./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash da9f6c449f4da806b6a3bb0aaf2c3c9171ea9b71d075f7e8b1d9543f656f7b8b --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 14:07:00,418 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 14:07:00,472 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-08 14:07:00,478 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 14:07:00,478 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 14:07:00,500 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 14:07:00,501 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 14:07:00,501 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 14:07:00,501 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 14:07:00,501 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 14:07:00,504 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 14:07:00,505 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 14:07:00,505 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 14:07:00,505 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 14:07:00,505 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 14:07:00,505 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 14:07:00,505 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 14:07:00,505 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 14:07:00,505 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 14:07:00,505 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 14:07:00,505 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 14:07:00,505 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 14:07:00,505 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 14:07:00,505 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 14:07:00,505 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 14:07:00,505 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 14:07:00,506 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 14:07:00,506 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 14:07:00,506 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 14:07:00,506 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 14:07:00,506 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 14:07:00,506 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 14:07:00,506 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 14:07:00,506 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 14:07:00,506 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:07:00,506 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 14:07:00,506 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 14:07:00,506 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 14:07:00,506 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 14:07:00,506 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 14:07:00,506 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 14:07:00,506 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 14:07:00,506 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 14:07:00,506 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 14:07:00,506 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 14:07:00,506 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da9f6c449f4da806b6a3bb0aaf2c3c9171ea9b71d075f7e8b1d9543f656f7b8b [2025-02-08 14:07:00,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 14:07:00,745 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 14:07:00,746 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 14:07:00,747 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 14:07:00,747 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 14:07:00,748 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i [2025-02-08 14:07:01,837 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e54fe45f2/4fb74d3a59154eaebdfdf812776038a5/FLAGf8034f6dd [2025-02-08 14:07:02,198 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 14:07:02,200 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i [2025-02-08 14:07:02,216 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e54fe45f2/4fb74d3a59154eaebdfdf812776038a5/FLAGf8034f6dd [2025-02-08 14:07:02,408 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e54fe45f2/4fb74d3a59154eaebdfdf812776038a5 [2025-02-08 14:07:02,411 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 14:07:02,413 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 14:07:02,414 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 14:07:02,414 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 14:07:02,417 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 14:07:02,419 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:07:02" (1/1) ... [2025-02-08 14:07:02,420 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@158ae3c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:02, skipping insertion in model container [2025-02-08 14:07:02,420 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:07:02" (1/1) ... [2025-02-08 14:07:02,450 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 14:07:02,768 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:07:02,789 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 14:07:02,849 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:07:02,899 INFO L204 MainTranslator]: Completed translation [2025-02-08 14:07:02,900 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:02 WrapperNode [2025-02-08 14:07:02,901 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 14:07:02,902 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 14:07:02,903 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 14:07:02,903 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 14:07:02,908 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:02" (1/1) ... [2025-02-08 14:07:02,926 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:02" (1/1) ... [2025-02-08 14:07:02,962 INFO L138 Inliner]: procedures = 280, calls = 97, calls flagged for inlining = 11, calls inlined = 12, statements flattened = 365 [2025-02-08 14:07:02,966 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 14:07:02,966 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 14:07:02,967 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 14:07:02,967 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 14:07:02,974 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:02" (1/1) ... [2025-02-08 14:07:02,974 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:02" (1/1) ... [2025-02-08 14:07:02,980 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:02" (1/1) ... [2025-02-08 14:07:03,013 INFO L175 MemorySlicer]: Split 51 memory accesses to 9 slices as follows [2, 5, 5, 5, 5, 23, 2, 2, 2]. 45 percent of accesses are in the largest equivalence class. The 22 initializations are split as follows [2, 5, 5, 5, 5, 0, 0, 0, 0]. The 15 writes are split as follows [0, 0, 0, 0, 0, 12, 1, 1, 1]. [2025-02-08 14:07:03,014 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:02" (1/1) ... [2025-02-08 14:07:03,014 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:02" (1/1) ... [2025-02-08 14:07:03,032 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:02" (1/1) ... [2025-02-08 14:07:03,038 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:02" (1/1) ... [2025-02-08 14:07:03,040 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:02" (1/1) ... [2025-02-08 14:07:03,046 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:02" (1/1) ... [2025-02-08 14:07:03,053 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 14:07:03,054 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 14:07:03,054 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 14:07:03,054 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 14:07:03,060 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:02" (1/1) ... [2025-02-08 14:07:03,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:07:03,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:07:03,099 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 14:07:03,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 14:07:03,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 14:07:03,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 14:07:03,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-08 14:07:03,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-08 14:07:03,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-08 14:07:03,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-08 14:07:03,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-02-08 14:07:03,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-02-08 14:07:03,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-02-08 14:07:03,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2025-02-08 14:07:03,118 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2025-02-08 14:07:03,118 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2025-02-08 14:07:03,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 14:07:03,118 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-08 14:07:03,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 14:07:03,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 14:07:03,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-08 14:07:03,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-08 14:07:03,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-08 14:07:03,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-08 14:07:03,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-02-08 14:07:03,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-02-08 14:07:03,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-02-08 14:07:03,119 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2025-02-08 14:07:03,119 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2025-02-08 14:07:03,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 14:07:03,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 14:07:03,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-08 14:07:03,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-08 14:07:03,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-08 14:07:03,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-08 14:07:03,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-02-08 14:07:03,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-02-08 14:07:03,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-02-08 14:07:03,122 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-08 14:07:03,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 14:07:03,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 14:07:03,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 14:07:03,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 14:07:03,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-08 14:07:03,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-08 14:07:03,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-08 14:07:03,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-08 14:07:03,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-02-08 14:07:03,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-02-08 14:07:03,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2025-02-08 14:07:03,123 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2025-02-08 14:07:03,123 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2025-02-08 14:07:03,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 14:07:03,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 14:07:03,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-08 14:07:03,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-08 14:07:03,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-08 14:07:03,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-08 14:07:03,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-02-08 14:07:03,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-02-08 14:07:03,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-02-08 14:07:03,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 14:07:03,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 14:07:03,124 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 14:07:03,302 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 14:07:03,304 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 14:07:03,757 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1053: havoc main_~#t1_ids~0#1.base, main_~#t1_ids~0#1.offset; [2025-02-08 14:07:03,757 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1053-1: SUMMARY for call ULTIMATE.dealloc(main_~#t1_ids~0#1.base, main_~#t1_ids~0#1.offset); srcloc: null [2025-02-08 14:07:03,757 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1054: havoc main_~#t2_ids~0#1.base, main_~#t2_ids~0#1.offset; [2025-02-08 14:07:03,757 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1054-1: SUMMARY for call ULTIMATE.dealloc(main_~#t2_ids~0#1.base, main_~#t2_ids~0#1.offset); srcloc: null [2025-02-08 14:07:03,757 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1055: havoc main_~#t3_ids~0#1.base, main_~#t3_ids~0#1.offset; [2025-02-08 14:07:03,757 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1055-1: SUMMARY for call ULTIMATE.dealloc(main_~#t3_ids~0#1.base, main_~#t3_ids~0#1.offset); srcloc: null [2025-02-08 14:07:03,758 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 14:07:03,758 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 14:07:04,039 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 14:07:04,039 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 14:07:04,039 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:07:04 BoogieIcfgContainer [2025-02-08 14:07:04,040 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 14:07:04,041 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 14:07:04,041 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 14:07:04,045 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 14:07:04,045 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 02:07:02" (1/3) ... [2025-02-08 14:07:04,046 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@426bf4ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:07:04, skipping insertion in model container [2025-02-08 14:07:04,046 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:02" (2/3) ... [2025-02-08 14:07:04,046 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@426bf4ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:07:04, skipping insertion in model container [2025-02-08 14:07:04,046 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:07:04" (3/3) ... [2025-02-08 14:07:04,047 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_85-list2_racefree.i [2025-02-08 14:07:04,060 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 14:07:04,061 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_85-list2_racefree.i that has 4 procedures, 136 locations, 1 initial locations, 18 loop locations, and 20 error locations. [2025-02-08 14:07:04,061 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 14:07:04,132 INFO L143 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2025-02-08 14:07:04,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 145 places, 173 transitions, 385 flow [2025-02-08 14:07:04,256 INFO L124 PetriNetUnfolderBase]: 114/602 cut-off events. [2025-02-08 14:07:04,258 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2025-02-08 14:07:04,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 656 conditions, 602 events. 114/602 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 3849 event pairs, 0 based on Foata normal form. 0/406 useless extension candidates. Maximal degree in co-relation 309. Up to 16 conditions per place. [2025-02-08 14:07:04,265 INFO L82 GeneralOperation]: Start removeDead. Operand has 145 places, 173 transitions, 385 flow [2025-02-08 14:07:04,272 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 145 places, 173 transitions, 385 flow [2025-02-08 14:07:04,277 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 14:07:04,284 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;@5b4ada76, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 14:07:04,284 INFO L334 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2025-02-08 14:07:04,289 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 14:07:04,289 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2025-02-08 14:07:04,290 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:07:04,290 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:04,290 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-02-08 14:07:04,290 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2025-02-08 14:07:04,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:04,294 INFO L85 PathProgramCache]: Analyzing trace with hash 877171134, now seen corresponding path program 1 times [2025-02-08 14:07:04,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:04,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005447529] [2025-02-08 14:07:04,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:04,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:04,374 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-08 14:07:04,397 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-08 14:07:04,397 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:04,397 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:04,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:07:04,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:04,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005447529] [2025-02-08 14:07:04,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005447529] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:04,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:04,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:07:04,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398924177] [2025-02-08 14:07:04,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:04,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:07:04,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:04,624 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:07:04,624 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:07:04,641 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 173 [2025-02-08 14:07:04,643 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 173 transitions, 385 flow. Second operand has 4 states, 4 states have (on average 63.25) internal successors, (253), 4 states have internal predecessors, (253), 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) [2025-02-08 14:07:04,645 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:04,645 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 173 [2025-02-08 14:07:04,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:19,033 INFO L124 PetriNetUnfolderBase]: 129279/232858 cut-off events. [2025-02-08 14:07:19,033 INFO L125 PetriNetUnfolderBase]: For 7556/7556 co-relation queries the response was YES. [2025-02-08 14:07:19,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 411626 conditions, 232858 events. 129279/232858 cut-off events. For 7556/7556 co-relation queries the response was YES. Maximal size of possible extension queue 4228. Compared 2410098 event pairs, 84624 based on Foata normal form. 33162/231546 useless extension candidates. Maximal degree in co-relation 358148. Up to 175299 conditions per place. [2025-02-08 14:07:20,330 INFO L140 encePairwiseOnDemand]: 145/173 looper letters, 95 selfloop transitions, 3 changer transitions 0/160 dead transitions. [2025-02-08 14:07:20,331 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 160 transitions, 555 flow [2025-02-08 14:07:20,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:07:20,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:07:20,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 371 transitions. [2025-02-08 14:07:20,341 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5361271676300579 [2025-02-08 14:07:20,342 INFO L175 Difference]: Start difference. First operand has 145 places, 173 transitions, 385 flow. Second operand 4 states and 371 transitions. [2025-02-08 14:07:20,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 160 transitions, 555 flow [2025-02-08 14:07:20,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 160 transitions, 555 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 14:07:20,393 INFO L231 Difference]: Finished difference. Result has 147 places, 149 transitions, 347 flow [2025-02-08 14:07:20,395 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=337, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=347, PETRI_PLACES=147, PETRI_TRANSITIONS=149} [2025-02-08 14:07:20,397 INFO L279 CegarLoopForPetriNet]: 145 programPoint places, 2 predicate places. [2025-02-08 14:07:20,397 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 149 transitions, 347 flow [2025-02-08 14:07:20,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 63.25) internal successors, (253), 4 states have internal predecessors, (253), 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) [2025-02-08 14:07:20,398 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:20,398 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:20,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 14:07:20,398 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2025-02-08 14:07:20,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:20,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1225021552, now seen corresponding path program 1 times [2025-02-08 14:07:20,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:20,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910388554] [2025-02-08 14:07:20,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:20,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:20,430 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-08 14:07:20,474 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-08 14:07:20,475 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:20,475 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:07:20,475 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:07:20,480 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-08 14:07:20,515 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-08 14:07:20,515 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:20,515 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:07:20,541 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:07:20,541 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 14:07:20,544 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2025-02-08 14:07:20,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 31 remaining) [2025-02-08 14:07:20,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 31 remaining) [2025-02-08 14:07:20,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 31 remaining) [2025-02-08 14:07:20,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 31 remaining) [2025-02-08 14:07:20,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 31 remaining) [2025-02-08 14:07:20,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 31 remaining) [2025-02-08 14:07:20,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 31 remaining) [2025-02-08 14:07:20,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 31 remaining) [2025-02-08 14:07:20,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 31 remaining) [2025-02-08 14:07:20,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 31 remaining) [2025-02-08 14:07:20,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 31 remaining) [2025-02-08 14:07:20,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 31 remaining) [2025-02-08 14:07:20,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 31 remaining) [2025-02-08 14:07:20,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 31 remaining) [2025-02-08 14:07:20,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 31 remaining) [2025-02-08 14:07:20,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 31 remaining) [2025-02-08 14:07:20,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 31 remaining) [2025-02-08 14:07:20,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 31 remaining) [2025-02-08 14:07:20,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 31 remaining) [2025-02-08 14:07:20,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 31 remaining) [2025-02-08 14:07:20,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 31 remaining) [2025-02-08 14:07:20,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 31 remaining) [2025-02-08 14:07:20,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 31 remaining) [2025-02-08 14:07:20,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 31 remaining) [2025-02-08 14:07:20,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 31 remaining) [2025-02-08 14:07:20,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 31 remaining) [2025-02-08 14:07:20,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 31 remaining) [2025-02-08 14:07:20,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 31 remaining) [2025-02-08 14:07:20,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 31 remaining) [2025-02-08 14:07:20,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 31 remaining) [2025-02-08 14:07:20,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 14:07:20,554 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-08 14:07:20,556 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-08 14:07:20,556 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-02-08 14:07:20,655 INFO L143 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2025-02-08 14:07:20,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 243 places, 300 transitions, 684 flow [2025-02-08 14:07:21,181 INFO L124 PetriNetUnfolderBase]: 851/3483 cut-off events. [2025-02-08 14:07:21,181 INFO L125 PetriNetUnfolderBase]: For 602/647 co-relation queries the response was YES. [2025-02-08 14:07:21,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4131 conditions, 3483 events. 851/3483 cut-off events. For 602/647 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 31888 event pairs, 22 based on Foata normal form. 0/2402 useless extension candidates. Maximal degree in co-relation 2233. Up to 192 conditions per place. [2025-02-08 14:07:21,218 INFO L82 GeneralOperation]: Start removeDead. Operand has 243 places, 300 transitions, 684 flow [2025-02-08 14:07:21,249 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 243 places, 300 transitions, 684 flow [2025-02-08 14:07:21,251 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 14:07:21,251 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;@5b4ada76, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 14:07:21,251 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2025-02-08 14:07:21,253 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 14:07:21,253 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2025-02-08 14:07:21,253 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:07:21,253 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:21,253 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-02-08 14:07:21,254 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:07:21,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:21,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1157849241, now seen corresponding path program 1 times [2025-02-08 14:07:21,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:21,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603970552] [2025-02-08 14:07:21,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:21,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:21,269 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-08 14:07:21,276 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-08 14:07:21,277 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:21,277 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:21,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:07:21,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:21,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603970552] [2025-02-08 14:07:21,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603970552] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:21,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:21,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:07:21,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221363260] [2025-02-08 14:07:21,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:21,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:07:21,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:21,365 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:07:21,365 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:07:21,372 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 300 [2025-02-08 14:07:21,372 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 300 transitions, 684 flow. Second operand has 4 states, 4 states have (on average 101.25) internal successors, (405), 4 states have internal predecessors, (405), 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) [2025-02-08 14:07:21,372 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:21,372 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 300 [2025-02-08 14:07:21,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand