./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-57.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/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_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-57.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/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_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/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 523cdc555ae18a7121d858cb3ce401c3fbc4c545022234654bee429dbd299e9d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:33:19,868 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:33:19,963 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 18:33:19,972 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:33:19,974 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:33:20,016 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:33:20,017 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:33:20,018 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:33:20,019 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:33:20,020 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:33:20,022 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:33:20,022 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:33:20,023 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:33:20,023 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:33:20,024 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:33:20,024 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:33:20,024 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:33:20,025 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:33:20,025 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:33:20,025 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:33:20,026 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:33:20,031 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:33:20,031 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:33:20,032 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:33:20,032 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:33:20,032 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:33:20,033 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:33:20,033 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:33:20,034 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:33:20,034 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:33:20,035 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:33:20,035 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:33:20,036 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:33:20,037 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:33:20,037 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:33:20,037 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:33:20,037 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:33:20,038 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:33:20,038 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:33:20,038 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:33:20,038 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:33:20,039 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:33:20,039 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_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 523cdc555ae18a7121d858cb3ce401c3fbc4c545022234654bee429dbd299e9d [2024-11-08 18:33:20,365 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:33:20,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:33:20,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:33:20,402 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:33:20,402 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:33:20,404 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-57.i Unable to find full path for "g++" [2024-11-08 18:33:22,521 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:33:22,757 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:33:22,758 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-57.i [2024-11-08 18:33:22,768 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/data/88e806285/ed7f516a63164da6b9be6edd7d4026cc/FLAG6c5a22ebc [2024-11-08 18:33:23,103 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/data/88e806285/ed7f516a63164da6b9be6edd7d4026cc [2024-11-08 18:33:23,105 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:33:23,107 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:33:23,108 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:33:23,109 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:33:23,118 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:33:23,119 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:33:23" (1/1) ... [2024-11-08 18:33:23,121 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a611275 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:33:23, skipping insertion in model container [2024-11-08 18:33:23,123 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:33:23" (1/1) ... [2024-11-08 18:33:23,154 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:33:23,414 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_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-57.i[916,929] [2024-11-08 18:33:23,517 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:33:23,530 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:33:23,547 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_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-57.i[916,929] [2024-11-08 18:33:23,600 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:33:23,634 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:33:23,635 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:33:23 WrapperNode [2024-11-08 18:33:23,635 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:33:23,638 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:33:23,638 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:33:23,639 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:33:23,645 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:33:23" (1/1) ... [2024-11-08 18:33:23,657 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:33:23" (1/1) ... [2024-11-08 18:33:23,697 INFO L138 Inliner]: procedures = 29, calls = 143, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 417 [2024-11-08 18:33:23,697 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:33:23,698 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:33:23,698 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:33:23,698 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:33:23,712 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:33:23" (1/1) ... [2024-11-08 18:33:23,712 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:33:23" (1/1) ... [2024-11-08 18:33:23,717 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:33:23" (1/1) ... [2024-11-08 18:33:23,741 INFO L175 MemorySlicer]: Split 110 memory accesses to 5 slices as follows [2, 24, 3, 72, 9]. 65 percent of accesses are in the largest equivalence class. The 15 initializations are split as follows [2, 3, 1, 8, 1]. The 17 writes are split as follows [0, 3, 1, 10, 3]. [2024-11-08 18:33:23,741 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:33:23" (1/1) ... [2024-11-08 18:33:23,741 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:33:23" (1/1) ... [2024-11-08 18:33:23,762 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:33:23" (1/1) ... [2024-11-08 18:33:23,767 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:33:23" (1/1) ... [2024-11-08 18:33:23,770 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:33:23" (1/1) ... [2024-11-08 18:33:23,775 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:33:23" (1/1) ... [2024-11-08 18:33:23,789 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:33:23,790 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:33:23,790 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:33:23,790 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:33:23,791 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:33:23" (1/1) ... [2024-11-08 18:33:23,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:33:23,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:33:23,837 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:33:23,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:33:23,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:33:23,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-08 18:33:23,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-08 18:33:23,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-08 18:33:23,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-08 18:33:23,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-08 18:33:23,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 18:33:23,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 18:33:23,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 18:33:23,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-08 18:33:23,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-08 18:33:23,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-08 18:33:23,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-08 18:33:23,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-08 18:33:23,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-08 18:33:23,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-08 18:33:23,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 18:33:23,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 18:33:23,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 18:33:23,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-08 18:33:23,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-08 18:33:23,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-08 18:33:23,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-08 18:33:23,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-08 18:33:23,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-08 18:33:23,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-08 18:33:23,895 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 18:33:23,895 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 18:33:23,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:33:23,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 18:33:23,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 18:33:23,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 18:33:23,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-08 18:33:23,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:33:23,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:33:24,100 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:33:24,102 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:33:24,645 INFO L? ?]: Removed 94 outVars from TransFormulas that were not future-live. [2024-11-08 18:33:24,645 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:33:24,661 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:33:24,662 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 18:33:24,662 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:33:24 BoogieIcfgContainer [2024-11-08 18:33:24,662 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:33:24,668 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:33:24,668 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:33:24,672 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:33:24,672 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:33:23" (1/3) ... [2024-11-08 18:33:24,673 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46ad3696 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:33:24, skipping insertion in model container [2024-11-08 18:33:24,675 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:33:23" (2/3) ... [2024-11-08 18:33:24,675 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46ad3696 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:33:24, skipping insertion in model container [2024-11-08 18:33:24,675 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:33:24" (3/3) ... [2024-11-08 18:33:24,678 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-57.i [2024-11-08 18:33:24,701 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:33:24,702 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 18:33:24,785 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:33:24,792 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;@2cfd9e5e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:33:24,792 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 18:33:24,796 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 76 states have (on average 1.394736842105263) internal successors, (106), 77 states have internal predecessors, (106), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-08 18:33:24,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-08 18:33:24,811 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:33:24,812 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:33:24,812 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:33:24,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:33:24,818 INFO L85 PathProgramCache]: Analyzing trace with hash -851259868, now seen corresponding path program 1 times [2024-11-08 18:33:24,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:33:24,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581170391] [2024-11-08 18:33:24,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:33:24,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:33:25,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:25,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:33:25,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:25,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:33:25,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:25,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 18:33:25,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:25,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 18:33:25,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:25,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 18:33:25,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:25,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 18:33:25,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:25,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 18:33:25,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:25,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 18:33:25,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:25,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 18:33:25,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:25,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 18:33:25,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:25,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 18:33:25,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:25,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:33:25,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:25,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 18:33:25,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:25,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 18:33:25,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:25,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 18:33:25,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:25,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 18:33:25,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:25,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:33:25,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:25,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 18:33:25,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:25,427 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 18:33:25,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:33:25,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581170391] [2024-11-08 18:33:25,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581170391] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:33:25,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:33:25,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:33:25,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14427212] [2024-11-08 18:33:25,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:33:25,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 18:33:25,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:33:25,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 18:33:25,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 18:33:25,472 INFO L87 Difference]: Start difference. First operand has 97 states, 76 states have (on average 1.394736842105263) internal successors, (106), 77 states have internal predecessors, (106), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 18:33:25,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:33:25,560 INFO L93 Difference]: Finished difference Result 187 states and 296 transitions. [2024-11-08 18:33:25,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 18:33:25,566 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 134 [2024-11-08 18:33:25,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:33:25,588 INFO L225 Difference]: With dead ends: 187 [2024-11-08 18:33:25,588 INFO L226 Difference]: Without dead ends: 93 [2024-11-08 18:33:25,593 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 18:33:25,597 INFO L432 NwaCegarLoop]: 135 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, 135 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 18:33:25,601 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:33:25,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-08 18:33:25,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-11-08 18:33:25,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 73 states have (on average 1.356164383561644) internal successors, (99), 73 states have internal predecessors, (99), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-08 18:33:25,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 135 transitions. [2024-11-08 18:33:25,695 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 135 transitions. Word has length 134 [2024-11-08 18:33:25,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:33:25,697 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 135 transitions. [2024-11-08 18:33:25,698 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 18:33:25,698 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 135 transitions. [2024-11-08 18:33:25,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-08 18:33:25,704 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:33:25,704 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:33:25,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:33:25,705 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:33:25,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:33:25,706 INFO L85 PathProgramCache]: Analyzing trace with hash 646378696, now seen corresponding path program 1 times [2024-11-08 18:33:25,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:33:25,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751460954] [2024-11-08 18:33:25,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:33:25,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:33:25,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:26,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:33:26,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:26,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:33:26,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:26,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 18:33:26,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:26,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 18:33:26,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:26,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 18:33:26,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:26,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 18:33:26,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:26,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 18:33:26,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:26,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 18:33:26,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:26,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 18:33:26,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:26,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 18:33:26,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:26,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 18:33:26,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:26,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:33:26,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:26,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 18:33:26,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:26,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 18:33:26,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:26,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 18:33:26,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:26,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 18:33:26,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:26,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:33:26,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:26,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 18:33:26,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:26,713 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 18:33:26,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:33:26,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751460954] [2024-11-08 18:33:26,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751460954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:33:26,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:33:26,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:33:26,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9082179] [2024-11-08 18:33:26,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:33:26,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:33:26,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:33:26,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:33:26,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:33:26,726 INFO L87 Difference]: Start difference. First operand 93 states and 135 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:33:26,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:33:26,938 INFO L93 Difference]: Finished difference Result 230 states and 337 transitions. [2024-11-08 18:33:26,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:33:26,939 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 134 [2024-11-08 18:33:26,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:33:26,942 INFO L225 Difference]: With dead ends: 230 [2024-11-08 18:33:26,942 INFO L226 Difference]: Without dead ends: 140 [2024-11-08 18:33:26,944 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:33:26,945 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 60 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:33:26,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 554 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:33:26,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2024-11-08 18:33:26,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 109. [2024-11-08 18:33:26,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 89 states have (on average 1.3820224719101124) internal successors, (123), 89 states have internal predecessors, (123), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-08 18:33:26,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 159 transitions. [2024-11-08 18:33:26,967 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 159 transitions. Word has length 134 [2024-11-08 18:33:26,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:33:26,972 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 159 transitions. [2024-11-08 18:33:26,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:33:26,973 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 159 transitions. [2024-11-08 18:33:26,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-08 18:33:26,979 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:33:26,979 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:33:26,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 18:33:26,980 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:33:26,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:33:26,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1583787760, now seen corresponding path program 1 times [2024-11-08 18:33:26,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:33:26,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006462926] [2024-11-08 18:33:26,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:33:26,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:33:27,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:27,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:33:27,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:27,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:33:27,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:27,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 18:33:27,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:27,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 18:33:27,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:27,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 18:33:27,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:27,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 18:33:27,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:27,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 18:33:27,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:27,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 18:33:27,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:27,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 18:33:27,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:27,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 18:33:27,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:27,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 18:33:27,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:27,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:33:27,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:27,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 18:33:27,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:27,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 18:33:27,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:27,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 18:33:27,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:27,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 18:33:27,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:27,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:33:27,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:27,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 18:33:27,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:27,257 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 18:33:27,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:33:27,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006462926] [2024-11-08 18:33:27,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006462926] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:33:27,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:33:27,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:33:27,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822964462] [2024-11-08 18:33:27,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:33:27,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:33:27,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:33:27,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:33:27,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:33:27,261 INFO L87 Difference]: Start difference. First operand 109 states and 159 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:33:27,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:33:27,322 INFO L93 Difference]: Finished difference Result 253 states and 371 transitions. [2024-11-08 18:33:27,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:33:27,328 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 136 [2024-11-08 18:33:27,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:33:27,330 INFO L225 Difference]: With dead ends: 253 [2024-11-08 18:33:27,330 INFO L226 Difference]: Without dead ends: 147 [2024-11-08 18:33:27,334 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 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 18:33:27,336 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 60 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:33:27,336 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 300 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:33:27,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-08 18:33:27,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 109. [2024-11-08 18:33:27,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 89 states have (on average 1.3707865168539326) internal successors, (122), 89 states have internal predecessors, (122), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-08 18:33:27,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 158 transitions. [2024-11-08 18:33:27,359 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 158 transitions. Word has length 136 [2024-11-08 18:33:27,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:33:27,360 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 158 transitions. [2024-11-08 18:33:27,360 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:33:27,360 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 158 transitions. [2024-11-08 18:33:27,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-08 18:33:27,368 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:33:27,368 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:33:27,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 18:33:27,369 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:33:27,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:33:27,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1475720450, now seen corresponding path program 1 times [2024-11-08 18:33:27,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:33:27,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58632287] [2024-11-08 18:33:27,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:33:27,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:33:27,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:27,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:33:27,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:27,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:33:27,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:27,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 18:33:27,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:27,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 18:33:27,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:27,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 18:33:27,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:27,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 18:33:27,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:27,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 18:33:27,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:27,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 18:33:27,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:27,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 18:33:27,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:27,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 18:33:27,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:27,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 18:33:27,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:27,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:33:27,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:27,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 18:33:27,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:27,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 18:33:27,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:27,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 18:33:27,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:27,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 18:33:27,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:27,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:33:27,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:27,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 18:33:27,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:27,892 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 18:33:27,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:33:27,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58632287] [2024-11-08 18:33:27,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58632287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:33:27,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:33:27,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:33:27,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855099489] [2024-11-08 18:33:27,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:33:27,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:33:27,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:33:27,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:33:27,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:33:27,898 INFO L87 Difference]: Start difference. First operand 109 states and 158 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 18:33:28,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:33:28,336 INFO L93 Difference]: Finished difference Result 306 states and 445 transitions. [2024-11-08 18:33:28,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:33:28,337 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 137 [2024-11-08 18:33:28,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:33:28,341 INFO L225 Difference]: With dead ends: 306 [2024-11-08 18:33:28,341 INFO L226 Difference]: Without dead ends: 200 [2024-11-08 18:33:28,345 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:33:28,346 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 113 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:33:28,346 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 408 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:33:28,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2024-11-08 18:33:28,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 153. [2024-11-08 18:33:28,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 114 states have (on average 1.2894736842105263) internal successors, (147), 114 states have internal predecessors, (147), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-08 18:33:28,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 219 transitions. [2024-11-08 18:33:28,393 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 219 transitions. Word has length 137 [2024-11-08 18:33:28,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:33:28,394 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 219 transitions. [2024-11-08 18:33:28,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 18:33:28,394 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 219 transitions. [2024-11-08 18:33:28,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-08 18:33:28,396 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:33:28,396 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:33:28,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 18:33:28,397 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:33:28,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:33:28,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1688788159, now seen corresponding path program 1 times [2024-11-08 18:33:28,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:33:28,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322413957] [2024-11-08 18:33:28,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:33:28,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:33:28,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:28,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:33:28,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:28,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:33:28,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:28,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 18:33:28,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:28,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 18:33:28,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:28,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 18:33:28,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:28,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 18:33:28,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:28,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 18:33:28,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:28,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 18:33:28,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:28,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 18:33:28,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:28,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 18:33:28,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:28,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 18:33:28,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:28,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:33:28,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:28,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 18:33:28,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:28,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 18:33:28,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:28,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 18:33:28,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:28,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 18:33:28,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:28,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:33:28,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:28,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 18:33:28,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:28,985 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 18:33:28,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:33:28,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322413957] [2024-11-08 18:33:28,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322413957] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:33:28,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:33:28,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:33:28,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345374995] [2024-11-08 18:33:28,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:33:28,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:33:28,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:33:28,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:33:28,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:33:28,995 INFO L87 Difference]: Start difference. First operand 153 states and 219 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:33:29,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:33:29,171 INFO L93 Difference]: Finished difference Result 307 states and 444 transitions. [2024-11-08 18:33:29,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:33:29,172 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 141 [2024-11-08 18:33:29,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:33:29,174 INFO L225 Difference]: With dead ends: 307 [2024-11-08 18:33:29,174 INFO L226 Difference]: Without dead ends: 201 [2024-11-08 18:33:29,175 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:33:29,176 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 56 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:33:29,177 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 622 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:33:29,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2024-11-08 18:33:29,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 172. [2024-11-08 18:33:29,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 133 states have (on average 1.3233082706766917) internal successors, (176), 133 states have internal predecessors, (176), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-08 18:33:29,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 248 transitions. [2024-11-08 18:33:29,199 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 248 transitions. Word has length 141 [2024-11-08 18:33:29,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:33:29,200 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 248 transitions. [2024-11-08 18:33:29,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:33:29,201 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 248 transitions. [2024-11-08 18:33:29,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-08 18:33:29,202 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:33:29,203 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:33:29,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 18:33:29,203 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:33:29,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:33:29,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1430622721, now seen corresponding path program 1 times [2024-11-08 18:33:29,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:33:29,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308042503] [2024-11-08 18:33:29,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:33:29,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:33:29,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:29,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:33:29,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:29,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:33:29,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:29,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 18:33:29,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:29,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 18:33:29,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:29,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 18:33:29,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:29,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 18:33:29,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:29,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 18:33:29,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:29,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 18:33:29,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:29,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 18:33:29,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:29,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 18:33:29,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:29,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 18:33:29,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:29,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:33:29,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:29,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 18:33:29,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:29,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 18:33:29,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:29,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 18:33:29,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:29,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 18:33:29,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:29,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:33:29,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:29,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 18:33:29,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:29,821 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 18:33:29,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:33:29,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308042503] [2024-11-08 18:33:29,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308042503] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:33:29,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:33:29,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:33:29,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878735678] [2024-11-08 18:33:29,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:33:29,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:33:29,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:33:29,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:33:29,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:33:29,825 INFO L87 Difference]: Start difference. First operand 172 states and 248 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:33:29,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:33:29,991 INFO L93 Difference]: Finished difference Result 323 states and 468 transitions. [2024-11-08 18:33:29,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 18:33:29,992 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 141 [2024-11-08 18:33:29,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:33:29,994 INFO L225 Difference]: With dead ends: 323 [2024-11-08 18:33:29,994 INFO L226 Difference]: Without dead ends: 198 [2024-11-08 18:33:29,995 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:33:29,996 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 169 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:33:29,996 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 658 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:33:29,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2024-11-08 18:33:30,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 151. [2024-11-08 18:33:30,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 112 states have (on average 1.2857142857142858) internal successors, (144), 112 states have internal predecessors, (144), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-08 18:33:30,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 216 transitions. [2024-11-08 18:33:30,015 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 216 transitions. Word has length 141 [2024-11-08 18:33:30,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:33:30,016 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 216 transitions. [2024-11-08 18:33:30,016 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:33:30,017 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 216 transitions. [2024-11-08 18:33:30,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-08 18:33:30,018 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:33:30,019 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:33:30,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 18:33:30,019 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:33:30,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:33:30,020 INFO L85 PathProgramCache]: Analyzing trace with hash 105236457, now seen corresponding path program 1 times [2024-11-08 18:33:30,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:33:30,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743079322] [2024-11-08 18:33:30,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:33:30,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:33:30,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:30,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:33:30,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:30,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:33:30,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:30,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 18:33:30,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:30,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 18:33:30,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:30,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 18:33:30,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:30,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 18:33:30,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:30,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 18:33:30,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:30,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 18:33:30,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:30,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 18:33:30,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:30,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 18:33:30,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:30,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 18:33:30,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:30,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:33:30,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:30,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 18:33:30,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:30,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 18:33:30,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:30,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 18:33:30,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:30,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 18:33:30,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:30,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:33:30,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:30,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 18:33:30,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:30,727 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 18:33:30,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:33:30,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743079322] [2024-11-08 18:33:30,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743079322] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:33:30,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:33:30,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:33:30,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528161383] [2024-11-08 18:33:30,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:33:30,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:33:30,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:33:30,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:33:30,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:33:30,730 INFO L87 Difference]: Start difference. First operand 151 states and 216 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:33:30,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:33:30,861 INFO L93 Difference]: Finished difference Result 301 states and 431 transitions. [2024-11-08 18:33:30,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:33:30,862 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 144 [2024-11-08 18:33:30,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:33:30,864 INFO L225 Difference]: With dead ends: 301 [2024-11-08 18:33:30,864 INFO L226 Difference]: Without dead ends: 197 [2024-11-08 18:33:30,865 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:33:30,866 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 53 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:33:30,866 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 476 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:33:30,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2024-11-08 18:33:30,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 194. [2024-11-08 18:33:30,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 152 states have (on average 1.3157894736842106) internal successors, (200), 153 states have internal predecessors, (200), 38 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-08 18:33:30,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 276 transitions. [2024-11-08 18:33:30,889 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 276 transitions. Word has length 144 [2024-11-08 18:33:30,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:33:30,889 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 276 transitions. [2024-11-08 18:33:30,890 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:33:30,890 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 276 transitions. [2024-11-08 18:33:30,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-08 18:33:30,892 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:33:30,892 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:33:30,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 18:33:30,892 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:33:30,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:33:30,893 INFO L85 PathProgramCache]: Analyzing trace with hash -595828121, now seen corresponding path program 1 times [2024-11-08 18:33:30,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:33:30,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546759069] [2024-11-08 18:33:30,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:33:30,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:33:30,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:31,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:33:31,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:31,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:33:31,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:31,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 18:33:31,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:31,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 18:33:31,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:31,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 18:33:31,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:31,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 18:33:31,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:31,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 18:33:31,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:31,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 18:33:31,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:31,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 18:33:31,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:31,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 18:33:31,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:31,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 18:33:31,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:31,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:33:31,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:31,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 18:33:31,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:31,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 18:33:31,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:31,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 18:33:31,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:31,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 18:33:31,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:31,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:33:31,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:31,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 18:33:31,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:31,621 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 18:33:31,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:33:31,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546759069] [2024-11-08 18:33:31,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546759069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:33:31,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:33:31,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:33:31,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904990590] [2024-11-08 18:33:31,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:33:31,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:33:31,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:33:31,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:33:31,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:33:31,624 INFO L87 Difference]: Start difference. First operand 194 states and 276 transitions. Second operand has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 18:33:31,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:33:31,825 INFO L93 Difference]: Finished difference Result 440 states and 626 transitions. [2024-11-08 18:33:31,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:33:31,827 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 144 [2024-11-08 18:33:31,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:33:31,832 INFO L225 Difference]: With dead ends: 440 [2024-11-08 18:33:31,833 INFO L226 Difference]: Without dead ends: 293 [2024-11-08 18:33:31,833 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:33:31,834 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 142 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:33:31,835 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 490 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:33:31,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2024-11-08 18:33:31,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 290. [2024-11-08 18:33:31,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 240 states have (on average 1.3458333333333334) internal successors, (323), 243 states have internal predecessors, (323), 44 states have call successors, (44), 5 states have call predecessors, (44), 5 states have return successors, (44), 41 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-08 18:33:31,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 411 transitions. [2024-11-08 18:33:31,873 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 411 transitions. Word has length 144 [2024-11-08 18:33:31,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:33:31,874 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 411 transitions. [2024-11-08 18:33:31,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 18:33:31,874 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 411 transitions. [2024-11-08 18:33:31,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-08 18:33:31,876 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:33:31,877 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:33:31,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 18:33:31,877 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:33:31,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:33:31,878 INFO L85 PathProgramCache]: Analyzing trace with hash 324091175, now seen corresponding path program 1 times [2024-11-08 18:33:31,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:33:31,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244984732] [2024-11-08 18:33:31,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:33:31,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:33:32,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:04,037 WARN L286 SmtUtils]: Spent 5.19s on a formula simplification. DAG size of input: 664 DAG size of output: 661 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-08 18:34:04,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:34:04,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:04,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:34:04,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:04,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 18:34:04,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:04,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 18:34:04,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:04,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 18:34:04,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:04,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 18:34:04,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:04,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 18:34:04,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:04,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 18:34:04,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:04,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 18:34:04,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:04,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 18:34:04,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:04,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 18:34:04,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:04,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:34:04,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:04,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 18:34:04,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:04,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 18:34:04,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:04,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 18:34:04,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:04,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 18:34:04,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:04,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:34:04,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:04,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 18:34:04,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:04,161 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 18:34:04,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:34:04,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244984732] [2024-11-08 18:34:04,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244984732] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:34:04,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:34:04,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:34:04,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681433852] [2024-11-08 18:34:04,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:34:04,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:34:04,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:34:04,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:34:04,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:34:04,164 INFO L87 Difference]: Start difference. First operand 290 states and 411 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:34:14,962 WARN L286 SmtUtils]: Spent 5.04s on a formula simplification that was a NOOP. DAG size: 663 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-08 18:34:20,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:34:20,574 INFO L93 Difference]: Finished difference Result 606 states and 852 transitions. [2024-11-08 18:34:20,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:34:20,577 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 144 [2024-11-08 18:34:20,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:34:20,580 INFO L225 Difference]: With dead ends: 606 [2024-11-08 18:34:20,580 INFO L226 Difference]: Without dead ends: 363 [2024-11-08 18:34:20,581 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 20.4s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:34:20,582 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 61 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:34:20,582 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 679 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 18:34:20,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2024-11-08 18:34:20,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 360. [2024-11-08 18:34:20,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 299 states have (on average 1.3244147157190636) internal successors, (396), 303 states have internal predecessors, (396), 52 states have call successors, (52), 8 states have call predecessors, (52), 8 states have return successors, (52), 48 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-08 18:34:20,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 500 transitions. [2024-11-08 18:34:20,719 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 500 transitions. Word has length 144 [2024-11-08 18:34:20,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:34:20,720 INFO L471 AbstractCegarLoop]: Abstraction has 360 states and 500 transitions. [2024-11-08 18:34:20,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:34:20,720 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 500 transitions. [2024-11-08 18:34:20,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-08 18:34:20,722 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:34:20,723 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:34:20,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 18:34:20,723 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:34:20,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:20,724 INFO L85 PathProgramCache]: Analyzing trace with hash 957218129, now seen corresponding path program 1 times [2024-11-08 18:34:20,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:34:20,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791928518] [2024-11-08 18:34:20,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:20,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:34:20,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:20,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:34:20,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:20,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:34:20,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:20,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 18:34:20,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:20,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 18:34:20,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:20,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 18:34:20,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:20,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 18:34:20,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:20,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 18:34:20,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:20,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 18:34:21,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:21,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 18:34:21,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:21,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 18:34:21,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:21,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 18:34:21,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:21,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:34:21,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:21,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 18:34:21,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:21,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 18:34:21,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:21,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 18:34:21,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:21,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 18:34:21,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:21,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:34:21,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:21,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 18:34:21,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:21,023 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 18:34:21,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:34:21,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791928518] [2024-11-08 18:34:21,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791928518] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:34:21,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:34:21,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:34:21,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344604627] [2024-11-08 18:34:21,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:34:21,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:34:21,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:34:21,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:34:21,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:34:21,026 INFO L87 Difference]: Start difference. First operand 360 states and 500 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:34:21,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:34:21,390 INFO L93 Difference]: Finished difference Result 870 states and 1214 transitions. [2024-11-08 18:34:21,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:34:21,391 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-11-08 18:34:21,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:34:21,398 INFO L225 Difference]: With dead ends: 870 [2024-11-08 18:34:21,399 INFO L226 Difference]: Without dead ends: 557 [2024-11-08 18:34:21,399 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:34:21,400 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 81 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:34:21,400 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 533 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:34:21,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-11-08 18:34:21,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 382. [2024-11-08 18:34:21,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 321 states have (on average 1.3364485981308412) internal successors, (429), 325 states have internal predecessors, (429), 52 states have call successors, (52), 8 states have call predecessors, (52), 8 states have return successors, (52), 48 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-08 18:34:21,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 533 transitions. [2024-11-08 18:34:21,598 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 533 transitions. Word has length 145 [2024-11-08 18:34:21,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:34:21,598 INFO L471 AbstractCegarLoop]: Abstraction has 382 states and 533 transitions. [2024-11-08 18:34:21,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:34:21,599 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 533 transitions. [2024-11-08 18:34:21,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-08 18:34:21,602 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:34:21,602 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:34:21,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 18:34:21,602 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:34:21,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:21,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1951545773, now seen corresponding path program 1 times [2024-11-08 18:34:21,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:34:21,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427908997] [2024-11-08 18:34:21,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:21,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:34:21,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:21,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:34:21,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:21,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:34:21,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:21,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 18:34:21,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:21,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 18:34:21,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:21,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 18:34:21,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:21,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 18:34:21,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:21,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 18:34:21,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:21,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 18:34:21,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:21,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 18:34:21,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:21,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 18:34:21,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:21,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 18:34:21,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:21,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:34:21,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:21,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 18:34:21,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:21,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 18:34:21,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:21,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 18:34:21,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:21,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 18:34:21,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:21,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:34:21,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:21,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 18:34:21,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:21,954 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 18:34:21,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:34:21,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427908997] [2024-11-08 18:34:21,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427908997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:34:21,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:34:21,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:34:21,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304128755] [2024-11-08 18:34:21,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:34:21,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:34:21,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:34:21,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:34:21,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:34:21,958 INFO L87 Difference]: Start difference. First operand 382 states and 533 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:34:22,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:34:22,300 INFO L93 Difference]: Finished difference Result 793 states and 1110 transitions. [2024-11-08 18:34:22,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:34:22,300 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-11-08 18:34:22,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:34:22,303 INFO L225 Difference]: With dead ends: 793 [2024-11-08 18:34:22,306 INFO L226 Difference]: Without dead ends: 458 [2024-11-08 18:34:22,307 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:34:22,307 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 73 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 819 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:34:22,307 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 819 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:34:22,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2024-11-08 18:34:22,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 399. [2024-11-08 18:34:22,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 338 states have (on average 1.334319526627219) internal successors, (451), 342 states have internal predecessors, (451), 52 states have call successors, (52), 8 states have call predecessors, (52), 8 states have return successors, (52), 48 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-08 18:34:22,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 555 transitions. [2024-11-08 18:34:22,529 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 555 transitions. Word has length 145 [2024-11-08 18:34:22,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:34:22,529 INFO L471 AbstractCegarLoop]: Abstraction has 399 states and 555 transitions. [2024-11-08 18:34:22,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:34:22,530 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 555 transitions. [2024-11-08 18:34:22,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-08 18:34:22,532 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:34:22,532 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:34:22,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 18:34:22,532 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:34:22,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:22,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1063557845, now seen corresponding path program 1 times [2024-11-08 18:34:22,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:34:22,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459976957] [2024-11-08 18:34:22,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:22,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:34:22,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:23,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:34:23,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:23,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:34:23,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:23,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 18:34:23,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:23,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 18:34:23,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:23,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 18:34:23,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:23,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 18:34:23,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:23,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 18:34:23,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:23,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 18:34:23,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:23,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 18:34:23,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:23,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 18:34:23,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:23,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 18:34:23,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:23,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:34:23,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:23,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 18:34:23,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:23,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 18:34:23,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:23,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 18:34:23,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:23,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 18:34:23,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:23,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:34:23,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:23,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 18:34:23,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:23,044 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 18:34:23,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:34:23,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459976957] [2024-11-08 18:34:23,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459976957] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:34:23,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:34:23,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:34:23,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717237706] [2024-11-08 18:34:23,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:34:23,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:34:23,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:34:23,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:34:23,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:34:23,046 INFO L87 Difference]: Start difference. First operand 399 states and 555 transitions. Second operand has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 18:34:23,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:34:23,399 INFO L93 Difference]: Finished difference Result 756 states and 1051 transitions. [2024-11-08 18:34:23,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:34:23,400 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 145 [2024-11-08 18:34:23,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:34:23,403 INFO L225 Difference]: With dead ends: 756 [2024-11-08 18:34:23,403 INFO L226 Difference]: Without dead ends: 404 [2024-11-08 18:34:23,404 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:34:23,405 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 62 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:34:23,405 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 629 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:34:23,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2024-11-08 18:34:23,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 400. [2024-11-08 18:34:23,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 339 states have (on average 1.3303834808259587) internal successors, (451), 343 states have internal predecessors, (451), 52 states have call successors, (52), 8 states have call predecessors, (52), 8 states have return successors, (52), 48 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-08 18:34:23,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 555 transitions. [2024-11-08 18:34:23,580 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 555 transitions. Word has length 145 [2024-11-08 18:34:23,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:34:23,582 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 555 transitions. [2024-11-08 18:34:23,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 18:34:23,582 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 555 transitions. [2024-11-08 18:34:23,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-08 18:34:23,584 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:34:23,584 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:34:23,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 18:34:23,584 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:34:23,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:23,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1928913519, now seen corresponding path program 1 times [2024-11-08 18:34:23,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:34:23,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865781695] [2024-11-08 18:34:23,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:23,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:34:23,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:23,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:34:23,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:23,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:34:23,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:23,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 18:34:24,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:24,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 18:34:24,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:24,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 18:34:24,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:24,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 18:34:24,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:24,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 18:34:24,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:24,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 18:34:24,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:24,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 18:34:24,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:24,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 18:34:24,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:24,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 18:34:24,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:24,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:34:24,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:24,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 18:34:24,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:24,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 18:34:24,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:24,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 18:34:24,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:24,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 18:34:24,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:24,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:34:24,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:24,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 18:34:24,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:24,036 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 18:34:24,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:34:24,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865781695] [2024-11-08 18:34:24,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865781695] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:34:24,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:34:24,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:34:24,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492568722] [2024-11-08 18:34:24,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:34:24,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:34:24,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:34:24,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:34:24,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:34:24,040 INFO L87 Difference]: Start difference. First operand 400 states and 555 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:34:24,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:34:24,411 INFO L93 Difference]: Finished difference Result 824 states and 1141 transitions. [2024-11-08 18:34:24,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:34:24,412 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-11-08 18:34:24,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:34:24,415 INFO L225 Difference]: With dead ends: 824 [2024-11-08 18:34:24,415 INFO L226 Difference]: Without dead ends: 471 [2024-11-08 18:34:24,416 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:34:24,417 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 62 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:34:24,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 716 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:34:24,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2024-11-08 18:34:24,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 407. [2024-11-08 18:34:24,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 346 states have (on average 1.3323699421965318) internal successors, (461), 350 states have internal predecessors, (461), 52 states have call successors, (52), 8 states have call predecessors, (52), 8 states have return successors, (52), 48 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-08 18:34:24,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 565 transitions. [2024-11-08 18:34:24,602 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 565 transitions. Word has length 145 [2024-11-08 18:34:24,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:34:24,602 INFO L471 AbstractCegarLoop]: Abstraction has 407 states and 565 transitions. [2024-11-08 18:34:24,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:34:24,603 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 565 transitions. [2024-11-08 18:34:24,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-08 18:34:24,605 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:34:24,605 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:34:24,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 18:34:24,606 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:34:24,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:24,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1086190099, now seen corresponding path program 1 times [2024-11-08 18:34:24,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:34:24,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409278570] [2024-11-08 18:34:24,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:24,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:34:24,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:25,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:34:25,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:25,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:34:25,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:25,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 18:34:25,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:25,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 18:34:25,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:25,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 18:34:25,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:25,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 18:34:25,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:25,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 18:34:25,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:25,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 18:34:25,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:25,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 18:34:25,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:25,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 18:34:25,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:25,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 18:34:25,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:25,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:34:25,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:25,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 18:34:25,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:25,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 18:34:25,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:25,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 18:34:25,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:25,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 18:34:25,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:25,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:34:25,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:25,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 18:34:25,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:25,066 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 18:34:25,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:34:25,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409278570] [2024-11-08 18:34:25,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409278570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:34:25,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:34:25,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:34:25,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389743088] [2024-11-08 18:34:25,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:34:25,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:34:25,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:34:25,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:34:25,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:34:25,069 INFO L87 Difference]: Start difference. First operand 407 states and 565 transitions. Second operand has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 18:34:25,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:34:25,557 INFO L93 Difference]: Finished difference Result 852 states and 1178 transitions. [2024-11-08 18:34:25,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:34:25,558 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 145 [2024-11-08 18:34:25,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:34:25,561 INFO L225 Difference]: With dead ends: 852 [2024-11-08 18:34:25,561 INFO L226 Difference]: Without dead ends: 492 [2024-11-08 18:34:25,562 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:34:25,563 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 71 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 706 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:34:25,563 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 706 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:34:25,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2024-11-08 18:34:25,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 443. [2024-11-08 18:34:25,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 378 states have (on average 1.3148148148148149) internal successors, (497), 383 states have internal predecessors, (497), 54 states have call successors, (54), 10 states have call predecessors, (54), 10 states have return successors, (54), 49 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-08 18:34:25,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 605 transitions. [2024-11-08 18:34:25,796 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 605 transitions. Word has length 145 [2024-11-08 18:34:25,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:34:25,797 INFO L471 AbstractCegarLoop]: Abstraction has 443 states and 605 transitions. [2024-11-08 18:34:25,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 18:34:25,797 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 605 transitions. [2024-11-08 18:34:25,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-08 18:34:25,800 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:34:25,800 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:34:25,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 18:34:25,801 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:34:25,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:25,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1353018697, now seen corresponding path program 1 times [2024-11-08 18:34:25,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:34:25,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427447269] [2024-11-08 18:34:25,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:25,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:34:25,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:25,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:34:25,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:25,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:34:25,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:25,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 18:34:25,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:25,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 18:34:25,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:25,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 18:34:25,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:25,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 18:34:25,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:25,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 18:34:25,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:25,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 18:34:25,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:25,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 18:34:25,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:25,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 18:34:25,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:25,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 18:34:25,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:25,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:34:25,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:25,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 18:34:25,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:25,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 18:34:25,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:25,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 18:34:25,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:25,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 18:34:25,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:25,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:34:25,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:25,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 18:34:25,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:25,921 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 18:34:25,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:34:25,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427447269] [2024-11-08 18:34:25,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427447269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:34:25,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:34:25,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:34:25,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246113427] [2024-11-08 18:34:25,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:34:25,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:34:25,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:34:25,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:34:25,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:34:25,925 INFO L87 Difference]: Start difference. First operand 443 states and 605 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:34:26,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:34:26,178 INFO L93 Difference]: Finished difference Result 837 states and 1147 transitions. [2024-11-08 18:34:26,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:34:26,179 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 147 [2024-11-08 18:34:26,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:34:26,181 INFO L225 Difference]: With dead ends: 837 [2024-11-08 18:34:26,181 INFO L226 Difference]: Without dead ends: 445 [2024-11-08 18:34:26,182 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 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 18:34:26,184 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 0 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 259 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 18:34:26,185 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 259 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:34:26,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2024-11-08 18:34:26,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 445. [2024-11-08 18:34:26,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 380 states have (on average 1.313157894736842) internal successors, (499), 385 states have internal predecessors, (499), 54 states have call successors, (54), 10 states have call predecessors, (54), 10 states have return successors, (54), 49 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-08 18:34:26,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 607 transitions. [2024-11-08 18:34:26,397 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 607 transitions. Word has length 147 [2024-11-08 18:34:26,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:34:26,398 INFO L471 AbstractCegarLoop]: Abstraction has 445 states and 607 transitions. [2024-11-08 18:34:26,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:34:26,398 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 607 transitions. [2024-11-08 18:34:26,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-08 18:34:26,400 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:34:26,400 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:34:26,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 18:34:26,401 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:34:26,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:26,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1605665907, now seen corresponding path program 1 times [2024-11-08 18:34:26,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:34:26,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292329344] [2024-11-08 18:34:26,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:26,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:34:26,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:28,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:34:28,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:28,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:34:28,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:28,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 18:34:28,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:28,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 18:34:28,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:28,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 18:34:28,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:28,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 18:34:28,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:28,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 18:34:28,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:28,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 18:34:28,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:28,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 18:34:28,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:28,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 18:34:28,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:28,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 18:34:28,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:28,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:34:28,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:28,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 18:34:28,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:28,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 18:34:28,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:28,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 18:34:28,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:28,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 18:34:28,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:28,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:34:28,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:28,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 18:34:28,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:28,579 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 18:34:28,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:34:28,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292329344] [2024-11-08 18:34:28,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292329344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:34:28,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:34:28,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:34:28,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870453326] [2024-11-08 18:34:28,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:34:28,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:34:28,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:34:28,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:34:28,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:34:28,581 INFO L87 Difference]: Start difference. First operand 445 states and 607 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:34:29,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:34:29,535 INFO L93 Difference]: Finished difference Result 1202 states and 1636 transitions. [2024-11-08 18:34:29,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:34:29,536 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 147 [2024-11-08 18:34:29,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:34:29,540 INFO L225 Difference]: With dead ends: 1202 [2024-11-08 18:34:29,540 INFO L226 Difference]: Without dead ends: 808 [2024-11-08 18:34:29,543 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:34:29,544 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 68 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:34:29,545 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 826 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:34:29,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states. [2024-11-08 18:34:29,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 805. [2024-11-08 18:34:29,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 805 states, 706 states have (on average 1.3144475920679888) internal successors, (928), 717 states have internal predecessors, (928), 80 states have call successors, (80), 18 states have call predecessors, (80), 18 states have return successors, (80), 69 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-08 18:34:29,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 805 states to 805 states and 1088 transitions. [2024-11-08 18:34:29,871 INFO L78 Accepts]: Start accepts. Automaton has 805 states and 1088 transitions. Word has length 147 [2024-11-08 18:34:29,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:34:29,871 INFO L471 AbstractCegarLoop]: Abstraction has 805 states and 1088 transitions. [2024-11-08 18:34:29,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:34:29,872 INFO L276 IsEmpty]: Start isEmpty. Operand 805 states and 1088 transitions. [2024-11-08 18:34:29,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-08 18:34:29,874 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:34:29,874 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:34:29,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 18:34:29,875 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:34:29,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:29,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1603818865, now seen corresponding path program 1 times [2024-11-08 18:34:29,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:34:29,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001285027] [2024-11-08 18:34:29,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:29,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:34:29,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:34:29,979 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:34:30,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:34:30,177 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:34:30,179 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 18:34:30,180 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 18:34:30,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 18:34:30,186 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:34:30,312 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 18:34:30,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 06:34:30 BoogieIcfgContainer [2024-11-08 18:34:30,315 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 18:34:30,315 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 18:34:30,316 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 18:34:30,316 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 18:34:30,316 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:33:24" (3/4) ... [2024-11-08 18:34:30,319 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 18:34:30,320 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 18:34:30,320 INFO L158 Benchmark]: Toolchain (without parser) took 67213.71ms. Allocated memory was 157.3MB in the beginning and 794.8MB in the end (delta: 637.5MB). Free memory was 119.1MB in the beginning and 575.3MB in the end (delta: -456.2MB). Peak memory consumption was 182.4MB. Max. memory is 16.1GB. [2024-11-08 18:34:30,321 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 109.1MB. Free memory is still 78.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:34:30,321 INFO L158 Benchmark]: CACSL2BoogieTranslator took 528.99ms. Allocated memory is still 157.3MB. Free memory was 119.1MB in the beginning and 119.1MB in the end (delta: 24.7kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-08 18:34:30,321 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.38ms. Allocated memory is still 157.3MB. Free memory was 119.1MB in the beginning and 115.6MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 18:34:30,321 INFO L158 Benchmark]: Boogie Preprocessor took 91.29ms. Allocated memory is still 157.3MB. Free memory was 115.6MB in the beginning and 110.7MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 18:34:30,322 INFO L158 Benchmark]: RCFGBuilder took 872.25ms. Allocated memory is still 157.3MB. Free memory was 110.7MB in the beginning and 77.9MB in the end (delta: 32.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-08 18:34:30,322 INFO L158 Benchmark]: TraceAbstraction took 65647.25ms. Allocated memory was 157.3MB in the beginning and 794.8MB in the end (delta: 637.5MB). Free memory was 77.9MB in the beginning and 576.3MB in the end (delta: -498.4MB). Peak memory consumption was 139.8MB. Max. memory is 16.1GB. [2024-11-08 18:34:30,322 INFO L158 Benchmark]: Witness Printer took 4.50ms. Allocated memory is still 794.8MB. Free memory is still 575.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:34:30,324 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 109.1MB. Free memory is still 78.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 528.99ms. Allocated memory is still 157.3MB. Free memory was 119.1MB in the beginning and 119.1MB in the end (delta: 24.7kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.38ms. Allocated memory is still 157.3MB. Free memory was 119.1MB in the beginning and 115.6MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 91.29ms. Allocated memory is still 157.3MB. Free memory was 115.6MB in the beginning and 110.7MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 872.25ms. Allocated memory is still 157.3MB. Free memory was 110.7MB in the beginning and 77.9MB in the end (delta: 32.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 65647.25ms. Allocated memory was 157.3MB in the beginning and 794.8MB in the end (delta: 637.5MB). Free memory was 77.9MB in the beginning and 576.3MB in the end (delta: -498.4MB). Peak memory consumption was 139.8MB. Max. memory is 16.1GB. * Witness Printer took 4.50ms. Allocated memory is still 794.8MB. Free memory is still 575.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 100. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[3] = { 1, 0, 0 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[3] = { 1, 0, 0 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[3] = { 1, 0, 0 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[3] = { 1, 0, 0 }; [L25-L27] float float_Array_0[1] = { 63.5 }; [L25-L27] float float_Array_0[1] = { 63.5 }; [L28-L30] signed char signed_char_Array_0[2][2][2] = { {{32, -4}, {32, -64}}, {{64, 16}, {4, 50}} }; [L28-L30] signed char signed_char_Array_0[2][2][2] = { {{32, -4}, {32, -64}}, {{64, 16}, {4, 50}} }; [L28-L30] signed char signed_char_Array_0[2][2][2] = { {{32, -4}, {32, -64}}, {{64, 16}, {4, 50}} }; [L28-L30] signed char signed_char_Array_0[2][2][2] = { {{32, -4}, {32, -64}}, {{64, 16}, {4, 50}} }; [L28-L30] signed char signed_char_Array_0[2][2][2] = { {{32, -4}, {32, -64}}, {{64, 16}, {4, 50}} }; [L28-L30] signed char signed_char_Array_0[2][2][2] = { {{32, -4}, {32, -64}}, {{64, 16}, {4, 50}} }; [L28-L30] signed char signed_char_Array_0[2][2][2] = { {{32, -4}, {32, -64}}, {{64, 16}, {4, 50}} }; [L28-L30] signed char signed_char_Array_0[2][2][2] = { {{32, -4}, {32, -64}}, {{64, 16}, {4, 50}} }; [L28-L30] signed char signed_char_Array_0[2][2][2] = { {{32, -4}, {32, -64}}, {{64, 16}, {4, 50}} }; [L31-L33] signed long int signed_long_int_Array_0[1] = { 1 }; [L31-L33] signed long int signed_long_int_Array_0[1] = { 1 }; [L34] signed char last_1_signed_char_Array_0_1__0__0_ = 64; [L35] signed char last_1_signed_char_Array_0_0__1__1_ = -64; VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=0, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L104] isInitial = 1 [L105] FCALL initially() [L106] COND TRUE 1 [L107] CALL updateLastVariables() [L96] EXPR signed_char_Array_0[1][0][0] [L96] last_1_signed_char_Array_0_1__0__0_ = signed_char_Array_0[1][0][0] [L97] EXPR signed_char_Array_0[0][1][1] [L97] last_1_signed_char_Array_0_0__1__1_ = signed_char_Array_0[0][1][1] [L107] RET updateLastVariables() [L108] CALL updateVariables() [L67] BOOL_unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L68] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L68] 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_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L68] 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_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L69] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L69] 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_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L69] 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_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L70] BOOL_unsigned_char_Array_0[1] = __VERIFIER_nondet_uchar() [L71] EXPR BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L71] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L71] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L72] EXPR BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L72] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L72] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L73] BOOL_unsigned_char_Array_0[2] = __VERIFIER_nondet_uchar() [L74] EXPR BOOL_unsigned_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L74] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[2] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L74] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[2] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L75] EXPR BOOL_unsigned_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L75] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[2] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L75] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[2] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L76] signed_char_Array_0[0][0][0] = __VERIFIER_nondet_char() [L77] EXPR signed_char_Array_0[0][0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L77] CALL assume_abort_if_not(signed_char_Array_0[0][0][0] >= -1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L77] RET assume_abort_if_not(signed_char_Array_0[0][0][0] >= -1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L78] EXPR signed_char_Array_0[0][0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L78] CALL assume_abort_if_not(signed_char_Array_0[0][0][0] <= 126) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L78] RET assume_abort_if_not(signed_char_Array_0[0][0][0] <= 126) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L79] signed_char_Array_0[0][1][0] = __VERIFIER_nondet_char() [L80] EXPR signed_char_Array_0[0][1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L80] CALL assume_abort_if_not(signed_char_Array_0[0][1][0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L80] RET assume_abort_if_not(signed_char_Array_0[0][1][0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L81] EXPR signed_char_Array_0[0][1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L81] CALL assume_abort_if_not(signed_char_Array_0[0][1][0] <= 126) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L81] RET assume_abort_if_not(signed_char_Array_0[0][1][0] <= 126) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L82] signed_char_Array_0[1][1][0] = __VERIFIER_nondet_char() [L83] EXPR signed_char_Array_0[1][1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L83] CALL assume_abort_if_not(signed_char_Array_0[1][1][0] >= -127) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L83] RET assume_abort_if_not(signed_char_Array_0[1][1][0] >= -127) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L84] EXPR signed_char_Array_0[1][1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L84] CALL assume_abort_if_not(signed_char_Array_0[1][1][0] <= 126) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L84] RET assume_abort_if_not(signed_char_Array_0[1][1][0] <= 126) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L85] signed_char_Array_0[0][0][1] = __VERIFIER_nondet_char() [L86] EXPR signed_char_Array_0[0][0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L86] CALL assume_abort_if_not(signed_char_Array_0[0][0][1] >= -127) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L86] RET assume_abort_if_not(signed_char_Array_0[0][0][1] >= -127) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L87] EXPR signed_char_Array_0[0][0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L87] CALL assume_abort_if_not(signed_char_Array_0[0][0][1] <= 126) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L87] RET assume_abort_if_not(signed_char_Array_0[0][0][1] <= 126) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L88] signed_char_Array_0[1][0][1] = __VERIFIER_nondet_char() [L89] EXPR signed_char_Array_0[1][0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L89] CALL assume_abort_if_not(signed_char_Array_0[1][0][1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L89] RET assume_abort_if_not(signed_char_Array_0[1][0][1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L90] EXPR signed_char_Array_0[1][0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L90] CALL assume_abort_if_not(signed_char_Array_0[1][0][1] <= 63) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L90] RET assume_abort_if_not(signed_char_Array_0[1][0][1] <= 63) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L91] signed_char_Array_0[1][1][1] = __VERIFIER_nondet_char() [L92] EXPR signed_char_Array_0[1][1][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L92] CALL assume_abort_if_not(signed_char_Array_0[1][1][1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L92] RET assume_abort_if_not(signed_char_Array_0[1][1][1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L93] EXPR signed_char_Array_0[1][1][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L93] CALL assume_abort_if_not(signed_char_Array_0[1][1][1] <= 64) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L93] RET assume_abort_if_not(signed_char_Array_0[1][1][1] <= 64) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L108] RET updateVariables() [L109] CALL step() [L39] EXPR BOOL_unsigned_char_Array_0[0] [L39] unsigned char stepLocal_0 = BOOL_unsigned_char_Array_0[0]; [L40] COND TRUE ! (last_1_signed_char_Array_0_0__1__1_ >= last_1_signed_char_Array_0_1__0__0_) [L41] EXPR BOOL_unsigned_char_Array_0[2] [L41] EXPR BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, stepLocal_0=-511] [L41] EXPR BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L41] COND TRUE (BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[1]) && stepLocal_0 [L42] signed_long_int_Array_0[0] = ((((last_1_signed_char_Array_0_1__0__0_) < (last_1_signed_char_Array_0_0__1__1_)) ? (last_1_signed_char_Array_0_1__0__0_) : (last_1_signed_char_Array_0_0__1__1_))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L49] EXPR signed_char_Array_0[1][1][1] [L49] EXPR signed_char_Array_0[1][0][1] [L49] EXPR signed_char_Array_0[0][1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L49] EXPR ((64) > (signed_char_Array_0[0][1][0])) ? (64) : (signed_char_Array_0[0][1][0]) [L49] EXPR ((64) > (signed_char_Array_0[0][1][0])) ? (64) : (signed_char_Array_0[0][1][0]) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L49] signed long int stepLocal_3 = (signed_char_Array_0[1][1][1] + signed_char_Array_0[1][0][1]) - ((((64) > (signed_char_Array_0[0][1][0])) ? (64) : (signed_char_Array_0[0][1][0]))); [L50] EXPR signed_char_Array_0[0][0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L50] COND TRUE signed_char_Array_0[0][0][0] < stepLocal_3 [L51] EXPR signed_char_Array_0[1][0][1] [L51] EXPR signed_char_Array_0[0][1][0] [L51] signed_char_Array_0[0][1][1] = ((64 - signed_char_Array_0[1][0][1]) - signed_char_Array_0[0][1][0]) [L55] float_Array_0[0] = 128.91f [L56] EXPR signed_char_Array_0[0][1][1] [L56] EXPR signed_long_int_Array_0[0] [L56] unsigned char stepLocal_2 = signed_char_Array_0[0][1][1] == signed_long_int_Array_0[0]; [L57] EXPR BOOL_unsigned_char_Array_0[1] [L57] unsigned char stepLocal_1 = BOOL_unsigned_char_Array_0[1]; [L58] stepLocal_1 && BOOL_unsigned_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, stepLocal_2=0] [L58] stepLocal_1 && BOOL_unsigned_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L58] COND FALSE !(stepLocal_1 && BOOL_unsigned_char_Array_0[2]) [L63] EXPR signed_char_Array_0[0][0][0] [L63] EXPR signed_char_Array_0[0][1][0] [L63] signed_char_Array_0[1][0][0] = (signed_char_Array_0[0][0][0] - signed_char_Array_0[0][1][0]) [L109] RET step() [L110] CALL, EXPR property() [L100] EXPR (! (last_1_signed_char_Array_0_0__1__1_ >= last_1_signed_char_Array_0_1__0__0_)) ? (((BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[1]) && BOOL_unsigned_char_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((last_1_signed_char_Array_0_1__0__0_) < (last_1_signed_char_Array_0_0__1__1_)) ? (last_1_signed_char_Array_0_1__0__0_) : (last_1_signed_char_Array_0_0__1__1_))))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_)) [L100] EXPR BOOL_unsigned_char_Array_0[2] [L100] EXPR BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L100] EXPR BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L100] EXPR (BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[1]) && BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L100] EXPR (BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[1]) && BOOL_unsigned_char_Array_0[0] [L100] EXPR BOOL_unsigned_char_Array_0[0] [L100] EXPR (BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[1]) && BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L100] EXPR ((BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[1]) && BOOL_unsigned_char_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((last_1_signed_char_Array_0_1__0__0_) < (last_1_signed_char_Array_0_0__1__1_)) ? (last_1_signed_char_Array_0_1__0__0_) : (last_1_signed_char_Array_0_0__1__1_))))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_)) [L100] EXPR signed_long_int_Array_0[0] [L100] EXPR ((BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[1]) && BOOL_unsigned_char_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((last_1_signed_char_Array_0_1__0__0_) < (last_1_signed_char_Array_0_0__1__1_)) ? (last_1_signed_char_Array_0_1__0__0_) : (last_1_signed_char_Array_0_0__1__1_))))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_)) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L100] EXPR (! (last_1_signed_char_Array_0_0__1__1_ >= last_1_signed_char_Array_0_1__0__0_)) ? (((BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[1]) && BOOL_unsigned_char_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((last_1_signed_char_Array_0_1__0__0_) < (last_1_signed_char_Array_0_0__1__1_)) ? (last_1_signed_char_Array_0_1__0__0_) : (last_1_signed_char_Array_0_0__1__1_))))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_)) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L100] EXPR ((! (last_1_signed_char_Array_0_0__1__1_ >= last_1_signed_char_Array_0_1__0__0_)) ? (((BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[1]) && BOOL_unsigned_char_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((last_1_signed_char_Array_0_1__0__0_) < (last_1_signed_char_Array_0_0__1__1_)) ? (last_1_signed_char_Array_0_1__0__0_) : (last_1_signed_char_Array_0_0__1__1_))))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_))) && ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[2]) ? ((BOOL_unsigned_char_Array_0[0] || (signed_char_Array_0[0][1][1] == signed_long_int_Array_0[0])) ? (signed_char_Array_0[1][0][0] == ((signed char) ((((signed_char_Array_0[1][1][0]) < (signed_char_Array_0[0][0][1])) ? (signed_char_Array_0[1][1][0]) : (signed_char_Array_0[0][0][1]))))) : 1) : (signed_char_Array_0[1][0][0] == ((signed char) (signed_char_Array_0[0][0][0] - signed_char_Array_0[0][1][0])))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L100] EXPR ((! (last_1_signed_char_Array_0_0__1__1_ >= last_1_signed_char_Array_0_1__0__0_)) ? (((BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[1]) && BOOL_unsigned_char_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((last_1_signed_char_Array_0_1__0__0_) < (last_1_signed_char_Array_0_0__1__1_)) ? (last_1_signed_char_Array_0_1__0__0_) : (last_1_signed_char_Array_0_0__1__1_))))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_))) && ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[2]) ? ((BOOL_unsigned_char_Array_0[0] || (signed_char_Array_0[0][1][1] == signed_long_int_Array_0[0])) ? (signed_char_Array_0[1][0][0] == ((signed char) ((((signed_char_Array_0[1][1][0]) < (signed_char_Array_0[0][0][1])) ? (signed_char_Array_0[1][1][0]) : (signed_char_Array_0[0][0][1]))))) : 1) : (signed_char_Array_0[1][0][0] == ((signed char) (signed_char_Array_0[0][0][0] - signed_char_Array_0[0][1][0])))) [L100] EXPR BOOL_unsigned_char_Array_0[1] [L100] EXPR BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L100] EXPR BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L100] EXPR (BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[2]) ? ((BOOL_unsigned_char_Array_0[0] || (signed_char_Array_0[0][1][1] == signed_long_int_Array_0[0])) ? (signed_char_Array_0[1][0][0] == ((signed char) ((((signed_char_Array_0[1][1][0]) < (signed_char_Array_0[0][0][1])) ? (signed_char_Array_0[1][1][0]) : (signed_char_Array_0[0][0][1]))))) : 1) : (signed_char_Array_0[1][0][0] == ((signed char) (signed_char_Array_0[0][0][0] - signed_char_Array_0[0][1][0]))) [L100] EXPR signed_char_Array_0[1][0][0] [L100] EXPR signed_char_Array_0[0][0][0] [L100] EXPR signed_char_Array_0[0][1][0] [L100] EXPR (BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[2]) ? ((BOOL_unsigned_char_Array_0[0] || (signed_char_Array_0[0][1][1] == signed_long_int_Array_0[0])) ? (signed_char_Array_0[1][0][0] == ((signed char) ((((signed_char_Array_0[1][1][0]) < (signed_char_Array_0[0][0][1])) ? (signed_char_Array_0[1][1][0]) : (signed_char_Array_0[0][0][1]))))) : 1) : (signed_char_Array_0[1][0][0] == ((signed char) (signed_char_Array_0[0][0][0] - signed_char_Array_0[0][1][0]))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L100] EXPR ((! (last_1_signed_char_Array_0_0__1__1_ >= last_1_signed_char_Array_0_1__0__0_)) ? (((BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[1]) && BOOL_unsigned_char_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((last_1_signed_char_Array_0_1__0__0_) < (last_1_signed_char_Array_0_0__1__1_)) ? (last_1_signed_char_Array_0_1__0__0_) : (last_1_signed_char_Array_0_0__1__1_))))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_))) && ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[2]) ? ((BOOL_unsigned_char_Array_0[0] || (signed_char_Array_0[0][1][1] == signed_long_int_Array_0[0])) ? (signed_char_Array_0[1][0][0] == ((signed char) ((((signed_char_Array_0[1][1][0]) < (signed_char_Array_0[0][0][1])) ? (signed_char_Array_0[1][1][0]) : (signed_char_Array_0[0][0][1]))))) : 1) : (signed_char_Array_0[1][0][0] == ((signed char) (signed_char_Array_0[0][0][0] - signed_char_Array_0[0][1][0])))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L100] EXPR (((! (last_1_signed_char_Array_0_0__1__1_ >= last_1_signed_char_Array_0_1__0__0_)) ? (((BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[1]) && BOOL_unsigned_char_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((last_1_signed_char_Array_0_1__0__0_) < (last_1_signed_char_Array_0_0__1__1_)) ? (last_1_signed_char_Array_0_1__0__0_) : (last_1_signed_char_Array_0_0__1__1_))))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_))) && ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[2]) ? ((BOOL_unsigned_char_Array_0[0] || (signed_char_Array_0[0][1][1] == signed_long_int_Array_0[0])) ? (signed_char_Array_0[1][0][0] == ((signed char) ((((signed_char_Array_0[1][1][0]) < (signed_char_Array_0[0][0][1])) ? (signed_char_Array_0[1][1][0]) : (signed_char_Array_0[0][0][1]))))) : 1) : (signed_char_Array_0[1][0][0] == ((signed char) (signed_char_Array_0[0][0][0] - signed_char_Array_0[0][1][0]))))) && ((signed_char_Array_0[0][0][0] < ((signed_char_Array_0[1][1][1] + signed_char_Array_0[1][0][1]) - ((((64) > (signed_char_Array_0[0][1][0])) ? (64) : (signed_char_Array_0[0][1][0]))))) ? (signed_char_Array_0[0][1][1] == ((signed char) ((64 - signed_char_Array_0[1][0][1]) - signed_char_Array_0[0][1][0]))) : (signed_char_Array_0[0][1][1] == ((signed char) ((((signed_char_Array_0[1][1][0]) < (signed_char_Array_0[0][0][1])) ? (signed_char_Array_0[1][1][0]) : (signed_char_Array_0[0][0][1])))))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L100] EXPR (((! (last_1_signed_char_Array_0_0__1__1_ >= last_1_signed_char_Array_0_1__0__0_)) ? (((BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[1]) && BOOL_unsigned_char_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((last_1_signed_char_Array_0_1__0__0_) < (last_1_signed_char_Array_0_0__1__1_)) ? (last_1_signed_char_Array_0_1__0__0_) : (last_1_signed_char_Array_0_0__1__1_))))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_))) && ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[2]) ? ((BOOL_unsigned_char_Array_0[0] || (signed_char_Array_0[0][1][1] == signed_long_int_Array_0[0])) ? (signed_char_Array_0[1][0][0] == ((signed char) ((((signed_char_Array_0[1][1][0]) < (signed_char_Array_0[0][0][1])) ? (signed_char_Array_0[1][1][0]) : (signed_char_Array_0[0][0][1]))))) : 1) : (signed_char_Array_0[1][0][0] == ((signed char) (signed_char_Array_0[0][0][0] - signed_char_Array_0[0][1][0]))))) && ((signed_char_Array_0[0][0][0] < ((signed_char_Array_0[1][1][1] + signed_char_Array_0[1][0][1]) - ((((64) > (signed_char_Array_0[0][1][0])) ? (64) : (signed_char_Array_0[0][1][0]))))) ? (signed_char_Array_0[0][1][1] == ((signed char) ((64 - signed_char_Array_0[1][0][1]) - signed_char_Array_0[0][1][0]))) : (signed_char_Array_0[0][1][1] == ((signed char) ((((signed_char_Array_0[1][1][0]) < (signed_char_Array_0[0][0][1])) ? (signed_char_Array_0[1][1][0]) : (signed_char_Array_0[0][0][1])))))) [L100] EXPR signed_char_Array_0[0][0][0] [L100] EXPR signed_char_Array_0[1][1][1] [L100] EXPR signed_char_Array_0[1][0][1] [L100] EXPR signed_char_Array_0[0][1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L100] EXPR ((64) > (signed_char_Array_0[0][1][0])) ? (64) : (signed_char_Array_0[0][1][0]) [L100] EXPR ((64) > (signed_char_Array_0[0][1][0])) ? (64) : (signed_char_Array_0[0][1][0]) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L100] EXPR (signed_char_Array_0[0][0][0] < ((signed_char_Array_0[1][1][1] + signed_char_Array_0[1][0][1]) - ((((64) > (signed_char_Array_0[0][1][0])) ? (64) : (signed_char_Array_0[0][1][0]))))) ? (signed_char_Array_0[0][1][1] == ((signed char) ((64 - signed_char_Array_0[1][0][1]) - signed_char_Array_0[0][1][0]))) : (signed_char_Array_0[0][1][1] == ((signed char) ((((signed_char_Array_0[1][1][0]) < (signed_char_Array_0[0][0][1])) ? (signed_char_Array_0[1][1][0]) : (signed_char_Array_0[0][0][1]))))) [L100] EXPR signed_char_Array_0[0][1][1] [L100] EXPR signed_char_Array_0[1][0][1] [L100] EXPR signed_char_Array_0[0][1][0] [L100] EXPR (signed_char_Array_0[0][0][0] < ((signed_char_Array_0[1][1][1] + signed_char_Array_0[1][0][1]) - ((((64) > (signed_char_Array_0[0][1][0])) ? (64) : (signed_char_Array_0[0][1][0]))))) ? (signed_char_Array_0[0][1][1] == ((signed char) ((64 - signed_char_Array_0[1][0][1]) - signed_char_Array_0[0][1][0]))) : (signed_char_Array_0[0][1][1] == ((signed char) ((((signed_char_Array_0[1][1][0]) < (signed_char_Array_0[0][0][1])) ? (signed_char_Array_0[1][1][0]) : (signed_char_Array_0[0][0][1]))))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L100] EXPR (((! (last_1_signed_char_Array_0_0__1__1_ >= last_1_signed_char_Array_0_1__0__0_)) ? (((BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[1]) && BOOL_unsigned_char_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((last_1_signed_char_Array_0_1__0__0_) < (last_1_signed_char_Array_0_0__1__1_)) ? (last_1_signed_char_Array_0_1__0__0_) : (last_1_signed_char_Array_0_0__1__1_))))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_))) && ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[2]) ? ((BOOL_unsigned_char_Array_0[0] || (signed_char_Array_0[0][1][1] == signed_long_int_Array_0[0])) ? (signed_char_Array_0[1][0][0] == ((signed char) ((((signed_char_Array_0[1][1][0]) < (signed_char_Array_0[0][0][1])) ? (signed_char_Array_0[1][1][0]) : (signed_char_Array_0[0][0][1]))))) : 1) : (signed_char_Array_0[1][0][0] == ((signed char) (signed_char_Array_0[0][0][0] - signed_char_Array_0[0][1][0]))))) && ((signed_char_Array_0[0][0][0] < ((signed_char_Array_0[1][1][1] + signed_char_Array_0[1][0][1]) - ((((64) > (signed_char_Array_0[0][1][0])) ? (64) : (signed_char_Array_0[0][1][0]))))) ? (signed_char_Array_0[0][1][1] == ((signed char) ((64 - signed_char_Array_0[1][0][1]) - signed_char_Array_0[0][1][0]))) : (signed_char_Array_0[0][1][1] == ((signed char) ((((signed_char_Array_0[1][1][0]) < (signed_char_Array_0[0][0][1])) ? (signed_char_Array_0[1][1][0]) : (signed_char_Array_0[0][0][1])))))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L100] EXPR ((((! (last_1_signed_char_Array_0_0__1__1_ >= last_1_signed_char_Array_0_1__0__0_)) ? (((BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[1]) && BOOL_unsigned_char_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((last_1_signed_char_Array_0_1__0__0_) < (last_1_signed_char_Array_0_0__1__1_)) ? (last_1_signed_char_Array_0_1__0__0_) : (last_1_signed_char_Array_0_0__1__1_))))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_))) && ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[2]) ? ((BOOL_unsigned_char_Array_0[0] || (signed_char_Array_0[0][1][1] == signed_long_int_Array_0[0])) ? (signed_char_Array_0[1][0][0] == ((signed char) ((((signed_char_Array_0[1][1][0]) < (signed_char_Array_0[0][0][1])) ? (signed_char_Array_0[1][1][0]) : (signed_char_Array_0[0][0][1]))))) : 1) : (signed_char_Array_0[1][0][0] == ((signed char) (signed_char_Array_0[0][0][0] - signed_char_Array_0[0][1][0]))))) && ((signed_char_Array_0[0][0][0] < ((signed_char_Array_0[1][1][1] + signed_char_Array_0[1][0][1]) - ((((64) > (signed_char_Array_0[0][1][0])) ? (64) : (signed_char_Array_0[0][1][0]))))) ? (signed_char_Array_0[0][1][1] == ((signed char) ((64 - signed_char_Array_0[1][0][1]) - signed_char_Array_0[0][1][0]))) : (signed_char_Array_0[0][1][1] == ((signed char) ((((signed_char_Array_0[1][1][0]) < (signed_char_Array_0[0][0][1])) ? (signed_char_Array_0[1][1][0]) : (signed_char_Array_0[0][0][1]))))))) && (float_Array_0[0] == ((float) 128.91f)) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L100] EXPR ((((! (last_1_signed_char_Array_0_0__1__1_ >= last_1_signed_char_Array_0_1__0__0_)) ? (((BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[1]) && BOOL_unsigned_char_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((last_1_signed_char_Array_0_1__0__0_) < (last_1_signed_char_Array_0_0__1__1_)) ? (last_1_signed_char_Array_0_1__0__0_) : (last_1_signed_char_Array_0_0__1__1_))))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_))) && ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[2]) ? ((BOOL_unsigned_char_Array_0[0] || (signed_char_Array_0[0][1][1] == signed_long_int_Array_0[0])) ? (signed_char_Array_0[1][0][0] == ((signed char) ((((signed_char_Array_0[1][1][0]) < (signed_char_Array_0[0][0][1])) ? (signed_char_Array_0[1][1][0]) : (signed_char_Array_0[0][0][1]))))) : 1) : (signed_char_Array_0[1][0][0] == ((signed char) (signed_char_Array_0[0][0][0] - signed_char_Array_0[0][1][0]))))) && ((signed_char_Array_0[0][0][0] < ((signed_char_Array_0[1][1][1] + signed_char_Array_0[1][0][1]) - ((((64) > (signed_char_Array_0[0][1][0])) ? (64) : (signed_char_Array_0[0][1][0]))))) ? (signed_char_Array_0[0][1][1] == ((signed char) ((64 - signed_char_Array_0[1][0][1]) - signed_char_Array_0[0][1][0]))) : (signed_char_Array_0[0][1][1] == ((signed char) ((((signed_char_Array_0[1][1][0]) < (signed_char_Array_0[0][0][1])) ? (signed_char_Array_0[1][1][0]) : (signed_char_Array_0[0][0][1]))))))) && (float_Array_0[0] == ((float) 128.91f)) [L100] EXPR float_Array_0[0] [L100] EXPR ((((! (last_1_signed_char_Array_0_0__1__1_ >= last_1_signed_char_Array_0_1__0__0_)) ? (((BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[1]) && BOOL_unsigned_char_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((last_1_signed_char_Array_0_1__0__0_) < (last_1_signed_char_Array_0_0__1__1_)) ? (last_1_signed_char_Array_0_1__0__0_) : (last_1_signed_char_Array_0_0__1__1_))))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_))) && ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[2]) ? ((BOOL_unsigned_char_Array_0[0] || (signed_char_Array_0[0][1][1] == signed_long_int_Array_0[0])) ? (signed_char_Array_0[1][0][0] == ((signed char) ((((signed_char_Array_0[1][1][0]) < (signed_char_Array_0[0][0][1])) ? (signed_char_Array_0[1][1][0]) : (signed_char_Array_0[0][0][1]))))) : 1) : (signed_char_Array_0[1][0][0] == ((signed char) (signed_char_Array_0[0][0][0] - signed_char_Array_0[0][1][0]))))) && ((signed_char_Array_0[0][0][0] < ((signed_char_Array_0[1][1][1] + signed_char_Array_0[1][0][1]) - ((((64) > (signed_char_Array_0[0][1][0])) ? (64) : (signed_char_Array_0[0][1][0]))))) ? (signed_char_Array_0[0][1][1] == ((signed char) ((64 - signed_char_Array_0[1][0][1]) - signed_char_Array_0[0][1][0]))) : (signed_char_Array_0[0][1][1] == ((signed char) ((((signed_char_Array_0[1][1][0]) < (signed_char_Array_0[0][0][1])) ? (signed_char_Array_0[1][1][0]) : (signed_char_Array_0[0][0][1]))))))) && (float_Array_0[0] == ((float) 128.91f)) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L100-L101] return ((((! (last_1_signed_char_Array_0_0__1__1_ >= last_1_signed_char_Array_0_1__0__0_)) ? (((BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[1]) && BOOL_unsigned_char_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((last_1_signed_char_Array_0_1__0__0_) < (last_1_signed_char_Array_0_0__1__1_)) ? (last_1_signed_char_Array_0_1__0__0_) : (last_1_signed_char_Array_0_0__1__1_))))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_))) && ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[2]) ? ((BOOL_unsigned_char_Array_0[0] || (signed_char_Array_0[0][1][1] == signed_long_int_Array_0[0])) ? (signed_char_Array_0[1][0][0] == ((signed char) ((((signed_char_Array_0[1][1][0]) < (signed_char_Array_0[0][0][1])) ? (signed_char_Array_0[1][1][0]) : (signed_char_Array_0[0][0][1]))))) : 1) : (signed_char_Array_0[1][0][0] == ((signed char) (signed_char_Array_0[0][0][0] - signed_char_Array_0[0][1][0]))))) && ((signed_char_Array_0[0][0][0] < ((signed_char_Array_0[1][1][1] + signed_char_Array_0[1][0][1]) - ((((64) > (signed_char_Array_0[0][1][0])) ? (64) : (signed_char_Array_0[0][1][0]))))) ? (signed_char_Array_0[0][1][1] == ((signed char) ((64 - signed_char_Array_0[1][0][1]) - signed_char_Array_0[0][1][0]))) : (signed_char_Array_0[0][1][1] == ((signed char) ((((signed_char_Array_0[1][1][0]) < (signed_char_Array_0[0][0][1])) ? (signed_char_Array_0[1][1][0]) : (signed_char_Array_0[0][0][1]))))))) && (float_Array_0[0] == ((float) 128.91f)) ; [L110] RET, EXPR property() [L110] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L19] reach_error() VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 97 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 65.4s, OverallIterations: 17, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 21.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1134 SdHoareTripleChecker+Valid, 3.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1131 mSDsluCounter, 8810 SdHoareTripleChecker+Invalid, 2.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6462 mSDsCounter, 113 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1500 IncrementalHoareTripleChecker+Invalid, 1613 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 113 mSolverCounterUnsat, 2348 mSDtfsCounter, 1500 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 726 GetRequests, 646 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 21.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=805occurred in iteration=16, InterpolantAutomatonStates: 92, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.9s AutomataMinimizationTime, 16 MinimizatonAttempts, 555 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 40.2s InterpolantComputationTime, 2421 NumberOfCodeBlocks, 2421 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 2258 ConstructedInterpolants, 0 QuantifiedInterpolants, 49089 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 9792/9792 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 18:34:30,365 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/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_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-57.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/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_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/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 523cdc555ae18a7121d858cb3ce401c3fbc4c545022234654bee429dbd299e9d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:34:32,803 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:34:32,921 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-08 18:34:32,928 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:34:32,931 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:34:32,973 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:34:32,975 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:34:32,976 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:34:32,979 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:34:32,980 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:34:32,980 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:34:32,980 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:34:32,981 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:34:32,981 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:34:32,982 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:34:32,982 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:34:32,985 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:34:32,985 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:34:32,985 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:34:32,986 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:34:32,986 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:34:32,991 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:34:32,991 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:34:32,992 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 18:34:32,992 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 18:34:32,992 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:34:32,993 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 18:34:32,993 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:34:32,993 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:34:32,993 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:34:32,995 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:34:32,995 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:34:32,995 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:34:32,996 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:34:32,996 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:34:32,997 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:34:32,997 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:34:32,997 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:34:32,998 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 18:34:32,998 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 18:34:32,999 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:34:32,999 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:34:32,999 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:34:33,000 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:34:33,000 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_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 523cdc555ae18a7121d858cb3ce401c3fbc4c545022234654bee429dbd299e9d [2024-11-08 18:34:33,422 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:34:33,451 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:34:33,455 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:34:33,456 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:34:33,457 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:34:33,459 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-57.i Unable to find full path for "g++" [2024-11-08 18:34:35,473 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:34:35,809 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:34:35,810 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-57.i [2024-11-08 18:34:35,819 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/data/071f01001/e39f94074b334a75a99711e00e81a67a/FLAGe43eeb6fb [2024-11-08 18:34:35,840 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/data/071f01001/e39f94074b334a75a99711e00e81a67a [2024-11-08 18:34:35,842 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:34:35,847 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:34:35,852 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:34:35,852 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:34:35,860 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:34:35,860 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:34:35" (1/1) ... [2024-11-08 18:34:35,862 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@749fd74f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:35, skipping insertion in model container [2024-11-08 18:34:35,862 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:34:35" (1/1) ... [2024-11-08 18:34:35,901 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:34:36,139 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_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-57.i[916,929] [2024-11-08 18:34:36,265 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:34:36,287 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:34:36,315 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_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-57.i[916,929] [2024-11-08 18:34:36,426 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:34:36,466 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:34:36,467 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:36 WrapperNode [2024-11-08 18:34:36,468 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:34:36,469 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:34:36,469 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:34:36,469 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:34:36,477 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:36" (1/1) ... [2024-11-08 18:34:36,492 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:36" (1/1) ... [2024-11-08 18:34:36,531 INFO L138 Inliner]: procedures = 33, calls = 143, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 411 [2024-11-08 18:34:36,532 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:34:36,533 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:34:36,533 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:34:36,533 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:34:36,546 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:36" (1/1) ... [2024-11-08 18:34:36,547 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:36" (1/1) ... [2024-11-08 18:34:36,556 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:36" (1/1) ... [2024-11-08 18:34:36,604 INFO L175 MemorySlicer]: Split 110 memory accesses to 5 slices as follows [2, 24, 3, 72, 9]. 65 percent of accesses are in the largest equivalence class. The 15 initializations are split as follows [2, 3, 1, 8, 1]. The 17 writes are split as follows [0, 3, 1, 10, 3]. [2024-11-08 18:34:36,604 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:36" (1/1) ... [2024-11-08 18:34:36,604 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:36" (1/1) ... [2024-11-08 18:34:36,643 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:36" (1/1) ... [2024-11-08 18:34:36,650 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:36" (1/1) ... [2024-11-08 18:34:36,662 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:36" (1/1) ... [2024-11-08 18:34:36,665 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:36" (1/1) ... [2024-11-08 18:34:36,675 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:34:36,680 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:34:36,684 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:34:36,684 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:34:36,685 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:36" (1/1) ... [2024-11-08 18:34:36,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:34:36,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:34:36,734 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:34:36,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:34:36,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:34:36,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-08 18:34:36,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-08 18:34:36,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-08 18:34:36,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-11-08 18:34:36,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2024-11-08 18:34:36,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 18:34:36,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-08 18:34:36,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-08 18:34:36,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-08 18:34:36,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-08 18:34:36,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-08 18:34:36,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-08 18:34:36,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-11-08 18:34:36,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-11-08 18:34:36,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2024-11-08 18:34:36,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-08 18:34:36,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-08 18:34:36,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-08 18:34:36,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-08 18:34:36,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-11-08 18:34:36,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-08 18:34:36,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-08 18:34:36,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-08 18:34:36,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-08 18:34:36,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-08 18:34:36,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-08 18:34:36,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-08 18:34:36,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-08 18:34:36,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-08 18:34:36,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-11-08 18:34:36,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2024-11-08 18:34:36,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2024-11-08 18:34:36,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2024-11-08 18:34:36,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2024-11-08 18:34:36,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2024-11-08 18:34:36,785 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 18:34:36,785 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 18:34:36,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:34:36,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:34:36,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-08 18:34:36,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-08 18:34:36,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-11-08 18:34:36,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2024-11-08 18:34:36,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2024-11-08 18:34:36,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-08 18:34:36,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-08 18:34:36,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-08 18:34:36,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-08 18:34:36,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-08 18:34:37,004 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:34:37,007 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:34:37,740 INFO L? ?]: Removed 94 outVars from TransFormulas that were not future-live. [2024-11-08 18:34:37,740 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:34:37,762 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:34:37,763 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 18:34:37,763 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:34:37 BoogieIcfgContainer [2024-11-08 18:34:37,764 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:34:37,767 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:34:37,768 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:34:37,772 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:34:37,772 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:34:35" (1/3) ... [2024-11-08 18:34:37,773 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53565cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:34:37, skipping insertion in model container [2024-11-08 18:34:37,774 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:36" (2/3) ... [2024-11-08 18:34:37,774 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53565cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:34:37, skipping insertion in model container [2024-11-08 18:34:37,774 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:34:37" (3/3) ... [2024-11-08 18:34:37,776 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-57.i [2024-11-08 18:34:37,796 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:34:37,796 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 18:34:37,888 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:34:37,897 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;@49d713d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:34:37,898 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 18:34:37,903 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 76 states have (on average 1.394736842105263) internal successors, (106), 77 states have internal predecessors, (106), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-08 18:34:37,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-08 18:34:37,920 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:34:37,921 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:34:37,922 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:34:37,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:37,928 INFO L85 PathProgramCache]: Analyzing trace with hash -851259868, now seen corresponding path program 1 times [2024-11-08 18:34:37,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:34:37,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [861722383] [2024-11-08 18:34:37,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:37,942 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:34:37,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:34:37,959 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:37,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:38,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:38,308 INFO L255 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 18:34:38,317 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:34:38,361 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 322 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-08 18:34:38,361 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:34:38,362 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:34:38,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [861722383] [2024-11-08 18:34:38,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [861722383] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:34:38,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:34:38,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:34:38,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700189270] [2024-11-08 18:34:38,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:34:38,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 18:34:38,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:34:38,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 18:34:38,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 18:34:38,406 INFO L87 Difference]: Start difference. First operand has 97 states, 76 states have (on average 1.394736842105263) internal successors, (106), 77 states have internal predecessors, (106), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 18:34:38,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:34:38,441 INFO L93 Difference]: Finished difference Result 187 states and 296 transitions. [2024-11-08 18:34:38,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 18:34:38,445 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 134 [2024-11-08 18:34:38,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:34:38,453 INFO L225 Difference]: With dead ends: 187 [2024-11-08 18:34:38,454 INFO L226 Difference]: Without dead ends: 93 [2024-11-08 18:34:38,457 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 18:34:38,463 INFO L432 NwaCegarLoop]: 135 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, 135 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 18:34:38,466 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:34:38,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-08 18:34:38,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-11-08 18:34:38,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 73 states have (on average 1.356164383561644) internal successors, (99), 73 states have internal predecessors, (99), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-08 18:34:38,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 135 transitions. [2024-11-08 18:34:38,536 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 135 transitions. Word has length 134 [2024-11-08 18:34:38,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:34:38,537 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 135 transitions. [2024-11-08 18:34:38,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 18:34:38,541 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 135 transitions. [2024-11-08 18:34:38,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-08 18:34:38,551 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:34:38,551 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:34:38,556 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:38,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:34:38,752 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:34:38,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:38,753 INFO L85 PathProgramCache]: Analyzing trace with hash 646378696, now seen corresponding path program 1 times [2024-11-08 18:34:38,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:34:38,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1095088221] [2024-11-08 18:34:38,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:38,755 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 18:34:38,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:34:38,757 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:38,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:39,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:39,064 INFO L255 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 18:34:39,071 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:34:39,292 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:34:39,293 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 18:34:40,202 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 18:34:40,202 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:34:40,203 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:34:40,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1095088221] [2024-11-08 18:34:40,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1095088221] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:34:40,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:34:40,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:34:40,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136908054] [2024-11-08 18:34:40,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:34:40,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:34:40,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:34:40,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:34:40,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:34:40,211 INFO L87 Difference]: Start difference. First operand 93 states and 135 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:34:40,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:34:40,718 INFO L93 Difference]: Finished difference Result 274 states and 400 transitions. [2024-11-08 18:34:40,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:34:40,719 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 134 [2024-11-08 18:34:40,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:34:40,722 INFO L225 Difference]: With dead ends: 274 [2024-11-08 18:34:40,723 INFO L226 Difference]: Without dead ends: 184 [2024-11-08 18:34:40,724 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:34:40,725 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 94 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:34:40,726 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 322 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:34:40,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-11-08 18:34:40,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 153. [2024-11-08 18:34:40,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 114 states have (on average 1.3070175438596492) internal successors, (149), 114 states have internal predecessors, (149), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-08 18:34:40,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 221 transitions. [2024-11-08 18:34:40,761 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 221 transitions. Word has length 134 [2024-11-08 18:34:40,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:34:40,761 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 221 transitions. [2024-11-08 18:34:40,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:34:40,762 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 221 transitions. [2024-11-08 18:34:40,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-08 18:34:40,765 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:34:40,765 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:34:40,770 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-08 18:34:40,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:34:40,966 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:34:40,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:40,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1688788159, now seen corresponding path program 1 times [2024-11-08 18:34:40,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:34:40,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [113668125] [2024-11-08 18:34:40,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:40,968 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 18:34:40,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:34:40,972 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:40,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:41,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:41,315 INFO L255 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 18:34:41,326 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:34:41,903 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 267 proven. 36 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2024-11-08 18:34:41,904 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:34:42,114 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 18:34:42,115 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:34:42,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [113668125] [2024-11-08 18:34:42,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [113668125] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:34:42,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:34:42,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2024-11-08 18:34:42,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269142695] [2024-11-08 18:34:42,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:34:42,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:34:42,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:34:42,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:34:42,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:34:42,123 INFO L87 Difference]: Start difference. First operand 153 states and 221 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:34:42,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:34:42,318 INFO L93 Difference]: Finished difference Result 321 states and 467 transitions. [2024-11-08 18:34:42,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:34:42,319 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 141 [2024-11-08 18:34:42,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:34:42,321 INFO L225 Difference]: With dead ends: 321 [2024-11-08 18:34:42,322 INFO L226 Difference]: Without dead ends: 229 [2024-11-08 18:34:42,323 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:34:42,324 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 146 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:34:42,325 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 382 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:34:42,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2024-11-08 18:34:42,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 226. [2024-11-08 18:34:42,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 182 states have (on average 1.3681318681318682) internal successors, (249), 183 states have internal predecessors, (249), 40 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-08 18:34:42,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 329 transitions. [2024-11-08 18:34:42,360 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 329 transitions. Word has length 141 [2024-11-08 18:34:42,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:34:42,361 INFO L471 AbstractCegarLoop]: Abstraction has 226 states and 329 transitions. [2024-11-08 18:34:42,361 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:34:42,361 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 329 transitions. [2024-11-08 18:34:42,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-08 18:34:42,364 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:34:42,365 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:34:42,371 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:42,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:34:42,569 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:34:42,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:42,570 INFO L85 PathProgramCache]: Analyzing trace with hash 917235395, now seen corresponding path program 1 times [2024-11-08 18:34:42,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:34:42,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [143172932] [2024-11-08 18:34:42,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:42,571 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 18:34:42,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:34:42,578 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:42,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:42,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:42,829 INFO L255 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 18:34:42,838 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:34:42,899 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:34:42,900 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 18:34:43,604 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 45 treesize of output 32 [2024-11-08 18:34:43,610 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-08 18:34:43,617 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 9 treesize of output 8 [2024-11-08 18:34:43,804 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 66 treesize of output 54 [2024-11-08 18:34:43,849 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 18:34:43,849 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:34:43,849 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:34:43,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [143172932] [2024-11-08 18:34:43,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [143172932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:34:43,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:34:43,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:34:43,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641316935] [2024-11-08 18:34:43,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:34:43,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:34:43,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:34:43,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:34:43,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:34:43,854 INFO L87 Difference]: Start difference. First operand 226 states and 329 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:34:44,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:34:44,678 INFO L93 Difference]: Finished difference Result 433 states and 634 transitions. [2024-11-08 18:34:44,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:34:44,680 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 141 [2024-11-08 18:34:44,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:34:44,684 INFO L225 Difference]: With dead ends: 433 [2024-11-08 18:34:44,685 INFO L226 Difference]: Without dead ends: 286 [2024-11-08 18:34:44,686 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:34:44,687 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 85 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:34:44,687 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 689 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 18:34:44,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2024-11-08 18:34:44,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 240. [2024-11-08 18:34:44,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 196 states have (on average 1.3724489795918366) internal successors, (269), 197 states have internal predecessors, (269), 40 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-08 18:34:44,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 349 transitions. [2024-11-08 18:34:44,720 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 349 transitions. Word has length 141 [2024-11-08 18:34:44,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:34:44,721 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 349 transitions. [2024-11-08 18:34:44,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:34:44,722 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 349 transitions. [2024-11-08 18:34:44,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-08 18:34:44,725 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:34:44,725 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:34:44,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-11-08 18:34:44,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:34:44,926 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:34:44,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:44,926 INFO L85 PathProgramCache]: Analyzing trace with hash 324091175, now seen corresponding path program 1 times [2024-11-08 18:34:44,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:34:44,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [114239907] [2024-11-08 18:34:44,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:44,927 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 18:34:44,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:34:44,931 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:44,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:45,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:45,252 INFO L255 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-08 18:34:45,260 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:34:45,283 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 18:34:45,375 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 29 treesize of output 13 [2024-11-08 18:34:45,581 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:34:45,582 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 18:34:45,712 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:34:45,712 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 18:34:45,968 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:34:45,969 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 18:34:46,154 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:34:46,155 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 18:34:46,844 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:34:46,844 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 18:34:47,117 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:34:47,117 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 116 treesize of output 108 [2024-11-08 18:34:47,886 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:34:47,886 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 182 treesize of output 88 [2024-11-08 18:34:48,025 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 448 proven. 57 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2024-11-08 18:34:48,025 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:34:48,335 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 18:34:48,335 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:34:48,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [114239907] [2024-11-08 18:34:48,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [114239907] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:34:48,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:34:48,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [19] total 21 [2024-11-08 18:34:48,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188450730] [2024-11-08 18:34:48,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:34:48,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:34:48,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:34:48,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:34:48,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=349, Unknown=0, NotChecked=0, Total=420 [2024-11-08 18:34:48,341 INFO L87 Difference]: Start difference. First operand 240 states and 349 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:34:48,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:34:48,812 INFO L93 Difference]: Finished difference Result 504 states and 729 transitions. [2024-11-08 18:34:48,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:34:48,813 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 144 [2024-11-08 18:34:48,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:34:48,816 INFO L225 Difference]: With dead ends: 504 [2024-11-08 18:34:48,817 INFO L226 Difference]: Without dead ends: 357 [2024-11-08 18:34:48,818 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=83, Invalid=469, Unknown=0, NotChecked=0, Total=552 [2024-11-08 18:34:48,819 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 62 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:34:48,819 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 684 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:34:48,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2024-11-08 18:34:48,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 354. [2024-11-08 18:34:48,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 298 states have (on average 1.3724832214765101) internal successors, (409), 301 states have internal predecessors, (409), 50 states have call successors, (50), 5 states have call predecessors, (50), 5 states have return successors, (50), 47 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-08 18:34:48,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 509 transitions. [2024-11-08 18:34:48,856 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 509 transitions. Word has length 144 [2024-11-08 18:34:48,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:34:48,857 INFO L471 AbstractCegarLoop]: Abstraction has 354 states and 509 transitions. [2024-11-08 18:34:48,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:34:48,858 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 509 transitions. [2024-11-08 18:34:48,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-08 18:34:48,860 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:34:48,861 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:34:48,867 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:49,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:34:49,061 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:34:49,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:49,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1658282707, now seen corresponding path program 1 times [2024-11-08 18:34:49,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:34:49,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [911854819] [2024-11-08 18:34:49,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:49,063 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 18:34:49,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:34:49,066 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:49,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:49,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:49,297 INFO L255 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:34:49,302 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:34:49,362 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2024-11-08 18:34:49,409 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 18:34:49,410 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:34:49,410 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:34:49,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [911854819] [2024-11-08 18:34:49,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [911854819] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:34:49,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:34:49,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:34:49,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318724382] [2024-11-08 18:34:49,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:34:49,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:34:49,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:34:49,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:34:49,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:34:49,413 INFO L87 Difference]: Start difference. First operand 354 states and 509 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:34:49,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:34:49,782 INFO L93 Difference]: Finished difference Result 851 states and 1231 transitions. [2024-11-08 18:34:49,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:34:49,783 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-11-08 18:34:49,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:34:49,787 INFO L225 Difference]: With dead ends: 851 [2024-11-08 18:34:49,788 INFO L226 Difference]: Without dead ends: 590 [2024-11-08 18:34:49,789 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 141 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 18:34:49,790 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 83 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:34:49,790 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 543 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:34:49,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2024-11-08 18:34:49,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 396. [2024-11-08 18:34:49,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 340 states have (on average 1.3852941176470588) internal successors, (471), 343 states have internal predecessors, (471), 50 states have call successors, (50), 5 states have call predecessors, (50), 5 states have return successors, (50), 47 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-08 18:34:49,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 571 transitions. [2024-11-08 18:34:49,852 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 571 transitions. Word has length 145 [2024-11-08 18:34:49,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:34:49,853 INFO L471 AbstractCegarLoop]: Abstraction has 396 states and 571 transitions. [2024-11-08 18:34:49,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:34:49,853 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 571 transitions. [2024-11-08 18:34:49,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-08 18:34:49,860 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:34:49,860 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:34:49,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:50,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:34:50,061 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:34:50,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:50,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1250481195, now seen corresponding path program 1 times [2024-11-08 18:34:50,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:34:50,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [720119974] [2024-11-08 18:34:50,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:50,062 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 18:34:50,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:34:50,066 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:50,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:50,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:50,288 INFO L255 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 18:34:50,291 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:34:50,381 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 18:34:50,381 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:34:50,381 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:34:50,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [720119974] [2024-11-08 18:34:50,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [720119974] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:34:50,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:34:50,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:34:50,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303484159] [2024-11-08 18:34:50,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:34:50,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:34:50,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:34:50,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:34:50,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:34:50,384 INFO L87 Difference]: Start difference. First operand 396 states and 571 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:34:50,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:34:50,638 INFO L93 Difference]: Finished difference Result 785 states and 1133 transitions. [2024-11-08 18:34:50,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:34:50,638 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-11-08 18:34:50,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:34:50,641 INFO L225 Difference]: With dead ends: 785 [2024-11-08 18:34:50,641 INFO L226 Difference]: Without dead ends: 509 [2024-11-08 18:34:50,644 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:34:50,645 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 75 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 832 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:34:50,646 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 832 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:34:50,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2024-11-08 18:34:50,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 428. [2024-11-08 18:34:50,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 372 states have (on average 1.3844086021505377) internal successors, (515), 375 states have internal predecessors, (515), 50 states have call successors, (50), 5 states have call predecessors, (50), 5 states have return successors, (50), 47 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-08 18:34:50,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 615 transitions. [2024-11-08 18:34:50,680 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 615 transitions. Word has length 145 [2024-11-08 18:34:50,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:34:50,681 INFO L471 AbstractCegarLoop]: Abstraction has 428 states and 615 transitions. [2024-11-08 18:34:50,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:34:50,681 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 615 transitions. [2024-11-08 18:34:50,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-08 18:34:50,683 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:34:50,684 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:34:50,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-08 18:34:50,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:34:50,884 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:34:50,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:50,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1764622423, now seen corresponding path program 1 times [2024-11-08 18:34:50,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:34:50,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [742179724] [2024-11-08 18:34:50,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:50,886 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 18:34:50,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:34:50,887 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:50,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:51,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:51,095 INFO L255 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 18:34:51,099 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:34:51,208 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 18:34:51,209 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:34:51,209 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:34:51,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [742179724] [2024-11-08 18:34:51,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [742179724] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:34:51,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:34:51,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:34:51,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138113190] [2024-11-08 18:34:51,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:34:51,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:34:51,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:34:51,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:34:51,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:34:51,211 INFO L87 Difference]: Start difference. First operand 428 states and 615 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:34:51,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:34:51,425 INFO L93 Difference]: Finished difference Result 776 states and 1110 transitions. [2024-11-08 18:34:51,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:34:51,426 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-11-08 18:34:51,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:34:51,429 INFO L225 Difference]: With dead ends: 776 [2024-11-08 18:34:51,429 INFO L226 Difference]: Without dead ends: 496 [2024-11-08 18:34:51,430 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:34:51,431 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 53 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:34:51,431 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 579 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:34:51,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2024-11-08 18:34:51,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 493. [2024-11-08 18:34:51,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 432 states have (on average 1.3773148148148149) internal successors, (595), 436 states have internal predecessors, (595), 52 states have call successors, (52), 8 states have call predecessors, (52), 8 states have return successors, (52), 48 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-08 18:34:51,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 699 transitions. [2024-11-08 18:34:51,468 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 699 transitions. Word has length 145 [2024-11-08 18:34:51,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:34:51,468 INFO L471 AbstractCegarLoop]: Abstraction has 493 states and 699 transitions. [2024-11-08 18:34:51,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:34:51,469 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 699 transitions. [2024-11-08 18:34:51,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-08 18:34:51,471 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:34:51,471 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:34:51,478 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:51,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:34:51,672 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:34:51,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:51,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1063557845, now seen corresponding path program 1 times [2024-11-08 18:34:51,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:34:51,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1362178997] [2024-11-08 18:34:51,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:51,673 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 18:34:51,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:34:51,677 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:51,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:51,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:51,910 INFO L255 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 18:34:51,916 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:34:52,455 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 267 proven. 36 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2024-11-08 18:34:52,455 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:34:52,664 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 18:34:52,665 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:34:52,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1362178997] [2024-11-08 18:34:52,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1362178997] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:34:52,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:34:52,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2024-11-08 18:34:52,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050523850] [2024-11-08 18:34:52,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:34:52,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:34:52,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:34:52,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:34:52,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:34:52,669 INFO L87 Difference]: Start difference. First operand 493 states and 699 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:34:52,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:34:52,878 INFO L93 Difference]: Finished difference Result 831 states and 1177 transitions. [2024-11-08 18:34:52,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:34:52,879 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-11-08 18:34:52,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:34:52,882 INFO L225 Difference]: With dead ends: 831 [2024-11-08 18:34:52,882 INFO L226 Difference]: Without dead ends: 498 [2024-11-08 18:34:52,883 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:34:52,884 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 120 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:34:52,884 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 401 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:34:52,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2024-11-08 18:34:52,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 494. [2024-11-08 18:34:52,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 433 states have (on average 1.374133949191686) internal successors, (595), 437 states have internal predecessors, (595), 52 states have call successors, (52), 8 states have call predecessors, (52), 8 states have return successors, (52), 48 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-08 18:34:52,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 699 transitions. [2024-11-08 18:34:52,916 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 699 transitions. Word has length 145 [2024-11-08 18:34:52,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:34:52,917 INFO L471 AbstractCegarLoop]: Abstraction has 494 states and 699 transitions. [2024-11-08 18:34:52,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:34:52,917 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 699 transitions. [2024-11-08 18:34:52,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-08 18:34:52,919 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:34:52,920 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:34:52,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:53,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:34:53,124 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:34:53,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:53,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1928913519, now seen corresponding path program 1 times [2024-11-08 18:34:53,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:34:53,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1062178085] [2024-11-08 18:34:53,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:53,125 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 18:34:53,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:34:53,129 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:53,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:53,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:53,352 INFO L255 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 18:34:53,357 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:34:53,742 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 267 proven. 36 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2024-11-08 18:34:53,742 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:34:53,889 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 18:34:53,890 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:34:53,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1062178085] [2024-11-08 18:34:53,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1062178085] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:34:53,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:34:53,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2024-11-08 18:34:53,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893638505] [2024-11-08 18:34:53,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:34:53,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:34:53,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:34:53,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:34:53,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:34:53,892 INFO L87 Difference]: Start difference. First operand 494 states and 699 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:34:54,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:34:54,085 INFO L93 Difference]: Finished difference Result 955 states and 1346 transitions. [2024-11-08 18:34:54,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:34:54,086 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-11-08 18:34:54,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:34:54,090 INFO L225 Difference]: With dead ends: 955 [2024-11-08 18:34:54,092 INFO L226 Difference]: Without dead ends: 586 [2024-11-08 18:34:54,094 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:34:54,095 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 73 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:34:54,095 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 567 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:34:54,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2024-11-08 18:34:54,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 527. [2024-11-08 18:34:54,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 462 states have (on average 1.352813852813853) internal successors, (625), 467 states have internal predecessors, (625), 54 states have call successors, (54), 10 states have call predecessors, (54), 10 states have return successors, (54), 49 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-08 18:34:54,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 733 transitions. [2024-11-08 18:34:54,130 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 733 transitions. Word has length 145 [2024-11-08 18:34:54,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:34:54,131 INFO L471 AbstractCegarLoop]: Abstraction has 527 states and 733 transitions. [2024-11-08 18:34:54,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:34:54,131 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 733 transitions. [2024-11-08 18:34:54,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-08 18:34:54,133 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:34:54,133 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:34:54,141 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:54,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:34:54,334 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:34:54,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:54,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1353018697, now seen corresponding path program 1 times [2024-11-08 18:34:54,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:34:54,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1534569245] [2024-11-08 18:34:54,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:54,336 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 18:34:54,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:34:54,337 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:54,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:54,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:54,591 INFO L255 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 18:34:54,596 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:34:54,689 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 18:34:54,689 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:34:54,689 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:34:54,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1534569245] [2024-11-08 18:34:54,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1534569245] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:34:54,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:34:54,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:34:54,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193087170] [2024-11-08 18:34:54,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:34:54,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:34:54,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:34:54,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:34:54,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:34:54,692 INFO L87 Difference]: Start difference. First operand 527 states and 733 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:34:54,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:34:54,893 INFO L93 Difference]: Finished difference Result 917 states and 1269 transitions. [2024-11-08 18:34:54,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:34:54,894 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 147 [2024-11-08 18:34:54,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:34:54,897 INFO L225 Difference]: With dead ends: 917 [2024-11-08 18:34:54,897 INFO L226 Difference]: Without dead ends: 530 [2024-11-08 18:34:54,898 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:34:54,899 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 40 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:34:54,899 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 469 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:34:54,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2024-11-08 18:34:54,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 453. [2024-11-08 18:34:54,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 391 states have (on average 1.3375959079283888) internal successors, (523), 394 states have internal predecessors, (523), 50 states have call successors, (50), 11 states have call predecessors, (50), 11 states have return successors, (50), 47 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-08 18:34:54,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 623 transitions. [2024-11-08 18:34:54,930 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 623 transitions. Word has length 147 [2024-11-08 18:34:54,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:34:54,930 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 623 transitions. [2024-11-08 18:34:54,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:34:54,931 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 623 transitions. [2024-11-08 18:34:54,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-08 18:34:54,933 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:34:54,933 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:34:54,940 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:55,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:34:55,134 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:34:55,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:55,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1605665907, now seen corresponding path program 1 times [2024-11-08 18:34:55,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:34:55,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1113249478] [2024-11-08 18:34:55,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:55,135 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 18:34:55,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:34:55,137 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:55,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:34:55,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:55,442 INFO L255 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-08 18:34:55,448 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:34:55,462 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 18:34:55,621 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 18:34:55,838 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:34:55,839 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 18:34:56,026 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 27 [2024-11-08 18:34:56,666 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:34:56,666 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 57 treesize of output 56 [2024-11-08 18:34:57,510 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:34:57,511 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 100 treesize of output 84 [2024-11-08 18:34:57,769 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:34:57,769 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 128 treesize of output 112 [2024-11-08 18:34:58,776 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:34:58,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 202 treesize of output 96 [2024-11-08 18:34:58,911 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 435 proven. 33 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-08 18:34:58,912 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:34:59,234 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 18:34:59,234 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:34:59,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1113249478] [2024-11-08 18:34:59,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1113249478] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:34:59,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:34:59,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [24] total 26 [2024-11-08 18:34:59,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549873564] [2024-11-08 18:34:59,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:34:59,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:34:59,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:34:59,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:34:59,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=526, Unknown=0, NotChecked=0, Total=650 [2024-11-08 18:34:59,237 INFO L87 Difference]: Start difference. First operand 453 states and 623 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:34:59,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:34:59,779 INFO L93 Difference]: Finished difference Result 1113 states and 1528 transitions. [2024-11-08 18:34:59,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:34:59,780 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 147 [2024-11-08 18:34:59,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:34:59,784 INFO L225 Difference]: With dead ends: 1113 [2024-11-08 18:34:59,784 INFO L226 Difference]: Without dead ends: 793 [2024-11-08 18:34:59,786 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=136, Invalid=676, Unknown=0, NotChecked=0, Total=812 [2024-11-08 18:34:59,786 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 68 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:34:59,787 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 643 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:34:59,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2024-11-08 18:34:59,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 790. [2024-11-08 18:34:59,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 698 states have (on average 1.33810888252149) internal successors, (934), 705 states have internal predecessors, (934), 72 states have call successors, (72), 19 states have call predecessors, (72), 19 states have return successors, (72), 65 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-08 18:34:59,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1078 transitions. [2024-11-08 18:34:59,838 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1078 transitions. Word has length 147 [2024-11-08 18:34:59,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:34:59,839 INFO L471 AbstractCegarLoop]: Abstraction has 790 states and 1078 transitions. [2024-11-08 18:34:59,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:34:59,839 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1078 transitions. [2024-11-08 18:34:59,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-08 18:34:59,841 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:34:59,841 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:34:59,848 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-11-08 18:35:00,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:35:00,042 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:35:00,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:35:00,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1603818865, now seen corresponding path program 1 times [2024-11-08 18:35:00,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:35:00,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [181289944] [2024-11-08 18:35:00,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:35:00,043 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 18:35:00,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:35:00,044 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:35:00,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:35:00,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:35:00,278 INFO L255 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 18:35:00,283 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:35:00,501 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 18:35:00,650 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 77 treesize of output 41 [2024-11-08 18:35:00,677 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 18:35:00,677 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:35:00,678 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:35:00,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [181289944] [2024-11-08 18:35:00,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [181289944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:35:00,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:35:00,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:35:00,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47250868] [2024-11-08 18:35:00,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:35:00,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:35:00,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:35:00,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:35:00,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:35:00,680 INFO L87 Difference]: Start difference. First operand 790 states and 1078 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:35:00,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:35:00,930 INFO L93 Difference]: Finished difference Result 816 states and 1111 transitions. [2024-11-08 18:35:00,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:35:00,931 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 147 [2024-11-08 18:35:00,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:35:00,936 INFO L225 Difference]: With dead ends: 816 [2024-11-08 18:35:00,936 INFO L226 Difference]: Without dead ends: 814 [2024-11-08 18:35:00,937 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:35:00,942 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 121 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:35:00,942 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 850 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:35:00,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2024-11-08 18:35:00,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 814. [2024-11-08 18:35:00,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 814 states, 722 states have (on average 1.3268698060941828) internal successors, (958), 729 states have internal predecessors, (958), 72 states have call successors, (72), 19 states have call predecessors, (72), 19 states have return successors, (72), 65 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-08 18:35:01,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 814 states to 814 states and 1102 transitions. [2024-11-08 18:35:01,004 INFO L78 Accepts]: Start accepts. Automaton has 814 states and 1102 transitions. Word has length 147 [2024-11-08 18:35:01,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:35:01,004 INFO L471 AbstractCegarLoop]: Abstraction has 814 states and 1102 transitions. [2024-11-08 18:35:01,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:35:01,005 INFO L276 IsEmpty]: Start isEmpty. Operand 814 states and 1102 transitions. [2024-11-08 18:35:01,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-08 18:35:01,006 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:35:01,006 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:35:01,016 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2024-11-08 18:35:01,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:35:01,207 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:35:01,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:35:01,208 INFO L85 PathProgramCache]: Analyzing trace with hash -207690443, now seen corresponding path program 1 times [2024-11-08 18:35:01,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:35:01,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2063061466] [2024-11-08 18:35:01,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:35:01,208 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 18:35:01,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:35:01,209 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:35:01,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:35:01,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:35:01,415 INFO L255 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 18:35:01,419 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:35:01,757 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 267 proven. 36 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2024-11-08 18:35:01,757 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:35:01,882 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 18:35:01,882 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:35:01,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2063061466] [2024-11-08 18:35:01,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2063061466] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:35:01,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:35:01,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2024-11-08 18:35:01,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860619451] [2024-11-08 18:35:01,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:35:01,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:35:01,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:35:01,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:35:01,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:35:01,884 INFO L87 Difference]: Start difference. First operand 814 states and 1102 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:35:02,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:35:02,073 INFO L93 Difference]: Finished difference Result 1593 states and 2143 transitions. [2024-11-08 18:35:02,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:35:02,074 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 147 [2024-11-08 18:35:02,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:35:02,079 INFO L225 Difference]: With dead ends: 1593 [2024-11-08 18:35:02,080 INFO L226 Difference]: Without dead ends: 941 [2024-11-08 18:35:02,081 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:35:02,085 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 129 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:35:02,086 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 429 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:35:02,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2024-11-08 18:35:02,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 830. [2024-11-08 18:35:02,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 830 states, 738 states have (on average 1.3170731707317074) internal successors, (972), 745 states have internal predecessors, (972), 72 states have call successors, (72), 19 states have call predecessors, (72), 19 states have return successors, (72), 65 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-08 18:35:02,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1116 transitions. [2024-11-08 18:35:02,148 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1116 transitions. Word has length 147 [2024-11-08 18:35:02,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:35:02,148 INFO L471 AbstractCegarLoop]: Abstraction has 830 states and 1116 transitions. [2024-11-08 18:35:02,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:35:02,149 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1116 transitions. [2024-11-08 18:35:02,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-08 18:35:02,151 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:35:02,151 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:35:02,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:35:02,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:35:02,352 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:35:02,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:35:02,353 INFO L85 PathProgramCache]: Analyzing trace with hash 215011383, now seen corresponding path program 1 times [2024-11-08 18:35:02,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:35:02,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1849700937] [2024-11-08 18:35:02,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:35:02,354 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 18:35:02,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:35:02,357 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:35:02,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:35:02,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:35:02,592 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 18:35:02,597 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:35:03,037 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 267 proven. 36 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2024-11-08 18:35:03,037 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:35:03,177 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 18:35:03,177 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:35:03,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1849700937] [2024-11-08 18:35:03,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1849700937] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:35:03,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:35:03,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2024-11-08 18:35:03,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812455918] [2024-11-08 18:35:03,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:35:03,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:35:03,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:35:03,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:35:03,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:35:03,179 INFO L87 Difference]: Start difference. First operand 830 states and 1116 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:35:03,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:35:03,386 INFO L93 Difference]: Finished difference Result 1561 states and 2089 transitions. [2024-11-08 18:35:03,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:35:03,387 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 147 [2024-11-08 18:35:03,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:35:03,392 INFO L225 Difference]: With dead ends: 1561 [2024-11-08 18:35:03,392 INFO L226 Difference]: Without dead ends: 929 [2024-11-08 18:35:03,396 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:35:03,397 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 95 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:35:03,397 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 435 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:35:03,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 929 states. [2024-11-08 18:35:03,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 929 to 816. [2024-11-08 18:35:03,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 816 states, 724 states have (on average 1.3121546961325967) internal successors, (950), 731 states have internal predecessors, (950), 72 states have call successors, (72), 19 states have call predecessors, (72), 19 states have return successors, (72), 65 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-08 18:35:03,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 1094 transitions. [2024-11-08 18:35:03,469 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 1094 transitions. Word has length 147 [2024-11-08 18:35:03,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:35:03,470 INFO L471 AbstractCegarLoop]: Abstraction has 816 states and 1094 transitions. [2024-11-08 18:35:03,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:35:03,471 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 1094 transitions. [2024-11-08 18:35:03,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-08 18:35:03,473 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:35:03,473 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:35:03,480 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:35:03,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:35:03,674 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:35:03,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:35:03,675 INFO L85 PathProgramCache]: Analyzing trace with hash -788713911, now seen corresponding path program 1 times [2024-11-08 18:35:03,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:35:03,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [525914031] [2024-11-08 18:35:03,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:35:03,676 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 18:35:03,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:35:03,679 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:35:03,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:35:03,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:35:03,915 INFO L255 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 18:35:03,918 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:35:04,004 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 18:35:04,004 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:35:04,005 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:35:04,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [525914031] [2024-11-08 18:35:04,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [525914031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:35:04,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:35:04,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:35:04,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967032132] [2024-11-08 18:35:04,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:35:04,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:35:04,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:35:04,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:35:04,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:35:04,006 INFO L87 Difference]: Start difference. First operand 816 states and 1094 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:35:04,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:35:04,253 INFO L93 Difference]: Finished difference Result 1572 states and 2098 transitions. [2024-11-08 18:35:04,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:35:04,254 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 148 [2024-11-08 18:35:04,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:35:04,259 INFO L225 Difference]: With dead ends: 1572 [2024-11-08 18:35:04,259 INFO L226 Difference]: Without dead ends: 954 [2024-11-08 18:35:04,261 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:35:04,262 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 68 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:35:04,262 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 823 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:35:04,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2024-11-08 18:35:04,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 838. [2024-11-08 18:35:04,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 746 states have (on average 1.3056300268096515) internal successors, (974), 753 states have internal predecessors, (974), 72 states have call successors, (72), 19 states have call predecessors, (72), 19 states have return successors, (72), 65 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-08 18:35:04,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1118 transitions. [2024-11-08 18:35:04,336 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1118 transitions. Word has length 148 [2024-11-08 18:35:04,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:35:04,338 INFO L471 AbstractCegarLoop]: Abstraction has 838 states and 1118 transitions. [2024-11-08 18:35:04,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:35:04,338 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1118 transitions. [2024-11-08 18:35:04,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-08 18:35:04,340 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:35:04,340 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:35:04,346 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:35:04,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:35:04,541 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:35:04,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:35:04,542 INFO L85 PathProgramCache]: Analyzing trace with hash -530548473, now seen corresponding path program 1 times [2024-11-08 18:35:04,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:35:04,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1863410288] [2024-11-08 18:35:04,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:35:04,543 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 18:35:04,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:35:04,546 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:35:04,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:35:04,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:35:04,813 INFO L255 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 18:35:04,816 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:35:04,847 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 18:35:04,848 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:35:04,848 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:35:04,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1863410288] [2024-11-08 18:35:04,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1863410288] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:35:04,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:35:04,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:35:04,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369096489] [2024-11-08 18:35:04,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:35:04,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:35:04,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:35:04,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:35:04,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:35:04,851 INFO L87 Difference]: Start difference. First operand 838 states and 1118 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:35:04,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:35:04,946 INFO L93 Difference]: Finished difference Result 1494 states and 1997 transitions. [2024-11-08 18:35:04,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:35:04,947 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 148 [2024-11-08 18:35:04,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:35:04,951 INFO L225 Difference]: With dead ends: 1494 [2024-11-08 18:35:04,951 INFO L226 Difference]: Without dead ends: 862 [2024-11-08 18:35:04,953 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:35:04,953 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 0 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:35:04,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 644 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:35:04,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 862 states. [2024-11-08 18:35:05,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 862 to 856. [2024-11-08 18:35:05,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 856 states, 764 states have (on average 1.2984293193717278) internal successors, (992), 771 states have internal predecessors, (992), 72 states have call successors, (72), 19 states have call predecessors, (72), 19 states have return successors, (72), 65 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-08 18:35:05,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 856 states and 1136 transitions. [2024-11-08 18:35:05,035 INFO L78 Accepts]: Start accepts. Automaton has 856 states and 1136 transitions. Word has length 148 [2024-11-08 18:35:05,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:35:05,035 INFO L471 AbstractCegarLoop]: Abstraction has 856 states and 1136 transitions. [2024-11-08 18:35:05,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:35:05,036 INFO L276 IsEmpty]: Start isEmpty. Operand 856 states and 1136 transitions. [2024-11-08 18:35:05,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-08 18:35:05,037 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:35:05,037 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:35:05,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2024-11-08 18:35:05,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:35:05,242 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:35:05,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:35:05,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1544672109, now seen corresponding path program 1 times [2024-11-08 18:35:05,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:35:05,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1091808234] [2024-11-08 18:35:05,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:35:05,243 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 18:35:05,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:35:05,244 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:35:05,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:35:05,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:35:05,568 INFO L255 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-08 18:35:05,576 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:35:05,583 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 18:35:05,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2024-11-08 18:35:05,772 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:35:05,773 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 18:35:05,931 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:35:05,932 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 39 [2024-11-08 18:35:06,069 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 49 [2024-11-08 18:35:06,912 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 62 [2024-11-08 18:35:09,163 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:35:09,163 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 148 treesize of output 113 [2024-11-08 18:35:09,678 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:35:09,679 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 128 treesize of output 122 [2024-11-08 18:35:10,883 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:35:10,883 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 147 treesize of output 77 [2024-11-08 18:35:15,185 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 497 proven. 21 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-11-08 18:35:15,186 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:35:17,060 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 18:35:17,061 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:35:17,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1091808234] [2024-11-08 18:35:17,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1091808234] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:35:17,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:35:17,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [32] total 38 [2024-11-08 18:35:17,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423902631] [2024-11-08 18:35:17,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:35:17,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:35:17,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:35:17,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:35:17,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=248, Invalid=1158, Unknown=0, NotChecked=0, Total=1406 [2024-11-08 18:35:17,063 INFO L87 Difference]: Start difference. First operand 856 states and 1136 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:35:18,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:35:18,620 INFO L93 Difference]: Finished difference Result 1893 states and 2512 transitions. [2024-11-08 18:35:18,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:35:18,621 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 149 [2024-11-08 18:35:18,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:35:18,627 INFO L225 Difference]: With dead ends: 1893 [2024-11-08 18:35:18,627 INFO L226 Difference]: Without dead ends: 1243 [2024-11-08 18:35:18,629 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=274, Invalid=1366, Unknown=0, NotChecked=0, Total=1640 [2024-11-08 18:35:18,630 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 220 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 18:35:18,630 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 679 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 18:35:18,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1243 states. [2024-11-08 18:35:18,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1243 to 1079. [2024-11-08 18:35:18,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1079 states, 987 states have (on average 1.3161094224924013) internal successors, (1299), 994 states have internal predecessors, (1299), 72 states have call successors, (72), 19 states have call predecessors, (72), 19 states have return successors, (72), 65 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-08 18:35:18,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1443 transitions. [2024-11-08 18:35:18,696 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1443 transitions. Word has length 149 [2024-11-08 18:35:18,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:35:18,696 INFO L471 AbstractCegarLoop]: Abstraction has 1079 states and 1443 transitions. [2024-11-08 18:35:18,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:35:18,697 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1443 transitions. [2024-11-08 18:35:18,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-08 18:35:18,698 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:35:18,698 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:35:18,706 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:35:18,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:35:18,899 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:35:18,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:35:18,899 INFO L85 PathProgramCache]: Analyzing trace with hash -2049230609, now seen corresponding path program 1 times [2024-11-08 18:35:18,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:35:18,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1255571975] [2024-11-08 18:35:18,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:35:18,900 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 18:35:18,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:35:18,904 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:35:18,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2024-11-08 18:35:19,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:35:19,295 INFO L255 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-08 18:35:19,301 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:35:19,309 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 8 treesize of output 1 [2024-11-08 18:35:19,377 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 18:35:19,488 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:35:19,488 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 18:35:19,594 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:35:19,595 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 18:35:19,713 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:35:19,713 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 18:35:19,959 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:35:19,959 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 18:35:20,070 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:35:20,071 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 97 treesize of output 90 [2024-11-08 18:35:20,551 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:35:20,552 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 103 treesize of output 45 [2024-11-08 18:35:20,646 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 353 proven. 27 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2024-11-08 18:35:20,646 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:35:20,859 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 18:35:20,859 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:35:20,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1255571975] [2024-11-08 18:35:20,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1255571975] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:35:20,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:35:20,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-11-08 18:35:20,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663516687] [2024-11-08 18:35:20,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:35:20,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:35:20,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:35:20,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:35:20,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2024-11-08 18:35:20,862 INFO L87 Difference]: Start difference. First operand 1079 states and 1443 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:35:21,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:35:21,204 INFO L93 Difference]: Finished difference Result 2330 states and 3104 transitions. [2024-11-08 18:35:21,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:35:21,205 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 149 [2024-11-08 18:35:21,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:35:21,211 INFO L225 Difference]: With dead ends: 2330 [2024-11-08 18:35:21,211 INFO L226 Difference]: Without dead ends: 1528 [2024-11-08 18:35:21,213 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2024-11-08 18:35:21,213 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 126 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:35:21,214 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 307 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:35:21,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1528 states. [2024-11-08 18:35:21,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1528 to 1397. [2024-11-08 18:35:21,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1397 states, 1287 states have (on average 1.3146853146853146) internal successors, (1692), 1296 states have internal predecessors, (1692), 84 states have call successors, (84), 25 states have call predecessors, (84), 25 states have return successors, (84), 75 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-08 18:35:21,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1397 states to 1397 states and 1860 transitions. [2024-11-08 18:35:21,309 INFO L78 Accepts]: Start accepts. Automaton has 1397 states and 1860 transitions. Word has length 149 [2024-11-08 18:35:21,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:35:21,309 INFO L471 AbstractCegarLoop]: Abstraction has 1397 states and 1860 transitions. [2024-11-08 18:35:21,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:35:21,310 INFO L276 IsEmpty]: Start isEmpty. Operand 1397 states and 1860 transitions. [2024-11-08 18:35:21,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-08 18:35:21,311 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:35:21,312 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:35:21,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-08 18:35:21,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:35:21,512 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:35:21,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:35:21,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1365553033, now seen corresponding path program 1 times [2024-11-08 18:35:21,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:35:21,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1397442984] [2024-11-08 18:35:21,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:35:21,514 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 18:35:21,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:35:21,515 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:35:21,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:35:21,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:35:21,890 INFO L255 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-08 18:35:21,899 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:35:21,911 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 15 treesize of output 1 [2024-11-08 18:35:21,979 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-08 18:35:22,018 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2024-11-08 18:35:22,149 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:35:22,149 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 39 treesize of output 26 [2024-11-08 18:35:22,272 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 36 [2024-11-08 18:35:22,958 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 49 [2024-11-08 18:35:25,274 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:35:25,275 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 132 treesize of output 85 [2024-11-08 18:35:25,423 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:35:25,423 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 145 treesize of output 112 [2024-11-08 18:35:26,548 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:35:26,548 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 169 treesize of output 75 [2024-11-08 18:35:30,736 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 489 proven. 21 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-08 18:35:30,736 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:35:32,575 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 18:35:32,575 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:35:32,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1397442984] [2024-11-08 18:35:32,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1397442984] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:35:32,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:35:32,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [31] total 37 [2024-11-08 18:35:32,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578430817] [2024-11-08 18:35:32,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:35:32,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:35:32,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:35:32,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:35:32,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=1110, Unknown=0, NotChecked=0, Total=1332 [2024-11-08 18:35:32,578 INFO L87 Difference]: Start difference. First operand 1397 states and 1860 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:35:34,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:35:34,138 INFO L93 Difference]: Finished difference Result 2573 states and 3417 transitions. [2024-11-08 18:35:34,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:35:34,140 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 149 [2024-11-08 18:35:34,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:35:34,146 INFO L225 Difference]: With dead ends: 2573 [2024-11-08 18:35:34,146 INFO L226 Difference]: Without dead ends: 1528 [2024-11-08 18:35:34,149 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 260 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 404 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=248, Invalid=1312, Unknown=0, NotChecked=0, Total=1560 [2024-11-08 18:35:34,150 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 168 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:35:34,150 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 750 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 18:35:34,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1528 states. [2024-11-08 18:35:34,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1528 to 1380. [2024-11-08 18:35:34,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1380 states, 1269 states have (on average 1.3120567375886525) internal successors, (1665), 1278 states have internal predecessors, (1665), 84 states have call successors, (84), 26 states have call predecessors, (84), 26 states have return successors, (84), 75 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-08 18:35:34,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1380 states to 1380 states and 1833 transitions. [2024-11-08 18:35:34,244 INFO L78 Accepts]: Start accepts. Automaton has 1380 states and 1833 transitions. Word has length 149 [2024-11-08 18:35:34,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:35:34,244 INFO L471 AbstractCegarLoop]: Abstraction has 1380 states and 1833 transitions. [2024-11-08 18:35:34,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:35:34,245 INFO L276 IsEmpty]: Start isEmpty. Operand 1380 states and 1833 transitions. [2024-11-08 18:35:34,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-08 18:35:34,246 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:35:34,246 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:35:34,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-08 18:35:34,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:35:34,447 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:35:34,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:35:34,448 INFO L85 PathProgramCache]: Analyzing trace with hash -2048695313, now seen corresponding path program 1 times [2024-11-08 18:35:34,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:35:34,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1159282867] [2024-11-08 18:35:34,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:35:34,448 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 18:35:34,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:35:34,451 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:35:34,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:35:34,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:35:34,841 INFO L255 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-08 18:35:34,846 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:35:34,862 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 18:35:34,933 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 18:35:35,074 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:35:35,075 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 18:35:35,278 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:35:35,278 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 18:35:35,505 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:35:35,505 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 18:35:36,119 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:35:36,120 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 89 treesize of output 88 [2024-11-08 18:35:36,347 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:35:36,348 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 112 treesize of output 117 [2024-11-08 18:35:37,118 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:35:37,118 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 118 treesize of output 54 [2024-11-08 18:35:37,177 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 449 proven. 27 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-08 18:35:37,177 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:35:37,419 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 18:35:37,420 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:35:37,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1159282867] [2024-11-08 18:35:37,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1159282867] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:35:37,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:35:37,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [15] total 18 [2024-11-08 18:35:37,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035517227] [2024-11-08 18:35:37,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:35:37,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:35:37,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:35:37,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:35:37,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2024-11-08 18:35:37,422 INFO L87 Difference]: Start difference. First operand 1380 states and 1833 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:35:37,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:35:37,749 INFO L93 Difference]: Finished difference Result 2481 states and 3295 transitions. [2024-11-08 18:35:37,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:35:37,750 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 149 [2024-11-08 18:35:37,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:35:37,756 INFO L225 Difference]: With dead ends: 2481 [2024-11-08 18:35:37,756 INFO L226 Difference]: Without dead ends: 1457 [2024-11-08 18:35:37,757 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2024-11-08 18:35:37,758 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 69 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:35:37,758 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 558 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:35:37,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1457 states. [2024-11-08 18:35:37,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1457 to 1262. [2024-11-08 18:35:37,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1262 states, 1180 states have (on average 1.3203389830508474) internal successors, (1558), 1185 states have internal predecessors, (1558), 62 states have call successors, (62), 19 states have call predecessors, (62), 19 states have return successors, (62), 57 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-08 18:35:37,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 1682 transitions. [2024-11-08 18:35:37,835 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 1682 transitions. Word has length 149 [2024-11-08 18:35:37,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:35:37,835 INFO L471 AbstractCegarLoop]: Abstraction has 1262 states and 1682 transitions. [2024-11-08 18:35:37,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:35:37,836 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 1682 transitions. [2024-11-08 18:35:37,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-08 18:35:37,837 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:35:37,838 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:35:37,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:35:38,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:35:38,038 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:35:38,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:35:38,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1347630735, now seen corresponding path program 1 times [2024-11-08 18:35:38,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:35:38,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1298354167] [2024-11-08 18:35:38,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:35:38,040 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:35:38,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:35:38,043 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:35:38,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:35:38,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:35:38,635 INFO L255 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 54 conjuncts are in the unsatisfiable core [2024-11-08 18:35:38,640 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:35:38,650 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 18:35:38,707 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-08 18:35:38,863 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:35:38,863 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 18:35:39,038 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:35:39,038 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 18:35:39,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 40 [2024-11-08 18:35:39,888 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 59 [2024-11-08 18:35:41,799 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:35:41,799 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 149 treesize of output 114 [2024-11-08 18:35:42,173 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:35:42,174 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 155 treesize of output 125 [2024-11-08 18:35:43,729 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:35:43,730 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 84 [2024-11-08 18:36:41,821 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 484 proven. 33 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-11-08 18:36:41,821 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:36:54,791 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 18:36:54,791 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:36:54,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1298354167] [2024-11-08 18:36:54,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1298354167] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:36:54,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:36:54,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [34] total 40 [2024-11-08 18:36:54,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563423348] [2024-11-08 18:36:54,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:36:54,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:36:54,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:36:54,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:36:54,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=251, Invalid=1309, Unknown=0, NotChecked=0, Total=1560 [2024-11-08 18:36:54,794 INFO L87 Difference]: Start difference. First operand 1262 states and 1682 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:37:03,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:37:03,156 INFO L93 Difference]: Finished difference Result 2283 states and 3039 transitions. [2024-11-08 18:37:03,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:37:03,157 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 149 [2024-11-08 18:37:03,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:37:03,163 INFO L225 Difference]: With dead ends: 2283 [2024-11-08 18:37:03,164 INFO L226 Difference]: Without dead ends: 1377 [2024-11-08 18:37:03,166 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 79.9s TimeCoverageRelationStatistics Valid=279, Invalid=1527, Unknown=0, NotChecked=0, Total=1806 [2024-11-08 18:37:03,167 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 201 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:37:03,167 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 714 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-08 18:37:03,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1377 states. [2024-11-08 18:37:03,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1377 to 1235. [2024-11-08 18:37:03,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1235 states, 1153 states have (on average 1.3200346921075454) internal successors, (1522), 1158 states have internal predecessors, (1522), 62 states have call successors, (62), 19 states have call predecessors, (62), 19 states have return successors, (62), 57 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-08 18:37:03,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1235 states to 1235 states and 1646 transitions. [2024-11-08 18:37:03,257 INFO L78 Accepts]: Start accepts. Automaton has 1235 states and 1646 transitions. Word has length 149 [2024-11-08 18:37:03,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:37:03,258 INFO L471 AbstractCegarLoop]: Abstraction has 1235 states and 1646 transitions. [2024-11-08 18:37:03,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:37:03,258 INFO L276 IsEmpty]: Start isEmpty. Operand 1235 states and 1646 transitions. [2024-11-08 18:37:03,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-08 18:37:03,260 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:37:03,260 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:37:03,267 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:37:03,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:37:03,461 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:37:03,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:37:03,461 INFO L85 PathProgramCache]: Analyzing trace with hash 16105211, now seen corresponding path program 1 times [2024-11-08 18:37:03,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:37:03,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1345447542] [2024-11-08 18:37:03,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:37:03,462 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 18:37:03,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:37:03,464 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:37:03,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:37:03,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:37:03,937 INFO L255 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 54 conjuncts are in the unsatisfiable core [2024-11-08 18:37:03,944 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:37:03,949 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 18:37:04,005 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 24 treesize of output 23 [2024-11-08 18:37:04,332 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:37:04,332 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 41 [2024-11-08 18:37:04,609 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:37:04,610 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 18:37:04,923 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 62 [2024-11-08 18:37:06,263 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 85 [2024-11-08 18:37:10,497 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:37:10,498 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 173 treesize of output 120 [2024-11-08 18:37:10,784 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:37:10,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 186 treesize of output 138 [2024-11-08 18:37:13,175 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:37:13,176 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 221 treesize of output 97 [2024-11-08 18:37:16,660 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 505 proven. 33 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-11-08 18:37:16,661 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:37:19,130 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 18:37:19,130 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:37:19,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1345447542] [2024-11-08 18:37:19,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1345447542] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:37:19,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:37:19,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [38] total 44 [2024-11-08 18:37:19,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188264034] [2024-11-08 18:37:19,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:37:19,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:37:19,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:37:19,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:37:19,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=362, Invalid=1530, Unknown=0, NotChecked=0, Total=1892 [2024-11-08 18:37:19,133 INFO L87 Difference]: Start difference. First operand 1235 states and 1646 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:37:21,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:37:21,756 INFO L93 Difference]: Finished difference Result 2177 states and 2904 transitions. [2024-11-08 18:37:21,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:37:21,758 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 149 [2024-11-08 18:37:21,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:37:21,764 INFO L225 Difference]: With dead ends: 2177 [2024-11-08 18:37:21,764 INFO L226 Difference]: Without dead ends: 1298 [2024-11-08 18:37:21,766 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 559 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=390, Invalid=1772, Unknown=0, NotChecked=0, Total=2162 [2024-11-08 18:37:21,767 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 160 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:37:21,768 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 791 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-08 18:37:21,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1298 states. [2024-11-08 18:37:21,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1298 to 1076. [2024-11-08 18:37:21,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1076 states, 1024 states have (on average 1.33984375) internal successors, (1372), 1025 states have internal predecessors, (1372), 40 states have call successors, (40), 11 states have call predecessors, (40), 11 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-08 18:37:21,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1076 states to 1076 states and 1452 transitions. [2024-11-08 18:37:21,828 INFO L78 Accepts]: Start accepts. Automaton has 1076 states and 1452 transitions. Word has length 149 [2024-11-08 18:37:21,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:37:21,829 INFO L471 AbstractCegarLoop]: Abstraction has 1076 states and 1452 transitions. [2024-11-08 18:37:21,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:37:21,829 INFO L276 IsEmpty]: Start isEmpty. Operand 1076 states and 1452 transitions. [2024-11-08 18:37:21,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-08 18:37:21,831 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:37:21,831 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:37:21,839 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:37:22,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:37:22,032 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:37:22,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:37:22,032 INFO L85 PathProgramCache]: Analyzing trace with hash 563370850, now seen corresponding path program 1 times [2024-11-08 18:37:22,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:37:22,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [667236275] [2024-11-08 18:37:22,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:37:22,033 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 18:37:22,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:37:22,034 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:37:22,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:37:22,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:37:22,325 INFO L255 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 18:37:22,329 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:37:22,503 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 18:37:22,504 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:37:22,504 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:37:22,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [667236275] [2024-11-08 18:37:22,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [667236275] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:37:22,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:37:22,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:37:22,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834781556] [2024-11-08 18:37:22,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:37:22,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:37:22,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:37:22,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:37:22,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:37:22,506 INFO L87 Difference]: Start difference. First operand 1076 states and 1452 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:37:23,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:37:23,260 INFO L93 Difference]: Finished difference Result 2128 states and 2878 transitions. [2024-11-08 18:37:23,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:37:23,261 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 150 [2024-11-08 18:37:23,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:37:23,267 INFO L225 Difference]: With dead ends: 2128 [2024-11-08 18:37:23,267 INFO L226 Difference]: Without dead ends: 1408 [2024-11-08 18:37:23,268 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 146 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 18:37:23,269 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 96 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:37:23,269 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 440 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 18:37:23,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1408 states. [2024-11-08 18:37:23,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1408 to 1220. [2024-11-08 18:37:23,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1220 states, 1168 states have (on average 1.3424657534246576) internal successors, (1568), 1169 states have internal predecessors, (1568), 40 states have call successors, (40), 11 states have call predecessors, (40), 11 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-08 18:37:23,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1220 states to 1220 states and 1648 transitions. [2024-11-08 18:37:23,337 INFO L78 Accepts]: Start accepts. Automaton has 1220 states and 1648 transitions. Word has length 150 [2024-11-08 18:37:23,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:37:23,338 INFO L471 AbstractCegarLoop]: Abstraction has 1220 states and 1648 transitions. [2024-11-08 18:37:23,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:37:23,338 INFO L276 IsEmpty]: Start isEmpty. Operand 1220 states and 1648 transitions. [2024-11-08 18:37:23,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-08 18:37:23,340 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:37:23,340 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:37:23,347 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:37:23,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:37:23,541 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:37:23,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:37:23,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1938444687, now seen corresponding path program 1 times [2024-11-08 18:37:23,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:37:23,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [14388671] [2024-11-08 18:37:23,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:37:23,542 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 18:37:23,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:37:23,543 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:37:23,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:37:23,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:37:23,928 INFO L255 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-08 18:37:23,933 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:37:23,937 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 18:37:23,940 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 18:37:23,943 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 18:37:24,002 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-11-08 18:37:24,318 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:37:24,318 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 53 [2024-11-08 18:37:24,380 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:37:24,381 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 73 treesize of output 87 [2024-11-08 18:37:24,839 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:37:24,839 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 89 treesize of output 37 [2024-11-08 18:37:26,447 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2024-11-08 18:37:26,447 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:37:26,448 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:37:26,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [14388671] [2024-11-08 18:37:26,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [14388671] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:37:26,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:37:26,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:37:26,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729041634] [2024-11-08 18:37:26,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:37:26,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:37:26,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:37:26,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:37:26,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:37:26,450 INFO L87 Difference]: Start difference. First operand 1220 states and 1648 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-08 18:37:48,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:37:48,131 INFO L93 Difference]: Finished difference Result 2740 states and 3694 transitions. [2024-11-08 18:37:48,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:37:48,132 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 151 [2024-11-08 18:37:48,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:37:48,138 INFO L225 Difference]: With dead ends: 2740 [2024-11-08 18:37:48,138 INFO L226 Difference]: Without dead ends: 1912 [2024-11-08 18:37:48,139 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:37:48,140 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 257 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:37:48,140 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 579 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 21.4s Time] [2024-11-08 18:37:48,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1912 states. [2024-11-08 18:37:48,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1912 to 1804. [2024-11-08 18:37:48,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1804 states, 1731 states have (on average 1.3350664355863662) internal successors, (2311), 1734 states have internal predecessors, (2311), 54 states have call successors, (54), 18 states have call predecessors, (54), 18 states have return successors, (54), 51 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-08 18:37:48,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1804 states to 1804 states and 2419 transitions. [2024-11-08 18:37:48,281 INFO L78 Accepts]: Start accepts. Automaton has 1804 states and 2419 transitions. Word has length 151 [2024-11-08 18:37:48,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:37:48,282 INFO L471 AbstractCegarLoop]: Abstraction has 1804 states and 2419 transitions. [2024-11-08 18:37:48,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-08 18:37:48,283 INFO L276 IsEmpty]: Start isEmpty. Operand 1804 states and 2419 transitions. [2024-11-08 18:37:48,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-08 18:37:48,285 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:37:48,285 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:37:48,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2024-11-08 18:37:48,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:37:48,486 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:37:48,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:37:48,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1258386317, now seen corresponding path program 1 times [2024-11-08 18:37:48,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:37:48,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [500364828] [2024-11-08 18:37:48,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:37:48,488 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 18:37:48,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:37:48,491 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:37:48,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:37:48,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:37:48,860 INFO L255 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-08 18:37:48,865 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:37:48,876 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 18:37:48,882 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 18:37:48,941 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 18:37:49,197 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:37:49,197 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 18:37:49,290 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:37:49,291 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 72 treesize of output 86 [2024-11-08 18:37:49,871 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:37:49,871 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 89 treesize of output 37 [2024-11-08 18:37:49,998 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2024-11-08 18:37:49,999 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:37:49,999 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:37:49,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [500364828] [2024-11-08 18:37:49,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [500364828] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:37:49,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:37:49,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 18:37:50,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692605454] [2024-11-08 18:37:50,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:37:50,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 18:37:50,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:37:50,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 18:37:50,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:37:50,003 INFO L87 Difference]: Start difference. First operand 1804 states and 2419 transitions. Second operand has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-08 18:37:53,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:37:53,419 INFO L93 Difference]: Finished difference Result 3178 states and 4279 transitions. [2024-11-08 18:37:53,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 18:37:53,420 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 151 [2024-11-08 18:37:53,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:37:53,427 INFO L225 Difference]: With dead ends: 3178 [2024-11-08 18:37:53,428 INFO L226 Difference]: Without dead ends: 1924 [2024-11-08 18:37:53,430 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2024-11-08 18:37:53,430 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 319 mSDsluCounter, 1044 mSDsCounter, 0 mSdLazyCounter, 838 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 1218 SdHoareTripleChecker+Invalid, 890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:37:53,430 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 1218 Invalid, 890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 838 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-08 18:37:53,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1924 states. [2024-11-08 18:37:53,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1924 to 1862. [2024-11-08 18:37:53,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1862 states, 1786 states have (on average 1.3303471444568868) internal successors, (2376), 1789 states have internal predecessors, (2376), 56 states have call successors, (56), 19 states have call predecessors, (56), 19 states have return successors, (56), 53 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-08 18:37:53,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1862 states to 1862 states and 2488 transitions. [2024-11-08 18:37:53,567 INFO L78 Accepts]: Start accepts. Automaton has 1862 states and 2488 transitions. Word has length 151 [2024-11-08 18:37:53,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:37:53,568 INFO L471 AbstractCegarLoop]: Abstraction has 1862 states and 2488 transitions. [2024-11-08 18:37:53,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-08 18:37:53,568 INFO L276 IsEmpty]: Start isEmpty. Operand 1862 states and 2488 transitions. [2024-11-08 18:37:53,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-08 18:37:53,570 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:37:53,571 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:37:53,578 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:37:53,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:37:53,772 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:37:53,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:37:53,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1961076941, now seen corresponding path program 1 times [2024-11-08 18:37:53,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:37:53,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [617083334] [2024-11-08 18:37:53,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:37:53,773 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 18:37:53,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:37:53,777 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:37:53,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:37:54,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:37:54,145 INFO L255 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-08 18:37:54,151 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:37:54,159 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 18:37:54,163 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 18:37:54,245 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 18:37:54,413 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:37:54,413 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 18:37:54,654 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:37:54,654 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 18:37:54,770 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:37:54,771 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 72 treesize of output 86 [2024-11-08 18:37:55,450 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:37:55,451 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 89 treesize of output 37 [2024-11-08 18:37:55,580 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 320 proven. 0 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2024-11-08 18:37:55,580 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:37:55,580 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:37:55,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [617083334] [2024-11-08 18:37:55,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [617083334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:37:55,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:37:55,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 18:37:55,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097841143] [2024-11-08 18:37:55,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:37:55,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 18:37:55,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:37:55,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 18:37:55,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:37:55,583 INFO L87 Difference]: Start difference. First operand 1862 states and 2488 transitions. Second operand has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-08 18:37:58,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:37:58,442 INFO L93 Difference]: Finished difference Result 3362 states and 4498 transitions. [2024-11-08 18:37:58,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 18:37:58,443 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 151 [2024-11-08 18:37:58,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:37:58,451 INFO L225 Difference]: With dead ends: 3362 [2024-11-08 18:37:58,451 INFO L226 Difference]: Without dead ends: 2050 [2024-11-08 18:37:58,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2024-11-08 18:37:58,453 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 278 mSDsluCounter, 884 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 1049 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:37:58,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 1049 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-08 18:37:58,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2050 states. [2024-11-08 18:37:58,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2050 to 1984. [2024-11-08 18:37:58,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1984 states, 1888 states have (on average 1.3209745762711864) internal successors, (2494), 1893 states have internal predecessors, (2494), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-08 18:37:58,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1984 states to 1984 states and 2634 transitions. [2024-11-08 18:37:58,656 INFO L78 Accepts]: Start accepts. Automaton has 1984 states and 2634 transitions. Word has length 151 [2024-11-08 18:37:58,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:37:58,657 INFO L471 AbstractCegarLoop]: Abstraction has 1984 states and 2634 transitions. [2024-11-08 18:37:58,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-08 18:37:58,657 INFO L276 IsEmpty]: Start isEmpty. Operand 1984 states and 2634 transitions. [2024-11-08 18:37:58,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-08 18:37:58,659 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:37:58,659 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:37:58,667 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:37:58,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:37:58,860 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:37:58,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:37:58,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1281018571, now seen corresponding path program 1 times [2024-11-08 18:37:58,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:37:58,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1147282793] [2024-11-08 18:37:58,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:37:58,862 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:37:58,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:37:58,863 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:37:58,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:37:59,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:37:59,294 INFO L255 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-08 18:37:59,299 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:37:59,306 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 18:37:59,369 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 30 treesize of output 14 [2024-11-08 18:37:59,432 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-11-08 18:37:59,561 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:37:59,561 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 18:37:59,844 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:37:59,844 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 43 [2024-11-08 18:37:59,936 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:37:59,937 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 72 treesize of output 77 [2024-11-08 18:38:00,475 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:38:00,475 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 88 treesize of output 36 [2024-11-08 18:38:00,521 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 384 proven. 0 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2024-11-08 18:38:00,522 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:38:00,522 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:38:00,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1147282793] [2024-11-08 18:38:00,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1147282793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:38:00,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:38:00,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:38:00,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399791344] [2024-11-08 18:38:00,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:38:00,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:38:00,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:38:00,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:38:00,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:38:00,525 INFO L87 Difference]: Start difference. First operand 1984 states and 2634 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-08 18:38:02,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:38:02,558 INFO L93 Difference]: Finished difference Result 3480 states and 4638 transitions. [2024-11-08 18:38:02,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:38:02,559 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 151 [2024-11-08 18:38:02,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:38:02,572 INFO L225 Difference]: With dead ends: 3480 [2024-11-08 18:38:02,572 INFO L226 Difference]: Without dead ends: 2046 [2024-11-08 18:38:02,581 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 143 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:38:02,587 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 263 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:38:02,588 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 567 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-08 18:38:02,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2046 states. [2024-11-08 18:38:02,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2046 to 1984. [2024-11-08 18:38:02,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1984 states, 1888 states have (on average 1.31885593220339) internal successors, (2490), 1893 states have internal predecessors, (2490), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-08 18:38:02,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1984 states to 1984 states and 2630 transitions. [2024-11-08 18:38:02,809 INFO L78 Accepts]: Start accepts. Automaton has 1984 states and 2630 transitions. Word has length 151 [2024-11-08 18:38:02,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:38:02,809 INFO L471 AbstractCegarLoop]: Abstraction has 1984 states and 2630 transitions. [2024-11-08 18:38:02,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-08 18:38:02,810 INFO L276 IsEmpty]: Start isEmpty. Operand 1984 states and 2630 transitions. [2024-11-08 18:38:02,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-08 18:38:02,812 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:38:02,812 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:38:02,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2024-11-08 18:38:03,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:38:03,013 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:38:03,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:38:03,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1986731309, now seen corresponding path program 1 times [2024-11-08 18:38:03,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:38:03,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1417633719] [2024-11-08 18:38:03,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:38:03,014 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 18:38:03,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:38:03,016 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:38:03,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:38:03,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:38:03,376 INFO L255 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-08 18:38:03,382 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:38:03,388 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 18:38:03,392 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 18:38:03,467 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 18:38:03,614 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:38:03,614 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 18:38:03,885 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:38:03,886 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 67 treesize of output 69 [2024-11-08 18:38:04,190 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:38:04,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 86 treesize of output 94 [2024-11-08 18:38:04,919 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:38:04,919 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 98 treesize of output 44 [2024-11-08 18:38:05,114 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 336 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-11-08 18:38:05,114 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:38:05,115 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:38:05,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1417633719] [2024-11-08 18:38:05,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1417633719] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:38:05,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:38:05,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-08 18:38:05,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514778947] [2024-11-08 18:38:05,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:38:05,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 18:38:05,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:38:05,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 18:38:05,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-11-08 18:38:05,117 INFO L87 Difference]: Start difference. First operand 1984 states and 2630 transitions. Second operand has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 14 states have internal predecessors, (74), 4 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-08 18:38:08,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:38:08,847 INFO L93 Difference]: Finished difference Result 3711 states and 4922 transitions. [2024-11-08 18:38:08,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-08 18:38:08,848 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 14 states have internal predecessors, (74), 4 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 152 [2024-11-08 18:38:08,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:38:08,857 INFO L225 Difference]: With dead ends: 3711 [2024-11-08 18:38:08,857 INFO L226 Difference]: Without dead ends: 2277 [2024-11-08 18:38:08,860 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=149, Invalid=553, Unknown=0, NotChecked=0, Total=702 [2024-11-08 18:38:08,861 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 308 mSDsluCounter, 1061 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 1231 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:38:08,862 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 1231 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-08 18:38:08,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2277 states. [2024-11-08 18:38:09,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2277 to 2120. [2024-11-08 18:38:09,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2120 states, 2024 states have (on average 1.3231225296442688) internal successors, (2678), 2029 states have internal predecessors, (2678), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-08 18:38:09,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2120 states to 2120 states and 2818 transitions. [2024-11-08 18:38:09,087 INFO L78 Accepts]: Start accepts. Automaton has 2120 states and 2818 transitions. Word has length 152 [2024-11-08 18:38:09,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:38:09,087 INFO L471 AbstractCegarLoop]: Abstraction has 2120 states and 2818 transitions. [2024-11-08 18:38:09,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 14 states have internal predecessors, (74), 4 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-08 18:38:09,087 INFO L276 IsEmpty]: Start isEmpty. Operand 2120 states and 2818 transitions. [2024-11-08 18:38:09,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-08 18:38:09,090 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:38:09,090 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:38:09,097 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2024-11-08 18:38:09,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:38:09,291 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:38:09,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:38:09,292 INFO L85 PathProgramCache]: Analyzing trace with hash -2050070549, now seen corresponding path program 1 times [2024-11-08 18:38:09,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:38:09,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [31930876] [2024-11-08 18:38:09,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:38:09,293 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 18:38:09,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:38:09,294 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:38:09,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:38:09,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:38:09,686 INFO L255 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-08 18:38:09,691 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:38:09,698 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 18:38:09,701 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 18:38:09,706 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 18:38:09,709 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 18:38:09,721 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:38:09,722 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 39 [2024-11-08 18:38:09,876 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:38:09,877 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 67 [2024-11-08 18:38:10,066 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:38:10,067 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 30 [2024-11-08 18:38:11,357 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 18:38:11,358 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:38:11,358 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:38:11,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [31930876] [2024-11-08 18:38:11,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [31930876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:38:11,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:38:11,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:38:11,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757547608] [2024-11-08 18:38:11,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:38:11,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:38:11,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:38:11,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:38:11,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:38:11,361 INFO L87 Difference]: Start difference. First operand 2120 states and 2818 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:38:22,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:38:22,708 INFO L93 Difference]: Finished difference Result 3755 states and 5004 transitions. [2024-11-08 18:38:22,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:38:22,710 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 152 [2024-11-08 18:38:22,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:38:22,716 INFO L225 Difference]: With dead ends: 3755 [2024-11-08 18:38:22,717 INFO L226 Difference]: Without dead ends: 2227 [2024-11-08 18:38:22,719 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:38:22,720 INFO L432 NwaCegarLoop]: 203 mSDtfsCounter, 132 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:38:22,721 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 631 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 11.1s Time] [2024-11-08 18:38:22,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2227 states. [2024-11-08 18:38:22,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2227 to 2120. [2024-11-08 18:38:22,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2120 states, 2024 states have (on average 1.3211462450592886) internal successors, (2674), 2029 states have internal predecessors, (2674), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-08 18:38:22,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2120 states to 2120 states and 2814 transitions. [2024-11-08 18:38:22,941 INFO L78 Accepts]: Start accepts. Automaton has 2120 states and 2814 transitions. Word has length 152 [2024-11-08 18:38:22,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:38:22,942 INFO L471 AbstractCegarLoop]: Abstraction has 2120 states and 2814 transitions. [2024-11-08 18:38:22,942 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:38:22,942 INFO L276 IsEmpty]: Start isEmpty. Operand 2120 states and 2814 transitions. [2024-11-08 18:38:22,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-08 18:38:22,944 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:38:22,944 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:38:22,950 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2024-11-08 18:38:23,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:38:23,145 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:38:23,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:38:23,146 INFO L85 PathProgramCache]: Analyzing trace with hash -385007953, now seen corresponding path program 1 times [2024-11-08 18:38:23,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:38:23,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1334752536] [2024-11-08 18:38:23,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:38:23,146 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:38:23,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:38:23,148 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:38:23,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:38:23,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:38:23,543 INFO L255 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-08 18:38:23,549 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:38:23,555 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 18:38:23,560 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 18:38:23,640 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 18:38:23,711 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 25 treesize of output 24 [2024-11-08 18:38:23,924 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:38:23,924 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 57 treesize of output 65 [2024-11-08 18:38:24,225 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:38:24,225 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 92 treesize of output 85 [2024-11-08 18:38:24,613 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:38:24,613 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 93 treesize of output 39 [2024-11-08 18:38:24,682 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 320 proven. 0 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2024-11-08 18:38:24,683 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:38:24,683 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:38:24,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1334752536] [2024-11-08 18:38:24,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1334752536] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:38:24,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:38:24,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:38:24,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276762684] [2024-11-08 18:38:24,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:38:24,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:38:24,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:38:24,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:38:24,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:38:24,685 INFO L87 Difference]: Start difference. First operand 2120 states and 2814 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-08 18:38:26,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:38:26,970 INFO L93 Difference]: Finished difference Result 3765 states and 5012 transitions. [2024-11-08 18:38:26,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:38:26,973 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 152 [2024-11-08 18:38:26,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:38:26,978 INFO L225 Difference]: With dead ends: 3765 [2024-11-08 18:38:26,979 INFO L226 Difference]: Without dead ends: 2237 [2024-11-08 18:38:26,981 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 145 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 18:38:26,981 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 355 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:38:26,981 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 566 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-08 18:38:26,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2237 states. [2024-11-08 18:38:27,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2237 to 2126. [2024-11-08 18:38:27,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2126 states, 2030 states have (on average 1.3211822660098522) internal successors, (2682), 2035 states have internal predecessors, (2682), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-08 18:38:27,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2126 states to 2126 states and 2822 transitions. [2024-11-08 18:38:27,167 INFO L78 Accepts]: Start accepts. Automaton has 2126 states and 2822 transitions. Word has length 152 [2024-11-08 18:38:27,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:38:27,167 INFO L471 AbstractCegarLoop]: Abstraction has 2126 states and 2822 transitions. [2024-11-08 18:38:27,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-08 18:38:27,168 INFO L276 IsEmpty]: Start isEmpty. Operand 2126 states and 2822 transitions. [2024-11-08 18:38:27,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-08 18:38:27,171 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:38:27,171 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:38:27,182 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:38:27,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:38:27,372 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:38:27,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:38:27,372 INFO L85 PathProgramCache]: Analyzing trace with hash -126842515, now seen corresponding path program 1 times [2024-11-08 18:38:27,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:38:27,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1241156596] [2024-11-08 18:38:27,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:38:27,373 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 18:38:27,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:38:27,374 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:38:27,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:38:27,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:38:27,780 INFO L255 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-08 18:38:27,785 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:38:27,802 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 18:38:27,809 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 18:38:27,873 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 18:38:28,070 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:38:28,070 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 57 treesize of output 56 [2024-11-08 18:38:28,269 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:38:28,270 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 82 [2024-11-08 18:38:28,722 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:38:28,722 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 88 treesize of output 40 [2024-11-08 18:38:28,857 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2024-11-08 18:38:28,857 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:38:28,857 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:38:28,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1241156596] [2024-11-08 18:38:28,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1241156596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:38:28,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:38:28,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-08 18:38:28,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105729562] [2024-11-08 18:38:28,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:38:28,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-08 18:38:28,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:38:28,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-08 18:38:28,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:38:28,859 INFO L87 Difference]: Start difference. First operand 2126 states and 2822 transitions. Second operand has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-08 18:38:32,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:38:32,299 INFO L93 Difference]: Finished difference Result 3809 states and 5058 transitions. [2024-11-08 18:38:32,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-08 18:38:32,300 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 152 [2024-11-08 18:38:32,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:38:32,305 INFO L225 Difference]: With dead ends: 3809 [2024-11-08 18:38:32,305 INFO L226 Difference]: Without dead ends: 2275 [2024-11-08 18:38:32,306 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=128, Invalid=522, Unknown=0, NotChecked=0, Total=650 [2024-11-08 18:38:32,307 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 282 mSDsluCounter, 1192 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 1372 SdHoareTripleChecker+Invalid, 879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:38:32,308 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 1372 Invalid, 879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 862 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-08 18:38:32,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2275 states. [2024-11-08 18:38:32,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2275 to 2120. [2024-11-08 18:38:32,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2120 states, 2024 states have (on average 1.3221343873517786) internal successors, (2676), 2029 states have internal predecessors, (2676), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-08 18:38:32,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2120 states to 2120 states and 2816 transitions. [2024-11-08 18:38:32,611 INFO L78 Accepts]: Start accepts. Automaton has 2120 states and 2816 transitions. Word has length 152 [2024-11-08 18:38:32,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:38:32,612 INFO L471 AbstractCegarLoop]: Abstraction has 2120 states and 2816 transitions. [2024-11-08 18:38:32,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-08 18:38:32,613 INFO L276 IsEmpty]: Start isEmpty. Operand 2120 states and 2816 transitions. [2024-11-08 18:38:32,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-08 18:38:32,616 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:38:32,616 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:38:32,624 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Ended with exit code 0 [2024-11-08 18:38:32,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:38:32,818 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:38:32,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:38:32,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1430834263, now seen corresponding path program 1 times [2024-11-08 18:38:32,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:38:32,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1092188871] [2024-11-08 18:38:32,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:38:32,821 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 18:38:32,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:38:32,827 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:38:32,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:38:33,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:38:33,261 INFO L255 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-08 18:38:33,266 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:38:33,273 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 18:38:33,276 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 18:38:33,280 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 18:38:33,283 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 18:38:33,287 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 18:38:33,302 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 18:38:33,411 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:38:33,411 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 18:38:33,521 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 18:38:33,521 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:38:33,521 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:38:33,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1092188871] [2024-11-08 18:38:33,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1092188871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:38:33,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:38:33,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 18:38:33,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731210006] [2024-11-08 18:38:33,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:38:33,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:38:33,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:38:33,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:38:33,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:38:33,523 INFO L87 Difference]: Start difference. First operand 2120 states and 2816 transitions. Second operand has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:38:35,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:38:35,058 INFO L93 Difference]: Finished difference Result 4338 states and 5729 transitions. [2024-11-08 18:38:35,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 18:38:35,059 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 154 [2024-11-08 18:38:35,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:38:35,068 INFO L225 Difference]: With dead ends: 4338 [2024-11-08 18:38:35,068 INFO L226 Difference]: Without dead ends: 2810 [2024-11-08 18:38:35,071 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-08 18:38:35,072 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 70 mSDsluCounter, 1219 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 1404 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:38:35,072 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 1404 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 18:38:35,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2810 states. [2024-11-08 18:38:35,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2810 to 2428. [2024-11-08 18:38:35,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2428 states, 2332 states have (on average 1.3259005145797598) internal successors, (3092), 2337 states have internal predecessors, (3092), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-08 18:38:35,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2428 states to 2428 states and 3232 transitions. [2024-11-08 18:38:35,397 INFO L78 Accepts]: Start accepts. Automaton has 2428 states and 3232 transitions. Word has length 154 [2024-11-08 18:38:35,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:38:35,397 INFO L471 AbstractCegarLoop]: Abstraction has 2428 states and 3232 transitions. [2024-11-08 18:38:35,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:38:35,398 INFO L276 IsEmpty]: Start isEmpty. Operand 2428 states and 3232 transitions. [2024-11-08 18:38:35,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-08 18:38:35,399 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:38:35,400 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:38:35,408 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Ended with exit code 0 [2024-11-08 18:38:35,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:38:35,600 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:38:35,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:38:35,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1172668825, now seen corresponding path program 1 times [2024-11-08 18:38:35,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:38:35,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [870754801] [2024-11-08 18:38:35,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:38:35,602 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 18:38:35,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:38:35,603 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:38:35,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:38:36,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:38:36,011 INFO L255 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-08 18:38:36,015 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:38:36,033 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 18:38:36,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 18:38:36,040 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 18:38:36,043 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 18:38:36,088 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:38:36,088 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 18:38:36,112 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:38:36,113 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 18:38:37,137 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-08 18:38:37,138 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:38:37,138 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:38:37,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [870754801] [2024-11-08 18:38:37,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [870754801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:38:37,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:38:37,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:38:37,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427385229] [2024-11-08 18:38:37,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:38:37,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:38:37,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:38:37,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:38:37,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:38:37,140 INFO L87 Difference]: Start difference. First operand 2428 states and 3232 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:38:49,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:38:49,259 INFO L93 Difference]: Finished difference Result 4088 states and 5473 transitions. [2024-11-08 18:38:49,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:38:49,260 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 154 [2024-11-08 18:38:49,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:38:49,264 INFO L225 Difference]: With dead ends: 4088 [2024-11-08 18:38:49,264 INFO L226 Difference]: Without dead ends: 2294 [2024-11-08 18:38:49,266 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:38:49,267 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 83 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2024-11-08 18:38:49,267 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 513 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 11.9s Time] [2024-11-08 18:38:49,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2294 states. [2024-11-08 18:38:49,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2294 to 2292. [2024-11-08 18:38:49,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2292 states, 2196 states have (on average 1.3178506375227688) internal successors, (2894), 2201 states have internal predecessors, (2894), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-08 18:38:49,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2292 states to 2292 states and 3034 transitions. [2024-11-08 18:38:49,481 INFO L78 Accepts]: Start accepts. Automaton has 2292 states and 3034 transitions. Word has length 154 [2024-11-08 18:38:49,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:38:49,482 INFO L471 AbstractCegarLoop]: Abstraction has 2292 states and 3034 transitions. [2024-11-08 18:38:49,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:38:49,483 INFO L276 IsEmpty]: Start isEmpty. Operand 2292 states and 3034 transitions. [2024-11-08 18:38:49,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-08 18:38:49,486 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:38:49,486 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:38:49,495 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Ended with exit code 0 [2024-11-08 18:38:49,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:38:49,687 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:38:49,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:38:49,687 INFO L85 PathProgramCache]: Analyzing trace with hash 492393771, now seen corresponding path program 1 times [2024-11-08 18:38:49,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:38:49,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1684607425] [2024-11-08 18:38:49,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:38:49,688 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 18:38:49,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:38:49,693 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:38:49,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:38:50,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:38:50,256 INFO L255 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-08 18:38:50,262 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:38:50,267 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 18:38:50,273 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 18:38:50,356 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 18:38:50,544 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:38:50,545 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 18:38:51,132 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:38:51,132 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 57 [2024-11-08 18:38:51,316 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:38:51,317 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 57 [2024-11-08 18:38:51,768 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:38:51,769 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 71 treesize of output 29 [2024-11-08 18:38:51,853 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 336 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-11-08 18:38:51,854 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:38:51,854 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:38:51,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1684607425] [2024-11-08 18:38:51,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1684607425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:38:51,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:38:51,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:38:51,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957839343] [2024-11-08 18:38:51,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:38:51,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:38:51,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:38:51,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:38:51,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:38:51,861 INFO L87 Difference]: Start difference. First operand 2292 states and 3034 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-08 18:38:53,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:38:53,863 INFO L93 Difference]: Finished difference Result 3952 states and 5269 transitions. [2024-11-08 18:38:53,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:38:53,864 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 154 [2024-11-08 18:38:53,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:38:53,870 INFO L225 Difference]: With dead ends: 3952 [2024-11-08 18:38:53,871 INFO L226 Difference]: Without dead ends: 2294 [2024-11-08 18:38:53,873 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 146 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:38:53,873 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 258 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:38:53,874 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 408 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-08 18:38:53,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2294 states. [2024-11-08 18:38:54,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2294 to 2292. [2024-11-08 18:38:54,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2292 states, 2196 states have (on average 1.3151183970856102) internal successors, (2888), 2201 states have internal predecessors, (2888), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-08 18:38:54,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2292 states to 2292 states and 3028 transitions. [2024-11-08 18:38:54,227 INFO L78 Accepts]: Start accepts. Automaton has 2292 states and 3028 transitions. Word has length 154 [2024-11-08 18:38:54,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:38:54,228 INFO L471 AbstractCegarLoop]: Abstraction has 2292 states and 3028 transitions. [2024-11-08 18:38:54,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-08 18:38:54,228 INFO L276 IsEmpty]: Start isEmpty. Operand 2292 states and 3028 transitions. [2024-11-08 18:38:54,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-08 18:38:54,231 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:38:54,231 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:38:54,241 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Ended with exit code 0 [2024-11-08 18:38:54,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:38:54,433 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:38:54,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:38:54,434 INFO L85 PathProgramCache]: Analyzing trace with hash 750559209, now seen corresponding path program 1 times [2024-11-08 18:38:54,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:38:54,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [386559186] [2024-11-08 18:38:54,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:38:54,435 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 18:38:54,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:38:54,440 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:38:54,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:38:55,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:38:55,024 INFO L255 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-08 18:38:55,030 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:38:55,038 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 18:38:55,043 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 18:38:55,048 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 18:38:55,213 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:38:55,213 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 18:38:55,377 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:38:55,378 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 18:38:55,749 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:38:55,749 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 70 treesize of output 28 [2024-11-08 18:38:55,912 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2024-11-08 18:38:55,912 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:38:55,912 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:38:55,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [386559186] [2024-11-08 18:38:55,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [386559186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:38:55,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:38:55,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-08 18:38:55,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411389740] [2024-11-08 18:38:55,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:38:55,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-08 18:38:55,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:38:55,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-08 18:38:55,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:38:55,915 INFO L87 Difference]: Start difference. First operand 2292 states and 3028 transitions. Second operand has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 18:39:01,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:39:01,048 INFO L93 Difference]: Finished difference Result 4152 states and 5479 transitions. [2024-11-08 18:39:01,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-08 18:39:01,049 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 154 [2024-11-08 18:39:01,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:39:01,056 INFO L225 Difference]: With dead ends: 4152 [2024-11-08 18:39:01,057 INFO L226 Difference]: Without dead ends: 2494 [2024-11-08 18:39:01,060 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=111, Invalid=539, Unknown=0, NotChecked=0, Total=650 [2024-11-08 18:39:01,061 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 263 mSDsluCounter, 1648 mSDsCounter, 0 mSdLazyCounter, 1292 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 1877 SdHoareTripleChecker+Invalid, 1310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:39:01,061 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 1877 Invalid, 1310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1292 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-08 18:39:01,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2494 states. [2024-11-08 18:39:01,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2494 to 2294. [2024-11-08 18:39:01,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2294 states, 2198 states have (on average 1.3157415832575068) internal successors, (2892), 2203 states have internal predecessors, (2892), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-08 18:39:01,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2294 states to 2294 states and 3032 transitions. [2024-11-08 18:39:01,450 INFO L78 Accepts]: Start accepts. Automaton has 2294 states and 3032 transitions. Word has length 154 [2024-11-08 18:39:01,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:39:01,451 INFO L471 AbstractCegarLoop]: Abstraction has 2294 states and 3032 transitions. [2024-11-08 18:39:01,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 18:39:01,452 INFO L276 IsEmpty]: Start isEmpty. Operand 2294 states and 3032 transitions. [2024-11-08 18:39:01,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-08 18:39:01,455 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:39:01,455 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:39:01,465 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:39:01,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:39:01,658 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:39:01,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:39:01,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1100282267, now seen corresponding path program 1 times [2024-11-08 18:39:01,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:39:01,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [603483158] [2024-11-08 18:39:01,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:39:01,660 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 18:39:01,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:39:01,664 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:39:01,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:39:02,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:39:02,206 INFO L255 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-08 18:39:02,211 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:39:02,217 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 18:39:02,222 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 18:39:02,226 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 18:39:02,296 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 18:39:02,467 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:39:02,468 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 39 [2024-11-08 18:39:02,541 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:39:02,541 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 39 [2024-11-08 18:39:02,699 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:39:02,699 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 50 treesize of output 20 [2024-11-08 18:39:04,384 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 224 proven. 0 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked. [2024-11-08 18:39:04,384 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:39:04,385 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:39:04,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [603483158] [2024-11-08 18:39:04,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [603483158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:39:04,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:39:04,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:39:04,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39247908] [2024-11-08 18:39:04,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:39:04,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:39:04,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:39:04,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:39:04,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:39:04,388 INFO L87 Difference]: Start difference. First operand 2294 states and 3032 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 18:39:29,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:39:29,772 INFO L93 Difference]: Finished difference Result 4035 states and 5356 transitions. [2024-11-08 18:39:29,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:39:29,774 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 154 [2024-11-08 18:39:29,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:39:29,780 INFO L225 Difference]: With dead ends: 4035 [2024-11-08 18:39:29,780 INFO L226 Difference]: Without dead ends: 2375 [2024-11-08 18:39:29,782 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:39:29,783 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 167 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:39:29,783 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 480 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 25.0s Time] [2024-11-08 18:39:29,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2375 states. [2024-11-08 18:39:30,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2375 to 2294. [2024-11-08 18:39:30,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2294 states, 2198 states have (on average 1.3111919927206552) internal successors, (2882), 2203 states have internal predecessors, (2882), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-08 18:39:30,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2294 states to 2294 states and 3022 transitions. [2024-11-08 18:39:30,152 INFO L78 Accepts]: Start accepts. Automaton has 2294 states and 3022 transitions. Word has length 154 [2024-11-08 18:39:30,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:39:30,153 INFO L471 AbstractCegarLoop]: Abstraction has 2294 states and 3022 transitions. [2024-11-08 18:39:30,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 18:39:30,153 INFO L276 IsEmpty]: Start isEmpty. Operand 2294 states and 3022 transitions. [2024-11-08 18:39:30,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-08 18:39:30,156 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:39:30,156 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:39:30,164 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:39:30,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:39:30,361 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:39:30,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:39:30,362 INFO L85 PathProgramCache]: Analyzing trace with hash 564780329, now seen corresponding path program 1 times [2024-11-08 18:39:30,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:39:30,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [790266049] [2024-11-08 18:39:30,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:39:30,363 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 18:39:30,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:39:30,367 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:39:30,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:39:30,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:39:30,876 INFO L255 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-08 18:39:30,880 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:39:30,885 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 18:39:30,888 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 18:39:30,892 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-08 18:39:30,958 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 18:39:31,127 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:39:31,128 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 39 [2024-11-08 18:39:31,180 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:39:31,181 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 50 treesize of output 20 [2024-11-08 18:39:32,708 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 224 proven. 0 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked. [2024-11-08 18:39:32,708 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:39:32,709 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:39:32,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [790266049] [2024-11-08 18:39:32,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [790266049] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:39:32,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:39:32,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:39:32,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950185944] [2024-11-08 18:39:32,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:39:32,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:39:32,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:39:32,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:39:32,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:39:32,711 INFO L87 Difference]: Start difference. First operand 2294 states and 3022 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 18:39:55,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:39:55,511 INFO L93 Difference]: Finished difference Result 3943 states and 5208 transitions. [2024-11-08 18:39:55,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:39:55,512 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 154 [2024-11-08 18:39:55,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:39:55,518 INFO L225 Difference]: With dead ends: 3943 [2024-11-08 18:39:55,518 INFO L226 Difference]: Without dead ends: 2241 [2024-11-08 18:39:55,521 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:39:55,521 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 181 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:39:55,521 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 495 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 22.4s Time] [2024-11-08 18:39:55,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2241 states. [2024-11-08 18:39:55,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2241 to 2160. [2024-11-08 18:39:55,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2160 states, 2064 states have (on average 1.304263565891473) internal successors, (2692), 2069 states have internal predecessors, (2692), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-08 18:39:55,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2160 states to 2160 states and 2832 transitions. [2024-11-08 18:39:55,898 INFO L78 Accepts]: Start accepts. Automaton has 2160 states and 2832 transitions. Word has length 154 [2024-11-08 18:39:55,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:39:55,899 INFO L471 AbstractCegarLoop]: Abstraction has 2160 states and 2832 transitions. [2024-11-08 18:39:55,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 18:39:55,900 INFO L276 IsEmpty]: Start isEmpty. Operand 2160 states and 2832 transitions. [2024-11-08 18:39:55,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-08 18:39:55,902 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:39:55,903 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:39:55,913 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:39:56,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:39:56,104 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:39:56,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:39:56,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1962861075, now seen corresponding path program 1 times [2024-11-08 18:39:56,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:39:56,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [777478437] [2024-11-08 18:39:56,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:39:56,108 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 18:39:56,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:39:56,112 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:39:56,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:39:56,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:39:56,629 INFO L255 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-08 18:39:56,634 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:39:56,641 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 18:39:56,645 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 18:39:56,651 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 18:39:56,820 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:39:56,820 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 18:39:57,229 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:39:57,229 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 21 [2024-11-08 18:39:57,341 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2024-11-08 18:39:57,341 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:39:57,342 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:39:57,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [777478437] [2024-11-08 18:39:57,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [777478437] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:39:57,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:39:57,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 18:39:57,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684528312] [2024-11-08 18:39:57,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:39:57,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:39:57,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:39:57,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:39:57,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:39:57,344 INFO L87 Difference]: Start difference. First operand 2160 states and 2832 transitions. Second operand has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 18:39:59,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:39:59,446 INFO L93 Difference]: Finished difference Result 3735 states and 4928 transitions. [2024-11-08 18:39:59,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 18:39:59,447 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 155 [2024-11-08 18:39:59,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:39:59,454 INFO L225 Difference]: With dead ends: 3735 [2024-11-08 18:39:59,455 INFO L226 Difference]: Without dead ends: 2167 [2024-11-08 18:39:59,458 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2024-11-08 18:39:59,459 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 173 mSDsluCounter, 828 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 993 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:39:59,459 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 993 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-08 18:39:59,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2167 states. [2024-11-08 18:39:59,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2167 to 2116. [2024-11-08 18:39:59,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2116 states, 2020 states have (on average 1.307920792079208) internal successors, (2642), 2025 states have internal predecessors, (2642), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-08 18:39:59,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2116 states to 2116 states and 2782 transitions. [2024-11-08 18:39:59,910 INFO L78 Accepts]: Start accepts. Automaton has 2116 states and 2782 transitions. Word has length 155 [2024-11-08 18:39:59,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:39:59,911 INFO L471 AbstractCegarLoop]: Abstraction has 2116 states and 2782 transitions. [2024-11-08 18:39:59,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 18:39:59,911 INFO L276 IsEmpty]: Start isEmpty. Operand 2116 states and 2782 transitions. [2024-11-08 18:39:59,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-08 18:39:59,914 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:39:59,914 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:39:59,924 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:40:00,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:40:00,116 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:40:00,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:00,116 INFO L85 PathProgramCache]: Analyzing trace with hash -768181293, now seen corresponding path program 1 times [2024-11-08 18:40:00,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:40:00,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1951303507] [2024-11-08 18:40:00,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:00,118 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 18:40:00,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:40:00,120 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:40:00,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:40:00,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:00,676 INFO L255 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-08 18:40:00,682 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:40:00,690 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 18:40:00,774 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 18:40:00,976 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:40:00,976 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 18:40:01,104 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:40:01,104 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 40 treesize of output 27 [2024-11-08 18:40:01,328 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:40:01,328 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 18:40:01,784 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:40:01,784 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 26 [2024-11-08 18:40:01,911 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 368 proven. 0 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2024-11-08 18:40:01,911 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:40:01,911 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:40:01,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1951303507] [2024-11-08 18:40:01,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1951303507] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:40:01,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:40:01,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-08 18:40:01,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136982882] [2024-11-08 18:40:01,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:40:01,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 18:40:01,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:40:01,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 18:40:01,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:40:01,915 INFO L87 Difference]: Start difference. First operand 2116 states and 2782 transitions. Second operand has 11 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 11 states have internal predecessors, (74), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-08 18:40:04,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:40:04,255 INFO L93 Difference]: Finished difference Result 3725 states and 4918 transitions. [2024-11-08 18:40:04,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 18:40:04,256 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 11 states have internal predecessors, (74), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 155 [2024-11-08 18:40:04,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:40:04,263 INFO L225 Difference]: With dead ends: 3725 [2024-11-08 18:40:04,263 INFO L226 Difference]: Without dead ends: 2201 [2024-11-08 18:40:04,266 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-11-08 18:40:04,266 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 159 mSDsluCounter, 815 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 977 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:40:04,267 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 977 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-08 18:40:04,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2201 states. [2024-11-08 18:40:04,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2201 to 2072. [2024-11-08 18:40:04,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2072 states, 1976 states have (on average 1.311740890688259) internal successors, (2592), 1981 states have internal predecessors, (2592), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-08 18:40:04,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2072 states to 2072 states and 2732 transitions. [2024-11-08 18:40:04,737 INFO L78 Accepts]: Start accepts. Automaton has 2072 states and 2732 transitions. Word has length 155 [2024-11-08 18:40:04,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:40:04,738 INFO L471 AbstractCegarLoop]: Abstraction has 2072 states and 2732 transitions. [2024-11-08 18:40:04,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 11 states have internal predecessors, (74), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-08 18:40:04,738 INFO L276 IsEmpty]: Start isEmpty. Operand 2072 states and 2732 transitions. [2024-11-08 18:40:04,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-11-08 18:40:04,745 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:40:04,745 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:40:04,755 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Ended with exit code 0 [2024-11-08 18:40:04,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:40:04,946 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:40:04,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:04,947 INFO L85 PathProgramCache]: Analyzing trace with hash -576111169, now seen corresponding path program 1 times [2024-11-08 18:40:04,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:40:04,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2069247194] [2024-11-08 18:40:04,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:04,949 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 18:40:04,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:40:04,953 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:40:04,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:40:05,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:05,563 INFO L255 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 18:40:05,569 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:40:05,586 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 18:40:05,659 INFO L134 CoverageAnalysis]: Checked inductivity of 2578 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2560 trivial. 0 not checked. [2024-11-08 18:40:05,659 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:40:05,660 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:40:05,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2069247194] [2024-11-08 18:40:05,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2069247194] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:40:05,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:40:05,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:40:05,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713069772] [2024-11-08 18:40:05,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:40:05,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:40:05,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:40:05,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:40:05,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:40:05,663 INFO L87 Difference]: Start difference. First operand 2072 states and 2732 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:40:06,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:40:06,135 INFO L93 Difference]: Finished difference Result 4115 states and 5450 transitions. [2024-11-08 18:40:06,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:40:06,136 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 278 [2024-11-08 18:40:06,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:40:06,144 INFO L225 Difference]: With dead ends: 4115 [2024-11-08 18:40:06,144 INFO L226 Difference]: Without dead ends: 2635 [2024-11-08 18:40:06,146 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:40:06,147 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 58 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:40:06,147 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 666 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:40:06,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2635 states. [2024-11-08 18:40:06,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2635 to 2184. [2024-11-08 18:40:06,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2184 states, 2088 states have (on average 1.3060344827586208) internal successors, (2727), 2093 states have internal predecessors, (2727), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-08 18:40:06,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2184 states to 2184 states and 2867 transitions. [2024-11-08 18:40:06,533 INFO L78 Accepts]: Start accepts. Automaton has 2184 states and 2867 transitions. Word has length 278 [2024-11-08 18:40:06,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:40:06,534 INFO L471 AbstractCegarLoop]: Abstraction has 2184 states and 2867 transitions. [2024-11-08 18:40:06,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:40:06,535 INFO L276 IsEmpty]: Start isEmpty. Operand 2184 states and 2867 transitions. [2024-11-08 18:40:06,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2024-11-08 18:40:06,542 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:40:06,542 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:40:06,554 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Ended with exit code 0 [2024-11-08 18:40:06,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:40:06,743 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:40:06,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:06,744 INFO L85 PathProgramCache]: Analyzing trace with hash -586626171, now seen corresponding path program 1 times [2024-11-08 18:40:06,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:40:06,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1406853933] [2024-11-08 18:40:06,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:06,745 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 18:40:06,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:40:06,750 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:40:06,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:40:07,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:07,377 INFO L255 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 18:40:07,381 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:40:07,470 INFO L134 CoverageAnalysis]: Checked inductivity of 2580 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 2560 trivial. 0 not checked. [2024-11-08 18:40:07,470 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:40:07,470 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:40:07,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1406853933] [2024-11-08 18:40:07,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1406853933] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:40:07,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:40:07,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:40:07,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790669455] [2024-11-08 18:40:07,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:40:07,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:40:07,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:40:07,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:40:07,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:40:07,474 INFO L87 Difference]: Start difference. First operand 2184 states and 2867 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:40:07,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:40:07,985 INFO L93 Difference]: Finished difference Result 4067 states and 5350 transitions. [2024-11-08 18:40:07,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:40:07,987 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 280 [2024-11-08 18:40:07,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:40:07,994 INFO L225 Difference]: With dead ends: 4067 [2024-11-08 18:40:07,994 INFO L226 Difference]: Without dead ends: 2423 [2024-11-08 18:40:07,997 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 278 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 18:40:07,998 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 61 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:40:07,998 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 248 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:40:08,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2423 states. [2024-11-08 18:40:08,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2423 to 2124. [2024-11-08 18:40:08,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2124 states, 2028 states have (on average 1.2810650887573964) internal successors, (2598), 2033 states have internal predecessors, (2598), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-08 18:40:08,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2124 states to 2124 states and 2738 transitions. [2024-11-08 18:40:08,370 INFO L78 Accepts]: Start accepts. Automaton has 2124 states and 2738 transitions. Word has length 280 [2024-11-08 18:40:08,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:40:08,371 INFO L471 AbstractCegarLoop]: Abstraction has 2124 states and 2738 transitions. [2024-11-08 18:40:08,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:40:08,372 INFO L276 IsEmpty]: Start isEmpty. Operand 2124 states and 2738 transitions. [2024-11-08 18:40:08,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2024-11-08 18:40:08,378 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:40:08,379 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:40:08,390 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:40:08,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:40:08,580 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:40:08,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:08,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1225319997, now seen corresponding path program 1 times [2024-11-08 18:40:08,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:40:08,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2115872815] [2024-11-08 18:40:08,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:08,582 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 18:40:08,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:40:08,585 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:40:08,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:40:09,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:09,219 INFO L255 TraceCheckSpWp]: Trace formula consists of 534 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 18:40:09,224 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:40:09,769 INFO L134 CoverageAnalysis]: Checked inductivity of 2581 backedges. 1234 proven. 36 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2024-11-08 18:40:09,769 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:40:10,048 INFO L134 CoverageAnalysis]: Checked inductivity of 2581 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 2566 trivial. 0 not checked. [2024-11-08 18:40:10,048 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:40:10,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2115872815] [2024-11-08 18:40:10,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2115872815] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:40:10,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:40:10,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2024-11-08 18:40:10,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216362358] [2024-11-08 18:40:10,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:40:10,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:40:10,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:40:10,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:40:10,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:40:10,052 INFO L87 Difference]: Start difference. First operand 2124 states and 2738 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:40:10,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:40:10,662 INFO L93 Difference]: Finished difference Result 3955 states and 5074 transitions. [2024-11-08 18:40:10,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:40:10,663 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 282 [2024-11-08 18:40:10,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:40:10,670 INFO L225 Difference]: With dead ends: 3955 [2024-11-08 18:40:10,670 INFO L226 Difference]: Without dead ends: 2423 [2024-11-08 18:40:10,673 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 563 GetRequests, 553 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:40:10,674 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 110 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:40:10,674 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 449 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:40:10,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2423 states. [2024-11-08 18:40:11,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2423 to 2003. [2024-11-08 18:40:11,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2003 states, 1907 states have (on average 1.26953329837441) internal successors, (2421), 1912 states have internal predecessors, (2421), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-08 18:40:11,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2003 states to 2003 states and 2561 transitions. [2024-11-08 18:40:11,159 INFO L78 Accepts]: Start accepts. Automaton has 2003 states and 2561 transitions. Word has length 282 [2024-11-08 18:40:11,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:40:11,162 INFO L471 AbstractCegarLoop]: Abstraction has 2003 states and 2561 transitions. [2024-11-08 18:40:11,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:40:11,163 INFO L276 IsEmpty]: Start isEmpty. Operand 2003 states and 2561 transitions. [2024-11-08 18:40:11,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2024-11-08 18:40:11,169 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:40:11,170 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:40:11,181 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Ended with exit code 0 [2024-11-08 18:40:11,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:40:11,371 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:40:11,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:11,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1929038834, now seen corresponding path program 1 times [2024-11-08 18:40:11,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:40:11,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1796564714] [2024-11-08 18:40:11,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:11,374 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 18:40:11,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:40:11,378 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:40:11,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:40:12,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:12,108 INFO L255 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 18:40:12,112 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:40:12,153 INFO L134 CoverageAnalysis]: Checked inductivity of 2583 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 2560 trivial. 0 not checked. [2024-11-08 18:40:12,154 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:40:12,154 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:40:12,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1796564714] [2024-11-08 18:40:12,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1796564714] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:40:12,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:40:12,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:40:12,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774222938] [2024-11-08 18:40:12,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:40:12,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:40:12,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:40:12,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:40:12,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:40:12,156 INFO L87 Difference]: Start difference. First operand 2003 states and 2561 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:40:12,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:40:12,550 INFO L93 Difference]: Finished difference Result 3457 states and 4376 transitions. [2024-11-08 18:40:12,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:40:12,552 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 283 [2024-11-08 18:40:12,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:40:12,555 INFO L225 Difference]: With dead ends: 3457 [2024-11-08 18:40:12,555 INFO L226 Difference]: Without dead ends: 2030 [2024-11-08 18:40:12,558 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 281 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 18:40:12,558 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 48 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:40:12,559 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 315 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:40:12,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2030 states. [2024-11-08 18:40:12,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2030 to 1859. [2024-11-08 18:40:12,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1859 states, 1763 states have (on average 1.2359614293817356) internal successors, (2179), 1768 states have internal predecessors, (2179), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-08 18:40:12,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1859 states to 1859 states and 2319 transitions. [2024-11-08 18:40:12,852 INFO L78 Accepts]: Start accepts. Automaton has 1859 states and 2319 transitions. Word has length 283 [2024-11-08 18:40:12,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:40:12,853 INFO L471 AbstractCegarLoop]: Abstraction has 1859 states and 2319 transitions. [2024-11-08 18:40:12,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:40:12,853 INFO L276 IsEmpty]: Start isEmpty. Operand 1859 states and 2319 transitions. [2024-11-08 18:40:12,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2024-11-08 18:40:12,859 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:40:12,859 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:40:12,873 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:40:13,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:40:13,060 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:40:13,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:13,061 INFO L85 PathProgramCache]: Analyzing trace with hash 606792172, now seen corresponding path program 1 times [2024-11-08 18:40:13,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:40:13,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2040270466] [2024-11-08 18:40:13,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:13,063 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 18:40:13,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:40:13,066 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:40:13,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2024-11-08 18:40:13,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:13,866 INFO L255 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 18:40:13,874 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:40:13,893 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 45 treesize of output 32 [2024-11-08 18:40:13,900 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 9 treesize of output 8 [2024-11-08 18:40:13,930 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 9 treesize of output 8 [2024-11-08 18:40:14,387 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 171 treesize of output 139 [2024-11-08 18:40:14,453 INFO L134 CoverageAnalysis]: Checked inductivity of 2585 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 2562 trivial. 0 not checked. [2024-11-08 18:40:14,453 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:40:14,453 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:40:14,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2040270466] [2024-11-08 18:40:14,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2040270466] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:40:14,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:40:14,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:40:14,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491228356] [2024-11-08 18:40:14,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:40:14,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:40:14,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:40:14,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:40:14,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:40:14,456 INFO L87 Difference]: Start difference. First operand 1859 states and 2319 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:40:15,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:40:15,090 INFO L93 Difference]: Finished difference Result 3761 states and 4660 transitions. [2024-11-08 18:40:15,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:40:15,091 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 285 [2024-11-08 18:40:15,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:40:15,096 INFO L225 Difference]: With dead ends: 3761 [2024-11-08 18:40:15,096 INFO L226 Difference]: Without dead ends: 2478 [2024-11-08 18:40:15,099 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:40:15,100 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 55 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:40:15,100 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 638 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:40:15,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2478 states. [2024-11-08 18:40:15,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2478 to 1967. [2024-11-08 18:40:15,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1967 states, 1871 states have (on average 1.2410475681453768) internal successors, (2322), 1876 states have internal predecessors, (2322), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-08 18:40:15,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1967 states to 1967 states and 2462 transitions. [2024-11-08 18:40:15,418 INFO L78 Accepts]: Start accepts. Automaton has 1967 states and 2462 transitions. Word has length 285 [2024-11-08 18:40:15,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:40:15,418 INFO L471 AbstractCegarLoop]: Abstraction has 1967 states and 2462 transitions. [2024-11-08 18:40:15,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:40:15,419 INFO L276 IsEmpty]: Start isEmpty. Operand 1967 states and 2462 transitions. [2024-11-08 18:40:15,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2024-11-08 18:40:15,422 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:40:15,423 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:40:15,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Forceful destruction successful, exit code 0 [2024-11-08 18:40:15,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:40:15,623 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:40:15,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:15,624 INFO L85 PathProgramCache]: Analyzing trace with hash 864957610, now seen corresponding path program 1 times [2024-11-08 18:40:15,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:40:15,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1817132982] [2024-11-08 18:40:15,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:15,626 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 18:40:15,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:40:15,630 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:40:15,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:40:16,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:16,367 INFO L255 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 18:40:16,374 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:40:16,467 INFO L134 CoverageAnalysis]: Checked inductivity of 2585 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 2559 trivial. 0 not checked. [2024-11-08 18:40:16,467 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:40:16,467 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:40:16,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1817132982] [2024-11-08 18:40:16,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1817132982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:40:16,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:40:16,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:40:16,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104214180] [2024-11-08 18:40:16,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:40:16,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:40:16,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:40:16,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:40:16,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:40:16,470 INFO L87 Difference]: Start difference. First operand 1967 states and 2462 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:40:16,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:40:16,983 INFO L93 Difference]: Finished difference Result 3796 states and 4710 transitions. [2024-11-08 18:40:16,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:40:16,984 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 285 [2024-11-08 18:40:16,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:40:16,989 INFO L225 Difference]: With dead ends: 3796 [2024-11-08 18:40:16,989 INFO L226 Difference]: Without dead ends: 2361 [2024-11-08 18:40:16,991 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:40:16,992 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 77 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:40:16,992 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 517 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:40:16,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2361 states. [2024-11-08 18:40:17,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2361 to 2055. [2024-11-08 18:40:17,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2055 states, 1959 states have (on average 1.2276671771311893) internal successors, (2405), 1964 states have internal predecessors, (2405), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-08 18:40:17,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2055 states to 2055 states and 2545 transitions. [2024-11-08 18:40:17,287 INFO L78 Accepts]: Start accepts. Automaton has 2055 states and 2545 transitions. Word has length 285 [2024-11-08 18:40:17,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:40:17,287 INFO L471 AbstractCegarLoop]: Abstraction has 2055 states and 2545 transitions. [2024-11-08 18:40:17,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:40:17,288 INFO L276 IsEmpty]: Start isEmpty. Operand 2055 states and 2545 transitions. [2024-11-08 18:40:17,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2024-11-08 18:40:17,291 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:40:17,292 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:40:17,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:40:17,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:40:17,493 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:40:17,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:17,493 INFO L85 PathProgramCache]: Analyzing trace with hash 278151596, now seen corresponding path program 1 times [2024-11-08 18:40:17,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:40:17,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1089907697] [2024-11-08 18:40:17,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:17,495 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 18:40:17,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:40:17,496 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:40:17,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:40:18,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:18,145 INFO L255 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 18:40:18,150 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:40:18,793 INFO L134 CoverageAnalysis]: Checked inductivity of 2585 backedges. 1238 proven. 36 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2024-11-08 18:40:18,797 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:40:19,215 INFO L134 CoverageAnalysis]: Checked inductivity of 2585 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 2560 trivial. 0 not checked. [2024-11-08 18:40:19,219 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:40:19,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1089907697] [2024-11-08 18:40:19,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1089907697] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:40:19,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:40:19,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 12 [2024-11-08 18:40:19,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981149139] [2024-11-08 18:40:19,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:40:19,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:40:19,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:40:19,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:40:19,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:40:19,222 INFO L87 Difference]: Start difference. First operand 2055 states and 2545 transitions. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:40:19,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:40:19,892 INFO L93 Difference]: Finished difference Result 3900 states and 4790 transitions. [2024-11-08 18:40:19,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:40:19,893 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 285 [2024-11-08 18:40:19,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:40:19,899 INFO L225 Difference]: With dead ends: 3900 [2024-11-08 18:40:19,900 INFO L226 Difference]: Without dead ends: 2327 [2024-11-08 18:40:19,903 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 570 GetRequests, 558 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2024-11-08 18:40:19,904 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 70 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:40:19,904 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 623 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:40:19,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2327 states. [2024-11-08 18:40:20,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2327 to 1913. [2024-11-08 18:40:20,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1913 states, 1817 states have (on average 1.1656576774903686) internal successors, (2118), 1822 states have internal predecessors, (2118), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-08 18:40:20,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1913 states to 1913 states and 2258 transitions. [2024-11-08 18:40:20,195 INFO L78 Accepts]: Start accepts. Automaton has 1913 states and 2258 transitions. Word has length 285 [2024-11-08 18:40:20,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:40:20,195 INFO L471 AbstractCegarLoop]: Abstraction has 1913 states and 2258 transitions. [2024-11-08 18:40:20,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:40:20,196 INFO L276 IsEmpty]: Start isEmpty. Operand 1913 states and 2258 transitions. [2024-11-08 18:40:20,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2024-11-08 18:40:20,200 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:40:20,200 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:40:20,210 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Ended with exit code 0 [2024-11-08 18:40:20,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:40:20,401 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:40:20,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:20,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1005506220, now seen corresponding path program 1 times [2024-11-08 18:40:20,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:40:20,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1672647564] [2024-11-08 18:40:20,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:20,403 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 18:40:20,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:40:20,405 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:40:20,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:40:21,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:21,069 INFO L255 TraceCheckSpWp]: Trace formula consists of 534 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 18:40:21,074 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:40:21,086 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 18:40:21,181 INFO L134 CoverageAnalysis]: Checked inductivity of 2585 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 2562 trivial. 0 not checked. [2024-11-08 18:40:21,181 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:40:21,181 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:40:21,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1672647564] [2024-11-08 18:40:21,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1672647564] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:40:21,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:40:21,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:40:21,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256008774] [2024-11-08 18:40:21,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:40:21,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:40:21,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:40:21,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:40:21,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:40:21,184 INFO L87 Difference]: Start difference. First operand 1913 states and 2258 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:40:21,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:40:21,824 INFO L93 Difference]: Finished difference Result 3675 states and 4322 transitions. [2024-11-08 18:40:21,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:40:21,825 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 285 [2024-11-08 18:40:21,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:40:21,830 INFO L225 Difference]: With dead ends: 3675 [2024-11-08 18:40:21,830 INFO L226 Difference]: Without dead ends: 2260 [2024-11-08 18:40:21,832 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:40:21,833 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 57 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 836 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:40:21,833 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 836 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:40:21,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2260 states. [2024-11-08 18:40:22,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2260 to 1696. [2024-11-08 18:40:22,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1696 states, 1600 states have (on average 1.165625) internal successors, (1865), 1605 states have internal predecessors, (1865), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-08 18:40:22,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1696 states to 1696 states and 2005 transitions. [2024-11-08 18:40:22,153 INFO L78 Accepts]: Start accepts. Automaton has 1696 states and 2005 transitions. Word has length 285 [2024-11-08 18:40:22,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:40:22,154 INFO L471 AbstractCegarLoop]: Abstraction has 1696 states and 2005 transitions. [2024-11-08 18:40:22,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:40:22,154 INFO L276 IsEmpty]: Start isEmpty. Operand 1696 states and 2005 transitions. [2024-11-08 18:40:22,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2024-11-08 18:40:22,159 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:40:22,159 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:40:22,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Ended with exit code 0 [2024-11-08 18:40:22,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:40:22,360 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:40:22,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:22,361 INFO L85 PathProgramCache]: Analyzing trace with hash 749271274, now seen corresponding path program 1 times [2024-11-08 18:40:22,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:40:22,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1198821005] [2024-11-08 18:40:22,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:22,362 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:40:22,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:40:22,364 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:40:22,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:40:22,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:22,988 INFO L255 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 18:40:22,996 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:40:23,127 INFO L134 CoverageAnalysis]: Checked inductivity of 2585 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 2561 trivial. 0 not checked. [2024-11-08 18:40:23,127 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:40:23,128 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:40:23,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1198821005] [2024-11-08 18:40:23,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1198821005] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:40:23,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:40:23,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:40:23,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120506056] [2024-11-08 18:40:23,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:40:23,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:40:23,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:40:23,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:40:23,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:40:23,130 INFO L87 Difference]: Start difference. First operand 1696 states and 2005 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:40:23,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:40:23,773 INFO L93 Difference]: Finished difference Result 3249 states and 3798 transitions. [2024-11-08 18:40:23,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:40:23,774 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 285 [2024-11-08 18:40:23,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:40:23,778 INFO L225 Difference]: With dead ends: 3249 [2024-11-08 18:40:23,778 INFO L226 Difference]: Without dead ends: 1826 [2024-11-08 18:40:23,781 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:40:23,781 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 42 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 764 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:40:23,781 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 764 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:40:23,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1826 states. [2024-11-08 18:40:24,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1826 to 1576. [2024-11-08 18:40:24,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1480 states have (on average 1.1554054054054055) internal successors, (1710), 1485 states have internal predecessors, (1710), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-08 18:40:24,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 1850 transitions. [2024-11-08 18:40:24,078 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 1850 transitions. Word has length 285 [2024-11-08 18:40:24,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:40:24,078 INFO L471 AbstractCegarLoop]: Abstraction has 1576 states and 1850 transitions. [2024-11-08 18:40:24,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:40:24,079 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 1850 transitions. [2024-11-08 18:40:24,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2024-11-08 18:40:24,082 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:40:24,082 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:40:24,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:40:24,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:40:24,283 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:40:24,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:24,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1218460460, now seen corresponding path program 1 times [2024-11-08 18:40:24,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:40:24,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [566657506] [2024-11-08 18:40:24,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:24,285 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 18:40:24,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:40:24,287 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:40:24,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:40:24,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:24,979 INFO L255 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 18:40:24,986 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:40:25,397 INFO L134 CoverageAnalysis]: Checked inductivity of 2585 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 2559 trivial. 0 not checked. [2024-11-08 18:40:25,398 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:40:25,398 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:40:25,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [566657506] [2024-11-08 18:40:25,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [566657506] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:40:25,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:40:25,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:40:25,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19345869] [2024-11-08 18:40:25,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:40:25,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:40:25,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:40:25,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:40:25,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:40:25,401 INFO L87 Difference]: Start difference. First operand 1576 states and 1850 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:40:26,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:40:26,273 INFO L93 Difference]: Finished difference Result 3168 states and 3672 transitions. [2024-11-08 18:40:26,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:40:26,274 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 285 [2024-11-08 18:40:26,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:40:26,278 INFO L225 Difference]: With dead ends: 3168 [2024-11-08 18:40:26,278 INFO L226 Difference]: Without dead ends: 1769 [2024-11-08 18:40:26,280 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:40:26,281 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 93 mSDsluCounter, 809 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 991 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:40:26,281 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 991 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 18:40:26,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1769 states. [2024-11-08 18:40:26,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1769 to 1510. [2024-11-08 18:40:26,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1510 states, 1414 states have (on average 1.1456859971711457) internal successors, (1620), 1419 states have internal predecessors, (1620), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-08 18:40:26,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1510 states to 1510 states and 1760 transitions. [2024-11-08 18:40:26,566 INFO L78 Accepts]: Start accepts. Automaton has 1510 states and 1760 transitions. Word has length 285 [2024-11-08 18:40:26,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:40:26,567 INFO L471 AbstractCegarLoop]: Abstraction has 1510 states and 1760 transitions. [2024-11-08 18:40:26,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:40:26,579 INFO L276 IsEmpty]: Start isEmpty. Operand 1510 states and 1760 transitions. [2024-11-08 18:40:26,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2024-11-08 18:40:26,584 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:40:26,585 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:40:26,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:40:26,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:40:26,786 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:40:26,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:26,787 INFO L85 PathProgramCache]: Analyzing trace with hash -470483282, now seen corresponding path program 1 times [2024-11-08 18:40:26,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:40:26,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [373892885] [2024-11-08 18:40:26,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:26,788 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 18:40:26,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:40:26,790 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:40:26,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:40:27,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:27,468 INFO L255 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 18:40:27,472 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:40:27,584 INFO L134 CoverageAnalysis]: Checked inductivity of 2585 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2567 trivial. 0 not checked. [2024-11-08 18:40:27,584 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:40:27,585 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:40:27,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [373892885] [2024-11-08 18:40:27,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [373892885] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:40:27,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:40:27,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:40:27,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580259535] [2024-11-08 18:40:27,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:40:27,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:40:27,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:40:27,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:40:27,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:40:27,588 INFO L87 Difference]: Start difference. First operand 1510 states and 1760 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:40:28,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:40:28,188 INFO L93 Difference]: Finished difference Result 3055 states and 3512 transitions. [2024-11-08 18:40:28,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:40:28,189 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 285 [2024-11-08 18:40:28,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:40:28,193 INFO L225 Difference]: With dead ends: 3055 [2024-11-08 18:40:28,193 INFO L226 Difference]: Without dead ends: 1638 [2024-11-08 18:40:28,195 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:40:28,196 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 41 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:40:28,196 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 585 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:40:28,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2024-11-08 18:40:28,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 1394. [2024-11-08 18:40:28,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1298 states have (on average 1.12095531587057) internal successors, (1455), 1303 states have internal predecessors, (1455), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-08 18:40:28,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 1595 transitions. [2024-11-08 18:40:28,483 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 1595 transitions. Word has length 285 [2024-11-08 18:40:28,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:40:28,484 INFO L471 AbstractCegarLoop]: Abstraction has 1394 states and 1595 transitions. [2024-11-08 18:40:28,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:40:28,484 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 1595 transitions. [2024-11-08 18:40:28,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2024-11-08 18:40:28,487 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:40:28,488 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:40:28,496 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:40:28,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:40:28,689 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:40:28,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:28,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1578129328, now seen corresponding path program 1 times [2024-11-08 18:40:28,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:40:28,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1989292168] [2024-11-08 18:40:28,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:28,690 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 18:40:28,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:40:28,692 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:40:28,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (53)] Waiting until timeout for monitored process [2024-11-08 18:40:29,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:29,368 INFO L255 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 18:40:29,373 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:40:29,902 INFO L134 CoverageAnalysis]: Checked inductivity of 2581 backedges. 1234 proven. 36 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2024-11-08 18:40:29,903 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:40:30,149 INFO L134 CoverageAnalysis]: Checked inductivity of 2581 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 2566 trivial. 0 not checked. [2024-11-08 18:40:30,150 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:40:30,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1989292168] [2024-11-08 18:40:30,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1989292168] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:40:30,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:40:30,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2024-11-08 18:40:30,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201067322] [2024-11-08 18:40:30,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:40:30,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:40:30,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:40:30,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:40:30,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:40:30,153 INFO L87 Difference]: Start difference. First operand 1394 states and 1595 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:40:30,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:40:30,938 INFO L93 Difference]: Finished difference Result 2867 states and 3243 transitions. [2024-11-08 18:40:30,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:40:30,940 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 286 [2024-11-08 18:40:30,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:40:30,946 INFO L225 Difference]: With dead ends: 2867 [2024-11-08 18:40:30,946 INFO L226 Difference]: Without dead ends: 1540 [2024-11-08 18:40:30,949 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 571 GetRequests, 562 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:40:30,950 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 43 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:40:30,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 508 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:40:30,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1540 states. [2024-11-08 18:40:31,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1540 to 1301. [2024-11-08 18:40:31,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1301 states, 1205 states have (on average 1.103734439834025) internal successors, (1330), 1210 states have internal predecessors, (1330), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-08 18:40:31,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1301 states to 1301 states and 1470 transitions. [2024-11-08 18:40:31,319 INFO L78 Accepts]: Start accepts. Automaton has 1301 states and 1470 transitions. Word has length 286 [2024-11-08 18:40:31,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:40:31,319 INFO L471 AbstractCegarLoop]: Abstraction has 1301 states and 1470 transitions. [2024-11-08 18:40:31,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:40:31,320 INFO L276 IsEmpty]: Start isEmpty. Operand 1301 states and 1470 transitions. [2024-11-08 18:40:31,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2024-11-08 18:40:31,322 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:40:31,323 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:40:31,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (53)] Forceful destruction successful, exit code 0 [2024-11-08 18:40:31,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:40:31,523 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:40:31,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:31,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1738759612, now seen corresponding path program 1 times [2024-11-08 18:40:31,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:40:31,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1088904642] [2024-11-08 18:40:31,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:31,526 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 18:40:31,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:40:31,527 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:40:31,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:40:32,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:32,211 INFO L255 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 18:40:32,216 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:40:32,294 INFO L134 CoverageAnalysis]: Checked inductivity of 2581 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 2567 trivial. 0 not checked. [2024-11-08 18:40:32,294 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:40:32,295 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:40:32,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1088904642] [2024-11-08 18:40:32,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1088904642] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:40:32,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:40:32,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:40:32,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740386424] [2024-11-08 18:40:32,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:40:32,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:40:32,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:40:32,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:40:32,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:40:32,298 INFO L87 Difference]: Start difference. First operand 1301 states and 1470 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:40:32,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:40:32,845 INFO L93 Difference]: Finished difference Result 2540 states and 2847 transitions. [2024-11-08 18:40:32,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:40:32,846 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 287 [2024-11-08 18:40:32,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:40:32,848 INFO L225 Difference]: With dead ends: 2540 [2024-11-08 18:40:32,848 INFO L226 Difference]: Without dead ends: 0 [2024-11-08 18:40:32,851 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:40:32,851 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 28 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:40:32,852 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 533 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:40:32,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-08 18:40:32,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-08 18:40:32,853 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 18:40:32,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-08 18:40:32,855 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 287 [2024-11-08 18:40:32,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:40:32,856 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 18:40:32,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-08 18:40:32,856 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-08 18:40:32,857 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 18:40:32,860 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 18:40:32,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -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 18:40:33,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc8bdba-2c6e-49c0-803c-597cfbc7d77f/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:40:33,068 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] [2024-11-08 18:40:33,071 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-08 18:41:05,233 WARN L286 SmtUtils]: Spent 29.91s on a formula simplification. DAG size of input: 302 DAG size of output: 322 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or)