./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/ex3_forlist.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a 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_cdeb18db-8edc-421f-9dd4-c8e71a92396d/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb18db-8edc-421f-9dd4-c8e71a92396d/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb18db-8edc-421f-9dd4-c8e71a92396d/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb18db-8edc-421f-9dd4-c8e71a92396d/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/ex3_forlist.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb18db-8edc-421f-9dd4-c8e71a92396d/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb18db-8edc-421f-9dd4-c8e71a92396d/bin/uautomizer-verify-4GaUIPS5ZU --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 ddbd4e73adf4663f87721f5aa250c32f7b058621a618ab1d03544a940de1ce0e --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:05:46,058 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:05:46,151 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb18db-8edc-421f-9dd4-c8e71a92396d/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 22:05:46,158 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:05:46,158 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:05:46,198 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:05:46,199 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:05:46,200 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:05:46,201 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:05:46,203 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:05:46,204 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:05:46,204 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:05:46,205 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:05:46,207 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:05:46,208 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:05:46,208 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:05:46,209 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:05:46,209 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:05:46,210 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:05:46,210 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:05:46,210 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:05:46,211 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:05:46,211 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:05:46,212 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:05:46,212 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:05:46,212 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:05:46,226 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:05:46,229 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:05:46,230 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:05:46,231 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:05:46,232 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:05:46,232 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:05:46,233 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:05:46,233 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:05:46,233 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:05:46,233 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:05:46,234 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:05:46,234 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:05:46,238 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:05:46,238 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:05:46,238 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:05:46,239 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:05:46,239 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_cdeb18db-8edc-421f-9dd4-c8e71a92396d/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb18db-8edc-421f-9dd4-c8e71a92396d/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ddbd4e73adf4663f87721f5aa250c32f7b058621a618ab1d03544a940de1ce0e [2024-10-31 22:05:46,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:05:46,746 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:05:46,754 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:05:46,755 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:05:46,760 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:05:46,761 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb18db-8edc-421f-9dd4-c8e71a92396d/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/ldv-regression/ex3_forlist.i Unable to find full path for "g++" [2024-10-31 22:05:49,061 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:05:49,383 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:05:49,384 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb18db-8edc-421f-9dd4-c8e71a92396d/sv-benchmarks/c/ldv-regression/ex3_forlist.i [2024-10-31 22:05:49,395 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb18db-8edc-421f-9dd4-c8e71a92396d/bin/uautomizer-verify-4GaUIPS5ZU/data/1a1b2ab4a/dad52fa6b8ba4d879ca44366e7c5e228/FLAGb1c2d3071 [2024-10-31 22:05:49,416 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb18db-8edc-421f-9dd4-c8e71a92396d/bin/uautomizer-verify-4GaUIPS5ZU/data/1a1b2ab4a/dad52fa6b8ba4d879ca44366e7c5e228 [2024-10-31 22:05:49,420 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:05:49,422 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:05:49,424 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:05:49,424 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:05:49,432 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:05:49,434 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:05:49" (1/1) ... [2024-10-31 22:05:49,435 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d749691 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:49, skipping insertion in model container [2024-10-31 22:05:49,436 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:05:49" (1/1) ... [2024-10-31 22:05:49,464 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:05:49,677 WARN L251 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_cdeb18db-8edc-421f-9dd4-c8e71a92396d/sv-benchmarks/c/ldv-regression/ex3_forlist.i[293,306] [2024-10-31 22:05:49,732 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:05:49,746 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:05:49,761 WARN L251 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_cdeb18db-8edc-421f-9dd4-c8e71a92396d/sv-benchmarks/c/ldv-regression/ex3_forlist.i[293,306] [2024-10-31 22:05:49,789 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:05:49,843 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:05:49,843 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:49 WrapperNode [2024-10-31 22:05:49,845 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:05:49,846 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:05:49,847 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:05:49,847 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:05:49,861 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:49" (1/1) ... [2024-10-31 22:05:49,871 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:49" (1/1) ... [2024-10-31 22:05:49,900 INFO L138 Inliner]: procedures = 19, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 69 [2024-10-31 22:05:49,900 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:05:49,901 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:05:49,902 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:05:49,902 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:05:49,926 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:49" (1/1) ... [2024-10-31 22:05:49,927 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:49" (1/1) ... [2024-10-31 22:05:49,938 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:49" (1/1) ... [2024-10-31 22:05:49,979 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 0, 6, 6]. 43 percent of accesses are in the largest equivalence class. The 6 initializations are split as follows [2, 0, 2, 2]. The 5 writes are split as follows [0, 0, 2, 3]. [2024-10-31 22:05:49,979 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:49" (1/1) ... [2024-10-31 22:05:49,979 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:49" (1/1) ... [2024-10-31 22:05:49,998 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:49" (1/1) ... [2024-10-31 22:05:50,002 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:49" (1/1) ... [2024-10-31 22:05:50,004 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:49" (1/1) ... [2024-10-31 22:05:50,006 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:49" (1/1) ... [2024-10-31 22:05:50,013 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:05:50,016 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:05:50,016 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:05:50,016 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:05:50,017 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:49" (1/1) ... [2024-10-31 22:05:50,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:05:50,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb18db-8edc-421f-9dd4-c8e71a92396d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:05:50,064 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb18db-8edc-421f-9dd4-c8e71a92396d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:05:50,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb18db-8edc-421f-9dd4-c8e71a92396d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:05:50,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-31 22:05:50,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-31 22:05:50,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-31 22:05:50,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-31 22:05:50,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-31 22:05:50,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-31 22:05:50,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-31 22:05:50,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-10-31 22:05:50,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:05:50,111 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-10-31 22:05:50,111 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-10-31 22:05:50,112 INFO L130 BoogieDeclarations]: Found specification of procedure g [2024-10-31 22:05:50,112 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2024-10-31 22:05:50,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:05:50,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 22:05:50,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-31 22:05:50,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-31 22:05:50,113 INFO L130 BoogieDeclarations]: Found specification of procedure fake_malloc [2024-10-31 22:05:50,113 INFO L138 BoogieDeclarations]: Found implementation of procedure fake_malloc [2024-10-31 22:05:50,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-31 22:05:50,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-31 22:05:50,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-31 22:05:50,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-31 22:05:50,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-31 22:05:50,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-31 22:05:50,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-31 22:05:50,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-31 22:05:50,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:05:50,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:05:50,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-31 22:05:50,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-31 22:05:50,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-31 22:05:50,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-31 22:05:50,294 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:05:50,297 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:05:50,651 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-10-31 22:05:50,652 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:05:50,680 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:05:50,680 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-31 22:05:50,681 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:05:50 BoogieIcfgContainer [2024-10-31 22:05:50,681 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:05:50,686 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:05:50,687 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:05:50,693 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:05:50,693 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:05:49" (1/3) ... [2024-10-31 22:05:50,694 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b4b5e94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:05:50, skipping insertion in model container [2024-10-31 22:05:50,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:49" (2/3) ... [2024-10-31 22:05:50,696 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b4b5e94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:05:50, skipping insertion in model container [2024-10-31 22:05:50,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:05:50" (3/3) ... [2024-10-31 22:05:50,699 INFO L112 eAbstractionObserver]: Analyzing ICFG ex3_forlist.i [2024-10-31 22:05:50,726 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:05:50,727 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 22:05:50,825 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:05:50,833 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;@218d4aa7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:05:50,833 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-31 22:05:50,838 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 28 states have internal predecessors, (38), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-31 22:05:50,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-31 22:05:50,851 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:05:50,852 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-31 22:05:50,852 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting gErr0ASSERT_VIOLATIONERROR_FUNCTION === [gErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:05:50,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:50,862 INFO L85 PathProgramCache]: Analyzing trace with hash -431383929, now seen corresponding path program 1 times [2024-10-31 22:05:50,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:50,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817110455] [2024-10-31 22:05:50,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:50,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:51,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:51,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-31 22:05:51,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:51,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:05:51,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:51,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-31 22:05:51,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:51,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-31 22:05:51,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:51,364 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-31 22:05:51,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:51,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817110455] [2024-10-31 22:05:51,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817110455] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:51,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:51,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:05:51,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135939954] [2024-10-31 22:05:51,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:51,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:05:51,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:51,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:05:51,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:05:51,409 INFO L87 Difference]: Start difference. First operand has 38 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 28 states have internal predecessors, (38), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-31 22:05:51,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:05:51,657 INFO L93 Difference]: Finished difference Result 82 states and 114 transitions. [2024-10-31 22:05:51,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:05:51,660 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 31 [2024-10-31 22:05:51,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:05:51,669 INFO L225 Difference]: With dead ends: 82 [2024-10-31 22:05:51,670 INFO L226 Difference]: Without dead ends: 44 [2024-10-31 22:05:51,673 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:05:51,677 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 47 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:05:51,678 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 48 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:05:51,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-10-31 22:05:51,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 33. [2024-10-31 22:05:51,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 24 states have internal predecessors, (29), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-31 22:05:51,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2024-10-31 22:05:51,734 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 40 transitions. Word has length 31 [2024-10-31 22:05:51,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:05:51,735 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 40 transitions. [2024-10-31 22:05:51,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-31 22:05:51,735 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2024-10-31 22:05:51,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-31 22:05:51,738 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:05:51,738 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-31 22:05:51,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:05:51,739 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting gErr0ASSERT_VIOLATIONERROR_FUNCTION === [gErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:05:51,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:51,740 INFO L85 PathProgramCache]: Analyzing trace with hash -621686623, now seen corresponding path program 1 times [2024-10-31 22:05:51,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:51,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675993130] [2024-10-31 22:05:51,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:51,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:51,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:51,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-31 22:05:51,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:51,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:05:51,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:52,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-31 22:05:52,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:52,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-31 22:05:52,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:52,023 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-31 22:05:52,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:52,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675993130] [2024-10-31 22:05:52,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675993130] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:52,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:52,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:05:52,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096075222] [2024-10-31 22:05:52,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:52,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:05:52,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:52,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:05:52,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:05:52,028 INFO L87 Difference]: Start difference. First operand 33 states and 40 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-31 22:05:52,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:05:52,241 INFO L93 Difference]: Finished difference Result 75 states and 92 transitions. [2024-10-31 22:05:52,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:05:52,242 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 31 [2024-10-31 22:05:52,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:05:52,243 INFO L225 Difference]: With dead ends: 75 [2024-10-31 22:05:52,243 INFO L226 Difference]: Without dead ends: 46 [2024-10-31 22:05:52,244 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:05:52,245 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 48 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:05:52,246 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 40 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:05:52,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-10-31 22:05:52,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 34. [2024-10-31 22:05:52,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 24 states have (on average 1.25) internal successors, (30), 25 states have internal predecessors, (30), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-31 22:05:52,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 41 transitions. [2024-10-31 22:05:52,258 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 41 transitions. Word has length 31 [2024-10-31 22:05:52,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:05:52,258 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 41 transitions. [2024-10-31 22:05:52,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-31 22:05:52,259 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2024-10-31 22:05:52,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-10-31 22:05:52,260 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:05:52,260 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-31 22:05:52,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:05:52,261 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting gErr0ASSERT_VIOLATIONERROR_FUNCTION === [gErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:05:52,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:52,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1110999905, now seen corresponding path program 1 times [2024-10-31 22:05:52,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:52,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651436157] [2024-10-31 22:05:52,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:52,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:52,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:52,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-31 22:05:52,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:52,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-31 22:05:52,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:52,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-31 22:05:52,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:52,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-31 22:05:52,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:52,514 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 22:05:52,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:52,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651436157] [2024-10-31 22:05:52,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651436157] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:05:52,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [554337677] [2024-10-31 22:05:52,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:52,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:05:52,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb18db-8edc-421f-9dd4-c8e71a92396d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:05:52,519 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb18db-8edc-421f-9dd4-c8e71a92396d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:05:52,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb18db-8edc-421f-9dd4-c8e71a92396d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:05:52,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:52,670 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:05:52,677 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:05:52,707 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-31 22:05:52,711 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:05:52,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [554337677] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:52,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:05:52,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 7 [2024-10-31 22:05:52,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273082320] [2024-10-31 22:05:52,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:52,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:05:52,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:52,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:05:52,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:05:52,718 INFO L87 Difference]: Start difference. First operand 34 states and 41 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 22:05:52,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:05:52,748 INFO L93 Difference]: Finished difference Result 56 states and 71 transitions. [2024-10-31 22:05:52,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:05:52,749 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 33 [2024-10-31 22:05:52,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:05:52,750 INFO L225 Difference]: With dead ends: 56 [2024-10-31 22:05:52,751 INFO L226 Difference]: Without dead ends: 37 [2024-10-31 22:05:52,751 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:05:52,753 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 2 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:05:52,753 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 72 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:05:52,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-10-31 22:05:52,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2024-10-31 22:05:52,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 25 states have (on average 1.24) internal successors, (31), 26 states have internal predecessors, (31), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-31 22:05:52,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2024-10-31 22:05:52,763 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 33 [2024-10-31 22:05:52,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:05:52,763 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2024-10-31 22:05:52,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 22:05:52,767 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2024-10-31 22:05:52,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-10-31 22:05:52,769 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:05:52,769 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-31 22:05:52,796 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb18db-8edc-421f-9dd4-c8e71a92396d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-31 22:05:52,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb18db-8edc-421f-9dd4-c8e71a92396d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:05:52,970 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting gErr0ASSERT_VIOLATIONERROR_FUNCTION === [gErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:05:52,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:52,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1230450813, now seen corresponding path program 1 times [2024-10-31 22:05:52,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:52,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724640283] [2024-10-31 22:05:52,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:52,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:53,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:53,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-31 22:05:53,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:53,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-31 22:05:53,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:53,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-31 22:05:53,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:53,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-31 22:05:53,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:53,243 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-31 22:05:53,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:53,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724640283] [2024-10-31 22:05:53,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724640283] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:05:53,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1951342531] [2024-10-31 22:05:53,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:53,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:05:53,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb18db-8edc-421f-9dd4-c8e71a92396d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:05:53,252 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb18db-8edc-421f-9dd4-c8e71a92396d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:05:53,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb18db-8edc-421f-9dd4-c8e71a92396d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 22:05:53,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:53,401 INFO L255 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 22:05:53,403 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:05:53,447 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-31 22:05:53,447 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:05:53,517 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-31 22:05:53,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1951342531] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:05:53,518 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:05:53,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 7 [2024-10-31 22:05:53,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009900635] [2024-10-31 22:05:53,519 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:05:53,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:05:53,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:53,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:05:53,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:05:53,524 INFO L87 Difference]: Start difference. First operand 35 states and 42 transitions. Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-10-31 22:05:53,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:05:53,850 INFO L93 Difference]: Finished difference Result 78 states and 95 transitions. [2024-10-31 22:05:53,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:05:53,851 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 35 [2024-10-31 22:05:53,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:05:53,853 INFO L225 Difference]: With dead ends: 78 [2024-10-31 22:05:53,853 INFO L226 Difference]: Without dead ends: 48 [2024-10-31 22:05:53,854 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 74 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:05:53,856 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 47 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-31 22:05:53,856 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 62 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-31 22:05:53,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-10-31 22:05:53,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 37. [2024-10-31 22:05:53,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 28 states have internal predecessors, (33), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-31 22:05:53,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2024-10-31 22:05:53,869 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 35 [2024-10-31 22:05:53,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:05:53,870 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2024-10-31 22:05:53,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-10-31 22:05:53,871 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2024-10-31 22:05:53,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-10-31 22:05:53,872 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:05:53,873 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-31 22:05:53,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb18db-8edc-421f-9dd4-c8e71a92396d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-31 22:05:54,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb18db-8edc-421f-9dd4-c8e71a92396d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:05:54,074 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting gErr0ASSERT_VIOLATIONERROR_FUNCTION === [gErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:05:54,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:54,074 INFO L85 PathProgramCache]: Analyzing trace with hash 828026235, now seen corresponding path program 2 times [2024-10-31 22:05:54,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:54,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95880491] [2024-10-31 22:05:54,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:54,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:54,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:54,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:05:54,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:54,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-31 22:05:54,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:54,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-31 22:05:54,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:54,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-31 22:05:54,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:54,889 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-31 22:05:54,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:54,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95880491] [2024-10-31 22:05:54,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95880491] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:54,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:54,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-31 22:05:54,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674494267] [2024-10-31 22:05:54,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:54,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-31 22:05:54,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:54,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-31 22:05:54,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-10-31 22:05:54,895 INFO L87 Difference]: Start difference. First operand 37 states and 44 transitions. Second operand has 10 states, 10 states have (on average 2.4) internal successors, (24), 7 states have internal predecessors, (24), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-31 22:05:55,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:05:55,633 INFO L93 Difference]: Finished difference Result 90 states and 114 transitions. [2024-10-31 22:05:55,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-31 22:05:55,634 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 7 states have internal predecessors, (24), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 37 [2024-10-31 22:05:55,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:05:55,637 INFO L225 Difference]: With dead ends: 90 [2024-10-31 22:05:55,637 INFO L226 Difference]: Without dead ends: 79 [2024-10-31 22:05:55,638 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2024-10-31 22:05:55,639 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 138 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-31 22:05:55,639 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 81 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-31 22:05:55,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-10-31 22:05:55,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 64. [2024-10-31 22:05:55,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 47 states have (on average 1.297872340425532) internal successors, (61), 50 states have internal predecessors, (61), 9 states have call successors, (9), 5 states have call predecessors, (9), 7 states have return successors, (12), 8 states have call predecessors, (12), 7 states have call successors, (12) [2024-10-31 22:05:55,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 82 transitions. [2024-10-31 22:05:55,667 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 82 transitions. Word has length 37 [2024-10-31 22:05:55,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:05:55,668 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 82 transitions. [2024-10-31 22:05:55,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 7 states have internal predecessors, (24), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-31 22:05:55,668 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 82 transitions. [2024-10-31 22:05:55,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-10-31 22:05:55,670 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:05:55,672 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-31 22:05:55,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:05:55,672 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting gErr0ASSERT_VIOLATIONERROR_FUNCTION === [gErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:05:55,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:55,673 INFO L85 PathProgramCache]: Analyzing trace with hash 2143087823, now seen corresponding path program 1 times [2024-10-31 22:05:55,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:55,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431173371] [2024-10-31 22:05:55,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:55,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:55,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:56,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:05:56,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:56,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-31 22:05:56,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:56,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-31 22:05:56,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:56,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-31 22:05:56,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:56,549 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-31 22:05:56,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:56,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431173371] [2024-10-31 22:05:56,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431173371] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:05:56,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1539384400] [2024-10-31 22:05:56,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:56,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:05:56,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb18db-8edc-421f-9dd4-c8e71a92396d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:05:56,552 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb18db-8edc-421f-9dd4-c8e71a92396d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:05:56,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb18db-8edc-421f-9dd4-c8e71a92396d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-31 22:05:56,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:56,711 INFO L255 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-10-31 22:05:56,714 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:05:57,070 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 [2024-10-31 22:05:57,153 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 7 treesize of output 3 [2024-10-31 22:05:57,310 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-31 22:05:57,311 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:05:57,646 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 14 treesize of output 12 [2024-10-31 22:05:57,652 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 16 [2024-10-31 22:05:57,975 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-31 22:05:57,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1539384400] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:05:57,976 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:05:57,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 37 [2024-10-31 22:05:57,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551078140] [2024-10-31 22:05:57,977 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:05:57,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-10-31 22:05:57,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:57,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-10-31 22:05:57,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=1200, Unknown=0, NotChecked=0, Total=1332 [2024-10-31 22:05:57,983 INFO L87 Difference]: Start difference. First operand 64 states and 82 transitions. Second operand has 37 states, 34 states have (on average 1.9411764705882353) internal successors, (66), 26 states have internal predecessors, (66), 9 states have call successors, (13), 9 states have call predecessors, (13), 11 states have return successors, (11), 8 states have call predecessors, (11), 8 states have call successors, (11) [2024-10-31 22:05:59,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:05:59,461 INFO L93 Difference]: Finished difference Result 136 states and 167 transitions. [2024-10-31 22:05:59,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-31 22:05:59,462 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 34 states have (on average 1.9411764705882353) internal successors, (66), 26 states have internal predecessors, (66), 9 states have call successors, (13), 9 states have call predecessors, (13), 11 states have return successors, (11), 8 states have call predecessors, (11), 8 states have call successors, (11) Word has length 40 [2024-10-31 22:05:59,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:05:59,464 INFO L225 Difference]: With dead ends: 136 [2024-10-31 22:05:59,464 INFO L226 Difference]: Without dead ends: 105 [2024-10-31 22:05:59,466 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 59 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 434 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=386, Invalid=2370, Unknown=0, NotChecked=0, Total=2756 [2024-10-31 22:05:59,467 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 438 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-31 22:05:59,467 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 98 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-31 22:05:59,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-10-31 22:05:59,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 90. [2024-10-31 22:05:59,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 67 states have (on average 1.3134328358208955) internal successors, (88), 71 states have internal predecessors, (88), 12 states have call successors, (12), 7 states have call predecessors, (12), 10 states have return successors, (14), 11 states have call predecessors, (14), 8 states have call successors, (14) [2024-10-31 22:05:59,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 114 transitions. [2024-10-31 22:05:59,491 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 114 transitions. Word has length 40 [2024-10-31 22:05:59,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:05:59,492 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 114 transitions. [2024-10-31 22:05:59,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 34 states have (on average 1.9411764705882353) internal successors, (66), 26 states have internal predecessors, (66), 9 states have call successors, (13), 9 states have call predecessors, (13), 11 states have return successors, (11), 8 states have call predecessors, (11), 8 states have call successors, (11) [2024-10-31 22:05:59,493 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 114 transitions. [2024-10-31 22:05:59,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-10-31 22:05:59,494 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:05:59,494 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-31 22:05:59,515 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb18db-8edc-421f-9dd4-c8e71a92396d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-31 22:05:59,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb18db-8edc-421f-9dd4-c8e71a92396d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-31 22:05:59,695 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting gErr0ASSERT_VIOLATIONERROR_FUNCTION === [gErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:05:59,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:59,696 INFO L85 PathProgramCache]: Analyzing trace with hash -309149075, now seen corresponding path program 1 times [2024-10-31 22:05:59,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:59,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477461776] [2024-10-31 22:05:59,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:59,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:59,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:59,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:05:59,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:59,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-31 22:05:59,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:59,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-31 22:05:59,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:59,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-31 22:05:59,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:59,846 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-31 22:05:59,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:59,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477461776] [2024-10-31 22:05:59,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477461776] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:05:59,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [680667059] [2024-10-31 22:05:59,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:59,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:05:59,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb18db-8edc-421f-9dd4-c8e71a92396d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:05:59,849 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb18db-8edc-421f-9dd4-c8e71a92396d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:05:59,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb18db-8edc-421f-9dd4-c8e71a92396d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-31 22:05:59,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:59,989 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 22:05:59,991 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:06:00,005 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-31 22:06:00,006 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:06:00,048 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-31 22:06:00,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [680667059] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:06:00,049 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:06:00,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 6 [2024-10-31 22:06:00,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318214345] [2024-10-31 22:06:00,050 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:06:00,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:06:00,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:00,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:06:00,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:06:00,052 INFO L87 Difference]: Start difference. First operand 90 states and 114 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-31 22:06:00,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:06:00,312 INFO L93 Difference]: Finished difference Result 166 states and 214 transitions. [2024-10-31 22:06:00,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:06:00,313 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 41 [2024-10-31 22:06:00,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:06:00,315 INFO L225 Difference]: With dead ends: 166 [2024-10-31 22:06:00,315 INFO L226 Difference]: Without dead ends: 102 [2024-10-31 22:06:00,316 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 87 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:06:00,317 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 57 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:06:00,317 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 67 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:06:00,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-10-31 22:06:00,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 94. [2024-10-31 22:06:00,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 71 states have (on average 1.295774647887324) internal successors, (92), 75 states have internal predecessors, (92), 12 states have call successors, (12), 7 states have call predecessors, (12), 10 states have return successors, (14), 11 states have call predecessors, (14), 8 states have call successors, (14) [2024-10-31 22:06:00,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 118 transitions. [2024-10-31 22:06:00,344 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 118 transitions. Word has length 41 [2024-10-31 22:06:00,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:06:00,344 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 118 transitions. [2024-10-31 22:06:00,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-31 22:06:00,345 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 118 transitions. [2024-10-31 22:06:00,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-31 22:06:00,346 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:06:00,346 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-10-31 22:06:00,367 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb18db-8edc-421f-9dd4-c8e71a92396d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-31 22:06:00,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb18db-8edc-421f-9dd4-c8e71a92396d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:06:00,547 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting gErr0ASSERT_VIOLATIONERROR_FUNCTION === [gErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:06:00,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:00,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1965354537, now seen corresponding path program 1 times [2024-10-31 22:06:00,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:00,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573618247] [2024-10-31 22:06:00,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:00,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:00,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:01,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:06:01,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:01,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-31 22:06:01,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:01,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-31 22:06:01,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:02,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-31 22:06:02,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:02,368 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-31 22:06:02,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:02,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573618247] [2024-10-31 22:06:02,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573618247] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:06:02,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [386881552] [2024-10-31 22:06:02,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:02,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:06:02,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb18db-8edc-421f-9dd4-c8e71a92396d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:02,373 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb18db-8edc-421f-9dd4-c8e71a92396d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:06:02,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb18db-8edc-421f-9dd4-c8e71a92396d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-31 22:06:02,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:02,542 INFO L255 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-10-31 22:06:02,546 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:06:03,025 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 11 treesize of output 7 [2024-10-31 22:06:03,351 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-31 22:06:03,352 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:06:03,687 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 16 treesize of output 14 [2024-10-31 22:06:03,694 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 20 treesize of output 16 [2024-10-31 22:06:04,087 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-31 22:06:04,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [386881552] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:06:04,087 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:06:04,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 17, 17] total 51 [2024-10-31 22:06:04,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661208802] [2024-10-31 22:06:04,088 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:06:04,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-10-31 22:06:04,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:04,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-10-31 22:06:04,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=2396, Unknown=0, NotChecked=0, Total=2550 [2024-10-31 22:06:04,091 INFO L87 Difference]: Start difference. First operand 94 states and 118 transitions. Second operand has 51 states, 44 states have (on average 1.8636363636363635) internal successors, (82), 35 states have internal predecessors, (82), 12 states have call successors, (15), 8 states have call predecessors, (15), 10 states have return successors, (12), 12 states have call predecessors, (12), 9 states have call successors, (12) [2024-10-31 22:06:08,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:06:08,229 INFO L93 Difference]: Finished difference Result 236 states and 302 transitions. [2024-10-31 22:06:08,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-10-31 22:06:08,229 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 44 states have (on average 1.8636363636363635) internal successors, (82), 35 states have internal predecessors, (82), 12 states have call successors, (15), 8 states have call predecessors, (15), 10 states have return successors, (12), 12 states have call predecessors, (12), 9 states have call successors, (12) Word has length 43 [2024-10-31 22:06:08,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:06:08,231 INFO L225 Difference]: With dead ends: 236 [2024-10-31 22:06:08,231 INFO L226 Difference]: Without dead ends: 186 [2024-10-31 22:06:08,235 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1655 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=707, Invalid=6775, Unknown=0, NotChecked=0, Total=7482 [2024-10-31 22:06:08,235 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 320 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 2397 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 2489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 2397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-31 22:06:08,236 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [320 Valid, 201 Invalid, 2489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 2397 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-31 22:06:08,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2024-10-31 22:06:08,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 140. [2024-10-31 22:06:08,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 111 states have (on average 1.2882882882882882) internal successors, (143), 116 states have internal predecessors, (143), 14 states have call successors, (14), 10 states have call predecessors, (14), 14 states have return successors, (19), 13 states have call predecessors, (19), 11 states have call successors, (19) [2024-10-31 22:06:08,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 176 transitions. [2024-10-31 22:06:08,268 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 176 transitions. Word has length 43 [2024-10-31 22:06:08,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:06:08,268 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 176 transitions. [2024-10-31 22:06:08,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 44 states have (on average 1.8636363636363635) internal successors, (82), 35 states have internal predecessors, (82), 12 states have call successors, (15), 8 states have call predecessors, (15), 10 states have return successors, (12), 12 states have call predecessors, (12), 9 states have call successors, (12) [2024-10-31 22:06:08,268 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 176 transitions. [2024-10-31 22:06:08,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-31 22:06:08,270 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:06:08,270 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-10-31 22:06:08,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb18db-8edc-421f-9dd4-c8e71a92396d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-31 22:06:08,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb18db-8edc-421f-9dd4-c8e71a92396d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-10-31 22:06:08,475 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting gErr0ASSERT_VIOLATIONERROR_FUNCTION === [gErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:06:08,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:08,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1392073365, now seen corresponding path program 2 times [2024-10-31 22:06:08,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:08,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426680998] [2024-10-31 22:06:08,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:08,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:08,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:09,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:06:09,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:09,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-31 22:06:09,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:09,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-31 22:06:09,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:09,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-31 22:06:09,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:10,017 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-31 22:06:10,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:10,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426680998] [2024-10-31 22:06:10,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426680998] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:06:10,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [224497917] [2024-10-31 22:06:10,018 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:06:10,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:06:10,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb18db-8edc-421f-9dd4-c8e71a92396d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:10,023 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb18db-8edc-421f-9dd4-c8e71a92396d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:06:10,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb18db-8edc-421f-9dd4-c8e71a92396d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-31 22:06:10,219 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 22:06:10,219 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:06:10,222 INFO L255 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-10-31 22:06:10,226 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:06:10,285 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 11 treesize of output 7 [2024-10-31 22:06:10,293 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-31 22:06:10,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-31 22:06:10,406 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2024-10-31 22:06:10,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-31 22:06:10,418 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 21 treesize of output 20 [2024-10-31 22:06:10,768 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 7 treesize of output 3 [2024-10-31 22:06:10,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-31 22:06:10,789 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-31 22:06:10,789 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 7 [2024-10-31 22:06:11,188 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-31 22:06:11,192 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:06:12,057 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 21 treesize of output 19 [2024-10-31 22:06:12,062 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 86 [2024-10-31 22:06:12,079 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 15 [2024-10-31 22:06:12,114 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-31 22:06:12,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [224497917] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:06:12,115 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:06:12,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 10, 10] total 36 [2024-10-31 22:06:12,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548624878] [2024-10-31 22:06:12,115 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:06:12,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-10-31 22:06:12,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:12,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-10-31 22:06:12,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=1140, Unknown=0, NotChecked=0, Total=1260 [2024-10-31 22:06:12,118 INFO L87 Difference]: Start difference. First operand 140 states and 176 transitions. Second operand has 36 states, 34 states have (on average 2.235294117647059) internal successors, (76), 29 states have internal predecessors, (76), 7 states have call successors, (13), 7 states have call predecessors, (13), 8 states have return successors, (12), 6 states have call predecessors, (12), 7 states have call successors, (12) [2024-10-31 22:06:14,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:06:14,759 INFO L93 Difference]: Finished difference Result 193 states and 235 transitions. [2024-10-31 22:06:14,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-10-31 22:06:14,760 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 34 states have (on average 2.235294117647059) internal successors, (76), 29 states have internal predecessors, (76), 7 states have call successors, (13), 7 states have call predecessors, (13), 8 states have return successors, (12), 6 states have call predecessors, (12), 7 states have call successors, (12) Word has length 43 [2024-10-31 22:06:14,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:06:14,762 INFO L225 Difference]: With dead ends: 193 [2024-10-31 22:06:14,762 INFO L226 Difference]: Without dead ends: 125 [2024-10-31 22:06:14,763 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 665 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=409, Invalid=3013, Unknown=0, NotChecked=0, Total=3422 [2024-10-31 22:06:14,767 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 220 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 1160 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 1206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-31 22:06:14,767 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 60 Invalid, 1206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1160 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-31 22:06:14,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-10-31 22:06:14,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 73. [2024-10-31 22:06:14,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 59 states have (on average 1.2033898305084745) internal successors, (71), 60 states have internal predecessors, (71), 7 states have call successors, (7), 6 states have call predecessors, (7), 6 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-10-31 22:06:14,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 85 transitions. [2024-10-31 22:06:14,803 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 85 transitions. Word has length 43 [2024-10-31 22:06:14,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:06:14,804 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 85 transitions. [2024-10-31 22:06:14,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 34 states have (on average 2.235294117647059) internal successors, (76), 29 states have internal predecessors, (76), 7 states have call successors, (13), 7 states have call predecessors, (13), 8 states have return successors, (12), 6 states have call predecessors, (12), 7 states have call successors, (12) [2024-10-31 22:06:14,804 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 85 transitions. [2024-10-31 22:06:14,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-10-31 22:06:14,805 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:06:14,805 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-10-31 22:06:14,831 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb18db-8edc-421f-9dd4-c8e71a92396d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-31 22:06:15,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb18db-8edc-421f-9dd4-c8e71a92396d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:06:15,008 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting gErr0ASSERT_VIOLATIONERROR_FUNCTION === [gErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:06:15,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:15,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1285134251, now seen corresponding path program 1 times [2024-10-31 22:06:15,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:15,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296496578] [2024-10-31 22:06:15,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:15,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:15,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:15,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:06:15,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:15,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-31 22:06:15,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:15,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-31 22:06:15,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:16,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-31 22:06:16,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:16,231 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 19 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:06:16,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:16,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296496578] [2024-10-31 22:06:16,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296496578] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:06:16,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120222411] [2024-10-31 22:06:16,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:16,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:06:16,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb18db-8edc-421f-9dd4-c8e71a92396d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:16,235 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb18db-8edc-421f-9dd4-c8e71a92396d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:06:16,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb18db-8edc-421f-9dd4-c8e71a92396d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process