./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing.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_92-evilcollapse_racing.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 6efa0097353392a416215c2535cfc6cdc34364d9b0eb2844e37da9edef467642 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 10:25:20,030 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 10:25:20,077 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 10:25:20,080 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 10:25:20,081 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 10:25:20,098 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 10:25:20,100 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 10:25:20,100 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 10:25:20,101 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 10:25:20,102 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 10:25:20,102 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 10:25:20,102 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 10:25:20,103 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 10:25:20,105 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 10:25:20,105 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 10:25:20,105 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 10:25:20,106 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 10:25:20,106 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 10:25:20,106 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 10:25:20,106 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 10:25:20,106 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 10:25:20,110 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 10:25:20,110 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 10:25:20,110 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 10:25:20,110 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 10:25:20,111 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 10:25:20,111 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 10:25:20,111 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 10:25:20,111 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 10:25:20,112 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 10:25:20,112 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 10:25:20,112 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 10:25:20,112 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:25:20,112 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 10:25:20,112 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 10:25:20,113 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 10:25:20,113 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 10:25:20,113 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 10:25:20,113 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 10:25:20,113 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 10:25:20,114 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 10:25:20,114 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 10:25:20,115 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6efa0097353392a416215c2535cfc6cdc34364d9b0eb2844e37da9edef467642 [2024-11-10 10:25:20,332 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 10:25:20,354 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 10:25:20,358 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 10:25:20,359 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 10:25:20,359 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 10:25:20,361 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing.i [2024-11-10 10:25:21,726 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 10:25:21,986 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 10:25:21,987 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing.i [2024-11-10 10:25:22,008 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26669aa04/845ca50a26134b36ab4c48ef36d57589/FLAG6e2dcf97e [2024-11-10 10:25:22,022 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26669aa04/845ca50a26134b36ab4c48ef36d57589 [2024-11-10 10:25:22,026 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 10:25:22,028 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 10:25:22,029 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 10:25:22,029 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 10:25:22,034 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 10:25:22,035 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:25:22" (1/1) ... [2024-11-10 10:25:22,036 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@441cd02f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:22, skipping insertion in model container [2024-11-10 10:25:22,036 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:25:22" (1/1) ... [2024-11-10 10:25:22,068 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 10:25:22,449 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_92-evilcollapse_racing.i[47038,47051] [2024-11-10 10:25:22,474 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-10 10:25:22,478 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-10 10:25:22,479 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-10 10:25:22,479 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-10 10:25:22,528 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:25:22,571 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 10:25:22,606 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_92-evilcollapse_racing.i[47038,47051] [2024-11-10 10:25:22,613 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-10 10:25:22,614 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-10 10:25:22,615 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-10 10:25:22,615 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-10 10:25:22,630 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:25:22,688 INFO L204 MainTranslator]: Completed translation [2024-11-10 10:25:22,688 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:22 WrapperNode [2024-11-10 10:25:22,689 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 10:25:22,691 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 10:25:22,691 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 10:25:22,691 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 10:25:22,697 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:22" (1/1) ... [2024-11-10 10:25:22,724 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:22" (1/1) ... [2024-11-10 10:25:22,753 INFO L138 Inliner]: procedures = 280, calls = 135, calls flagged for inlining = 11, calls inlined = 12, statements flattened = 303 [2024-11-10 10:25:22,753 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 10:25:22,754 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 10:25:22,754 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 10:25:22,754 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 10:25:22,763 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:22" (1/1) ... [2024-11-10 10:25:22,764 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:22" (1/1) ... [2024-11-10 10:25:22,768 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:22" (1/1) ... [2024-11-10 10:25:22,787 INFO L175 MemorySlicer]: Split 110 memory accesses to 4 slices as follows [2, 5, 101, 2]. 92 percent of accesses are in the largest equivalence class. The 87 initializations are split as follows [2, 5, 80, 0]. The 13 writes are split as follows [0, 0, 12, 1]. [2024-11-10 10:25:22,788 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:22" (1/1) ... [2024-11-10 10:25:22,788 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:22" (1/1) ... [2024-11-10 10:25:22,800 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:22" (1/1) ... [2024-11-10 10:25:22,801 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:22" (1/1) ... [2024-11-10 10:25:22,803 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:22" (1/1) ... [2024-11-10 10:25:22,805 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:22" (1/1) ... [2024-11-10 10:25:22,808 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 10:25:22,809 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 10:25:22,809 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 10:25:22,809 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 10:25:22,810 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:22" (1/1) ... [2024-11-10 10:25:22,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:25:22,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:25:22,838 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 10:25:22,840 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 10:25:22,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 10:25:22,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-10 10:25:22,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-10 10:25:22,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-10 10:25:22,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-10 10:25:22,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 10:25:22,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-10 10:25:22,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-10 10:25:22,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-10 10:25:22,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-10 10:25:22,875 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-10 10:25:22,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 10:25:22,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 10:25:22,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-10 10:25:22,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-10 10:25:22,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 10:25:22,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 10:25:22,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-10 10:25:22,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-10 10:25:22,876 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-10 10:25:22,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 10:25:22,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 10:25:22,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-10 10:25:22,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-10 10:25:22,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-10 10:25:22,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-10 10:25:22,877 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-10 10:25:22,877 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-10 10:25:22,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 10:25:22,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 10:25:22,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 10:25:22,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-10 10:25:22,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 10:25:22,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 10:25:22,879 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 10:25:23,038 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 10:25:23,040 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 10:25:23,368 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1072: havoc main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset; [2024-11-10 10:25:23,369 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1072-1: SUMMARY for call ULTIMATE.dealloc(main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset); srcloc: null [2024-11-10 10:25:23,461 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 10:25:23,461 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 10:25:24,099 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 10:25:24,102 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 10:25:24,102 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:25:24 BoogieIcfgContainer [2024-11-10 10:25:24,103 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 10:25:24,104 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 10:25:24,104 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 10:25:24,108 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 10:25:24,108 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:25:22" (1/3) ... [2024-11-10 10:25:24,109 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27f98ef7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:25:24, skipping insertion in model container [2024-11-10 10:25:24,109 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:22" (2/3) ... [2024-11-10 10:25:24,109 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27f98ef7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:25:24, skipping insertion in model container [2024-11-10 10:25:24,109 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:25:24" (3/3) ... [2024-11-10 10:25:24,111 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_92-evilcollapse_racing.i [2024-11-10 10:25:24,127 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 10:25:24,127 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 10:25:24,128 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 10:25:24,179 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-10 10:25:24,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 80 transitions, 167 flow [2024-11-10 10:25:24,253 INFO L124 PetriNetUnfolderBase]: 25/90 cut-off events. [2024-11-10 10:25:24,254 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 10:25:24,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 90 events. 25/90 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 176 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 65. Up to 4 conditions per place. [2024-11-10 10:25:24,258 INFO L82 GeneralOperation]: Start removeDead. Operand has 60 places, 80 transitions, 167 flow [2024-11-10 10:25:24,262 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 59 places, 78 transitions, 160 flow [2024-11-10 10:25:24,273 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 10:25:24,289 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;@7dbf6ecd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 10:25:24,291 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-10 10:25:24,303 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 10:25:24,303 INFO L124 PetriNetUnfolderBase]: 8/35 cut-off events. [2024-11-10 10:25:24,303 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 10:25:24,303 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:25:24,304 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-10 10:25:24,305 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 10:25:24,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:25:24,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1410603135, now seen corresponding path program 1 times [2024-11-10 10:25:24,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:25:24,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600066533] [2024-11-10 10:25:24,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:25:24,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:25:24,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:25:24,568 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 10:25:24,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:25:24,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600066533] [2024-11-10 10:25:24,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600066533] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:25:24,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:25:24,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 10:25:24,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575713069] [2024-11-10 10:25:24,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:25:24,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 10:25:24,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:25:24,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 10:25:24,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 10:25:24,614 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 80 [2024-11-10 10:25:24,615 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 78 transitions, 160 flow. Second operand has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 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 10:25:24,616 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:25:24,616 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 80 [2024-11-10 10:25:24,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:25:24,780 INFO L124 PetriNetUnfolderBase]: 115/369 cut-off events. [2024-11-10 10:25:24,783 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 10:25:24,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 610 conditions, 369 events. 115/369 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1890 event pairs, 95 based on Foata normal form. 116/468 useless extension candidates. Maximal degree in co-relation 573. Up to 237 conditions per place. [2024-11-10 10:25:24,786 INFO L140 encePairwiseOnDemand]: 63/80 looper letters, 32 selfloop transitions, 0 changer transitions 0/61 dead transitions. [2024-11-10 10:25:24,787 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 61 transitions, 190 flow [2024-11-10 10:25:24,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 10:25:24,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-10 10:25:24,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 107 transitions. [2024-11-10 10:25:24,799 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.66875 [2024-11-10 10:25:24,800 INFO L175 Difference]: Start difference. First operand has 59 places, 78 transitions, 160 flow. Second operand 2 states and 107 transitions. [2024-11-10 10:25:24,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 61 transitions, 190 flow [2024-11-10 10:25:24,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 61 transitions, 190 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 10:25:24,806 INFO L231 Difference]: Finished difference. Result has 60 places, 61 transitions, 126 flow [2024-11-10 10:25:24,809 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=126, PETRI_PLACES=60, PETRI_TRANSITIONS=61} [2024-11-10 10:25:24,812 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 1 predicate places. [2024-11-10 10:25:24,814 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 61 transitions, 126 flow [2024-11-10 10:25:24,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 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 10:25:24,814 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:25:24,814 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:25:24,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 10:25:24,817 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 10:25:24,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:25:24,817 INFO L85 PathProgramCache]: Analyzing trace with hash 362316910, now seen corresponding path program 1 times [2024-11-10 10:25:24,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:25:24,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289920083] [2024-11-10 10:25:24,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:25:24,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:25:24,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:25:24,982 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 10:25:24,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:25:24,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289920083] [2024-11-10 10:25:24,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289920083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:25:24,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:25:24,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 10:25:24,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800281562] [2024-11-10 10:25:24,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:25:24,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 10:25:24,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:25:24,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 10:25:24,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 10:25:24,990 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 80 [2024-11-10 10:25:24,990 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 61 transitions, 126 flow. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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 10:25:24,990 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:25:24,990 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 80 [2024-11-10 10:25:24,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:25:25,152 INFO L124 PetriNetUnfolderBase]: 116/375 cut-off events. [2024-11-10 10:25:25,152 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 10:25:25,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 621 conditions, 375 events. 116/375 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1880 event pairs, 95 based on Foata normal form. 0/357 useless extension candidates. Maximal degree in co-relation 617. Up to 238 conditions per place. [2024-11-10 10:25:25,155 INFO L140 encePairwiseOnDemand]: 77/80 looper letters, 34 selfloop transitions, 2 changer transitions 0/64 dead transitions. [2024-11-10 10:25:25,155 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 64 transitions, 204 flow [2024-11-10 10:25:25,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 10:25:25,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 10:25:25,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 121 transitions. [2024-11-10 10:25:25,157 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5041666666666667 [2024-11-10 10:25:25,157 INFO L175 Difference]: Start difference. First operand has 60 places, 61 transitions, 126 flow. Second operand 3 states and 121 transitions. [2024-11-10 10:25:25,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 64 transitions, 204 flow [2024-11-10 10:25:25,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 64 transitions, 204 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 10:25:25,159 INFO L231 Difference]: Finished difference. Result has 63 places, 62 transitions, 138 flow [2024-11-10 10:25:25,160 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=138, PETRI_PLACES=63, PETRI_TRANSITIONS=62} [2024-11-10 10:25:25,160 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 4 predicate places. [2024-11-10 10:25:25,161 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 62 transitions, 138 flow [2024-11-10 10:25:25,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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 10:25:25,161 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:25:25,161 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:25:25,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 10:25:25,161 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 10:25:25,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:25:25,162 INFO L85 PathProgramCache]: Analyzing trace with hash 397275521, now seen corresponding path program 1 times [2024-11-10 10:25:25,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:25:25,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236418813] [2024-11-10 10:25:25,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:25:25,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:25:25,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:25:25,243 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 10:25:25,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:25:25,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236418813] [2024-11-10 10:25:25,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236418813] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:25:25,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:25:25,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 10:25:25,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520997221] [2024-11-10 10:25:25,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:25:25,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 10:25:25,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:25:25,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 10:25:25,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 10:25:25,247 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 80 [2024-11-10 10:25:25,247 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 62 transitions, 138 flow. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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 10:25:25,247 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:25:25,248 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 80 [2024-11-10 10:25:25,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:25:25,386 INFO L124 PetriNetUnfolderBase]: 116/379 cut-off events. [2024-11-10 10:25:25,386 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 10:25:25,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 635 conditions, 379 events. 116/379 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1902 event pairs, 95 based on Foata normal form. 0/360 useless extension candidates. Maximal degree in co-relation 629. Up to 242 conditions per place. [2024-11-10 10:25:25,389 INFO L140 encePairwiseOnDemand]: 77/80 looper letters, 33 selfloop transitions, 2 changer transitions 0/63 dead transitions. [2024-11-10 10:25:25,389 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 63 transitions, 210 flow [2024-11-10 10:25:25,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 10:25:25,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 10:25:25,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 119 transitions. [2024-11-10 10:25:25,390 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49583333333333335 [2024-11-10 10:25:25,390 INFO L175 Difference]: Start difference. First operand has 63 places, 62 transitions, 138 flow. Second operand 3 states and 119 transitions. [2024-11-10 10:25:25,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 63 transitions, 210 flow [2024-11-10 10:25:25,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 63 transitions, 208 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 10:25:25,392 INFO L231 Difference]: Finished difference. Result has 65 places, 63 transitions, 148 flow [2024-11-10 10:25:25,393 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=148, PETRI_PLACES=65, PETRI_TRANSITIONS=63} [2024-11-10 10:25:25,393 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 6 predicate places. [2024-11-10 10:25:25,393 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 63 transitions, 148 flow [2024-11-10 10:25:25,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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 10:25:25,394 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:25:25,394 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:25:25,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 10:25:25,394 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 10:25:25,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:25:25,395 INFO L85 PathProgramCache]: Analyzing trace with hash -419042910, now seen corresponding path program 1 times [2024-11-10 10:25:25,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:25:25,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679964963] [2024-11-10 10:25:25,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:25:25,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:25:25,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:25:25,501 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 10:25:25,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:25:25,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679964963] [2024-11-10 10:25:25,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679964963] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 10:25:25,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1314864677] [2024-11-10 10:25:25,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:25:25,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 10:25:25,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:25:25,504 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 10:25:25,506 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 10:25:25,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:25:25,660 INFO L255 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-10 10:25:25,664 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 10:25:25,698 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 10:25:25,698 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 10:25:25,721 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 10:25:25,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1314864677] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 10:25:25,722 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 10:25:25,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-10 10:25:25,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078316616] [2024-11-10 10:25:25,723 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 10:25:25,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 10:25:25,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:25:25,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 10:25:25,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-10 10:25:25,724 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 80 [2024-11-10 10:25:25,725 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 63 transitions, 148 flow. Second operand has 7 states, 7 states have (on average 30.0) internal successors, (210), 7 states have internal predecessors, (210), 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 10:25:25,725 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:25:25,725 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 80 [2024-11-10 10:25:25,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:25:25,983 INFO L124 PetriNetUnfolderBase]: 116/391 cut-off events. [2024-11-10 10:25:25,983 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-10 10:25:25,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 669 conditions, 391 events. 116/391 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1911 event pairs, 95 based on Foata normal form. 0/372 useless extension candidates. Maximal degree in co-relation 662. Up to 242 conditions per place. [2024-11-10 10:25:25,985 INFO L140 encePairwiseOnDemand]: 77/80 looper letters, 33 selfloop transitions, 5 changer transitions 0/66 dead transitions. [2024-11-10 10:25:25,985 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 66 transitions, 236 flow [2024-11-10 10:25:25,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 10:25:25,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 10:25:25,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 208 transitions. [2024-11-10 10:25:25,990 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43333333333333335 [2024-11-10 10:25:25,990 INFO L175 Difference]: Start difference. First operand has 65 places, 63 transitions, 148 flow. Second operand 6 states and 208 transitions. [2024-11-10 10:25:25,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 66 transitions, 236 flow [2024-11-10 10:25:25,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 66 transitions, 234 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 10:25:25,994 INFO L231 Difference]: Finished difference. Result has 72 places, 66 transitions, 182 flow [2024-11-10 10:25:25,994 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=182, PETRI_PLACES=72, PETRI_TRANSITIONS=66} [2024-11-10 10:25:25,995 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 13 predicate places. [2024-11-10 10:25:25,996 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 66 transitions, 182 flow [2024-11-10 10:25:25,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 30.0) internal successors, (210), 7 states have internal predecessors, (210), 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 10:25:25,996 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:25:25,996 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:25:26,011 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-10 10:25:26,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 10:25:26,198 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 10:25:26,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:25:26,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1042745211, now seen corresponding path program 2 times [2024-11-10 10:25:26,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:25:26,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379013458] [2024-11-10 10:25:26,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:25:26,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:25:26,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:25:26,417 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-10 10:25:26,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:25:26,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379013458] [2024-11-10 10:25:26,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379013458] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 10:25:26,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1885283896] [2024-11-10 10:25:26,418 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 10:25:26,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 10:25:26,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:25:26,420 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 10:25:26,421 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 10:25:26,650 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-10 10:25:26,650 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 10:25:26,654 INFO L255 TraceCheckSpWp]: Trace formula consists of 720 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-10 10:25:26,656 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 10:25:26,696 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 10:25:26,696 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 10:25:26,758 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 10:25:26,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1885283896] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 10:25:26,758 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 10:25:26,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2024-11-10 10:25:26,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29961106] [2024-11-10 10:25:26,759 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 10:25:26,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-10 10:25:26,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:25:26,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-10 10:25:26,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-11-10 10:25:26,762 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 80 [2024-11-10 10:25:26,763 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 66 transitions, 182 flow. Second operand has 14 states, 14 states have (on average 28.785714285714285) internal successors, (403), 14 states have internal predecessors, (403), 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 10:25:26,763 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:25:26,763 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 80 [2024-11-10 10:25:26,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:25:27,677 INFO L124 PetriNetUnfolderBase]: 117/441 cut-off events. [2024-11-10 10:25:27,678 INFO L125 PetriNetUnfolderBase]: For 347/347 co-relation queries the response was YES. [2024-11-10 10:25:27,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 827 conditions, 441 events. 117/441 cut-off events. For 347/347 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2040 event pairs, 95 based on Foata normal form. 19/443 useless extension candidates. Maximal degree in co-relation 817. Up to 239 conditions per place. [2024-11-10 10:25:27,681 INFO L140 encePairwiseOnDemand]: 74/80 looper letters, 36 selfloop transitions, 36 changer transitions 0/99 dead transitions. [2024-11-10 10:25:27,681 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 99 transitions, 542 flow [2024-11-10 10:25:27,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-10 10:25:27,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2024-11-10 10:25:27,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 1009 transitions. [2024-11-10 10:25:27,685 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3709558823529412 [2024-11-10 10:25:27,685 INFO L175 Difference]: Start difference. First operand has 72 places, 66 transitions, 182 flow. Second operand 34 states and 1009 transitions. [2024-11-10 10:25:27,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 99 transitions, 542 flow [2024-11-10 10:25:27,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 99 transitions, 518 flow, removed 9 selfloop flow, removed 1 redundant places. [2024-11-10 10:25:27,693 INFO L231 Difference]: Finished difference. Result has 123 places, 97 transitions, 512 flow [2024-11-10 10:25:27,694 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=512, PETRI_PLACES=123, PETRI_TRANSITIONS=97} [2024-11-10 10:25:27,694 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 64 predicate places. [2024-11-10 10:25:27,694 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 97 transitions, 512 flow [2024-11-10 10:25:27,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 28.785714285714285) internal successors, (403), 14 states have internal predecessors, (403), 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 10:25:27,695 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:25:27,695 INFO L204 CegarLoopForPetriNet]: trace histogram [22, 20, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-10 10:25:27,712 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-10 10:25:27,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 10:25:27,896 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 10:25:27,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:25:27,896 INFO L85 PathProgramCache]: Analyzing trace with hash -812658930, now seen corresponding path program 3 times [2024-11-10 10:25:27,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:25:27,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063977200] [2024-11-10 10:25:27,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:25:27,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:25:28,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:25:29,191 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 246 proven. 110 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-10 10:25:29,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:25:29,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063977200] [2024-11-10 10:25:29,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063977200] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 10:25:29,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [592726890] [2024-11-10 10:25:29,192 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-10 10:25:29,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 10:25:29,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:25:29,194 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 10:25:29,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 10:25:29,764 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-10 10:25:29,764 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 10:25:29,768 INFO L255 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 10:25:29,770 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 10:25:29,884 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 0 proven. 249 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2024-11-10 10:25:29,886 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 10:25:29,991 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 0 proven. 249 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2024-11-10 10:25:29,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [592726890] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 10:25:29,993 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 10:25:29,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 4, 4] total 19 [2024-11-10 10:25:29,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258002076] [2024-11-10 10:25:29,993 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 10:25:29,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-10 10:25:29,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:25:29,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-10 10:25:29,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2024-11-10 10:25:30,002 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 80 [2024-11-10 10:25:30,003 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 97 transitions, 512 flow. Second operand has 19 states, 19 states have (on average 29.210526315789473) internal successors, (555), 19 states have internal predecessors, (555), 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 10:25:30,003 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:25:30,003 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 80 [2024-11-10 10:25:30,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:25:31,883 INFO L124 PetriNetUnfolderBase]: 120/533 cut-off events. [2024-11-10 10:25:31,883 INFO L125 PetriNetUnfolderBase]: For 3657/3657 co-relation queries the response was YES. [2024-11-10 10:25:31,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1306 conditions, 533 events. 120/533 cut-off events. For 3657/3657 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1888 event pairs, 95 based on Foata normal form. 10/526 useless extension candidates. Maximal degree in co-relation 1276. Up to 235 conditions per place. [2024-11-10 10:25:31,887 INFO L140 encePairwiseOnDemand]: 74/80 looper letters, 41 selfloop transitions, 80 changer transitions 0/148 dead transitions. [2024-11-10 10:25:31,887 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 148 transitions, 1375 flow [2024-11-10 10:25:31,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2024-11-10 10:25:31,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2024-11-10 10:25:31,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 2129 transitions. [2024-11-10 10:25:31,892 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.35962837837837835 [2024-11-10 10:25:31,892 INFO L175 Difference]: Start difference. First operand has 123 places, 97 transitions, 512 flow. Second operand 74 states and 2129 transitions. [2024-11-10 10:25:31,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 148 transitions, 1375 flow [2024-11-10 10:25:31,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 148 transitions, 1141 flow, removed 85 selfloop flow, removed 6 redundant places. [2024-11-10 10:25:31,905 INFO L231 Difference]: Finished difference. Result has 200 places, 140 transitions, 871 flow [2024-11-10 10:25:31,905 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=74, PETRI_FLOW=871, PETRI_PLACES=200, PETRI_TRANSITIONS=140} [2024-11-10 10:25:31,906 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 141 predicate places. [2024-11-10 10:25:31,906 INFO L471 AbstractCegarLoop]: Abstraction has has 200 places, 140 transitions, 871 flow [2024-11-10 10:25:31,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 29.210526315789473) internal successors, (555), 19 states have internal predecessors, (555), 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 10:25:31,906 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:25:31,906 INFO L204 CegarLoopForPetriNet]: trace histogram [72, 66, 7, 6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-10 10:25:31,922 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-10 10:25:32,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 10:25:32,108 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 10:25:32,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:25:32,108 INFO L85 PathProgramCache]: Analyzing trace with hash -329244626, now seen corresponding path program 4 times [2024-11-10 10:25:32,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:25:32,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393937962] [2024-11-10 10:25:32,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:25:32,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:25:33,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:25:35,276 INFO L134 CoverageAnalysis]: Checked inductivity of 5172 backedges. 1452 proven. 132 refuted. 0 times theorem prover too weak. 3588 trivial. 0 not checked. [2024-11-10 10:25:35,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:25:35,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393937962] [2024-11-10 10:25:35,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393937962] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 10:25:35,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [909646994] [2024-11-10 10:25:35,279 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-10 10:25:35,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 10:25:35,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:25:35,280 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) [2024-11-10 10:25:35,290 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-10 10:25:37,387 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-10 10:25:37,388 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 10:25:37,430 INFO L255 TraceCheckSpWp]: Trace formula consists of 6336 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-10 10:25:37,440 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 10:25:37,640 INFO L134 CoverageAnalysis]: Checked inductivity of 5172 backedges. 0 proven. 4377 refuted. 0 times theorem prover too weak. 795 trivial. 0 not checked. [2024-11-10 10:25:37,640 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 10:25:37,901 INFO L134 CoverageAnalysis]: Checked inductivity of 5172 backedges. 0 proven. 4377 refuted. 0 times theorem prover too weak. 795 trivial. 0 not checked. [2024-11-10 10:25:37,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [909646994] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 10:25:37,902 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 10:25:37,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 8, 8] total 24 [2024-11-10 10:25:37,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945937335] [2024-11-10 10:25:37,902 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 10:25:37,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-10 10:25:37,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:25:37,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-10 10:25:37,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2024-11-10 10:25:37,906 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 80 [2024-11-10 10:25:37,907 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 140 transitions, 871 flow. Second operand has 24 states, 24 states have (on average 29.625) internal successors, (711), 24 states have internal predecessors, (711), 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 10:25:37,907 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:25:37,907 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 80 [2024-11-10 10:25:37,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:25:41,094 INFO L124 PetriNetUnfolderBase]: 124/665 cut-off events. [2024-11-10 10:25:41,095 INFO L125 PetriNetUnfolderBase]: For 9386/9386 co-relation queries the response was YES. [2024-11-10 10:25:41,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1903 conditions, 665 events. 124/665 cut-off events. For 9386/9386 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1892 event pairs, 95 based on Foata normal form. 14/662 useless extension candidates. Maximal degree in co-relation 1863. Up to 235 conditions per place. [2024-11-10 10:25:41,099 INFO L140 encePairwiseOnDemand]: 74/80 looper letters, 49 selfloop transitions, 142 changer transitions 0/218 dead transitions. [2024-11-10 10:25:41,099 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 218 transitions, 2425 flow [2024-11-10 10:25:41,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2024-11-10 10:25:41,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2024-11-10 10:25:41,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 3769 transitions. [2024-11-10 10:25:41,110 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3569128787878788 [2024-11-10 10:25:41,110 INFO L175 Difference]: Start difference. First operand has 200 places, 140 transitions, 871 flow. Second operand 132 states and 3769 transitions. [2024-11-10 10:25:41,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 218 transitions, 2425 flow [2024-11-10 10:25:41,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 218 transitions, 2152 flow, removed 36 selfloop flow, removed 30 redundant places. [2024-11-10 10:25:41,129 INFO L231 Difference]: Finished difference. Result has 315 places, 202 transitions, 1518 flow [2024-11-10 10:25:41,129 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=710, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=80, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=132, PETRI_FLOW=1518, PETRI_PLACES=315, PETRI_TRANSITIONS=202} [2024-11-10 10:25:41,130 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 256 predicate places. [2024-11-10 10:25:41,131 INFO L471 AbstractCegarLoop]: Abstraction has has 315 places, 202 transitions, 1518 flow [2024-11-10 10:25:41,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 29.625) internal successors, (711), 24 states have internal predecessors, (711), 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 10:25:41,133 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:25:41,133 INFO L204 CegarLoopForPetriNet]: trace histogram [130, 120, 11, 10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-10 10:25:41,161 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-10 10:25:41,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 10:25:41,334 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 10:25:41,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:25:41,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1240531378, now seen corresponding path program 5 times [2024-11-10 10:25:41,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:25:41,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009932962] [2024-11-10 10:25:41,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:25:41,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:25:43,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:25:46,478 INFO L134 CoverageAnalysis]: Checked inductivity of 16928 backedges. 3062 proven. 156 refuted. 0 times theorem prover too weak. 13710 trivial. 0 not checked. [2024-11-10 10:25:46,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:25:46,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009932962] [2024-11-10 10:25:46,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009932962] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 10:25:46,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2010499981] [2024-11-10 10:25:46,481 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-10 10:25:46,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 10:25:46,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:25:46,486 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) [2024-11-10 10:25:46,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process