./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_lazy.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_lazy.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b26873cfd586f35040b8fa56225beaa479db089ab89500d17d6395862bf9072f --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 19:11:24,720 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 19:11:24,809 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-20 19:11:24,813 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 19:11:24,816 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 19:11:24,849 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 19:11:24,850 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 19:11:24,850 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 19:11:24,851 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 19:11:24,852 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 19:11:24,853 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 19:11:24,853 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 19:11:24,854 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 19:11:24,856 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 19:11:24,857 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 19:11:24,857 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 19:11:24,857 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 19:11:24,858 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 19:11:24,858 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 19:11:24,858 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 19:11:24,862 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 19:11:24,863 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 19:11:24,863 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 19:11:24,863 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 19:11:24,863 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 19:11:24,864 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-20 19:11:24,864 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 19:11:24,864 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 19:11:24,864 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 19:11:24,865 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 19:11:24,865 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 19:11:24,865 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 19:11:24,865 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 19:11:24,866 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 19:11:24,866 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 19:11:24,869 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 19:11:24,869 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 19:11:24,869 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 19:11:24,870 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 19:11:24,878 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 19:11:24,878 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 19:11:24,879 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 19:11:24,879 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 19:11:24,880 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 19:11:24,880 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b26873cfd586f35040b8fa56225beaa479db089ab89500d17d6395862bf9072f [2024-11-20 19:11:25,102 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 19:11:25,126 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 19:11:25,129 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 19:11:25,130 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 19:11:25,130 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 19:11:25,131 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_lazy.i [2024-11-20 19:11:26,540 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 19:11:26,786 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 19:11:26,787 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_lazy.i [2024-11-20 19:11:26,808 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf20fbc4f/939223a5a799463e97064be516ab2851/FLAGcaea6c7f2 [2024-11-20 19:11:26,819 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf20fbc4f/939223a5a799463e97064be516ab2851 [2024-11-20 19:11:26,821 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 19:11:26,823 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 19:11:26,824 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 19:11:26,824 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 19:11:26,831 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 19:11:26,832 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:11:26" (1/1) ... [2024-11-20 19:11:26,834 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b2443e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:11:26, skipping insertion in model container [2024-11-20 19:11:26,834 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:11:26" (1/1) ... [2024-11-20 19:11:26,887 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 19:11:27,319 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 19:11:27,340 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 19:11:27,424 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 19:11:27,467 INFO L204 MainTranslator]: Completed translation [2024-11-20 19:11:27,468 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:11:27 WrapperNode [2024-11-20 19:11:27,468 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 19:11:27,469 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 19:11:27,470 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 19:11:27,470 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 19:11:27,482 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:11:27" (1/1) ... [2024-11-20 19:11:27,516 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:11:27" (1/1) ... [2024-11-20 19:11:27,568 INFO L138 Inliner]: procedures = 145, calls = 224, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 539 [2024-11-20 19:11:27,569 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 19:11:27,569 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 19:11:27,570 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 19:11:27,570 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 19:11:27,581 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:11:27" (1/1) ... [2024-11-20 19:11:27,582 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:11:27" (1/1) ... [2024-11-20 19:11:27,594 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:11:27" (1/1) ... [2024-11-20 19:11:27,638 INFO L175 MemorySlicer]: Split 119 memory accesses to 14 slices as follows [2, 9, 10, 10, 10, 25, 16, 9, 9, 3, 5, 8, 0, 3]. 21 percent of accesses are in the largest equivalence class. The 34 initializations are split as follows [2, 0, 4, 4, 4, 8, 8, 0, 2, 0, 0, 2, 0, 0]. The 32 writes are split as follows [0, 1, 2, 2, 2, 10, 4, 1, 3, 1, 2, 3, 0, 1]. [2024-11-20 19:11:27,639 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:11:27" (1/1) ... [2024-11-20 19:11:27,639 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:11:27" (1/1) ... [2024-11-20 19:11:27,670 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:11:27" (1/1) ... [2024-11-20 19:11:27,682 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:11:27" (1/1) ... [2024-11-20 19:11:27,696 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:11:27" (1/1) ... [2024-11-20 19:11:27,705 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:11:27" (1/1) ... [2024-11-20 19:11:27,725 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 19:11:27,726 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 19:11:27,726 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 19:11:27,726 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 19:11:27,727 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:11:27" (1/1) ... [2024-11-20 19:11:27,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 19:11:27,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 19:11:27,770 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 19:11:27,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 19:11:27,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 19:11:27,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 19:11:27,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-20 19:11:27,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-20 19:11:27,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-20 19:11:27,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-20 19:11:27,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-20 19:11:27,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-20 19:11:27,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-20 19:11:27,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-20 19:11:27,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-20 19:11:27,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-20 19:11:27,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-20 19:11:27,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-20 19:11:27,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 19:11:27,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 19:11:27,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-20 19:11:27,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-20 19:11:27,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-20 19:11:27,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-20 19:11:27,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-20 19:11:27,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-20 19:11:27,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-20 19:11:27,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-20 19:11:27,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-20 19:11:27,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-20 19:11:27,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-20 19:11:27,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-20 19:11:27,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 19:11:27,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-20 19:11:27,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-20 19:11:27,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-20 19:11:27,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-20 19:11:27,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-20 19:11:27,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-20 19:11:27,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-20 19:11:27,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-20 19:11:27,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-20 19:11:27,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-20 19:11:27,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-20 19:11:27,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-20 19:11:27,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-20 19:11:27,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-11-20 19:11:27,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-11-20 19:11:27,836 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_lock [2024-11-20 19:11:27,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_lock [2024-11-20 19:11:27,836 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2024-11-20 19:11:27,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2024-11-20 19:11:27,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-20 19:11:27,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-20 19:11:27,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-20 19:11:27,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-20 19:11:27,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-20 19:11:27,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-20 19:11:27,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-20 19:11:27,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-20 19:11:27,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-20 19:11:27,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-20 19:11:27,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-20 19:11:27,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-20 19:11:27,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-20 19:11:27,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-11-20 19:11:27,839 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2024-11-20 19:11:27,840 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2024-11-20 19:11:27,840 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2024-11-20 19:11:27,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2024-11-20 19:11:27,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-20 19:11:27,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-20 19:11:27,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-20 19:11:27,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-20 19:11:27,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-20 19:11:27,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-20 19:11:27,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-20 19:11:27,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-20 19:11:27,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-20 19:11:27,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-20 19:11:27,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-20 19:11:27,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-20 19:11:27,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-11-20 19:11:27,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-11-20 19:11:27,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-11-20 19:11:27,843 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2024-11-20 19:11:27,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2024-11-20 19:11:27,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 19:11:27,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 19:11:27,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-20 19:11:27,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-20 19:11:27,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-20 19:11:27,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-20 19:11:27,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-20 19:11:27,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-20 19:11:27,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-20 19:11:27,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-20 19:11:27,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-20 19:11:27,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-20 19:11:27,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-20 19:11:27,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-20 19:11:27,846 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_unlock [2024-11-20 19:11:27,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_unlock [2024-11-20 19:11:27,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 19:11:27,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 19:11:28,132 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 19:11:28,135 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 19:11:28,551 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##32: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);thread3_#res#1.base, thread3_#res#1.offset := 0, 0; [2024-11-20 19:11:28,552 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##31: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2024-11-20 19:11:28,552 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);thread3_#res#1.base, thread3_#res#1.offset := 0, 0; [2024-11-20 19:11:28,552 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##33: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2024-11-20 19:11:28,552 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint L714: SUMMARY for call __CS_cs(); srcloc: null [2024-11-20 19:11:28,570 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint L714-1: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);thread3_#res#1.base, thread3_#res#1.offset := 0, 0; [2024-11-20 19:11:28,571 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint L714-1: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2024-11-20 19:11:29,016 INFO L? ?]: Removed 100 outVars from TransFormulas that were not future-live. [2024-11-20 19:11:29,018 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 19:11:29,044 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 19:11:29,045 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-20 19:11:29,045 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:11:29 BoogieIcfgContainer [2024-11-20 19:11:29,045 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 19:11:29,048 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 19:11:29,049 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 19:11:29,053 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 19:11:29,053 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:11:26" (1/3) ... [2024-11-20 19:11:29,054 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a593b89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:11:29, skipping insertion in model container [2024-11-20 19:11:29,054 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:11:27" (2/3) ... [2024-11-20 19:11:29,055 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a593b89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:11:29, skipping insertion in model container [2024-11-20 19:11:29,056 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:11:29" (3/3) ... [2024-11-20 19:11:29,057 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_lazy.i [2024-11-20 19:11:29,072 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 19:11:29,073 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-11-20 19:11:29,151 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 19:11:29,157 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;@5e2626c9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 19:11:29,157 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-20 19:11:29,161 INFO L276 IsEmpty]: Start isEmpty. Operand has 192 states, 132 states have (on average 1.5606060606060606) internal successors, (206), 148 states have internal predecessors, (206), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-20 19:11:29,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-20 19:11:29,165 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:11:29,166 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-20 19:11:29,166 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-20 19:11:29,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:11:29,172 INFO L85 PathProgramCache]: Analyzing trace with hash 295904321, now seen corresponding path program 1 times [2024-11-20 19:11:29,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:11:29,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701372781] [2024-11-20 19:11:29,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:11:29,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:11:29,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:11:29,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 19:11:29,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:11:29,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701372781] [2024-11-20 19:11:29,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701372781] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 19:11:29,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 19:11:29,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 19:11:29,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231387979] [2024-11-20 19:11:29,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 19:11:29,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 19:11:29,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:11:29,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 19:11:29,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 19:11:29,540 INFO L87 Difference]: Start difference. First operand has 192 states, 132 states have (on average 1.5606060606060606) internal successors, (206), 148 states have internal predecessors, (206), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 19:11:29,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:11:29,646 INFO L93 Difference]: Finished difference Result 376 states and 592 transitions. [2024-11-20 19:11:29,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 19:11:29,651 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-20 19:11:29,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:11:29,661 INFO L225 Difference]: With dead ends: 376 [2024-11-20 19:11:29,662 INFO L226 Difference]: Without dead ends: 156 [2024-11-20 19:11:29,671 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 19:11:29,677 INFO L432 NwaCegarLoop]: 252 mSDtfsCounter, 1 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 19:11:29,680 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 497 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 19:11:29,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-11-20 19:11:29,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2024-11-20 19:11:29,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 105 states have (on average 1.457142857142857) internal successors, (153), 113 states have internal predecessors, (153), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-20 19:11:29,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 226 transitions. [2024-11-20 19:11:29,754 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 226 transitions. Word has length 5 [2024-11-20 19:11:29,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:11:29,754 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 226 transitions. [2024-11-20 19:11:29,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 19:11:29,755 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 226 transitions. [2024-11-20 19:11:29,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-20 19:11:29,758 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:11:29,759 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-20 19:11:29,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 19:11:29,759 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-20 19:11:29,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:11:29,761 INFO L85 PathProgramCache]: Analyzing trace with hash 2013066031, now seen corresponding path program 1 times [2024-11-20 19:11:29,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:11:29,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336386915] [2024-11-20 19:11:29,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:11:29,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:11:29,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:11:29,935 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 19:11:29,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:11:29,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336386915] [2024-11-20 19:11:29,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336386915] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 19:11:29,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1435519319] [2024-11-20 19:11:29,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:11:29,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:11:29,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 19:11:29,940 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 19:11:29,945 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 19:11:30,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:11:30,163 INFO L255 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 19:11:30,167 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 19:11:30,202 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 19:11:30,202 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 19:11:30,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1435519319] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 19:11:30,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 19:11:30,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-20 19:11:30,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483489269] [2024-11-20 19:11:30,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 19:11:30,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 19:11:30,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:11:30,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 19:11:30,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 19:11:30,206 INFO L87 Difference]: Start difference. First operand 156 states and 226 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 19:11:30,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:11:30,277 INFO L93 Difference]: Finished difference Result 156 states and 226 transitions. [2024-11-20 19:11:30,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 19:11:30,279 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-20 19:11:30,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:11:30,282 INFO L225 Difference]: With dead ends: 156 [2024-11-20 19:11:30,284 INFO L226 Difference]: Without dead ends: 155 [2024-11-20 19:11:30,284 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 19:11:30,285 INFO L432 NwaCegarLoop]: 217 mSDtfsCounter, 1 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 19:11:30,286 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 645 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 19:11:30,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-11-20 19:11:30,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2024-11-20 19:11:30,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 105 states have (on average 1.4476190476190476) internal successors, (152), 112 states have internal predecessors, (152), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-20 19:11:30,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 225 transitions. [2024-11-20 19:11:30,304 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 225 transitions. Word has length 8 [2024-11-20 19:11:30,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:11:30,304 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 225 transitions. [2024-11-20 19:11:30,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 19:11:30,304 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 225 transitions. [2024-11-20 19:11:30,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-20 19:11:30,305 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:11:30,305 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 19:11:30,315 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-20 19:11:30,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:11:30,506 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-20 19:11:30,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:11:30,507 INFO L85 PathProgramCache]: Analyzing trace with hash -2019463875, now seen corresponding path program 1 times [2024-11-20 19:11:30,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:11:30,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780698457] [2024-11-20 19:11:30,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:11:30,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:11:30,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:11:30,690 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 19:11:30,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:11:30,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780698457] [2024-11-20 19:11:30,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780698457] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 19:11:30,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [397306225] [2024-11-20 19:11:30,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:11:30,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:11:30,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 19:11:30,694 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 19:11:30,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 19:11:30,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:11:30,895 INFO L255 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-20 19:11:30,896 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 19:11:30,919 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 19:11:30,920 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 19:11:30,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [397306225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 19:11:30,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 19:11:30,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-11-20 19:11:30,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130335256] [2024-11-20 19:11:30,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 19:11:30,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 19:11:30,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:11:30,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 19:11:30,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 19:11:30,922 INFO L87 Difference]: Start difference. First operand 155 states and 225 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 19:11:31,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:11:31,020 INFO L93 Difference]: Finished difference Result 155 states and 225 transitions. [2024-11-20 19:11:31,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 19:11:31,021 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-20 19:11:31,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:11:31,024 INFO L225 Difference]: With dead ends: 155 [2024-11-20 19:11:31,024 INFO L226 Difference]: Without dead ends: 154 [2024-11-20 19:11:31,025 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 19:11:31,026 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 2 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 19:11:31,026 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 422 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 19:11:31,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-11-20 19:11:31,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2024-11-20 19:11:31,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 105 states have (on average 1.438095238095238) internal successors, (151), 111 states have internal predecessors, (151), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-20 19:11:31,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 224 transitions. [2024-11-20 19:11:31,044 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 224 transitions. Word has length 9 [2024-11-20 19:11:31,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:11:31,044 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 224 transitions. [2024-11-20 19:11:31,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 19:11:31,045 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 224 transitions. [2024-11-20 19:11:31,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-20 19:11:31,045 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:11:31,046 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2024-11-20 19:11:31,055 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-20 19:11:31,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-20 19:11:31,247 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-20 19:11:31,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:11:31,247 INFO L85 PathProgramCache]: Analyzing trace with hash -2019462146, now seen corresponding path program 1 times [2024-11-20 19:11:31,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:11:31,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050196005] [2024-11-20 19:11:31,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:11:31,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:11:31,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:11:31,301 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 19:11:31,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:11:31,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050196005] [2024-11-20 19:11:31,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050196005] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 19:11:31,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 19:11:31,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 19:11:31,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659760632] [2024-11-20 19:11:31,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 19:11:31,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 19:11:31,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:11:31,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 19:11:31,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 19:11:31,303 INFO L87 Difference]: Start difference. First operand 154 states and 224 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 19:11:31,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:11:31,326 INFO L93 Difference]: Finished difference Result 154 states and 224 transitions. [2024-11-20 19:11:31,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 19:11:31,327 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-20 19:11:31,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:11:31,328 INFO L225 Difference]: With dead ends: 154 [2024-11-20 19:11:31,328 INFO L226 Difference]: Without dead ends: 153 [2024-11-20 19:11:31,329 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 19:11:31,329 INFO L432 NwaCegarLoop]: 217 mSDtfsCounter, 0 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 19:11:31,330 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 430 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 19:11:31,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-11-20 19:11:31,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 151. [2024-11-20 19:11:31,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 103 states have (on average 1.4368932038834952) internal successors, (148), 108 states have internal predecessors, (148), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-20 19:11:31,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 221 transitions. [2024-11-20 19:11:31,344 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 221 transitions. Word has length 9 [2024-11-20 19:11:31,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:11:31,344 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 221 transitions. [2024-11-20 19:11:31,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 19:11:31,345 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 221 transitions. [2024-11-20 19:11:31,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-20 19:11:31,345 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:11:31,346 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 19:11:31,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 19:11:31,346 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-20 19:11:31,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:11:31,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1821129657, now seen corresponding path program 1 times [2024-11-20 19:11:31,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:11:31,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035611300] [2024-11-20 19:11:31,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:11:31,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:11:31,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:11:31,412 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 19:11:31,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:11:31,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035611300] [2024-11-20 19:11:31,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035611300] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 19:11:31,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1658134124] [2024-11-20 19:11:31,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:11:31,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:11:31,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 19:11:31,416 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 19:11:31,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-20 19:11:31,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:11:31,597 INFO L255 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-20 19:11:31,599 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 19:11:31,620 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 19:11:31,621 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 19:11:31,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1658134124] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 19:11:31,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 19:11:31,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-11-20 19:11:31,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713491080] [2024-11-20 19:11:31,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 19:11:31,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 19:11:31,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:11:31,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 19:11:31,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 19:11:31,624 INFO L87 Difference]: Start difference. First operand 151 states and 221 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 19:11:31,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:11:31,717 INFO L93 Difference]: Finished difference Result 300 states and 440 transitions. [2024-11-20 19:11:31,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 19:11:31,720 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-20 19:11:31,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:11:31,722 INFO L225 Difference]: With dead ends: 300 [2024-11-20 19:11:31,722 INFO L226 Difference]: Without dead ends: 159 [2024-11-20 19:11:31,723 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 19:11:31,724 INFO L432 NwaCegarLoop]: 215 mSDtfsCounter, 0 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 19:11:31,724 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 426 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 19:11:31,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-11-20 19:11:31,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2024-11-20 19:11:31,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 111 states have (on average 1.4144144144144144) internal successors, (157), 116 states have internal predecessors, (157), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-20 19:11:31,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 230 transitions. [2024-11-20 19:11:31,744 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 230 transitions. Word has length 10 [2024-11-20 19:11:31,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:11:31,745 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 230 transitions. [2024-11-20 19:11:31,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 19:11:31,745 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 230 transitions. [2024-11-20 19:11:31,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-20 19:11:31,748 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:11:31,748 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-11-20 19:11:31,757 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-20 19:11:31,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:11:31,953 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-20 19:11:31,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:11:31,954 INFO L85 PathProgramCache]: Analyzing trace with hash -204772944, now seen corresponding path program 1 times [2024-11-20 19:11:31,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:11:31,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070512237] [2024-11-20 19:11:31,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:11:31,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:11:31,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:11:32,054 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-20 19:11:32,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:11:32,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070512237] [2024-11-20 19:11:32,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070512237] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 19:11:32,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1935122589] [2024-11-20 19:11:32,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:11:32,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:11:32,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 19:11:32,061 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 19:11:32,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-20 19:11:32,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:11:32,265 INFO L255 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-20 19:11:32,267 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 19:11:32,293 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-20 19:11:32,294 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 19:11:32,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1935122589] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 19:11:32,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 19:11:32,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-11-20 19:11:32,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585650709] [2024-11-20 19:11:32,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 19:11:32,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 19:11:32,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:11:32,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 19:11:32,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 19:11:32,296 INFO L87 Difference]: Start difference. First operand 159 states and 230 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 19:11:32,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:11:32,401 INFO L93 Difference]: Finished difference Result 159 states and 230 transitions. [2024-11-20 19:11:32,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 19:11:32,413 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2024-11-20 19:11:32,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:11:32,415 INFO L225 Difference]: With dead ends: 159 [2024-11-20 19:11:32,415 INFO L226 Difference]: Without dead ends: 158 [2024-11-20 19:11:32,415 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 19:11:32,416 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 0 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 19:11:32,416 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 422 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 19:11:32,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-11-20 19:11:32,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 151. [2024-11-20 19:11:32,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 104 states have (on average 1.4230769230769231) internal successors, (148), 108 states have internal predecessors, (148), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-20 19:11:32,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 221 transitions. [2024-11-20 19:11:32,434 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 221 transitions. Word has length 18 [2024-11-20 19:11:32,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:11:32,434 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 221 transitions. [2024-11-20 19:11:32,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 19:11:32,435 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 221 transitions. [2024-11-20 19:11:32,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-20 19:11:32,441 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:11:32,441 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 19:11:32,451 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-20 19:11:32,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:11:32,642 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ##fun~$Pointer$~TO~$Pointer$Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-20 19:11:32,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:11:32,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1170227925, now seen corresponding path program 1 times [2024-11-20 19:11:32,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:11:32,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897978541] [2024-11-20 19:11:32,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:11:32,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:11:32,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:11:32,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-20 19:11:32,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:11:32,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-20 19:11:32,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:11:32,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-20 19:11:32,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:11:32,859 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-20 19:11:32,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:11:32,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897978541] [2024-11-20 19:11:32,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897978541] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 19:11:32,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609607465] [2024-11-20 19:11:32,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:11:32,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:11:32,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 19:11:32,863 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 19:11:32,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-20 19:11:33,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:11:33,137 INFO L255 TraceCheckSpWp]: Trace formula consists of 641 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 19:11:33,139 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 19:11:33,160 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-20 19:11:33,160 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 19:11:33,204 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-20 19:11:33,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609607465] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 19:11:33,205 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 19:11:33,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 9 [2024-11-20 19:11:33,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540970965] [2024-11-20 19:11:33,205 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 19:11:33,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 19:11:33,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:11:33,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 19:11:33,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-20 19:11:33,209 INFO L87 Difference]: Start difference. First operand 151 states and 221 transitions. Second operand has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-20 19:11:34,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:11:34,559 INFO L93 Difference]: Finished difference Result 314 states and 463 transitions. [2024-11-20 19:11:34,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 19:11:34,559 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 51 [2024-11-20 19:11:34,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:11:34,563 INFO L225 Difference]: With dead ends: 314 [2024-11-20 19:11:34,563 INFO L226 Difference]: Without dead ends: 166 [2024-11-20 19:11:34,564 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-20 19:11:34,565 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 71 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-20 19:11:34,565 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 513 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-20 19:11:34,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-11-20 19:11:34,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 160. [2024-11-20 19:11:34,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 113 states have (on average 1.3893805309734513) internal successors, (157), 117 states have internal predecessors, (157), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-20 19:11:34,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 230 transitions. [2024-11-20 19:11:34,579 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 230 transitions. Word has length 51 [2024-11-20 19:11:34,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:11:34,580 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 230 transitions. [2024-11-20 19:11:34,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-20 19:11:34,580 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 230 transitions. [2024-11-20 19:11:34,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-20 19:11:34,583 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:11:34,584 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 19:11:34,596 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-20 19:11:34,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:11:34,791 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ##fun~$Pointer$~TO~$Pointer$Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-20 19:11:34,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:11:34,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1553781337, now seen corresponding path program 2 times [2024-11-20 19:11:34,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:11:34,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310586597] [2024-11-20 19:11:34,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:11:34,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:11:34,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:11:34,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:11:34,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:11:35,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 19:11:35,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:11:35,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 19:11:35,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:11:35,019 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-20 19:11:35,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:11:35,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310586597] [2024-11-20 19:11:35,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310586597] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 19:11:35,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [52283368] [2024-11-20 19:11:35,020 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 19:11:35,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:11:35,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 19:11:35,023 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 19:11:35,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-20 19:11:35,350 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-20 19:11:35,351 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 19:11:35,353 INFO L255 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-20 19:11:35,356 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 19:11:35,429 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-20 19:11:35,494 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 19:11:35,494 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 7 [2024-11-20 19:11:35,524 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-20 19:11:35,525 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 19:11:35,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [52283368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 19:11:35,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 19:11:35,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2024-11-20 19:11:35,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026444694] [2024-11-20 19:11:35,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 19:11:35,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 19:11:35,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:11:35,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 19:11:35,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-20 19:11:35,527 INFO L87 Difference]: Start difference. First operand 160 states and 230 transitions. Second operand has 6 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 19:11:39,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 19:11:39,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:11:39,930 INFO L93 Difference]: Finished difference Result 422 states and 622 transitions. [2024-11-20 19:11:39,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 19:11:39,931 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 60 [2024-11-20 19:11:39,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:11:39,933 INFO L225 Difference]: With dead ends: 422 [2024-11-20 19:11:39,934 INFO L226 Difference]: Without dead ends: 311 [2024-11-20 19:11:39,934 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-20 19:11:39,935 INFO L432 NwaCegarLoop]: 283 mSDtfsCounter, 354 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 88 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 1034 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-20 19:11:39,935 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 1034 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 61 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2024-11-20 19:11:39,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2024-11-20 19:11:39,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 305. [2024-11-20 19:11:39,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 213 states have (on average 1.403755868544601) internal successors, (299), 216 states have internal predecessors, (299), 76 states have call successors, (76), 13 states have call predecessors, (76), 12 states have return successors, (80), 75 states have call predecessors, (80), 74 states have call successors, (80) [2024-11-20 19:11:39,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 455 transitions. [2024-11-20 19:11:39,965 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 455 transitions. Word has length 60 [2024-11-20 19:11:39,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:11:39,967 INFO L471 AbstractCegarLoop]: Abstraction has 305 states and 455 transitions. [2024-11-20 19:11:39,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 19:11:39,967 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 455 transitions. [2024-11-20 19:11:39,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-20 19:11:39,968 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:11:39,969 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 19:11:39,989 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-20 19:11:40,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:11:40,171 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ##fun~$Pointer$~TO~$Pointer$Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-20 19:11:40,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:11:40,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1238860846, now seen corresponding path program 1 times [2024-11-20 19:11:40,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:11:40,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967793446] [2024-11-20 19:11:40,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:11:40,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:11:40,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:11:40,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-20 19:11:40,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:11:40,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 19:11:40,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:11:40,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 19:11:40,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:11:40,362 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-20 19:11:40,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:11:40,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967793446] [2024-11-20 19:11:40,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967793446] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 19:11:40,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1251771992] [2024-11-20 19:11:40,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:11:40,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:11:40,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 19:11:40,365 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 19:11:40,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-20 19:11:40,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:11:40,683 INFO L255 TraceCheckSpWp]: Trace formula consists of 725 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 19:11:40,686 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 19:11:40,729 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-20 19:11:40,732 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 19:11:40,780 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-20 19:11:40,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1251771992] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 19:11:40,780 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 19:11:40,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 7 [2024-11-20 19:11:40,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818897099] [2024-11-20 19:11:40,781 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 19:11:40,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 19:11:40,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:11:40,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 19:11:40,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-20 19:11:40,782 INFO L87 Difference]: Start difference. First operand 305 states and 455 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-20 19:11:44,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 19:11:45,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:11:45,348 INFO L93 Difference]: Finished difference Result 619 states and 932 transitions. [2024-11-20 19:11:45,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 19:11:45,348 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 58 [2024-11-20 19:11:45,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:11:45,351 INFO L225 Difference]: With dead ends: 619 [2024-11-20 19:11:45,351 INFO L226 Difference]: Without dead ends: 334 [2024-11-20 19:11:45,353 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 118 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-20 19:11:45,355 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 74 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 75 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-20 19:11:45,356 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 679 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 325 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2024-11-20 19:11:45,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2024-11-20 19:11:45,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 322. [2024-11-20 19:11:45,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 230 states have (on average 1.3782608695652174) internal successors, (317), 233 states have internal predecessors, (317), 76 states have call successors, (76), 13 states have call predecessors, (76), 12 states have return successors, (80), 75 states have call predecessors, (80), 74 states have call successors, (80) [2024-11-20 19:11:45,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 473 transitions. [2024-11-20 19:11:45,384 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 473 transitions. Word has length 58 [2024-11-20 19:11:45,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:11:45,384 INFO L471 AbstractCegarLoop]: Abstraction has 322 states and 473 transitions. [2024-11-20 19:11:45,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-20 19:11:45,385 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 473 transitions. [2024-11-20 19:11:45,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-20 19:11:45,387 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:11:45,387 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 19:11:45,398 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-20 19:11:45,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:11:45,588 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ##fun~$Pointer$~TO~$Pointer$Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-20 19:11:45,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:11:45,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1148818412, now seen corresponding path program 1 times [2024-11-20 19:11:45,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:11:45,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064213597] [2024-11-20 19:11:45,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:11:45,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:11:45,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:11:46,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-20 19:11:46,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:11:46,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-20 19:11:46,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:11:46,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-20 19:11:46,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:11:46,166 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2024-11-20 19:11:46,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:11:46,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064213597] [2024-11-20 19:11:46,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064213597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 19:11:46,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 19:11:46,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 19:11:46,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196296771] [2024-11-20 19:11:46,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 19:11:46,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 19:11:46,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:11:46,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 19:11:46,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 19:11:46,169 INFO L87 Difference]: Start difference. First operand 322 states and 473 transitions. Second operand has 7 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 19:11:48,032 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 19:11:48,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:11:48,798 INFO L93 Difference]: Finished difference Result 634 states and 947 transitions. [2024-11-20 19:11:48,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 19:11:48,798 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 73 [2024-11-20 19:11:48,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:11:48,803 INFO L225 Difference]: With dead ends: 634 [2024-11-20 19:11:48,803 INFO L226 Difference]: Without dead ends: 362 [2024-11-20 19:11:48,805 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2024-11-20 19:11:48,805 INFO L432 NwaCegarLoop]: 233 mSDtfsCounter, 343 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 1004 SdHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-20 19:11:48,807 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 1004 Invalid, 686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-20 19:11:48,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2024-11-20 19:11:48,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 344. [2024-11-20 19:11:48,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 245 states have (on average 1.379591836734694) internal successors, (338), 248 states have internal predecessors, (338), 82 states have call successors, (82), 14 states have call predecessors, (82), 13 states have return successors, (85), 81 states have call predecessors, (85), 80 states have call successors, (85) [2024-11-20 19:11:48,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 505 transitions. [2024-11-20 19:11:48,834 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 505 transitions. Word has length 73 [2024-11-20 19:11:48,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:11:48,836 INFO L471 AbstractCegarLoop]: Abstraction has 344 states and 505 transitions. [2024-11-20 19:11:48,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 19:11:48,836 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 505 transitions. [2024-11-20 19:11:48,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-20 19:11:48,837 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:11:48,837 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 19:11:48,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 19:11:48,839 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ##fun~$Pointer$~TO~$Pointer$Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-20 19:11:48,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:11:48,839 INFO L85 PathProgramCache]: Analyzing trace with hash -236048063, now seen corresponding path program 1 times [2024-11-20 19:11:48,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:11:48,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535795307] [2024-11-20 19:11:48,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:11:48,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:11:48,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:11:49,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-20 19:11:49,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:11:49,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 19:11:49,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:11:49,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 19:11:49,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:11:49,404 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2024-11-20 19:11:49,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:11:49,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535795307] [2024-11-20 19:11:49,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535795307] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 19:11:49,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 19:11:49,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 19:11:49,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158666116] [2024-11-20 19:11:49,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 19:11:49,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 19:11:49,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:11:49,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 19:11:49,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 19:11:49,407 INFO L87 Difference]: Start difference. First operand 344 states and 505 transitions. Second operand has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 19:11:53,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 19:11:54,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:11:54,369 INFO L93 Difference]: Finished difference Result 681 states and 1019 transitions. [2024-11-20 19:11:54,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-20 19:11:54,369 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 71 [2024-11-20 19:11:54,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:11:54,373 INFO L225 Difference]: With dead ends: 681 [2024-11-20 19:11:54,373 INFO L226 Difference]: Without dead ends: 387 [2024-11-20 19:11:54,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2024-11-20 19:11:54,375 INFO L432 NwaCegarLoop]: 223 mSDtfsCounter, 370 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 168 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 928 SdHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-20 19:11:54,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 928 Invalid, 755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 586 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2024-11-20 19:11:54,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2024-11-20 19:11:54,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 369. [2024-11-20 19:11:54,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 262 states have (on average 1.381679389312977) internal successors, (362), 266 states have internal predecessors, (362), 88 states have call successors, (88), 15 states have call predecessors, (88), 15 states have return successors, (94), 87 states have call predecessors, (94), 86 states have call successors, (94) [2024-11-20 19:11:54,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 544 transitions. [2024-11-20 19:11:54,400 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 544 transitions. Word has length 71 [2024-11-20 19:11:54,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:11:54,400 INFO L471 AbstractCegarLoop]: Abstraction has 369 states and 544 transitions. [2024-11-20 19:11:54,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 19:11:54,401 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 544 transitions. [2024-11-20 19:11:54,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-20 19:11:54,402 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:11:54,402 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 19:11:54,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 19:11:54,402 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ##fun~$Pointer$~TO~$Pointer$Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-20 19:11:54,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:11:54,403 INFO L85 PathProgramCache]: Analyzing trace with hash -848367843, now seen corresponding path program 1 times [2024-11-20 19:11:54,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:11:54,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609889632] [2024-11-20 19:11:54,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:11:54,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:11:54,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:11:54,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-20 19:11:54,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:11:54,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 19:11:54,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:11:54,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 19:11:54,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:11:54,929 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2024-11-20 19:11:54,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:11:54,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609889632] [2024-11-20 19:11:54,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609889632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 19:11:54,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 19:11:54,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 19:11:54,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527171096] [2024-11-20 19:11:54,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 19:11:54,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 19:11:54,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:11:54,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 19:11:54,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 19:11:54,933 INFO L87 Difference]: Start difference. First operand 369 states and 544 transitions. Second operand has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 19:11:56,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:11:56,406 INFO L93 Difference]: Finished difference Result 685 states and 1020 transitions. [2024-11-20 19:11:56,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-20 19:11:56,407 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 71 [2024-11-20 19:11:56,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:11:56,410 INFO L225 Difference]: With dead ends: 685 [2024-11-20 19:11:56,410 INFO L226 Difference]: Without dead ends: 368 [2024-11-20 19:11:56,411 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2024-11-20 19:11:56,412 INFO L432 NwaCegarLoop]: 209 mSDtfsCounter, 341 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 775 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-20 19:11:56,412 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 775 Invalid, 807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-20 19:11:56,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2024-11-20 19:11:56,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 352. [2024-11-20 19:11:56,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 251 states have (on average 1.3705179282868525) internal successors, (344), 255 states have internal predecessors, (344), 82 states have call successors, (82), 15 states have call predecessors, (82), 15 states have return successors, (88), 81 states have call predecessors, (88), 80 states have call successors, (88) [2024-11-20 19:11:56,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 514 transitions. [2024-11-20 19:11:56,444 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 514 transitions. Word has length 71 [2024-11-20 19:11:56,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:11:56,445 INFO L471 AbstractCegarLoop]: Abstraction has 352 states and 514 transitions. [2024-11-20 19:11:56,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 19:11:56,445 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 514 transitions. [2024-11-20 19:11:56,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-20 19:11:56,446 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:11:56,446 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 19:11:56,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 19:11:56,447 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ##fun~$Pointer$~TO~$Pointer$Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-20 19:11:56,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:11:56,448 INFO L85 PathProgramCache]: Analyzing trace with hash 536498632, now seen corresponding path program 1 times [2024-11-20 19:11:56,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:11:56,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852252166] [2024-11-20 19:11:56,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:11:56,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:11:56,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:11:56,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-20 19:11:56,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:11:56,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-20 19:11:56,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:11:56,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-20 19:11:56,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:11:56,806 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2024-11-20 19:11:56,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:11:56,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852252166] [2024-11-20 19:11:56,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852252166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 19:11:56,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 19:11:56,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 19:11:56,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551221428] [2024-11-20 19:11:56,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 19:11:56,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 19:11:56,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:11:56,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 19:11:56,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 19:11:56,809 INFO L87 Difference]: Start difference. First operand 352 states and 514 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 19:11:57,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:11:57,928 INFO L93 Difference]: Finished difference Result 639 states and 943 transitions. [2024-11-20 19:11:57,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 19:11:57,929 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 73 [2024-11-20 19:11:57,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:11:57,931 INFO L225 Difference]: With dead ends: 639 [2024-11-20 19:11:57,931 INFO L226 Difference]: Without dead ends: 343 [2024-11-20 19:11:57,934 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-20 19:11:57,935 INFO L432 NwaCegarLoop]: 228 mSDtfsCounter, 306 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-20 19:11:57,935 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 781 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-20 19:11:57,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2024-11-20 19:11:57,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 327. [2024-11-20 19:11:57,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 234 states have (on average 1.3632478632478633) internal successors, (319), 238 states have internal predecessors, (319), 75 states have call successors, (75), 14 states have call predecessors, (75), 14 states have return successors, (81), 74 states have call predecessors, (81), 73 states have call successors, (81) [2024-11-20 19:11:57,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 475 transitions. [2024-11-20 19:11:57,961 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 475 transitions. Word has length 73 [2024-11-20 19:11:57,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:11:57,962 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 475 transitions. [2024-11-20 19:11:57,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 19:11:57,963 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 475 transitions. [2024-11-20 19:11:57,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-20 19:11:57,963 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:11:57,964 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 19:11:57,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-20 19:11:57,966 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ##fun~$Pointer$~TO~$Pointer$Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-20 19:11:57,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:11:57,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1403489993, now seen corresponding path program 2 times [2024-11-20 19:11:57,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:11:57,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156048043] [2024-11-20 19:11:57,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:11:57,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:11:58,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:11:58,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 19:11:58,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:11:58,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-20 19:11:58,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:11:58,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-20 19:11:58,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:11:58,404 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2024-11-20 19:11:58,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:11:58,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156048043] [2024-11-20 19:11:58,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156048043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 19:11:58,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 19:11:58,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 19:11:58,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330546784] [2024-11-20 19:11:58,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 19:11:58,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 19:11:58,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:11:58,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 19:11:58,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 19:11:58,408 INFO L87 Difference]: Start difference. First operand 327 states and 475 transitions. Second operand has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 19:11:59,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:11:59,580 INFO L93 Difference]: Finished difference Result 560 states and 803 transitions. [2024-11-20 19:11:59,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 19:11:59,580 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 75 [2024-11-20 19:11:59,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:11:59,583 INFO L225 Difference]: With dead ends: 560 [2024-11-20 19:11:59,583 INFO L226 Difference]: Without dead ends: 311 [2024-11-20 19:11:59,585 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2024-11-20 19:11:59,585 INFO L432 NwaCegarLoop]: 225 mSDtfsCounter, 273 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 983 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-20 19:11:59,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 983 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-20 19:11:59,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2024-11-20 19:11:59,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 295. [2024-11-20 19:11:59,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 215 states have (on average 1.3255813953488371) internal successors, (285), 219 states have internal predecessors, (285), 62 states have call successors, (62), 14 states have call predecessors, (62), 14 states have return successors, (66), 61 states have call predecessors, (66), 60 states have call successors, (66) [2024-11-20 19:11:59,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 413 transitions. [2024-11-20 19:11:59,608 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 413 transitions. Word has length 75 [2024-11-20 19:11:59,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:11:59,609 INFO L471 AbstractCegarLoop]: Abstraction has 295 states and 413 transitions. [2024-11-20 19:11:59,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 19:11:59,609 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 413 transitions. [2024-11-20 19:11:59,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-20 19:11:59,610 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:11:59,610 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 19:11:59,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-20 19:11:59,610 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ##fun~$Pointer$~TO~$Pointer$Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-20 19:11:59,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:11:59,611 INFO L85 PathProgramCache]: Analyzing trace with hash -2015809773, now seen corresponding path program 1 times [2024-11-20 19:11:59,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:11:59,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526315104] [2024-11-20 19:11:59,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:11:59,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:11:59,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:11:59,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 19:11:59,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:11:59,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-20 19:11:59,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:11:59,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-20 19:11:59,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:11:59,978 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2024-11-20 19:11:59,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:11:59,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526315104] [2024-11-20 19:11:59,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526315104] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 19:11:59,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 19:11:59,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 19:11:59,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058994283] [2024-11-20 19:11:59,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 19:11:59,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 19:11:59,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:11:59,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 19:11:59,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 19:11:59,980 INFO L87 Difference]: Start difference. First operand 295 states and 413 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 19:12:01,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:12:01,643 INFO L93 Difference]: Finished difference Result 339 states and 464 transitions. [2024-11-20 19:12:01,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 19:12:01,643 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 75 [2024-11-20 19:12:01,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:12:01,645 INFO L225 Difference]: With dead ends: 339 [2024-11-20 19:12:01,646 INFO L226 Difference]: Without dead ends: 276 [2024-11-20 19:12:01,646 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-20 19:12:01,646 INFO L432 NwaCegarLoop]: 230 mSDtfsCounter, 208 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 786 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-20 19:12:01,647 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 786 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-20 19:12:01,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2024-11-20 19:12:01,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 264. [2024-11-20 19:12:01,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 193 states have (on average 1.3160621761658031) internal successors, (254), 197 states have internal predecessors, (254), 55 states have call successors, (55), 12 states have call predecessors, (55), 12 states have return successors, (59), 54 states have call predecessors, (59), 53 states have call successors, (59) [2024-11-20 19:12:01,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 368 transitions. [2024-11-20 19:12:01,670 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 368 transitions. Word has length 75 [2024-11-20 19:12:01,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:12:01,670 INFO L471 AbstractCegarLoop]: Abstraction has 264 states and 368 transitions. [2024-11-20 19:12:01,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 19:12:01,670 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 368 transitions. [2024-11-20 19:12:01,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-20 19:12:01,671 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:12:01,671 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 19:12:01,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-20 19:12:01,671 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ##fun~$Pointer$~TO~$Pointer$Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-20 19:12:01,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:12:01,674 INFO L85 PathProgramCache]: Analyzing trace with hash -32022786, now seen corresponding path program 1 times [2024-11-20 19:12:01,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:12:01,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157185700] [2024-11-20 19:12:01,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:12:01,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:12:01,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:12:02,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 19:12:02,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:12:02,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 19:12:02,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:12:02,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 19:12:02,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:12:02,045 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2024-11-20 19:12:02,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:12:02,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157185700] [2024-11-20 19:12:02,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157185700] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 19:12:02,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 19:12:02,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 19:12:02,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253723009] [2024-11-20 19:12:02,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 19:12:02,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 19:12:02,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:12:02,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 19:12:02,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 19:12:02,048 INFO L87 Difference]: Start difference. First operand 264 states and 368 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 19:12:03,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:12:03,548 INFO L93 Difference]: Finished difference Result 282 states and 391 transitions. [2024-11-20 19:12:03,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 19:12:03,549 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 77 [2024-11-20 19:12:03,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:12:03,551 INFO L225 Difference]: With dead ends: 282 [2024-11-20 19:12:03,551 INFO L226 Difference]: Without dead ends: 214 [2024-11-20 19:12:03,552 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-20 19:12:03,552 INFO L432 NwaCegarLoop]: 232 mSDtfsCounter, 168 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-20 19:12:03,552 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 792 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-20 19:12:03,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2024-11-20 19:12:03,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 208. [2024-11-20 19:12:03,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 151 states have (on average 1.2980132450331126) internal successors, (196), 156 states have internal predecessors, (196), 44 states have call successors, (44), 9 states have call predecessors, (44), 9 states have return successors, (47), 42 states have call predecessors, (47), 43 states have call successors, (47) [2024-11-20 19:12:03,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 287 transitions. [2024-11-20 19:12:03,569 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 287 transitions. Word has length 77 [2024-11-20 19:12:03,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:12:03,569 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 287 transitions. [2024-11-20 19:12:03,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 19:12:03,570 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 287 transitions. [2024-11-20 19:12:03,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-20 19:12:03,571 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:12:03,571 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 19:12:03,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-20 19:12:03,572 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ##fun~$Pointer$~TO~$Pointer$Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-20 19:12:03,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:12:03,572 INFO L85 PathProgramCache]: Analyzing trace with hash -696641972, now seen corresponding path program 1 times [2024-11-20 19:12:03,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:12:03,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907314218] [2024-11-20 19:12:03,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:12:03,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:12:03,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:12:04,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 19:12:04,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:12:05,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 19:12:05,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:12:05,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-20 19:12:05,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:12:05,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 19:12:05,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:12:05,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 19:12:05,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:12:05,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-20 19:12:05,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:12:05,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 19:12:05,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:12:05,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-20 19:12:05,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:12:05,282 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2024-11-20 19:12:05,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:12:05,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907314218] [2024-11-20 19:12:05,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907314218] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 19:12:05,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026172757] [2024-11-20 19:12:05,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:12:05,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:12:05,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 19:12:05,285 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 19:12:05,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-20 19:12:05,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:12:05,824 INFO L255 TraceCheckSpWp]: Trace formula consists of 1268 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-20 19:12:05,831 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 19:12:05,918 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-20 19:12:05,987 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 19:12:05,988 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 7 [2024-11-20 19:12:06,083 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 27 treesize of output 1 [2024-11-20 19:12:06,134 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 19:12:06,134 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 23 [2024-11-20 19:12:06,191 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 19:12:06,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 7 [2024-11-20 19:12:06,214 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 48 proven. 2 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2024-11-20 19:12:06,215 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 19:12:06,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2026172757] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 19:12:06,431 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-20 19:12:06,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10] total 19 [2024-11-20 19:12:06,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015902665] [2024-11-20 19:12:06,432 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-20 19:12:06,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-20 19:12:06,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:12:06,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-20 19:12:06,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=425, Unknown=0, NotChecked=0, Total=506 [2024-11-20 19:12:06,433 INFO L87 Difference]: Start difference. First operand 208 states and 287 transitions. Second operand has 19 states, 16 states have (on average 4.875) internal successors, (78), 15 states have internal predecessors, (78), 8 states have call successors, (18), 8 states have call predecessors, (18), 5 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-20 19:12:12,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 19:12:16,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:12:16,106 INFO L93 Difference]: Finished difference Result 623 states and 935 transitions. [2024-11-20 19:12:16,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-20 19:12:16,106 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 4.875) internal successors, (78), 15 states have internal predecessors, (78), 8 states have call successors, (18), 8 states have call predecessors, (18), 5 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 121 [2024-11-20 19:12:16,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:12:16,110 INFO L225 Difference]: With dead ends: 623 [2024-11-20 19:12:16,110 INFO L226 Difference]: Without dead ends: 463 [2024-11-20 19:12:16,112 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 356 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=286, Invalid=1196, Unknown=0, NotChecked=0, Total=1482 [2024-11-20 19:12:16,112 INFO L432 NwaCegarLoop]: 249 mSDtfsCounter, 1003 mSDsluCounter, 1822 mSDsCounter, 0 mSdLazyCounter, 2385 mSolverCounterSat, 666 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1037 SdHoareTripleChecker+Valid, 2071 SdHoareTripleChecker+Invalid, 3052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 666 IncrementalHoareTripleChecker+Valid, 2385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2024-11-20 19:12:16,112 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1037 Valid, 2071 Invalid, 3052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [666 Valid, 2385 Invalid, 1 Unknown, 0 Unchecked, 8.6s Time] [2024-11-20 19:12:16,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2024-11-20 19:12:16,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 431. [2024-11-20 19:12:16,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 295 states have (on average 1.3661016949152542) internal successors, (403), 300 states have internal predecessors, (403), 113 states have call successors, (113), 16 states have call predecessors, (113), 19 states have return successors, (129), 114 states have call predecessors, (129), 111 states have call successors, (129) [2024-11-20 19:12:16,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 645 transitions. [2024-11-20 19:12:16,160 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 645 transitions. Word has length 121 [2024-11-20 19:12:16,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:12:16,161 INFO L471 AbstractCegarLoop]: Abstraction has 431 states and 645 transitions. [2024-11-20 19:12:16,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 4.875) internal successors, (78), 15 states have internal predecessors, (78), 8 states have call successors, (18), 8 states have call predecessors, (18), 5 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-20 19:12:16,161 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 645 transitions. [2024-11-20 19:12:16,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-20 19:12:16,163 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:12:16,163 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 19:12:16,175 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-20 19:12:16,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-20 19:12:16,367 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ##fun~$Pointer$~TO~$Pointer$Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-20 19:12:16,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:12:16,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1256412407, now seen corresponding path program 1 times [2024-11-20 19:12:16,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:12:16,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010350443] [2024-11-20 19:12:16,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:12:16,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:12:16,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:12:17,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 19:12:17,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:12:17,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 19:12:17,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:12:17,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-20 19:12:17,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:12:17,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 19:12:17,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:12:17,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 19:12:17,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:12:17,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-20 19:12:17,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:12:17,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-20 19:12:17,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:12:17,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-20 19:12:17,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:12:17,956 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2024-11-20 19:12:17,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:12:17,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010350443] [2024-11-20 19:12:17,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010350443] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 19:12:17,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [535664325] [2024-11-20 19:12:17,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:12:17,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:12:17,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 19:12:17,959 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 19:12:17,963 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-20 19:12:18,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:12:18,511 INFO L255 TraceCheckSpWp]: Trace formula consists of 1271 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-20 19:12:18,517 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 19:12:18,605 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-20 19:12:18,658 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 19:12:18,658 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 7 [2024-11-20 19:12:18,744 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 27 treesize of output 1 [2024-11-20 19:12:18,773 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 19:12:18,774 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 23 [2024-11-20 19:12:18,826 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 19:12:18,826 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 7 [2024-11-20 19:12:18,869 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 48 proven. 2 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2024-11-20 19:12:18,869 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 19:12:19,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [535664325] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 19:12:19,093 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-20 19:12:19,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10] total 22 [2024-11-20 19:12:19,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922792168] [2024-11-20 19:12:19,093 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-20 19:12:19,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-20 19:12:19,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:12:19,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-20 19:12:19,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=572, Unknown=0, NotChecked=0, Total=650 [2024-11-20 19:12:19,095 INFO L87 Difference]: Start difference. First operand 431 states and 645 transitions. Second operand has 22 states, 19 states have (on average 5.315789473684211) internal successors, (101), 18 states have internal predecessors, (101), 9 states have call successors, (18), 9 states have call predecessors, (18), 5 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) [2024-11-20 19:12:24,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 19:12:27,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 19:12:30,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:12:30,696 INFO L93 Difference]: Finished difference Result 787 states and 1203 transitions. [2024-11-20 19:12:30,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-20 19:12:30,696 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 5.315789473684211) internal successors, (101), 18 states have internal predecessors, (101), 9 states have call successors, (18), 9 states have call predecessors, (18), 5 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) Word has length 123 [2024-11-20 19:12:30,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:12:30,700 INFO L225 Difference]: With dead ends: 787 [2024-11-20 19:12:30,700 INFO L226 Difference]: Without dead ends: 410 [2024-11-20 19:12:30,702 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 425 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=333, Invalid=1647, Unknown=0, NotChecked=0, Total=1980 [2024-11-20 19:12:30,703 INFO L432 NwaCegarLoop]: 222 mSDtfsCounter, 1084 mSDsluCounter, 1948 mSDsCounter, 0 mSdLazyCounter, 2257 mSolverCounterSat, 682 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1101 SdHoareTripleChecker+Valid, 2170 SdHoareTripleChecker+Invalid, 2940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 682 IncrementalHoareTripleChecker+Valid, 2257 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2024-11-20 19:12:30,703 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1101 Valid, 2170 Invalid, 2940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [682 Valid, 2257 Invalid, 1 Unknown, 0 Unchecked, 10.5s Time] [2024-11-20 19:12:30,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2024-11-20 19:12:30,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 390. [2024-11-20 19:12:30,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 273 states have (on average 1.3406593406593406) internal successors, (366), 278 states have internal predecessors, (366), 96 states have call successors, (96), 16 states have call predecessors, (96), 17 states have return successors, (107), 95 states have call predecessors, (107), 94 states have call successors, (107) [2024-11-20 19:12:30,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 569 transitions. [2024-11-20 19:12:30,749 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 569 transitions. Word has length 123 [2024-11-20 19:12:30,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:12:30,750 INFO L471 AbstractCegarLoop]: Abstraction has 390 states and 569 transitions. [2024-11-20 19:12:30,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 5.315789473684211) internal successors, (101), 18 states have internal predecessors, (101), 9 states have call successors, (18), 9 states have call predecessors, (18), 5 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) [2024-11-20 19:12:30,750 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 569 transitions. [2024-11-20 19:12:30,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-20 19:12:30,752 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:12:30,752 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 19:12:30,764 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-20 19:12:30,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-20 19:12:30,953 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ##fun~$Pointer$~TO~$Pointer$Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-20 19:12:30,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:12:30,953 INFO L85 PathProgramCache]: Analyzing trace with hash 662403649, now seen corresponding path program 1 times [2024-11-20 19:12:30,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:12:30,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839422669] [2024-11-20 19:12:30,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:12:30,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:12:31,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:12:32,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 19:12:32,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:12:32,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 19:12:32,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:12:32,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-20 19:12:32,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:12:32,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 19:12:32,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:12:32,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 19:12:32,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:12:32,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 19:12:32,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:12:32,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-20 19:12:32,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:12:32,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-20 19:12:32,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:12:32,785 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2024-11-20 19:12:32,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:12:32,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839422669] [2024-11-20 19:12:32,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839422669] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 19:12:32,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [585705372] [2024-11-20 19:12:32,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:12:32,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:12:32,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 19:12:32,788 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 19:12:32,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-20 19:12:33,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:12:33,318 INFO L255 TraceCheckSpWp]: Trace formula consists of 1265 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-20 19:12:33,322 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 19:12:33,407 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 27 treesize of output 1 [2024-11-20 19:12:33,541 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2024-11-20 19:12:33,585 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 64 proven. 2 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2024-11-20 19:12:33,585 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 19:12:33,788 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 22 treesize of output 20 [2024-11-20 19:12:33,795 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 32 treesize of output 28 [2024-11-20 19:12:33,950 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 22 treesize of output 20 [2024-11-20 19:12:33,954 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 32 treesize of output 28 [2024-11-20 19:12:34,051 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2024-11-20 19:12:34,057 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 32 treesize of output 28 [2024-11-20 19:12:34,267 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2024-11-20 19:12:34,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [585705372] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 19:12:34,267 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 19:12:34,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12, 12] total 32 [2024-11-20 19:12:34,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138576236] [2024-11-20 19:12:34,268 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 19:12:34,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-20 19:12:34,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:12:34,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-20 19:12:34,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=890, Unknown=0, NotChecked=0, Total=992 [2024-11-20 19:12:34,270 INFO L87 Difference]: Start difference. First operand 390 states and 569 transitions. Second operand has 32 states, 28 states have (on average 4.142857142857143) internal successors, (116), 27 states have internal predecessors, (116), 12 states have call successors, (26), 12 states have call predecessors, (26), 9 states have return successors, (21), 9 states have call predecessors, (21), 10 states have call successors, (21) [2024-11-20 19:12:38,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 19:12:40,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 19:12:44,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 19:12:49,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []