./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-lit/fkp2013-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd7e9c4-46aa-437b-8424-a67636d684bf/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd7e9c4-46aa-437b-8424-a67636d684bf/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd7e9c4-46aa-437b-8424-a67636d684bf/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd7e9c4-46aa-437b-8424-a67636d684bf/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-lit/fkp2013-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd7e9c4-46aa-437b-8424-a67636d684bf/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd7e9c4-46aa-437b-8424-a67636d684bf/bin/uautomizer-verify-aQ6SnzHsRB --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 ac100ce7c66b3266dc643fb77471441d693f59fe8c56e13ccaa684a73cdda8b0 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:30:50,500 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:30:50,604 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd7e9c4-46aa-437b-8424-a67636d684bf/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-28 03:30:50,610 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:30:50,611 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:30:50,644 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:30:50,644 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:30:50,645 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:30:50,645 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:30:50,645 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:30:50,646 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:30:50,646 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:30:50,646 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:30:50,647 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:30:50,647 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:30:50,647 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:30:50,647 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:30:50,647 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:30:50,647 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:30:50,648 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:30:50,648 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:30:50,648 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:30:50,648 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-28 03:30:50,648 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:30:50,648 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:30:50,649 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:30:50,649 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:30:50,649 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:30:50,649 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:30:50,649 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:30:50,650 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:30:50,650 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:30:50,650 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:30:50,650 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:30:50,650 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:30:50,651 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:30:50,651 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:30:50,651 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:30:50,651 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:30:50,651 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:30:50,651 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:30:50,651 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:30:50,651 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:30:50,651 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:30:50,652 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:30:50,652 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:30:50,652 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd7e9c4-46aa-437b-8424-a67636d684bf/bin/uautomizer-verify-aQ6SnzHsRB 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 -> ac100ce7c66b3266dc643fb77471441d693f59fe8c56e13ccaa684a73cdda8b0 [2024-11-28 03:30:50,993 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:30:51,004 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:30:51,007 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:30:51,013 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:30:51,013 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:30:51,014 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd7e9c4-46aa-437b-8424-a67636d684bf/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-lit/fkp2013-1.i [2024-11-28 03:30:54,368 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd7e9c4-46aa-437b-8424-a67636d684bf/bin/uautomizer-verify-aQ6SnzHsRB/data/f31f275fd/f6f68efd1bbe4f4eafa50c8398e32f4c/FLAG5749fc229 [2024-11-28 03:30:54,738 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:30:54,739 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd7e9c4-46aa-437b-8424-a67636d684bf/sv-benchmarks/c/pthread-lit/fkp2013-1.i [2024-11-28 03:30:54,753 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd7e9c4-46aa-437b-8424-a67636d684bf/bin/uautomizer-verify-aQ6SnzHsRB/data/f31f275fd/f6f68efd1bbe4f4eafa50c8398e32f4c/FLAG5749fc229 [2024-11-28 03:30:54,772 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd7e9c4-46aa-437b-8424-a67636d684bf/bin/uautomizer-verify-aQ6SnzHsRB/data/f31f275fd/f6f68efd1bbe4f4eafa50c8398e32f4c [2024-11-28 03:30:54,776 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:30:54,778 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:30:54,780 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:30:54,781 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:30:54,786 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:30:54,787 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:30:54" (1/1) ... [2024-11-28 03:30:54,788 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ac38e48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:54, skipping insertion in model container [2024-11-28 03:30:54,789 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:30:54" (1/1) ... [2024-11-28 03:30:54,833 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:30:55,246 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:30:55,259 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:30:55,337 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:30:55,380 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:30:55,382 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:55 WrapperNode [2024-11-28 03:30:55,383 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:30:55,384 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:30:55,384 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:30:55,385 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:30:55,392 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:55" (1/1) ... [2024-11-28 03:30:55,408 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:55" (1/1) ... [2024-11-28 03:30:55,430 INFO L138 Inliner]: procedures = 171, calls = 10, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 53 [2024-11-28 03:30:55,430 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:30:55,431 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:30:55,431 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:30:55,431 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:30:55,438 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:55" (1/1) ... [2024-11-28 03:30:55,439 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:55" (1/1) ... [2024-11-28 03:30:55,441 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:55" (1/1) ... [2024-11-28 03:30:55,441 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:55" (1/1) ... [2024-11-28 03:30:55,446 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:55" (1/1) ... [2024-11-28 03:30:55,447 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:55" (1/1) ... [2024-11-28 03:30:55,451 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:55" (1/1) ... [2024-11-28 03:30:55,452 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:55" (1/1) ... [2024-11-28 03:30:55,453 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:55" (1/1) ... [2024-11-28 03:30:55,455 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:30:55,456 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:30:55,456 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:30:55,456 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:30:55,457 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:55" (1/1) ... [2024-11-28 03:30:55,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:30:55,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd7e9c4-46aa-437b-8424-a67636d684bf/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:30:55,499 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd7e9c4-46aa-437b-8424-a67636d684bf/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:30:55,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd7e9c4-46aa-437b-8424-a67636d684bf/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:30:55,533 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2024-11-28 03:30:55,533 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2024-11-28 03:30:55,534 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-28 03:30:55,534 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-28 03:30:55,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:30:55,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-28 03:30:55,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:30:55,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:30:55,536 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 03:30:55,680 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:30:55,683 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:30:55,898 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 03:30:55,898 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:30:55,912 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:30:55,912 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 03:30:55,913 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:30:55 BoogieIcfgContainer [2024-11-28 03:30:55,913 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:30:55,916 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:30:55,917 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:30:55,925 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:30:55,926 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:30:54" (1/3) ... [2024-11-28 03:30:55,926 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@186efa26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:30:55, skipping insertion in model container [2024-11-28 03:30:55,927 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:55" (2/3) ... [2024-11-28 03:30:55,927 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@186efa26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:30:55, skipping insertion in model container [2024-11-28 03:30:55,927 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:30:55" (3/3) ... [2024-11-28 03:30:55,930 INFO L128 eAbstractionObserver]: Analyzing ICFG fkp2013-1.i [2024-11-28 03:30:55,949 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:30:55,951 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG fkp2013-1.i that has 3 procedures, 76 locations, 1 initial locations, 1 loop locations, and 4 error locations. [2024-11-28 03:30:55,951 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 03:30:56,047 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:30:56,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 82 places, 79 transitions, 166 flow [2024-11-28 03:30:56,185 INFO L124 PetriNetUnfolderBase]: 4/89 cut-off events. [2024-11-28 03:30:56,188 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:30:56,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 89 events. 4/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 141 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 67. Up to 4 conditions per place. [2024-11-28 03:30:56,195 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 79 transitions, 166 flow [2024-11-28 03:30:56,200 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 78 transitions, 163 flow [2024-11-28 03:30:56,212 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:30:56,231 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;@3af196f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:30:56,232 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-28 03:30:56,242 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:30:56,242 INFO L124 PetriNetUnfolderBase]: 0/17 cut-off events. [2024-11-28 03:30:56,242 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:30:56,242 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:30:56,243 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:30:56,244 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 03:30:56,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:30:56,255 INFO L85 PathProgramCache]: Analyzing trace with hash -380619670, now seen corresponding path program 1 times [2024-11-28 03:30:56,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:30:56,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9436048] [2024-11-28 03:30:56,267 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:56,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:30:56,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:30:56,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:30:56,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:30:56,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9436048] [2024-11-28 03:30:56,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9436048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:30:56,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:30:56,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:30:56,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694605870] [2024-11-28 03:30:56,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:30:56,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:30:56,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:30:56,661 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:30:56,662 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:30:56,743 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 79 [2024-11-28 03:30:56,749 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 78 transitions, 163 flow. Second operand has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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) [2024-11-28 03:30:56,750 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:30:56,751 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 79 [2024-11-28 03:30:56,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:30:56,898 INFO L124 PetriNetUnfolderBase]: 11/187 cut-off events. [2024-11-28 03:30:56,901 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-28 03:30:56,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 229 conditions, 187 events. 11/187 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 720 event pairs, 11 based on Foata normal form. 18/178 useless extension candidates. Maximal degree in co-relation 194. Up to 31 conditions per place. [2024-11-28 03:30:56,905 INFO L140 encePairwiseOnDemand]: 73/79 looper letters, 9 selfloop transitions, 2 changer transitions 0/72 dead transitions. [2024-11-28 03:30:56,907 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 72 transitions, 173 flow [2024-11-28 03:30:56,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:30:56,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:30:56,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 204 transitions. [2024-11-28 03:30:56,931 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8607594936708861 [2024-11-28 03:30:56,933 INFO L175 Difference]: Start difference. First operand has 81 places, 78 transitions, 163 flow. Second operand 3 states and 204 transitions. [2024-11-28 03:30:56,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 72 transitions, 173 flow [2024-11-28 03:30:56,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 72 transitions, 172 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:30:56,951 INFO L231 Difference]: Finished difference. Result has 79 places, 72 transitions, 154 flow [2024-11-28 03:30:56,955 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=154, PETRI_PLACES=79, PETRI_TRANSITIONS=72} [2024-11-28 03:30:56,963 INFO L279 CegarLoopForPetriNet]: 81 programPoint places, -2 predicate places. [2024-11-28 03:30:56,963 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 72 transitions, 154 flow [2024-11-28 03:30:56,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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) [2024-11-28 03:30:56,966 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:30:56,966 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:30:56,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:30:56,967 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 03:30:56,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:30:56,968 INFO L85 PathProgramCache]: Analyzing trace with hash 959774408, now seen corresponding path program 1 times [2024-11-28 03:30:56,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:30:56,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645745191] [2024-11-28 03:30:56,970 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:56,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:30:57,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:30:57,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:30:57,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:30:57,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645745191] [2024-11-28 03:30:57,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645745191] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:30:57,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:30:57,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:30:57,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366784051] [2024-11-28 03:30:57,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:30:57,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:30:57,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:30:57,129 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:30:57,129 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:30:57,160 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 79 [2024-11-28 03:30:57,161 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 72 transitions, 154 flow. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 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) [2024-11-28 03:30:57,161 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:30:57,161 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 79 [2024-11-28 03:30:57,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:30:57,247 INFO L124 PetriNetUnfolderBase]: 7/165 cut-off events. [2024-11-28 03:30:57,247 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-28 03:30:57,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 205 conditions, 165 events. 7/165 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 622 event pairs, 3 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 179. Up to 19 conditions per place. [2024-11-28 03:30:57,250 INFO L140 encePairwiseOnDemand]: 73/79 looper letters, 9 selfloop transitions, 4 changer transitions 0/75 dead transitions. [2024-11-28 03:30:57,250 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 75 transitions, 189 flow [2024-11-28 03:30:57,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:30:57,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:30:57,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 210 transitions. [2024-11-28 03:30:57,255 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8860759493670886 [2024-11-28 03:30:57,255 INFO L175 Difference]: Start difference. First operand has 79 places, 72 transitions, 154 flow. Second operand 3 states and 210 transitions. [2024-11-28 03:30:57,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 75 transitions, 189 flow [2024-11-28 03:30:57,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 75 transitions, 185 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:30:57,261 INFO L231 Difference]: Finished difference. Result has 80 places, 74 transitions, 178 flow [2024-11-28 03:30:57,263 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=178, PETRI_PLACES=80, PETRI_TRANSITIONS=74} [2024-11-28 03:30:57,264 INFO L279 CegarLoopForPetriNet]: 81 programPoint places, -1 predicate places. [2024-11-28 03:30:57,265 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 74 transitions, 178 flow [2024-11-28 03:30:57,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 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) [2024-11-28 03:30:57,266 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:30:57,266 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:30:57,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:30:57,266 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 03:30:57,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:30:57,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1417076683, now seen corresponding path program 1 times [2024-11-28 03:30:57,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:30:57,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100726136] [2024-11-28 03:30:57,269 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:57,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:30:57,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:30:57,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:30:57,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:30:57,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100726136] [2024-11-28 03:30:57,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100726136] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:30:57,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:30:57,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:30:57,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389172479] [2024-11-28 03:30:57,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:30:57,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:30:57,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:30:57,365 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:30:57,365 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:30:57,421 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 79 [2024-11-28 03:30:57,422 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 74 transitions, 178 flow. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 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) [2024-11-28 03:30:57,422 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:30:57,422 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 79 [2024-11-28 03:30:57,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:30:57,477 INFO L124 PetriNetUnfolderBase]: 6/179 cut-off events. [2024-11-28 03:30:57,478 INFO L125 PetriNetUnfolderBase]: For 23/25 co-relation queries the response was YES. [2024-11-28 03:30:57,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 179 events. 6/179 cut-off events. For 23/25 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 656 event pairs, 2 based on Foata normal form. 0/167 useless extension candidates. Maximal degree in co-relation 218. Up to 23 conditions per place. [2024-11-28 03:30:57,480 INFO L140 encePairwiseOnDemand]: 74/79 looper letters, 11 selfloop transitions, 4 changer transitions 0/77 dead transitions. [2024-11-28 03:30:57,481 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 77 transitions, 218 flow [2024-11-28 03:30:57,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:30:57,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:30:57,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 209 transitions. [2024-11-28 03:30:57,484 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8818565400843882 [2024-11-28 03:30:57,484 INFO L175 Difference]: Start difference. First operand has 80 places, 74 transitions, 178 flow. Second operand 3 states and 209 transitions. [2024-11-28 03:30:57,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 77 transitions, 218 flow [2024-11-28 03:30:57,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 77 transitions, 208 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:30:57,488 INFO L231 Difference]: Finished difference. Result has 82 places, 77 transitions, 202 flow [2024-11-28 03:30:57,488 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=202, PETRI_PLACES=82, PETRI_TRANSITIONS=77} [2024-11-28 03:30:57,489 INFO L279 CegarLoopForPetriNet]: 81 programPoint places, 1 predicate places. [2024-11-28 03:30:57,490 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 77 transitions, 202 flow [2024-11-28 03:30:57,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 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) [2024-11-28 03:30:57,490 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:30:57,490 INFO L206 CegarLoopForPetriNet]: trace histogram [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] [2024-11-28 03:30:57,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:30:57,491 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 03:30:57,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:30:57,492 INFO L85 PathProgramCache]: Analyzing trace with hash 814986790, now seen corresponding path program 1 times [2024-11-28 03:30:57,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:30:57,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123963454] [2024-11-28 03:30:57,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:57,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:30:57,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:30:57,526 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:30:57,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:30:57,602 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:30:57,602 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:30:57,603 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2024-11-28 03:30:57,607 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2024-11-28 03:30:57,608 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2024-11-28 03:30:57,608 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2024-11-28 03:30:57,613 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2024-11-28 03:30:57,613 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 9 remaining) [2024-11-28 03:30:57,613 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2024-11-28 03:30:57,613 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2024-11-28 03:30:57,613 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2024-11-28 03:30:57,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:30:57,614 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:30:57,618 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:30:57,618 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-28 03:30:57,688 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:30:57,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 119 places, 114 transitions, 248 flow [2024-11-28 03:30:57,741 INFO L124 PetriNetUnfolderBase]: 5/120 cut-off events. [2024-11-28 03:30:57,742 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-28 03:30:57,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 120 events. 5/120 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 209 event pairs, 0 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 127. Up to 6 conditions per place. [2024-11-28 03:30:57,746 INFO L82 GeneralOperation]: Start removeDead. Operand has 119 places, 114 transitions, 248 flow [2024-11-28 03:30:57,748 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 98 places, 93 transitions, 199 flow [2024-11-28 03:30:57,749 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:30:57,752 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;@3af196f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:30:57,754 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-28 03:30:57,759 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:30:57,760 INFO L124 PetriNetUnfolderBase]: 0/17 cut-off events. [2024-11-28 03:30:57,760 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:30:57,760 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:30:57,760 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:30:57,761 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-28 03:30:57,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:30:57,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1012632406, now seen corresponding path program 1 times [2024-11-28 03:30:57,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:30:57,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299164488] [2024-11-28 03:30:57,763 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:57,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:30:57,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:30:57,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:30:57,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:30:57,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299164488] [2024-11-28 03:30:57,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299164488] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:30:57,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:30:57,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:30:57,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228047656] [2024-11-28 03:30:57,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:30:57,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:30:57,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:30:57,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:30:57,842 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:30:57,926 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 114 [2024-11-28 03:30:57,927 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 93 transitions, 199 flow. Second operand has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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) [2024-11-28 03:30:57,927 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:30:57,927 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 114 [2024-11-28 03:30:57,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:30:58,079 INFO L124 PetriNetUnfolderBase]: 65/495 cut-off events. [2024-11-28 03:30:58,080 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-11-28 03:30:58,086 INFO L83 FinitePrefix]: Finished finitePrefix Result has 646 conditions, 495 events. 65/495 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2971 event pairs, 65 based on Foata normal form. 56/469 useless extension candidates. Maximal degree in co-relation 610. Up to 121 conditions per place. [2024-11-28 03:30:58,092 INFO L140 encePairwiseOnDemand]: 108/114 looper letters, 12 selfloop transitions, 2 changer transitions 0/87 dead transitions. [2024-11-28 03:30:58,093 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 87 transitions, 215 flow [2024-11-28 03:30:58,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:30:58,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:30:58,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 288 transitions. [2024-11-28 03:30:58,097 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8421052631578947 [2024-11-28 03:30:58,097 INFO L175 Difference]: Start difference. First operand has 98 places, 93 transitions, 199 flow. Second operand 3 states and 288 transitions. [2024-11-28 03:30:58,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 87 transitions, 215 flow [2024-11-28 03:30:58,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 87 transitions, 214 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:30:58,104 INFO L231 Difference]: Finished difference. Result has 96 places, 87 transitions, 190 flow [2024-11-28 03:30:58,105 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=190, PETRI_PLACES=96, PETRI_TRANSITIONS=87} [2024-11-28 03:30:58,105 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, -2 predicate places. [2024-11-28 03:30:58,106 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 87 transitions, 190 flow [2024-11-28 03:30:58,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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) [2024-11-28 03:30:58,106 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:30:58,106 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:30:58,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:30:58,108 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-28 03:30:58,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:30:58,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1178949704, now seen corresponding path program 1 times [2024-11-28 03:30:58,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:30:58,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596993693] [2024-11-28 03:30:58,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:58,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:30:58,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:30:58,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:30:58,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:30:58,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596993693] [2024-11-28 03:30:58,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596993693] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:30:58,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:30:58,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:30:58,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69517128] [2024-11-28 03:30:58,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:30:58,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:30:58,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:30:58,159 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:30:58,159 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:30:58,231 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 114 [2024-11-28 03:30:58,232 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 87 transitions, 190 flow. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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) [2024-11-28 03:30:58,232 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:30:58,232 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 114 [2024-11-28 03:30:58,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:30:58,380 INFO L124 PetriNetUnfolderBase]: 97/647 cut-off events. [2024-11-28 03:30:58,381 INFO L125 PetriNetUnfolderBase]: For 52/52 co-relation queries the response was YES. [2024-11-28 03:30:58,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 912 conditions, 647 events. 97/647 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 4325 event pairs, 36 based on Foata normal form. 0/573 useless extension candidates. Maximal degree in co-relation 885. Up to 142 conditions per place. [2024-11-28 03:30:58,388 INFO L140 encePairwiseOnDemand]: 103/114 looper letters, 17 selfloop transitions, 8 changer transitions 0/97 dead transitions. [2024-11-28 03:30:58,389 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 97 transitions, 268 flow [2024-11-28 03:30:58,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:30:58,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:30:58,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 292 transitions. [2024-11-28 03:30:58,391 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8538011695906432 [2024-11-28 03:30:58,391 INFO L175 Difference]: Start difference. First operand has 96 places, 87 transitions, 190 flow. Second operand 3 states and 292 transitions. [2024-11-28 03:30:58,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 97 transitions, 268 flow [2024-11-28 03:30:58,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 97 transitions, 264 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:30:58,395 INFO L231 Difference]: Finished difference. Result has 98 places, 95 transitions, 256 flow [2024-11-28 03:30:58,396 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=256, PETRI_PLACES=98, PETRI_TRANSITIONS=95} [2024-11-28 03:30:58,397 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 0 predicate places. [2024-11-28 03:30:58,397 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 95 transitions, 256 flow [2024-11-28 03:30:58,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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) [2024-11-28 03:30:58,397 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:30:58,398 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:30:58,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:30:58,398 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-28 03:30:58,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:30:58,399 INFO L85 PathProgramCache]: Analyzing trace with hash -345505184, now seen corresponding path program 1 times [2024-11-28 03:30:58,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:30:58,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636430642] [2024-11-28 03:30:58,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:58,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:30:58,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:30:58,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:30:58,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:30:58,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636430642] [2024-11-28 03:30:58,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636430642] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:30:58,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:30:58,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:30:58,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687480235] [2024-11-28 03:30:58,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:30:58,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:30:58,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:30:58,500 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:30:58,500 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:30:58,564 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 114 [2024-11-28 03:30:58,565 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 95 transitions, 256 flow. Second operand has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 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) [2024-11-28 03:30:58,565 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:30:58,566 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 114 [2024-11-28 03:30:58,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:30:58,835 INFO L124 PetriNetUnfolderBase]: 198/1010 cut-off events. [2024-11-28 03:30:58,836 INFO L125 PetriNetUnfolderBase]: For 387/395 co-relation queries the response was YES. [2024-11-28 03:30:58,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1842 conditions, 1010 events. 198/1010 cut-off events. For 387/395 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 7685 event pairs, 63 based on Foata normal form. 0/917 useless extension candidates. Maximal degree in co-relation 1809. Up to 256 conditions per place. [2024-11-28 03:30:58,846 INFO L140 encePairwiseOnDemand]: 107/114 looper letters, 17 selfloop transitions, 10 changer transitions 0/104 dead transitions. [2024-11-28 03:30:58,847 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 104 transitions, 351 flow [2024-11-28 03:30:58,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:30:58,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:30:58,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 296 transitions. [2024-11-28 03:30:58,849 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8654970760233918 [2024-11-28 03:30:58,849 INFO L175 Difference]: Start difference. First operand has 98 places, 95 transitions, 256 flow. Second operand 3 states and 296 transitions. [2024-11-28 03:30:58,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 104 transitions, 351 flow [2024-11-28 03:30:58,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 104 transitions, 329 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:30:58,855 INFO L231 Difference]: Finished difference. Result has 100 places, 103 transitions, 326 flow [2024-11-28 03:30:58,855 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=326, PETRI_PLACES=100, PETRI_TRANSITIONS=103} [2024-11-28 03:30:58,856 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 2 predicate places. [2024-11-28 03:30:58,856 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 103 transitions, 326 flow [2024-11-28 03:30:58,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 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) [2024-11-28 03:30:58,857 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:30:58,857 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:30:58,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:30:58,858 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-28 03:30:58,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:30:58,859 INFO L85 PathProgramCache]: Analyzing trace with hash 485802029, now seen corresponding path program 1 times [2024-11-28 03:30:58,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:30:58,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324239469] [2024-11-28 03:30:58,859 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:58,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:30:58,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:30:58,876 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:30:58,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:30:58,893 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:30:58,894 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:30:58,894 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 12 remaining) [2024-11-28 03:30:58,894 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2024-11-28 03:30:58,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2024-11-28 03:30:58,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2024-11-28 03:30:58,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2024-11-28 03:30:58,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 12 remaining) [2024-11-28 03:30:58,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 12 remaining) [2024-11-28 03:30:58,896 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2024-11-28 03:30:58,896 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2024-11-28 03:30:58,896 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2024-11-28 03:30:58,896 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2024-11-28 03:30:58,896 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2024-11-28 03:30:58,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:30:58,897 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:30:58,968 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2024-11-28 03:30:58,968 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:30:58,980 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:30:58 BasicIcfg [2024-11-28 03:30:58,983 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:30:58,984 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:30:58,984 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:30:58,984 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:30:58,986 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:30:55" (3/4) ... [2024-11-28 03:30:58,987 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-28 03:30:59,079 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 2. [2024-11-28 03:30:59,141 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd7e9c4-46aa-437b-8424-a67636d684bf/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 03:30:59,141 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd7e9c4-46aa-437b-8424-a67636d684bf/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 03:30:59,141 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:30:59,142 INFO L158 Benchmark]: Toolchain (without parser) took 4364.43ms. Allocated memory is still 142.6MB. Free memory was 115.7MB in the beginning and 82.8MB in the end (delta: 32.8MB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB. [2024-11-28 03:30:59,143 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 117.4MB. Free memory was 72.7MB in the beginning and 72.5MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:30:59,144 INFO L158 Benchmark]: CACSL2BoogieTranslator took 603.11ms. Allocated memory is still 142.6MB. Free memory was 115.4MB in the beginning and 95.8MB in the end (delta: 19.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 03:30:59,145 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.04ms. Allocated memory is still 142.6MB. Free memory was 95.8MB in the beginning and 94.2MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:30:59,145 INFO L158 Benchmark]: Boogie Preprocessor took 24.31ms. Allocated memory is still 142.6MB. Free memory was 94.2MB in the beginning and 93.3MB in the end (delta: 931.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:30:59,147 INFO L158 Benchmark]: RCFGBuilder took 457.34ms. Allocated memory is still 142.6MB. Free memory was 93.3MB in the beginning and 81.4MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:30:59,147 INFO L158 Benchmark]: TraceAbstraction took 3066.52ms. Allocated memory is still 142.6MB. Free memory was 80.9MB in the beginning and 93.4MB in the end (delta: -12.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:30:59,148 INFO L158 Benchmark]: Witness Printer took 157.73ms. Allocated memory is still 142.6MB. Free memory was 93.4MB in the beginning and 82.8MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:30:59,149 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 117.4MB. Free memory was 72.7MB in the beginning and 72.5MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 603.11ms. Allocated memory is still 142.6MB. Free memory was 115.4MB in the beginning and 95.8MB in the end (delta: 19.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.04ms. Allocated memory is still 142.6MB. Free memory was 95.8MB in the beginning and 94.2MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.31ms. Allocated memory is still 142.6MB. Free memory was 94.2MB in the beginning and 93.3MB in the end (delta: 931.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 457.34ms. Allocated memory is still 142.6MB. Free memory was 93.3MB in the beginning and 81.4MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 3066.52ms. Allocated memory is still 142.6MB. Free memory was 80.9MB in the beginning and 93.4MB in the end (delta: -12.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 157.73ms. Allocated memory is still 142.6MB. Free memory was 93.4MB in the beginning and 82.8MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 699]: Data race detected Data race detected The following path leads to a data race: [L697] 0 volatile int x; VAL [x=0] [L709] 0 pthread_t t1, t2; VAL [\old(argc)=52, \old(argv)={49:50}, argc=52, x=0] [L710] 0 int i; VAL [\old(argc)=52, \old(argv)={49:50}, argc=52, x=0] [L711] 0 x = 0 VAL [\old(argc)=52, \old(argv)={49:50}, argc=52, x=0] [L712] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [\old(argc)=52, \old(argv)={49:50}, argc=52, t1=-1, x=0] [L713] 0 i = 0 VAL [\old(argc)=52, \old(argv)={49:50}, argc=52, i=0, t1=-1, x=0] [L713] COND TRUE 0 i < 50 VAL [\old(argc)=52, \old(argv)={49:50}, argc=52, i=0, t1=-1, x=0] [L714] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [\old(arg)={0:0}, \old(argc)=52, \old(argv)={49:50}, argc=52, i=0, t1=-1, t2=0, x=0] [L699] 1 x < 50 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, x=0] [L703] 2 int t; VAL [\old(arg)={0:0}, arg={0:0}, x=0] [L704] 2 t = x VAL [\old(arg)={0:0}, arg={0:0}, t=0, x=0] [L705] 2 x = t + 1 VAL [\old(arg)={0:0}, arg={0:0}, t=0, x=1] [L699] 1 x < 50 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, t=0, x=1] Now there is a data race on ~x~0 between C: x = t + 1 [705] and C: x < 50 [699] - UnprovableResult [Line: 704]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 111 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.5s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 70 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 77 IncrementalHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 20 mSDtfsCounter, 77 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=202occurred in iteration=3, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 125 NumberOfCodeBlocks, 125 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 87 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 7 procedures, 144 locations, 12 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 121 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 41 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 119 IncrementalHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 8 mSDtfsCounter, 119 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=326occurred in iteration=3, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 126 NumberOfCodeBlocks, 126 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 87 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-28 03:30:59,183 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd7e9c4-46aa-437b-8424-a67636d684bf/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(DATA-RACE)