./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_87-lists_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/goblint-regression/28-race_reach_87-lists_racefree.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7be9b237ca4111a24c77c67cce26f31a788af03984af96dee7353f79c789c2c1 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 10:25:00,955 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 10:25:01,041 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 10:25:01,050 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 10:25:01,050 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 10:25:01,087 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 10:25:01,088 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 10:25:01,089 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 10:25:01,089 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 10:25:01,090 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 10:25:01,090 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 10:25:01,091 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 10:25:01,091 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 10:25:01,094 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 10:25:01,094 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 10:25:01,094 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 10:25:01,095 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 10:25:01,095 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 10:25:01,095 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 10:25:01,095 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 10:25:01,096 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 10:25:01,100 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 10:25:01,101 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 10:25:01,101 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 10:25:01,101 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 10:25:01,101 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 10:25:01,101 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 10:25:01,102 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 10:25:01,102 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 10:25:01,102 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 10:25:01,102 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 10:25:01,103 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 10:25:01,103 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:25:01,103 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 10:25:01,103 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 10:25:01,104 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 10:25:01,104 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 10:25:01,106 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 10:25:01,107 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 10:25:01,107 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 10:25:01,107 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 10:25:01,108 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 10:25:01,108 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7be9b237ca4111a24c77c67cce26f31a788af03984af96dee7353f79c789c2c1 [2024-11-10 10:25:01,384 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 10:25:01,417 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 10:25:01,423 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 10:25:01,424 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 10:25:01,425 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 10:25:01,426 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_87-lists_racefree.i [2024-11-10 10:25:02,916 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 10:25:03,194 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 10:25:03,195 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_87-lists_racefree.i [2024-11-10 10:25:03,224 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ab15c5bd/2f04e4dd7f2749bbb2bfca48cd38ecfb/FLAG1a1829630 [2024-11-10 10:25:03,242 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ab15c5bd/2f04e4dd7f2749bbb2bfca48cd38ecfb [2024-11-10 10:25:03,244 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 10:25:03,245 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 10:25:03,246 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 10:25:03,246 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 10:25:03,251 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 10:25:03,252 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:25:03" (1/1) ... [2024-11-10 10:25:03,252 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7279a748 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:03, skipping insertion in model container [2024-11-10 10:25:03,253 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:25:03" (1/1) ... [2024-11-10 10:25:03,298 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 10:25:03,715 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_87-lists_racefree.i[47038,47051] [2024-11-10 10:25:03,770 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:25:04,180 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 10:25:04,257 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_87-lists_racefree.i[47038,47051] [2024-11-10 10:25:04,282 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:25:04,399 INFO L204 MainTranslator]: Completed translation [2024-11-10 10:25:04,400 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:04 WrapperNode [2024-11-10 10:25:04,400 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 10:25:04,401 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 10:25:04,402 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 10:25:04,402 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 10:25:04,409 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:04" (1/1) ... [2024-11-10 10:25:04,464 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:04" (1/1) ... [2024-11-10 10:25:04,576 INFO L138 Inliner]: procedures = 280, calls = 1604, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 1775 [2024-11-10 10:25:04,577 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 10:25:04,578 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 10:25:04,578 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 10:25:04,578 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 10:25:04,589 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:04" (1/1) ... [2024-11-10 10:25:04,589 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:04" (1/1) ... [2024-11-10 10:25:04,613 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:04" (1/1) ... [2024-11-10 10:25:04,664 INFO L175 MemorySlicer]: Split 1569 memory accesses to 8 slices as follows [2, 2, 5, 259, 5, 1280, 14, 2]. 82 percent of accesses are in the largest equivalence class. The 1548 initializations are split as follows [2, 0, 5, 256, 5, 1280, 0, 0]. The 11 writes are split as follows [0, 1, 0, 1, 0, 0, 8, 1]. [2024-11-10 10:25:04,664 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:04" (1/1) ... [2024-11-10 10:25:04,665 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:04" (1/1) ... [2024-11-10 10:25:04,731 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:04" (1/1) ... [2024-11-10 10:25:04,737 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:04" (1/1) ... [2024-11-10 10:25:04,752 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:04" (1/1) ... [2024-11-10 10:25:04,764 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:04" (1/1) ... [2024-11-10 10:25:04,779 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 10:25:04,781 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 10:25:04,781 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 10:25:04,781 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 10:25:04,782 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:04" (1/1) ... [2024-11-10 10:25:04,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:25:04,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:25:04,818 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) [2024-11-10 10:25:04,834 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 [2024-11-10 10:25:04,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 10:25:04,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-10 10:25:04,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-10 10:25:04,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-10 10:25:04,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-10 10:25:04,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-10 10:25:04,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-10 10:25:04,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-10 10:25:04,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-10 10:25:04,884 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-11-10 10:25:04,885 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-11-10 10:25:04,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 10:25:04,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-10 10:25:04,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-10 10:25:04,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-10 10:25:04,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-10 10:25:04,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-10 10:25:04,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-10 10:25:04,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-10 10:25:04,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-10 10:25:04,886 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-10 10:25:04,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 10:25:04,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 10:25:04,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-10 10:25:04,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-10 10:25:04,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-10 10:25:04,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-10 10:25:04,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-10 10:25:04,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-10 10:25:04,887 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-10 10:25:04,887 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-10 10:25:04,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 10:25:04,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 10:25:04,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-10 10:25:04,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-10 10:25:04,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-10 10:25:04,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-10 10:25:04,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-10 10:25:04,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-10 10:25:04,889 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-10 10:25:04,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 10:25:04,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 10:25:04,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-10 10:25:04,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-10 10:25:04,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-10 10:25:04,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-10 10:25:04,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-10 10:25:04,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-10 10:25:04,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-10 10:25:04,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-10 10:25:04,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 10:25:04,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 10:25:04,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 10:25:04,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-10 10:25:04,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-10 10:25:04,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-10 10:25:04,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-10 10:25:04,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-10 10:25:04,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 10:25:04,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 10:25:04,896 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 10:25:05,130 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 10:25:05,133 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 10:25:07,134 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1051: havoc main_~#t1_ids~0#1.base, main_~#t1_ids~0#1.offset; [2024-11-10 10:25:07,136 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1051-1: SUMMARY for call ULTIMATE.dealloc(main_~#t1_ids~0#1.base, main_~#t1_ids~0#1.offset); srcloc: null [2024-11-10 10:25:07,136 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1052: havoc main_~#t2_ids~0#1.base, main_~#t2_ids~0#1.offset; [2024-11-10 10:25:07,136 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1052-1: SUMMARY for call ULTIMATE.dealloc(main_~#t2_ids~0#1.base, main_~#t2_ids~0#1.offset); srcloc: null [2024-11-10 10:25:07,138 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 10:25:07,139 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 10:25:49,334 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 10:25:49,334 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 10:25:49,335 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:25:49 BoogieIcfgContainer [2024-11-10 10:25:49,335 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 10:25:49,336 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 10:25:49,337 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 10:25:49,340 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 10:25:49,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:25:03" (1/3) ... [2024-11-10 10:25:49,345 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10a0ecd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:25:49, skipping insertion in model container [2024-11-10 10:25:49,345 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:04" (2/3) ... [2024-11-10 10:25:49,345 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10a0ecd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:25:49, skipping insertion in model container [2024-11-10 10:25:49,346 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:25:49" (3/3) ... [2024-11-10 10:25:49,349 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_87-lists_racefree.i [2024-11-10 10:25:49,366 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 10:25:49,366 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 10:25:49,366 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 10:25:49,487 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-10 10:25:49,528 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 95 transitions, 210 flow [2024-11-10 10:25:49,708 INFO L124 PetriNetUnfolderBase]: 52/208 cut-off events. [2024-11-10 10:25:49,709 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-10 10:25:49,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 225 conditions, 208 events. 52/208 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 807 event pairs, 0 based on Foata normal form. 0/148 useless extension candidates. Maximal degree in co-relation 104. Up to 8 conditions per place. [2024-11-10 10:25:49,716 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 95 transitions, 210 flow [2024-11-10 10:25:49,723 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 76 places, 93 transitions, 200 flow [2024-11-10 10:25:49,739 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 10:25:49,750 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;@26dd04cb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 10:25:49,751 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-10 10:25:49,863 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 10:25:49,865 INFO L124 PetriNetUnfolderBase]: 6/34 cut-off events. [2024-11-10 10:25:49,865 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 10:25:49,865 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:25:49,866 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-10 10:25:49,867 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 10:25:49,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:25:49,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1090408042, now seen corresponding path program 1 times [2024-11-10 10:25:49,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:25:49,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252617808] [2024-11-10 10:25:49,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:25:49,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:25:50,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:25:50,491 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 10:25:50,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:25:50,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252617808] [2024-11-10 10:25:50,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252617808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:25:50,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:25:50,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 10:25:50,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825165758] [2024-11-10 10:25:50,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:25:50,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 10:25:50,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:25:50,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 10:25:50,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 10:25:50,539 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 95 [2024-11-10 10:25:50,542 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 93 transitions, 200 flow. Second operand has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 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) [2024-11-10 10:25:50,542 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:25:50,543 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 95 [2024-11-10 10:25:50,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:25:51,480 INFO L124 PetriNetUnfolderBase]: 2438/4861 cut-off events. [2024-11-10 10:25:51,480 INFO L125 PetriNetUnfolderBase]: For 144/144 co-relation queries the response was YES. [2024-11-10 10:25:51,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8835 conditions, 4861 events. 2438/4861 cut-off events. For 144/144 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 35722 event pairs, 2269 based on Foata normal form. 1133/5830 useless extension candidates. Maximal degree in co-relation 7524. Up to 3903 conditions per place. [2024-11-10 10:25:51,511 INFO L140 encePairwiseOnDemand]: 78/95 looper letters, 49 selfloop transitions, 0 changer transitions 0/76 dead transitions. [2024-11-10 10:25:51,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 76 transitions, 264 flow [2024-11-10 10:25:51,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 10:25:51,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-10 10:25:51,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 120 transitions. [2024-11-10 10:25:51,524 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.631578947368421 [2024-11-10 10:25:51,525 INFO L175 Difference]: Start difference. First operand has 76 places, 93 transitions, 200 flow. Second operand 2 states and 120 transitions. [2024-11-10 10:25:51,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 76 transitions, 264 flow [2024-11-10 10:25:51,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 76 transitions, 264 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 10:25:51,535 INFO L231 Difference]: Finished difference. Result has 77 places, 76 transitions, 166 flow [2024-11-10 10:25:51,539 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=166, PETRI_PLACES=77, PETRI_TRANSITIONS=76} [2024-11-10 10:25:51,544 INFO L277 CegarLoopForPetriNet]: 76 programPoint places, 1 predicate places. [2024-11-10 10:25:51,544 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 76 transitions, 166 flow [2024-11-10 10:25:51,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 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) [2024-11-10 10:25:51,545 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:25:51,545 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:25:51,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 10:25:51,545 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 10:25:51,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:25:51,546 INFO L85 PathProgramCache]: Analyzing trace with hash 728644064, now seen corresponding path program 1 times [2024-11-10 10:25:51,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:25:51,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027731011] [2024-11-10 10:25:51,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:25:51,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:25:51,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:25:52,087 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 10:25:52,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:25:52,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027731011] [2024-11-10 10:25:52,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027731011] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:25:52,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:25:52,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 10:25:52,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996592020] [2024-11-10 10:25:52,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:25:52,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 10:25:52,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:25:52,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 10:25:52,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 10:25:52,095 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 95 [2024-11-10 10:25:52,095 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 76 transitions, 166 flow. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2024-11-10 10:25:52,096 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:25:52,096 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 95 [2024-11-10 10:25:52,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:25:52,759 INFO L124 PetriNetUnfolderBase]: 2438/4863 cut-off events. [2024-11-10 10:25:52,760 INFO L125 PetriNetUnfolderBase]: For 144/144 co-relation queries the response was YES. [2024-11-10 10:25:52,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8840 conditions, 4863 events. 2438/4863 cut-off events. For 144/144 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 35672 event pairs, 2269 based on Foata normal form. 0/4698 useless extension candidates. Maximal degree in co-relation 8835. Up to 3904 conditions per place. [2024-11-10 10:25:52,792 INFO L140 encePairwiseOnDemand]: 92/95 looper letters, 49 selfloop transitions, 2 changer transitions 0/77 dead transitions. [2024-11-10 10:25:52,792 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 77 transitions, 270 flow [2024-11-10 10:25:52,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 10:25:52,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 10:25:52,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 130 transitions. [2024-11-10 10:25:52,796 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45614035087719296 [2024-11-10 10:25:52,796 INFO L175 Difference]: Start difference. First operand has 77 places, 76 transitions, 166 flow. Second operand 3 states and 130 transitions. [2024-11-10 10:25:52,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 77 transitions, 270 flow [2024-11-10 10:25:52,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 77 transitions, 270 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 10:25:52,802 INFO L231 Difference]: Finished difference. Result has 80 places, 77 transitions, 178 flow [2024-11-10 10:25:52,802 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=178, PETRI_PLACES=80, PETRI_TRANSITIONS=77} [2024-11-10 10:25:52,803 INFO L277 CegarLoopForPetriNet]: 76 programPoint places, 4 predicate places. [2024-11-10 10:25:52,803 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 77 transitions, 178 flow [2024-11-10 10:25:52,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2024-11-10 10:25:52,804 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:25:52,804 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:25:52,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 10:25:52,804 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 10:25:52,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:25:52,806 INFO L85 PathProgramCache]: Analyzing trace with hash -761358461, now seen corresponding path program 1 times [2024-11-10 10:25:52,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:25:52,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986104367] [2024-11-10 10:25:52,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:25:52,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:25:52,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:25:53,540 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 10:25:53,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:25:53,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986104367] [2024-11-10 10:25:53,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986104367] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 10:25:53,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1685671807] [2024-11-10 10:25:53,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:25:53,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 10:25:53,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:25:53,551 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) [2024-11-10 10:25:53,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 10:25:54,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:25:54,329 INFO L255 TraceCheckSpWp]: Trace formula consists of 3768 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-10 10:25:54,336 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 10:25:54,369 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 10:25:54,370 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 10:25:54,399 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 10:25:54,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1685671807] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 10:25:54,400 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 10:25:54,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-10 10:25:54,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484932553] [2024-11-10 10:25:54,400 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 10:25:54,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 10:25:54,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:25:54,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 10:25:54,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-10 10:25:54,405 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 95 [2024-11-10 10:25:54,405 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 77 transitions, 178 flow. Second operand has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 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) [2024-11-10 10:25:54,406 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:25:54,406 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 95 [2024-11-10 10:25:54,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:25:55,126 INFO L124 PetriNetUnfolderBase]: 2438/4869 cut-off events. [2024-11-10 10:25:55,126 INFO L125 PetriNetUnfolderBase]: For 149/149 co-relation queries the response was YES. [2024-11-10 10:25:55,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8859 conditions, 4869 events. 2438/4869 cut-off events. For 149/149 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 35768 event pairs, 2269 based on Foata normal form. 0/4704 useless extension candidates. Maximal degree in co-relation 8852. Up to 3904 conditions per place. [2024-11-10 10:25:55,155 INFO L140 encePairwiseOnDemand]: 92/95 looper letters, 49 selfloop transitions, 5 changer transitions 0/80 dead transitions. [2024-11-10 10:25:55,155 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 80 transitions, 298 flow [2024-11-10 10:25:55,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 10:25:55,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 10:25:55,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 213 transitions. [2024-11-10 10:25:55,158 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3736842105263158 [2024-11-10 10:25:55,158 INFO L175 Difference]: Start difference. First operand has 80 places, 77 transitions, 178 flow. Second operand 6 states and 213 transitions. [2024-11-10 10:25:55,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 80 transitions, 298 flow [2024-11-10 10:25:55,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 80 transitions, 296 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 10:25:55,162 INFO L231 Difference]: Finished difference. Result has 87 places, 80 transitions, 212 flow [2024-11-10 10:25:55,162 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=212, PETRI_PLACES=87, PETRI_TRANSITIONS=80} [2024-11-10 10:25:55,163 INFO L277 CegarLoopForPetriNet]: 76 programPoint places, 11 predicate places. [2024-11-10 10:25:55,163 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 80 transitions, 212 flow [2024-11-10 10:25:55,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 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) [2024-11-10 10:25:55,164 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:25:55,164 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 4, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-10 10:25:55,190 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 10:25:55,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 10:25:55,365 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 10:25:55,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:25:55,366 INFO L85 PathProgramCache]: Analyzing trace with hash -80788500, now seen corresponding path program 2 times [2024-11-10 10:25:55,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:25:55,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523829078] [2024-11-10 10:25:55,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:25:55,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:25:55,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:25:55,996 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 10:25:55,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:25:55,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523829078] [2024-11-10 10:25:55,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523829078] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 10:25:55,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1345785028] [2024-11-10 10:25:55,997 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 10:25:55,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 10:25:55,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:25:55,999 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) [2024-11-10 10:25:56,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 10:25:56,854 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-10 10:25:56,855 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 10:25:56,867 INFO L255 TraceCheckSpWp]: Trace formula consists of 3924 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-10 10:25:56,870 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 10:25:56,891 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 10:25:56,892 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 10:25:56,954 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 10:25:56,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1345785028] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 10:25:56,955 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 10:25:56,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-11-10 10:25:56,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549006527] [2024-11-10 10:25:56,955 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 10:25:56,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 10:25:56,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:25:56,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 10:25:56,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-11-10 10:25:56,957 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 95 [2024-11-10 10:25:56,958 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 80 transitions, 212 flow. Second operand has 13 states, 13 states have (on average 27.384615384615383) internal successors, (356), 13 states have internal predecessors, (356), 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) [2024-11-10 10:25:56,958 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:25:56,958 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 95 [2024-11-10 10:25:56,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:25:57,684 INFO L124 PetriNetUnfolderBase]: 2438/4881 cut-off events. [2024-11-10 10:25:57,685 INFO L125 PetriNetUnfolderBase]: For 256/256 co-relation queries the response was YES. [2024-11-10 10:25:57,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8903 conditions, 4881 events. 2438/4881 cut-off events. For 256/256 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 35624 event pairs, 2269 based on Foata normal form. 6/4723 useless extension candidates. Maximal degree in co-relation 8893. Up to 3904 conditions per place. [2024-11-10 10:25:57,711 INFO L140 encePairwiseOnDemand]: 92/95 looper letters, 49 selfloop transitions, 11 changer transitions 0/86 dead transitions. [2024-11-10 10:25:57,711 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 86 transitions, 368 flow [2024-11-10 10:25:57,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-10 10:25:57,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-10 10:25:57,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 378 transitions. [2024-11-10 10:25:57,714 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.33157894736842103 [2024-11-10 10:25:57,714 INFO L175 Difference]: Start difference. First operand has 87 places, 80 transitions, 212 flow. Second operand 12 states and 378 transitions. [2024-11-10 10:25:57,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 86 transitions, 368 flow [2024-11-10 10:25:57,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 86 transitions, 360 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-11-10 10:25:57,718 INFO L231 Difference]: Finished difference. Result has 103 places, 86 transitions, 288 flow [2024-11-10 10:25:57,718 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=288, PETRI_PLACES=103, PETRI_TRANSITIONS=86} [2024-11-10 10:25:57,719 INFO L277 CegarLoopForPetriNet]: 76 programPoint places, 27 predicate places. [2024-11-10 10:25:57,719 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 86 transitions, 288 flow [2024-11-10 10:25:57,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 27.384615384615383) internal successors, (356), 13 states have internal predecessors, (356), 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) [2024-11-10 10:25:57,719 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:25:57,719 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-10 10:25:57,744 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-10 10:25:57,920 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,SelfDestructingSolverStorable3 [2024-11-10 10:25:57,921 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 10:25:57,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:25:57,921 INFO L85 PathProgramCache]: Analyzing trace with hash -2035706754, now seen corresponding path program 3 times [2024-11-10 10:25:57,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:25:57,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262146599] [2024-11-10 10:25:57,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:25:57,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:25:58,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:25:59,058 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 10:25:59,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:25:59,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262146599] [2024-11-10 10:25:59,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262146599] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 10:25:59,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275949888] [2024-11-10 10:25:59,059 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-10 10:25:59,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 10:25:59,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:25:59,061 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) [2024-11-10 10:25:59,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process