./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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/weaver/parallel-parallel-sum-2.wvr.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash aee5edffc06a346ddce4a9cfa75b4213bee8ccd3009aa5307dc09037d26d7f28 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 01:15:39,543 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 01:15:39,615 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-08 01:15:39,624 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 01:15:39,624 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 01:15:39,651 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 01:15:39,653 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 01:15:39,653 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 01:15:39,653 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 01:15:39,653 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 01:15:39,654 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 01:15:39,654 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 01:15:39,655 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 01:15:39,655 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 01:15:39,655 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 01:15:39,656 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 01:15:39,656 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 01:15:39,656 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 01:15:39,656 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 01:15:39,656 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 01:15:39,656 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 01:15:39,656 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 01:15:39,657 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 01:15:39,657 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 01:15:39,657 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 01:15:39,657 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 01:15:39,657 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 01:15:39,657 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 01:15:39,657 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 01:15:39,657 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 01:15:39,657 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 01:15:39,658 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 01:15:39,658 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:15:39,658 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 01:15:39,658 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 01:15:39,659 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 01:15:39,659 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 01:15:39,659 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 01:15:39,659 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 01:15:39,659 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 01:15:39,659 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 01:15:39,659 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 01:15:39,659 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 01:15:39,659 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 ! 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 -> aee5edffc06a346ddce4a9cfa75b4213bee8ccd3009aa5307dc09037d26d7f28 [2025-02-08 01:15:39,936 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 01:15:39,946 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 01:15:39,950 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 01:15:39,951 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 01:15:39,951 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 01:15:39,953 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c [2025-02-08 01:15:41,253 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f697fc469/0dfb7e70b9d044709acf44b81a73f52e/FLAGfa0a97fb6 [2025-02-08 01:15:41,478 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 01:15:41,479 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c [2025-02-08 01:15:41,487 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f697fc469/0dfb7e70b9d044709acf44b81a73f52e/FLAGfa0a97fb6 [2025-02-08 01:15:41,501 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f697fc469/0dfb7e70b9d044709acf44b81a73f52e [2025-02-08 01:15:41,504 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 01:15:41,505 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 01:15:41,507 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 01:15:41,507 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 01:15:41,511 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 01:15:41,512 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:15:41" (1/1) ... [2025-02-08 01:15:41,513 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e5c4ccd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:15:41, skipping insertion in model container [2025-02-08 01:15:41,513 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:15:41" (1/1) ... [2025-02-08 01:15:41,533 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 01:15:41,690 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c[4303,4316] [2025-02-08 01:15:41,704 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:15:41,717 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 01:15:41,738 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c[4303,4316] [2025-02-08 01:15:41,743 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:15:41,755 INFO L204 MainTranslator]: Completed translation [2025-02-08 01:15:41,756 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:15:41 WrapperNode [2025-02-08 01:15:41,756 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 01:15:41,757 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 01:15:41,757 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 01:15:41,757 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 01:15:41,761 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:15:41" (1/1) ... [2025-02-08 01:15:41,768 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:15:41" (1/1) ... [2025-02-08 01:15:41,793 INFO L138 Inliner]: procedures = 28, calls = 58, calls flagged for inlining = 22, calls inlined = 32, statements flattened = 370 [2025-02-08 01:15:41,793 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 01:15:41,794 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 01:15:41,794 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 01:15:41,794 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 01:15:41,802 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:15:41" (1/1) ... [2025-02-08 01:15:41,802 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:15:41" (1/1) ... [2025-02-08 01:15:41,807 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:15:41" (1/1) ... [2025-02-08 01:15:41,831 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2025-02-08 01:15:41,832 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:15:41" (1/1) ... [2025-02-08 01:15:41,832 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:15:41" (1/1) ... [2025-02-08 01:15:41,848 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:15:41" (1/1) ... [2025-02-08 01:15:41,849 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:15:41" (1/1) ... [2025-02-08 01:15:41,853 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:15:41" (1/1) ... [2025-02-08 01:15:41,854 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:15:41" (1/1) ... [2025-02-08 01:15:41,858 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 01:15:41,859 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 01:15:41,859 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 01:15:41,859 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 01:15:41,860 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:15:41" (1/1) ... [2025-02-08 01:15:41,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:15:41,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:15:41,888 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 01:15:41,891 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 01:15:41,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 01:15:41,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 01:15:41,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 01:15:41,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 01:15:41,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 01:15:41,912 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-08 01:15:41,912 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-08 01:15:41,912 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-08 01:15:41,912 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-08 01:15:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-08 01:15:41,913 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-08 01:15:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-02-08 01:15:41,913 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-02-08 01:15:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 01:15:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 01:15:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2025-02-08 01:15:41,913 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2025-02-08 01:15:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2025-02-08 01:15:41,913 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2025-02-08 01:15:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-08 01:15:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-08 01:15:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 01:15:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 01:15:41,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 01:15:41,916 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 01:15:42,052 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 01:15:42,054 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 01:15:42,203 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L56: [2025-02-08 01:15:42,204 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L55: havoc #t~ret4#1; [2025-02-08 01:15:42,204 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L55-1: ~s11~0 := #t~ret4#1; [2025-02-08 01:15:42,204 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L55-2: assume { :end_inline_plus } true;assume -2147483648 <= #t~ret4#1 && #t~ret4#1 <= 2147483647; [2025-02-08 01:15:42,204 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L55-3: havoc plus_#in~a#1, plus_#in~b#1; [2025-02-08 01:15:42,204 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L55-4: havoc plus_~a#1, plus_~b#1; [2025-02-08 01:15:42,206 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L55-5: #t~ret4#1 := plus_#res#1; [2025-02-08 01:15:42,274 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L70: havoc #t~ret8#1; [2025-02-08 01:15:42,275 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L70-1: ~s21~0 := #t~ret8#1; [2025-02-08 01:15:42,275 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L70-2: assume { :end_inline_plus } true;assume -2147483648 <= #t~ret8#1 && #t~ret8#1 <= 2147483647; [2025-02-08 01:15:42,275 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L70-3: havoc plus_#in~a#1, plus_#in~b#1; [2025-02-08 01:15:42,275 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L70-4: havoc plus_~a#1, plus_~b#1; [2025-02-08 01:15:42,276 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L70-5: #t~ret8#1 := plus_#res#1; [2025-02-08 01:15:42,276 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L71: [2025-02-08 01:15:42,375 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L101-4: havoc plus_~a#1, plus_~b#1; [2025-02-08 01:15:42,375 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L101-5: #t~ret17#1 := plus_#res#1; [2025-02-08 01:15:42,375 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L102: [2025-02-08 01:15:42,375 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L101: havoc #t~ret17#1; [2025-02-08 01:15:42,375 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L101-1: ~s12~0 := #t~ret17#1; [2025-02-08 01:15:42,375 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L101-2: assume { :end_inline_plus } true;assume -2147483648 <= #t~ret17#1 && #t~ret17#1 <= 2147483647; [2025-02-08 01:15:42,376 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L101-3: havoc plus_#in~a#1, plus_#in~b#1; [2025-02-08 01:15:42,424 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L116: havoc #t~ret21#1; [2025-02-08 01:15:42,425 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L116-1: ~s22~0 := #t~ret21#1; [2025-02-08 01:15:42,425 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L116-2: assume { :end_inline_plus } true;assume -2147483648 <= #t~ret21#1 && #t~ret21#1 <= 2147483647; [2025-02-08 01:15:42,425 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L116-3: havoc plus_#in~a#1, plus_#in~b#1; [2025-02-08 01:15:42,425 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L116-4: havoc plus_~a#1, plus_~b#1; [2025-02-08 01:15:42,425 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L116-5: #t~ret21#1 := plus_#res#1; [2025-02-08 01:15:42,425 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L117: [2025-02-08 01:15:42,547 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 01:15:42,547 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 01:15:42,878 WARN L149 AtomicBlockAnalyzer]: Unexpected successor node of atomic block begin: L185 is not an error location. [2025-02-08 01:15:42,879 WARN L149 AtomicBlockAnalyzer]: Unexpected successor node of atomic block begin: L185 is not an error location. [2025-02-08 01:15:42,879 WARN L149 AtomicBlockAnalyzer]: Unexpected successor node of atomic block begin: L185 is not an error location. [2025-02-08 01:15:42,879 WARN L149 AtomicBlockAnalyzer]: Unexpected successor node of atomic block begin: L185 is not an error location. [2025-02-08 01:15:42,880 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 01:15:42,880 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 01:15:42,880 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:15:42 BoogieIcfgContainer [2025-02-08 01:15:42,880 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 01:15:42,883 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 01:15:42,883 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 01:15:42,887 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 01:15:42,887 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 01:15:41" (1/3) ... [2025-02-08 01:15:42,887 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56b23291 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:15:42, skipping insertion in model container [2025-02-08 01:15:42,887 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:15:41" (2/3) ... [2025-02-08 01:15:42,888 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56b23291 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:15:42, skipping insertion in model container [2025-02-08 01:15:42,888 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:15:42" (3/3) ... [2025-02-08 01:15:42,889 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-2.wvr.c [2025-02-08 01:15:42,902 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 01:15:42,904 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-parallel-sum-2.wvr.c that has 7 procedures, 66 locations, 1 initial locations, 5 loop locations, and 1 error locations. [2025-02-08 01:15:42,904 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 01:15:42,999 INFO L143 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2025-02-08 01:15:43,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 84 transitions, 234 flow [2025-02-08 01:15:43,080 INFO L124 PetriNetUnfolderBase]: 9/68 cut-off events. [2025-02-08 01:15:43,082 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-02-08 01:15:43,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 68 events. 9/68 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 183 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 77. Up to 3 conditions per place. [2025-02-08 01:15:43,089 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 84 transitions, 234 flow [2025-02-08 01:15:43,093 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 67 transitions, 182 flow [2025-02-08 01:15:43,100 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 01:15:43,110 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;@60977a83, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 01:15:43,111 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2025-02-08 01:15:43,130 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 01:15:43,130 INFO L124 PetriNetUnfolderBase]: 9/66 cut-off events. [2025-02-08 01:15:43,131 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-02-08 01:15:43,131 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:15:43,132 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:15:43,132 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-08 01:15:43,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:15:43,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1029683928, now seen corresponding path program 1 times [2025-02-08 01:15:43,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:15:43,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098676001] [2025-02-08 01:15:43,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:15:43,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:15:43,232 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-02-08 01:15:43,280 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-02-08 01:15:43,281 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:15:43,281 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:15:43,405 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 01:15:43,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:15:43,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098676001] [2025-02-08 01:15:43,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098676001] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:15:43,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:15:43,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 01:15:43,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624417001] [2025-02-08 01:15:43,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:15:43,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-08 01:15:43,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:15:43,439 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-08 01:15:43,440 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 01:15:43,441 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 88 [2025-02-08 01:15:43,445 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 67 transitions, 182 flow. Second operand has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 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 01:15:43,446 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:15:43,446 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 88 [2025-02-08 01:15:43,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:15:52,520 INFO L124 PetriNetUnfolderBase]: 120187/152003 cut-off events. [2025-02-08 01:15:52,520 INFO L125 PetriNetUnfolderBase]: For 14596/14596 co-relation queries the response was YES. [2025-02-08 01:15:52,803 INFO L83 FinitePrefix]: Finished finitePrefix Result has 320301 conditions, 152003 events. 120187/152003 cut-off events. For 14596/14596 co-relation queries the response was YES. Maximal size of possible extension queue 4337. Compared 831868 event pairs, 116162 based on Foata normal form. 0/132192 useless extension candidates. Maximal degree in co-relation 319330. Up to 151817 conditions per place. [2025-02-08 01:15:52,969 INFO L140 encePairwiseOnDemand]: 84/88 looper letters, 46 selfloop transitions, 0 changer transitions 12/63 dead transitions. [2025-02-08 01:15:52,970 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 63 transitions, 290 flow [2025-02-08 01:15:52,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-08 01:15:52,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-02-08 01:15:52,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 84 transitions. [2025-02-08 01:15:52,983 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4772727272727273 [2025-02-08 01:15:52,984 INFO L175 Difference]: Start difference. First operand has 77 places, 67 transitions, 182 flow. Second operand 2 states and 84 transitions. [2025-02-08 01:15:52,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 63 transitions, 290 flow [2025-02-08 01:15:53,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 63 transitions, 258 flow, removed 0 selfloop flow, removed 12 redundant places. [2025-02-08 01:15:53,340 INFO L231 Difference]: Finished difference. Result has 66 places, 51 transitions, 118 flow [2025-02-08 01:15:53,342 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=118, PETRI_PLACES=66, PETRI_TRANSITIONS=51} [2025-02-08 01:15:53,346 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -11 predicate places. [2025-02-08 01:15:53,346 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 51 transitions, 118 flow [2025-02-08 01:15:53,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 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 01:15:53,346 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:15:53,347 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:15:53,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 01:15:53,347 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-08 01:15:53,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:15:53,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1655685272, now seen corresponding path program 1 times [2025-02-08 01:15:53,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:15:53,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612126357] [2025-02-08 01:15:53,348 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:15:53,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:15:53,367 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-02-08 01:15:53,412 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-02-08 01:15:53,412 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:15:53,413 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:15:53,909 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 01:15:53,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:15:53,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612126357] [2025-02-08 01:15:53,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612126357] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:15:53,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:15:53,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 01:15:53,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018898206] [2025-02-08 01:15:53,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:15:53,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 01:15:53,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:15:53,914 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 01:15:53,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 01:15:53,914 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 88 [2025-02-08 01:15:53,915 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 51 transitions, 118 flow. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 01:15:53,915 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:15:53,915 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 88 [2025-02-08 01:15:53,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:15:56,065 INFO L124 PetriNetUnfolderBase]: 33151/43378 cut-off events. [2025-02-08 01:15:56,065 INFO L125 PetriNetUnfolderBase]: For 1282/1282 co-relation queries the response was YES. [2025-02-08 01:15:56,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88576 conditions, 43378 events. 33151/43378 cut-off events. For 1282/1282 co-relation queries the response was YES. Maximal size of possible extension queue 1254. Compared 229033 event pairs, 31155 based on Foata normal form. 102/41392 useless extension candidates. Maximal degree in co-relation 88573. Up to 22145 conditions per place. [2025-02-08 01:15:56,197 INFO L140 encePairwiseOnDemand]: 84/88 looper letters, 45 selfloop transitions, 2 changer transitions 38/90 dead transitions. [2025-02-08 01:15:56,198 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 90 transitions, 380 flow [2025-02-08 01:15:56,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 01:15:56,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 01:15:56,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 130 transitions. [2025-02-08 01:15:56,199 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3693181818181818 [2025-02-08 01:15:56,199 INFO L175 Difference]: Start difference. First operand has 66 places, 51 transitions, 118 flow. Second operand 4 states and 130 transitions. [2025-02-08 01:15:56,199 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 90 transitions, 380 flow [2025-02-08 01:15:56,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 90 transitions, 380 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 01:15:56,203 INFO L231 Difference]: Finished difference. Result has 59 places, 52 transitions, 132 flow [2025-02-08 01:15:56,203 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=132, PETRI_PLACES=59, PETRI_TRANSITIONS=52} [2025-02-08 01:15:56,204 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -18 predicate places. [2025-02-08 01:15:56,204 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 52 transitions, 132 flow [2025-02-08 01:15:56,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 01:15:56,205 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:15:56,205 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:15:56,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 01:15:56,205 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-08 01:15:56,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:15:56,206 INFO L85 PathProgramCache]: Analyzing trace with hash -681281060, now seen corresponding path program 1 times [2025-02-08 01:15:56,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:15:56,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271490783] [2025-02-08 01:15:56,206 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:15:56,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:15:56,227 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-02-08 01:15:56,264 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-02-08 01:15:56,266 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:15:56,267 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:15:56,601 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 01:15:56,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:15:56,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271490783] [2025-02-08 01:15:56,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271490783] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:15:56,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:15:56,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 01:15:56,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108913745] [2025-02-08 01:15:56,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:15:56,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 01:15:56,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:15:56,603 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 01:15:56,604 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-08 01:15:56,605 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 88 [2025-02-08 01:15:56,605 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 52 transitions, 132 flow. Second operand has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 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 01:15:56,605 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:15:56,605 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 88 [2025-02-08 01:15:56,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:15:57,807 INFO L124 PetriNetUnfolderBase]: 16995/22300 cut-off events. [2025-02-08 01:15:57,807 INFO L125 PetriNetUnfolderBase]: For 667/667 co-relation queries the response was YES. [2025-02-08 01:15:57,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45640 conditions, 22300 events. 16995/22300 cut-off events. For 667/667 co-relation queries the response was YES. Maximal size of possible extension queue 646. Compared 108049 event pairs, 15415 based on Foata normal form. 1/21194 useless extension candidates. Maximal degree in co-relation 45634. Up to 21302 conditions per place. [2025-02-08 01:15:57,869 INFO L140 encePairwiseOnDemand]: 83/88 looper letters, 46 selfloop transitions, 3 changer transitions 24/78 dead transitions. [2025-02-08 01:15:57,869 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 78 transitions, 339 flow [2025-02-08 01:15:57,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 01:15:57,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 01:15:57,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 139 transitions. [2025-02-08 01:15:57,873 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.26325757575757575 [2025-02-08 01:15:57,873 INFO L175 Difference]: Start difference. First operand has 59 places, 52 transitions, 132 flow. Second operand 6 states and 139 transitions. [2025-02-08 01:15:57,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 78 transitions, 339 flow [2025-02-08 01:15:57,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 78 transitions, 333 flow, removed 2 selfloop flow, removed 2 redundant places. [2025-02-08 01:15:57,880 INFO L231 Difference]: Finished difference. Result has 63 places, 52 transitions, 137 flow [2025-02-08 01:15:57,880 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=137, PETRI_PLACES=63, PETRI_TRANSITIONS=52} [2025-02-08 01:15:57,881 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -14 predicate places. [2025-02-08 01:15:57,881 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 52 transitions, 137 flow [2025-02-08 01:15:57,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 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 01:15:57,882 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:15:57,882 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:15:57,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 01:15:57,882 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-02-08 01:15:57,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:15:57,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1761645420, now seen corresponding path program 2 times [2025-02-08 01:15:57,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:15:57,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057162439] [2025-02-08 01:15:57,884 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 01:15:57,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:15:57,901 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 47 statements into 2 equivalence classes. [2025-02-08 01:15:57,927 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 46 of 47 statements. [2025-02-08 01:15:57,928 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 01:15:57,928 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:15:58,209 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 01:15:58,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:15:58,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057162439] [2025-02-08 01:15:58,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057162439] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:15:58,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:15:58,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 01:15:58,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929916149] [2025-02-08 01:15:58,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:15:58,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 01:15:58,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:15:58,211 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 01:15:58,211 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 01:15:58,212 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 88 [2025-02-08 01:15:58,212 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 52 transitions, 137 flow. Second operand has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 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 01:15:58,212 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:15:58,212 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 88 [2025-02-08 01:15:58,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:15:59,168 INFO L124 PetriNetUnfolderBase]: 16985/22277 cut-off events. [2025-02-08 01:15:59,168 INFO L125 PetriNetUnfolderBase]: For 773/773 co-relation queries the response was YES. [2025-02-08 01:15:59,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45692 conditions, 22277 events. 16985/22277 cut-off events. For 773/773 co-relation queries the response was YES. Maximal size of possible extension queue 646. Compared 107892 event pairs, 15508 based on Foata normal form. 1/21172 useless extension candidates. Maximal degree in co-relation 45685. Up to 21452 conditions per place. [2025-02-08 01:15:59,229 INFO L140 encePairwiseOnDemand]: 83/88 looper letters, 0 selfloop transitions, 0 changer transitions 72/72 dead transitions. [2025-02-08 01:15:59,230 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 72 transitions, 321 flow [2025-02-08 01:15:59,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 01:15:59,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 01:15:59,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 134 transitions. [2025-02-08 01:15:59,231 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2537878787878788 [2025-02-08 01:15:59,231 INFO L175 Difference]: Start difference. First operand has 63 places, 52 transitions, 137 flow. Second operand 6 states and 134 transitions. [2025-02-08 01:15:59,231 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 72 transitions, 321 flow [2025-02-08 01:15:59,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 72 transitions, 315 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 01:15:59,237 INFO L231 Difference]: Finished difference. Result has 62 places, 0 transitions, 0 flow [2025-02-08 01:15:59,237 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=62, PETRI_TRANSITIONS=0} [2025-02-08 01:15:59,238 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -15 predicate places. [2025-02-08 01:15:59,238 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 0 transitions, 0 flow [2025-02-08 01:15:59,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 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 01:15:59,241 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2025-02-08 01:15:59,241 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 11 remaining) [2025-02-08 01:15:59,242 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 11 remaining) [2025-02-08 01:15:59,242 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 11 remaining) [2025-02-08 01:15:59,242 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 11 remaining) [2025-02-08 01:15:59,242 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 11 remaining) [2025-02-08 01:15:59,242 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 11 remaining) [2025-02-08 01:15:59,242 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Thread1of1ForFork2Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 11 remaining) [2025-02-08 01:15:59,242 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Thread1of1ForFork2Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 11 remaining) [2025-02-08 01:15:59,242 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Thread1of1ForFork5Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 11 remaining) [2025-02-08 01:15:59,243 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Thread1of1ForFork5Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 11 remaining) [2025-02-08 01:15:59,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 01:15:59,246 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2025-02-08 01:15:59,251 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 01:15:59,251 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 01:15:59,258 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 01:15:59 BasicIcfg [2025-02-08 01:15:59,261 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 01:15:59,262 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 01:15:59,262 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 01:15:59,262 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 01:15:59,263 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:15:42" (3/4) ... [2025-02-08 01:15:59,265 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 01:15:59,269 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-02-08 01:15:59,270 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-02-08 01:15:59,270 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread3 [2025-02-08 01:15:59,270 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread4 [2025-02-08 01:15:59,270 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread5 [2025-02-08 01:15:59,270 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread6 [2025-02-08 01:15:59,279 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 92 nodes and edges [2025-02-08 01:15:59,280 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 43 nodes and edges [2025-02-08 01:15:59,280 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2025-02-08 01:15:59,280 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-02-08 01:15:59,281 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-08 01:15:59,366 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 01:15:59,366 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 01:15:59,366 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 01:15:59,367 INFO L158 Benchmark]: Toolchain (without parser) took 17861.78ms. Allocated memory was 167.8MB in the beginning and 8.5GB in the end (delta: 8.4GB). Free memory was 134.7MB in the beginning and 6.8GB in the end (delta: -6.6GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. [2025-02-08 01:15:59,368 INFO L158 Benchmark]: CDTParser took 0.66ms. Allocated memory is still 201.3MB. Free memory is still 126.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 01:15:59,368 INFO L158 Benchmark]: CACSL2BoogieTranslator took 249.39ms. Allocated memory is still 167.8MB. Free memory was 134.3MB in the beginning and 121.2MB in the end (delta: 13.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 01:15:59,368 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.65ms. Allocated memory is still 167.8MB. Free memory was 121.2MB in the beginning and 118.7MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 01:15:59,369 INFO L158 Benchmark]: Boogie Preprocessor took 63.62ms. Allocated memory is still 167.8MB. Free memory was 118.7MB in the beginning and 115.8MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 01:15:59,369 INFO L158 Benchmark]: IcfgBuilder took 1021.48ms. Allocated memory is still 167.8MB. Free memory was 115.8MB in the beginning and 106.1MB in the end (delta: 9.6MB). Peak memory consumption was 82.3MB. Max. memory is 16.1GB. [2025-02-08 01:15:59,370 INFO L158 Benchmark]: TraceAbstraction took 16378.81ms. Allocated memory was 167.8MB in the beginning and 8.5GB in the end (delta: 8.4GB). Free memory was 105.1MB in the beginning and 6.8GB in the end (delta: -6.7GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. [2025-02-08 01:15:59,370 INFO L158 Benchmark]: Witness Printer took 104.22ms. Allocated memory is still 8.5GB. Free memory was 6.8GB in the beginning and 6.8GB in the end (delta: 8.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 01:15:59,371 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.66ms. Allocated memory is still 201.3MB. Free memory is still 126.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 249.39ms. Allocated memory is still 167.8MB. Free memory was 134.3MB in the beginning and 121.2MB in the end (delta: 13.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.65ms. Allocated memory is still 167.8MB. Free memory was 121.2MB in the beginning and 118.7MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.62ms. Allocated memory is still 167.8MB. Free memory was 118.7MB in the beginning and 115.8MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 1021.48ms. Allocated memory is still 167.8MB. Free memory was 115.8MB in the beginning and 106.1MB in the end (delta: 9.6MB). Peak memory consumption was 82.3MB. Max. memory is 16.1GB. * TraceAbstraction took 16378.81ms. Allocated memory was 167.8MB in the beginning and 8.5GB in the end (delta: 8.4GB). Free memory was 105.1MB in the beginning and 6.8GB in the end (delta: -6.7GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. * Witness Printer took 104.22ms. Allocated memory is still 8.5GB. Free memory was 6.8GB in the beginning and 6.8GB in the end (delta: 8.4MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 166]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 13 procedures, 130 locations, 11 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 16.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 14.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 89 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 89 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 548 IncrementalHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 548 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=182occurred in iteration=0, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 182 NumberOfCodeBlocks, 181 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 178 ConstructedInterpolants, 0 QuantifiedInterpolants, 1176 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-08 01:15:59,389 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE