./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_74-tricky_address1_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/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_74-tricky_address1_racefree.i', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-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 ! data-race) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', '9a7db49c8892594e32a30fa9165fc3ad1a94911917cd8b63757bb8f24f04b536'] 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_74-tricky_address1_racefree.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-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 ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9a7db49c8892594e32a30fa9165fc3ad1a94911917cd8b63757bb8f24f04b536 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 15:40:05,815 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 15:40:05,893 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-07 15:40:05,898 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 15:40:05,898 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 15:40:05,926 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 15:40:05,927 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 15:40:05,927 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 15:40:05,927 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 15:40:05,927 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 15:40:05,927 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 15:40:05,927 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 15:40:05,927 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 15:40:05,928 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 15:40:05,928 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 15:40:05,928 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 15:40:05,928 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 15:40:05,928 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 15:40:05,930 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 15:40:05,931 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 15:40:05,931 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 15:40:05,931 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 15:40:05,931 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-07 15:40:05,931 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 15:40:05,931 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 15:40:05,932 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 15:40:05,932 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 15:40:05,932 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 15:40:05,933 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 15:40:05,933 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 15:40:05,933 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 15:40:05,933 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 15:40:05,933 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 15:40:05,933 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 15:40:05,933 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 15:40:05,933 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 15:40:05,934 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 15:40:05,934 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 15:40:05,934 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 15:40:05,934 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 15:40:05,934 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 15:40:05,935 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 ! data-race) ) 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 -> 9a7db49c8892594e32a30fa9165fc3ad1a94911917cd8b63757bb8f24f04b536 [2024-11-07 15:40:06,242 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 15:40:06,250 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 15:40:06,253 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 15:40:06,254 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 15:40:06,254 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 15:40:06,256 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_74-tricky_address1_racefree.i [2024-11-07 15:40:07,512 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 15:40:07,879 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 15:40:07,883 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_74-tricky_address1_racefree.i [2024-11-07 15:40:07,904 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c29987cf4/4201a9ab0ad24eb2806eed5500eda1be/FLAG6dc2ee5a7 [2024-11-07 15:40:08,089 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c29987cf4/4201a9ab0ad24eb2806eed5500eda1be [2024-11-07 15:40:08,091 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 15:40:08,092 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 15:40:08,093 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 15:40:08,093 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 15:40:08,097 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 15:40:08,097 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:40:08" (1/1) ... [2024-11-07 15:40:08,098 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b75e3ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:40:08, skipping insertion in model container [2024-11-07 15:40:08,098 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:40:08" (1/1) ... [2024-11-07 15:40:08,127 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 15:40:08,498 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 15:40:08,529 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 15:40:08,600 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 15:40:08,666 INFO L204 MainTranslator]: Completed translation [2024-11-07 15:40:08,667 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:40:08 WrapperNode [2024-11-07 15:40:08,668 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 15:40:08,669 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 15:40:08,669 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 15:40:08,669 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 15:40:08,674 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:40:08" (1/1) ... [2024-11-07 15:40:08,699 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:40:08" (1/1) ... [2024-11-07 15:40:08,744 INFO L138 Inliner]: procedures = 271, calls = 110, calls flagged for inlining = 7, calls inlined = 8, statements flattened = 345 [2024-11-07 15:40:08,746 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 15:40:08,747 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 15:40:08,747 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 15:40:08,747 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 15:40:08,753 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:40:08" (1/1) ... [2024-11-07 15:40:08,754 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:40:08" (1/1) ... [2024-11-07 15:40:08,762 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:40:08" (1/1) ... [2024-11-07 15:40:08,763 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:40:08" (1/1) ... [2024-11-07 15:40:08,808 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:40:08" (1/1) ... [2024-11-07 15:40:08,818 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:40:08" (1/1) ... [2024-11-07 15:40:08,822 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:40:08" (1/1) ... [2024-11-07 15:40:08,824 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:40:08" (1/1) ... [2024-11-07 15:40:08,829 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 15:40:08,829 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 15:40:08,830 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 15:40:08,830 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 15:40:08,831 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:40:08" (1/1) ... [2024-11-07 15:40:08,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 15:40:08,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:40:08,863 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) [2024-11-07 15:40:08,867 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 [2024-11-07 15:40:08,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-07 15:40:08,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-07 15:40:08,889 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-07 15:40:08,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-07 15:40:08,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-07 15:40:08,890 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-07 15:40:08,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 15:40:08,890 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-07 15:40:08,890 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-07 15:40:08,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-07 15:40:08,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 15:40:08,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 15:40:08,891 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-07 15:40:09,025 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 15:40:09,027 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 15:40:09,553 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 15:40:09,553 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 15:40:09,601 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 15:40:09,601 INFO L316 CfgBuilder]: Removed 23 assume(true) statements. [2024-11-07 15:40:09,601 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:40:09 BoogieIcfgContainer [2024-11-07 15:40:09,601 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 15:40:09,608 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 15:40:09,608 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 15:40:09,612 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 15:40:09,612 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:40:08" (1/3) ... [2024-11-07 15:40:09,613 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1222f4d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:40:09, skipping insertion in model container [2024-11-07 15:40:09,613 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:40:08" (2/3) ... [2024-11-07 15:40:09,613 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1222f4d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:40:09, skipping insertion in model container [2024-11-07 15:40:09,613 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:40:09" (3/3) ... [2024-11-07 15:40:09,615 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_74-tricky_address1_racefree.i [2024-11-07 15:40:09,629 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 15:40:09,629 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-07 15:40:09,630 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 15:40:09,772 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-07 15:40:09,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 321 places, 351 transitions, 709 flow [2024-11-07 15:40:09,992 INFO L124 PetriNetUnfolderBase]: 48/480 cut-off events. [2024-11-07 15:40:09,994 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-07 15:40:10,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 485 conditions, 480 events. 48/480 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1691 event pairs, 0 based on Foata normal form. 0/410 useless extension candidates. Maximal degree in co-relation 245. Up to 8 conditions per place. [2024-11-07 15:40:10,009 INFO L82 GeneralOperation]: Start removeDead. Operand has 321 places, 351 transitions, 709 flow [2024-11-07 15:40:10,021 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 321 places, 351 transitions, 709 flow [2024-11-07 15:40:10,030 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 15:40:10,059 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;@45105c32, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 15:40:10,059 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-07 15:40:10,093 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 15:40:10,094 INFO L124 PetriNetUnfolderBase]: 8/133 cut-off events. [2024-11-07 15:40:10,094 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 15:40:10,095 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:40:10,096 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:40:10,097 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-07 15:40:10,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:40:10,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1811379567, now seen corresponding path program 1 times [2024-11-07 15:40:10,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:40:10,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948740374] [2024-11-07 15:40:10,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:10,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:40:10,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:40:10,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:40:10,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:40:10,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948740374] [2024-11-07 15:40:10,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948740374] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:40:10,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:40:10,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 15:40:10,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372240221] [2024-11-07 15:40:10,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:40:10,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:40:10,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:40:10,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:40:10,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:40:10,620 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 351 [2024-11-07 15:40:10,627 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 351 transitions, 709 flow. Second operand has 3 states, 3 states have (on average 297.3333333333333) internal successors, (892), 3 states have internal predecessors, (892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:40:10,627 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:40:10,627 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 351 [2024-11-07 15:40:10,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:40:10,939 INFO L124 PetriNetUnfolderBase]: 85/1307 cut-off events. [2024-11-07 15:40:10,939 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-07 15:40:10,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1491 conditions, 1307 events. 85/1307 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 8368 event pairs, 72 based on Foata normal form. 206/1398 useless extension candidates. Maximal degree in co-relation 1247. Up to 178 conditions per place. [2024-11-07 15:40:10,948 INFO L140 encePairwiseOnDemand]: 319/351 looper letters, 23 selfloop transitions, 2 changer transitions 1/319 dead transitions. [2024-11-07 15:40:10,949 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 319 transitions, 695 flow [2024-11-07 15:40:10,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:40:10,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:40:10,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 944 transitions. [2024-11-07 15:40:10,969 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8964862298195632 [2024-11-07 15:40:10,971 INFO L175 Difference]: Start difference. First operand has 321 places, 351 transitions, 709 flow. Second operand 3 states and 944 transitions. [2024-11-07 15:40:10,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 319 transitions, 695 flow [2024-11-07 15:40:10,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 319 transitions, 695 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:40:10,986 INFO L231 Difference]: Finished difference. Result has 320 places, 318 transitions, 653 flow [2024-11-07 15:40:10,989 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=351, PETRI_DIFFERENCE_MINUEND_FLOW=643, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=318, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=316, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=653, PETRI_PLACES=320, PETRI_TRANSITIONS=318} [2024-11-07 15:40:10,992 INFO L277 CegarLoopForPetriNet]: 321 programPoint places, -1 predicate places. [2024-11-07 15:40:10,995 INFO L471 AbstractCegarLoop]: Abstraction has has 320 places, 318 transitions, 653 flow [2024-11-07 15:40:10,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 297.3333333333333) internal successors, (892), 3 states have internal predecessors, (892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:40:10,996 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:40:10,996 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:40:10,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 15:40:10,997 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-07 15:40:10,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:40:10,998 INFO L85 PathProgramCache]: Analyzing trace with hash 2105922071, now seen corresponding path program 1 times [2024-11-07 15:40:10,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:40:10,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691629083] [2024-11-07 15:40:10,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:10,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:40:11,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:40:11,291 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:40:11,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:40:11,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691629083] [2024-11-07 15:40:11,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691629083] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 15:40:11,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [712542789] [2024-11-07 15:40:11,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:11,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:40:11,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:40:11,295 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 15:40:11,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-07 15:40:11,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:40:11,445 INFO L255 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 15:40:11,452 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 15:40:11,525 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:40:11,526 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 15:40:11,576 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:40:11,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [712542789] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 15:40:11,579 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 15:40:11,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-07 15:40:11,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266292510] [2024-11-07 15:40:11,580 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 15:40:11,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 15:40:11,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:40:11,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 15:40:11,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-07 15:40:11,619 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 351 [2024-11-07 15:40:11,625 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 318 transitions, 653 flow. Second operand has 10 states, 10 states have (on average 294.8) internal successors, (2948), 10 states have internal predecessors, (2948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:40:11,625 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:40:11,625 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 351 [2024-11-07 15:40:11,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:40:11,977 INFO L124 PetriNetUnfolderBase]: 85/1313 cut-off events. [2024-11-07 15:40:11,978 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-07 15:40:11,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1516 conditions, 1313 events. 85/1313 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 8349 event pairs, 72 based on Foata normal form. 2/1201 useless extension candidates. Maximal degree in co-relation 1421. Up to 178 conditions per place. [2024-11-07 15:40:11,988 INFO L140 encePairwiseOnDemand]: 345/351 looper letters, 27 selfloop transitions, 9 changer transitions 0/326 dead transitions. [2024-11-07 15:40:11,988 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 326 transitions, 743 flow [2024-11-07 15:40:11,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 15:40:11,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 15:40:11,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2675 transitions. [2024-11-07 15:40:11,997 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.846786957898069 [2024-11-07 15:40:11,999 INFO L175 Difference]: Start difference. First operand has 320 places, 318 transitions, 653 flow. Second operand 9 states and 2675 transitions. [2024-11-07 15:40:11,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 326 transitions, 743 flow [2024-11-07 15:40:12,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 326 transitions, 741 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 15:40:12,008 INFO L231 Difference]: Finished difference. Result has 329 places, 324 transitions, 701 flow [2024-11-07 15:40:12,008 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=351, PETRI_DIFFERENCE_MINUEND_FLOW=651, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=318, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=312, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=701, PETRI_PLACES=329, PETRI_TRANSITIONS=324} [2024-11-07 15:40:12,009 INFO L277 CegarLoopForPetriNet]: 321 programPoint places, 8 predicate places. [2024-11-07 15:40:12,009 INFO L471 AbstractCegarLoop]: Abstraction has has 329 places, 324 transitions, 701 flow [2024-11-07 15:40:12,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 294.8) internal successors, (2948), 10 states have internal predecessors, (2948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:40:12,011 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:40:12,012 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:40:12,031 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-07 15:40:12,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:40:12,213 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-07 15:40:12,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:40:12,213 INFO L85 PathProgramCache]: Analyzing trace with hash 799000855, now seen corresponding path program 2 times [2024-11-07 15:40:12,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:40:12,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308913248] [2024-11-07 15:40:12,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:12,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:40:12,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:40:12,548 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:40:12,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:40:12,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308913248] [2024-11-07 15:40:12,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308913248] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 15:40:12,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2002874825] [2024-11-07 15:40:12,551 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 15:40:12,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:40:12,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:40:12,555 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 15:40:12,557 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-07 15:40:12,655 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-07 15:40:12,656 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 15:40:12,660 INFO L255 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-07 15:40:12,664 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 15:40:12,767 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-07 15:40:12,803 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-11-07 15:40:12,852 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 15:40:12,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2024-11-07 15:40:12,923 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 15:40:12,923 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2024-11-07 15:40:12,978 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-07 15:40:12,979 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 15:40:12,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2002874825] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:40:12,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 15:40:12,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-11-07 15:40:12,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136247977] [2024-11-07 15:40:12,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:40:12,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 15:40:12,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:40:12,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 15:40:12,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-07 15:40:13,284 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 243 out of 351 [2024-11-07 15:40:13,287 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 324 transitions, 701 flow. Second operand has 8 states, 8 states have (on average 244.125) internal successors, (1953), 8 states have internal predecessors, (1953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:40:13,287 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:40:13,287 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 243 of 351 [2024-11-07 15:40:13,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:40:14,166 INFO L124 PetriNetUnfolderBase]: 1305/4976 cut-off events. [2024-11-07 15:40:14,166 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-07 15:40:14,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7604 conditions, 4976 events. 1305/4976 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 43276 event pairs, 1025 based on Foata normal form. 1/4552 useless extension candidates. Maximal degree in co-relation 7480. Up to 2440 conditions per place. [2024-11-07 15:40:14,219 INFO L140 encePairwiseOnDemand]: 339/351 looper letters, 127 selfloop transitions, 11 changer transitions 2/387 dead transitions. [2024-11-07 15:40:14,220 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 387 transitions, 1107 flow [2024-11-07 15:40:14,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 15:40:14,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-07 15:40:14,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2086 transitions. [2024-11-07 15:40:14,226 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7428774928774928 [2024-11-07 15:40:14,226 INFO L175 Difference]: Start difference. First operand has 329 places, 324 transitions, 701 flow. Second operand 8 states and 2086 transitions. [2024-11-07 15:40:14,226 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 387 transitions, 1107 flow [2024-11-07 15:40:14,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 335 places, 387 transitions, 1101 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-07 15:40:14,233 INFO L231 Difference]: Finished difference. Result has 340 places, 331 transitions, 762 flow [2024-11-07 15:40:14,233 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=351, PETRI_DIFFERENCE_MINUEND_FLOW=695, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=324, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=314, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=762, PETRI_PLACES=340, PETRI_TRANSITIONS=331} [2024-11-07 15:40:14,234 INFO L277 CegarLoopForPetriNet]: 321 programPoint places, 19 predicate places. [2024-11-07 15:40:14,234 INFO L471 AbstractCegarLoop]: Abstraction has has 340 places, 331 transitions, 762 flow [2024-11-07 15:40:14,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 244.125) internal successors, (1953), 8 states have internal predecessors, (1953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:40:14,236 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:40:14,236 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:40:14,254 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-07 15:40:14,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:40:14,441 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-07 15:40:14,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:40:14,442 INFO L85 PathProgramCache]: Analyzing trace with hash -669825344, now seen corresponding path program 1 times [2024-11-07 15:40:14,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:40:14,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176679998] [2024-11-07 15:40:14,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:14,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:40:14,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:40:14,717 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-07 15:40:14,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:40:14,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176679998] [2024-11-07 15:40:14,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176679998] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 15:40:14,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2102568842] [2024-11-07 15:40:14,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:14,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:40:14,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:40:14,722 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 15:40:14,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-07 15:40:14,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:40:14,849 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-07 15:40:14,852 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 15:40:14,915 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-07 15:40:14,915 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 15:40:15,025 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-07 15:40:15,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2102568842] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 15:40:15,025 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 15:40:15,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-07 15:40:15,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156188992] [2024-11-07 15:40:15,026 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 15:40:15,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-07 15:40:15,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:40:15,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-07 15:40:15,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-07 15:40:15,078 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 351 [2024-11-07 15:40:15,085 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 331 transitions, 762 flow. Second operand has 18 states, 18 states have (on average 294.94444444444446) internal successors, (5309), 18 states have internal predecessors, (5309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:40:15,085 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:40:15,086 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 351 [2024-11-07 15:40:15,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:40:15,581 INFO L124 PetriNetUnfolderBase]: 88/1322 cut-off events. [2024-11-07 15:40:15,582 INFO L125 PetriNetUnfolderBase]: For 30/34 co-relation queries the response was YES. [2024-11-07 15:40:15,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1628 conditions, 1322 events. 88/1322 cut-off events. For 30/34 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 8475 event pairs, 74 based on Foata normal form. 4/1216 useless extension candidates. Maximal degree in co-relation 1427. Up to 175 conditions per place. [2024-11-07 15:40:15,591 INFO L140 encePairwiseOnDemand]: 345/351 looper letters, 31 selfloop transitions, 21 changer transitions 0/349 dead transitions. [2024-11-07 15:40:15,591 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 349 transitions, 954 flow [2024-11-07 15:40:15,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-07 15:40:15,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-07 15:40:15,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 6209 transitions. [2024-11-07 15:40:15,605 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.842355175688509 [2024-11-07 15:40:15,606 INFO L175 Difference]: Start difference. First operand has 340 places, 331 transitions, 762 flow. Second operand 21 states and 6209 transitions. [2024-11-07 15:40:15,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 360 places, 349 transitions, 954 flow [2024-11-07 15:40:15,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 358 places, 349 transitions, 947 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 15:40:15,617 INFO L231 Difference]: Finished difference. Result has 363 places, 344 transitions, 885 flow [2024-11-07 15:40:15,617 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=351, PETRI_DIFFERENCE_MINUEND_FLOW=755, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=331, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=320, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=885, PETRI_PLACES=363, PETRI_TRANSITIONS=344} [2024-11-07 15:40:15,618 INFO L277 CegarLoopForPetriNet]: 321 programPoint places, 42 predicate places. [2024-11-07 15:40:15,619 INFO L471 AbstractCegarLoop]: Abstraction has has 363 places, 344 transitions, 885 flow [2024-11-07 15:40:15,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 294.94444444444446) internal successors, (5309), 18 states have internal predecessors, (5309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:40:15,622 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:40:15,623 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:40:15,640 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-07 15:40:15,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:40:15,827 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-07 15:40:15,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:40:15,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1235979072, now seen corresponding path program 2 times [2024-11-07 15:40:15,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:40:15,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094387983] [2024-11-07 15:40:15,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:15,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:40:15,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:40:16,289 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-07 15:40:16,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:40:16,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094387983] [2024-11-07 15:40:16,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094387983] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 15:40:16,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [263916646] [2024-11-07 15:40:16,291 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 15:40:16,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:40:16,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:40:16,296 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 15:40:16,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-07 15:40:16,408 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-07 15:40:16,409 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 15:40:16,412 INFO L255 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-07 15:40:16,416 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 15:40:16,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-07 15:40:16,470 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-07 15:40:16,500 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 15:40:16,500 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-11-07 15:40:16,537 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 15:40:16,538 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-11-07 15:40:16,573 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-07 15:40:16,573 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 15:40:16,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [263916646] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:40:16,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 15:40:16,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-07 15:40:16,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539868387] [2024-11-07 15:40:16,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:40:16,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:40:16,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:40:16,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:40:16,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-07 15:40:16,814 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 244 out of 351 [2024-11-07 15:40:16,817 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 344 transitions, 885 flow. Second operand has 6 states, 6 states have (on average 246.66666666666666) internal successors, (1480), 6 states have internal predecessors, (1480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:40:16,817 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:40:16,817 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 244 of 351 [2024-11-07 15:40:16,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:40:17,810 INFO L124 PetriNetUnfolderBase]: 1363/5193 cut-off events. [2024-11-07 15:40:17,810 INFO L125 PetriNetUnfolderBase]: For 284/284 co-relation queries the response was YES. [2024-11-07 15:40:17,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8382 conditions, 5193 events. 1363/5193 cut-off events. For 284/284 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 45362 event pairs, 1033 based on Foata normal form. 29/4791 useless extension candidates. Maximal degree in co-relation 8174. Up to 2525 conditions per place. [2024-11-07 15:40:17,841 INFO L140 encePairwiseOnDemand]: 324/351 looper letters, 107 selfloop transitions, 92 changer transitions 0/460 dead transitions. [2024-11-07 15:40:17,841 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 368 places, 460 transitions, 1537 flow [2024-11-07 15:40:17,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:40:17,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:40:17,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1658 transitions. [2024-11-07 15:40:17,846 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7872744539411206 [2024-11-07 15:40:17,846 INFO L175 Difference]: Start difference. First operand has 363 places, 344 transitions, 885 flow. Second operand 6 states and 1658 transitions. [2024-11-07 15:40:17,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 368 places, 460 transitions, 1537 flow [2024-11-07 15:40:17,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 362 places, 460 transitions, 1513 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-07 15:40:17,860 INFO L231 Difference]: Finished difference. Result has 367 places, 428 transitions, 1469 flow [2024-11-07 15:40:17,860 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=351, PETRI_DIFFERENCE_MINUEND_FLOW=861, PETRI_DIFFERENCE_MINUEND_PLACES=357, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=344, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=312, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1469, PETRI_PLACES=367, PETRI_TRANSITIONS=428} [2024-11-07 15:40:17,861 INFO L277 CegarLoopForPetriNet]: 321 programPoint places, 46 predicate places. [2024-11-07 15:40:17,861 INFO L471 AbstractCegarLoop]: Abstraction has has 367 places, 428 transitions, 1469 flow [2024-11-07 15:40:17,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 246.66666666666666) internal successors, (1480), 6 states have internal predecessors, (1480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:40:17,862 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:40:17,863 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:40:17,880 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-07 15:40:18,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:40:18,067 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-07 15:40:18,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:40:18,068 INFO L85 PathProgramCache]: Analyzing trace with hash 339355473, now seen corresponding path program 1 times [2024-11-07 15:40:18,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:40:18,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893929950] [2024-11-07 15:40:18,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:18,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:40:18,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:40:18,528 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-07 15:40:18,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:40:18,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893929950] [2024-11-07 15:40:18,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893929950] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 15:40:18,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1710456554] [2024-11-07 15:40:18,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:18,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:40:18,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:40:18,531 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 15:40:18,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-07 15:40:18,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:40:18,670 INFO L255 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-07 15:40:18,674 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 15:40:18,772 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-07 15:40:18,772 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 15:40:19,002 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-07 15:40:19,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1710456554] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 15:40:19,003 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 15:40:19,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-07 15:40:19,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753055141] [2024-11-07 15:40:19,005 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 15:40:19,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-07 15:40:19,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:40:19,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-07 15:40:19,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-07 15:40:19,045 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 351 [2024-11-07 15:40:19,054 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 367 places, 428 transitions, 1469 flow. Second operand has 23 states, 23 states have (on average 295.04347826086956) internal successors, (6786), 23 states have internal predecessors, (6786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:40:19,054 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:40:19,054 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 351 [2024-11-07 15:40:19,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:40:19,727 INFO L124 PetriNetUnfolderBase]: 222/1935 cut-off events. [2024-11-07 15:40:19,727 INFO L125 PetriNetUnfolderBase]: For 496/574 co-relation queries the response was YES. [2024-11-07 15:40:19,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3034 conditions, 1935 events. 222/1935 cut-off events. For 496/574 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 14409 event pairs, 72 based on Foata normal form. 3/1798 useless extension candidates. Maximal degree in co-relation 2746. Up to 232 conditions per place. [2024-11-07 15:40:19,740 INFO L140 encePairwiseOnDemand]: 345/351 looper letters, 34 selfloop transitions, 30 changer transitions 0/445 dead transitions. [2024-11-07 15:40:19,740 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 445 transitions, 1719 flow [2024-11-07 15:40:19,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-07 15:40:19,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-07 15:40:19,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 8857 transitions. [2024-11-07 15:40:19,759 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8411206077872745 [2024-11-07 15:40:19,759 INFO L175 Difference]: Start difference. First operand has 367 places, 428 transitions, 1469 flow. Second operand 30 states and 8857 transitions. [2024-11-07 15:40:19,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 445 transitions, 1719 flow [2024-11-07 15:40:19,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 445 transitions, 1701 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-11-07 15:40:19,775 INFO L231 Difference]: Finished difference. Result has 400 places, 438 transitions, 1603 flow [2024-11-07 15:40:19,776 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=351, PETRI_DIFFERENCE_MINUEND_FLOW=1451, PETRI_DIFFERENCE_MINUEND_PLACES=367, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=405, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1603, PETRI_PLACES=400, PETRI_TRANSITIONS=438} [2024-11-07 15:40:19,777 INFO L277 CegarLoopForPetriNet]: 321 programPoint places, 79 predicate places. [2024-11-07 15:40:19,778 INFO L471 AbstractCegarLoop]: Abstraction has has 400 places, 438 transitions, 1603 flow [2024-11-07 15:40:19,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 295.04347826086956) internal successors, (6786), 23 states have internal predecessors, (6786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:40:19,781 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:40:19,782 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:40:19,801 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-07 15:40:19,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:40:19,983 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-07 15:40:19,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:40:19,984 INFO L85 PathProgramCache]: Analyzing trace with hash 198394105, now seen corresponding path program 2 times [2024-11-07 15:40:19,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:40:19,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440391217] [2024-11-07 15:40:19,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:19,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:40:20,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 15:40:20,020 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 15:40:20,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 15:40:20,102 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 15:40:20,102 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-07 15:40:20,103 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2024-11-07 15:40:20,104 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2024-11-07 15:40:20,104 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2024-11-07 15:40:20,104 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2024-11-07 15:40:20,105 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2024-11-07 15:40:20,105 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2024-11-07 15:40:20,107 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2024-11-07 15:40:20,107 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2024-11-07 15:40:20,107 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2024-11-07 15:40:20,107 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2024-11-07 15:40:20,107 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2024-11-07 15:40:20,107 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2024-11-07 15:40:20,107 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2024-11-07 15:40:20,107 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2024-11-07 15:40:20,107 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2024-11-07 15:40:20,107 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2024-11-07 15:40:20,107 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2024-11-07 15:40:20,107 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2024-11-07 15:40:20,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 15:40:20,108 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1] [2024-11-07 15:40:20,112 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-07 15:40:20,112 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-07 15:40:20,165 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-07 15:40:20,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 423 places, 466 transitions, 948 flow [2024-11-07 15:40:20,265 INFO L124 PetriNetUnfolderBase]: 80/752 cut-off events. [2024-11-07 15:40:20,265 INFO L125 PetriNetUnfolderBase]: For 6/7 co-relation queries the response was YES. [2024-11-07 15:40:20,279 INFO L83 FinitePrefix]: Finished finitePrefix Result has 764 conditions, 752 events. 80/752 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3383 event pairs, 0 based on Foata normal form. 0/636 useless extension candidates. Maximal degree in co-relation 482. Up to 12 conditions per place. [2024-11-07 15:40:20,280 INFO L82 GeneralOperation]: Start removeDead. Operand has 423 places, 466 transitions, 948 flow [2024-11-07 15:40:20,290 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 423 places, 466 transitions, 948 flow [2024-11-07 15:40:20,291 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 15:40:20,294 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;@45105c32, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 15:40:20,294 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-07 15:40:20,304 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 15:40:20,304 INFO L124 PetriNetUnfolderBase]: 8/133 cut-off events. [2024-11-07 15:40:20,304 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 15:40:20,305 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:40:20,305 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:40:20,305 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-07 15:40:20,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:40:20,305 INFO L85 PathProgramCache]: Analyzing trace with hash 192077871, now seen corresponding path program 1 times [2024-11-07 15:40:20,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:40:20,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670633701] [2024-11-07 15:40:20,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:20,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:40:20,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:40:20,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:40:20,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:40:20,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670633701] [2024-11-07 15:40:20,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670633701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:40:20,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:40:20,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 15:40:20,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040724299] [2024-11-07 15:40:20,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:40:20,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:40:20,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:40:20,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:40:20,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:40:20,375 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 387 out of 466 [2024-11-07 15:40:20,376 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 466 transitions, 948 flow. Second operand has 3 states, 3 states have (on average 388.3333333333333) internal successors, (1165), 3 states have internal predecessors, (1165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:40:20,377 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:40:20,377 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 387 of 466 [2024-11-07 15:40:20,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:40:22,301 INFO L124 PetriNetUnfolderBase]: 1580/11634 cut-off events. [2024-11-07 15:40:22,302 INFO L125 PetriNetUnfolderBase]: For 89/89 co-relation queries the response was YES. [2024-11-07 15:40:22,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14095 conditions, 11634 events. 1580/11634 cut-off events. For 89/89 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 138987 event pairs, 1464 based on Foata normal form. 2929/13660 useless extension candidates. Maximal degree in co-relation 12445. Up to 2408 conditions per place. [2024-11-07 15:40:22,393 INFO L140 encePairwiseOnDemand]: 421/466 looper letters, 33 selfloop transitions, 2 changer transitions 1/419 dead transitions. [2024-11-07 15:40:22,394 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 419 transitions, 924 flow [2024-11-07 15:40:22,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:40:22,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:40:22,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1240 transitions. [2024-11-07 15:40:22,397 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8869814020028612 [2024-11-07 15:40:22,397 INFO L175 Difference]: Start difference. First operand has 423 places, 466 transitions, 948 flow. Second operand 3 states and 1240 transitions. [2024-11-07 15:40:22,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 419 transitions, 924 flow [2024-11-07 15:40:22,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 419 transitions, 924 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:40:22,405 INFO L231 Difference]: Finished difference. Result has 420 places, 418 transitions, 862 flow [2024-11-07 15:40:22,406 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=852, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=418, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=862, PETRI_PLACES=420, PETRI_TRANSITIONS=418} [2024-11-07 15:40:22,407 INFO L277 CegarLoopForPetriNet]: 423 programPoint places, -3 predicate places. [2024-11-07 15:40:22,407 INFO L471 AbstractCegarLoop]: Abstraction has has 420 places, 418 transitions, 862 flow [2024-11-07 15:40:22,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 388.3333333333333) internal successors, (1165), 3 states have internal predecessors, (1165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:40:22,408 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:40:22,408 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:40:22,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 15:40:22,409 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-07 15:40:22,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:40:22,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1765749591, now seen corresponding path program 1 times [2024-11-07 15:40:22,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:40:22,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524821487] [2024-11-07 15:40:22,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:22,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:40:22,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:40:22,513 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:40:22,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:40:22,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524821487] [2024-11-07 15:40:22,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524821487] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 15:40:22,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1723438866] [2024-11-07 15:40:22,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:22,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:40:22,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:40:22,516 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 15:40:22,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-07 15:40:22,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:40:22,628 INFO L255 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 15:40:22,630 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 15:40:22,655 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:40:22,655 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 15:40:22,690 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:40:22,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1723438866] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 15:40:22,690 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 15:40:22,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-07 15:40:22,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234018083] [2024-11-07 15:40:22,691 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 15:40:22,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 15:40:22,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:40:22,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 15:40:22,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-07 15:40:22,714 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 384 out of 466 [2024-11-07 15:40:22,719 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 418 transitions, 862 flow. Second operand has 10 states, 10 states have (on average 385.8) internal successors, (3858), 10 states have internal predecessors, (3858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:40:22,719 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:40:22,719 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 384 of 466 [2024-11-07 15:40:22,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:40:24,573 INFO L124 PetriNetUnfolderBase]: 1580/11640 cut-off events. [2024-11-07 15:40:24,573 INFO L125 PetriNetUnfolderBase]: For 90/90 co-relation queries the response was YES. [2024-11-07 15:40:24,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14120 conditions, 11640 events. 1580/11640 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 139075 event pairs, 1464 based on Foata normal form. 2/10740 useless extension candidates. Maximal degree in co-relation 14024. Up to 2408 conditions per place. [2024-11-07 15:40:24,644 INFO L140 encePairwiseOnDemand]: 460/466 looper letters, 37 selfloop transitions, 9 changer transitions 0/426 dead transitions. [2024-11-07 15:40:24,644 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 427 places, 426 transitions, 972 flow [2024-11-07 15:40:24,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 15:40:24,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 15:40:24,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3504 transitions. [2024-11-07 15:40:24,651 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8354792560801144 [2024-11-07 15:40:24,652 INFO L175 Difference]: Start difference. First operand has 420 places, 418 transitions, 862 flow. Second operand 9 states and 3504 transitions. [2024-11-07 15:40:24,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 427 places, 426 transitions, 972 flow [2024-11-07 15:40:24,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 426 places, 426 transitions, 970 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 15:40:24,659 INFO L231 Difference]: Finished difference. Result has 429 places, 424 transitions, 910 flow [2024-11-07 15:40:24,659 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=860, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=418, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=412, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=910, PETRI_PLACES=429, PETRI_TRANSITIONS=424} [2024-11-07 15:40:24,662 INFO L277 CegarLoopForPetriNet]: 423 programPoint places, 6 predicate places. [2024-11-07 15:40:24,662 INFO L471 AbstractCegarLoop]: Abstraction has has 429 places, 424 transitions, 910 flow [2024-11-07 15:40:24,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 385.8) internal successors, (3858), 10 states have internal predecessors, (3858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:40:24,663 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:40:24,664 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:40:24,681 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-07 15:40:24,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-07 15:40:24,868 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-07 15:40:24,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:40:24,870 INFO L85 PathProgramCache]: Analyzing trace with hash -196495255, now seen corresponding path program 2 times [2024-11-07 15:40:24,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:40:24,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76037234] [2024-11-07 15:40:24,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:24,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:40:24,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:40:25,028 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:40:25,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:40:25,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76037234] [2024-11-07 15:40:25,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76037234] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 15:40:25,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [57112333] [2024-11-07 15:40:25,028 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 15:40:25,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:40:25,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:40:25,031 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 15:40:25,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-07 15:40:25,167 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-07 15:40:25,167 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 15:40:25,169 INFO L255 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-07 15:40:25,171 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 15:40:25,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-07 15:40:25,236 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-11-07 15:40:25,265 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 15:40:25,266 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2024-11-07 15:40:25,306 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 15:40:25,306 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2024-11-07 15:40:25,337 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-07 15:40:25,338 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 15:40:25,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [57112333] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:40:25,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 15:40:25,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-11-07 15:40:25,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306745324] [2024-11-07 15:40:25,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:40:25,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 15:40:25,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:40:25,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 15:40:25,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-07 15:40:25,828 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 314 out of 466 [2024-11-07 15:40:25,831 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 424 transitions, 910 flow. Second operand has 8 states, 8 states have (on average 315.125) internal successors, (2521), 8 states have internal predecessors, (2521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:40:25,831 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:40:25,831 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 314 of 466 [2024-11-07 15:40:25,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:40:47,511 INFO L124 PetriNetUnfolderBase]: 77255/188406 cut-off events. [2024-11-07 15:40:47,512 INFO L125 PetriNetUnfolderBase]: For 296/320 co-relation queries the response was YES. [2024-11-07 15:40:48,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 304282 conditions, 188406 events. 77255/188406 cut-off events. For 296/320 co-relation queries the response was YES. Maximal size of possible extension queue 3592. Compared 2522242 event pairs, 70336 based on Foata normal form. 1/173663 useless extension candidates. Maximal degree in co-relation 304157. Up to 110410 conditions per place. [2024-11-07 15:40:48,743 INFO L140 encePairwiseOnDemand]: 454/466 looper letters, 188 selfloop transitions, 11 changer transitions 0/516 dead transitions. [2024-11-07 15:40:48,743 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 436 places, 516 transitions, 1492 flow [2024-11-07 15:40:48,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 15:40:48,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-07 15:40:48,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2713 transitions. [2024-11-07 15:40:48,748 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7277360515021459 [2024-11-07 15:40:48,748 INFO L175 Difference]: Start difference. First operand has 429 places, 424 transitions, 910 flow. Second operand 8 states and 2713 transitions. [2024-11-07 15:40:48,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 436 places, 516 transitions, 1492 flow [2024-11-07 15:40:48,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 516 transitions, 1486 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-07 15:40:48,757 INFO L231 Difference]: Finished difference. Result has 440 places, 432 transitions, 975 flow [2024-11-07 15:40:48,757 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=904, PETRI_DIFFERENCE_MINUEND_PLACES=428, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=975, PETRI_PLACES=440, PETRI_TRANSITIONS=432} [2024-11-07 15:40:48,758 INFO L277 CegarLoopForPetriNet]: 423 programPoint places, 17 predicate places. [2024-11-07 15:40:48,758 INFO L471 AbstractCegarLoop]: Abstraction has has 440 places, 432 transitions, 975 flow [2024-11-07 15:40:48,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 315.125) internal successors, (2521), 8 states have internal predecessors, (2521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:40:48,759 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:40:48,759 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:40:48,776 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-07 15:40:48,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:40:48,960 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-07 15:40:48,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:40:48,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1724529279, now seen corresponding path program 1 times [2024-11-07 15:40:48,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:40:48,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743471480] [2024-11-07 15:40:48,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:48,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:40:48,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:40:49,135 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-07 15:40:49,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:40:49,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743471480] [2024-11-07 15:40:49,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743471480] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 15:40:49,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2048282756] [2024-11-07 15:40:49,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:49,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:40:49,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:40:49,138 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 15:40:49,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-07 15:40:49,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:40:49,261 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-07 15:40:49,263 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 15:40:49,303 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-07 15:40:49,304 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 15:40:49,390 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-07 15:40:49,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2048282756] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 15:40:49,391 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 15:40:49,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-07 15:40:49,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795523337] [2024-11-07 15:40:49,392 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 15:40:49,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-07 15:40:49,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:40:49,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-07 15:40:49,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-07 15:40:49,430 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 384 out of 466 [2024-11-07 15:40:49,436 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 432 transitions, 975 flow. Second operand has 18 states, 18 states have (on average 385.94444444444446) internal successors, (6947), 18 states have internal predecessors, (6947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:40:49,436 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:40:49,436 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 384 of 466 [2024-11-07 15:40:49,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:40:51,044 INFO L124 PetriNetUnfolderBase]: 1631/12202 cut-off events. [2024-11-07 15:40:51,044 INFO L125 PetriNetUnfolderBase]: For 115/119 co-relation queries the response was YES. [2024-11-07 15:40:51,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15097 conditions, 12202 events. 1631/12202 cut-off events. For 115/119 co-relation queries the response was YES. Maximal size of possible extension queue 290. Compared 148321 event pairs, 1508 based on Foata normal form. 4/11249 useless extension candidates. Maximal degree in co-relation 14895. Up to 2474 conditions per place. [2024-11-07 15:40:51,148 INFO L140 encePairwiseOnDemand]: 460/466 looper letters, 41 selfloop transitions, 21 changer transitions 0/450 dead transitions. [2024-11-07 15:40:51,148 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 450 transitions, 1187 flow [2024-11-07 15:40:51,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-07 15:40:51,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-07 15:40:51,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 8130 transitions. [2024-11-07 15:40:51,155 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8307786633966892 [2024-11-07 15:40:51,155 INFO L175 Difference]: Start difference. First operand has 440 places, 432 transitions, 975 flow. Second operand 21 states and 8130 transitions. [2024-11-07 15:40:51,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 450 transitions, 1187 flow [2024-11-07 15:40:51,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 459 places, 450 transitions, 1185 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 15:40:51,163 INFO L231 Difference]: Finished difference. Result has 464 places, 445 transitions, 1103 flow [2024-11-07 15:40:51,164 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=973, PETRI_DIFFERENCE_MINUEND_PLACES=439, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=432, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1103, PETRI_PLACES=464, PETRI_TRANSITIONS=445} [2024-11-07 15:40:51,164 INFO L277 CegarLoopForPetriNet]: 423 programPoint places, 41 predicate places. [2024-11-07 15:40:51,164 INFO L471 AbstractCegarLoop]: Abstraction has has 464 places, 445 transitions, 1103 flow [2024-11-07 15:40:51,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 385.94444444444446) internal successors, (6947), 18 states have internal predecessors, (6947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:40:51,167 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:40:51,167 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:40:51,195 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-07 15:40:51,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:40:51,372 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-07 15:40:51,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:40:51,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1875209473, now seen corresponding path program 2 times [2024-11-07 15:40:51,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:40:51,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568032478] [2024-11-07 15:40:51,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:51,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:40:51,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:40:51,693 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-07 15:40:51,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:40:51,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568032478] [2024-11-07 15:40:51,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568032478] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 15:40:51,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482981103] [2024-11-07 15:40:51,694 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 15:40:51,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:40:51,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:40:51,696 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 15:40:51,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-07 15:40:51,810 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-07 15:40:51,810 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 15:40:51,811 INFO L255 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-07 15:40:51,814 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 15:40:51,821 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-07 15:40:51,838 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-07 15:40:51,864 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 15:40:51,864 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-11-07 15:40:51,896 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 15:40:51,897 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-11-07 15:40:51,933 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-07 15:40:51,933 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 15:40:51,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1482981103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:40:51,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 15:40:51,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-07 15:40:51,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118401081] [2024-11-07 15:40:51,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:40:51,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:40:51,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:40:51,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:40:51,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-07 15:40:52,334 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 315 out of 466 [2024-11-07 15:40:52,336 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 445 transitions, 1103 flow. Second operand has 6 states, 6 states have (on average 317.6666666666667) internal successors, (1906), 6 states have internal predecessors, (1906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:40:52,340 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:40:52,340 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 315 of 466 [2024-11-07 15:40:52,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand