:34:12,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 5 states have (on average 10.2) internal successors, (51), 9 states have internal predecessors, (51), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-08 18:34:12,240 INFO L276 IsEmpty]: Start isEmpty. Operand 980 states and 1396 transitions. [2024-11-08 18:34:12,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-08 18:34:12,241 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:34:12,242 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:34:12,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 18:34:12,242 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:34:12,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:12,243 INFO L85 PathProgramCache]: Analyzing trace with hash -295289682, now seen corresponding path program 1 times [2024-11-08 18:34:12,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:34:12,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008975889] [2024-11-08 18:34:12,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:12,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:34:12,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:13,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:34:13,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:13,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:34:13,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:13,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:34:13,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:13,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 18:34:13,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:13,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 18:34:13,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:13,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 18:34:13,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:13,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 18:34:13,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:13,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 18:34:13,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:13,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 18:34:13,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:13,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 18:34:13,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:13,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:34:13,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:13,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 18:34:13,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:13,112 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:34:13,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:34:13,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008975889] [2024-11-08 18:34:13,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008975889] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:34:13,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:34:13,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:34:13,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387287735] [2024-11-08 18:34:13,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:34:13,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:34:13,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:34:13,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:34:13,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:34:13,116 INFO L87 Difference]: Start difference. First operand 980 states and 1396 transitions. Second operand has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 8 states have internal predecessors, (52), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 18:34:13,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:34:13,998 INFO L93 Difference]: Finished difference Result 2124 states and 3014 transitions. [2024-11-08 18:34:13,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:34:13,999 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 8 states have internal predecessors, (52), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 109 [2024-11-08 18:34:13,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:34:14,005 INFO L225 Difference]: With dead ends: 2124 [2024-11-08 18:34:14,005 INFO L226 Difference]: Without dead ends: 1316 [2024-11-08 18:34:14,008 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:34:14,010 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 210 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:34:14,010 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 950 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 18:34:14,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1316 states. [2024-11-08 18:34:14,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1316 to 1124. [2024-11-08 18:34:14,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1124 states, 1013 states have (on average 1.386969397828233) internal successors, (1405), 1024 states have internal predecessors, (1405), 92 states have call successors, (92), 18 states have call predecessors, (92), 18 states have return successors, (92), 81 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-08 18:34:14,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1589 transitions. [2024-11-08 18:34:14,133 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1589 transitions. Word has length 109 [2024-11-08 18:34:14,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:34:14,133 INFO L471 AbstractCegarLoop]: Abstraction has 1124 states and 1589 transitions. [2024-11-08 18:34:14,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 8 states have internal predecessors, (52), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 18:34:14,134 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1589 transitions. [2024-11-08 18:34:14,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-08 18:34:14,136 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:34:14,136 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:34:14,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 18:34:14,136 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:34:14,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:14,137 INFO L85 PathProgramCache]: Analyzing trace with hash -748082190, now seen corresponding path program 1 times [2024-11-08 18:34:14,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:34:14,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58165027] [2024-11-08 18:34:14,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:14,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:34:14,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:14,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:34:14,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:14,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:34:14,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:14,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:34:14,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:14,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 18:34:14,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:14,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 18:34:14,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:14,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 18:34:14,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:14,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 18:34:14,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:14,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 18:34:14,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:14,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 18:34:14,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:14,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 18:34:14,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:14,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:34:14,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:14,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 18:34:14,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:14,955 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:34:14,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:34:14,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58165027] [2024-11-08 18:34:14,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58165027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:34:14,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:34:14,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:34:14,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716168260] [2024-11-08 18:34:14,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:34:14,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:34:14,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:34:14,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:34:14,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:34:14,957 INFO L87 Difference]: Start difference. First operand 1124 states and 1589 transitions. Second operand has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 8 states have internal predecessors, (52), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 18:34:15,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:34:15,732 INFO L93 Difference]: Finished difference Result 2203 states and 3115 transitions. [2024-11-08 18:34:15,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:34:15,732 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 8 states have internal predecessors, (52), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 109 [2024-11-08 18:34:15,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:34:15,738 INFO L225 Difference]: With dead ends: 2203 [2024-11-08 18:34:15,738 INFO L226 Difference]: Without dead ends: 1259 [2024-11-08 18:34:15,739 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:34:15,740 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 206 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:34:15,741 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 950 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 18:34:15,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1259 states. [2024-11-08 18:34:15,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1259 to 1128. [2024-11-08 18:34:15,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1128 states, 1017 states have (on average 1.3864306784660767) internal successors, (1410), 1028 states have internal predecessors, (1410), 92 states have call successors, (92), 18 states have call predecessors, (92), 18 states have return successors, (92), 81 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-08 18:34:15,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1128 states to 1128 states and 1594 transitions. [2024-11-08 18:34:15,825 INFO L78 Accepts]: Start accepts. Automaton has 1128 states and 1594 transitions. Word has length 109 [2024-11-08 18:34:15,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:34:15,825 INFO L471 AbstractCegarLoop]: Abstraction has 1128 states and 1594 transitions. [2024-11-08 18:34:15,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 8 states have internal predecessors, (52), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 18:34:15,825 INFO L276 IsEmpty]: Start isEmpty. Operand 1128 states and 1594 transitions. [2024-11-08 18:34:15,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-08 18:34:15,827 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:34:15,827 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:34:15,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 18:34:15,828 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:34:15,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:15,828 INFO L85 PathProgramCache]: Analyzing trace with hash -47017612, now seen corresponding path program 1 times [2024-11-08 18:34:15,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:34:15,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198171459] [2024-11-08 18:34:15,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:15,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:34:15,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:17,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:34:17,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:17,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:34:17,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:17,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:34:17,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:17,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 18:34:17,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:17,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 18:34:17,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:17,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 18:34:17,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:17,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 18:34:17,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:17,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 18:34:17,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:17,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 18:34:17,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:17,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 18:34:17,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:17,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:34:17,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:17,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 18:34:17,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:17,041 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:34:17,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:34:17,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198171459] [2024-11-08 18:34:17,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198171459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:34:17,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:34:17,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 18:34:17,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540684860] [2024-11-08 18:34:17,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:34:17,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:34:17,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:34:17,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:34:17,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:34:17,043 INFO L87 Difference]: Start difference. First operand 1128 states and 1594 transitions. Second operand has 10 states, 7 states have (on average 7.428571428571429) internal successors, (52), 10 states have internal predecessors, (52), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-08 18:34:18,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:34:18,083 INFO L93 Difference]: Finished difference Result 2131 states and 3012 transitions. [2024-11-08 18:34:18,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 18:34:18,084 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 7.428571428571429) internal successors, (52), 10 states have internal predecessors, (52), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 4 states have call successors, (12) Word has length 109 [2024-11-08 18:34:18,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:34:18,089 INFO L225 Difference]: With dead ends: 2131 [2024-11-08 18:34:18,089 INFO L226 Difference]: Without dead ends: 1179 [2024-11-08 18:34:18,091 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-11-08 18:34:18,092 INFO L432 NwaCegarLoop]: 218 mSDtfsCounter, 249 mSDsluCounter, 1092 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 1310 SdHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:34:18,092 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 1310 Invalid, 771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 750 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 18:34:18,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1179 states. [2024-11-08 18:34:18,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1179 to 1114. [2024-11-08 18:34:18,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1114 states, 1003 states have (on average 1.3838484546360916) internal successors, (1388), 1014 states have internal predecessors, (1388), 92 states have call successors, (92), 18 states have call predecessors, (92), 18 states have return successors, (92), 81 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-08 18:34:18,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1114 states to 1114 states and 1572 transitions. [2024-11-08 18:34:18,188 INFO L78 Accepts]: Start accepts. Automaton has 1114 states and 1572 transitions. Word has length 109 [2024-11-08 18:34:18,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:34:18,189 INFO L471 AbstractCegarLoop]: Abstraction has 1114 states and 1572 transitions. [2024-11-08 18:34:18,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 7.428571428571429) internal successors, (52), 10 states have internal predecessors, (52), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-08 18:34:18,189 INFO L276 IsEmpty]: Start isEmpty. Operand 1114 states and 1572 transitions. [2024-11-08 18:34:18,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-08 18:34:18,191 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:34:18,191 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:34:18,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 18:34:18,192 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:34:18,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:18,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1389166354, now seen corresponding path program 1 times [2024-11-08 18:34:18,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:34:18,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706938434] [2024-11-08 18:34:18,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:18,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:34:18,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:19,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:34:19,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:19,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:34:19,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:19,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:34:19,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:19,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 18:34:19,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:19,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 18:34:19,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:19,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 18:34:19,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:19,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 18:34:19,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:19,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 18:34:19,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:19,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 18:34:19,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:19,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 18:34:19,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:19,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:34:19,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:19,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 18:34:19,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:19,658 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:34:19,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:34:19,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706938434] [2024-11-08 18:34:19,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706938434] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:34:19,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:34:19,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-08 18:34:19,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901723568] [2024-11-08 18:34:19,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:34:19,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 18:34:19,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:34:19,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 18:34:19,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:34:19,662 INFO L87 Difference]: Start difference. First operand 1114 states and 1572 transitions. Second operand has 11 states, 6 states have (on average 8.833333333333334) internal successors, (53), 11 states have internal predecessors, (53), 6 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-08 18:34:20,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:34:20,873 INFO L93 Difference]: Finished difference Result 2372 states and 3347 transitions. [2024-11-08 18:34:20,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 18:34:20,874 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 6 states have (on average 8.833333333333334) internal successors, (53), 11 states have internal predecessors, (53), 6 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 6 states have call successors, (12) Word has length 110 [2024-11-08 18:34:20,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:34:20,880 INFO L225 Difference]: With dead ends: 2372 [2024-11-08 18:34:20,880 INFO L226 Difference]: Without dead ends: 1430 [2024-11-08 18:34:20,882 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-08 18:34:20,883 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 110 mSDsluCounter, 1075 mSDsCounter, 0 mSdLazyCounter, 915 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 1256 SdHoareTripleChecker+Invalid, 923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:34:20,883 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 1256 Invalid, 923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 915 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 18:34:20,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1430 states. [2024-11-08 18:34:20,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1430 to 1303. [2024-11-08 18:34:20,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1303 states, 1176 states have (on average 1.385204081632653) internal successors, (1629), 1189 states have internal predecessors, (1629), 104 states have call successors, (104), 22 states have call predecessors, (104), 22 states have return successors, (104), 91 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-08 18:34:20,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1303 states to 1303 states and 1837 transitions. [2024-11-08 18:34:20,997 INFO L78 Accepts]: Start accepts. Automaton has 1303 states and 1837 transitions. Word has length 110 [2024-11-08 18:34:20,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:34:20,998 INFO L471 AbstractCegarLoop]: Abstraction has 1303 states and 1837 transitions. [2024-11-08 18:34:20,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 6 states have (on average 8.833333333333334) internal successors, (53), 11 states have internal predecessors, (53), 6 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-08 18:34:20,998 INFO L276 IsEmpty]: Start isEmpty. Operand 1303 states and 1837 transitions. [2024-11-08 18:34:21,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-08 18:34:21,000 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:34:21,000 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:34:21,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 18:34:21,000 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:34:21,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:21,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1100362608, now seen corresponding path program 1 times [2024-11-08 18:34:21,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:34:21,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254676467] [2024-11-08 18:34:21,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:21,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:34:21,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:22,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:34:22,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:22,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:34:22,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:22,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:34:22,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:22,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 18:34:22,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:22,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 18:34:22,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:22,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 18:34:22,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:22,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 18:34:22,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:22,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 18:34:22,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:22,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 18:34:22,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:22,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 18:34:22,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:22,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:34:22,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:22,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 18:34:22,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:22,533 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:34:22,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:34:22,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254676467] [2024-11-08 18:34:22,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254676467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:34:22,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:34:22,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-08 18:34:22,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783038529] [2024-11-08 18:34:22,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:34:22,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 18:34:22,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:34:22,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 18:34:22,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2024-11-08 18:34:22,536 INFO L87 Difference]: Start difference. First operand 1303 states and 1837 transitions. Second operand has 14 states, 13 states have (on average 4.076923076923077) internal successors, (53), 14 states have internal predecessors, (53), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 18:34:23,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:34:23,726 INFO L93 Difference]: Finished difference Result 2773 states and 3904 transitions. [2024-11-08 18:34:23,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 18:34:23,727 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.076923076923077) internal successors, (53), 14 states have internal predecessors, (53), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 110 [2024-11-08 18:34:23,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:34:23,733 INFO L225 Difference]: With dead ends: 2773 [2024-11-08 18:34:23,734 INFO L226 Difference]: Without dead ends: 1673 [2024-11-08 18:34:23,736 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=56, Invalid=324, Unknown=0, NotChecked=0, Total=380 [2024-11-08 18:34:23,737 INFO L432 NwaCegarLoop]: 215 mSDtfsCounter, 109 mSDsluCounter, 1918 mSDsCounter, 0 mSdLazyCounter, 819 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 2133 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:34:23,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 2133 Invalid, 823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 819 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 18:34:23,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1673 states. [2024-11-08 18:34:23,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1673 to 1432. [2024-11-08 18:34:23,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1300 states have (on average 1.3853846153846154) internal successors, (1801), 1314 states have internal predecessors, (1801), 108 states have call successors, (108), 23 states have call predecessors, (108), 23 states have return successors, (108), 94 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-08 18:34:23,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 2017 transitions. [2024-11-08 18:34:23,848 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 2017 transitions. Word has length 110 [2024-11-08 18:34:23,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:34:23,848 INFO L471 AbstractCegarLoop]: Abstraction has 1432 states and 2017 transitions. [2024-11-08 18:34:23,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.076923076923077) internal successors, (53), 14 states have internal predecessors, (53), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 18:34:23,849 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 2017 transitions. [2024-11-08 18:34:23,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 18:34:23,851 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:34:23,851 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:34:23,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 18:34:23,851 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:34:23,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:23,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1569385383, now seen corresponding path program 1 times [2024-11-08 18:34:23,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:34:23,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433329313] [2024-11-08 18:34:23,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:23,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:34:23,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 18:34:23,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1114433711] [2024-11-08 18:34:23,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:23,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:34:23,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:34:23,939 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:34:23,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 18:34:24,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:34:24,243 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:34:24,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:34:24,525 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:34:24,525 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 18:34:24,526 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 18:34:24,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-08 18:34:24,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2024-11-08 18:34:24,732 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] [2024-11-08 18:34:24,809 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 18:34:24,812 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 06:34:24 BoogieIcfgContainer [2024-11-08 18:34:24,812 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 18:34:24,812 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 18:34:24,812 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 18:34:24,813 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 18:34:24,813 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:33:50" (3/4) ... [2024-11-08 18:34:24,816 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 18:34:24,817 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 18:34:24,817 INFO L158 Benchmark]: Toolchain (without parser) took 35550.41ms. Allocated memory was 161.5MB in the beginning and 708.8MB in the end (delta: 547.4MB). Free memory was 131.8MB in the beginning and 324.4MB in the end (delta: -192.7MB). Peak memory consumption was 355.2MB. Max. memory is 16.1GB. [2024-11-08 18:34:24,818 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 123.7MB. Free memory is still 96.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:34:24,818 INFO L158 Benchmark]: CACSL2BoogieTranslator took 420.78ms. Allocated memory is still 161.5MB. Free memory was 131.6MB in the beginning and 115.6MB in the end (delta: 15.9MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. [2024-11-08 18:34:24,818 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.36ms. Allocated memory is still 161.5MB. Free memory was 115.6MB in the beginning and 110.6MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 18:34:24,819 INFO L158 Benchmark]: Boogie Preprocessor took 116.01ms. Allocated memory is still 161.5MB. Free memory was 110.6MB in the beginning and 105.0MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-08 18:34:24,819 INFO L158 Benchmark]: RCFGBuilder took 939.89ms. Allocated memory is still 161.5MB. Free memory was 105.0MB in the beginning and 92.5MB in the end (delta: 12.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-08 18:34:24,819 INFO L158 Benchmark]: TraceAbstraction took 33974.41ms. Allocated memory was 161.5MB in the beginning and 708.8MB in the end (delta: 547.4MB). Free memory was 91.6MB in the beginning and 324.4MB in the end (delta: -232.8MB). Peak memory consumption was 316.4MB. Max. memory is 16.1GB. [2024-11-08 18:34:24,820 INFO L158 Benchmark]: Witness Printer took 4.61ms. Allocated memory is still 708.8MB. Free memory is still 324.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:34:24,822 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 123.7MB. Free memory is still 96.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 420.78ms. Allocated memory is still 161.5MB. Free memory was 131.6MB in the beginning and 115.6MB in the end (delta: 15.9MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.36ms. Allocated memory is still 161.5MB. Free memory was 115.6MB in the beginning and 110.6MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 116.01ms. Allocated memory is still 161.5MB. Free memory was 110.6MB in the beginning and 105.0MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 939.89ms. Allocated memory is still 161.5MB. Free memory was 105.0MB in the beginning and 92.5MB in the end (delta: 12.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 33974.41ms. Allocated memory was 161.5MB in the beginning and 708.8MB in the end (delta: 547.4MB). Free memory was 91.6MB in the beginning and 324.4MB in the end (delta: -232.8MB). Peak memory consumption was 316.4MB. Max. memory is 16.1GB. * Witness Printer took 4.61ms. Allocated memory is still 708.8MB. Free memory is still 324.4MB. 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 88, overapproximation of someUnaryDOUBLEoperation at line 26. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[1] = { 1 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[1] = { 1 }; [L25-L27] float float_Array_0[3] = { 9.125, 50.5, -0.6 }; [L25-L27] float float_Array_0[3] = { 9.125, 50.5, -0.6 }; [L25-L27] float float_Array_0[3] = { 9.125, 50.5, -0.6 }; [L25-L27] float float_Array_0[3] = { 9.125, 50.5, -0.6 }; [L28-L30] unsigned short int unsigned_short_int_Array_0[2][3] = { {8, 32, 200}, {1, 56955, 10} }; [L28-L30] unsigned short int unsigned_short_int_Array_0[2][3] = { {8, 32, 200}, {1, 56955, 10} }; [L28-L30] unsigned short int unsigned_short_int_Array_0[2][3] = { {8, 32, 200}, {1, 56955, 10} }; [L28-L30] unsigned short int unsigned_short_int_Array_0[2][3] = { {8, 32, 200}, {1, 56955, 10} }; [L28-L30] unsigned short int unsigned_short_int_Array_0[2][3] = { {8, 32, 200}, {1, 56955, 10} }; [L28-L30] unsigned short int unsigned_short_int_Array_0[2][3] = { {8, 32, 200}, {1, 56955, 10} }; [L28-L30] unsigned short int unsigned_short_int_Array_0[2][3] = { {8, 32, 200}, {1, 56955, 10} }; [L31] unsigned short int last_1_unsigned_short_int_Array_0_0__0_ = 8; [L32] unsigned short int last_1_unsigned_short_int_Array_0_1__2_ = 10; VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=0, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L92] isInitial = 1 [L93] FCALL initially() [L94] COND TRUE 1 [L95] CALL updateLastVariables() [L84] EXPR unsigned_short_int_Array_0[0][0] [L84] last_1_unsigned_short_int_Array_0_0__0_ = unsigned_short_int_Array_0[0][0] [L85] EXPR unsigned_short_int_Array_0[1][2] [L85] last_1_unsigned_short_int_Array_0_1__2_ = unsigned_short_int_Array_0[1][2] [L95] RET updateLastVariables() [L96] CALL updateVariables() [L63] BOOL_unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L64] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L64] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L64] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L65] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L65] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L65] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L66] float_Array_0[0] = __VERIFIER_nondet_float() [L67] EXPR float_Array_0[0] [L67] EXPR float_Array_0[0] >= -922337.2036854765600e+13F && float_Array_0[0] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L67] EXPR float_Array_0[0] >= -922337.2036854765600e+13F && float_Array_0[0] <= -1.0e-20F [L67] EXPR float_Array_0[0] [L67] EXPR float_Array_0[0] >= -922337.2036854765600e+13F && float_Array_0[0] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L67] EXPR (float_Array_0[0] >= -922337.2036854765600e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854765600e+12F && float_Array_0[0] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L67] EXPR (float_Array_0[0] >= -922337.2036854765600e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854765600e+12F && float_Array_0[0] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L67] CALL assume_abort_if_not((float_Array_0[0] >= -922337.2036854765600e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854765600e+12F && float_Array_0[0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L67] RET assume_abort_if_not((float_Array_0[0] >= -922337.2036854765600e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854765600e+12F && float_Array_0[0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L68] float_Array_0[1] = __VERIFIER_nondet_float() [L69] EXPR float_Array_0[1] [L69] 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, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L69] EXPR float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F [L69] EXPR float_Array_0[1] [L69] 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, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L69] 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, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L69] 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, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L69] 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, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L69] 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, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L70] unsigned_short_int_Array_0[1][0] = __VERIFIER_nondet_ushort() [L71] EXPR unsigned_short_int_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L71] CALL assume_abort_if_not(unsigned_short_int_Array_0[1][0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L71] RET assume_abort_if_not(unsigned_short_int_Array_0[1][0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L72] EXPR unsigned_short_int_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L72] CALL assume_abort_if_not(unsigned_short_int_Array_0[1][0] <= 65534) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L72] RET assume_abort_if_not(unsigned_short_int_Array_0[1][0] <= 65534) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L73] unsigned_short_int_Array_0[0][1] = __VERIFIER_nondet_ushort() [L74] EXPR unsigned_short_int_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L74] CALL assume_abort_if_not(unsigned_short_int_Array_0[0][1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L74] RET assume_abort_if_not(unsigned_short_int_Array_0[0][1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L75] EXPR unsigned_short_int_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L75] CALL assume_abort_if_not(unsigned_short_int_Array_0[0][1] <= 32767) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L75] RET assume_abort_if_not(unsigned_short_int_Array_0[0][1] <= 32767) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L76] unsigned_short_int_Array_0[1][1] = __VERIFIER_nondet_ushort() [L77] EXPR unsigned_short_int_Array_0[1][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L77] CALL assume_abort_if_not(unsigned_short_int_Array_0[1][1] >= 32767) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L77] RET assume_abort_if_not(unsigned_short_int_Array_0[1][1] >= 32767) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L78] EXPR unsigned_short_int_Array_0[1][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L78] CALL assume_abort_if_not(unsigned_short_int_Array_0[1][1] <= 65534) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L78] RET assume_abort_if_not(unsigned_short_int_Array_0[1][1] <= 65534) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L79] unsigned_short_int_Array_0[0][2] = __VERIFIER_nondet_ushort() [L80] EXPR unsigned_short_int_Array_0[0][2] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L80] CALL assume_abort_if_not(unsigned_short_int_Array_0[0][2] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L80] RET assume_abort_if_not(unsigned_short_int_Array_0[0][2] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L81] EXPR unsigned_short_int_Array_0[0][2] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L81] CALL assume_abort_if_not(unsigned_short_int_Array_0[0][2] <= 65534) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L81] RET assume_abort_if_not(unsigned_short_int_Array_0[0][2] <= 65534) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L96] RET updateVariables() [L97] CALL step() [L36] COND TRUE last_1_unsigned_short_int_Array_0_0__0_ <= (last_1_unsigned_short_int_Array_0_0__0_ * last_1_unsigned_short_int_Array_0_1__2_) [L37] EXPR unsigned_short_int_Array_0[0][2] [L37] EXPR unsigned_short_int_Array_0[1][1] [L37] EXPR unsigned_short_int_Array_0[0][1] [L37] EXPR unsigned_short_int_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L37] EXPR (((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) > (unsigned_short_int_Array_0[1][0])) ? ((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) : (unsigned_short_int_Array_0[1][0]) [L37] EXPR unsigned_short_int_Array_0[1][0] [L37] EXPR (((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) > (unsigned_short_int_Array_0[1][0])) ? ((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) : (unsigned_short_int_Array_0[1][0]) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L37] EXPR ((unsigned_short_int_Array_0[0][2]) > ((((((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) > (unsigned_short_int_Array_0[1][0])) ? ((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) : (unsigned_short_int_Array_0[1][0]))))) ? (unsigned_short_int_Array_0[0][2]) : ((((((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) > (unsigned_short_int_Array_0[1][0])) ? ((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) : (unsigned_short_int_Array_0[1][0])))) [L37] EXPR unsigned_short_int_Array_0[0][2] [L37] EXPR ((unsigned_short_int_Array_0[0][2]) > ((((((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) > (unsigned_short_int_Array_0[1][0])) ? ((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) : (unsigned_short_int_Array_0[1][0]))))) ? (unsigned_short_int_Array_0[0][2]) : ((((((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) > (unsigned_short_int_Array_0[1][0])) ? ((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) : (unsigned_short_int_Array_0[1][0])))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L37] unsigned_short_int_Array_0[1][2] = ((((unsigned_short_int_Array_0[0][2]) > ((((((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) > (unsigned_short_int_Array_0[1][0])) ? ((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) : (unsigned_short_int_Array_0[1][0]))))) ? (unsigned_short_int_Array_0[0][2]) : ((((((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) > (unsigned_short_int_Array_0[1][0])) ? ((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) : (unsigned_short_int_Array_0[1][0])))))) [L39] EXPR BOOL_unsigned_char_Array_0[0] [L39] BOOL_unsigned_char_Array_0[0] || (unsigned_short_int_Array_0[1][1] == unsigned_short_int_Array_0[1][0]) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L39] BOOL_unsigned_char_Array_0[0] || (unsigned_short_int_Array_0[1][1] == unsigned_short_int_Array_0[1][0]) [L39] EXPR unsigned_short_int_Array_0[1][1] [L39] EXPR unsigned_short_int_Array_0[1][0] [L39] BOOL_unsigned_char_Array_0[0] || (unsigned_short_int_Array_0[1][1] == unsigned_short_int_Array_0[1][0]) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L39] COND FALSE !(BOOL_unsigned_char_Array_0[0] || (unsigned_short_int_Array_0[1][1] == unsigned_short_int_Array_0[1][0])) [L50] EXPR unsigned_short_int_Array_0[1][1] [L50] unsigned_short_int_Array_0[0][0] = unsigned_short_int_Array_0[1][1] [L52] EXPR unsigned_short_int_Array_0[0][1] [L52] EXPR unsigned_short_int_Array_0[1][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L52] COND FALSE !(unsigned_short_int_Array_0[0][1] != unsigned_short_int_Array_0[1][1]) [L59] EXPR float_Array_0[0] [L59] float_Array_0[2] = float_Array_0[0] [L97] RET step() [L98] CALL, EXPR property() [L88] EXPR (last_1_unsigned_short_int_Array_0_0__0_ <= (last_1_unsigned_short_int_Array_0_0__0_ * last_1_unsigned_short_int_Array_0_1__2_)) ? (unsigned_short_int_Array_0[1][2] == ((unsigned short int) ((((unsigned_short_int_Array_0[0][2]) > ((((((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) > (unsigned_short_int_Array_0[1][0])) ? ((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) : (unsigned_short_int_Array_0[1][0]))))) ? (unsigned_short_int_Array_0[0][2]) : ((((((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) > (unsigned_short_int_Array_0[1][0])) ? ((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) : (unsigned_short_int_Array_0[1][0])))))))) : 1 [L88] EXPR unsigned_short_int_Array_0[1][2] [L88] EXPR unsigned_short_int_Array_0[0][2] [L88] EXPR unsigned_short_int_Array_0[1][1] [L88] EXPR unsigned_short_int_Array_0[0][1] [L88] EXPR unsigned_short_int_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L88] EXPR (((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) > (unsigned_short_int_Array_0[1][0])) ? ((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) : (unsigned_short_int_Array_0[1][0]) [L88] EXPR unsigned_short_int_Array_0[1][0] [L88] EXPR (((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) > (unsigned_short_int_Array_0[1][0])) ? ((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) : (unsigned_short_int_Array_0[1][0]) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L88] EXPR ((unsigned_short_int_Array_0[0][2]) > ((((((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) > (unsigned_short_int_Array_0[1][0])) ? ((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) : (unsigned_short_int_Array_0[1][0]))))) ? (unsigned_short_int_Array_0[0][2]) : ((((((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) > (unsigned_short_int_Array_0[1][0])) ? ((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) : (unsigned_short_int_Array_0[1][0])))) [L88] EXPR unsigned_short_int_Array_0[0][2] [L88] EXPR ((unsigned_short_int_Array_0[0][2]) > ((((((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) > (unsigned_short_int_Array_0[1][0])) ? ((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) : (unsigned_short_int_Array_0[1][0]))))) ? (unsigned_short_int_Array_0[0][2]) : ((((((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) > (unsigned_short_int_Array_0[1][0])) ? ((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) : (unsigned_short_int_Array_0[1][0])))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L88] EXPR (last_1_unsigned_short_int_Array_0_0__0_ <= (last_1_unsigned_short_int_Array_0_0__0_ * last_1_unsigned_short_int_Array_0_1__2_)) ? (unsigned_short_int_Array_0[1][2] == ((unsigned short int) ((((unsigned_short_int_Array_0[0][2]) > ((((((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) > (unsigned_short_int_Array_0[1][0])) ? ((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) : (unsigned_short_int_Array_0[1][0]))))) ? (unsigned_short_int_Array_0[0][2]) : ((((((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) > (unsigned_short_int_Array_0[1][0])) ? ((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) : (unsigned_short_int_Array_0[1][0])))))))) : 1 VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L88] EXPR ((last_1_unsigned_short_int_Array_0_0__0_ <= (last_1_unsigned_short_int_Array_0_0__0_ * last_1_unsigned_short_int_Array_0_1__2_)) ? (unsigned_short_int_Array_0[1][2] == ((unsigned short int) ((((unsigned_short_int_Array_0[0][2]) > ((((((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) > (unsigned_short_int_Array_0[1][0])) ? ((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) : (unsigned_short_int_Array_0[1][0]))))) ? (unsigned_short_int_Array_0[0][2]) : ((((((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) > (unsigned_short_int_Array_0[1][0])) ? ((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) : (unsigned_short_int_Array_0[1][0])))))))) : 1) && ((BOOL_unsigned_char_Array_0[0] || (unsigned_short_int_Array_0[1][1] == unsigned_short_int_Array_0[1][0])) ? ((unsigned_short_int_Array_0[1][1] <= (((((0) < (unsigned_short_int_Array_0[1][2])) ? (0) : (unsigned_short_int_Array_0[1][2]))) << unsigned_short_int_Array_0[1][2])) ? ((BOOL_unsigned_char_Array_0[0] && (unsigned_short_int_Array_0[1][2] == (unsigned_short_int_Array_0[1][1] * unsigned_short_int_Array_0[0][2]))) ? (unsigned_short_int_Array_0[0][0] == ((unsigned short int) unsigned_short_int_Array_0[0][2])) : (unsigned_short_int_Array_0[0][0] == ((unsigned short int) unsigned_short_int_Array_0[0][2]))) : (unsigned_short_int_Array_0[0][0] == ((unsigned short int) 2))) : (unsigned_short_int_Array_0[0][0] == ((unsigned short int) unsigned_short_int_Array_0[1][1]))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L88] EXPR ((last_1_unsigned_short_int_Array_0_0__0_ <= (last_1_unsigned_short_int_Array_0_0__0_ * last_1_unsigned_short_int_Array_0_1__2_)) ? (unsigned_short_int_Array_0[1][2] == ((unsigned short int) ((((unsigned_short_int_Array_0[0][2]) > ((((((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) > (unsigned_short_int_Array_0[1][0])) ? ((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) : (unsigned_short_int_Array_0[1][0]))))) ? (unsigned_short_int_Array_0[0][2]) : ((((((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) > (unsigned_short_int_Array_0[1][0])) ? ((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) : (unsigned_short_int_Array_0[1][0])))))))) : 1) && ((BOOL_unsigned_char_Array_0[0] || (unsigned_short_int_Array_0[1][1] == unsigned_short_int_Array_0[1][0])) ? ((unsigned_short_int_Array_0[1][1] <= (((((0) < (unsigned_short_int_Array_0[1][2])) ? (0) : (unsigned_short_int_Array_0[1][2]))) << unsigned_short_int_Array_0[1][2])) ? ((BOOL_unsigned_char_Array_0[0] && (unsigned_short_int_Array_0[1][2] == (unsigned_short_int_Array_0[1][1] * unsigned_short_int_Array_0[0][2]))) ? (unsigned_short_int_Array_0[0][0] == ((unsigned short int) unsigned_short_int_Array_0[0][2])) : (unsigned_short_int_Array_0[0][0] == ((unsigned short int) unsigned_short_int_Array_0[0][2]))) : (unsigned_short_int_Array_0[0][0] == ((unsigned short int) 2))) : (unsigned_short_int_Array_0[0][0] == ((unsigned short int) unsigned_short_int_Array_0[1][1]))) [L88] EXPR BOOL_unsigned_char_Array_0[0] [L88] EXPR BOOL_unsigned_char_Array_0[0] || (unsigned_short_int_Array_0[1][1] == unsigned_short_int_Array_0[1][0]) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L88] EXPR BOOL_unsigned_char_Array_0[0] || (unsigned_short_int_Array_0[1][1] == unsigned_short_int_Array_0[1][0]) [L88] EXPR unsigned_short_int_Array_0[1][1] [L88] EXPR unsigned_short_int_Array_0[1][0] [L88] EXPR BOOL_unsigned_char_Array_0[0] || (unsigned_short_int_Array_0[1][1] == unsigned_short_int_Array_0[1][0]) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L88] EXPR (BOOL_unsigned_char_Array_0[0] || (unsigned_short_int_Array_0[1][1] == unsigned_short_int_Array_0[1][0])) ? ((unsigned_short_int_Array_0[1][1] <= (((((0) < (unsigned_short_int_Array_0[1][2])) ? (0) : (unsigned_short_int_Array_0[1][2]))) << unsigned_short_int_Array_0[1][2])) ? ((BOOL_unsigned_char_Array_0[0] && (unsigned_short_int_Array_0[1][2] == (unsigned_short_int_Array_0[1][1] * unsigned_short_int_Array_0[0][2]))) ? (unsigned_short_int_Array_0[0][0] == ((unsigned short int) unsigned_short_int_Array_0[0][2])) : (unsigned_short_int_Array_0[0][0] == ((unsigned short int) unsigned_short_int_Array_0[0][2]))) : (unsigned_short_int_Array_0[0][0] == ((unsigned short int) 2))) : (unsigned_short_int_Array_0[0][0] == ((unsigned short int) unsigned_short_int_Array_0[1][1])) [L88] EXPR unsigned_short_int_Array_0[0][0] [L88] EXPR unsigned_short_int_Array_0[1][1] [L88] EXPR (BOOL_unsigned_char_Array_0[0] || (unsigned_short_int_Array_0[1][1] == unsigned_short_int_Array_0[1][0])) ? ((unsigned_short_int_Array_0[1][1] <= (((((0) < (unsigned_short_int_Array_0[1][2])) ? (0) : (unsigned_short_int_Array_0[1][2]))) << unsigned_short_int_Array_0[1][2])) ? ((BOOL_unsigned_char_Array_0[0] && (unsigned_short_int_Array_0[1][2] == (unsigned_short_int_Array_0[1][1] * unsigned_short_int_Array_0[0][2]))) ? (unsigned_short_int_Array_0[0][0] == ((unsigned short int) unsigned_short_int_Array_0[0][2])) : (unsigned_short_int_Array_0[0][0] == ((unsigned short int) unsigned_short_int_Array_0[0][2]))) : (unsigned_short_int_Array_0[0][0] == ((unsigned short int) 2))) : (unsigned_short_int_Array_0[0][0] == ((unsigned short int) unsigned_short_int_Array_0[1][1])) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L88] EXPR ((last_1_unsigned_short_int_Array_0_0__0_ <= (last_1_unsigned_short_int_Array_0_0__0_ * last_1_unsigned_short_int_Array_0_1__2_)) ? (unsigned_short_int_Array_0[1][2] == ((unsigned short int) ((((unsigned_short_int_Array_0[0][2]) > ((((((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) > (unsigned_short_int_Array_0[1][0])) ? ((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) : (unsigned_short_int_Array_0[1][0]))))) ? (unsigned_short_int_Array_0[0][2]) : ((((((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) > (unsigned_short_int_Array_0[1][0])) ? ((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) : (unsigned_short_int_Array_0[1][0])))))))) : 1) && ((BOOL_unsigned_char_Array_0[0] || (unsigned_short_int_Array_0[1][1] == unsigned_short_int_Array_0[1][0])) ? ((unsigned_short_int_Array_0[1][1] <= (((((0) < (unsigned_short_int_Array_0[1][2])) ? (0) : (unsigned_short_int_Array_0[1][2]))) << unsigned_short_int_Array_0[1][2])) ? ((BOOL_unsigned_char_Array_0[0] && (unsigned_short_int_Array_0[1][2] == (unsigned_short_int_Array_0[1][1] * unsigned_short_int_Array_0[0][2]))) ? (unsigned_short_int_Array_0[0][0] == ((unsigned short int) unsigned_short_int_Array_0[0][2])) : (unsigned_short_int_Array_0[0][0] == ((unsigned short int) unsigned_short_int_Array_0[0][2]))) : (unsigned_short_int_Array_0[0][0] == ((unsigned short int) 2))) : (unsigned_short_int_Array_0[0][0] == ((unsigned short int) unsigned_short_int_Array_0[1][1]))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L88] EXPR (((last_1_unsigned_short_int_Array_0_0__0_ <= (last_1_unsigned_short_int_Array_0_0__0_ * last_1_unsigned_short_int_Array_0_1__2_)) ? (unsigned_short_int_Array_0[1][2] == ((unsigned short int) ((((unsigned_short_int_Array_0[0][2]) > ((((((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) > (unsigned_short_int_Array_0[1][0])) ? ((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) : (unsigned_short_int_Array_0[1][0]))))) ? (unsigned_short_int_Array_0[0][2]) : ((((((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) > (unsigned_short_int_Array_0[1][0])) ? ((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) : (unsigned_short_int_Array_0[1][0])))))))) : 1) && ((BOOL_unsigned_char_Array_0[0] || (unsigned_short_int_Array_0[1][1] == unsigned_short_int_Array_0[1][0])) ? ((unsigned_short_int_Array_0[1][1] <= (((((0) < (unsigned_short_int_Array_0[1][2])) ? (0) : (unsigned_short_int_Array_0[1][2]))) << unsigned_short_int_Array_0[1][2])) ? ((BOOL_unsigned_char_Array_0[0] && (unsigned_short_int_Array_0[1][2] == (unsigned_short_int_Array_0[1][1] * unsigned_short_int_Array_0[0][2]))) ? (unsigned_short_int_Array_0[0][0] == ((unsigned short int) unsigned_short_int_Array_0[0][2])) : (unsigned_short_int_Array_0[0][0] == ((unsigned short int) unsigned_short_int_Array_0[0][2]))) : (unsigned_short_int_Array_0[0][0] == ((unsigned short int) 2))) : (unsigned_short_int_Array_0[0][0] == ((unsigned short int) unsigned_short_int_Array_0[1][1])))) && ((unsigned_short_int_Array_0[0][1] != unsigned_short_int_Array_0[1][1]) ? ((unsigned_short_int_Array_0[0][1] <= unsigned_short_int_Array_0[0][0]) ? (float_Array_0[2] == ((float) ((((float_Array_0[0]) > (float_Array_0[1])) ? (float_Array_0[0]) : (float_Array_0[1]))))) : (float_Array_0[2] == ((float) float_Array_0[0]))) : (float_Array_0[2] == ((float) float_Array_0[0]))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L88] EXPR (((last_1_unsigned_short_int_Array_0_0__0_ <= (last_1_unsigned_short_int_Array_0_0__0_ * last_1_unsigned_short_int_Array_0_1__2_)) ? (unsigned_short_int_Array_0[1][2] == ((unsigned short int) ((((unsigned_short_int_Array_0[0][2]) > ((((((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) > (unsigned_short_int_Array_0[1][0])) ? ((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) : (unsigned_short_int_Array_0[1][0]))))) ? (unsigned_short_int_Array_0[0][2]) : ((((((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) > (unsigned_short_int_Array_0[1][0])) ? ((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) : (unsigned_short_int_Array_0[1][0])))))))) : 1) && ((BOOL_unsigned_char_Array_0[0] || (unsigned_short_int_Array_0[1][1] == unsigned_short_int_Array_0[1][0])) ? ((unsigned_short_int_Array_0[1][1] <= (((((0) < (unsigned_short_int_Array_0[1][2])) ? (0) : (unsigned_short_int_Array_0[1][2]))) << unsigned_short_int_Array_0[1][2])) ? ((BOOL_unsigned_char_Array_0[0] && (unsigned_short_int_Array_0[1][2] == (unsigned_short_int_Array_0[1][1] * unsigned_short_int_Array_0[0][2]))) ? (unsigned_short_int_Array_0[0][0] == ((unsigned short int) unsigned_short_int_Array_0[0][2])) : (unsigned_short_int_Array_0[0][0] == ((unsigned short int) unsigned_short_int_Array_0[0][2]))) : (unsigned_short_int_Array_0[0][0] == ((unsigned short int) 2))) : (unsigned_short_int_Array_0[0][0] == ((unsigned short int) unsigned_short_int_Array_0[1][1])))) && ((unsigned_short_int_Array_0[0][1] != unsigned_short_int_Array_0[1][1]) ? ((unsigned_short_int_Array_0[0][1] <= unsigned_short_int_Array_0[0][0]) ? (float_Array_0[2] == ((float) ((((float_Array_0[0]) > (float_Array_0[1])) ? (float_Array_0[0]) : (float_Array_0[1]))))) : (float_Array_0[2] == ((float) float_Array_0[0]))) : (float_Array_0[2] == ((float) float_Array_0[0]))) [L88] EXPR unsigned_short_int_Array_0[0][1] [L88] EXPR unsigned_short_int_Array_0[1][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L88] EXPR (unsigned_short_int_Array_0[0][1] != unsigned_short_int_Array_0[1][1]) ? ((unsigned_short_int_Array_0[0][1] <= unsigned_short_int_Array_0[0][0]) ? (float_Array_0[2] == ((float) ((((float_Array_0[0]) > (float_Array_0[1])) ? (float_Array_0[0]) : (float_Array_0[1]))))) : (float_Array_0[2] == ((float) float_Array_0[0]))) : (float_Array_0[2] == ((float) float_Array_0[0])) [L88] EXPR float_Array_0[2] [L88] EXPR float_Array_0[0] [L88] EXPR (unsigned_short_int_Array_0[0][1] != unsigned_short_int_Array_0[1][1]) ? ((unsigned_short_int_Array_0[0][1] <= unsigned_short_int_Array_0[0][0]) ? (float_Array_0[2] == ((float) ((((float_Array_0[0]) > (float_Array_0[1])) ? (float_Array_0[0]) : (float_Array_0[1]))))) : (float_Array_0[2] == ((float) float_Array_0[0]))) : (float_Array_0[2] == ((float) float_Array_0[0])) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L88] EXPR (((last_1_unsigned_short_int_Array_0_0__0_ <= (last_1_unsigned_short_int_Array_0_0__0_ * last_1_unsigned_short_int_Array_0_1__2_)) ? (unsigned_short_int_Array_0[1][2] == ((unsigned short int) ((((unsigned_short_int_Array_0[0][2]) > ((((((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) > (unsigned_short_int_Array_0[1][0])) ? ((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) : (unsigned_short_int_Array_0[1][0]))))) ? (unsigned_short_int_Array_0[0][2]) : ((((((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) > (unsigned_short_int_Array_0[1][0])) ? ((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) : (unsigned_short_int_Array_0[1][0])))))))) : 1) && ((BOOL_unsigned_char_Array_0[0] || (unsigned_short_int_Array_0[1][1] == unsigned_short_int_Array_0[1][0])) ? ((unsigned_short_int_Array_0[1][1] <= (((((0) < (unsigned_short_int_Array_0[1][2])) ? (0) : (unsigned_short_int_Array_0[1][2]))) << unsigned_short_int_Array_0[1][2])) ? ((BOOL_unsigned_char_Array_0[0] && (unsigned_short_int_Array_0[1][2] == (unsigned_short_int_Array_0[1][1] * unsigned_short_int_Array_0[0][2]))) ? (unsigned_short_int_Array_0[0][0] == ((unsigned short int) unsigned_short_int_Array_0[0][2])) : (unsigned_short_int_Array_0[0][0] == ((unsigned short int) unsigned_short_int_Array_0[0][2]))) : (unsigned_short_int_Array_0[0][0] == ((unsigned short int) 2))) : (unsigned_short_int_Array_0[0][0] == ((unsigned short int) unsigned_short_int_Array_0[1][1])))) && ((unsigned_short_int_Array_0[0][1] != unsigned_short_int_Array_0[1][1]) ? ((unsigned_short_int_Array_0[0][1] <= unsigned_short_int_Array_0[0][0]) ? (float_Array_0[2] == ((float) ((((float_Array_0[0]) > (float_Array_0[1])) ? (float_Array_0[0]) : (float_Array_0[1]))))) : (float_Array_0[2] == ((float) float_Array_0[0]))) : (float_Array_0[2] == ((float) float_Array_0[0]))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L88-L89] return (((last_1_unsigned_short_int_Array_0_0__0_ <= (last_1_unsigned_short_int_Array_0_0__0_ * last_1_unsigned_short_int_Array_0_1__2_)) ? (unsigned_short_int_Array_0[1][2] == ((unsigned short int) ((((unsigned_short_int_Array_0[0][2]) > ((((((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) > (unsigned_short_int_Array_0[1][0])) ? ((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) : (unsigned_short_int_Array_0[1][0]))))) ? (unsigned_short_int_Array_0[0][2]) : ((((((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) > (unsigned_short_int_Array_0[1][0])) ? ((unsigned_short_int_Array_0[1][1] - unsigned_short_int_Array_0[0][1])) : (unsigned_short_int_Array_0[1][0])))))))) : 1) && ((BOOL_unsigned_char_Array_0[0] || (unsigned_short_int_Array_0[1][1] == unsigned_short_int_Array_0[1][0])) ? ((unsigned_short_int_Array_0[1][1] <= (((((0) < (unsigned_short_int_Array_0[1][2])) ? (0) : (unsigned_short_int_Array_0[1][2]))) << unsigned_short_int_Array_0[1][2])) ? ((BOOL_unsigned_char_Array_0[0] && (unsigned_short_int_Array_0[1][2] == (unsigned_short_int_Array_0[1][1] * unsigned_short_int_Array_0[0][2]))) ? (unsigned_short_int_Array_0[0][0] == ((unsigned short int) unsigned_short_int_Array_0[0][2])) : (unsigned_short_int_Array_0[0][0] == ((unsigned short int) unsigned_short_int_Array_0[0][2]))) : (unsigned_short_int_Array_0[0][0] == ((unsigned short int) 2))) : (unsigned_short_int_Array_0[0][0] == ((unsigned short int) unsigned_short_int_Array_0[1][1])))) && ((unsigned_short_int_Array_0[0][1] != unsigned_short_int_Array_0[1][1]) ? ((unsigned_short_int_Array_0[0][1] <= unsigned_short_int_Array_0[0][0]) ? (float_Array_0[2] == ((float) ((((float_Array_0[0]) > (float_Array_0[1])) ? (float_Array_0[0]) : (float_Array_0[1]))))) : (float_Array_0[2] == ((float) float_Array_0[0]))) : (float_Array_0[2] == ((float) float_Array_0[0]))) ; [L98] RET, EXPR property() [L98] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] [L19] reach_error() VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0__0_=8, last_1_unsigned_short_int_Array_0_1__2_=10, unsigned_short_int_Array_0={6:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 104 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 33.8s, OverallIterations: 20, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 12.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2047 SdHoareTripleChecker+Valid, 9.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2019 mSDsluCounter, 17598 SdHoareTripleChecker+Invalid, 8.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14332 mSDsCounter, 149 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7991 IncrementalHoareTripleChecker+Invalid, 8140 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 149 mSolverCounterUnsat, 3266 mSDtfsCounter, 7991 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 829 GetRequests, 684 SyntacticMatches, 0 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1432occurred in iteration=19, InterpolantAutomatonStates: 150, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 19 MinimizatonAttempts, 1642 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 17.1s InterpolantComputationTime, 2340 NumberOfCodeBlocks, 2340 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 1994 ConstructedInterpolants, 0 QuantifiedInterpolants, 6322 SizeOfPredicates, 3 NumberOfNonLiveVariables, 360 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 PerfectInterpolantSequences, 5016/5016 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 18:34:24,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/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_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/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_6cde399a-0db1-4473-97bb-12de628339ad/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 6c2afc665f9ec9bbf6f489827c9a63486fda067f850cc8b511cbd83d8b773bd8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:34:27,186 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:34:27,278 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-08 18:34:27,286 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:34:27,289 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:34:27,330 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:34:27,331 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:34:27,332 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:34:27,333 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:34:27,334 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:34:27,336 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:34:27,336 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:34:27,337 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:34:27,337 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:34:27,341 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:34:27,342 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:34:27,342 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:34:27,342 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:34:27,343 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:34:27,343 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:34:27,343 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:34:27,344 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:34:27,344 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:34:27,344 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 18:34:27,344 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 18:34:27,345 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:34:27,345 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 18:34:27,345 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:34:27,346 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:34:27,346 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:34:27,346 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:34:27,346 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:34:27,349 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:34:27,350 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:34:27,350 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:34:27,351 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:34:27,351 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:34:27,351 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:34:27,352 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 18:34:27,352 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 18:34:27,353 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:34:27,354 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:34:27,354 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:34:27,354 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:34:27,354 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_6cde399a-0db1-4473-97bb-12de628339ad/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c2afc665f9ec9bbf6f489827c9a63486fda067f850cc8b511cbd83d8b773bd8 [2024-11-08 18:34:27,692 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:34:27,725 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:34:27,728 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:34:27,730 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:34:27,730 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:34:27,732 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-2.i Unable to find full path for "g++" [2024-11-08 18:34:29,834 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:34:30,041 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:34:30,042 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-2.i [2024-11-08 18:34:30,051 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/data/d6eb1ecda/83fa589f3a7446bc991d81a5d056213a/FLAG504e272d5 [2024-11-08 18:34:30,389 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/data/d6eb1ecda/83fa589f3a7446bc991d81a5d056213a [2024-11-08 18:34:30,392 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:34:30,393 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:34:30,395 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:34:30,395 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:34:30,402 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:34:30,403 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:34:30" (1/1) ... [2024-11-08 18:34:30,407 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22026d29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:30, skipping insertion in model container [2024-11-08 18:34:30,407 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:34:30" (1/1) ... [2024-11-08 18:34:30,444 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:34:30,691 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_6cde399a-0db1-4473-97bb-12de628339ad/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-2.i[915,928] [2024-11-08 18:34:30,805 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:34:30,829 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:34:30,842 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_6cde399a-0db1-4473-97bb-12de628339ad/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-2.i[915,928] [2024-11-08 18:34:30,929 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:34:30,961 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:34:30,962 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:30 WrapperNode [2024-11-08 18:34:30,962 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:34:30,963 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:34:30,964 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:34:30,964 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:34:30,971 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:30" (1/1) ... [2024-11-08 18:34:30,995 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:30" (1/1) ... [2024-11-08 18:34:31,053 INFO L138 Inliner]: procedures = 33, calls = 157, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 499 [2024-11-08 18:34:31,054 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:34:31,055 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:34:31,055 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:34:31,055 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:34:31,066 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:30" (1/1) ... [2024-11-08 18:34:31,067 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:30" (1/1) ... [2024-11-08 18:34:31,078 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:30" (1/1) ... [2024-11-08 18:34:31,116 INFO L175 MemorySlicer]: Split 131 memory accesses to 4 slices as follows [2, 8, 31, 90]. 69 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 1, 3, 6]. The 15 writes are split as follows [0, 1, 5, 9]. [2024-11-08 18:34:31,120 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:30" (1/1) ... [2024-11-08 18:34:31,120 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:30" (1/1) ... [2024-11-08 18:34:31,153 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:30" (1/1) ... [2024-11-08 18:34:31,158 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:30" (1/1) ... [2024-11-08 18:34:31,162 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:30" (1/1) ... [2024-11-08 18:34:31,165 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:30" (1/1) ... [2024-11-08 18:34:31,170 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:34:31,171 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:34:31,171 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:34:31,172 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:34:31,173 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:30" (1/1) ... [2024-11-08 18:34:31,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:34:31,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:34:31,207 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:34:31,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:34:31,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:34:31,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-08 18:34:31,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-08 18:34:31,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-08 18:34:31,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-11-08 18:34:31,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#0 [2024-11-08 18:34:31,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#1 [2024-11-08 18:34:31,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#2 [2024-11-08 18:34:31,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#3 [2024-11-08 18:34:31,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 18:34:31,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-08 18:34:31,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-08 18:34:31,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-08 18:34:31,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-08 18:34:31,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-08 18:34:31,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-08 18:34:31,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-08 18:34:31,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2024-11-08 18:34:31,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2024-11-08 18:34:31,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#2 [2024-11-08 18:34:31,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#3 [2024-11-08 18:34:31,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-08 18:34:31,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-08 18:34:31,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-08 18:34:31,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-08 18:34:31,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2024-11-08 18:34:31,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2024-11-08 18:34:31,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2024-11-08 18:34:31,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2024-11-08 18:34:31,245 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 18:34:31,245 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 18:34:31,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:34:31,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:34:31,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-08 18:34:31,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-08 18:34:31,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-11-08 18:34:31,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2024-11-08 18:34:31,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2024-11-08 18:34:31,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2024-11-08 18:34:31,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#2 [2024-11-08 18:34:31,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#3 [2024-11-08 18:34:31,414 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:34:31,416 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:34:32,157 INFO L? ?]: Removed 144 outVars from TransFormulas that were not future-live. [2024-11-08 18:34:32,157 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:34:32,170 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:34:32,171 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 18:34:32,171 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:34:32 BoogieIcfgContainer [2024-11-08 18:34:32,171 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:34:32,173 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:34:32,174 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:34:32,177 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:34:32,177 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:34:30" (1/3) ... [2024-11-08 18:34:32,178 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20531e1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:34:32, skipping insertion in model container [2024-11-08 18:34:32,178 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:30" (2/3) ... [2024-11-08 18:34:32,178 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20531e1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:34:32, skipping insertion in model container [2024-11-08 18:34:32,178 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:34:32" (3/3) ... [2024-11-08 18:34:32,180 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-2.i [2024-11-08 18:34:32,197 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:34:32,197 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 18:34:32,272 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:34:32,278 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;@1e6d8603, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:34:32,279 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 18:34:32,284 INFO L276 IsEmpty]: Start isEmpty. Operand has 100 states, 85 states have (on average 1.4588235294117646) internal successors, (124), 86 states have internal predecessors, (124), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-08 18:34:32,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-08 18:34:32,298 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:34:32,299 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:34:32,299 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:34:32,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:32,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1606850698, now seen corresponding path program 1 times [2024-11-08 18:34:32,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:34:32,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [919599958] [2024-11-08 18:34:32,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:32,325 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 18:34:32,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:34:32,329 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:32,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:32,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:32,680 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 18:34:32,695 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:34:32,740 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 118 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-08 18:34:32,743 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:34:32,744 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:34:32,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [919599958] [2024-11-08 18:34:32,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [919599958] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:34:32,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:34:32,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:34:32,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130542118] [2024-11-08 18:34:32,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:34:32,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 18:34:32,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:34:32,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 18:34:32,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 18:34:32,783 INFO L87 Difference]: Start difference. First operand has 100 states, 85 states have (on average 1.4588235294117646) internal successors, (124), 86 states have internal predecessors, (124), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 18:34:32,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:34:32,815 INFO L93 Difference]: Finished difference Result 193 states and 302 transitions. [2024-11-08 18:34:32,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 18:34:32,818 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 100 [2024-11-08 18:34:32,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:34:32,826 INFO L225 Difference]: With dead ends: 193 [2024-11-08 18:34:32,826 INFO L226 Difference]: Without dead ends: 96 [2024-11-08 18:34:32,830 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 99 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 18:34:32,833 INFO L432 NwaCegarLoop]: 141 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, 141 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 18:34:32,834 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:34:32,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-08 18:34:32,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-11-08 18:34:32,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 82 states have (on average 1.4268292682926829) internal successors, (117), 82 states have internal predecessors, (117), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-08 18:34:32,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 141 transitions. [2024-11-08 18:34:32,897 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 141 transitions. Word has length 100 [2024-11-08 18:34:32,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:34:32,897 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 141 transitions. [2024-11-08 18:34:32,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 18:34:32,898 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 141 transitions. [2024-11-08 18:34:32,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-08 18:34:32,903 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:34:32,904 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:34:32,910 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:33,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:34:33,105 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:34:33,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:33,106 INFO L85 PathProgramCache]: Analyzing trace with hash 620069982, now seen corresponding path program 1 times [2024-11-08 18:34:33,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:34:33,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1532037378] [2024-11-08 18:34:33,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:33,108 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 18:34:33,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:34:33,111 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:33,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:33,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:33,433 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 18:34:33,443 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:34:33,585 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:34:33,586 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 17 [2024-11-08 18:34:34,310 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:34:34,310 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:34:34,310 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:34:34,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1532037378] [2024-11-08 18:34:34,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1532037378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:34:34,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:34:34,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:34:34,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340981322] [2024-11-08 18:34:34,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:34:34,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:34:34,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:34:34,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:34:34,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:34:34,315 INFO L87 Difference]: Start difference. First operand 96 states and 141 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:34:34,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:34:34,838 INFO L93 Difference]: Finished difference Result 283 states and 418 transitions. [2024-11-08 18:34:34,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:34:34,842 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 100 [2024-11-08 18:34:34,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:34:34,844 INFO L225 Difference]: With dead ends: 283 [2024-11-08 18:34:34,845 INFO L226 Difference]: Without dead ends: 190 [2024-11-08 18:34:34,845 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:34:34,849 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 128 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:34:34,851 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 348 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 18:34:34,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-11-08 18:34:34,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 158. [2024-11-08 18:34:34,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 131 states have (on average 1.4045801526717556) internal successors, (184), 131 states have internal predecessors, (184), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-08 18:34:34,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 232 transitions. [2024-11-08 18:34:34,881 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 232 transitions. Word has length 100 [2024-11-08 18:34:34,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:34:34,882 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 232 transitions. [2024-11-08 18:34:34,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:34:34,882 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 232 transitions. [2024-11-08 18:34:34,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-08 18:34:34,885 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:34:34,885 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:34:34,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-08 18:34:35,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:34:35,088 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:34:35,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:35,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1463158389, now seen corresponding path program 1 times [2024-11-08 18:34:35,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:34:35,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1324455773] [2024-11-08 18:34:35,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:35,090 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 18:34:35,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:34:35,097 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:35,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:35,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:35,349 INFO L255 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 18:34:35,353 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:34:35,379 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:34:35,380 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:34:35,380 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:34:35,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1324455773] [2024-11-08 18:34:35,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1324455773] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:34:35,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:34:35,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:34:35,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537097742] [2024-11-08 18:34:35,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:34:35,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:34:35,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:34:35,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:34:35,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:34:35,387 INFO L87 Difference]: Start difference. First operand 158 states and 232 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:34:35,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:34:35,432 INFO L93 Difference]: Finished difference Result 260 states and 384 transitions. [2024-11-08 18:34:35,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:34:35,434 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 106 [2024-11-08 18:34:35,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:34:35,436 INFO L225 Difference]: With dead ends: 260 [2024-11-08 18:34:35,440 INFO L226 Difference]: Without dead ends: 160 [2024-11-08 18:34:35,441 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:34:35,442 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 0 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:34:35,443 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 274 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:34:35,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-11-08 18:34:35,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2024-11-08 18:34:35,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 133 states have (on average 1.3984962406015038) internal successors, (186), 133 states have internal predecessors, (186), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-08 18:34:35,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 234 transitions. [2024-11-08 18:34:35,481 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 234 transitions. Word has length 106 [2024-11-08 18:34:35,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:34:35,481 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 234 transitions. [2024-11-08 18:34:35,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:34:35,482 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 234 transitions. [2024-11-08 18:34:35,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-08 18:34:35,483 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:34:35,484 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:34:35,495 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:35,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:34:35,688 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:34:35,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:35,689 INFO L85 PathProgramCache]: Analyzing trace with hash -125189513, now seen corresponding path program 1 times [2024-11-08 18:34:35,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:34:35,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1740087681] [2024-11-08 18:34:35,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:35,690 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 18:34:35,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:34:35,691 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:35,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:36,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:36,010 INFO L255 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 18:34:36,014 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:34:36,082 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:34:36,083 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 40 treesize of output 16 [2024-11-08 18:34:36,146 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:34:36,147 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:34:36,147 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:34:36,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1740087681] [2024-11-08 18:34:36,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1740087681] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:34:36,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:34:36,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:34:36,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301836596] [2024-11-08 18:34:36,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:34:36,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:34:36,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:34:36,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:34:36,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:34:36,152 INFO L87 Difference]: Start difference. First operand 160 states and 234 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:34:36,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:34:36,778 INFO L93 Difference]: Finished difference Result 317 states and 462 transitions. [2024-11-08 18:34:36,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:34:36,779 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 106 [2024-11-08 18:34:36,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:34:36,782 INFO L225 Difference]: With dead ends: 317 [2024-11-08 18:34:36,782 INFO L226 Difference]: Without dead ends: 223 [2024-11-08 18:34:36,783 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 102 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 18:34:36,784 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 83 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:34:36,784 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 517 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 18:34:36,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-11-08 18:34:36,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 220. [2024-11-08 18:34:36,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 186 states have (on average 1.3978494623655915) internal successors, (260), 187 states have internal predecessors, (260), 30 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-08 18:34:36,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 320 transitions. [2024-11-08 18:34:36,814 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 320 transitions. Word has length 106 [2024-11-08 18:34:36,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:34:36,815 INFO L471 AbstractCegarLoop]: Abstraction has 220 states and 320 transitions. [2024-11-08 18:34:36,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:34:36,815 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 320 transitions. [2024-11-08 18:34:36,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-08 18:34:36,817 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:34:36,818 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:34:36,824 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:37,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:34:37,019 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:34:37,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:37,019 INFO L85 PathProgramCache]: Analyzing trace with hash 575875065, now seen corresponding path program 1 times [2024-11-08 18:34:37,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:34:37,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1029653205] [2024-11-08 18:34:37,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:37,021 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 18:34:37,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:34:37,024 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:37,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:37,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:37,406 INFO L255 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 18:34:37,414 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:34:37,433 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 18:34:37,587 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 34 treesize of output 27 [2024-11-08 18:34:37,665 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:34:37,665 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 44 treesize of output 49 [2024-11-08 18:34:37,893 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:34:37,894 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 61 treesize of output 27 [2024-11-08 18:34:37,982 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-08 18:34:37,982 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:34:37,983 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:34:37,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1029653205] [2024-11-08 18:34:37,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1029653205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:34:37,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:34:37,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 18:34:37,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277171971] [2024-11-08 18:34:37,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:34:37,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:34:37,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:34:37,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:34:37,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:34:37,986 INFO L87 Difference]: Start difference. First operand 220 states and 320 transitions. Second operand has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 18:34:39,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:34:39,891 INFO L93 Difference]: Finished difference Result 684 states and 995 transitions. [2024-11-08 18:34:39,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 18:34:39,893 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 106 [2024-11-08 18:34:39,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:34:39,899 INFO L225 Difference]: With dead ends: 684 [2024-11-08 18:34:39,899 INFO L226 Difference]: Without dead ends: 532 [2024-11-08 18:34:39,900 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2024-11-08 18:34:39,902 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 411 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 803 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:34:39,903 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [411 Valid, 803 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-08 18:34:39,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2024-11-08 18:34:39,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 526. [2024-11-08 18:34:39,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 458 states have (on average 1.4017467248908297) internal successors, (642), 463 states have internal predecessors, (642), 60 states have call successors, (60), 7 states have call predecessors, (60), 7 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-08 18:34:39,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 762 transitions. [2024-11-08 18:34:39,991 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 762 transitions. Word has length 106 [2024-11-08 18:34:39,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:34:39,992 INFO L471 AbstractCegarLoop]: Abstraction has 526 states and 762 transitions. [2024-11-08 18:34:39,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 18:34:39,994 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 762 transitions. [2024-11-08 18:34:39,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-08 18:34:39,995 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:34:39,995 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:34:40,003 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:40,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:34:40,196 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:34:40,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:40,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1872734837, now seen corresponding path program 1 times [2024-11-08 18:34:40,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:34:40,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1415639156] [2024-11-08 18:34:40,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:40,198 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 18:34:40,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:34:40,199 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:40,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:40,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:40,527 INFO L255 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-08 18:34:40,532 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:34:40,540 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 18:34:40,548 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 18:34:40,553 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 18:34:40,622 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 18:34:40,806 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:34:40,806 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 45 treesize of output 50 [2024-11-08 18:34:40,916 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:34:40,916 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 60 treesize of output 62 [2024-11-08 18:34:41,175 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:34:41,175 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 72 treesize of output 32 [2024-11-08 18:34:41,227 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-08 18:34:41,227 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:34:41,227 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:34:41,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1415639156] [2024-11-08 18:34:41,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1415639156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:34:41,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:34:41,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 18:34:41,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373286949] [2024-11-08 18:34:41,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:34:41,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:34:41,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:34:41,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:34:41,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:34:41,231 INFO L87 Difference]: Start difference. First operand 526 states and 762 transitions. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 18:34:43,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:34:43,239 INFO L93 Difference]: Finished difference Result 1240 states and 1791 transitions. [2024-11-08 18:34:43,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 18:34:43,240 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 108 [2024-11-08 18:34:43,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:34:43,245 INFO L225 Difference]: With dead ends: 1240 [2024-11-08 18:34:43,245 INFO L226 Difference]: Without dead ends: 810 [2024-11-08 18:34:43,246 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:34:43,247 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 388 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 801 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:34:43,248 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 801 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-08 18:34:43,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2024-11-08 18:34:43,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 802. [2024-11-08 18:34:43,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 802 states, 713 states have (on average 1.4109396914446002) internal successors, (1006), 722 states have internal predecessors, (1006), 76 states have call successors, (76), 12 states have call predecessors, (76), 12 states have return successors, (76), 67 states have call predecessors, (76), 76 states have call successors, (76) [2024-11-08 18:34:43,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 1158 transitions. [2024-11-08 18:34:43,334 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 1158 transitions. Word has length 108 [2024-11-08 18:34:43,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:34:43,335 INFO L471 AbstractCegarLoop]: Abstraction has 802 states and 1158 transitions. [2024-11-08 18:34:43,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 18:34:43,335 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 1158 transitions. [2024-11-08 18:34:43,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-08 18:34:43,337 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:34:43,337 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:34:43,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:43,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:34:43,538 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:34:43,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:43,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1428032493, now seen corresponding path program 1 times [2024-11-08 18:34:43,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:34:43,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [609171106] [2024-11-08 18:34:43,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:43,540 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 18:34:43,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:34:43,541 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:43,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:43,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:43,833 INFO L255 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 18:34:43,836 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:34:43,920 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:34:43,920 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 26 [2024-11-08 18:34:44,159 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:34:44,160 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:34:44,160 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:34:44,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [609171106] [2024-11-08 18:34:44,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [609171106] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:34:44,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:34:44,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:34:44,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546879648] [2024-11-08 18:34:44,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:34:44,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:34:44,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:34:44,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:34:44,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:34:44,163 INFO L87 Difference]: Start difference. First operand 802 states and 1158 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:34:48,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:34:48,673 INFO L93 Difference]: Finished difference Result 1653 states and 2389 transitions. [2024-11-08 18:34:48,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:34:48,675 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 108 [2024-11-08 18:34:48,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:34:48,679 INFO L225 Difference]: With dead ends: 1653 [2024-11-08 18:34:48,680 INFO L226 Difference]: Without dead ends: 960 [2024-11-08 18:34:48,681 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:34:48,682 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 102 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:34:48,682 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 492 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-08 18:34:48,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2024-11-08 18:34:48,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 952. [2024-11-08 18:34:48,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 952 states, 853 states have (on average 1.4150058616647128) internal successors, (1207), 864 states have internal predecessors, (1207), 84 states have call successors, (84), 14 states have call predecessors, (84), 14 states have return successors, (84), 73 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-08 18:34:48,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 952 states to 952 states and 1375 transitions. [2024-11-08 18:34:48,771 INFO L78 Accepts]: Start accepts. Automaton has 952 states and 1375 transitions. Word has length 108 [2024-11-08 18:34:48,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:34:48,771 INFO L471 AbstractCegarLoop]: Abstraction has 952 states and 1375 transitions. [2024-11-08 18:34:48,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:34:48,772 INFO L276 IsEmpty]: Start isEmpty. Operand 952 states and 1375 transitions. [2024-11-08 18:34:48,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-08 18:34:48,774 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:34:48,775 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:34:48,781 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:48,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:34:48,976 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:34:48,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:48,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1005330667, now seen corresponding path program 1 times [2024-11-08 18:34:48,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:34:48,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [425943415] [2024-11-08 18:34:48,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:48,977 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 18:34:48,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:34:48,981 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:48,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:49,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:49,283 INFO L255 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-08 18:34:49,288 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:34:49,298 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 18:34:49,309 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 18:34:49,423 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-11-08 18:34:49,673 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:34:49,673 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-11-08 18:34:50,139 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:34:50,140 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 56 treesize of output 64 [2024-11-08 18:34:50,332 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:34:50,333 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 71 treesize of output 76 [2024-11-08 18:34:50,761 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:34:50,761 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 83 treesize of output 37 [2024-11-08 18:34:50,856 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-08 18:34:50,857 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:34:50,857 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:34:50,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [425943415] [2024-11-08 18:34:50,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [425943415] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:34:50,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:34:50,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-08 18:34:50,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214901678] [2024-11-08 18:34:50,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:34:50,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 18:34:50,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:34:50,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 18:34:50,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:34:50,860 INFO L87 Difference]: Start difference. First operand 952 states and 1375 transitions. Second operand has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-08 18:34:53,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:34:53,685 INFO L93 Difference]: Finished difference Result 1889 states and 2727 transitions. [2024-11-08 18:34:53,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 18:34:53,687 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 108 [2024-11-08 18:34:53,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:34:53,692 INFO L225 Difference]: With dead ends: 1889 [2024-11-08 18:34:53,692 INFO L226 Difference]: Without dead ends: 1087 [2024-11-08 18:34:53,694 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:34:53,694 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 472 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 472 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:34:53,695 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [472 Valid, 724 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-08 18:34:53,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1087 states. [2024-11-08 18:34:53,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1087 to 974. [2024-11-08 18:34:53,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 974 states, 875 states have (on average 1.4148571428571428) internal successors, (1238), 886 states have internal predecessors, (1238), 84 states have call successors, (84), 14 states have call predecessors, (84), 14 states have return successors, (84), 73 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-08 18:34:53,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 974 states to 974 states and 1406 transitions. [2024-11-08 18:34:53,808 INFO L78 Accepts]: Start accepts. Automaton has 974 states and 1406 transitions. Word has length 108 [2024-11-08 18:34:53,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:34:53,809 INFO L471 AbstractCegarLoop]: Abstraction has 974 states and 1406 transitions. [2024-11-08 18:34:53,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-08 18:34:53,809 INFO L276 IsEmpty]: Start isEmpty. Operand 974 states and 1406 transitions. [2024-11-08 18:34:53,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-08 18:34:53,811 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:34:53,811 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:34:53,822 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-11-08 18:34:54,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:34:54,012 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:34:54,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:54,012 INFO L85 PathProgramCache]: Analyzing trace with hash -616794125, now seen corresponding path program 1 times [2024-11-08 18:34:54,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:34:54,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1411749123] [2024-11-08 18:34:54,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:54,013 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 18:34:54,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:34:54,016 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:54,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:54,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:54,356 INFO L255 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-08 18:34:54,360 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:34:54,374 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 18:34:54,467 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 31 treesize of output 15 [2024-11-08 18:34:54,716 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:34:54,716 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 42 treesize of output 29 [2024-11-08 18:34:55,104 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:34:55,104 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 61 treesize of output 51 [2024-11-08 18:34:55,308 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:34:55,309 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 76 treesize of output 63 [2024-11-08 18:34:55,443 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:34:55,443 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 92 treesize of output 40 [2024-11-08 18:34:55,571 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 143 proven. 18 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-08 18:34:55,572 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:34:55,909 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:34:55,909 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:34:55,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1411749123] [2024-11-08 18:34:55,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1411749123] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:34:55,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:34:55,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [15] total 18 [2024-11-08 18:34:55,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502976355] [2024-11-08 18:34:55,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:34:55,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:34:55,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:34:55,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:34:55,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2024-11-08 18:34:55,911 INFO L87 Difference]: Start difference. First operand 974 states and 1406 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:34:56,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:34:56,706 INFO L93 Difference]: Finished difference Result 1783 states and 2568 transitions. [2024-11-08 18:34:56,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:34:56,707 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 108 [2024-11-08 18:34:56,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:34:56,711 INFO L225 Difference]: With dead ends: 1783 [2024-11-08 18:34:56,711 INFO L226 Difference]: Without dead ends: 962 [2024-11-08 18:34:56,713 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2024-11-08 18:34:56,714 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 106 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:34:56,714 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 526 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 18:34:56,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2024-11-08 18:34:56,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 900. [2024-11-08 18:34:56,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 900 states, 802 states have (on average 1.4064837905236909) internal successors, (1128), 811 states have internal predecessors, (1128), 80 states have call successors, (80), 17 states have call predecessors, (80), 17 states have return successors, (80), 71 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-08 18:34:56,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 900 states and 1288 transitions. [2024-11-08 18:34:56,807 INFO L78 Accepts]: Start accepts. Automaton has 900 states and 1288 transitions. Word has length 108 [2024-11-08 18:34:56,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:34:56,808 INFO L471 AbstractCegarLoop]: Abstraction has 900 states and 1288 transitions. [2024-11-08 18:34:56,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:34:56,808 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 1288 transitions. [2024-11-08 18:34:56,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-08 18:34:56,810 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:34:56,810 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:34:56,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-08 18:34:57,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:34:57,011 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:34:57,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:57,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1347081480, now seen corresponding path program 1 times [2024-11-08 18:34:57,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:34:57,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [900882272] [2024-11-08 18:34:57,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:57,012 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 18:34:57,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:34:57,015 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:57,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:57,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:57,236 INFO L255 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 18:34:57,240 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:34:57,335 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2024-11-08 18:34:57,408 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:34:57,408 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 42 treesize of output 18 [2024-11-08 18:34:57,726 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:34:57,727 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:34:57,727 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:34:57,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [900882272] [2024-11-08 18:34:57,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [900882272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:34:57,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:34:57,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:34:57,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457666519] [2024-11-08 18:34:57,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:34:57,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:34:57,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:34:57,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:34:57,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:34:57,729 INFO L87 Difference]: Start difference. First operand 900 states and 1288 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:35:00,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 18:35:03,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 18:35:07,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.79s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 18:35:12,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 18:35:16,273 WARN L539 Checker$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 18:35:20,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 18:35:23,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 18:35:27,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 18:35:32,496 WARN L539 Checker$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 18:35:36,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 18:35:37,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 18:35:40,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 18:35:42,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 18:35:42,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:35:42,940 INFO L93 Difference]: Finished difference Result 1679 states and 2403 transitions. [2024-11-08 18:35:42,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:35:42,941 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 109 [2024-11-08 18:35:42,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:35:42,946 INFO L225 Difference]: With dead ends: 1679 [2024-11-08 18:35:42,946 INFO L226 Difference]: Without dead ends: 923 [2024-11-08 18:35:42,948 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:35:42,948 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 111 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 7 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:35:42,949 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 627 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 286 Invalid, 7 Unknown, 0 Unchecked, 45.1s Time] [2024-11-08 18:35:42,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2024-11-08 18:35:43,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 920. [2024-11-08 18:35:43,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 814 states have (on average 1.398034398034398) internal successors, (1138), 823 states have internal predecessors, (1138), 86 states have call successors, (86), 19 states have call predecessors, (86), 19 states have return successors, (86), 77 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-08 18:35:43,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1310 transitions. [2024-11-08 18:35:43,044 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1310 transitions. Word has length 109 [2024-11-08 18:35:43,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:35:43,045 INFO L471 AbstractCegarLoop]: Abstraction has 920 states and 1310 transitions. [2024-11-08 18:35:43,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:35:43,045 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1310 transitions. [2024-11-08 18:35:43,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-08 18:35:43,047 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:35:43,047 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:35:43,058 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Ended with exit code 0 [2024-11-08 18:35:43,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:35:43,248 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:35:43,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:35:43,249 INFO L85 PathProgramCache]: Analyzing trace with hash -953741110, now seen corresponding path program 1 times [2024-11-08 18:35:43,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:35:43,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [270616739] [2024-11-08 18:35:43,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:35:43,249 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 18:35:43,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:35:43,251 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:35:43,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:35:43,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:35:43,548 INFO L255 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 18:35:43,552 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:35:43,562 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 18:35:43,587 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 23 [2024-11-08 18:35:43,667 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:35:43,668 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 35 treesize of output 26 [2024-11-08 18:35:43,771 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:35:43,771 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 41 treesize of output 17 [2024-11-08 18:35:43,907 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:35:43,907 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:35:43,907 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:35:43,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [270616739] [2024-11-08 18:35:43,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [270616739] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:35:43,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:35:43,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:35:43,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119199917] [2024-11-08 18:35:43,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:35:43,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:35:43,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:35:43,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:35:43,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:35:43,909 INFO L87 Difference]: Start difference. First operand 920 states and 1310 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:35:45,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:35:45,530 INFO L93 Difference]: Finished difference Result 1695 states and 2417 transitions. [2024-11-08 18:35:45,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 18:35:45,531 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 109 [2024-11-08 18:35:45,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:35:45,535 INFO L225 Difference]: With dead ends: 1695 [2024-11-08 18:35:45,536 INFO L226 Difference]: Without dead ends: 932 [2024-11-08 18:35:45,537 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:35:45,538 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 106 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 911 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:35:45,539 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 911 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-08 18:35:45,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 932 states. [2024-11-08 18:35:45,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 932 to 923. [2024-11-08 18:35:45,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 923 states, 817 states have (on average 1.3965728274173808) internal successors, (1141), 826 states have internal predecessors, (1141), 86 states have call successors, (86), 19 states have call predecessors, (86), 19 states have return successors, (86), 77 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-08 18:35:45,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1313 transitions. [2024-11-08 18:35:45,635 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1313 transitions. Word has length 109 [2024-11-08 18:35:45,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:35:45,635 INFO L471 AbstractCegarLoop]: Abstraction has 923 states and 1313 transitions. [2024-11-08 18:35:45,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:35:45,636 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1313 transitions. [2024-11-08 18:35:45,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-08 18:35:45,637 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:35:45,638 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:35:45,645 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:35:45,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:35:45,838 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:35:45,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:35:45,839 INFO L85 PathProgramCache]: Analyzing trace with hash -201381313, now seen corresponding path program 1 times [2024-11-08 18:35:45,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:35:45,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [239620843] [2024-11-08 18:35:45,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:35:45,839 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 18:35:45,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:35:45,840 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:35:45,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:35:46,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:35:46,157 INFO L255 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-08 18:35:46,161 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:35:46,168 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 18:35:46,264 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-11-08 18:35:46,464 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:35:46,464 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 18:35:46,742 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:35:46,743 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 37 treesize of output 39 [2024-11-08 18:35:46,894 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:35:46,894 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 52 treesize of output 51 [2024-11-08 18:35:47,527 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:35:47,528 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 111 treesize of output 51 [2024-11-08 18:35:47,686 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 137 proven. 12 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2024-11-08 18:35:47,686 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:35:48,168 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:35:48,168 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:35:48,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [239620843] [2024-11-08 18:35:48,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [239620843] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:35:48,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:35:48,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [14] total 18 [2024-11-08 18:35:48,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387436757] [2024-11-08 18:35:48,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:35:48,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:35:48,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:35:48,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:35:48,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2024-11-08 18:35:48,171 INFO L87 Difference]: Start difference. First operand 923 states and 1313 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:35:49,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:35:49,526 INFO L93 Difference]: Finished difference Result 1964 states and 2799 transitions. [2024-11-08 18:35:49,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:35:49,527 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 109 [2024-11-08 18:35:49,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:35:49,532 INFO L225 Difference]: With dead ends: 1964 [2024-11-08 18:35:49,533 INFO L226 Difference]: Without dead ends: 1198 [2024-11-08 18:35:49,535 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2024-11-08 18:35:49,535 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 131 mSDsluCounter, 700 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:35:49,536 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 854 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 18:35:49,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1198 states. [2024-11-08 18:35:49,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 1193. [2024-11-08 18:35:49,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1193 states, 1061 states have (on average 1.3911404335532516) internal successors, (1476), 1074 states have internal predecessors, (1476), 108 states have call successors, (108), 23 states have call predecessors, (108), 23 states have return successors, (108), 95 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-08 18:35:49,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1193 states to 1193 states and 1692 transitions. [2024-11-08 18:35:49,657 INFO L78 Accepts]: Start accepts. Automaton has 1193 states and 1692 transitions. Word has length 109 [2024-11-08 18:35:49,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:35:49,657 INFO L471 AbstractCegarLoop]: Abstraction has 1193 states and 1692 transitions. [2024-11-08 18:35:49,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:35:49,658 INFO L276 IsEmpty]: Start isEmpty. Operand 1193 states and 1692 transitions. [2024-11-08 18:35:49,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-08 18:35:49,659 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:35:49,659 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:35:49,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-08 18:35:49,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:35:49,861 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:35:49,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:35:49,862 INFO L85 PathProgramCache]: Analyzing trace with hash 348532538, now seen corresponding path program 1 times [2024-11-08 18:35:49,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:35:49,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [381670054] [2024-11-08 18:35:49,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:35:49,863 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 18:35:49,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:35:49,866 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:35:49,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:35:50,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:35:50,158 INFO L255 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 18:35:50,161 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:35:50,377 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:35:50,378 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 98 treesize of output 44 [2024-11-08 18:35:50,502 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:35:50,502 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:35:50,503 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:35:50,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [381670054] [2024-11-08 18:35:50,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [381670054] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:35:50,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:35:50,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:35:50,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063613681] [2024-11-08 18:35:50,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:35:50,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:35:50,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:35:50,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:35:50,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:35:50,505 INFO L87 Difference]: Start difference. First operand 1193 states and 1692 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:35:52,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:35:52,256 INFO L93 Difference]: Finished difference Result 2884 states and 4100 transitions. [2024-11-08 18:35:52,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:35:52,257 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 109 [2024-11-08 18:35:52,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:35:52,267 INFO L225 Difference]: With dead ends: 2884 [2024-11-08 18:35:52,267 INFO L226 Difference]: Without dead ends: 1855 [2024-11-08 18:35:52,269 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:35:52,271 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 87 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:35:52,271 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 682 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-08 18:35:52,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1855 states. [2024-11-08 18:35:52,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1855 to 1253. [2024-11-08 18:35:52,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1253 states, 1121 states have (on average 1.392506690454951) internal successors, (1561), 1134 states have internal predecessors, (1561), 108 states have call successors, (108), 23 states have call predecessors, (108), 23 states have return successors, (108), 95 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-08 18:35:52,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1253 states to 1253 states and 1777 transitions. [2024-11-08 18:35:52,414 INFO L78 Accepts]: Start accepts. Automaton has 1253 states and 1777 transitions. Word has length 109 [2024-11-08 18:35:52,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:35:52,418 INFO L471 AbstractCegarLoop]: Abstraction has 1253 states and 1777 transitions. [2024-11-08 18:35:52,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:35:52,418 INFO L276 IsEmpty]: Start isEmpty. Operand 1253 states and 1777 transitions. [2024-11-08 18:35:52,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-08 18:35:52,420 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:35:52,420 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:35:52,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-08 18:35:52,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:35:52,622 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:35:52,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:35:52,622 INFO L85 PathProgramCache]: Analyzing trace with hash -352532040, now seen corresponding path program 1 times [2024-11-08 18:35:52,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:35:52,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2068905163] [2024-11-08 18:35:52,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:35:52,623 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 18:35:52,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:35:52,631 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:35:52,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:35:53,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:35:53,118 INFO L255 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-08 18:35:53,123 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:35:53,130 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 18:35:53,241 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 31 treesize of output 15 [2024-11-08 18:35:53,496 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:35:53,496 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 37 treesize of output 39 [2024-11-08 18:35:53,855 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:35:53,856 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 48 treesize of output 53 [2024-11-08 18:35:54,012 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:35:54,012 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 63 treesize of output 65 [2024-11-08 18:35:54,213 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:35:54,214 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 77 treesize of output 33 [2024-11-08 18:35:54,331 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 151 proven. 18 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-11-08 18:35:54,332 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:35:55,434 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 42 proven. 21 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2024-11-08 18:35:55,434 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:35:55,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2068905163] [2024-11-08 18:35:55,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2068905163] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:35:55,435 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:35:55,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 23 [2024-11-08 18:35:55,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820575145] [2024-11-08 18:35:55,435 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:35:55,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-08 18:35:55,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:35:55,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-08 18:35:55,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=390, Unknown=0, NotChecked=0, Total=506 [2024-11-08 18:35:55,437 INFO L87 Difference]: Start difference. First operand 1253 states and 1777 transitions. Second operand has 23 states, 19 states have (on average 4.578947368421052) internal successors, (87), 22 states have internal predecessors, (87), 8 states have call successors, (17), 4 states have call predecessors, (17), 7 states have return successors, (17), 5 states have call predecessors, (17), 8 states have call successors, (17) [2024-11-08 18:35:59,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:35:59,353 INFO L93 Difference]: Finished difference Result 2564 states and 3576 transitions. [2024-11-08 18:35:59,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-08 18:35:59,354 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 19 states have (on average 4.578947368421052) internal successors, (87), 22 states have internal predecessors, (87), 8 states have call successors, (17), 4 states have call predecessors, (17), 7 states have return successors, (17), 5 states have call predecessors, (17), 8 states have call successors, (17) Word has length 109 [2024-11-08 18:35:59,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:35:59,364 INFO L225 Difference]: With dead ends: 2564 [2024-11-08 18:35:59,364 INFO L226 Difference]: Without dead ends: 1483 [2024-11-08 18:35:59,367 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 195 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 362 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=467, Invalid=1339, Unknown=0, NotChecked=0, Total=1806 [2024-11-08 18:35:59,368 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 722 mSDsluCounter, 695 mSDsCounter, 0 mSdLazyCounter, 765 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 804 SdHoareTripleChecker+Invalid, 847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:35:59,368 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [742 Valid, 804 Invalid, 847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 765 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-08 18:35:59,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1483 states. [2024-11-08 18:35:59,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1483 to 657. [2024-11-08 18:35:59,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 602 states have (on average 1.393687707641196) internal successors, (839), 605 states have internal predecessors, (839), 40 states have call successors, (40), 14 states have call predecessors, (40), 14 states have return successors, (40), 37 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-08 18:35:59,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 919 transitions. [2024-11-08 18:35:59,465 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 919 transitions. Word has length 109 [2024-11-08 18:35:59,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:35:59,466 INFO L471 AbstractCegarLoop]: Abstraction has 657 states and 919 transitions. [2024-11-08 18:35:59,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 19 states have (on average 4.578947368421052) internal successors, (87), 22 states have internal predecessors, (87), 8 states have call successors, (17), 4 states have call predecessors, (17), 7 states have return successors, (17), 5 states have call predecessors, (17), 8 states have call successors, (17) [2024-11-08 18:35:59,467 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 919 transitions. [2024-11-08 18:35:59,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-08 18:35:59,469 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:35:59,469 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:35:59,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:35:59,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:35:59,673 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:35:59,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:35:59,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1542518127, now seen corresponding path program 1 times [2024-11-08 18:35:59,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:35:59,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [738283929] [2024-11-08 18:35:59,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:35:59,674 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 18:35:59,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:35:59,675 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:35:59,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:35:59,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:35:59,996 INFO L255 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-08 18:36:00,000 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:36:00,006 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 18:36:00,084 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-11-08 18:36:00,248 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:36:00,248 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 35 treesize of output 37 [2024-11-08 18:36:00,490 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:36:00,490 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 50 treesize of output 40 [2024-11-08 18:36:00,904 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:36:00,904 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 53 [2024-11-08 18:36:01,065 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:36:01,066 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 69 treesize of output 65 [2024-11-08 18:36:01,512 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:36:01,513 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 81 treesize of output 35 [2024-11-08 18:36:01,781 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-08 18:36:01,781 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:36:01,781 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:36:01,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [738283929] [2024-11-08 18:36:01,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [738283929] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:36:01,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:36:01,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-08 18:36:01,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647834015] [2024-11-08 18:36:01,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:36:01,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 18:36:01,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:36:01,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 18:36:01,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2024-11-08 18:36:01,784 INFO L87 Difference]: Start difference. First operand 657 states and 919 transitions. Second operand has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 14 states have internal predecessors, (62), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-08 18:36:05,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:36:05,761 INFO L93 Difference]: Finished difference Result 1476 states and 2079 transitions. [2024-11-08 18:36:05,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-08 18:36:05,762 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 14 states have internal predecessors, (62), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 110 [2024-11-08 18:36:05,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:36:05,766 INFO L225 Difference]: With dead ends: 1476 [2024-11-08 18:36:05,767 INFO L226 Difference]: Without dead ends: 1003 [2024-11-08 18:36:05,768 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=112, Invalid=350, Unknown=0, NotChecked=0, Total=462 [2024-11-08 18:36:05,769 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 311 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 885 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 1223 SdHoareTripleChecker+Invalid, 897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:36:05,769 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 1223 Invalid, 897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 885 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-08 18:36:05,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2024-11-08 18:36:05,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 714. [2024-11-08 18:36:05,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 714 states, 659 states have (on average 1.3960546282245827) internal successors, (920), 662 states have internal predecessors, (920), 40 states have call successors, (40), 14 states have call predecessors, (40), 14 states have return successors, (40), 37 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-08 18:36:05,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 714 states to 714 states and 1000 transitions. [2024-11-08 18:36:05,859 INFO L78 Accepts]: Start accepts. Automaton has 714 states and 1000 transitions. Word has length 110 [2024-11-08 18:36:05,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:36:05,859 INFO L471 AbstractCegarLoop]: Abstraction has 714 states and 1000 transitions. [2024-11-08 18:36:05,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 14 states have internal predecessors, (62), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-08 18:36:05,860 INFO L276 IsEmpty]: Start isEmpty. Operand 714 states and 1000 transitions. [2024-11-08 18:36:05,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-08 18:36:05,861 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:36:05,862 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:36:05,869 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2024-11-08 18:36:06,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:36:06,062 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:36:06,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:36:06,063 INFO L85 PathProgramCache]: Analyzing trace with hash 2051384591, now seen corresponding path program 1 times [2024-11-08 18:36:06,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:36:06,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [463764834] [2024-11-08 18:36:06,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:36:06,063 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 18:36:06,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:36:06,064 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:36:06,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:36:06,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:36:06,319 INFO L255 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 18:36:06,322 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:36:06,409 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:36:06,410 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 62 treesize of output 26 [2024-11-08 18:36:06,490 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:36:06,490 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:36:06,491 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:36:06,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [463764834] [2024-11-08 18:36:06,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [463764834] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:36:06,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:36:06,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:36:06,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865545547] [2024-11-08 18:36:06,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:36:06,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:36:06,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:36:06,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:36:06,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:36:06,493 INFO L87 Difference]: Start difference. First operand 714 states and 1000 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:36:12,611 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 18:36:13,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:36:13,067 INFO L93 Difference]: Finished difference Result 1475 states and 2090 transitions. [2024-11-08 18:36:13,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:36:13,069 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 110 [2024-11-08 18:36:13,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:36:13,072 INFO L225 Difference]: With dead ends: 1475 [2024-11-08 18:36:13,073 INFO L226 Difference]: Without dead ends: 970 [2024-11-08 18:36:13,074 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 106 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 18:36:13,074 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 74 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:36:13,075 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 517 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2024-11-08 18:36:13,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2024-11-08 18:36:13,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 777. [2024-11-08 18:36:13,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 777 states, 717 states have (on average 1.400278940027894) internal successors, (1004), 721 states have internal predecessors, (1004), 44 states have call successors, (44), 15 states have call predecessors, (44), 15 states have return successors, (44), 40 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-08 18:36:13,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 1092 transitions. [2024-11-08 18:36:13,176 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 1092 transitions. Word has length 110 [2024-11-08 18:36:13,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:36:13,177 INFO L471 AbstractCegarLoop]: Abstraction has 777 states and 1092 transitions. [2024-11-08 18:36:13,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:36:13,177 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 1092 transitions. [2024-11-08 18:36:13,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 18:36:13,179 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:36:13,179 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:36:13,186 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2024-11-08 18:36:13,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:36:13,380 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:36:13,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:36:13,381 INFO L85 PathProgramCache]: Analyzing trace with hash 790405894, now seen corresponding path program 1 times [2024-11-08 18:36:13,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:36:13,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [290282362] [2024-11-08 18:36:13,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:36:13,382 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:36:13,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:36:13,384 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:36:13,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:36:13,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:36:13,703 INFO L255 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-08 18:36:13,707 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:36:13,715 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 18:36:13,828 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-11-08 18:36:14,045 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:36:14,045 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 35 treesize of output 37 [2024-11-08 18:36:14,304 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:36:14,304 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 50 treesize of output 40 [2024-11-08 18:36:14,852 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:36:14,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 65 treesize of output 67 [2024-11-08 18:36:15,141 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:36:15,141 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 76 treesize of output 70 [2024-11-08 18:36:15,465 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:36:15,465 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 82 treesize of output 34 [2024-11-08 18:36:15,537 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-08 18:36:15,537 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:36:15,537 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:36:15,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [290282362] [2024-11-08 18:36:15,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [290282362] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:36:15,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:36:15,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-08 18:36:15,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143522245] [2024-11-08 18:36:15,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:36:15,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 18:36:15,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:36:15,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 18:36:15,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:36:15,539 INFO L87 Difference]: Start difference. First operand 777 states and 1092 transitions. Second operand has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-08 18:36:17,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:36:17,568 INFO L93 Difference]: Finished difference Result 1412 states and 2002 transitions. [2024-11-08 18:36:17,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:36:17,569 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 111 [2024-11-08 18:36:17,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:36:17,573 INFO L225 Difference]: With dead ends: 1412 [2024-11-08 18:36:17,573 INFO L226 Difference]: Without dead ends: 844 [2024-11-08 18:36:17,574 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 100 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:36:17,575 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 378 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:36:17,575 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 460 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-08 18:36:17,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2024-11-08 18:36:17,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 777. [2024-11-08 18:36:17,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 777 states, 717 states have (on average 1.398884239888424) internal successors, (1003), 721 states have internal predecessors, (1003), 44 states have call successors, (44), 15 states have call predecessors, (44), 15 states have return successors, (44), 40 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-08 18:36:17,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 1091 transitions. [2024-11-08 18:36:17,683 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 1091 transitions. Word has length 111 [2024-11-08 18:36:17,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:36:17,684 INFO L471 AbstractCegarLoop]: Abstraction has 777 states and 1091 transitions. [2024-11-08 18:36:17,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-08 18:36:17,684 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 1091 transitions. [2024-11-08 18:36:17,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 18:36:17,686 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:36:17,686 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:36:17,694 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:36:17,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:36:17,887 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:36:17,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:36:17,887 INFO L85 PathProgramCache]: Analyzing trace with hash 630877514, now seen corresponding path program 1 times [2024-11-08 18:36:17,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:36:17,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [529449634] [2024-11-08 18:36:17,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:36:17,888 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 18:36:17,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:36:17,891 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:36:17,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:36:18,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:36:18,286 INFO L255 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-08 18:36:18,291 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:36:18,426 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 18:36:18,846 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 32 [2024-11-08 18:36:19,795 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 65 [2024-11-08 18:36:20,117 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:36:20,118 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 194 treesize of output 80 [2024-11-08 18:36:20,372 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-08 18:36:20,372 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:36:20,937 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:36:20,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [529449634] [2024-11-08 18:36:20,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [529449634] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:36:20,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1143577850] [2024-11-08 18:36:20,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:36:20,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:36:20,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:36:20,939 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:36:20,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-08 18:36:21,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:36:21,200 INFO L255 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-08 18:36:21,203 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:36:21,633 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 32 [2024-11-08 18:36:22,528 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 65 [2024-11-08 18:36:22,880 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:36:22,881 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 194 treesize of output 80 [2024-11-08 18:36:22,937 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-11-08 18:36:22,937 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:36:23,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1143577850] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:36:23,248 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:36:23,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13] total 13 [2024-11-08 18:36:23,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029848806] [2024-11-08 18:36:23,249 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:36:23,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 18:36:23,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:36:23,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 18:36:23,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2024-11-08 18:36:23,251 INFO L87 Difference]: Start difference. First operand 777 states and 1091 transitions. Second operand has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 13 states have internal predecessors, (60), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 18:36:26,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:36:26,414 INFO L93 Difference]: Finished difference Result 1746 states and 2410 transitions. [2024-11-08 18:36:26,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-08 18:36:26,415 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 13 states have internal predecessors, (60), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 111 [2024-11-08 18:36:26,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:36:26,420 INFO L225 Difference]: With dead ends: 1746 [2024-11-08 18:36:26,420 INFO L226 Difference]: Without dead ends: 1744 [2024-11-08 18:36:26,421 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 262 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=191, Invalid=999, Unknown=0, NotChecked=0, Total=1190 [2024-11-08 18:36:26,421 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 420 mSDsluCounter, 1142 mSDsCounter, 0 mSdLazyCounter, 636 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 1258 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:36:26,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [430 Valid, 1258 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 636 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-08 18:36:26,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1744 states. [2024-11-08 18:36:26,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1744 to 1682. [2024-11-08 18:36:26,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1682 states, 1556 states have (on average 1.3894601542416452) internal successors, (2162), 1572 states have internal predecessors, (2162), 92 states have call successors, (92), 33 states have call predecessors, (92), 33 states have return successors, (92), 76 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-08 18:36:26,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1682 states to 1682 states and 2346 transitions. [2024-11-08 18:36:26,628 INFO L78 Accepts]: Start accepts. Automaton has 1682 states and 2346 transitions. Word has length 111 [2024-11-08 18:36:26,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:36:26,629 INFO L471 AbstractCegarLoop]: Abstraction has 1682 states and 2346 transitions. [2024-11-08 18:36:26,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 13 states have internal predecessors, (60), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 18:36:26,629 INFO L276 IsEmpty]: Start isEmpty. Operand 1682 states and 2346 transitions. [2024-11-08 18:36:26,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 18:36:26,632 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:36:26,632 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:36:26,641 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:36:26,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-08 18:36:27,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:36:27,033 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:36:27,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:36:27,034 INFO L85 PathProgramCache]: Analyzing trace with hash 800813407, now seen corresponding path program 1 times [2024-11-08 18:36:27,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:36:27,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1943076234] [2024-11-08 18:36:27,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:36:27,034 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 18:36:27,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:36:27,035 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:36:27,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:36:27,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:36:27,329 INFO L255 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-08 18:36:27,331 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:36:27,440 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:36:27,440 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 85 treesize of output 37 [2024-11-08 18:36:27,527 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:36:27,528 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:36:27,528 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:36:27,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1943076234] [2024-11-08 18:36:27,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1943076234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:36:27,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:36:27,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:36:27,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276806152] [2024-11-08 18:36:27,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:36:27,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:36:27,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:36:27,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:36:27,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:36:27,530 INFO L87 Difference]: Start difference. First operand 1682 states and 2346 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:36:28,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:36:28,196 INFO L93 Difference]: Finished difference Result 2958 states and 4162 transitions. [2024-11-08 18:36:28,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:36:28,198 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 111 [2024-11-08 18:36:28,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:36:28,204 INFO L225 Difference]: With dead ends: 2958 [2024-11-08 18:36:28,204 INFO L226 Difference]: Without dead ends: 1682 [2024-11-08 18:36:28,206 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:36:28,207 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 0 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:36:28,207 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 453 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 18:36:28,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1682 states. [2024-11-08 18:36:28,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1682 to 1653. [2024-11-08 18:36:28,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1653 states, 1527 states have (on average 1.3785199738048461) internal successors, (2105), 1543 states have internal predecessors, (2105), 92 states have call successors, (92), 33 states have call predecessors, (92), 33 states have return successors, (92), 76 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-08 18:36:28,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1653 states to 1653 states and 2289 transitions. [2024-11-08 18:36:28,467 INFO L78 Accepts]: Start accepts. Automaton has 1653 states and 2289 transitions. Word has length 111 [2024-11-08 18:36:28,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:36:28,467 INFO L471 AbstractCegarLoop]: Abstraction has 1653 states and 2289 transitions. [2024-11-08 18:36:28,468 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:36:28,469 INFO L276 IsEmpty]: Start isEmpty. Operand 1653 states and 2289 transitions. [2024-11-08 18:36:28,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 18:36:28,471 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:36:28,471 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:36:28,480 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:36:28,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:36:28,672 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:36:28,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:36:28,673 INFO L85 PathProgramCache]: Analyzing trace with hash 99748829, now seen corresponding path program 1 times [2024-11-08 18:36:28,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:36:28,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [911791206] [2024-11-08 18:36:28,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:36:28,674 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 18:36:28,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:36:28,677 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:36:28,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:36:29,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:36:29,241 INFO L255 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-08 18:36:29,246 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:36:29,256 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 18:36:29,263 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 18:36:29,387 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 26 treesize of output 25 [2024-11-08 18:36:29,889 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:36:29,889 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 47 treesize of output 43 [2024-11-08 18:36:30,683 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:36:30,684 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 89 treesize of output 79 [2024-11-08 18:36:30,977 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:36:30,978 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 88 treesize of output 87 [2024-11-08 18:36:31,977 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 151 proven. 18 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-11-08 18:36:31,977 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:36:33,216 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:36:33,217 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:36:33,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [911791206] [2024-11-08 18:36:33,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [911791206] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:36:33,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:36:33,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [17] total 22 [2024-11-08 18:36:33,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791134356] [2024-11-08 18:36:33,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:36:33,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:36:33,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:36:33,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:36:33,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2024-11-08 18:36:33,219 INFO L87 Difference]: Start difference. First operand 1653 states and 2289 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:36:35,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:36:35,358 INFO L93 Difference]: Finished difference Result 3047 states and 4244 transitions. [2024-11-08 18:36:35,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:36:35,359 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 111 [2024-11-08 18:36:35,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:36:35,364 INFO L225 Difference]: With dead ends: 3047 [2024-11-08 18:36:35,364 INFO L226 Difference]: Without dead ends: 1785 [2024-11-08 18:36:35,366 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=108, Invalid=398, Unknown=0, NotChecked=0, Total=506 [2024-11-08 18:36:35,366 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 175 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-08 18:36:35,367 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 550 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-08 18:36:35,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1785 states. [2024-11-08 18:36:35,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1785 to 1776. [2024-11-08 18:36:35,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1776 states, 1639 states have (on average 1.37339841366687) internal successors, (2251), 1658 states have internal predecessors, (2251), 100 states have call successors, (100), 36 states have call predecessors, (100), 36 states have return successors, (100), 81 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-08 18:36:35,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1776 states to 1776 states and 2451 transitions. [2024-11-08 18:36:35,693 INFO L78 Accepts]: Start accepts. Automaton has 1776 states and 2451 transitions. Word has length 111 [2024-11-08 18:36:35,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:36:35,693 INFO L471 AbstractCegarLoop]: Abstraction has 1776 states and 2451 transitions. [2024-11-08 18:36:35,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:36:35,693 INFO L276 IsEmpty]: Start isEmpty. Operand 1776 states and 2451 transitions. [2024-11-08 18:36:35,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 18:36:35,696 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:36:35,697 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:36:35,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-08 18:36:35,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:36:35,901 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:36:35,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:36:35,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1446545300, now seen corresponding path program 1 times [2024-11-08 18:36:35,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:36:35,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1903158205] [2024-11-08 18:36:35,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:36:35,903 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:36:35,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:36:35,906 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:36:35,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:36:36,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:36:36,349 INFO L255 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-08 18:36:36,353 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:36:36,361 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 18:36:36,544 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:36:36,544 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 40 [2024-11-08 18:36:36,819 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:36:36,819 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 67 treesize of output 49 [2024-11-08 18:36:36,951 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:36:36,951 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 62 treesize of output 26 [2024-11-08 18:36:37,106 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:36:37,106 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:36:37,107 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:36:37,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1903158205] [2024-11-08 18:36:37,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1903158205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:36:37,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:36:37,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 18:36:37,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951376415] [2024-11-08 18:36:37,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:36:37,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 18:36:37,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:36:37,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 18:36:37,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:36:37,109 INFO L87 Difference]: Start difference. First operand 1776 states and 2451 transitions. Second operand has 12 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:36:40,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:36:40,184 INFO L93 Difference]: Finished difference Result 3620 states and 5009 transitions. [2024-11-08 18:36:40,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 18:36:40,185 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 111 [2024-11-08 18:36:40,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:36:40,194 INFO L225 Difference]: With dead ends: 3620 [2024-11-08 18:36:40,195 INFO L226 Difference]: Without dead ends: 2246 [2024-11-08 18:36:40,196 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 99 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-11-08 18:36:40,197 INFO L432 NwaCegarLoop]: 277 mSDtfsCounter, 204 mSDsluCounter, 1457 mSDsCounter, 0 mSdLazyCounter, 908 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 1734 SdHoareTripleChecker+Invalid, 919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:36:40,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 1734 Invalid, 919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 908 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-08 18:36:40,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2246 states. [2024-11-08 18:36:40,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2246 to 1956. [2024-11-08 18:36:40,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1956 states, 1808 states have (on average 1.3761061946902655) internal successors, (2488), 1830 states have internal predecessors, (2488), 108 states have call successors, (108), 39 states have call predecessors, (108), 39 states have return successors, (108), 86 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-08 18:36:40,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1956 states to 1956 states and 2704 transitions. [2024-11-08 18:36:40,517 INFO L78 Accepts]: Start accepts. Automaton has 1956 states and 2704 transitions. Word has length 111 [2024-11-08 18:36:40,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:36:40,517 INFO L471 AbstractCegarLoop]: Abstraction has 1956 states and 2704 transitions. [2024-11-08 18:36:40,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:36:40,518 INFO L276 IsEmpty]: Start isEmpty. Operand 1956 states and 2704 transitions. [2024-11-08 18:36:40,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 18:36:40,522 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:36:40,522 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:36:40,529 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:36:40,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:36:40,723 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:36:40,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:36:40,723 INFO L85 PathProgramCache]: Analyzing trace with hash 547599406, now seen corresponding path program 1 times [2024-11-08 18:36:40,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:36:40,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1410448136] [2024-11-08 18:36:40,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:36:40,724 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:36:40,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:36:40,725 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:36:40,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:36:41,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:36:41,045 INFO L255 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-08 18:36:41,051 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:36:41,058 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 18:36:41,064 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 18:36:41,141 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-11-08 18:36:41,285 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:36:41,285 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-11-08 18:36:41,630 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:36:41,630 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 56 treesize of output 64 [2024-11-08 18:36:41,860 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:36:41,860 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 67 treesize of output 67 [2024-11-08 18:36:42,064 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:36:42,064 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 73 treesize of output 31 [2024-11-08 18:36:42,131 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-08 18:36:42,131 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:36:42,131 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:36:42,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1410448136] [2024-11-08 18:36:42,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1410448136] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:36:42,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:36:42,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 18:36:42,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772317069] [2024-11-08 18:36:42,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:36:42,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:36:42,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:36:42,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:36:42,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:36:42,133 INFO L87 Difference]: Start difference. First operand 1956 states and 2704 transitions. Second operand has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-08 18:36:44,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:36:44,984 INFO L93 Difference]: Finished difference Result 3592 states and 4993 transitions. [2024-11-08 18:36:44,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:36:44,985 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 111 [2024-11-08 18:36:44,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:36:44,992 INFO L225 Difference]: With dead ends: 3592 [2024-11-08 18:36:44,993 INFO L226 Difference]: Without dead ends: 2068 [2024-11-08 18:36:44,995 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:36:44,995 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 206 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 771 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:36:44,996 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 771 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-08 18:36:44,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2068 states. [2024-11-08 18:36:45,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2068 to 1936. [2024-11-08 18:36:45,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1936 states, 1788 states have (on average 1.3736017897091723) internal successors, (2456), 1810 states have internal predecessors, (2456), 108 states have call successors, (108), 39 states have call predecessors, (108), 39 states have return successors, (108), 86 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-08 18:36:45,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1936 states to 1936 states and 2672 transitions. [2024-11-08 18:36:45,279 INFO L78 Accepts]: Start accepts. Automaton has 1936 states and 2672 transitions. Word has length 111 [2024-11-08 18:36:45,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:36:45,280 INFO L471 AbstractCegarLoop]: Abstraction has 1936 states and 2672 transitions. [2024-11-08 18:36:45,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-08 18:36:45,280 INFO L276 IsEmpty]: Start isEmpty. Operand 1936 states and 2672 transitions. [2024-11-08 18:36:45,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 18:36:45,283 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:36:45,283 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:36:45,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2024-11-08 18:36:45,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:36:45,484 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:36:45,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:36:45,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1088142137, now seen corresponding path program 1 times [2024-11-08 18:36:45,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:36:45,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [78234395] [2024-11-08 18:36:45,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:36:45,485 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 18:36:45,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:36:45,486 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:36:45,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:36:45,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:36:45,923 INFO L255 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-08 18:36:45,928 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:36:45,935 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 18:36:45,941 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 18:36:46,054 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 31 treesize of output 15 [2024-11-08 18:36:46,395 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:36:46,395 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 42 treesize of output 29 [2024-11-08 18:36:46,810 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:36:46,810 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 69 treesize of output 62 [2024-11-08 18:36:47,013 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:36:47,013 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 84 treesize of output 74 [2024-11-08 18:36:47,537 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 143 proven. 18 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-08 18:36:47,537 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:36:48,046 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:36:48,046 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:36:48,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [78234395] [2024-11-08 18:36:48,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [78234395] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:36:48,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:36:48,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [15] total 18 [2024-11-08 18:36:48,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470880596] [2024-11-08 18:36:48,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:36:48,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:36:48,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:36:48,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:36:48,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2024-11-08 18:36:48,048 INFO L87 Difference]: Start difference. First operand 1936 states and 2672 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:36:49,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:36:49,174 INFO L93 Difference]: Finished difference Result 3438 states and 4773 transitions. [2024-11-08 18:36:49,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:36:49,175 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 111 [2024-11-08 18:36:49,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:36:49,182 INFO L225 Difference]: With dead ends: 3438 [2024-11-08 18:36:49,182 INFO L226 Difference]: Without dead ends: 1926 [2024-11-08 18:36:49,184 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2024-11-08 18:36:49,185 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 89 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 18:36:49,185 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 472 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 18:36:49,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1926 states. [2024-11-08 18:36:49,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1926 to 1887. [2024-11-08 18:36:49,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1887 states, 1739 states have (on average 1.371477860839563) internal successors, (2385), 1761 states have internal predecessors, (2385), 108 states have call successors, (108), 39 states have call predecessors, (108), 39 states have return successors, (108), 86 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-08 18:36:49,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1887 states to 1887 states and 2601 transitions. [2024-11-08 18:36:49,433 INFO L78 Accepts]: Start accepts. Automaton has 1887 states and 2601 transitions. Word has length 111 [2024-11-08 18:36:49,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:36:49,433 INFO L471 AbstractCegarLoop]: Abstraction has 1887 states and 2601 transitions. [2024-11-08 18:36:49,434 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:36:49,434 INFO L276 IsEmpty]: Start isEmpty. Operand 1887 states and 2601 transitions. [2024-11-08 18:36:49,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 18:36:49,436 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:36:49,437 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:36:49,444 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Ended with exit code 0 [2024-11-08 18:36:49,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:36:49,637 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:36:49,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:36:49,638 INFO L85 PathProgramCache]: Analyzing trace with hash 37709215, now seen corresponding path program 1 times [2024-11-08 18:36:49,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:36:49,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [653908254] [2024-11-08 18:36:49,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:36:49,638 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 18:36:49,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:36:49,639 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:36:49,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2024-11-08 18:36:50,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:36:50,038 INFO L255 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-08 18:36:50,043 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:36:50,048 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-08 18:36:50,128 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 18:36:50,195 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 18:36:50,418 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:36:50,418 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 56 treesize of output 55 [2024-11-08 18:36:50,585 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:36:50,585 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 66 treesize of output 68 [2024-11-08 18:36:51,147 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:36:51,148 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 117 treesize of output 53 [2024-11-08 18:36:51,246 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-08 18:36:51,246 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:36:51,246 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:36:51,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [653908254] [2024-11-08 18:36:51,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [653908254] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:36:51,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:36:51,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 18:36:51,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537810123] [2024-11-08 18:36:51,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:36:51,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:36:51,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:36:51,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:36:51,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:36:51,249 INFO L87 Difference]: Start difference. First operand 1887 states and 2601 transitions. Second operand has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 18:36:54,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:36:54,996 INFO L93 Difference]: Finished difference Result 3876 states and 5360 transitions. [2024-11-08 18:36:54,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 18:36:54,997 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 111 [2024-11-08 18:36:54,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:36:55,005 INFO L225 Difference]: With dead ends: 3876 [2024-11-08 18:36:55,006 INFO L226 Difference]: Without dead ends: 2399 [2024-11-08 18:36:55,008 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:36:55,008 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 374 mSDsluCounter, 675 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:36:55,009 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 841 Invalid, 662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-08 18:36:55,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2399 states. [2024-11-08 18:36:55,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2399 to 1887. [2024-11-08 18:36:55,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1887 states, 1739 states have (on average 1.3703277745830937) internal successors, (2383), 1761 states have internal predecessors, (2383), 108 states have call successors, (108), 39 states have call predecessors, (108), 39 states have return successors, (108), 86 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-08 18:36:55,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1887 states to 1887 states and 2599 transitions. [2024-11-08 18:36:55,348 INFO L78 Accepts]: Start accepts. Automaton has 1887 states and 2599 transitions. Word has length 111 [2024-11-08 18:36:55,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:36:55,351 INFO L471 AbstractCegarLoop]: Abstraction has 1887 states and 2599 transitions. [2024-11-08 18:36:55,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 18:36:55,352 INFO L276 IsEmpty]: Start isEmpty. Operand 1887 states and 2599 transitions. [2024-11-08 18:36:55,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 18:36:55,354 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:36:55,354 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:36:55,363 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Ended with exit code 0 [2024-11-08 18:36:55,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:36:55,554 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:36:55,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:36:55,555 INFO L85 PathProgramCache]: Analyzing trace with hash 151967779, now seen corresponding path program 1 times [2024-11-08 18:36:55,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:36:55,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2021366942] [2024-11-08 18:36:55,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:36:55,555 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 18:36:55,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:36:55,558 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:36:55,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:36:55,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:36:55,892 INFO L255 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-08 18:36:55,896 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:36:55,901 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 18:36:55,906 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 18:36:55,911 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 18:36:55,996 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-11-08 18:36:56,410 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:36:56,410 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 66 treesize of output 68 [2024-11-08 18:36:56,610 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:36:56,611 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 76 treesize of output 81 [2024-11-08 18:36:57,079 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:36:57,080 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 97 treesize of output 45 [2024-11-08 18:36:57,211 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-08 18:36:57,211 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:36:57,211 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:36:57,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2021366942] [2024-11-08 18:36:57,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2021366942] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:36:57,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:36:57,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:36:57,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719320054] [2024-11-08 18:36:57,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:36:57,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:36:57,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:36:57,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:36:57,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:36:57,214 INFO L87 Difference]: Start difference. First operand 1887 states and 2599 transitions. Second operand has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-08 18:37:01,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:37:01,048 INFO L93 Difference]: Finished difference Result 3866 states and 5352 transitions. [2024-11-08 18:37:01,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:37:01,049 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 111 [2024-11-08 18:37:01,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:37:01,056 INFO L225 Difference]: With dead ends: 3866 [2024-11-08 18:37:01,057 INFO L226 Difference]: Without dead ends: 2382 [2024-11-08 18:37:01,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:37:01,059 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 464 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:37:01,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [464 Valid, 652 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-08 18:37:01,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2382 states. [2024-11-08 18:37:01,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2382 to 1776. [2024-11-08 18:37:01,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1776 states, 1628 states have (on average 1.366093366093366) internal successors, (2224), 1650 states have internal predecessors, (2224), 108 states have call successors, (108), 39 states have call predecessors, (108), 39 states have return successors, (108), 86 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-08 18:37:01,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1776 states to 1776 states and 2440 transitions. [2024-11-08 18:37:01,455 INFO L78 Accepts]: Start accepts. Automaton has 1776 states and 2440 transitions. Word has length 111 [2024-11-08 18:37:01,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:37:01,456 INFO L471 AbstractCegarLoop]: Abstraction has 1776 states and 2440 transitions. [2024-11-08 18:37:01,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-08 18:37:01,456 INFO L276 IsEmpty]: Start isEmpty. Operand 1776 states and 2440 transitions. [2024-11-08 18:37:01,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 18:37:01,458 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:37:01,458 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:37:01,466 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:37:01,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:37:01,659 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:37:01,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:37:01,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1016168245, now seen corresponding path program 1 times [2024-11-08 18:37:01,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:37:01,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [547444114] [2024-11-08 18:37:01,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:37:01,660 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 18:37:01,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:37:01,661 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:37:01,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:37:02,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:37:02,032 INFO L255 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-08 18:37:02,036 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:37:02,047 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 14 treesize of output 10 [2024-11-08 18:37:02,149 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-11-08 18:37:02,308 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:37:02,308 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 35 treesize of output 37 [2024-11-08 18:37:02,847 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:37:02,847 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 77 treesize of output 64 [2024-11-08 18:37:03,075 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:37:03,075 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 82 treesize of output 78 [2024-11-08 18:37:03,856 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:37:03,856 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 89 treesize of output 37 [2024-11-08 18:37:03,963 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-08 18:37:03,963 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:37:03,963 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:37:03,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [547444114] [2024-11-08 18:37:03,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [547444114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:37:03,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:37:03,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 18:37:03,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660820934] [2024-11-08 18:37:03,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:37:03,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 18:37:03,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:37:03,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 18:37:03,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:37:03,965 INFO L87 Difference]: Start difference. First operand 1776 states and 2440 transitions. Second operand has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-08 18:37:08,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:37:08,639 INFO L93 Difference]: Finished difference Result 3480 states and 4787 transitions. [2024-11-08 18:37:08,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 18:37:08,640 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 111 [2024-11-08 18:37:08,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:37:08,645 INFO L225 Difference]: With dead ends: 3480 [2024-11-08 18:37:08,645 INFO L226 Difference]: Without dead ends: 2062 [2024-11-08 18:37:08,647 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:37:08,647 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 631 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 631 SdHoareTripleChecker+Valid, 675 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:37:08,648 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [631 Valid, 675 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-08 18:37:08,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2062 states. [2024-11-08 18:37:08,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2062 to 1791. [2024-11-08 18:37:08,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1791 states, 1643 states have (on average 1.3633597078514912) internal successors, (2240), 1665 states have internal predecessors, (2240), 108 states have call successors, (108), 39 states have call predecessors, (108), 39 states have return successors, (108), 86 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-08 18:37:08,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1791 states to 1791 states and 2456 transitions. [2024-11-08 18:37:08,940 INFO L78 Accepts]: Start accepts. Automaton has 1791 states and 2456 transitions. Word has length 111 [2024-11-08 18:37:08,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:37:08,940 INFO L471 AbstractCegarLoop]: Abstraction has 1791 states and 2456 transitions. [2024-11-08 18:37:08,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-08 18:37:08,940 INFO L276 IsEmpty]: Start isEmpty. Operand 1791 states and 2456 transitions. [2024-11-08 18:37:08,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 18:37:08,942 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:37:08,942 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:37:08,950 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:37:09,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:37:09,143 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:37:09,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:37:09,143 INFO L85 PathProgramCache]: Analyzing trace with hash -315103667, now seen corresponding path program 1 times [2024-11-08 18:37:09,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:37:09,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [196218917] [2024-11-08 18:37:09,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:37:09,144 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 18:37:09,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:37:09,145 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:37:09,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:37:09,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:37:09,528 INFO L255 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-08 18:37:09,532 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:37:09,537 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 18:37:09,541 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 18:37:09,624 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 18:37:09,696 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 18:37:09,966 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:37:09,967 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 56 treesize of output 55 [2024-11-08 18:37:10,113 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:37:10,114 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 71 treesize of output 67 [2024-11-08 18:37:10,388 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:37:10,389 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 97 treesize of output 39 [2024-11-08 18:37:10,486 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-08 18:37:10,486 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:37:10,486 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:37:10,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [196218917] [2024-11-08 18:37:10,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [196218917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:37:10,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:37:10,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:37:10,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263200712] [2024-11-08 18:37:10,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:37:10,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:37:10,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:37:10,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:37:10,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:37:10,488 INFO L87 Difference]: Start difference. First operand 1791 states and 2456 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 18:37:13,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:37:13,775 INFO L93 Difference]: Finished difference Result 3594 states and 4948 transitions. [2024-11-08 18:37:13,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:37:13,776 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 111 [2024-11-08 18:37:13,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:37:13,782 INFO L225 Difference]: With dead ends: 3594 [2024-11-08 18:37:13,782 INFO L226 Difference]: Without dead ends: 2161 [2024-11-08 18:37:13,783 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:37:13,784 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 378 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:37:13,784 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 672 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-08 18:37:13,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2161 states. [2024-11-08 18:37:14,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2161 to 1900. [2024-11-08 18:37:14,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1900 states, 1752 states have (on average 1.3641552511415524) internal successors, (2390), 1774 states have internal predecessors, (2390), 108 states have call successors, (108), 39 states have call predecessors, (108), 39 states have return successors, (108), 86 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-08 18:37:14,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1900 states to 1900 states and 2606 transitions. [2024-11-08 18:37:14,045 INFO L78 Accepts]: Start accepts. Automaton has 1900 states and 2606 transitions. Word has length 111 [2024-11-08 18:37:14,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:37:14,045 INFO L471 AbstractCegarLoop]: Abstraction has 1900 states and 2606 transitions. [2024-11-08 18:37:14,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 18:37:14,045 INFO L276 IsEmpty]: Start isEmpty. Operand 1900 states and 2606 transitions. [2024-11-08 18:37:14,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 18:37:14,046 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:37:14,046 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:37:14,055 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:37:14,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:37:14,247 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:37:14,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:37:14,247 INFO L85 PathProgramCache]: Analyzing trace with hash -449117173, now seen corresponding path program 1 times [2024-11-08 18:37:14,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:37:14,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [970201980] [2024-11-08 18:37:14,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:37:14,248 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 18:37:14,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:37:14,249 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:37:14,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:37:14,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:37:14,526 INFO L255 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 18:37:14,528 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:37:14,633 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:37:14,634 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 61 treesize of output 25 [2024-11-08 18:37:14,712 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:37:14,712 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:37:14,712 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:37:14,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [970201980] [2024-11-08 18:37:14,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [970201980] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:37:14,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:37:14,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:37:14,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448364566] [2024-11-08 18:37:14,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:37:14,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:37:14,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:37:14,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:37:14,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:37:14,714 INFO L87 Difference]: Start difference. First operand 1900 states and 2606 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:37:16,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:37:16,941 INFO L93 Difference]: Finished difference Result 3620 states and 4979 transitions. [2024-11-08 18:37:16,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:37:16,942 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 111 [2024-11-08 18:37:16,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:37:16,947 INFO L225 Difference]: With dead ends: 3620 [2024-11-08 18:37:16,947 INFO L226 Difference]: Without dead ends: 2078 [2024-11-08 18:37:16,949 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:37:16,949 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 102 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-08 18:37:16,949 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 555 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-08 18:37:16,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2078 states. [2024-11-08 18:37:17,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2078 to 1786. [2024-11-08 18:37:17,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1786 states, 1638 states have (on average 1.358974358974359) internal successors, (2226), 1660 states have internal predecessors, (2226), 108 states have call successors, (108), 39 states have call predecessors, (108), 39 states have return successors, (108), 86 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-08 18:37:17,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1786 states to 1786 states and 2442 transitions. [2024-11-08 18:37:17,209 INFO L78 Accepts]: Start accepts. Automaton has 1786 states and 2442 transitions. Word has length 111 [2024-11-08 18:37:17,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:37:17,209 INFO L471 AbstractCegarLoop]: Abstraction has 1786 states and 2442 transitions. [2024-11-08 18:37:17,209 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:37:17,210 INFO L276 IsEmpty]: Start isEmpty. Operand 1786 states and 2442 transitions. [2024-11-08 18:37:17,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 18:37:17,211 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:37:17,211 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:37:17,219 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Ended with exit code 0 [2024-11-08 18:37:17,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:37:17,412 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:37:17,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:37:17,412 INFO L85 PathProgramCache]: Analyzing trace with hash -988097400, now seen corresponding path program 1 times [2024-11-08 18:37:17,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:37:17,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [394542681] [2024-11-08 18:37:17,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:37:17,413 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:37:17,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:37:17,414 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:37:17,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:37:17,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:37:17,684 INFO L255 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:37:17,685 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:37:17,707 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-08 18:37:17,707 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:37:17,708 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:37:17,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [394542681] [2024-11-08 18:37:17,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [394542681] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:37:17,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:37:17,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:37:17,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737042602] [2024-11-08 18:37:17,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:37:17,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:37:17,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:37:17,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:37:17,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:37:17,710 INFO L87 Difference]: Start difference. First operand 1786 states and 2442 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 18:37:18,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:37:18,002 INFO L93 Difference]: Finished difference Result 3381 states and 4633 transitions. [2024-11-08 18:37:18,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:37:18,002 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 111 [2024-11-08 18:37:18,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:37:18,005 INFO L225 Difference]: With dead ends: 3381 [2024-11-08 18:37:18,006 INFO L226 Difference]: Without dead ends: 1786 [2024-11-08 18:37:18,007 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 108 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 18:37:18,008 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 0 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 409 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 18:37:18,008 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 409 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:37:18,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2024-11-08 18:37:18,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1786. [2024-11-08 18:37:18,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1786 states, 1638 states have (on average 1.3540903540903542) internal successors, (2218), 1660 states have internal predecessors, (2218), 108 states have call successors, (108), 39 states have call predecessors, (108), 39 states have return successors, (108), 86 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-08 18:37:18,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1786 states to 1786 states and 2434 transitions. [2024-11-08 18:37:18,273 INFO L78 Accepts]: Start accepts. Automaton has 1786 states and 2434 transitions. Word has length 111 [2024-11-08 18:37:18,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:37:18,274 INFO L471 AbstractCegarLoop]: Abstraction has 1786 states and 2434 transitions. [2024-11-08 18:37:18,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 18:37:18,274 INFO L276 IsEmpty]: Start isEmpty. Operand 1786 states and 2434 transitions. [2024-11-08 18:37:18,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-08 18:37:18,275 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:37:18,275 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:37:18,282 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:37:18,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:37:18,476 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:37:18,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:37:18,477 INFO L85 PathProgramCache]: Analyzing trace with hash 606159822, now seen corresponding path program 1 times [2024-11-08 18:37:18,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:37:18,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [858653061] [2024-11-08 18:37:18,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:37:18,477 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 18:37:18,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:37:18,478 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:37:18,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Waiting until timeout for monitored process [2024-11-08 18:37:18,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:37:18,763 INFO L255 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 18:37:18,765 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:37:19,442 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 53 proven. 30 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-11-08 18:37:19,442 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:37:19,685 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:37:19,685 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:37:19,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [858653061] [2024-11-08 18:37:19,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [858653061] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:37:19,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:37:19,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2024-11-08 18:37:19,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238391391] [2024-11-08 18:37:19,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:37:19,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:37:19,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:37:19,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:37:19,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:37:19,687 INFO L87 Difference]: Start difference. First operand 1786 states and 2434 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:37:20,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:37:20,131 INFO L93 Difference]: Finished difference Result 4092 states and 5669 transitions. [2024-11-08 18:37:20,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:37:20,131 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 112 [2024-11-08 18:37:20,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:37:20,139 INFO L225 Difference]: With dead ends: 4092 [2024-11-08 18:37:20,139 INFO L226 Difference]: Without dead ends: 2664 [2024-11-08 18:37:20,142 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:37:20,143 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 55 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:37:20,143 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 613 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:37:20,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2664 states. [2024-11-08 18:37:20,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2664 to 2264. [2024-11-08 18:37:20,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2264 states, 2116 states have (on average 1.3648393194706994) internal successors, (2888), 2138 states have internal predecessors, (2888), 108 states have call successors, (108), 39 states have call predecessors, (108), 39 states have return successors, (108), 86 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-08 18:37:20,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2264 states to 2264 states and 3104 transitions. [2024-11-08 18:37:20,589 INFO L78 Accepts]: Start accepts. Automaton has 2264 states and 3104 transitions. Word has length 112 [2024-11-08 18:37:20,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:37:20,589 INFO L471 AbstractCegarLoop]: Abstraction has 2264 states and 3104 transitions. [2024-11-08 18:37:20,589 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:37:20,590 INFO L276 IsEmpty]: Start isEmpty. Operand 2264 states and 3104 transitions. [2024-11-08 18:37:20,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-08 18:37:20,591 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:37:20,592 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:37:20,600 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Ended with exit code 0 [2024-11-08 18:37:20,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:37:20,792 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:37:20,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:37:20,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1199278512, now seen corresponding path program 1 times [2024-11-08 18:37:20,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:37:20,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1072454400] [2024-11-08 18:37:20,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:37:20,793 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 18:37:20,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:37:20,794 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:37:20,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:37:21,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:37:21,149 INFO L255 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-08 18:37:21,153 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:37:21,160 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 18:37:21,251 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 26 treesize of output 25 [2024-11-08 18:37:21,739 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:37:21,740 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 47 treesize of output 43 [2024-11-08 18:37:22,286 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:37:22,286 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 57 [2024-11-08 18:37:23,037 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:37:23,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 88 treesize of output 76 [2024-11-08 18:37:24,121 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 151 proven. 18 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-11-08 18:37:24,122 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:37:24,702 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:37:24,702 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:37:24,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1072454400] [2024-11-08 18:37:24,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1072454400] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:37:24,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:37:24,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [18] total 22 [2024-11-08 18:37:24,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421343457] [2024-11-08 18:37:24,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:37:24,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:37:24,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:37:24,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:37:24,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=364, Unknown=0, NotChecked=0, Total=462 [2024-11-08 18:37:24,704 INFO L87 Difference]: Start difference. First operand 2264 states and 3104 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:37:26,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:37:26,580 INFO L93 Difference]: Finished difference Result 5306 states and 7253 transitions. [2024-11-08 18:37:26,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:37:26,580 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 112 [2024-11-08 18:37:26,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:37:26,588 INFO L225 Difference]: With dead ends: 5306 [2024-11-08 18:37:26,589 INFO L226 Difference]: Without dead ends: 3524 [2024-11-08 18:37:26,591 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 201 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=121, Invalid=479, Unknown=0, NotChecked=0, Total=600 [2024-11-08 18:37:26,592 INFO L432 NwaCegarLoop]: 226 mSDtfsCounter, 179 mSDsluCounter, 574 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 800 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:37:26,592 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 800 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 18:37:26,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3524 states. [2024-11-08 18:37:27,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3524 to 2308. [2024-11-08 18:37:27,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2308 states, 2160 states have (on average 1.3592592592592592) internal successors, (2936), 2182 states have internal predecessors, (2936), 108 states have call successors, (108), 39 states have call predecessors, (108), 39 states have return successors, (108), 86 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-08 18:37:27,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2308 states to 2308 states and 3152 transitions. [2024-11-08 18:37:27,092 INFO L78 Accepts]: Start accepts. Automaton has 2308 states and 3152 transitions. Word has length 112 [2024-11-08 18:37:27,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:37:27,092 INFO L471 AbstractCegarLoop]: Abstraction has 2308 states and 3152 transitions. [2024-11-08 18:37:27,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:37:27,092 INFO L276 IsEmpty]: Start isEmpty. Operand 2308 states and 3152 transitions. [2024-11-08 18:37:27,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-08 18:37:27,094 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:37:27,094 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:37:27,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-08 18:37:27,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:37:27,296 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:37:27,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:37:27,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1045517113, now seen corresponding path program 1 times [2024-11-08 18:37:27,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:37:27,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [356863404] [2024-11-08 18:37:27,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:37:27,297 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 18:37:27,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:37:27,300 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:37:27,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:37:27,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:37:27,614 INFO L255 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-08 18:37:27,616 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:37:27,805 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:37:27,805 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 77 treesize of output 64 [2024-11-08 18:37:27,983 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:37:27,984 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 83 treesize of output 35 [2024-11-08 18:37:28,110 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:37:28,110 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:37:28,111 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:37:28,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [356863404] [2024-11-08 18:37:28,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [356863404] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:37:28,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:37:28,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:37:28,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195093398] [2024-11-08 18:37:28,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:37:28,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:37:28,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:37:28,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:37:28,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:37:28,113 INFO L87 Difference]: Start difference. First operand 2308 states and 3152 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:37:31,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 18:37:35,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 18:37:39,374 WARN L539 Checker$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 18:37:41,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 18:37:44,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 18:37:48,408 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 18:37:49,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:37:49,448 INFO L93 Difference]: Finished difference Result 4340 states and 5931 transitions. [2024-11-08 18:37:49,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:37:49,450 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 112 [2024-11-08 18:37:49,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:37:49,457 INFO L225 Difference]: With dead ends: 4340 [2024-11-08 18:37:49,457 INFO L226 Difference]: Without dead ends: 2478 [2024-11-08 18:37:49,461 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:37:49,462 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 98 mSDsluCounter, 738 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:37:49,463 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 945 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 413 Invalid, 2 Unknown, 0 Unchecked, 20.8s Time] [2024-11-08 18:37:49,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2478 states. [2024-11-08 18:37:49,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2478 to 2259. [2024-11-08 18:37:49,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2259 states, 2111 states have (on average 1.3619137849360492) internal successors, (2875), 2133 states have internal predecessors, (2875), 108 states have call successors, (108), 39 states have call predecessors, (108), 39 states have return successors, (108), 86 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-08 18:37:49,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2259 states to 2259 states and 3091 transitions. [2024-11-08 18:37:49,972 INFO L78 Accepts]: Start accepts. Automaton has 2259 states and 3091 transitions. Word has length 112 [2024-11-08 18:37:49,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:37:49,973 INFO L471 AbstractCegarLoop]: Abstraction has 2259 states and 3091 transitions. [2024-11-08 18:37:49,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:37:49,973 INFO L276 IsEmpty]: Start isEmpty. Operand 2259 states and 3091 transitions. [2024-11-08 18:37:49,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-08 18:37:49,975 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:37:49,975 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:37:49,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:37:50,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:37:50,176 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:37:50,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:37:50,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1468218939, now seen corresponding path program 1 times [2024-11-08 18:37:50,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:37:50,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1618471400] [2024-11-08 18:37:50,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:37:50,177 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 18:37:50,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:37:50,180 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:37:50,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:37:50,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:37:50,610 INFO L255 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-08 18:37:50,614 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:37:50,619 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 18:37:50,713 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-11-08 18:37:50,930 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:37:50,931 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 35 treesize of output 37 [2024-11-08 18:37:51,627 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:37:51,627 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 99 treesize of output 74 [2024-11-08 18:37:52,041 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:37:52,042 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 110 treesize of output 77 [2024-11-08 18:37:52,637 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:37:52,638 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 127 treesize of output 55 [2024-11-08 18:37:52,861 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-08 18:37:52,861 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:37:52,861 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:37:52,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1618471400] [2024-11-08 18:37:52,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1618471400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:37:52,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:37:52,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-08 18:37:52,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204796075] [2024-11-08 18:37:52,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:37:52,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 18:37:52,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:37:52,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 18:37:52,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:37:52,863 INFO L87 Difference]: Start difference. First operand 2259 states and 3091 transitions. Second operand has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-08 18:38:01,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 18:38:02,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:38:02,388 INFO L93 Difference]: Finished difference Result 4215 states and 5764 transitions. [2024-11-08 18:38:02,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:38:02,393 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), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 112 [2024-11-08 18:38:02,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:38:02,399 INFO L225 Difference]: With dead ends: 4215 [2024-11-08 18:38:02,400 INFO L226 Difference]: Without dead ends: 2450 [2024-11-08 18:38:02,402 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 101 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:38:02,403 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 383 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:38:02,403 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 714 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 9.0s Time] [2024-11-08 18:38:02,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2450 states. [2024-11-08 18:38:02,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2450 to 2253. [2024-11-08 18:38:02,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2253 states, 2105 states have (on average 1.3600950118764845) internal successors, (2863), 2127 states have internal predecessors, (2863), 108 states have call successors, (108), 39 states have call predecessors, (108), 39 states have return successors, (108), 86 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-08 18:38:02,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2253 states to 2253 states and 3079 transitions. [2024-11-08 18:38:02,890 INFO L78 Accepts]: Start accepts. Automaton has 2253 states and 3079 transitions. Word has length 112 [2024-11-08 18:38:02,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:38:02,891 INFO L471 AbstractCegarLoop]: Abstraction has 2253 states and 3079 transitions. [2024-11-08 18:38:02,891 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), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-08 18:38:02,891 INFO L276 IsEmpty]: Start isEmpty. Operand 2253 states and 3079 transitions. [2024-11-08 18:38:02,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-08 18:38:02,893 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:38:02,893 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:38:02,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2024-11-08 18:38:03,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:38:03,094 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:38:03,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:38:03,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1317084263, now seen corresponding path program 1 times [2024-11-08 18:38:03,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:38:03,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [651809520] [2024-11-08 18:38:03,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:38:03,095 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 18:38:03,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:38:03,098 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:38:03,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:38:03,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:38:03,485 INFO L255 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-08 18:38:03,488 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:38:03,874 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:38:03,875 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 82 treesize of output 60 [2024-11-08 18:38:04,126 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:38:04,126 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 88 treesize of output 40 [2024-11-08 18:38:04,335 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:38:04,335 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:38:04,335 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:38:04,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [651809520] [2024-11-08 18:38:04,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [651809520] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:38:04,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:38:04,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:38:04,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611732874] [2024-11-08 18:38:04,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:38:04,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:38:04,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:38:04,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:38:04,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:38:04,338 INFO L87 Difference]: Start difference. First operand 2253 states and 3079 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:38:06,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 18:38:10,577 WARN L539 Checker$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 18:38:14,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 18:38:17,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 18:38:24,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 18:38:28,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 18:38:28,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:38:28,824 INFO L93 Difference]: Finished difference Result 4249 states and 5810 transitions. [2024-11-08 18:38:28,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:38:28,826 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 112 [2024-11-08 18:38:28,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:38:28,833 INFO L225 Difference]: With dead ends: 4249 [2024-11-08 18:38:28,833 INFO L226 Difference]: Without dead ends: 2442 [2024-11-08 18:38:28,835 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:38:28,836 INFO L432 NwaCegarLoop]: 209 mSDtfsCounter, 97 mSDsluCounter, 888 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 1097 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.9s IncrementalHoareTripleChecker+Time [2024-11-08 18:38:28,836 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 1097 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 510 Invalid, 3 Unknown, 0 Unchecked, 23.9s Time] [2024-11-08 18:38:28,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2442 states. [2024-11-08 18:38:29,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2442 to 2253. [2024-11-08 18:38:29,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2253 states, 2105 states have (on average 1.3562945368171022) internal successors, (2855), 2127 states have internal predecessors, (2855), 108 states have call successors, (108), 39 states have call predecessors, (108), 39 states have return successors, (108), 86 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-08 18:38:29,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2253 states to 2253 states and 3071 transitions. [2024-11-08 18:38:29,366 INFO L78 Accepts]: Start accepts. Automaton has 2253 states and 3071 transitions. Word has length 112 [2024-11-08 18:38:29,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:38:29,367 INFO L471 AbstractCegarLoop]: Abstraction has 2253 states and 3071 transitions. [2024-11-08 18:38:29,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:38:29,367 INFO L276 IsEmpty]: Start isEmpty. Operand 2253 states and 3071 transitions. [2024-11-08 18:38:29,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-08 18:38:29,369 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:38:29,369 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:38:29,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-08 18:38:29,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:38:29,570 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:38:29,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:38:29,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1288939291, now seen corresponding path program 1 times [2024-11-08 18:38:29,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:38:29,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [501810815] [2024-11-08 18:38:29,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:38:29,571 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 18:38:29,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:38:29,576 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:38:29,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:38:30,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:38:30,160 INFO L255 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-08 18:38:30,164 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:38:30,176 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 18:38:30,184 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 18:38:30,194 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 19 treesize of output 1 [2024-11-08 18:38:30,518 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:38:30,518 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 70 treesize of output 63 [2024-11-08 18:38:30,815 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:38:30,815 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 81 treesize of output 66 [2024-11-08 18:38:31,094 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:38:31,095 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 98 treesize of output 44 [2024-11-08 18:38:31,228 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:38:31,228 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:38:31,228 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:38:31,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [501810815] [2024-11-08 18:38:31,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [501810815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:38:31,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:38:31,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:38:31,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778509030] [2024-11-08 18:38:31,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:38:31,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:38:31,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:38:31,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:38:31,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:38:31,230 INFO L87 Difference]: Start difference. First operand 2253 states and 3071 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:38:35,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:38:35,237 INFO L93 Difference]: Finished difference Result 4201 states and 5730 transitions. [2024-11-08 18:38:35,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:38:35,238 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 112 [2024-11-08 18:38:35,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:38:35,244 INFO L225 Difference]: With dead ends: 4201 [2024-11-08 18:38:35,244 INFO L226 Difference]: Without dead ends: 2442 [2024-11-08 18:38:35,246 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:38:35,247 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 91 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 824 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:38:35,247 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 824 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-08 18:38:35,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2442 states. [2024-11-08 18:38:35,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2442 to 2253. [2024-11-08 18:38:35,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2253 states, 2105 states have (on average 1.3534441805225652) internal successors, (2849), 2127 states have internal predecessors, (2849), 108 states have call successors, (108), 39 states have call predecessors, (108), 39 states have return successors, (108), 86 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-08 18:38:35,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2253 states to 2253 states and 3065 transitions. [2024-11-08 18:38:35,862 INFO L78 Accepts]: Start accepts. Automaton has 2253 states and 3065 transitions. Word has length 112 [2024-11-08 18:38:35,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:38:35,863 INFO L471 AbstractCegarLoop]: Abstraction has 2253 states and 3065 transitions. [2024-11-08 18:38:35,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:38:35,864 INFO L276 IsEmpty]: Start isEmpty. Operand 2253 states and 3065 transitions. [2024-11-08 18:38:35,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-08 18:38:35,866 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:38:35,866 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:38:35,876 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Ended with exit code 0 [2024-11-08 18:38:36,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:38:36,067 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:38:36,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:38:36,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1597934008, now seen corresponding path program 1 times [2024-11-08 18:38:36,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:38:36,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1187476411] [2024-11-08 18:38:36,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:38:36,068 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 18:38:36,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:38:36,069 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:38:36,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:38:36,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:38:36,414 INFO L255 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 18:38:36,416 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:38:36,571 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:38:36,571 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 40 treesize of output 16 [2024-11-08 18:38:36,632 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:38:36,633 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:38:36,633 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:38:36,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1187476411] [2024-11-08 18:38:36,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1187476411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:38:36,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:38:36,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:38:36,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748453484] [2024-11-08 18:38:36,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:38:36,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:38:36,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:38:36,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:38:36,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:38:36,635 INFO L87 Difference]: Start difference. First operand 2253 states and 3065 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:38:38,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:38:38,000 INFO L93 Difference]: Finished difference Result 4583 states and 6210 transitions. [2024-11-08 18:38:38,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:38:38,001 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 113 [2024-11-08 18:38:38,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:38:38,008 INFO L225 Difference]: With dead ends: 4583 [2024-11-08 18:38:38,008 INFO L226 Difference]: Without dead ends: 2824 [2024-11-08 18:38:38,010 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 109 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 18:38:38,011 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 65 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:38:38,011 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 518 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 18:38:38,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2824 states. [2024-11-08 18:38:38,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2824 to 2551. [2024-11-08 18:38:38,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2551 states, 2377 states have (on average 1.3420277660917121) internal successors, (3190), 2405 states have internal predecessors, (3190), 128 states have call successors, (128), 45 states have call predecessors, (128), 45 states have return successors, (128), 100 states have call predecessors, (128), 128 states have call successors, (128) [2024-11-08 18:38:38,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2551 states to 2551 states and 3446 transitions. [2024-11-08 18:38:38,649 INFO L78 Accepts]: Start accepts. Automaton has 2551 states and 3446 transitions. Word has length 113 [2024-11-08 18:38:38,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:38:38,649 INFO L471 AbstractCegarLoop]: Abstraction has 2551 states and 3446 transitions. [2024-11-08 18:38:38,650 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:38:38,650 INFO L276 IsEmpty]: Start isEmpty. Operand 2551 states and 3446 transitions. [2024-11-08 18:38:38,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-08 18:38:38,651 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:38:38,652 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:38:38,658 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:38:38,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:38:38,852 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:38:38,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:38:38,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1686440650, now seen corresponding path program 1 times [2024-11-08 18:38:38,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:38:38,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1907857391] [2024-11-08 18:38:38,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:38:38,855 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 18:38:38,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:38:38,858 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:38:38,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:38:39,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:38:39,274 INFO L255 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-08 18:38:39,279 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:38:39,293 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 18:38:39,301 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 18:38:39,631 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 36 treesize of output 29 [2024-11-08 18:38:40,523 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:38:40,524 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 32 [2024-11-08 18:38:41,060 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:38:41,061 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 47 treesize of output 43 [2024-11-08 18:38:41,545 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:38:41,545 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 71 treesize of output 67 [2024-11-08 18:38:42,995 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 173 proven. 18 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-11-08 18:38:42,996 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:38:43,668 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:38:43,668 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:38:43,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1907857391] [2024-11-08 18:38:43,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1907857391] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:38:43,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:38:43,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [18] total 22 [2024-11-08 18:38:43,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692624248] [2024-11-08 18:38:43,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:38:43,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:38:43,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:38:43,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:38:43,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=358, Unknown=0, NotChecked=0, Total=462 [2024-11-08 18:38:43,670 INFO L87 Difference]: Start difference. First operand 2551 states and 3446 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:38:45,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:38:45,315 INFO L93 Difference]: Finished difference Result 5055 states and 6833 transitions. [2024-11-08 18:38:45,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:38:45,316 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 113 [2024-11-08 18:38:45,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:38:45,321 INFO L225 Difference]: With dead ends: 5055 [2024-11-08 18:38:45,322 INFO L226 Difference]: Without dead ends: 3012 [2024-11-08 18:38:45,325 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=121, Invalid=431, Unknown=0, NotChecked=0, Total=552 [2024-11-08 18:38:45,325 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 344 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:38:45,326 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 508 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 18:38:45,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3012 states. [2024-11-08 18:38:45,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3012 to 2307. [2024-11-08 18:38:45,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2307 states, 2164 states have (on average 1.3470425138632163) internal successors, (2915), 2184 states have internal predecessors, (2915), 104 states have call successors, (104), 38 states have call predecessors, (104), 38 states have return successors, (104), 84 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-08 18:38:45,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2307 states to 2307 states and 3123 transitions. [2024-11-08 18:38:45,815 INFO L78 Accepts]: Start accepts. Automaton has 2307 states and 3123 transitions. Word has length 113 [2024-11-08 18:38:45,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:38:45,816 INFO L471 AbstractCegarLoop]: Abstraction has 2307 states and 3123 transitions. [2024-11-08 18:38:45,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:38:45,816 INFO L276 IsEmpty]: Start isEmpty. Operand 2307 states and 3123 transitions. [2024-11-08 18:38:45,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-08 18:38:45,818 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:38:45,818 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:38:45,826 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:38:46,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:38:46,018 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:38:46,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:38:46,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1099634636, now seen corresponding path program 1 times [2024-11-08 18:38:46,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:38:46,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [643346717] [2024-11-08 18:38:46,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:38:46,019 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 18:38:46,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:38:46,024 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:38:46,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:38:46,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:38:46,325 INFO L255 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 18:38:46,327 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:38:47,043 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 53 proven. 30 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-11-08 18:38:47,043 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:38:47,339 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:38:47,339 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:38:47,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [643346717] [2024-11-08 18:38:47,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [643346717] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:38:47,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:38:47,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2024-11-08 18:38:47,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337355084] [2024-11-08 18:38:47,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:38:47,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:38:47,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:38:47,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:38:47,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:38:47,341 INFO L87 Difference]: Start difference. First operand 2307 states and 3123 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:38:47,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:38:47,907 INFO L93 Difference]: Finished difference Result 4364 states and 5931 transitions. [2024-11-08 18:38:47,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:38:47,907 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 113 [2024-11-08 18:38:47,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:38:47,911 INFO L225 Difference]: With dead ends: 4364 [2024-11-08 18:38:47,911 INFO L226 Difference]: Without dead ends: 2565 [2024-11-08 18:38:47,913 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:38:47,913 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 117 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:38:47,913 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 437 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:38:47,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2565 states. [2024-11-08 18:38:48,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2565 to 2305. [2024-11-08 18:38:48,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2305 states, 2162 states have (on average 1.3376503237742832) internal successors, (2892), 2182 states have internal predecessors, (2892), 104 states have call successors, (104), 38 states have call predecessors, (104), 38 states have return successors, (104), 84 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-08 18:38:48,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2305 states to 2305 states and 3100 transitions. [2024-11-08 18:38:48,383 INFO L78 Accepts]: Start accepts. Automaton has 2305 states and 3100 transitions. Word has length 113 [2024-11-08 18:38:48,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:38:48,384 INFO L471 AbstractCegarLoop]: Abstraction has 2305 states and 3100 transitions. [2024-11-08 18:38:48,384 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:38:48,384 INFO L276 IsEmpty]: Start isEmpty. Operand 2305 states and 3100 transitions. [2024-11-08 18:38:48,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-08 18:38:48,386 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:38:48,386 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:38:48,394 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:38:48,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:38:48,587 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:38:48,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:38:48,588 INFO L85 PathProgramCache]: Analyzing trace with hash -2088171673, now seen corresponding path program 1 times [2024-11-08 18:38:48,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:38:48,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2129972257] [2024-11-08 18:38:48,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:38:48,589 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 18:38:48,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:38:48,592 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:38:48,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Waiting until timeout for monitored process [2024-11-08 18:38:49,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:38:49,096 INFO L255 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-08 18:38:49,101 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:38:49,110 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 18:38:49,119 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 18:38:49,274 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-11-08 18:38:49,533 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:38:49,534 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 35 treesize of output 37 [2024-11-08 18:38:49,983 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:38:49,983 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 46 treesize of output 51 [2024-11-08 18:38:50,470 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:38:50,470 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 76 treesize of output 70 [2024-11-08 18:38:51,076 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-08 18:38:51,076 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:38:51,077 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:38:51,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2129972257] [2024-11-08 18:38:51,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2129972257] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:38:51,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:38:51,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:38:51,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806192083] [2024-11-08 18:38:51,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:38:51,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:38:51,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:38:51,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:38:51,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:38:51,078 INFO L87 Difference]: Start difference. First operand 2305 states and 3100 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-08 18:38:53,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:38:53,669 INFO L93 Difference]: Finished difference Result 4535 states and 6119 transitions. [2024-11-08 18:38:53,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:38:53,670 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 113 [2024-11-08 18:38:53,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:38:53,673 INFO L225 Difference]: With dead ends: 4535 [2024-11-08 18:38:53,673 INFO L226 Difference]: Without dead ends: 2738 [2024-11-08 18:38:53,675 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 104 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:38:53,675 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 210 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:38:53,675 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 515 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-08 18:38:53,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2738 states. [2024-11-08 18:38:54,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2738 to 2296. [2024-11-08 18:38:54,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2296 states, 2153 states have (on average 1.334881560613098) internal successors, (2874), 2173 states have internal predecessors, (2874), 104 states have call successors, (104), 38 states have call predecessors, (104), 38 states have return successors, (104), 84 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-08 18:38:54,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2296 states to 2296 states and 3082 transitions. [2024-11-08 18:38:54,034 INFO L78 Accepts]: Start accepts. Automaton has 2296 states and 3082 transitions. Word has length 113 [2024-11-08 18:38:54,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:38:54,035 INFO L471 AbstractCegarLoop]: Abstraction has 2296 states and 3082 transitions. [2024-11-08 18:38:54,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-08 18:38:54,035 INFO L276 IsEmpty]: Start isEmpty. Operand 2296 states and 3082 transitions. [2024-11-08 18:38:54,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-08 18:38:54,036 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:38:54,037 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:38:54,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-08 18:38:54,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:38:54,237 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:38:54,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:38:54,238 INFO L85 PathProgramCache]: Analyzing trace with hash -348018136, now seen corresponding path program 1 times [2024-11-08 18:38:54,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:38:54,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2023212906] [2024-11-08 18:38:54,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:38:54,238 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 18:38:54,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:38:54,239 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:38:54,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:38:54,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:38:54,644 INFO L255 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-08 18:38:54,648 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:38:54,654 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 18:38:54,706 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 23 [2024-11-08 18:38:54,890 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:38:54,891 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 47 treesize of output 32 [2024-11-08 18:38:55,083 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:38:55,083 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 53 treesize of output 23 [2024-11-08 18:38:55,381 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:38:55,381 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:38:55,382 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:38:55,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2023212906] [2024-11-08 18:38:55,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2023212906] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:38:55,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:38:55,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 18:38:55,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040289669] [2024-11-08 18:38:55,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:38:55,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 18:38:55,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:38:55,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 18:38:55,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:38:55,384 INFO L87 Difference]: Start difference. First operand 2296 states and 3082 transitions. Second operand has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:38:59,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:38:59,203 INFO L93 Difference]: Finished difference Result 4695 states and 6264 transitions. [2024-11-08 18:38:59,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-08 18:38:59,203 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 113 [2024-11-08 18:38:59,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:38:59,207 INFO L225 Difference]: With dead ends: 4695 [2024-11-08 18:38:59,207 INFO L226 Difference]: Without dead ends: 2907 [2024-11-08 18:38:59,209 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2024-11-08 18:38:59,210 INFO L432 NwaCegarLoop]: 258 mSDtfsCounter, 173 mSDsluCounter, 1760 mSDsCounter, 0 mSdLazyCounter, 740 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 2018 SdHoareTripleChecker+Invalid, 747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-08 18:38:59,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 2018 Invalid, 747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 740 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-08 18:38:59,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2907 states. [2024-11-08 18:38:59,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2907 to 2324. [2024-11-08 18:38:59,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2324 states, 2181 states have (on average 1.3324163227877122) internal successors, (2906), 2201 states have internal predecessors, (2906), 104 states have call successors, (104), 38 states have call predecessors, (104), 38 states have return successors, (104), 84 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-08 18:38:59,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2324 states to 2324 states and 3114 transitions. [2024-11-08 18:38:59,602 INFO L78 Accepts]: Start accepts. Automaton has 2324 states and 3114 transitions. Word has length 113 [2024-11-08 18:38:59,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:38:59,602 INFO L471 AbstractCegarLoop]: Abstraction has 2324 states and 3114 transitions. [2024-11-08 18:38:59,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:38:59,602 INFO L276 IsEmpty]: Start isEmpty. Operand 2324 states and 3114 transitions. [2024-11-08 18:38:59,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-08 18:38:59,603 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:38:59,604 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:38:59,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:38:59,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:38:59,804 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:38:59,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:38:59,805 INFO L85 PathProgramCache]: Analyzing trace with hash 469630314, now seen corresponding path program 1 times [2024-11-08 18:38:59,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:38:59,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2144289733] [2024-11-08 18:38:59,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:38:59,805 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 18:38:59,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:38:59,806 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:38:59,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2024-11-08 18:39:00,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:39:00,212 INFO L255 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-08 18:39:00,217 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:39:00,241 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 18:39:00,250 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 18:39:00,360 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 18:39:00,448 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 18:39:00,667 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:39:00,667 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 18:39:00,814 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:39:00,815 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 45 treesize of output 39 [2024-11-08 18:39:01,011 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:39:01,011 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 51 treesize of output 21 [2024-11-08 18:39:01,256 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-08 18:39:01,256 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:39:01,256 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:39:01,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2144289733] [2024-11-08 18:39:01,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2144289733] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:39:01,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:39:01,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-08 18:39:01,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087803274] [2024-11-08 18:39:01,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:39:01,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 18:39:01,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:39:01,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 18:39:01,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:39:01,258 INFO L87 Difference]: Start difference. First operand 2324 states and 3114 transitions. Second operand has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 11 states have internal predecessors, (59), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 18:39:05,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:39:05,178 INFO L93 Difference]: Finished difference Result 4575 states and 6100 transitions. [2024-11-08 18:39:05,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 18:39:05,178 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 11 states have internal predecessors, (59), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 113 [2024-11-08 18:39:05,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:39:05,183 INFO L225 Difference]: With dead ends: 4575 [2024-11-08 18:39:05,183 INFO L226 Difference]: Without dead ends: 2775 [2024-11-08 18:39:05,185 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2024-11-08 18:39:05,186 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 195 mSDsluCounter, 976 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 1136 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:39:05,186 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 1136 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 756 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-08 18:39:05,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2775 states. [2024-11-08 18:39:05,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2775 to 2304. [2024-11-08 18:39:05,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2304 states, 2161 states have (on average 1.3299398426654327) internal successors, (2874), 2181 states have internal predecessors, (2874), 104 states have call successors, (104), 38 states have call predecessors, (104), 38 states have return successors, (104), 84 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-08 18:39:05,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2304 states to 2304 states and 3082 transitions. [2024-11-08 18:39:05,612 INFO L78 Accepts]: Start accepts. Automaton has 2304 states and 3082 transitions. Word has length 113 [2024-11-08 18:39:05,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:39:05,612 INFO L471 AbstractCegarLoop]: Abstraction has 2304 states and 3082 transitions. [2024-11-08 18:39:05,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 11 states have internal predecessors, (59), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 18:39:05,613 INFO L276 IsEmpty]: Start isEmpty. Operand 2304 states and 3082 transitions. [2024-11-08 18:39:05,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-08 18:39:05,615 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:39:05,615 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:39:05,623 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Ended with exit code 0 [2024-11-08 18:39:05,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:39:05,815 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:39:05,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:39:05,816 INFO L85 PathProgramCache]: Analyzing trace with hash 226406725, now seen corresponding path program 1 times [2024-11-08 18:39:05,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:39:05,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1297096444] [2024-11-08 18:39:05,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:39:05,816 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 18:39:05,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:39:05,817 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:39:05,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:39:06,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:39:06,278 INFO L255 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-08 18:39:06,282 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:39:06,297 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 18:39:06,417 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 26 treesize of output 25 [2024-11-08 18:39:06,964 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:39:06,964 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 47 treesize of output 43 [2024-11-08 18:39:08,612 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:39:08,612 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 113 treesize of output 82 [2024-11-08 18:39:09,200 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:39:09,200 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 113 treesize of output 97 [2024-11-08 18:39:10,695 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:39:10,695 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 136 treesize of output 72 [2024-11-08 18:39:11,488 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 151 proven. 18 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-11-08 18:39:11,489 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:39:13,024 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:39:13,025 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:39:13,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1297096444] [2024-11-08 18:39:13,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1297096444] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:39:13,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:39:13,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [24] total 31 [2024-11-08 18:39:13,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429897123] [2024-11-08 18:39:13,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:39:13,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:39:13,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:39:13,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:39:13,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=807, Unknown=0, NotChecked=0, Total=930 [2024-11-08 18:39:13,028 INFO L87 Difference]: Start difference. First operand 2304 states and 3082 transitions. Second operand has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:39:15,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:39:15,903 INFO L93 Difference]: Finished difference Result 4326 states and 5763 transitions. [2024-11-08 18:39:15,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 18:39:15,904 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 113 [2024-11-08 18:39:15,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:39:15,907 INFO L225 Difference]: With dead ends: 4326 [2024-11-08 18:39:15,907 INFO L226 Difference]: Without dead ends: 2530 [2024-11-08 18:39:15,909 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=148, Invalid=1112, Unknown=0, NotChecked=0, Total=1260 [2024-11-08 18:39:15,909 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 91 mSDsluCounter, 1332 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 1542 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:39:15,909 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 1542 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-08 18:39:15,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2530 states. [2024-11-08 18:39:16,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2530 to 2274. [2024-11-08 18:39:16,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2274 states, 2131 states have (on average 1.330830595964336) internal successors, (2836), 2151 states have internal predecessors, (2836), 104 states have call successors, (104), 38 states have call predecessors, (104), 38 states have return successors, (104), 84 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-08 18:39:16,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2274 states to 2274 states and 3044 transitions. [2024-11-08 18:39:16,224 INFO L78 Accepts]: Start accepts. Automaton has 2274 states and 3044 transitions. Word has length 113 [2024-11-08 18:39:16,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:39:16,224 INFO L471 AbstractCegarLoop]: Abstraction has 2274 states and 3044 transitions. [2024-11-08 18:39:16,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:39:16,224 INFO L276 IsEmpty]: Start isEmpty. Operand 2274 states and 3044 transitions. [2024-11-08 18:39:16,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-08 18:39:16,225 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:39:16,225 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:39:16,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2024-11-08 18:39:16,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:39:16,426 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:39:16,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:39:16,426 INFO L85 PathProgramCache]: Analyzing trace with hash 590530084, now seen corresponding path program 1 times [2024-11-08 18:39:16,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:39:16,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1687175998] [2024-11-08 18:39:16,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:39:16,427 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 18:39:16,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:39:16,430 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:39:16,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:39:16,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:39:16,823 INFO L255 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-08 18:39:16,826 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:39:16,908 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 18:39:17,370 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 30 [2024-11-08 18:39:18,202 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 63 [2024-11-08 18:39:18,537 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:39:18,537 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 192 treesize of output 78 [2024-11-08 18:39:18,770 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 9 proven. 107 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-08 18:39:18,770 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:39:19,380 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:39:19,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1687175998] [2024-11-08 18:39:19,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1687175998] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:39:19,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1931945890] [2024-11-08 18:39:19,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:39:19,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:39:19,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:39:19,382 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:39:19,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2024-11-08 18:39:19,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:39:19,727 INFO L255 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-08 18:39:19,731 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:39:21,430 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 30 [2024-11-08 18:39:22,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 63 [2024-11-08 18:39:22,563 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:39:22,564 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 192 treesize of output 78 [2024-11-08 18:39:22,616 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 9 proven. 110 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-08 18:39:22,616 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:39:22,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1931945890] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:39:22,990 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:39:22,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 18] total 24 [2024-11-08 18:39:22,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841065290] [2024-11-08 18:39:22,991 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:39:22,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-08 18:39:22,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:39:22,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-08 18:39:22,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=764, Unknown=0, NotChecked=0, Total=870 [2024-11-08 18:39:22,992 INFO L87 Difference]: Start difference. First operand 2274 states and 3044 transitions. Second operand has 25 states, 23 states have (on average 3.217391304347826) internal successors, (74), 22 states have internal predecessors, (74), 4 states have call successors, (13), 4 states have call predecessors, (13), 5 states have return successors, (14), 2 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-08 18:39:32,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:39:32,324 INFO L93 Difference]: Finished difference Result 4707 states and 6222 transitions. [2024-11-08 18:39:32,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-08 18:39:32,324 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 3.217391304347826) internal successors, (74), 22 states have internal predecessors, (74), 4 states have call successors, (13), 4 states have call predecessors, (13), 5 states have return successors, (14), 2 states have call predecessors, (14), 4 states have call successors, (14) Word has length 113 [2024-11-08 18:39:32,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:39:32,329 INFO L225 Difference]: With dead ends: 4707 [2024-11-08 18:39:32,329 INFO L226 Difference]: Without dead ends: 4705 [2024-11-08 18:39:32,331 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 255 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 715 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=465, Invalid=2727, Unknown=0, NotChecked=0, Total=3192 [2024-11-08 18:39:32,331 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 400 mSDsluCounter, 2942 mSDsCounter, 0 mSdLazyCounter, 1631 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 3147 SdHoareTripleChecker+Invalid, 1671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:39:32,331 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [422 Valid, 3147 Invalid, 1671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1631 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2024-11-08 18:39:32,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4705 states. [2024-11-08 18:39:32,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4705 to 3051. [2024-11-08 18:39:32,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3051 states, 2839 states have (on average 1.3392039450510744) internal successors, (3802), 2869 states have internal predecessors, (3802), 148 states have call successors, (148), 63 states have call predecessors, (148), 63 states have return successors, (148), 118 states have call predecessors, (148), 148 states have call successors, (148) [2024-11-08 18:39:32,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3051 states to 3051 states and 4098 transitions. [2024-11-08 18:39:32,900 INFO L78 Accepts]: Start accepts. Automaton has 3051 states and 4098 transitions. Word has length 113 [2024-11-08 18:39:32,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:39:32,900 INFO L471 AbstractCegarLoop]: Abstraction has 3051 states and 4098 transitions. [2024-11-08 18:39:32,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 3.217391304347826) internal successors, (74), 22 states have internal predecessors, (74), 4 states have call successors, (13), 4 states have call predecessors, (13), 5 states have return successors, (14), 2 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-08 18:39:32,901 INFO L276 IsEmpty]: Start isEmpty. Operand 3051 states and 4098 transitions. [2024-11-08 18:39:32,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-08 18:39:32,902 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:39:32,903 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:39:32,908 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Ended with exit code 0 [2024-11-08 18:39:33,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2024-11-08 18:39:33,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:39:33,303 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:39:33,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:39:33,304 INFO L85 PathProgramCache]: Analyzing trace with hash -292978906, now seen corresponding path program 1 times [2024-11-08 18:39:33,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:39:33,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [449426070] [2024-11-08 18:39:33,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:39:33,304 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 18:39:33,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:39:33,308 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:39:33,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2024-11-08 18:39:33,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:39:33,662 INFO L255 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 18:39:33,664 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:39:33,754 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-11-08 18:39:33,754 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:39:33,754 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:39:33,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [449426070] [2024-11-08 18:39:33,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [449426070] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:39:33,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:39:33,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:39:33,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973937453] [2024-11-08 18:39:33,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:39:33,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:39:33,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:39:33,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:39:33,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:39:33,756 INFO L87 Difference]: Start difference. First operand 3051 states and 4098 transitions. Second operand has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-08 18:39:34,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:39:34,561 INFO L93 Difference]: Finished difference Result 4654 states and 6218 transitions. [2024-11-08 18:39:34,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:39:34,562 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 113 [2024-11-08 18:39:34,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:39:34,567 INFO L225 Difference]: With dead ends: 4654 [2024-11-08 18:39:34,567 INFO L226 Difference]: Without dead ends: 2045 [2024-11-08 18:39:34,570 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:39:34,571 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 1 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:39:34,571 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 599 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:39:34,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2045 states. [2024-11-08 18:39:34,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2045 to 1995. [2024-11-08 18:39:34,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1995 states, 1850 states have (on average 1.3367567567567566) internal successors, (2473), 1867 states have internal predecessors, (2473), 98 states have call successors, (98), 46 states have call predecessors, (98), 46 states have return successors, (98), 81 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-08 18:39:34,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1995 states to 1995 states and 2669 transitions. [2024-11-08 18:39:34,960 INFO L78 Accepts]: Start accepts. Automaton has 1995 states and 2669 transitions. Word has length 113 [2024-11-08 18:39:34,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:39:34,960 INFO L471 AbstractCegarLoop]: Abstraction has 1995 states and 2669 transitions. [2024-11-08 18:39:34,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-08 18:39:34,960 INFO L276 IsEmpty]: Start isEmpty. Operand 1995 states and 2669 transitions. [2024-11-08 18:39:34,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-08 18:39:34,961 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:39:34,961 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:39:34,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Forceful destruction successful, exit code 0 [2024-11-08 18:39:35,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:39:35,162 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:39:35,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:39:35,162 INFO L85 PathProgramCache]: Analyzing trace with hash -919666210, now seen corresponding path program 1 times [2024-11-08 18:39:35,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:39:35,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1566687328] [2024-11-08 18:39:35,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:39:35,163 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 18:39:35,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:39:35,164 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:39:35,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2024-11-08 18:39:35,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:39:35,500 INFO L255 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 18:39:35,502 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:39:35,684 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:39:35,684 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 41 treesize of output 17 [2024-11-08 18:39:35,741 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:39:35,741 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:39:35,741 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:39:35,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1566687328] [2024-11-08 18:39:35,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1566687328] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:39:35,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:39:35,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:39:35,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426617451] [2024-11-08 18:39:35,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:39:35,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:39:35,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:39:35,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:39:35,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:39:35,743 INFO L87 Difference]: Start difference. First operand 1995 states and 2669 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:39:39,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 18:39:41,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 18:39:44,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 18:39:49,021 WARN L539 Checker$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 18:39:53,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 18:39:54,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 18:39:55,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:39:55,311 INFO L93 Difference]: Finished difference Result 3681 states and 4902 transitions. [2024-11-08 18:39:55,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:39:55,311 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 114 [2024-11-08 18:39:55,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:39:55,314 INFO L225 Difference]: With dead ends: 3681 [2024-11-08 18:39:55,314 INFO L226 Difference]: Without dead ends: 2174 [2024-11-08 18:39:55,316 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 110 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 18:39:55,316 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 76 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:39:55,317 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 480 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 172 Invalid, 3 Unknown, 0 Unchecked, 19.0s Time] [2024-11-08 18:39:55,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2174 states. [2024-11-08 18:39:55,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2174 to 1999. [2024-11-08 18:39:55,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1999 states, 1852 states have (on average 1.329913606911447) internal successors, (2463), 1869 states have internal predecessors, (2463), 98 states have call successors, (98), 48 states have call predecessors, (98), 48 states have return successors, (98), 81 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-08 18:39:55,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1999 states to 1999 states and 2659 transitions. [2024-11-08 18:39:55,682 INFO L78 Accepts]: Start accepts. Automaton has 1999 states and 2659 transitions. Word has length 114 [2024-11-08 18:39:55,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:39:55,683 INFO L471 AbstractCegarLoop]: Abstraction has 1999 states and 2659 transitions. [2024-11-08 18:39:55,683 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:39:55,683 INFO L276 IsEmpty]: Start isEmpty. Operand 1999 states and 2659 transitions. [2024-11-08 18:39:55,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-08 18:39:55,684 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:39:55,684 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:39:55,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Forceful destruction successful, exit code 0 [2024-11-08 18:39:55,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:39:55,885 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:39:55,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:39:55,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1975624259, now seen corresponding path program 1 times [2024-11-08 18:39:55,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:39:55,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [732801210] [2024-11-08 18:39:55,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:39:55,886 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 18:39:55,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:39:55,887 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:39:55,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2024-11-08 18:39:56,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:39:56,212 INFO L255 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 18:39:56,214 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:39:56,221 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 18:39:56,319 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 25 [2024-11-08 18:39:56,426 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:39:56,426 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:39:56,426 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:39:56,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [732801210] [2024-11-08 18:39:56,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [732801210] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:39:56,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:39:56,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:39:56,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323545706] [2024-11-08 18:39:56,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:39:56,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:39:56,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:39:56,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:39:56,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:39:56,428 INFO L87 Difference]: Start difference. First operand 1999 states and 2659 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:39:58,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:39:58,292 INFO L93 Difference]: Finished difference Result 4970 states and 6611 transitions. [2024-11-08 18:39:58,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:39:58,295 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 116 [2024-11-08 18:39:58,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:39:58,301 INFO L225 Difference]: With dead ends: 4970 [2024-11-08 18:39:58,301 INFO L226 Difference]: Without dead ends: 3459 [2024-11-08 18:39:58,304 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:39:58,305 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 118 mSDsluCounter, 908 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 1122 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:39:58,305 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 1122 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 18:39:58,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3459 states. [2024-11-08 18:39:58,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3459 to 2685. [2024-11-08 18:39:58,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2685 states, 2538 states have (on average 1.3238770685579195) internal successors, (3360), 2555 states have internal predecessors, (3360), 98 states have call successors, (98), 48 states have call predecessors, (98), 48 states have return successors, (98), 81 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-08 18:39:58,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2685 states to 2685 states and 3556 transitions. [2024-11-08 18:39:58,783 INFO L78 Accepts]: Start accepts. Automaton has 2685 states and 3556 transitions. Word has length 116 [2024-11-08 18:39:58,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:39:58,783 INFO L471 AbstractCegarLoop]: Abstraction has 2685 states and 3556 transitions. [2024-11-08 18:39:58,783 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:39:58,784 INFO L276 IsEmpty]: Start isEmpty. Operand 2685 states and 3556 transitions. [2024-11-08 18:39:58,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-08 18:39:58,785 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:39:58,785 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:39:58,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Forceful destruction successful, exit code 0 [2024-11-08 18:39:58,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:39:58,985 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:39:58,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:39:58,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1879066956, now seen corresponding path program 1 times [2024-11-08 18:39:58,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:39:58,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [424352873] [2024-11-08 18:39:58,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:39:58,986 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:39:58,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:39:58,989 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:39:58,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2024-11-08 18:39:59,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:39:59,376 INFO L255 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 18:39:59,378 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:39:59,542 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:39:59,542 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 16 [2024-11-08 18:39:59,695 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:39:59,695 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:39:59,696 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:39:59,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [424352873] [2024-11-08 18:39:59,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [424352873] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:39:59,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:39:59,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:39:59,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771551683] [2024-11-08 18:39:59,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:39:59,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:39:59,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:39:59,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:39:59,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:39:59,697 INFO L87 Difference]: Start difference. First operand 2685 states and 3556 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:40:01,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:40:01,300 INFO L93 Difference]: Finished difference Result 4798 states and 6341 transitions. [2024-11-08 18:40:01,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:40:01,301 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 116 [2024-11-08 18:40:01,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:40:01,304 INFO L225 Difference]: With dead ends: 4798 [2024-11-08 18:40:01,304 INFO L226 Difference]: Without dead ends: 2757 [2024-11-08 18:40:01,307 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:40:01,307 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 71 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:40:01,307 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 586 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 18:40:01,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2757 states. [2024-11-08 18:40:01,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2757 to 2527. [2024-11-08 18:40:01,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2527 states, 2394 states have (on average 1.3258145363408522) internal successors, (3174), 2407 states have internal predecessors, (3174), 88 states have call successors, (88), 44 states have call predecessors, (88), 44 states have return successors, (88), 75 states have call predecessors, (88), 88 states have call successors, (88) [2024-11-08 18:40:01,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2527 states to 2527 states and 3350 transitions. [2024-11-08 18:40:01,664 INFO L78 Accepts]: Start accepts. Automaton has 2527 states and 3350 transitions. Word has length 116 [2024-11-08 18:40:01,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:40:01,665 INFO L471 AbstractCegarLoop]: Abstraction has 2527 states and 3350 transitions. [2024-11-08 18:40:01,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:40:01,665 INFO L276 IsEmpty]: Start isEmpty. Operand 2527 states and 3350 transitions. [2024-11-08 18:40:01,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-08 18:40:01,667 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:40:01,667 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:40:01,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Forceful destruction successful, exit code 0 [2024-11-08 18:40:01,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:40:01,868 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:40:01,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:01,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1405307702, now seen corresponding path program 1 times [2024-11-08 18:40:01,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:40:01,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [758406741] [2024-11-08 18:40:01,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:01,869 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 18:40:01,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:40:01,870 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:40:01,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2024-11-08 18:40:02,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:02,275 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-08 18:40:02,279 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:40:02,286 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 18:40:02,292 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 18:40:02,393 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-11-08 18:40:02,614 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:40:02,615 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-11-08 18:40:02,888 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:40:02,889 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 38 [2024-11-08 18:40:03,120 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:40:03,120 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 71 treesize of output 67 [2024-11-08 18:40:03,695 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:40:03,696 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 102 treesize of output 50 [2024-11-08 18:40:03,736 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-08 18:40:03,736 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:40:03,736 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:40:03,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [758406741] [2024-11-08 18:40:03,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [758406741] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:40:03,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:40:03,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:40:03,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033671182] [2024-11-08 18:40:03,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:40:03,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:40:03,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:40:03,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:40:03,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:40:03,738 INFO L87 Difference]: Start difference. First operand 2527 states and 3350 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-08 18:40:05,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:40:05,575 INFO L93 Difference]: Finished difference Result 4605 states and 6080 transitions. [2024-11-08 18:40:05,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:40:05,576 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 116 [2024-11-08 18:40:05,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:40:05,580 INFO L225 Difference]: With dead ends: 4605 [2024-11-08 18:40:05,580 INFO L226 Difference]: Without dead ends: 2722 [2024-11-08 18:40:05,581 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:40:05,581 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 187 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:40:05,582 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 408 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 18:40:05,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2722 states. [2024-11-08 18:40:05,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2722 to 2527. [2024-11-08 18:40:05,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2527 states, 2394 states have (on average 1.3249791144527987) internal successors, (3172), 2407 states have internal predecessors, (3172), 88 states have call successors, (88), 44 states have call predecessors, (88), 44 states have return successors, (88), 75 states have call predecessors, (88), 88 states have call successors, (88) [2024-11-08 18:40:05,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2527 states to 2527 states and 3348 transitions. [2024-11-08 18:40:05,920 INFO L78 Accepts]: Start accepts. Automaton has 2527 states and 3348 transitions. Word has length 116 [2024-11-08 18:40:05,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:40:05,920 INFO L471 AbstractCegarLoop]: Abstraction has 2527 states and 3348 transitions. [2024-11-08 18:40:05,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-08 18:40:05,921 INFO L276 IsEmpty]: Start isEmpty. Operand 2527 states and 3348 transitions. [2024-11-08 18:40:05,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-08 18:40:05,922 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:40:05,922 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:40:05,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (51)] Forceful destruction successful, exit code 0 [2024-11-08 18:40:06,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:40:06,122 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:40:06,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:06,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1135989853, now seen corresponding path program 1 times [2024-11-08 18:40:06,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:40:06,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [787601839] [2024-11-08 18:40:06,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:06,123 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 18:40:06,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:40:06,129 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:40:06,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2024-11-08 18:40:06,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:06,556 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-08 18:40:06,558 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:40:06,570 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 18:40:06,758 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-11-08 18:40:07,123 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:40:07,123 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 37 treesize of output 39 [2024-11-08 18:40:07,265 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:40:07,265 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 43 treesize of output 19 [2024-11-08 18:40:07,482 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 131 proven. 9 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-08 18:40:07,482 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:40:07,804 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:40:07,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [787601839] [2024-11-08 18:40:07,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [787601839] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:40:07,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [882199150] [2024-11-08 18:40:07,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:07,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:40:07,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:40:07,806 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:40:07,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2024-11-08 18:40:08,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:08,129 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-08 18:40:08,133 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:40:08,319 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 31 treesize of output 15 [2024-11-08 18:40:08,823 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:40:08,823 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 39 [2024-11-08 18:40:09,476 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:40:09,476 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 56 treesize of output 55 [2024-11-08 18:40:10,442 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 151 proven. 18 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-11-08 18:40:10,442 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:40:14,103 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 24 proven. 9 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-08 18:40:14,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [882199150] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:40:14,104 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:40:14,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 16, 18] total 38 [2024-11-08 18:40:14,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227752208] [2024-11-08 18:40:14,104 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:40:14,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-08 18:40:14,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:40:14,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-08 18:40:14,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=259, Invalid=1381, Unknown=0, NotChecked=0, Total=1640 [2024-11-08 18:40:14,105 INFO L87 Difference]: Start difference. First operand 2527 states and 3348 transitions. Second operand has 38 states, 34 states have (on average 3.7058823529411766) internal successors, (126), 37 states have internal predecessors, (126), 10 states have call successors, (21), 6 states have call predecessors, (21), 8 states have return successors, (21), 7 states have call predecessors, (21), 10 states have call successors, (21) [2024-11-08 18:40:27,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 18:40:29,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 18:40:36,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:40:36,253 INFO L93 Difference]: Finished difference Result 4787 states and 6226 transitions. [2024-11-08 18:40:36,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-11-08 18:40:36,253 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 34 states have (on average 3.7058823529411766) internal successors, (126), 37 states have internal predecessors, (126), 10 states have call successors, (21), 6 states have call predecessors, (21), 8 states have return successors, (21), 7 states have call predecessors, (21), 10 states have call successors, (21) Word has length 118 [2024-11-08 18:40:36,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:40:36,257 INFO L225 Difference]: With dead ends: 4787 [2024-11-08 18:40:36,257 INFO L226 Difference]: Without dead ends: 2736 [2024-11-08 18:40:36,259 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 437 GetRequests, 351 SyntacticMatches, 1 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1948 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=1240, Invalid=6242, Unknown=0, NotChecked=0, Total=7482 [2024-11-08 18:40:36,260 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 982 mSDsluCounter, 1662 mSDsCounter, 0 mSdLazyCounter, 1747 mSolverCounterSat, 322 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 997 SdHoareTripleChecker+Valid, 1768 SdHoareTripleChecker+Invalid, 2069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 322 IncrementalHoareTripleChecker+Valid, 1747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:40:36,260 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [997 Valid, 1768 Invalid, 2069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [322 Valid, 1747 Invalid, 0 Unknown, 0 Unchecked, 16.0s Time] [2024-11-08 18:40:36,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2736 states. [2024-11-08 18:40:36,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2736 to 2102. [2024-11-08 18:40:36,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2102 states, 1969 states have (on average 1.2844083291010666) internal successors, (2529), 1982 states have internal predecessors, (2529), 88 states have call successors, (88), 44 states have call predecessors, (88), 44 states have return successors, (88), 75 states have call predecessors, (88), 88 states have call successors, (88) [2024-11-08 18:40:36,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2102 states to 2102 states and 2705 transitions. [2024-11-08 18:40:36,806 INFO L78 Accepts]: Start accepts. Automaton has 2102 states and 2705 transitions. Word has length 118 [2024-11-08 18:40:36,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:40:36,806 INFO L471 AbstractCegarLoop]: Abstraction has 2102 states and 2705 transitions. [2024-11-08 18:40:36,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 34 states have (on average 3.7058823529411766) internal successors, (126), 37 states have internal predecessors, (126), 10 states have call successors, (21), 6 states have call predecessors, (21), 8 states have return successors, (21), 7 states have call predecessors, (21), 10 states have call successors, (21) [2024-11-08 18:40:36,806 INFO L276 IsEmpty]: Start isEmpty. Operand 2102 states and 2705 transitions. [2024-11-08 18:40:36,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-08 18:40:36,808 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:40:36,808 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:40:36,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Forceful destruction successful, exit code 0 [2024-11-08 18:40:37,014 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (52)] Ended with exit code 0 [2024-11-08 18:40:37,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:40:37,209 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:40:37,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:37,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1181906599, now seen corresponding path program 1 times [2024-11-08 18:40:37,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:40:37,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1946862124] [2024-11-08 18:40:37,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:37,210 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 18:40:37,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:40:37,211 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:40:37,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (54)] Waiting until timeout for monitored process [2024-11-08 18:40:37,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:37,675 INFO L255 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-08 18:40:37,679 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:40:37,778 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 18:40:38,235 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 32 [2024-11-08 18:40:39,494 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 65 [2024-11-08 18:40:40,046 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:40:40,046 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 142 treesize of output 58 [2024-11-08 18:40:40,657 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-08 18:40:40,657 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:40:41,941 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:40:41,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1946862124] [2024-11-08 18:40:41,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1946862124] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:40:41,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [807075868] [2024-11-08 18:40:41,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:41,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:40:41,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:40:41,943 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:40:41,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2024-11-08 18:40:43,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:43,006 INFO L255 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-08 18:40:43,009 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:40:43,526 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 32 [2024-11-08 18:40:44,711 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 65 [2024-11-08 18:40:45,081 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:40:45,081 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 142 treesize of output 58 [2024-11-08 18:40:45,241 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-11-08 18:40:45,241 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:40:45,934 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:40:45,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [807075868] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:40:45,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:40:45,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [15, 18] total 28 [2024-11-08 18:40:45,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532564384] [2024-11-08 18:40:45,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:40:45,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 18:40:45,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:40:45,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 18:40:45,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=719, Unknown=0, NotChecked=0, Total=812 [2024-11-08 18:40:45,936 INFO L87 Difference]: Start difference. First operand 2102 states and 2705 transitions. Second operand has 12 states, 12 states have (on average 5.083333333333333) internal successors, (61), 12 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:40:47,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:40:47,878 INFO L93 Difference]: Finished difference Result 2823 states and 3578 transitions. [2024-11-08 18:40:47,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 18:40:47,879 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.083333333333333) internal successors, (61), 12 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 118 [2024-11-08 18:40:47,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:40:47,882 INFO L225 Difference]: With dead ends: 2823 [2024-11-08 18:40:47,883 INFO L226 Difference]: Without dead ends: 2821 [2024-11-08 18:40:47,883 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 357 SyntacticMatches, 4 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=138, Invalid=1122, Unknown=0, NotChecked=0, Total=1260 [2024-11-08 18:40:47,884 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 95 mSDsluCounter, 1419 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 1592 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:40:47,884 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 1592 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 18:40:47,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2821 states. [2024-11-08 18:40:48,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2821 to 2459. [2024-11-08 18:40:48,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2459 states, 2317 states have (on average 1.2723349158394475) internal successors, (2948), 2333 states have internal predecessors, (2948), 94 states have call successors, (94), 47 states have call predecessors, (94), 47 states have return successors, (94), 78 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-08 18:40:48,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2459 states to 2459 states and 3136 transitions. [2024-11-08 18:40:48,344 INFO L78 Accepts]: Start accepts. Automaton has 2459 states and 3136 transitions. Word has length 118 [2024-11-08 18:40:48,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:40:48,345 INFO L471 AbstractCegarLoop]: Abstraction has 2459 states and 3136 transitions. [2024-11-08 18:40:48,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.083333333333333) internal successors, (61), 12 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:40:48,345 INFO L276 IsEmpty]: Start isEmpty. Operand 2459 states and 3136 transitions. [2024-11-08 18:40:48,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-08 18:40:48,346 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:40:48,346 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:40:48,361 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0 [2024-11-08 18:40:48,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (54)] Forceful destruction successful, exit code 0 [2024-11-08 18:40:48,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:40:48,747 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:40:48,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:48,747 INFO L85 PathProgramCache]: Analyzing trace with hash 372559973, now seen corresponding path program 1 times [2024-11-08 18:40:48,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:40:48,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [107339429] [2024-11-08 18:40:48,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:48,748 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 18:40:48,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:40:48,749 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:40:48,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (56)] Waiting until timeout for monitored process [2024-11-08 18:40:49,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:49,196 INFO L255 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-08 18:40:49,200 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:40:49,325 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 18:40:49,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 32 [2024-11-08 18:40:52,609 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:40:52,609 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 119 treesize of output 56 [2024-11-08 18:40:53,025 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:40:53,025 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 148 treesize of output 58 [2024-11-08 18:40:53,203 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 8 proven. 108 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-08 18:40:53,203 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:40:53,834 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:40:53,834 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:40:53,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [107339429] [2024-11-08 18:40:53,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [107339429] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:40:53,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:40:53,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 17 [2024-11-08 18:40:53,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457877945] [2024-11-08 18:40:53,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:40:53,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:40:53,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:40:53,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:40:53,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2024-11-08 18:40:53,836 INFO L87 Difference]: Start difference. First operand 2459 states and 3136 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:40:54,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:40:54,558 INFO L93 Difference]: Finished difference Result 4400 states and 5634 transitions. [2024-11-08 18:40:54,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:40:54,560 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 118 [2024-11-08 18:40:54,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:40:54,565 INFO L225 Difference]: With dead ends: 4400 [2024-11-08 18:40:54,565 INFO L226 Difference]: Without dead ends: 2455 [2024-11-08 18:40:54,566 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2024-11-08 18:40:54,567 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 80 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:40:54,567 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 477 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:40:54,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2455 states. [2024-11-08 18:40:54,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2455 to 2450. [2024-11-08 18:40:54,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2450 states, 2308 states have (on average 1.2720970537261698) internal successors, (2936), 2324 states have internal predecessors, (2936), 94 states have call successors, (94), 47 states have call predecessors, (94), 47 states have return successors, (94), 78 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-08 18:40:54,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2450 states to 2450 states and 3124 transitions. [2024-11-08 18:40:54,950 INFO L78 Accepts]: Start accepts. Automaton has 2450 states and 3124 transitions. Word has length 118 [2024-11-08 18:40:54,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:40:54,951 INFO L471 AbstractCegarLoop]: Abstraction has 2450 states and 3124 transitions. [2024-11-08 18:40:54,951 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:40:54,951 INFO L276 IsEmpty]: Start isEmpty. Operand 2450 states and 3124 transitions. [2024-11-08 18:40:54,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-08 18:40:54,953 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:40:54,953 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:40:54,961 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (56)] Ended with exit code 0 [2024-11-08 18:40:55,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:40:55,154 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:40:55,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:55,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1047893093, now seen corresponding path program 1 times [2024-11-08 18:40:55,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:40:55,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1762335209] [2024-11-08 18:40:55,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:55,154 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 18:40:55,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:40:55,155 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:40:55,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (57)] Waiting until timeout for monitored process [2024-11-08 18:40:55,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:55,602 INFO L255 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-08 18:40:55,605 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:40:55,716 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 18:40:56,158 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 32 [2024-11-08 18:40:58,985 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:40:58,985 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 120 treesize of output 57 [2024-11-08 18:40:59,377 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:40:59,377 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 149 treesize of output 59 [2024-11-08 18:40:59,603 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 8 proven. 108 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-08 18:40:59,604 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:41:00,248 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:41:00,249 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:41:00,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1762335209] [2024-11-08 18:41:00,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1762335209] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:41:00,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:41:00,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 17 [2024-11-08 18:41:00,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502191377] [2024-11-08 18:41:00,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:41:00,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:41:00,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:41:00,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:41:00,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2024-11-08 18:41:00,251 INFO L87 Difference]: Start difference. First operand 2450 states and 3124 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:41:01,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:41:01,334 INFO L93 Difference]: Finished difference Result 4419 states and 5640 transitions. [2024-11-08 18:41:01,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:41:01,335 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 118 [2024-11-08 18:41:01,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:41:01,338 INFO L225 Difference]: With dead ends: 4419 [2024-11-08 18:41:01,338 INFO L226 Difference]: Without dead ends: 2483 [2024-11-08 18:41:01,340 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2024-11-08 18:41:01,340 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 84 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:41:01,340 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 462 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:41:01,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2483 states. [2024-11-08 18:41:01,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2483 to 1578. [2024-11-08 18:41:01,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1507 states have (on average 1.2634372926343729) internal successors, (1904), 1513 states have internal predecessors, (1904), 44 states have call successors, (44), 26 states have call predecessors, (44), 26 states have return successors, (44), 38 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-08 18:41:01,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 1992 transitions. [2024-11-08 18:41:01,563 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 1992 transitions. Word has length 118 [2024-11-08 18:41:01,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:41:01,563 INFO L471 AbstractCegarLoop]: Abstraction has 1578 states and 1992 transitions. [2024-11-08 18:41:01,563 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:41:01,563 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 1992 transitions. [2024-11-08 18:41:01,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-08 18:41:01,564 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:41:01,564 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:41:01,570 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (57)] Ended with exit code 0 [2024-11-08 18:41:01,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:41:01,765 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:41:01,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:41:01,765 INFO L85 PathProgramCache]: Analyzing trace with hash 238546467, now seen corresponding path program 1 times [2024-11-08 18:41:01,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:41:01,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1201557677] [2024-11-08 18:41:01,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:41:01,766 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 18:41:01,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:41:01,767 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:41:01,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (58)] Waiting until timeout for monitored process [2024-11-08 18:41:02,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:02,209 INFO L255 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-08 18:41:02,212 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:41:02,375 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 18:41:03,662 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 67 [2024-11-08 18:41:04,166 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:41:04,167 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 166 treesize of output 58 [2024-11-08 18:41:04,662 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-08 18:41:04,663 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:41:05,915 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:41:05,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1201557677] [2024-11-08 18:41:05,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1201557677] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:41:05,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [336929054] [2024-11-08 18:41:05,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:41:05,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:41:05,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:41:05,917 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:41:05,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2024-11-08 18:41:06,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:06,383 INFO L255 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-08 18:41:06,387 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:41:07,833 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 67 [2024-11-08 18:41:08,229 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:41:08,229 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 166 treesize of output 58 [2024-11-08 18:41:08,437 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-11-08 18:41:08,438 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:41:08,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [336929054] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:41:08,914 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:41:08,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17] total 17 [2024-11-08 18:41:08,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194536540] [2024-11-08 18:41:08,915 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:41:08,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-08 18:41:08,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:41:08,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-08 18:41:08,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=626, Unknown=0, NotChecked=0, Total=702 [2024-11-08 18:41:08,916 INFO L87 Difference]: Start difference. First operand 1578 states and 1992 transitions. Second operand has 18 states, 18 states have (on average 3.7222222222222223) internal successors, (67), 17 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 18:41:16,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:41:16,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:41:16,818 INFO L93 Difference]: Finished difference Result 3281 states and 4102 transitions. [2024-11-08 18:41:16,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-08 18:41:16,820 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.7222222222222223) internal successors, (67), 17 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 118 [2024-11-08 18:41:16,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:41:16,824 INFO L225 Difference]: With dead ends: 3281 [2024-11-08 18:41:16,825 INFO L226 Difference]: Without dead ends: 3279 [2024-11-08 18:41:16,825 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 281 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=263, Invalid=1899, Unknown=0, NotChecked=0, Total=2162 [2024-11-08 18:41:16,825 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 326 mSDsluCounter, 2163 mSDsCounter, 0 mSdLazyCounter, 1151 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 2329 SdHoareTripleChecker+Invalid, 1191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:41:16,825 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [335 Valid, 2329 Invalid, 1191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1151 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-11-08 18:41:16,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3279 states. [2024-11-08 18:41:17,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3279 to 3148. [2024-11-08 18:41:17,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3148 states, 3006 states have (on average 1.2611443779108449) internal successors, (3791), 3023 states have internal predecessors, (3791), 89 states have call successors, (89), 52 states have call predecessors, (89), 52 states have return successors, (89), 72 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-08 18:41:17,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3148 states to 3148 states and 3969 transitions. [2024-11-08 18:41:17,474 INFO L78 Accepts]: Start accepts. Automaton has 3148 states and 3969 transitions. Word has length 118 [2024-11-08 18:41:17,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:41:17,474 INFO L471 AbstractCegarLoop]: Abstraction has 3148 states and 3969 transitions. [2024-11-08 18:41:17,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.7222222222222223) internal successors, (67), 17 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 18:41:17,475 INFO L276 IsEmpty]: Start isEmpty. Operand 3148 states and 3969 transitions. [2024-11-08 18:41:17,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-08 18:41:17,476 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:41:17,476 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:41:17,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (58)] Forceful destruction successful, exit code 0 [2024-11-08 18:41:17,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Forceful destruction successful, exit code 0 [2024-11-08 18:41:17,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:41:17,877 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:41:17,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:41:17,877 INFO L85 PathProgramCache]: Analyzing trace with hash 210046177, now seen corresponding path program 1 times [2024-11-08 18:41:17,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:41:17,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1948161221] [2024-11-08 18:41:17,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:41:17,878 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 18:41:17,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:41:17,883 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:41:17,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (60)] Waiting until timeout for monitored process [2024-11-08 18:41:18,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:18,245 INFO L255 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:41:18,246 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:41:18,291 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-08 18:41:18,291 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:41:18,291 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:41:18,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1948161221] [2024-11-08 18:41:18,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1948161221] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:41:18,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:41:18,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:41:18,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19760546] [2024-11-08 18:41:18,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:41:18,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:41:18,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:41:18,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:41:18,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:41:18,292 INFO L87 Difference]: Start difference. First operand 3148 states and 3969 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, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 18:41:18,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:41:18,935 INFO L93 Difference]: Finished difference Result 5975 states and 7551 transitions. [2024-11-08 18:41:18,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:41:18,935 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, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 118 [2024-11-08 18:41:18,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:41:18,939 INFO L225 Difference]: With dead ends: 5975 [2024-11-08 18:41:18,939 INFO L226 Difference]: Without dead ends: 3148 [2024-11-08 18:41:18,940 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 115 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 18:41:18,940 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 0 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:41:18,941 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 406 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:41:18,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3148 states. [2024-11-08 18:41:19,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3148 to 3148. [2024-11-08 18:41:19,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3148 states, 3006 states have (on average 1.2584830339321358) internal successors, (3783), 3023 states have internal predecessors, (3783), 89 states have call successors, (89), 52 states have call predecessors, (89), 52 states have return successors, (89), 72 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-08 18:41:19,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3148 states to 3148 states and 3961 transitions. [2024-11-08 18:41:19,421 INFO L78 Accepts]: Start accepts. Automaton has 3148 states and 3961 transitions. Word has length 118 [2024-11-08 18:41:19,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:41:19,421 INFO L471 AbstractCegarLoop]: Abstraction has 3148 states and 3961 transitions. [2024-11-08 18:41:19,421 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, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 18:41:19,421 INFO L276 IsEmpty]: Start isEmpty. Operand 3148 states and 3961 transitions. [2024-11-08 18:41:19,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-08 18:41:19,423 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:41:19,423 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:41:19,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (60)] Forceful destruction successful, exit code 0 [2024-11-08 18:41:19,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:41:19,623 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:41:19,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:41:19,624 INFO L85 PathProgramCache]: Analyzing trace with hash -712099435, now seen corresponding path program 1 times [2024-11-08 18:41:19,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:41:19,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [340200673] [2024-11-08 18:41:19,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:41:19,624 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 18:41:19,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:41:19,625 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:41:19,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (61)] Waiting until timeout for monitored process [2024-11-08 18:41:19,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:19,993 INFO L255 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 18:41:19,995 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:41:20,578 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:41:20,578 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 52 [2024-11-08 18:41:20,711 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:41:20,711 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:41:20,711 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:41:20,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [340200673] [2024-11-08 18:41:20,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [340200673] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:41:20,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:41:20,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-08 18:41:20,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632515666] [2024-11-08 18:41:20,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:41:20,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 18:41:20,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:41:20,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 18:41:20,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:41:20,713 INFO L87 Difference]: Start difference. First operand 3148 states and 3961 transitions. Second operand has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:41:25,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:41:25,241 INFO L93 Difference]: Finished difference Result 7665 states and 9675 transitions. [2024-11-08 18:41:25,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 18:41:25,241 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 119 [2024-11-08 18:41:25,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:41:25,246 INFO L225 Difference]: With dead ends: 7665 [2024-11-08 18:41:25,246 INFO L226 Difference]: Without dead ends: 5122 [2024-11-08 18:41:25,247 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:41:25,248 INFO L432 NwaCegarLoop]: 212 mSDtfsCounter, 156 mSDsluCounter, 1114 mSDsCounter, 0 mSdLazyCounter, 801 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 1326 SdHoareTripleChecker+Invalid, 809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:41:25,248 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 1326 Invalid, 809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 801 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-08 18:41:25,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5122 states. [2024-11-08 18:41:25,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5122 to 3578. [2024-11-08 18:41:25,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3578 states, 3436 states have (on average 1.2662980209545984) internal successors, (4351), 3453 states have internal predecessors, (4351), 89 states have call successors, (89), 52 states have call predecessors, (89), 52 states have return successors, (89), 72 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-08 18:41:25,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3578 states to 3578 states and 4529 transitions. [2024-11-08 18:41:25,822 INFO L78 Accepts]: Start accepts. Automaton has 3578 states and 4529 transitions. Word has length 119 [2024-11-08 18:41:25,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:41:25,823 INFO L471 AbstractCegarLoop]: Abstraction has 3578 states and 4529 transitions. [2024-11-08 18:41:25,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:41:25,823 INFO L276 IsEmpty]: Start isEmpty. Operand 3578 states and 4529 transitions. [2024-11-08 18:41:25,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-08 18:41:25,825 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:41:25,825 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:41:25,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (61)] Forceful destruction successful, exit code 0 [2024-11-08 18:41:26,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:41:26,026 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:41:26,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:41:26,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1105126445, now seen corresponding path program 1 times [2024-11-08 18:41:26,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:41:26,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1641497573] [2024-11-08 18:41:26,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:41:26,027 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 18:41:26,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:41:26,028 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:41:26,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (62)] Waiting until timeout for monitored process [2024-11-08 18:41:26,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:26,452 INFO L255 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-08 18:41:26,455 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:41:26,460 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 18:41:26,578 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 31 treesize of output 15 [2024-11-08 18:41:26,927 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:41:26,927 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 42 treesize of output 29 [2024-11-08 18:41:27,163 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:41:27,163 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 40 [2024-11-08 18:41:27,434 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:41:27,434 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 49 treesize of output 43 [2024-11-08 18:41:27,975 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:41:27,976 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 63 treesize of output 27 [2024-11-08 18:41:28,235 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 143 proven. 18 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-08 18:41:28,235 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:41:28,963 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:41:28,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1641497573] [2024-11-08 18:41:28,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1641497573] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:41:28,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829217034] [2024-11-08 18:41:28,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:41:28,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:41:28,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:41:28,965 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:41:28,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2024-11-08 18:41:29,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:29,309 INFO L255 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-08 18:41:29,313 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:41:29,361 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 31 treesize of output 15 [2024-11-08 18:41:29,513 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:41:29,513 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 37 treesize of output 39 [2024-11-08 18:41:30,003 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:41:30,003 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 48 treesize of output 53 [2024-11-08 18:41:30,357 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:41:30,357 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 59 treesize of output 56 [2024-11-08 18:41:31,525 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:41:31,526 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 83 treesize of output 35 [2024-11-08 18:41:39,713 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 151 proven. 18 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-11-08 18:41:39,713 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:41:41,511 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 24 proven. 9 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-08 18:41:41,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [829217034] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:41:41,512 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:41:41,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17, 11] total 31 [2024-11-08 18:41:41,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959286971] [2024-11-08 18:41:41,512 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:41:41,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-08 18:41:41,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:41:41,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-08 18:41:41,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=271, Invalid=987, Unknown=2, NotChecked=0, Total=1260 [2024-11-08 18:41:41,514 INFO L87 Difference]: Start difference. First operand 3578 states and 4529 transitions. Second operand has 31 states, 28 states have (on average 4.857142857142857) internal successors, (136), 30 states have internal predecessors, (136), 7 states have call successors, (19), 4 states have call predecessors, (19), 6 states have return successors, (19), 5 states have call predecessors, (19), 7 states have call successors, (19) [2024-11-08 18:41:49,954 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 18:41:53,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:41:53,595 INFO L93 Difference]: Finished difference Result 6996 states and 8848 transitions. [2024-11-08 18:41:53,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-08 18:41:53,596 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 28 states have (on average 4.857142857142857) internal successors, (136), 30 states have internal predecessors, (136), 7 states have call successors, (19), 4 states have call predecessors, (19), 6 states have return successors, (19), 5 states have call predecessors, (19), 7 states have call successors, (19) Word has length 119 [2024-11-08 18:41:53,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:41:53,600 INFO L225 Difference]: With dead ends: 6996 [2024-11-08 18:41:53,600 INFO L226 Difference]: Without dead ends: 4023 [2024-11-08 18:41:53,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 357 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 4 DeprecatedPredicates, 929 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=713, Invalid=2591, Unknown=2, NotChecked=0, Total=3306 [2024-11-08 18:41:53,602 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 1134 mSDsluCounter, 1082 mSDsCounter, 0 mSdLazyCounter, 1173 mSolverCounterSat, 188 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1154 SdHoareTripleChecker+Valid, 1187 SdHoareTripleChecker+Invalid, 1362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 188 IncrementalHoareTripleChecker+Valid, 1173 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:41:53,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1154 Valid, 1187 Invalid, 1362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [188 Valid, 1173 Invalid, 1 Unknown, 0 Unchecked, 9.0s Time] [2024-11-08 18:41:53,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4023 states. [2024-11-08 18:41:54,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4023 to 3268. [2024-11-08 18:41:54,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3268 states, 3126 states have (on average 1.248560460652591) internal successors, (3903), 3143 states have internal predecessors, (3903), 89 states have call successors, (89), 52 states have call predecessors, (89), 52 states have return successors, (89), 72 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-08 18:41:54,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3268 states to 3268 states and 4081 transitions. [2024-11-08 18:41:54,133 INFO L78 Accepts]: Start accepts. Automaton has 3268 states and 4081 transitions. Word has length 119 [2024-11-08 18:41:54,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:41:54,134 INFO L471 AbstractCegarLoop]: Abstraction has 3268 states and 4081 transitions. [2024-11-08 18:41:54,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 28 states have (on average 4.857142857142857) internal successors, (136), 30 states have internal predecessors, (136), 7 states have call successors, (19), 4 states have call predecessors, (19), 6 states have return successors, (19), 5 states have call predecessors, (19), 7 states have call successors, (19) [2024-11-08 18:41:54,134 INFO L276 IsEmpty]: Start isEmpty. Operand 3268 states and 4081 transitions. [2024-11-08 18:41:54,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-08 18:41:54,135 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:41:54,136 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:41:54,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Forceful destruction successful, exit code 0 [2024-11-08 18:41:54,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (62)] Forceful destruction successful, exit code 0 [2024-11-08 18:41:54,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:41:54,536 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:41:54,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:41:54,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1723216685, now seen corresponding path program 1 times [2024-11-08 18:41:54,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:41:54,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1953707264] [2024-11-08 18:41:54,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:41:54,537 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 18:41:54,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:41:54,538 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:41:54,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (64)] Waiting until timeout for monitored process [2024-11-08 18:41:54,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:54,913 INFO L255 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 18:41:54,915 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:41:55,441 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:41:55,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 20 [2024-11-08 18:41:55,538 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:41:55,538 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:41:55,538 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:41:55,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1953707264] [2024-11-08 18:41:55,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1953707264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:41:55,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:41:55,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:41:55,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381038840] [2024-11-08 18:41:55,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:41:55,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:41:55,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:41:55,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:41:55,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:41:55,540 INFO L87 Difference]: Start difference. First operand 3268 states and 4081 transitions. Second operand has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:41:58,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 18:42:02,495 WARN L539 Checker$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 18:42:07,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 18:42:12,107 WARN L539 Checker$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 18:42:14,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 18:42:14,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:42:14,721 INFO L93 Difference]: Finished difference Result 6778 states and 8410 transitions. [2024-11-08 18:42:14,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:42:14,721 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 119 [2024-11-08 18:42:14,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:42:14,727 INFO L225 Difference]: With dead ends: 6778 [2024-11-08 18:42:14,727 INFO L226 Difference]: Without dead ends: 4115 [2024-11-08 18:42:14,729 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:42:14,729 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 74 mSDsluCounter, 803 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 972 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:42:14,729 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 972 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 524 Invalid, 2 Unknown, 0 Unchecked, 18.2s Time] [2024-11-08 18:42:14,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4115 states. [2024-11-08 18:42:15,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4115 to 3494. [2024-11-08 18:42:15,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3494 states, 3352 states have (on average 1.2419451073985681) internal successors, (4163), 3369 states have internal predecessors, (4163), 89 states have call successors, (89), 52 states have call predecessors, (89), 52 states have return successors, (89), 72 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-08 18:42:15,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3494 states to 3494 states and 4341 transitions. [2024-11-08 18:42:15,298 INFO L78 Accepts]: Start accepts. Automaton has 3494 states and 4341 transitions. Word has length 119 [2024-11-08 18:42:15,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:42:15,299 INFO L471 AbstractCegarLoop]: Abstraction has 3494 states and 4341 transitions. [2024-11-08 18:42:15,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:42:15,299 INFO L276 IsEmpty]: Start isEmpty. Operand 3494 states and 4341 transitions. [2024-11-08 18:42:15,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-08 18:42:15,300 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:42:15,300 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:42:15,306 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (64)] Ended with exit code 0 [2024-11-08 18:42:15,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:42:15,501 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:42:15,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:42:15,501 INFO L85 PathProgramCache]: Analyzing trace with hash -233865196, now seen corresponding path program 1 times [2024-11-08 18:42:15,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:42:15,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1873379820] [2024-11-08 18:42:15,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:15,502 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 18:42:15,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:42:15,503 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:42:15,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (65)] Waiting until timeout for monitored process [2024-11-08 18:42:15,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:15,942 INFO L255 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-08 18:42:15,945 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:42:16,622 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:42:16,623 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 85 treesize of output 37 [2024-11-08 18:42:18,573 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:42:18,573 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:42:18,573 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:42:18,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1873379820] [2024-11-08 18:42:18,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1873379820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:42:18,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:42:18,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:42:18,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964193415] [2024-11-08 18:42:18,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:42:18,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:42:18,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:42:18,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:42:18,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:42:18,575 INFO L87 Difference]: Start difference. First operand 3494 states and 4341 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:42:24,885 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 18:42:27,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 18:42:31,675 WARN L539 Checker$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 18:42:36,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 18:42:41,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 18:42:44,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 18:42:44,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:42:44,766 INFO L93 Difference]: Finished difference Result 7287 states and 9013 transitions. [2024-11-08 18:42:44,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:42:44,767 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 120 [2024-11-08 18:42:44,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:42:44,771 INFO L225 Difference]: With dead ends: 7287 [2024-11-08 18:42:44,772 INFO L226 Difference]: Without dead ends: 4398 [2024-11-08 18:42:44,773 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:42:44,773 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 62 mSDsluCounter, 901 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 1091 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.9s IncrementalHoareTripleChecker+Time [2024-11-08 18:42:44,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 1091 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 522 Invalid, 4 Unknown, 0 Unchecked, 24.9s Time] [2024-11-08 18:42:44,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4398 states. [2024-11-08 18:42:45,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4398 to 3626. [2024-11-08 18:42:45,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3626 states, 3484 states have (on average 1.239667049368542) internal successors, (4319), 3501 states have internal predecessors, (4319), 89 states have call successors, (89), 52 states have call predecessors, (89), 52 states have return successors, (89), 72 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-08 18:42:45,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3626 states to 3626 states and 4497 transitions. [2024-11-08 18:42:45,331 INFO L78 Accepts]: Start accepts. Automaton has 3626 states and 4497 transitions. Word has length 120 [2024-11-08 18:42:45,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:42:45,331 INFO L471 AbstractCegarLoop]: Abstraction has 3626 states and 4497 transitions. [2024-11-08 18:42:45,331 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:42:45,331 INFO L276 IsEmpty]: Start isEmpty. Operand 3626 states and 4497 transitions. [2024-11-08 18:42:45,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-08 18:42:45,334 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:42:45,334 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:42:45,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (65)] Forceful destruction successful, exit code 0 [2024-11-08 18:42:45,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:42:45,535 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:42:45,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:42:45,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1940608255, now seen corresponding path program 1 times [2024-11-08 18:42:45,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:42:45,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2070546402] [2024-11-08 18:42:45,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:45,536 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 18:42:45,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:42:45,539 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:42:45,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (66)] Waiting until timeout for monitored process [2024-11-08 18:42:45,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:45,912 INFO L255 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 18:42:45,914 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:42:46,028 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-11-08 18:42:46,028 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:42:46,028 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:42:46,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2070546402] [2024-11-08 18:42:46,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2070546402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:42:46,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:42:46,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:42:46,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075221647] [2024-11-08 18:42:46,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:42:46,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:42:46,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:42:46,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:42:46,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:42:46,030 INFO L87 Difference]: Start difference. First operand 3626 states and 4497 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, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-08 18:42:46,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:42:46,932 INFO L93 Difference]: Finished difference Result 6989 states and 8675 transitions. [2024-11-08 18:42:46,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:42:46,932 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, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 120 [2024-11-08 18:42:46,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:42:46,938 INFO L225 Difference]: With dead ends: 6989 [2024-11-08 18:42:46,938 INFO L226 Difference]: Without dead ends: 3678 [2024-11-08 18:42:46,940 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:42:46,941 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 1 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:42:46,941 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 591 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:42:46,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3678 states. [2024-11-08 18:42:47,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3678 to 3626. [2024-11-08 18:42:47,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3626 states, 3484 states have (on average 1.2373708381171067) internal successors, (4311), 3501 states have internal predecessors, (4311), 89 states have call successors, (89), 52 states have call predecessors, (89), 52 states have return successors, (89), 72 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-08 18:42:47,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3626 states to 3626 states and 4489 transitions. [2024-11-08 18:42:47,519 INFO L78 Accepts]: Start accepts. Automaton has 3626 states and 4489 transitions. Word has length 120 [2024-11-08 18:42:47,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:42:47,519 INFO L471 AbstractCegarLoop]: Abstraction has 3626 states and 4489 transitions. [2024-11-08 18:42:47,519 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, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-08 18:42:47,519 INFO L276 IsEmpty]: Start isEmpty. Operand 3626 states and 4489 transitions. [2024-11-08 18:42:47,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-08 18:42:47,521 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:42:47,521 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:42:47,526 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (66)] Ended with exit code 0 [2024-11-08 18:42:47,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:42:47,721 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:42:47,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:42:47,722 INFO L85 PathProgramCache]: Analyzing trace with hash -413777027, now seen corresponding path program 1 times [2024-11-08 18:42:47,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:42:47,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1724851862] [2024-11-08 18:42:47,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:47,722 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 18:42:47,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:42:47,728 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:42:47,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (67)] Waiting until timeout for monitored process [2024-11-08 18:42:48,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:48,203 INFO L255 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-08 18:42:48,206 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:42:48,339 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 18:42:49,805 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 65 [2024-11-08 18:42:50,394 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:42:50,395 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 164 treesize of output 56 [2024-11-08 18:42:50,936 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 8 proven. 132 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-08 18:42:50,936 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:42:52,294 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:42:52,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1724851862] [2024-11-08 18:42:52,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1724851862] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:42:52,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112151769] [2024-11-08 18:42:52,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:52,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:42:52,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:42:52,295 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:42:52,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2024-11-08 18:42:52,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:52,867 INFO L255 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-08 18:42:52,871 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:42:54,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 65 [2024-11-08 18:42:54,772 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:42:54,772 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 164 treesize of output 56 [2024-11-08 18:42:54,944 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 8 proven. 138 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-08 18:42:54,944 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:42:55,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1112151769] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:42:55,447 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:42:55,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 20] total 20 [2024-11-08 18:42:55,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574038687] [2024-11-08 18:42:55,448 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:42:55,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-08 18:42:55,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:42:55,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-08 18:42:55,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=777, Unknown=0, NotChecked=0, Total=870 [2024-11-08 18:42:55,449 INFO L87 Difference]: Start difference. First operand 3626 states and 4489 transitions. Second operand has 21 states, 20 states have (on average 3.6) internal successors, (72), 19 states have internal predecessors, (72), 3 states have call successors, (12), 3 states have call predecessors, (12), 4 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-08 18:43:03,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:43:03,566 INFO L93 Difference]: Finished difference Result 3860 states and 4730 transitions. [2024-11-08 18:43:03,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-08 18:43:03,567 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.6) internal successors, (72), 19 states have internal predecessors, (72), 3 states have call successors, (12), 3 states have call predecessors, (12), 4 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 120 [2024-11-08 18:43:03,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:43:03,572 INFO L225 Difference]: With dead ends: 3860 [2024-11-08 18:43:03,572 INFO L226 Difference]: Without dead ends: 3858 [2024-11-08 18:43:03,573 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 282 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 487 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=355, Invalid=2401, Unknown=0, NotChecked=0, Total=2756 [2024-11-08 18:43:03,574 INFO L432 NwaCegarLoop]: 249 mSDtfsCounter, 324 mSDsluCounter, 2971 mSDsCounter, 0 mSdLazyCounter, 1177 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 3220 SdHoareTripleChecker+Invalid, 1216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:43:03,574 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 3220 Invalid, 1216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1177 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-08 18:43:03,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3858 states. [2024-11-08 18:43:04,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3858 to 3172. [2024-11-08 18:43:04,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3172 states, 3050 states have (on average 1.2445901639344261) internal successors, (3796), 3060 states have internal predecessors, (3796), 75 states have call successors, (75), 46 states have call predecessors, (75), 46 states have return successors, (75), 65 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-08 18:43:04,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3172 states to 3172 states and 3946 transitions. [2024-11-08 18:43:04,090 INFO L78 Accepts]: Start accepts. Automaton has 3172 states and 3946 transitions. Word has length 120 [2024-11-08 18:43:04,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:43:04,091 INFO L471 AbstractCegarLoop]: Abstraction has 3172 states and 3946 transitions. [2024-11-08 18:43:04,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.6) internal successors, (72), 19 states have internal predecessors, (72), 3 states have call successors, (12), 3 states have call predecessors, (12), 4 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-08 18:43:04,091 INFO L276 IsEmpty]: Start isEmpty. Operand 3172 states and 3946 transitions. [2024-11-08 18:43:04,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-08 18:43:04,093 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:43:04,093 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:43:04,102 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (67)] Ended with exit code 0 [2024-11-08 18:43:04,309 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Forceful destruction successful, exit code 0 [2024-11-08 18:43:04,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:43:04,494 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:43:04,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:04,495 INFO L85 PathProgramCache]: Analyzing trace with hash -2135426409, now seen corresponding path program 1 times [2024-11-08 18:43:04,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:43:04,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [592215740] [2024-11-08 18:43:04,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:04,495 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 18:43:04,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:43:04,496 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:43:04,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (69)] Waiting until timeout for monitored process [2024-11-08 18:43:04,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:04,986 INFO L255 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-08 18:43:04,989 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:43:05,118 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 18:43:05,489 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 32 [2024-11-08 18:43:06,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 65 [2024-11-08 18:43:06,987 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:43:06,987 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 194 treesize of output 80 [2024-11-08 18:43:07,334 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-08 18:43:07,334 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:43:08,158 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:43:08,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [592215740] [2024-11-08 18:43:08,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [592215740] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:43:08,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280323159] [2024-11-08 18:43:08,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:08,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:43:08,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:43:08,159 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:43:08,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2024-11-08 18:43:08,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:08,615 INFO L255 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-08 18:43:08,617 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:43:09,498 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 20 [2024-11-08 18:43:10,072 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 89 treesize of output 53 [2024-11-08 18:43:10,525 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:43:10,525 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 170 treesize of output 68 [2024-11-08 18:43:10,577 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 50 proven. 33 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-11-08 18:43:10,577 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:43:11,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [280323159] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:43:11,026 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:43:11,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 19 [2024-11-08 18:43:11,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991091503] [2024-11-08 18:43:11,026 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:43:11,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-08 18:43:11,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:43:11,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-08 18:43:11,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2024-11-08 18:43:11,027 INFO L87 Difference]: Start difference. First operand 3172 states and 3946 transitions. Second operand has 19 states, 19 states have (on average 6.894736842105263) internal successors, (131), 19 states have internal predecessors, (131), 4 states have call successors, (24), 4 states have call predecessors, (24), 5 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-08 18:43:17,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:43:17,961 INFO L93 Difference]: Finished difference Result 6420 states and 7946 transitions. [2024-11-08 18:43:17,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-08 18:43:17,962 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.894736842105263) internal successors, (131), 19 states have internal predecessors, (131), 4 states have call successors, (24), 4 states have call predecessors, (24), 5 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 121 [2024-11-08 18:43:17,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:43:17,967 INFO L225 Difference]: With dead ends: 6420 [2024-11-08 18:43:17,968 INFO L226 Difference]: Without dead ends: 6418 [2024-11-08 18:43:17,969 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 300 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=266, Invalid=1626, Unknown=0, NotChecked=0, Total=1892 [2024-11-08 18:43:17,969 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 442 mSDsluCounter, 1399 mSDsCounter, 0 mSdLazyCounter, 848 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 1509 SdHoareTripleChecker+Invalid, 899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:43:17,969 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [452 Valid, 1509 Invalid, 899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 848 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-08 18:43:17,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6418 states. [2024-11-08 18:43:18,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6418 to 4332. [2024-11-08 18:43:18,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4332 states, 4150 states have (on average 1.2549397590361446) internal successors, (5208), 4159 states have internal predecessors, (5208), 111 states have call successors, (111), 70 states have call predecessors, (111), 70 states have return successors, (111), 102 states have call predecessors, (111), 111 states have call successors, (111) [2024-11-08 18:43:18,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4332 states to 4332 states and 5430 transitions. [2024-11-08 18:43:18,615 INFO L78 Accepts]: Start accepts. Automaton has 4332 states and 5430 transitions. Word has length 121 [2024-11-08 18:43:18,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:43:18,615 INFO L471 AbstractCegarLoop]: Abstraction has 4332 states and 5430 transitions. [2024-11-08 18:43:18,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.894736842105263) internal successors, (131), 19 states have internal predecessors, (131), 4 states have call successors, (24), 4 states have call predecessors, (24), 5 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-08 18:43:18,616 INFO L276 IsEmpty]: Start isEmpty. Operand 4332 states and 5430 transitions. [2024-11-08 18:43:18,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-08 18:43:18,617 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:43:18,617 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:43:18,632 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Forceful destruction successful, exit code 0 [2024-11-08 18:43:18,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (69)] Forceful destruction successful, exit code 0 [2024-11-08 18:43:19,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:43:19,018 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:43:19,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:19,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1752283329, now seen corresponding path program 1 times [2024-11-08 18:43:19,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:43:19,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1092525925] [2024-11-08 18:43:19,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:19,019 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 18:43:19,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:43:19,020 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:43:19,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (71)] Waiting until timeout for monitored process [2024-11-08 18:43:19,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:19,443 INFO L255 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 18:43:19,445 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:43:19,616 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:43:19,616 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 86 treesize of output 44 [2024-11-08 18:43:19,685 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:43:19,685 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:43:19,685 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:43:19,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1092525925] [2024-11-08 18:43:19,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1092525925] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:19,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:43:19,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:43:19,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552712796] [2024-11-08 18:43:19,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:19,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:43:19,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:43:19,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:43:19,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:43:19,686 INFO L87 Difference]: Start difference. First operand 4332 states and 5430 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:43:21,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:43:21,863 INFO L93 Difference]: Finished difference Result 8561 states and 10765 transitions. [2024-11-08 18:43:21,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:43:21,864 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 122 [2024-11-08 18:43:21,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:43:21,869 INFO L225 Difference]: With dead ends: 8561 [2024-11-08 18:43:21,870 INFO L226 Difference]: Without dead ends: 5027 [2024-11-08 18:43:21,871 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:43:21,872 INFO L432 NwaCegarLoop]: 203 mSDtfsCounter, 97 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 773 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:43:21,872 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 773 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 18:43:21,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5027 states. [2024-11-08 18:43:22,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5027 to 4356. [2024-11-08 18:43:22,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4356 states, 4174 states have (on average 1.253473885960709) internal successors, (5232), 4183 states have internal predecessors, (5232), 111 states have call successors, (111), 70 states have call predecessors, (111), 70 states have return successors, (111), 102 states have call predecessors, (111), 111 states have call successors, (111) [2024-11-08 18:43:22,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4356 states to 4356 states and 5454 transitions. [2024-11-08 18:43:22,505 INFO L78 Accepts]: Start accepts. Automaton has 4356 states and 5454 transitions. Word has length 122 [2024-11-08 18:43:22,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:43:22,506 INFO L471 AbstractCegarLoop]: Abstraction has 4356 states and 5454 transitions. [2024-11-08 18:43:22,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:43:22,506 INFO L276 IsEmpty]: Start isEmpty. Operand 4356 states and 5454 transitions. [2024-11-08 18:43:22,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-08 18:43:22,509 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:43:22,510 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:43:22,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (71)] Forceful destruction successful, exit code 0 [2024-11-08 18:43:22,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:43:22,714 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:43:22,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:22,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1892831939, now seen corresponding path program 1 times [2024-11-08 18:43:22,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:43:22,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [277434868] [2024-11-08 18:43:22,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:22,715 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 18:43:22,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:43:22,719 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:43:22,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (72)] Waiting until timeout for monitored process [2024-11-08 18:43:23,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:23,223 INFO L255 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 18:43:23,226 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:43:23,242 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 18:43:23,369 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 18:43:23,488 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 27 treesize of output 26 [2024-11-08 18:43:23,668 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:43:23,668 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 56 treesize of output 26 [2024-11-08 18:43:23,775 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 123 proven. 9 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-11-08 18:43:23,775 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:43:24,274 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:43:24,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [277434868] [2024-11-08 18:43:24,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [277434868] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:43:24,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1691155185] [2024-11-08 18:43:24,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:24,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:43:24,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:43:24,276 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:43:24,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2024-11-08 18:43:24,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:24,645 INFO L255 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 18:43:24,648 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:43:24,723 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 18:43:24,851 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 27 treesize of output 26 [2024-11-08 18:43:25,078 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:43:25,078 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 30 [2024-11-08 18:43:25,192 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 123 proven. 9 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-11-08 18:43:25,192 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:43:25,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1691155185] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:43:25,786 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:43:25,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 11 [2024-11-08 18:43:25,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039560431] [2024-11-08 18:43:25,786 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:43:25,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 18:43:25,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:43:25,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 18:43:25,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2024-11-08 18:43:25,787 INFO L87 Difference]: Start difference. First operand 4356 states and 5454 transitions. Second operand has 11 states, 10 states have (on average 7.4) internal successors, (74), 11 states have internal predecessors, (74), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-08 18:43:29,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:43:29,458 INFO L93 Difference]: Finished difference Result 7988 states and 9956 transitions. [2024-11-08 18:43:29,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-08 18:43:29,459 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.4) internal successors, (74), 11 states have internal predecessors, (74), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 122 [2024-11-08 18:43:29,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:43:29,464 INFO L225 Difference]: With dead ends: 7988 [2024-11-08 18:43:29,464 INFO L226 Difference]: Without dead ends: 4414 [2024-11-08 18:43:29,466 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 306 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=165, Invalid=591, Unknown=0, NotChecked=0, Total=756 [2024-11-08 18:43:29,466 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 276 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:43:29,466 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 539 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 556 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-08 18:43:29,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4414 states. [2024-11-08 18:43:30,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4414 to 3956. [2024-11-08 18:43:30,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3956 states, 3774 states have (on average 1.2474827768945416) internal successors, (4708), 3783 states have internal predecessors, (4708), 111 states have call successors, (111), 70 states have call predecessors, (111), 70 states have return successors, (111), 102 states have call predecessors, (111), 111 states have call successors, (111) [2024-11-08 18:43:30,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3956 states to 3956 states and 4930 transitions. [2024-11-08 18:43:30,185 INFO L78 Accepts]: Start accepts. Automaton has 3956 states and 4930 transitions. Word has length 122 [2024-11-08 18:43:30,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:43:30,185 INFO L471 AbstractCegarLoop]: Abstraction has 3956 states and 4930 transitions. [2024-11-08 18:43:30,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.4) internal successors, (74), 11 states have internal predecessors, (74), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-08 18:43:30,185 INFO L276 IsEmpty]: Start isEmpty. Operand 3956 states and 4930 transitions. [2024-11-08 18:43:30,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-08 18:43:30,187 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:43:30,187 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:43:30,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (72)] Forceful destruction successful, exit code 0 [2024-11-08 18:43:30,401 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Ended with exit code 0 [2024-11-08 18:43:30,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:43:30,588 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:43:30,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:30,588 INFO L85 PathProgramCache]: Analyzing trace with hash 134414642, now seen corresponding path program 1 times [2024-11-08 18:43:30,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:43:30,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2001143411] [2024-11-08 18:43:30,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:30,589 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 18:43:30,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:43:30,590 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:43:30,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (74)] Waiting until timeout for monitored process [2024-11-08 18:43:31,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:31,009 INFO L255 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 18:43:31,011 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:43:31,017 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 18:43:31,308 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:43:31,309 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 21 [2024-11-08 18:43:31,356 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:43:31,356 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:43:31,356 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:43:31,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2001143411] [2024-11-08 18:43:31,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2001143411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:31,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:43:31,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:43:31,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058742575] [2024-11-08 18:43:31,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:31,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:43:31,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:43:31,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:43:31,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:43:31,358 INFO L87 Difference]: Start difference. First operand 3956 states and 4930 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:43:34,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:43:34,538 INFO L93 Difference]: Finished difference Result 8470 states and 10550 transitions. [2024-11-08 18:43:34,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:43:34,539 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 123 [2024-11-08 18:43:34,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:43:34,547 INFO L225 Difference]: With dead ends: 8470 [2024-11-08 18:43:34,548 INFO L226 Difference]: Without dead ends: 5280 [2024-11-08 18:43:34,550 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 118 SyntacticMatches, 0 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 18:43:34,550 INFO L432 NwaCegarLoop]: 264 mSDtfsCounter, 188 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 853 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:43:34,550 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 853 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-08 18:43:34,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5280 states. [2024-11-08 18:43:35,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5280 to 4060. [2024-11-08 18:43:35,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4060 states, 3878 states have (on average 1.2480660134089736) internal successors, (4840), 3887 states have internal predecessors, (4840), 111 states have call successors, (111), 70 states have call predecessors, (111), 70 states have return successors, (111), 102 states have call predecessors, (111), 111 states have call successors, (111) [2024-11-08 18:43:35,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4060 states to 4060 states and 5062 transitions. [2024-11-08 18:43:35,161 INFO L78 Accepts]: Start accepts. Automaton has 4060 states and 5062 transitions. Word has length 123 [2024-11-08 18:43:35,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:43:35,161 INFO L471 AbstractCegarLoop]: Abstraction has 4060 states and 5062 transitions. [2024-11-08 18:43:35,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:43:35,161 INFO L276 IsEmpty]: Start isEmpty. Operand 4060 states and 5062 transitions. [2024-11-08 18:43:35,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-08 18:43:35,163 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:43:35,163 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:43:35,169 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (74)] Ended with exit code 0 [2024-11-08 18:43:35,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:43:35,364 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:43:35,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:35,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1068681393, now seen corresponding path program 1 times [2024-11-08 18:43:35,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:43:35,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [501824690] [2024-11-08 18:43:35,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:35,365 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 18:43:35,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:43:35,366 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:43:35,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (75)] Waiting until timeout for monitored process [2024-11-08 18:43:35,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:35,871 INFO L255 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-08 18:43:35,875 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:43:35,881 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 18:43:36,133 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 36 treesize of output 29 [2024-11-08 18:43:36,829 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:43:36,829 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 32 [2024-11-08 18:43:37,397 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:43:37,398 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 47 treesize of output 43 [2024-11-08 18:43:38,052 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:43:38,053 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 59 treesize of output 47 [2024-11-08 18:43:39,408 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:43:39,409 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 84 treesize of output 36 [2024-11-08 18:43:39,575 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 173 proven. 18 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-11-08 18:43:39,575 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:43:41,254 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:43:41,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [501824690] [2024-11-08 18:43:41,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [501824690] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:43:41,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1819360308] [2024-11-08 18:43:41,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:41,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:43:41,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:43:41,255 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:43:41,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Waiting until timeout for monitored process [2024-11-08 18:43:41,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:41,632 INFO L255 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-08 18:43:41,635 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:43:42,119 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-11-08 18:43:42,487 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:43:42,487 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 39 [2024-11-08 18:43:42,842 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:43:42,843 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 48 treesize of output 42 [2024-11-08 18:43:43,529 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:43:43,529 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 76 treesize of output 34 [2024-11-08 18:43:43,728 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 131 proven. 9 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-08 18:43:43,728 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:43:44,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1819360308] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:43:44,945 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:43:44,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 11] total 28 [2024-11-08 18:43:44,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392098733] [2024-11-08 18:43:44,945 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:43:44,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-08 18:43:44,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:43:44,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-08 18:43:44,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=254, Invalid=1386, Unknown=0, NotChecked=0, Total=1640 [2024-11-08 18:43:44,947 INFO L87 Difference]: Start difference. First operand 4060 states and 5062 transitions. Second operand has 28 states, 25 states have (on average 4.92) internal successors, (123), 26 states have internal predecessors, (123), 8 states have call successors, (18), 6 states have call predecessors, (18), 8 states have return successors, (18), 6 states have call predecessors, (18), 8 states have call successors, (18) [2024-11-08 18:44:00,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:44:00,564 INFO L93 Difference]: Finished difference Result 8377 states and 10332 transitions. [2024-11-08 18:44:00,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-08 18:44:00,564 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 25 states have (on average 4.92) internal successors, (123), 26 states have internal predecessors, (123), 8 states have call successors, (18), 6 states have call predecessors, (18), 8 states have return successors, (18), 6 states have call predecessors, (18), 8 states have call successors, (18) Word has length 123 [2024-11-08 18:44:00,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:44:00,569 INFO L225 Difference]: With dead ends: 8377 [2024-11-08 18:44:00,569 INFO L226 Difference]: Without dead ends: 5083 [2024-11-08 18:44:00,571 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 293 SyntacticMatches, 1 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1724 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=1182, Invalid=5298, Unknown=0, NotChecked=0, Total=6480 [2024-11-08 18:44:00,572 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 896 mSDsluCounter, 1807 mSDsCounter, 0 mSdLazyCounter, 1804 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 897 SdHoareTripleChecker+Valid, 1939 SdHoareTripleChecker+Invalid, 2017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 1804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:44:00,572 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [897 Valid, 1939 Invalid, 2017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 1804 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2024-11-08 18:44:00,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5083 states. [2024-11-08 18:44:01,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5083 to 4324. [2024-11-08 18:44:01,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4324 states, 4142 states have (on average 1.2387735393529695) internal successors, (5131), 4151 states have internal predecessors, (5131), 111 states have call successors, (111), 70 states have call predecessors, (111), 70 states have return successors, (111), 102 states have call predecessors, (111), 111 states have call successors, (111) [2024-11-08 18:44:01,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4324 states to 4324 states and 5353 transitions. [2024-11-08 18:44:01,230 INFO L78 Accepts]: Start accepts. Automaton has 4324 states and 5353 transitions. Word has length 123 [2024-11-08 18:44:01,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:44:01,230 INFO L471 AbstractCegarLoop]: Abstraction has 4324 states and 5353 transitions. [2024-11-08 18:44:01,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 25 states have (on average 4.92) internal successors, (123), 26 states have internal predecessors, (123), 8 states have call successors, (18), 6 states have call predecessors, (18), 8 states have return successors, (18), 6 states have call predecessors, (18), 8 states have call successors, (18) [2024-11-08 18:44:01,230 INFO L276 IsEmpty]: Start isEmpty. Operand 4324 states and 5353 transitions. [2024-11-08 18:44:01,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-08 18:44:01,232 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:44:01,232 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:44:01,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (75)] Forceful destruction successful, exit code 0 [2024-11-08 18:44:01,447 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Ended with exit code 0 [2024-11-08 18:44:01,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:44:01,632 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:44:01,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:44:01,633 INFO L85 PathProgramCache]: Analyzing trace with hash -930968847, now seen corresponding path program 1 times [2024-11-08 18:44:01,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:44:01,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1393251673] [2024-11-08 18:44:01,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:44:01,633 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 18:44:01,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:44:01,634 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:44:01,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (77)] Waiting until timeout for monitored process [2024-11-08 18:44:02,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:02,112 INFO L255 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-08 18:44:02,116 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:44:02,200 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 18:44:02,734 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 30 [2024-11-08 18:44:03,739 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 63 [2024-11-08 18:44:04,369 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:44:04,370 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 192 treesize of output 78 [2024-11-08 18:44:04,799 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 9 proven. 107 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-08 18:44:04,799 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:44:05,978 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:44:05,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1393251673] [2024-11-08 18:44:05,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1393251673] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:44:05,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592558683] [2024-11-08 18:44:05,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:44:05,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:44:05,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:44:05,980 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:44:05,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2024-11-08 18:44:07,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:07,060 INFO L255 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-08 18:44:07,064 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:44:08,993 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 30 [2024-11-08 18:44:10,032 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 63 [2024-11-08 18:44:10,492 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:44:10,493 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 192 treesize of output 78 [2024-11-08 18:44:10,557 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 9 proven. 110 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-08 18:44:10,557 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:44:11,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1592558683] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:44:11,033 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:44:11,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 19] total 25 [2024-11-08 18:44:11,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205429372] [2024-11-08 18:44:11,033 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:44:11,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-08 18:44:11,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:44:11,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-08 18:44:11,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=881, Unknown=0, NotChecked=0, Total=992 [2024-11-08 18:44:11,034 INFO L87 Difference]: Start difference. First operand 4324 states and 5353 transitions. Second operand has 26 states, 24 states have (on average 3.5) internal successors, (84), 23 states have internal predecessors, (84), 4 states have call successors, (13), 4 states have call predecessors, (13), 5 states have return successors, (14), 2 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-08 18:44:21,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:44:21,027 INFO L93 Difference]: Finished difference Result 6396 states and 7828 transitions. [2024-11-08 18:44:21,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-08 18:44:21,028 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 3.5) internal successors, (84), 23 states have internal predecessors, (84), 4 states have call successors, (13), 4 states have call predecessors, (13), 5 states have return successors, (14), 2 states have call predecessors, (14), 4 states have call successors, (14) Word has length 123 [2024-11-08 18:44:21,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:44:21,034 INFO L225 Difference]: With dead ends: 6396 [2024-11-08 18:44:21,034 INFO L226 Difference]: Without dead ends: 6394 [2024-11-08 18:44:21,035 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 293 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 735 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=478, Invalid=2944, Unknown=0, NotChecked=0, Total=3422 [2024-11-08 18:44:21,036 INFO L432 NwaCegarLoop]: 203 mSDtfsCounter, 469 mSDsluCounter, 2833 mSDsCounter, 0 mSdLazyCounter, 1540 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 3036 SdHoareTripleChecker+Invalid, 1607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:44:21,036 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [481 Valid, 3036 Invalid, 1607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1540 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-08 18:44:21,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6394 states. [2024-11-08 18:44:21,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6394 to 3148. [2024-11-08 18:44:21,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3148 states, 3026 states have (on average 1.230998017184402) internal successors, (3725), 3036 states have internal predecessors, (3725), 75 states have call successors, (75), 46 states have call predecessors, (75), 46 states have return successors, (75), 65 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-08 18:44:21,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3148 states to 3148 states and 3875 transitions. [2024-11-08 18:44:21,543 INFO L78 Accepts]: Start accepts. Automaton has 3148 states and 3875 transitions. Word has length 123 [2024-11-08 18:44:21,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:44:21,544 INFO L471 AbstractCegarLoop]: Abstraction has 3148 states and 3875 transitions. [2024-11-08 18:44:21,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 3.5) internal successors, (84), 23 states have internal predecessors, (84), 4 states have call successors, (13), 4 states have call predecessors, (13), 5 states have return successors, (14), 2 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-08 18:44:21,544 INFO L276 IsEmpty]: Start isEmpty. Operand 3148 states and 3875 transitions. [2024-11-08 18:44:21,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-11-08 18:44:21,547 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:44:21,547 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:44:21,565 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Forceful destruction successful, exit code 0 [2024-11-08 18:44:21,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (77)] Forceful destruction successful, exit code 0 [2024-11-08 18:44:21,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:44:21,948 INFO L396 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:44:21,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:44:21,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1776216338, now seen corresponding path program 1 times [2024-11-08 18:44:21,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:44:21,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [994076213] [2024-11-08 18:44:21,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:44:21,949 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 18:44:21,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:44:21,950 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:44:21,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (79)] Waiting until timeout for monitored process [2024-11-08 18:44:22,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:22,460 INFO L255 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 18:44:22,462 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:44:22,811 INFO L134 CoverageAnalysis]: Checked inductivity of 1155 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 1138 trivial. 0 not checked. [2024-11-08 18:44:22,811 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:44:22,811 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:44:22,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [994076213] [2024-11-08 18:44:22,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [994076213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:44:22,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:44:22,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:44:22,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220559575] [2024-11-08 18:44:22,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:44:22,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:44:22,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:44:22,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:44:22,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:44:22,813 INFO L87 Difference]: Start difference. First operand 3148 states and 3875 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:44:23,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:44:23,431 INFO L93 Difference]: Finished difference Result 5331 states and 6506 transitions. [2024-11-08 18:44:23,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:44:23,433 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 211 [2024-11-08 18:44:23,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:44:23,440 INFO L225 Difference]: With dead ends: 5331 [2024-11-08 18:44:23,440 INFO L226 Difference]: Without dead ends: 2724 [2024-11-08 18:44:23,441 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:44:23,442 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 54 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:44:23,442 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 301 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:44:23,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2724 states. [2024-11-08 18:44:23,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2724 to 2519. [2024-11-08 18:44:23,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2519 states, 2397 states have (on average 1.2006675010429704) internal successors, (2878), 2407 states have internal predecessors, (2878), 75 states have call successors, (75), 46 states have call predecessors, (75), 46 states have return successors, (75), 65 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-08 18:44:23,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2519 states to 2519 states and 3028 transitions. [2024-11-08 18:44:23,970 INFO L78 Accepts]: Start accepts. Automaton has 2519 states and 3028 transitions. Word has length 211 [2024-11-08 18:44:23,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:44:23,971 INFO L471 AbstractCegarLoop]: Abstraction has 2519 states and 3028 transitions. [2024-11-08 18:44:23,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 18:44:23,971 INFO L276 IsEmpty]: Start isEmpty. Operand 2519 states and 3028 transitions. [2024-11-08 18:44:23,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-11-08 18:44:23,974 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:44:23,974 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:44:23,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (79)] Forceful destruction successful, exit code 0 [2024-11-08 18:44:24,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:44:24,174 INFO L396 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:44:24,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:44:24,175 INFO L85 PathProgramCache]: Analyzing trace with hash -939096232, now seen corresponding path program 1 times [2024-11-08 18:44:24,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:44:24,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1384690009] [2024-11-08 18:44:24,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:44:24,176 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 18:44:24,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:44:24,177 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:44:24,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (80)] Waiting until timeout for monitored process [2024-11-08 18:44:24,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:24,847 INFO L255 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-08 18:44:24,851 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:44:24,856 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 18:44:24,965 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 31 treesize of output 15 [2024-11-08 18:44:25,271 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:44:25,271 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 42 treesize of output 29 [2024-11-08 18:44:25,476 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:44:25,476 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 40 [2024-11-08 18:44:25,610 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:44:25,611 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 53 treesize of output 52 [2024-11-08 18:44:28,227 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:44:28,228 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 119 treesize of output 51 [2024-11-08 18:44:32,028 INFO L134 CoverageAnalysis]: Checked inductivity of 1155 backedges. 530 proven. 258 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2024-11-08 18:44:32,028 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:44:43,146 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:44:43,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1384690009] [2024-11-08 18:44:43,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1384690009] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:44:43,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109021693] [2024-11-08 18:44:43,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:44:43,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:44:43,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:44:43,147 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:44:43,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Waiting until timeout for monitored process [2024-11-08 18:44:43,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:43,629 INFO L255 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-08 18:44:43,634 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:44:44,178 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-11-08 18:44:45,369 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:44:45,369 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 65 treesize of output 29 [2024-11-08 18:44:45,741 INFO L134 CoverageAnalysis]: Checked inductivity of 1155 backedges. 338 proven. 9 refuted. 0 times theorem prover too weak. 808 trivial. 0 not checked. [2024-11-08 18:44:45,741 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:44:48,660 INFO L134 CoverageAnalysis]: Checked inductivity of 1155 backedges. 87 proven. 9 refuted. 0 times theorem prover too weak. 1059 trivial. 0 not checked. [2024-11-08 18:44:48,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109021693] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:44:48,661 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:44:48,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 10, 9] total 34 [2024-11-08 18:44:48,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644331017] [2024-11-08 18:44:48,661 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:44:48,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-08 18:44:48,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:44:48,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-08 18:44:48,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=318, Invalid=1752, Unknown=0, NotChecked=0, Total=2070 [2024-11-08 18:44:48,663 INFO L87 Difference]: Start difference. First operand 2519 states and 3028 transitions. Second operand has 34 states, 30 states have (on average 6.133333333333334) internal successors, (184), 33 states have internal predecessors, (184), 10 states have call successors, (37), 6 states have call predecessors, (37), 8 states have return successors, (37), 7 states have call predecessors, (37), 10 states have call successors, (37) [2024-11-08 18:45:24,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:45:24,779 INFO L93 Difference]: Finished difference Result 5899 states and 6994 transitions. [2024-11-08 18:45:24,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2024-11-08 18:45:24,780 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 30 states have (on average 6.133333333333334) internal successors, (184), 33 states have internal predecessors, (184), 10 states have call successors, (37), 6 states have call predecessors, (37), 8 states have return successors, (37), 7 states have call predecessors, (37), 10 states have call successors, (37) Word has length 220 [2024-11-08 18:45:24,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:45:24,784 INFO L225 Difference]: With dead ends: 5899 [2024-11-08 18:45:24,785 INFO L226 Difference]: Without dead ends: 3921 [2024-11-08 18:45:24,788 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 879 GetRequests, 761 SyntacticMatches, 0 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3897 ImplicationChecksByTransitivity, 36.3s TimeCoverageRelationStatistics Valid=2057, Invalid=12223, Unknown=0, NotChecked=0, Total=14280 [2024-11-08 18:45:24,788 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 1177 mSDsluCounter, 1950 mSDsCounter, 0 mSdLazyCounter, 2664 mSolverCounterSat, 251 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1179 SdHoareTripleChecker+Valid, 2082 SdHoareTripleChecker+Invalid, 2915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 251 IncrementalHoareTripleChecker+Valid, 2664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:45:24,789 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1179 Valid, 2082 Invalid, 2915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [251 Valid, 2664 Invalid, 0 Unknown, 0 Unchecked, 12.2s Time] [2024-11-08 18:45:24,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3921 states. [2024-11-08 18:45:25,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3921 to 2336. [2024-11-08 18:45:25,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2336 states, 2203 states have (on average 1.1883794825238312) internal successors, (2618), 2215 states have internal predecessors, (2618), 82 states have call successors, (82), 50 states have call predecessors, (82), 50 states have return successors, (82), 70 states have call predecessors, (82), 82 states have call successors, (82) [2024-11-08 18:45:25,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2336 states to 2336 states and 2782 transitions. [2024-11-08 18:45:25,684 INFO L78 Accepts]: Start accepts. Automaton has 2336 states and 2782 transitions. Word has length 220 [2024-11-08 18:45:25,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:45:25,684 INFO L471 AbstractCegarLoop]: Abstraction has 2336 states and 2782 transitions. [2024-11-08 18:45:25,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 30 states have (on average 6.133333333333334) internal successors, (184), 33 states have internal predecessors, (184), 10 states have call successors, (37), 6 states have call predecessors, (37), 8 states have return successors, (37), 7 states have call predecessors, (37), 10 states have call successors, (37) [2024-11-08 18:45:25,684 INFO L276 IsEmpty]: Start isEmpty. Operand 2336 states and 2782 transitions. [2024-11-08 18:45:25,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-11-08 18:45:25,686 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:45:25,686 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:45:25,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (80)] Forceful destruction successful, exit code 0 [2024-11-08 18:45:25,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Forceful destruction successful, exit code 0 [2024-11-08 18:45:26,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:45:26,087 INFO L396 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:45:26,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:45:26,087 INFO L85 PathProgramCache]: Analyzing trace with hash 2145199406, now seen corresponding path program 1 times [2024-11-08 18:45:26,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:45:26,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [676411025] [2024-11-08 18:45:26,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:45:26,089 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:45:26,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:45:26,090 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:45:26,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (82)] Waiting until timeout for monitored process [2024-11-08 18:45:26,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:45:26,874 INFO L255 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-08 18:45:26,878 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:45:26,886 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 18:45:27,169 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 41 treesize of output 19 [2024-11-08 18:45:27,653 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:45:27,654 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 47 treesize of output 43 [2024-11-08 18:45:28,594 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:45:28,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 70 treesize of output 61 [2024-11-08 18:45:29,465 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:45:29,465 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 95 treesize of output 41 [2024-11-08 18:45:29,668 INFO L134 CoverageAnalysis]: Checked inductivity of 1155 backedges. 500 proven. 18 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked. [2024-11-08 18:45:29,668 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:45:31,036 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:45:31,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [676411025] [2024-11-08 18:45:31,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [676411025] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:45:31,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [523979546] [2024-11-08 18:45:31,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:45:31,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:45:31,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:45:31,038 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:45:31,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process [2024-11-08 18:45:31,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:45:31,533 INFO L255 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 18:45:31,537 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:45:32,053 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 18:45:32,194 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 27 treesize of output 15 [2024-11-08 18:45:32,667 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:45:32,668 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 55 treesize of output 25 [2024-11-08 18:45:32,926 INFO L134 CoverageAnalysis]: Checked inductivity of 1155 backedges. 330 proven. 9 refuted. 0 times theorem prover too weak. 816 trivial. 0 not checked. [2024-11-08 18:45:32,926 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:45:34,994 INFO L134 CoverageAnalysis]: Checked inductivity of 1155 backedges. 87 proven. 9 refuted. 0 times theorem prover too weak. 1059 trivial. 0 not checked. [2024-11-08 18:45:34,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [523979546] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:45:34,994 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:45:34,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 9, 9] total 32 [2024-11-08 18:45:34,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039651769] [2024-11-08 18:45:34,995 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:45:34,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-08 18:45:34,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:45:34,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-08 18:45:34,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=244, Invalid=1238, Unknown=0, NotChecked=0, Total=1482 [2024-11-08 18:45:34,996 INFO L87 Difference]: Start difference. First operand 2336 states and 2782 transitions. Second operand has 32 states, 28 states have (on average 5.964285714285714) internal successors, (167), 31 states have internal predecessors, (167), 10 states have call successors, (26), 6 states have call predecessors, (26), 9 states have return successors, (26), 7 states have call predecessors, (26), 10 states have call successors, (26) [2024-11-08 18:45:47,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:45:47,729 INFO L93 Difference]: Finished difference Result 5483 states and 6441 transitions. [2024-11-08 18:45:47,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-11-08 18:45:47,730 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 28 states have (on average 5.964285714285714) internal successors, (167), 31 states have internal predecessors, (167), 10 states have call successors, (26), 6 states have call predecessors, (26), 9 states have return successors, (26), 7 states have call predecessors, (26), 10 states have call successors, (26) Word has length 225 [2024-11-08 18:45:47,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:45:47,732 INFO L225 Difference]: With dead ends: 5483 [2024-11-08 18:45:47,732 INFO L226 Difference]: Without dead ends: 0 [2024-11-08 18:45:47,735 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 730 GetRequests, 667 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1017 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=795, Invalid=3365, Unknown=0, NotChecked=0, Total=4160 [2024-11-08 18:45:47,735 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 483 mSDsluCounter, 1490 mSDsCounter, 0 mSdLazyCounter, 1617 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 502 SdHoareTripleChecker+Valid, 1610 SdHoareTripleChecker+Invalid, 1713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:45:47,735 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [502 Valid, 1610 Invalid, 1713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1617 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2024-11-08 18:45:47,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-08 18:45:47,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-08 18:45:47,736 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 18:45:47,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-08 18:45:47,739 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 225 [2024-11-08 18:45:47,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:45:47,740 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 18:45:47,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 28 states have (on average 5.964285714285714) internal successors, (167), 31 states have internal predecessors, (167), 10 states have call successors, (26), 6 states have call predecessors, (26), 9 states have return successors, (26), 7 states have call predecessors, (26), 10 states have call successors, (26) [2024-11-08 18:45:47,740 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-08 18:45:47,740 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 18:45:47,743 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 18:45:47,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Forceful destruction successful, exit code 0 [2024-11-08 18:45:47,951 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (82)] Ended with exit code 0 [2024-11-08 18:45:48,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cde399a-0db1-4473-97bb-12de628339ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:45:48,146 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:45:48,148 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.