./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_82-list_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5eca5f2-1328-4c76-818a-b08a3c977d9b/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5eca5f2-1328-4c76-818a-b08a3c977d9b/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5eca5f2-1328-4c76-818a-b08a3c977d9b/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5eca5f2-1328-4c76-818a-b08a3c977d9b/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_82-list_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5eca5f2-1328-4c76-818a-b08a3c977d9b/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5eca5f2-1328-4c76-818a-b08a3c977d9b/bin/uautomizer-verify-jihMAELWvX --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 6ac894f5c6207d1329786eb676509b79ca36f8c33f880cc59ffa30652ab92765 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:26:32,638 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:26:32,767 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5eca5f2-1328-4c76-818a-b08a3c977d9b/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-08 17:26:32,773 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:26:32,773 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:26:32,812 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:26:32,814 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:26:32,815 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:26:32,816 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:26:32,818 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:26:32,819 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:26:32,819 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:26:32,820 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:26:32,820 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:26:32,823 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:26:32,823 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:26:32,824 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:26:32,824 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:26:32,825 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:26:32,825 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:26:32,835 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:26:32,836 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:26:32,837 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-08 17:26:32,837 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:26:32,837 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 17:26:32,838 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:26:32,838 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:26:32,838 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:26:32,839 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:26:32,839 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:26:32,839 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:26:32,844 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:26:32,844 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:26:32,845 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:26:32,845 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:26:32,845 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:26:32,845 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:26:32,846 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:26:32,846 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:26:32,846 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:26:32,847 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:26:32,849 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5eca5f2-1328-4c76-818a-b08a3c977d9b/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5eca5f2-1328-4c76-818a-b08a3c977d9b/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6ac894f5c6207d1329786eb676509b79ca36f8c33f880cc59ffa30652ab92765 [2024-11-08 17:26:33,155 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:26:33,179 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:26:33,182 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:26:33,184 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:26:33,185 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:26:33,186 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5eca5f2-1328-4c76-818a-b08a3c977d9b/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/28-race_reach_82-list_racefree.i Unable to find full path for "g++" [2024-11-08 17:26:35,238 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:26:35,613 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:26:35,614 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5eca5f2-1328-4c76-818a-b08a3c977d9b/sv-benchmarks/c/goblint-regression/28-race_reach_82-list_racefree.i [2024-11-08 17:26:35,641 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5eca5f2-1328-4c76-818a-b08a3c977d9b/bin/uautomizer-verify-jihMAELWvX/data/12d23ac23/ad4b22cf493f4e4aa2f57b22585ee186/FLAGc063034ea [2024-11-08 17:26:35,658 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5eca5f2-1328-4c76-818a-b08a3c977d9b/bin/uautomizer-verify-jihMAELWvX/data/12d23ac23/ad4b22cf493f4e4aa2f57b22585ee186 [2024-11-08 17:26:35,661 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:26:35,663 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:26:35,665 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:26:35,665 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:26:35,674 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:26:35,675 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:26:35" (1/1) ... [2024-11-08 17:26:35,677 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22a5118e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:26:35, skipping insertion in model container [2024-11-08 17:26:35,677 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:26:35" (1/1) ... [2024-11-08 17:26:35,733 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:26:36,404 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:26:36,423 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:26:36,516 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:26:36,586 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:26:36,587 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:26:36 WrapperNode [2024-11-08 17:26:36,587 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:26:36,588 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:26:36,588 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:26:36,589 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:26:36,598 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:26:36" (1/1) ... [2024-11-08 17:26:36,622 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:26:36" (1/1) ... [2024-11-08 17:26:36,678 INFO L138 Inliner]: procedures = 279, calls = 68, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 332 [2024-11-08 17:26:36,679 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:26:36,679 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:26:36,680 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:26:36,680 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:26:36,692 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:26:36" (1/1) ... [2024-11-08 17:26:36,693 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:26:36" (1/1) ... [2024-11-08 17:26:36,703 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:26:36" (1/1) ... [2024-11-08 17:26:36,703 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:26:36" (1/1) ... [2024-11-08 17:26:36,726 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:26:36" (1/1) ... [2024-11-08 17:26:36,732 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:26:36" (1/1) ... [2024-11-08 17:26:36,735 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:26:36" (1/1) ... [2024-11-08 17:26:36,738 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:26:36" (1/1) ... [2024-11-08 17:26:36,743 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:26:36,744 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:26:36,745 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:26:36,745 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:26:36,746 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:26:36" (1/1) ... [2024-11-08 17:26:36,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:26:36,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5eca5f2-1328-4c76-818a-b08a3c977d9b/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:26:36,789 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5eca5f2-1328-4c76-818a-b08a3c977d9b/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:26:36,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5eca5f2-1328-4c76-818a-b08a3c977d9b/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:26:36,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 17:26:36,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-08 17:26:36,829 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-11-08 17:26:36,829 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-11-08 17:26:36,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 17:26:36,829 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 17:26:36,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-08 17:26:36,830 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-08 17:26:36,830 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-08 17:26:36,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-08 17:26:36,830 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 17:26:36,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 17:26:36,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:26:36,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-08 17:26:36,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 17:26:36,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:26:36,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:26:36,833 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 17:26:37,022 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:26:37,024 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:26:37,866 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 17:26:37,866 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:26:37,929 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:26:37,932 INFO L316 CfgBuilder]: Removed 11 assume(true) statements. [2024-11-08 17:26:37,932 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:26:37 BoogieIcfgContainer [2024-11-08 17:26:37,933 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:26:37,935 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:26:37,935 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:26:37,940 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:26:37,941 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:26:35" (1/3) ... [2024-11-08 17:26:37,943 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a314ba4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:26:37, skipping insertion in model container [2024-11-08 17:26:37,943 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:26:36" (2/3) ... [2024-11-08 17:26:37,943 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a314ba4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:26:37, skipping insertion in model container [2024-11-08 17:26:37,944 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:26:37" (3/3) ... [2024-11-08 17:26:37,945 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_82-list_racefree.i [2024-11-08 17:26:37,967 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:26:37,967 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2024-11-08 17:26:37,967 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 17:26:38,150 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-08 17:26:38,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 350 places, 369 transitions, 758 flow [2024-11-08 17:26:38,544 INFO L124 PetriNetUnfolderBase]: 54/702 cut-off events. [2024-11-08 17:26:38,544 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-08 17:26:38,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 719 conditions, 702 events. 54/702 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3175 event pairs, 0 based on Foata normal form. 0/600 useless extension candidates. Maximal degree in co-relation 352. Up to 8 conditions per place. [2024-11-08 17:26:38,562 INFO L82 GeneralOperation]: Start removeDead. Operand has 350 places, 369 transitions, 758 flow [2024-11-08 17:26:38,579 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 350 places, 369 transitions, 758 flow [2024-11-08 17:26:38,596 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:26:38,604 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;@8c0d95c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:26:38,605 INFO L334 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2024-11-08 17:26:38,612 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 17:26:38,612 INFO L124 PetriNetUnfolderBase]: 0/34 cut-off events. [2024-11-08 17:26:38,612 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 17:26:38,612 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:26:38,613 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] [2024-11-08 17:26:38,614 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-08 17:26:38,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:26:38,620 INFO L85 PathProgramCache]: Analyzing trace with hash -2039631857, now seen corresponding path program 1 times [2024-11-08 17:26:38,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:26:38,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240591613] [2024-11-08 17:26:38,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:26:38,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:26:38,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:26:39,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:26:39,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:26:39,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240591613] [2024-11-08 17:26:39,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240591613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:26:39,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:26:39,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:26:39,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545439338] [2024-11-08 17:26:39,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:26:39,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:26:39,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:26:39,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:26:39,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:26:39,132 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 369 [2024-11-08 17:26:39,138 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 350 places, 369 transitions, 758 flow. Second operand has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 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) [2024-11-08 17:26:39,139 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:26:39,139 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 369 [2024-11-08 17:26:39,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:26:40,085 INFO L124 PetriNetUnfolderBase]: 239/2442 cut-off events. [2024-11-08 17:26:40,086 INFO L125 PetriNetUnfolderBase]: For 120/120 co-relation queries the response was YES. [2024-11-08 17:26:40,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2830 conditions, 2442 events. 239/2442 cut-off events. For 120/120 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 18551 event pairs, 158 based on Foata normal form. 120/2302 useless extension candidates. Maximal degree in co-relation 1928. Up to 333 conditions per place. [2024-11-08 17:26:40,124 INFO L140 encePairwiseOnDemand]: 353/369 looper letters, 25 selfloop transitions, 2 changer transitions 0/353 dead transitions. [2024-11-08 17:26:40,125 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 353 transitions, 780 flow [2024-11-08 17:26:40,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:26:40,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:26:40,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1022 transitions. [2024-11-08 17:26:40,152 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9232158988256549 [2024-11-08 17:26:40,158 INFO L175 Difference]: Start difference. First operand has 350 places, 369 transitions, 758 flow. Second operand 3 states and 1022 transitions. [2024-11-08 17:26:40,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 353 transitions, 780 flow [2024-11-08 17:26:40,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 353 transitions, 780 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 17:26:40,180 INFO L231 Difference]: Finished difference. Result has 349 places, 353 transitions, 730 flow [2024-11-08 17:26:40,183 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=726, PETRI_DIFFERENCE_MINUEND_PLACES=347, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=730, PETRI_PLACES=349, PETRI_TRANSITIONS=353} [2024-11-08 17:26:40,188 INFO L277 CegarLoopForPetriNet]: 350 programPoint places, -1 predicate places. [2024-11-08 17:26:40,189 INFO L471 AbstractCegarLoop]: Abstraction has has 349 places, 353 transitions, 730 flow [2024-11-08 17:26:40,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 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) [2024-11-08 17:26:40,190 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:26:40,191 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] [2024-11-08 17:26:40,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:26:40,192 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-08 17:26:40,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:26:40,193 INFO L85 PathProgramCache]: Analyzing trace with hash 977841379, now seen corresponding path program 1 times [2024-11-08 17:26:40,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:26:40,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777742004] [2024-11-08 17:26:40,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:26:40,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:26:40,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:26:40,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:26:40,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:26:40,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777742004] [2024-11-08 17:26:40,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777742004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:26:40,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:26:40,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:26:40,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260006726] [2024-11-08 17:26:40,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:26:40,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:26:40,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:26:40,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:26:40,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:26:40,400 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 369 [2024-11-08 17:26:40,402 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 353 transitions, 730 flow. Second operand has 3 states, 3 states have (on average 328.0) internal successors, (984), 3 states have internal predecessors, (984), 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) [2024-11-08 17:26:40,402 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:26:40,403 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 369 [2024-11-08 17:26:40,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:26:41,164 INFO L124 PetriNetUnfolderBase]: 161/2074 cut-off events. [2024-11-08 17:26:41,166 INFO L125 PetriNetUnfolderBase]: For 140/140 co-relation queries the response was YES. [2024-11-08 17:26:41,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2353 conditions, 2074 events. 161/2074 cut-off events. For 140/140 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 13275 event pairs, 84 based on Foata normal form. 0/1839 useless extension candidates. Maximal degree in co-relation 2308. Up to 213 conditions per place. [2024-11-08 17:26:41,197 INFO L140 encePairwiseOnDemand]: 365/369 looper letters, 24 selfloop transitions, 1 changer transitions 0/350 dead transitions. [2024-11-08 17:26:41,197 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 350 transitions, 774 flow [2024-11-08 17:26:41,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:26:41,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:26:41,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1009 transitions. [2024-11-08 17:26:41,205 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9114724480578139 [2024-11-08 17:26:41,205 INFO L175 Difference]: Start difference. First operand has 349 places, 353 transitions, 730 flow. Second operand 3 states and 1009 transitions. [2024-11-08 17:26:41,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 348 places, 350 transitions, 774 flow [2024-11-08 17:26:41,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 350 transitions, 770 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 17:26:41,220 INFO L231 Difference]: Finished difference. Result has 346 places, 350 transitions, 722 flow [2024-11-08 17:26:41,221 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=720, PETRI_DIFFERENCE_MINUEND_PLACES=344, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=350, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=722, PETRI_PLACES=346, PETRI_TRANSITIONS=350} [2024-11-08 17:26:41,222 INFO L277 CegarLoopForPetriNet]: 350 programPoint places, -4 predicate places. [2024-11-08 17:26:41,223 INFO L471 AbstractCegarLoop]: Abstraction has has 346 places, 350 transitions, 722 flow [2024-11-08 17:26:41,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 328.0) internal successors, (984), 3 states have internal predecessors, (984), 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) [2024-11-08 17:26:41,224 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:26:41,224 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] [2024-11-08 17:26:41,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 17:26:41,225 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-08 17:26:41,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:26:41,226 INFO L85 PathProgramCache]: Analyzing trace with hash -2089362266, now seen corresponding path program 1 times [2024-11-08 17:26:41,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:26:41,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658672136] [2024-11-08 17:26:41,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:26:41,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:26:41,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:26:42,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:26:42,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:26:42,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658672136] [2024-11-08 17:26:42,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658672136] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:26:42,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:26:42,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:26:42,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028668302] [2024-11-08 17:26:42,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:26:42,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:26:42,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:26:42,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:26:42,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:26:42,770 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 262 out of 369 [2024-11-08 17:26:42,772 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 346 places, 350 transitions, 722 flow. Second operand has 6 states, 6 states have (on average 263.3333333333333) internal successors, (1580), 6 states have internal predecessors, (1580), 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) [2024-11-08 17:26:42,772 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:26:42,773 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 262 of 369 [2024-11-08 17:26:42,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:26:55,442 INFO L124 PetriNetUnfolderBase]: 23557/62259 cut-off events. [2024-11-08 17:26:55,443 INFO L125 PetriNetUnfolderBase]: For 409/409 co-relation queries the response was YES. [2024-11-08 17:26:55,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98190 conditions, 62259 events. 23557/62259 cut-off events. For 409/409 co-relation queries the response was YES. Maximal size of possible extension queue 1118. Compared 730927 event pairs, 22570 based on Foata normal form. 0/57934 useless extension candidates. Maximal degree in co-relation 98146. Up to 35743 conditions per place. [2024-11-08 17:26:55,994 INFO L140 encePairwiseOnDemand]: 363/369 looper letters, 87 selfloop transitions, 5 changer transitions 0/349 dead transitions. [2024-11-08 17:26:55,995 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 350 places, 349 transitions, 904 flow [2024-11-08 17:26:55,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:26:55,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:26:56,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1665 transitions. [2024-11-08 17:26:56,002 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7520325203252033 [2024-11-08 17:26:56,002 INFO L175 Difference]: Start difference. First operand has 346 places, 350 transitions, 722 flow. Second operand 6 states and 1665 transitions. [2024-11-08 17:26:56,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 350 places, 349 transitions, 904 flow [2024-11-08 17:26:56,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 349 transitions, 903 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 17:26:56,020 INFO L231 Difference]: Finished difference. Result has 349 places, 349 transitions, 729 flow [2024-11-08 17:26:56,021 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=719, PETRI_DIFFERENCE_MINUEND_PLACES=344, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=349, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=729, PETRI_PLACES=349, PETRI_TRANSITIONS=349} [2024-11-08 17:26:56,023 INFO L277 CegarLoopForPetriNet]: 350 programPoint places, -1 predicate places. [2024-11-08 17:26:56,024 INFO L471 AbstractCegarLoop]: Abstraction has has 349 places, 349 transitions, 729 flow [2024-11-08 17:26:56,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 263.3333333333333) internal successors, (1580), 6 states have internal predecessors, (1580), 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) [2024-11-08 17:26:56,025 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:26:56,026 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:26:56,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 17:26:56,027 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-08 17:26:56,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:26:56,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1994659668, now seen corresponding path program 1 times [2024-11-08 17:26:56,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:26:56,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407032991] [2024-11-08 17:26:56,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:26:56,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:26:56,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:26:56,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:26:56,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:26:56,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407032991] [2024-11-08 17:26:56,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407032991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:26:56,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:26:56,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:26:56,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833318126] [2024-11-08 17:26:56,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:26:56,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:26:56,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:26:56,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:26:56,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:26:57,299 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 262 out of 369 [2024-11-08 17:26:57,302 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 349 transitions, 729 flow. Second operand has 6 states, 6 states have (on average 263.3333333333333) internal successors, (1580), 6 states have internal predecessors, (1580), 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) [2024-11-08 17:26:57,302 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:26:57,303 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 262 of 369 [2024-11-08 17:26:57,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:27:08,811 INFO L124 PetriNetUnfolderBase]: 23573/62807 cut-off events. [2024-11-08 17:27:08,811 INFO L125 PetriNetUnfolderBase]: For 409/409 co-relation queries the response was YES. [2024-11-08 17:27:08,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98705 conditions, 62807 events. 23573/62807 cut-off events. For 409/409 co-relation queries the response was YES. Maximal size of possible extension queue 1118. Compared 740249 event pairs, 22570 based on Foata normal form. 0/58444 useless extension candidates. Maximal degree in co-relation 98661. Up to 35705 conditions per place. [2024-11-08 17:27:09,214 INFO L140 encePairwiseOnDemand]: 363/369 looper letters, 87 selfloop transitions, 5 changer transitions 0/348 dead transitions. [2024-11-08 17:27:09,215 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 353 places, 348 transitions, 911 flow [2024-11-08 17:27:09,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:27:09,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:27:09,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1665 transitions. [2024-11-08 17:27:09,220 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7520325203252033 [2024-11-08 17:27:09,220 INFO L175 Difference]: Start difference. First operand has 349 places, 349 transitions, 729 flow. Second operand 6 states and 1665 transitions. [2024-11-08 17:27:09,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 353 places, 348 transitions, 911 flow [2024-11-08 17:27:09,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 348 places, 348 transitions, 901 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 17:27:09,235 INFO L231 Difference]: Finished difference. Result has 348 places, 348 transitions, 727 flow [2024-11-08 17:27:09,238 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=717, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=348, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=727, PETRI_PLACES=348, PETRI_TRANSITIONS=348} [2024-11-08 17:27:09,240 INFO L277 CegarLoopForPetriNet]: 350 programPoint places, -2 predicate places. [2024-11-08 17:27:09,240 INFO L471 AbstractCegarLoop]: Abstraction has has 348 places, 348 transitions, 727 flow [2024-11-08 17:27:09,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 263.3333333333333) internal successors, (1580), 6 states have internal predecessors, (1580), 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) [2024-11-08 17:27:09,242 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:27:09,243 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:27:09,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 17:27:09,243 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-08 17:27:09,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:27:09,245 INFO L85 PathProgramCache]: Analyzing trace with hash 704554377, now seen corresponding path program 1 times [2024-11-08 17:27:09,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:27:09,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998608921] [2024-11-08 17:27:09,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:27:09,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:27:09,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:27:09,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:27:09,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:27:09,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998608921] [2024-11-08 17:27:09,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998608921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:27:09,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:27:09,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:27:09,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508550918] [2024-11-08 17:27:09,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:27:09,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:27:09,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:27:09,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:27:09,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:27:10,587 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 369 [2024-11-08 17:27:10,590 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 348 transitions, 727 flow. Second operand has 6 states, 6 states have (on average 257.8333333333333) internal successors, (1547), 6 states have internal predecessors, (1547), 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) [2024-11-08 17:27:10,590 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:27:10,590 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 369 [2024-11-08 17:27:10,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:27:23,716 INFO L124 PetriNetUnfolderBase]: 27523/72732 cut-off events. [2024-11-08 17:27:23,716 INFO L125 PetriNetUnfolderBase]: For 409/409 co-relation queries the response was YES. [2024-11-08 17:27:23,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114656 conditions, 72732 events. 27523/72732 cut-off events. For 409/409 co-relation queries the response was YES. Maximal size of possible extension queue 1396. Compared 885402 event pairs, 26131 based on Foata normal form. 0/67616 useless extension candidates. Maximal degree in co-relation 114611. Up to 41583 conditions per place. [2024-11-08 17:27:24,308 INFO L140 encePairwiseOnDemand]: 342/369 looper letters, 107 selfloop transitions, 86 changer transitions 0/441 dead transitions. [2024-11-08 17:27:24,308 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 353 places, 441 transitions, 1299 flow [2024-11-08 17:27:24,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:27:24,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:27:24,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1724 transitions. [2024-11-08 17:27:24,315 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7786811201445348 [2024-11-08 17:27:24,316 INFO L175 Difference]: Start difference. First operand has 348 places, 348 transitions, 727 flow. Second operand 6 states and 1724 transitions. [2024-11-08 17:27:24,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 353 places, 441 transitions, 1299 flow [2024-11-08 17:27:24,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 348 places, 441 transitions, 1289 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 17:27:24,346 INFO L231 Difference]: Finished difference. Result has 353 places, 433 transitions, 1283 flow [2024-11-08 17:27:24,348 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=717, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=348, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=322, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1283, PETRI_PLACES=353, PETRI_TRANSITIONS=433} [2024-11-08 17:27:24,351 INFO L277 CegarLoopForPetriNet]: 350 programPoint places, 3 predicate places. [2024-11-08 17:27:24,351 INFO L471 AbstractCegarLoop]: Abstraction has has 353 places, 433 transitions, 1283 flow [2024-11-08 17:27:24,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 257.8333333333333) internal successors, (1547), 6 states have internal predecessors, (1547), 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) [2024-11-08 17:27:24,353 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:27:24,354 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:27:24,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 17:27:24,354 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-08 17:27:24,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:27:24,359 INFO L85 PathProgramCache]: Analyzing trace with hash 509238684, now seen corresponding path program 1 times [2024-11-08 17:27:24,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:27:24,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058737243] [2024-11-08 17:27:24,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:27:24,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:27:24,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:27:24,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:27:24,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:27:24,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058737243] [2024-11-08 17:27:24,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058737243] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:27:24,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:27:24,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:27:24,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205200786] [2024-11-08 17:27:24,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:27:24,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:27:24,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:27:24,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:27:24,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:27:24,530 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 330 out of 369 [2024-11-08 17:27:24,532 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 353 places, 433 transitions, 1283 flow. Second operand has 3 states, 3 states have (on average 331.3333333333333) internal successors, (994), 3 states have internal predecessors, (994), 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) [2024-11-08 17:27:24,532 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:27:24,532 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 330 of 369 [2024-11-08 17:27:24,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:27:25,315 INFO L124 PetriNetUnfolderBase]: 354/2521 cut-off events. [2024-11-08 17:27:25,315 INFO L125 PetriNetUnfolderBase]: For 210/213 co-relation queries the response was YES. [2024-11-08 17:27:25,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3487 conditions, 2521 events. 354/2521 cut-off events. For 210/213 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 18217 event pairs, 114 based on Foata normal form. 2/2306 useless extension candidates. Maximal degree in co-relation 3438. Up to 254 conditions per place. [2024-11-08 17:27:25,355 INFO L140 encePairwiseOnDemand]: 365/369 looper letters, 25 selfloop transitions, 3 changer transitions 0/435 dead transitions. [2024-11-08 17:27:25,356 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 435 transitions, 1343 flow [2024-11-08 17:27:25,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:27:25,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:27:25,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1019 transitions. [2024-11-08 17:27:25,360 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9205058717253839 [2024-11-08 17:27:25,360 INFO L175 Difference]: Start difference. First operand has 353 places, 433 transitions, 1283 flow. Second operand 3 states and 1019 transitions. [2024-11-08 17:27:25,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 355 places, 435 transitions, 1343 flow [2024-11-08 17:27:25,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 355 places, 435 transitions, 1343 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 17:27:25,378 INFO L231 Difference]: Finished difference. Result has 356 places, 433 transitions, 1296 flow [2024-11-08 17:27:25,379 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=1283, PETRI_DIFFERENCE_MINUEND_PLACES=353, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=433, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=430, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1296, PETRI_PLACES=356, PETRI_TRANSITIONS=433} [2024-11-08 17:27:25,381 INFO L277 CegarLoopForPetriNet]: 350 programPoint places, 6 predicate places. [2024-11-08 17:27:25,381 INFO L471 AbstractCegarLoop]: Abstraction has has 356 places, 433 transitions, 1296 flow [2024-11-08 17:27:25,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 331.3333333333333) internal successors, (994), 3 states have internal predecessors, (994), 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) [2024-11-08 17:27:25,383 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:27:25,383 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:27:25,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 17:27:25,383 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t1_funErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-08 17:27:25,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:27:25,384 INFO L85 PathProgramCache]: Analyzing trace with hash 45237794, now seen corresponding path program 1 times [2024-11-08 17:27:25,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:27:25,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641246767] [2024-11-08 17:27:25,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:27:25,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:27:25,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:27:26,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:27:26,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:27:26,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641246767] [2024-11-08 17:27:26,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641246767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:27:26,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:27:26,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:27:26,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254070938] [2024-11-08 17:27:26,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:27:26,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:27:26,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:27:26,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:27:26,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:27:26,760 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 262 out of 369 [2024-11-08 17:27:26,762 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 356 places, 433 transitions, 1296 flow. Second operand has 6 states, 6 states have (on average 265.5) internal successors, (1593), 6 states have internal predecessors, (1593), 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) [2024-11-08 17:27:26,763 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:27:26,763 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 262 of 369 [2024-11-08 17:27:26,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand