./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_10-ptrmunge_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_10-ptrmunge_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', '337bc30baab893db6c1e898eac989d238a0e57740b5469c94ed68dbaffc92f80'] 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_10-ptrmunge_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 337bc30baab893db6c1e898eac989d238a0e57740b5469c94ed68dbaffc92f80 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 15:38:23,637 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 15:38:23,771 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-07 15:38:23,779 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 15:38:23,780 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 15:38:23,807 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 15:38:23,808 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 15:38:23,808 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 15:38:23,808 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 15:38:23,808 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 15:38:23,808 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 15:38:23,808 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 15:38:23,808 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 15:38:23,809 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 15:38:23,809 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 15:38:23,809 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 15:38:23,809 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 15:38:23,809 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 15:38:23,811 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 15:38:23,811 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 15:38:23,811 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 15:38:23,811 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 15:38:23,811 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-07 15:38:23,811 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 15:38:23,812 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 15:38:23,812 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 15:38:23,812 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 15:38:23,812 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 15:38:23,812 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 15:38:23,812 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 15:38:23,813 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 15:38:23,813 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 15:38:23,813 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 15:38:23,813 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 15:38:23,813 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 15:38:23,813 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 15:38:23,813 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 15:38:23,814 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 15:38:23,814 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 15:38:23,814 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 15:38:23,814 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 15:38:23,814 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 -> 337bc30baab893db6c1e898eac989d238a0e57740b5469c94ed68dbaffc92f80 [2024-11-07 15:38:24,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 15:38:24,246 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 15:38:24,249 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 15:38:24,250 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 15:38:24,251 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 15:38:24,252 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_10-ptrmunge_racefree.i [2024-11-07 15:38:26,095 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 15:38:26,544 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 15:38:26,546 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_10-ptrmunge_racefree.i [2024-11-07 15:38:26,564 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/442eab15a/814da04c8b1f4ebf8b6d0f438f267b2e/FLAG2468252c0 [2024-11-07 15:38:26,581 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/442eab15a/814da04c8b1f4ebf8b6d0f438f267b2e [2024-11-07 15:38:26,584 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 15:38:26,585 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 15:38:26,587 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 15:38:26,588 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 15:38:26,594 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 15:38:26,594 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:38:26" (1/1) ... [2024-11-07 15:38:26,595 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2da46be1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:26, skipping insertion in model container [2024-11-07 15:38:26,596 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:38:26" (1/1) ... [2024-11-07 15:38:26,631 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 15:38:27,052 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 15:38:27,096 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 15:38:27,156 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 15:38:27,207 INFO L204 MainTranslator]: Completed translation [2024-11-07 15:38:27,208 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:27 WrapperNode [2024-11-07 15:38:27,208 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 15:38:27,209 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 15:38:27,209 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 15:38:27,209 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 15:38:27,214 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:27" (1/1) ... [2024-11-07 15:38:27,236 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:27" (1/1) ... [2024-11-07 15:38:27,299 INFO L138 Inliner]: procedures = 173, calls = 57, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 325 [2024-11-07 15:38:27,299 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 15:38:27,300 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 15:38:27,300 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 15:38:27,300 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 15:38:27,314 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:27" (1/1) ... [2024-11-07 15:38:27,314 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:27" (1/1) ... [2024-11-07 15:38:27,325 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:27" (1/1) ... [2024-11-07 15:38:27,325 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:27" (1/1) ... [2024-11-07 15:38:27,363 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:27" (1/1) ... [2024-11-07 15:38:27,375 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:27" (1/1) ... [2024-11-07 15:38:27,377 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:27" (1/1) ... [2024-11-07 15:38:27,382 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:27" (1/1) ... [2024-11-07 15:38:27,388 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 15:38:27,396 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 15:38:27,396 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 15:38:27,396 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 15:38:27,397 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:27" (1/1) ... [2024-11-07 15:38:27,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 15:38:27,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:38:27,460 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 15:38:27,470 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 15:38:27,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-07 15:38:27,501 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-07 15:38:27,501 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-07 15:38:27,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-07 15:38:27,501 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-07 15:38:27,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 15:38:27,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-07 15:38:27,501 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-11-07 15:38:27,501 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-11-07 15:38:27,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-07 15:38:27,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-07 15:38:27,502 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-07 15:38:27,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 15:38:27,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 15:38:27,503 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 15:38:27,663 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 15:38:27,665 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 15:38:28,178 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 15:38:28,179 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 15:38:28,222 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 15:38:28,224 INFO L316 CfgBuilder]: Removed 24 assume(true) statements. [2024-11-07 15:38:28,225 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:38:28 BoogieIcfgContainer [2024-11-07 15:38:28,225 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 15:38:28,227 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 15:38:28,227 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 15:38:28,231 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 15:38:28,231 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:38:26" (1/3) ... [2024-11-07 15:38:28,231 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c9af63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:38:28, skipping insertion in model container [2024-11-07 15:38:28,231 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:27" (2/3) ... [2024-11-07 15:38:28,232 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c9af63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:38:28, skipping insertion in model container [2024-11-07 15:38:28,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:38:28" (3/3) ... [2024-11-07 15:38:28,233 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_10-ptrmunge_racefree.i [2024-11-07 15:38:28,254 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 15:38:28,254 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-11-07 15:38:28,254 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 15:38:28,445 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-07 15:38:28,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 302 places, 331 transitions, 682 flow [2024-11-07 15:38:28,749 INFO L124 PetriNetUnfolderBase]: 61/612 cut-off events. [2024-11-07 15:38:28,751 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-07 15:38:28,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 629 conditions, 612 events. 61/612 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3133 event pairs, 0 based on Foata normal form. 0/516 useless extension candidates. Maximal degree in co-relation 340. Up to 8 conditions per place. [2024-11-07 15:38:28,772 INFO L82 GeneralOperation]: Start removeDead. Operand has 302 places, 331 transitions, 682 flow [2024-11-07 15:38:28,808 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 302 places, 331 transitions, 682 flow [2024-11-07 15:38:28,816 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 15:38:28,828 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;@46797316, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 15:38:28,828 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-11-07 15:38:28,840 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 15:38:28,840 INFO L124 PetriNetUnfolderBase]: 3/65 cut-off events. [2024-11-07 15:38:28,840 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 15:38:28,841 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:38:28,841 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] [2024-11-07 15:38:28,841 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-07 15:38:28,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:38:28,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1361747000, now seen corresponding path program 1 times [2024-11-07 15:38:28,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:38:28,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586652947] [2024-11-07 15:38:28,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:38:28,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:38:29,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:38:29,990 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 15:38:29,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:38:29,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586652947] [2024-11-07 15:38:29,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586652947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:38:29,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:38:29,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:38:29,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293187621] [2024-11-07 15:38:29,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:38:30,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:38:30,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:38:30,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:38:30,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:38:30,661 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 331 [2024-11-07 15:38:30,668 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 302 places, 331 transitions, 682 flow. Second operand has 6 states, 6 states have (on average 214.5) internal successors, (1287), 6 states have internal predecessors, (1287), 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 15:38:30,669 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:38:30,669 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 331 [2024-11-07 15:38:30,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:38:39,205 INFO L124 PetriNetUnfolderBase]: 25883/66272 cut-off events. [2024-11-07 15:38:39,206 INFO L125 PetriNetUnfolderBase]: For 390/390 co-relation queries the response was YES. [2024-11-07 15:38:39,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105967 conditions, 66272 events. 25883/66272 cut-off events. For 390/390 co-relation queries the response was YES. Maximal size of possible extension queue 1737. Compared 817287 event pairs, 23170 based on Foata normal form. 11017/72758 useless extension candidates. Maximal degree in co-relation 102576. Up to 39291 conditions per place. [2024-11-07 15:38:39,937 INFO L140 encePairwiseOnDemand]: 276/331 looper letters, 119 selfloop transitions, 86 changer transitions 0/416 dead transitions. [2024-11-07 15:38:39,938 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 416 transitions, 1262 flow [2024-11-07 15:38:39,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:38:39,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:38:39,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1560 transitions. [2024-11-07 15:38:39,965 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7854984894259819 [2024-11-07 15:38:39,968 INFO L175 Difference]: Start difference. First operand has 302 places, 331 transitions, 682 flow. Second operand 6 states and 1560 transitions. [2024-11-07 15:38:39,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 416 transitions, 1262 flow [2024-11-07 15:38:39,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 416 transitions, 1262 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:38:39,989 INFO L231 Difference]: Finished difference. Result has 308 places, 384 transitions, 1184 flow [2024-11-07 15:38:39,994 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=618, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=273, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1184, PETRI_PLACES=308, PETRI_TRANSITIONS=384} [2024-11-07 15:38:39,997 INFO L277 CegarLoopForPetriNet]: 302 programPoint places, 6 predicate places. [2024-11-07 15:38:39,997 INFO L471 AbstractCegarLoop]: Abstraction has has 308 places, 384 transitions, 1184 flow [2024-11-07 15:38:39,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 214.5) internal successors, (1287), 6 states have internal predecessors, (1287), 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 15:38:39,998 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:38:39,998 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] [2024-11-07 15:38:40,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 15:38:40,005 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-07 15:38:40,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:38:40,005 INFO L85 PathProgramCache]: Analyzing trace with hash 899939735, now seen corresponding path program 1 times [2024-11-07 15:38:40,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:38:40,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471313601] [2024-11-07 15:38:40,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:38:40,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:38:40,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:38:40,153 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 15:38:40,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:38:40,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471313601] [2024-11-07 15:38:40,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471313601] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:38:40,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:38:40,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 15:38:40,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676003983] [2024-11-07 15:38:40,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:38:40,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:38:40,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:38:40,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:38:40,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:38:40,204 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 331 [2024-11-07 15:38:40,206 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 384 transitions, 1184 flow. Second operand has 3 states, 3 states have (on average 274.3333333333333) internal successors, (823), 3 states have internal predecessors, (823), 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 15:38:40,206 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:38:40,206 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 331 [2024-11-07 15:38:40,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:38:40,922 INFO L124 PetriNetUnfolderBase]: 472/4020 cut-off events. [2024-11-07 15:38:40,922 INFO L125 PetriNetUnfolderBase]: For 274/296 co-relation queries the response was YES. [2024-11-07 15:38:40,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5272 conditions, 4020 events. 472/4020 cut-off events. For 274/296 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 38468 event pairs, 280 based on Foata normal form. 1/3661 useless extension candidates. Maximal degree in co-relation 4741. Up to 565 conditions per place. [2024-11-07 15:38:40,961 INFO L140 encePairwiseOnDemand]: 328/331 looper letters, 34 selfloop transitions, 3 changer transitions 0/392 dead transitions. [2024-11-07 15:38:40,961 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 392 transitions, 1274 flow [2024-11-07 15:38:40,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:38:40,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:38:40,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 856 transitions. [2024-11-07 15:38:40,965 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8620342396777442 [2024-11-07 15:38:40,965 INFO L175 Difference]: Start difference. First operand has 308 places, 384 transitions, 1184 flow. Second operand 3 states and 856 transitions. [2024-11-07 15:38:40,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 392 transitions, 1274 flow [2024-11-07 15:38:40,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 392 transitions, 1274 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:38:40,979 INFO L231 Difference]: Finished difference. Result has 311 places, 384 transitions, 1195 flow [2024-11-07 15:38:40,981 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=1184, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=384, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=381, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1195, PETRI_PLACES=311, PETRI_TRANSITIONS=384} [2024-11-07 15:38:40,982 INFO L277 CegarLoopForPetriNet]: 302 programPoint places, 9 predicate places. [2024-11-07 15:38:40,982 INFO L471 AbstractCegarLoop]: Abstraction has has 311 places, 384 transitions, 1195 flow [2024-11-07 15:38:40,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 274.3333333333333) internal successors, (823), 3 states have internal predecessors, (823), 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 15:38:40,984 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:38:40,984 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-11-07 15:38:40,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 15:38:40,984 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-07 15:38:40,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:38:40,986 INFO L85 PathProgramCache]: Analyzing trace with hash 2060310234, now seen corresponding path program 1 times [2024-11-07 15:38:40,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:38:40,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988579640] [2024-11-07 15:38:40,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:38:40,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:38:41,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 15:38:41,021 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 15:38:41,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 15:38:41,069 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 15:38:41,070 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-07 15:38:41,071 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 26 remaining) [2024-11-07 15:38:41,075 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (24 of 26 remaining) [2024-11-07 15:38:41,075 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (23 of 26 remaining) [2024-11-07 15:38:41,075 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (22 of 26 remaining) [2024-11-07 15:38:41,075 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (21 of 26 remaining) [2024-11-07 15:38:41,075 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (20 of 26 remaining) [2024-11-07 15:38:41,076 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (19 of 26 remaining) [2024-11-07 15:38:41,076 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (18 of 26 remaining) [2024-11-07 15:38:41,076 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 26 remaining) [2024-11-07 15:38:41,076 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 26 remaining) [2024-11-07 15:38:41,077 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 26 remaining) [2024-11-07 15:38:41,077 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (14 of 26 remaining) [2024-11-07 15:38:41,077 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (13 of 26 remaining) [2024-11-07 15:38:41,077 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (12 of 26 remaining) [2024-11-07 15:38:41,078 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (11 of 26 remaining) [2024-11-07 15:38:41,078 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (10 of 26 remaining) [2024-11-07 15:38:41,078 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 26 remaining) [2024-11-07 15:38:41,078 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 26 remaining) [2024-11-07 15:38:41,078 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 26 remaining) [2024-11-07 15:38:41,078 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 26 remaining) [2024-11-07 15:38:41,079 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (5 of 26 remaining) [2024-11-07 15:38:41,079 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 26 remaining) [2024-11-07 15:38:41,079 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 26 remaining) [2024-11-07 15:38:41,079 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 26 remaining) [2024-11-07 15:38:41,079 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 26 remaining) [2024-11-07 15:38:41,079 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 26 remaining) [2024-11-07 15:38:41,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 15:38:41,080 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-07 15:38:41,083 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-07 15:38:41,083 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-07 15:38:41,202 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-11-07 15:38:41,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 494 places, 549 transitions, 1142 flow [2024-11-07 15:38:41,623 INFO L124 PetriNetUnfolderBase]: 205/1754 cut-off events. [2024-11-07 15:38:41,624 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2024-11-07 15:38:41,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1843 conditions, 1754 events. 205/1754 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 12095 event pairs, 1 based on Foata normal form. 0/1478 useless extension candidates. Maximal degree in co-relation 1075. Up to 32 conditions per place. [2024-11-07 15:38:41,685 INFO L82 GeneralOperation]: Start removeDead. Operand has 494 places, 549 transitions, 1142 flow [2024-11-07 15:38:41,709 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 494 places, 549 transitions, 1142 flow [2024-11-07 15:38:41,712 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 15:38:41,715 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;@46797316, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 15:38:41,715 INFO L334 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2024-11-07 15:38:41,721 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 15:38:41,724 INFO L124 PetriNetUnfolderBase]: 3/65 cut-off events. [2024-11-07 15:38:41,724 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 15:38:41,724 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:38:41,725 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] [2024-11-07 15:38:41,725 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-07 15:38:41,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:38:41,725 INFO L85 PathProgramCache]: Analyzing trace with hash 572081595, now seen corresponding path program 1 times [2024-11-07 15:38:41,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:38:41,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029698761] [2024-11-07 15:38:41,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:38:41,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:38:41,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:38:42,068 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 15:38:42,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:38:42,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029698761] [2024-11-07 15:38:42,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029698761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:38:42,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:38:42,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:38:42,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436984598] [2024-11-07 15:38:42,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:38:42,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:38:42,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:38:42,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:38:42,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:38:42,841 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 343 out of 549 [2024-11-07 15:38:42,843 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 494 places, 549 transitions, 1142 flow. Second operand has 6 states, 6 states have (on average 344.5) internal successors, (2067), 6 states have internal predecessors, (2067), 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 15:38:42,843 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:38:42,843 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 343 of 549 [2024-11-07 15:38:42,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand