./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a 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_dcff43f3-1884-422d-bcba-29a60bceb126/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcff43f3-1884-422d-bcba-29a60bceb126/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcff43f3-1884-422d-bcba-29a60bceb126/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcff43f3-1884-422d-bcba-29a60bceb126/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcff43f3-1884-422d-bcba-29a60bceb126/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcff43f3-1884-422d-bcba-29a60bceb126/bin/uautomizer-verify-4GaUIPS5ZU --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 b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:17:35,432 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:17:35,522 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcff43f3-1884-422d-bcba-29a60bceb126/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 22:17:35,528 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:17:35,529 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:17:35,561 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:17:35,562 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:17:35,563 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:17:35,564 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:17:35,564 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:17:35,565 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:17:35,565 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:17:35,566 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:17:35,566 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:17:35,566 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:17:35,567 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:17:35,567 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:17:35,567 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:17:35,571 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:17:35,571 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:17:35,574 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:17:35,575 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:17:35,575 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 22:17:35,575 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:17:35,576 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:17:35,576 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:17:35,576 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:17:35,577 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:17:35,579 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:17:35,579 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:17:35,579 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:17:35,580 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:17:35,580 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:17:35,580 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:17:35,581 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:17:35,581 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:17:35,581 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:17:35,581 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:17:35,582 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:17:35,583 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:17:35,583 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:17:35,584 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_dcff43f3-1884-422d-bcba-29a60bceb126/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcff43f3-1884-422d-bcba-29a60bceb126/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f [2024-10-31 22:17:35,889 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:17:35,929 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:17:35,937 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:17:35,938 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:17:35,941 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:17:35,943 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcff43f3-1884-422d-bcba-29a60bceb126/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i Unable to find full path for "g++" [2024-10-31 22:17:38,428 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:17:38,814 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:17:38,817 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcff43f3-1884-422d-bcba-29a60bceb126/sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i [2024-10-31 22:17:38,844 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcff43f3-1884-422d-bcba-29a60bceb126/bin/uautomizer-verify-4GaUIPS5ZU/data/fccd2580c/d2a3acf3b0ea4bbf9b10665ecd344897/FLAGb8d1ecd7f [2024-10-31 22:17:38,888 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcff43f3-1884-422d-bcba-29a60bceb126/bin/uautomizer-verify-4GaUIPS5ZU/data/fccd2580c/d2a3acf3b0ea4bbf9b10665ecd344897 [2024-10-31 22:17:38,891 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:17:38,898 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:17:38,901 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:17:38,905 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:17:38,916 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:17:38,921 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:17:38" (1/1) ... [2024-10-31 22:17:38,925 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1411d519 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:38, skipping insertion in model container [2024-10-31 22:17:38,929 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:17:38" (1/1) ... [2024-10-31 22:17:39,001 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:17:39,747 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:17:39,777 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:17:39,850 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:17:39,927 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:17:39,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:39 WrapperNode [2024-10-31 22:17:39,928 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:17:39,929 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:17:39,929 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:17:39,930 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:17:39,938 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:39" (1/1) ... [2024-10-31 22:17:39,960 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:39" (1/1) ... [2024-10-31 22:17:39,999 INFO L138 Inliner]: procedures = 263, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 85 [2024-10-31 22:17:40,000 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:17:40,002 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:17:40,003 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:17:40,003 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:17:40,014 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:39" (1/1) ... [2024-10-31 22:17:40,014 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:39" (1/1) ... [2024-10-31 22:17:40,018 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:39" (1/1) ... [2024-10-31 22:17:40,022 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:39" (1/1) ... [2024-10-31 22:17:40,037 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:39" (1/1) ... [2024-10-31 22:17:40,042 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:39" (1/1) ... [2024-10-31 22:17:40,044 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:39" (1/1) ... [2024-10-31 22:17:40,049 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:39" (1/1) ... [2024-10-31 22:17:40,055 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:17:40,056 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:17:40,056 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:17:40,056 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:17:40,058 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:39" (1/1) ... [2024-10-31 22:17:40,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:17:40,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcff43f3-1884-422d-bcba-29a60bceb126/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:17:40,096 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcff43f3-1884-422d-bcba-29a60bceb126/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:17:40,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcff43f3-1884-422d-bcba-29a60bceb126/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:17:40,135 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-31 22:17:40,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-31 22:17:40,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 22:17:40,136 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-31 22:17:40,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:17:40,136 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-31 22:17:40,137 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-31 22:17:40,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:17:40,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:17:40,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:17:40,139 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:17:40,329 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:17:40,331 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:17:40,604 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:17:40,604 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:17:40,686 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:17:40,686 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 22:17:40,686 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:17:40 BoogieIcfgContainer [2024-10-31 22:17:40,687 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:17:40,693 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:17:40,693 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:17:40,697 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:17:40,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:17:38" (1/3) ... [2024-10-31 22:17:40,715 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@742ded5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:17:40, skipping insertion in model container [2024-10-31 22:17:40,715 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:39" (2/3) ... [2024-10-31 22:17:40,715 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@742ded5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:17:40, skipping insertion in model container [2024-10-31 22:17:40,715 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:17:40" (3/3) ... [2024-10-31 22:17:40,717 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_10-ptrmunge_nr.i [2024-10-31 22:17:40,744 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:17:40,744 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-10-31 22:17:40,744 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:17:40,832 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-31 22:17:40,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 94 transitions, 195 flow [2024-10-31 22:17:40,925 INFO L124 PetriNetUnfolderBase]: 0/93 cut-off events. [2024-10-31 22:17:40,926 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:17:40,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 93 events. 0/93 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 66 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-10-31 22:17:40,929 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 94 transitions, 195 flow [2024-10-31 22:17:40,934 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 88 transitions, 179 flow [2024-10-31 22:17:40,943 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:17:40,951 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;@cd7a328, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:17:40,951 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-10-31 22:17:40,982 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:17:40,982 INFO L124 PetriNetUnfolderBase]: 0/53 cut-off events. [2024-10-31 22:17:40,982 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:17:40,983 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:17:40,983 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] [2024-10-31 22:17:40,984 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-31 22:17:40,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:17:40,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1709663426, now seen corresponding path program 1 times [2024-10-31 22:17:40,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:17:40,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017550366] [2024-10-31 22:17:40,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:41,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:17:41,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:42,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:17:42,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:17:42,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017550366] [2024-10-31 22:17:42,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017550366] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:17:42,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:17:42,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:17:42,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983644004] [2024-10-31 22:17:42,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:17:42,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:17:42,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:17:42,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:17:42,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:17:42,558 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 94 [2024-10-31 22:17:42,564 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 88 transitions, 179 flow. Second operand has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 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) [2024-10-31 22:17:42,565 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:17:42,565 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 94 [2024-10-31 22:17:42,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:17:42,877 INFO L124 PetriNetUnfolderBase]: 114/471 cut-off events. [2024-10-31 22:17:42,878 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:17:42,881 INFO L83 FinitePrefix]: Finished finitePrefix Result has 732 conditions, 471 events. 114/471 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2451 event pairs, 61 based on Foata normal form. 0/439 useless extension candidates. Maximal degree in co-relation 697. Up to 207 conditions per place. [2024-10-31 22:17:42,886 INFO L140 encePairwiseOnDemand]: 83/94 looper letters, 30 selfloop transitions, 22 changer transitions 0/117 dead transitions. [2024-10-31 22:17:42,886 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 117 transitions, 341 flow [2024-10-31 22:17:42,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:17:42,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:17:42,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 473 transitions. [2024-10-31 22:17:42,905 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8386524822695035 [2024-10-31 22:17:42,909 INFO L175 Difference]: Start difference. First operand has 92 places, 88 transitions, 179 flow. Second operand 6 states and 473 transitions. [2024-10-31 22:17:42,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 117 transitions, 341 flow [2024-10-31 22:17:42,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 117 transitions, 340 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:17:42,917 INFO L231 Difference]: Finished difference. Result has 101 places, 109 transitions, 328 flow [2024-10-31 22:17:42,920 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=328, PETRI_PLACES=101, PETRI_TRANSITIONS=109} [2024-10-31 22:17:42,923 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 9 predicate places. [2024-10-31 22:17:42,924 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 109 transitions, 328 flow [2024-10-31 22:17:42,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 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) [2024-10-31 22:17:42,924 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:17:42,925 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] [2024-10-31 22:17:42,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:17:42,925 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-31 22:17:42,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:17:42,926 INFO L85 PathProgramCache]: Analyzing trace with hash 914001375, now seen corresponding path program 1 times [2024-10-31 22:17:42,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:17:42,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237239850] [2024-10-31 22:17:42,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:42,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:17:42,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:43,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:17:43,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:17:43,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237239850] [2024-10-31 22:17:43,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237239850] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:17:43,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:17:43,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:17:43,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669851009] [2024-10-31 22:17:43,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:17:43,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:17:43,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:17:43,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:17:43,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:17:43,581 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 94 [2024-10-31 22:17:43,582 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 109 transitions, 328 flow. Second operand has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 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) [2024-10-31 22:17:43,583 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:17:43,583 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 94 [2024-10-31 22:17:43,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:17:43,826 INFO L124 PetriNetUnfolderBase]: 152/588 cut-off events. [2024-10-31 22:17:43,826 INFO L125 PetriNetUnfolderBase]: For 136/155 co-relation queries the response was YES. [2024-10-31 22:17:43,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1106 conditions, 588 events. 152/588 cut-off events. For 136/155 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 3336 event pairs, 61 based on Foata normal form. 5/564 useless extension candidates. Maximal degree in co-relation 1067. Up to 264 conditions per place. [2024-10-31 22:17:43,832 INFO L140 encePairwiseOnDemand]: 83/94 looper letters, 43 selfloop transitions, 26 changer transitions 0/138 dead transitions. [2024-10-31 22:17:43,833 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 138 transitions, 542 flow [2024-10-31 22:17:43,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:17:43,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:17:43,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 473 transitions. [2024-10-31 22:17:43,836 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8386524822695035 [2024-10-31 22:17:43,836 INFO L175 Difference]: Start difference. First operand has 101 places, 109 transitions, 328 flow. Second operand 6 states and 473 transitions. [2024-10-31 22:17:43,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 138 transitions, 542 flow [2024-10-31 22:17:43,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 138 transitions, 542 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:17:43,842 INFO L231 Difference]: Finished difference. Result has 111 places, 130 transitions, 512 flow [2024-10-31 22:17:43,843 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=512, PETRI_PLACES=111, PETRI_TRANSITIONS=130} [2024-10-31 22:17:43,844 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 19 predicate places. [2024-10-31 22:17:43,844 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 130 transitions, 512 flow [2024-10-31 22:17:43,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 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) [2024-10-31 22:17:43,845 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:17:43,845 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] [2024-10-31 22:17:43,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:17:43,845 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-31 22:17:43,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:17:43,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1024991904, now seen corresponding path program 1 times [2024-10-31 22:17:43,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:17:43,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675326313] [2024-10-31 22:17:43,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:43,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:17:43,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:44,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:17:44,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:17:44,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675326313] [2024-10-31 22:17:44,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675326313] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:17:44,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:17:44,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:17:44,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816706848] [2024-10-31 22:17:44,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:17:44,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:17:44,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:17:44,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:17:44,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:17:44,537 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 94 [2024-10-31 22:17:44,538 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 130 transitions, 512 flow. Second operand has 6 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 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) [2024-10-31 22:17:44,538 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:17:44,538 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 94 [2024-10-31 22:17:44,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:17:44,906 INFO L124 PetriNetUnfolderBase]: 292/943 cut-off events. [2024-10-31 22:17:44,907 INFO L125 PetriNetUnfolderBase]: For 589/609 co-relation queries the response was YES. [2024-10-31 22:17:44,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2305 conditions, 943 events. 292/943 cut-off events. For 589/609 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 5761 event pairs, 101 based on Foata normal form. 7/909 useless extension candidates. Maximal degree in co-relation 2261. Up to 528 conditions per place. [2024-10-31 22:17:44,915 INFO L140 encePairwiseOnDemand]: 79/94 looper letters, 68 selfloop transitions, 53 changer transitions 4/185 dead transitions. [2024-10-31 22:17:44,915 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 185 transitions, 1006 flow [2024-10-31 22:17:44,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:17:44,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:17:44,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 459 transitions. [2024-10-31 22:17:44,918 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8138297872340425 [2024-10-31 22:17:44,918 INFO L175 Difference]: Start difference. First operand has 111 places, 130 transitions, 512 flow. Second operand 6 states and 459 transitions. [2024-10-31 22:17:44,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 185 transitions, 1006 flow [2024-10-31 22:17:44,925 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 185 transitions, 1006 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:17:44,929 INFO L231 Difference]: Finished difference. Result has 121 places, 177 transitions, 994 flow [2024-10-31 22:17:44,930 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=512, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=994, PETRI_PLACES=121, PETRI_TRANSITIONS=177} [2024-10-31 22:17:44,931 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 29 predicate places. [2024-10-31 22:17:44,931 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 177 transitions, 994 flow [2024-10-31 22:17:44,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 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) [2024-10-31 22:17:44,932 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:17:44,932 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] [2024-10-31 22:17:44,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:17:44,932 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-31 22:17:44,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:17:44,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1016274529, now seen corresponding path program 1 times [2024-10-31 22:17:44,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:17:44,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226820528] [2024-10-31 22:17:44,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:44,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:17:44,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:45,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:17:45,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:17:45,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226820528] [2024-10-31 22:17:45,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226820528] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:17:45,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:17:45,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:17:45,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27240232] [2024-10-31 22:17:45,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:17:45,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:17:45,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:17:45,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:17:45,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:17:45,450 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 94 [2024-10-31 22:17:45,451 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 177 transitions, 994 flow. Second operand has 6 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 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) [2024-10-31 22:17:45,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:17:45,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 94 [2024-10-31 22:17:45,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:17:45,819 INFO L124 PetriNetUnfolderBase]: 396/1208 cut-off events. [2024-10-31 22:17:45,819 INFO L125 PetriNetUnfolderBase]: For 1618/1665 co-relation queries the response was YES. [2024-10-31 22:17:45,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3580 conditions, 1208 events. 396/1208 cut-off events. For 1618/1665 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 7721 event pairs, 107 based on Foata normal form. 4/1182 useless extension candidates. Maximal degree in co-relation 3531. Up to 673 conditions per place. [2024-10-31 22:17:45,830 INFO L140 encePairwiseOnDemand]: 79/94 looper letters, 105 selfloop transitions, 61 changer transitions 10/238 dead transitions. [2024-10-31 22:17:45,830 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 238 transitions, 1692 flow [2024-10-31 22:17:45,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:17:45,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:17:45,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 459 transitions. [2024-10-31 22:17:45,833 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8138297872340425 [2024-10-31 22:17:45,833 INFO L175 Difference]: Start difference. First operand has 121 places, 177 transitions, 994 flow. Second operand 6 states and 459 transitions. [2024-10-31 22:17:45,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 238 transitions, 1692 flow [2024-10-31 22:17:45,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 238 transitions, 1628 flow, removed 32 selfloop flow, removed 0 redundant places. [2024-10-31 22:17:45,887 INFO L231 Difference]: Finished difference. Result has 131 places, 224 transitions, 1516 flow [2024-10-31 22:17:45,888 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=936, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1516, PETRI_PLACES=131, PETRI_TRANSITIONS=224} [2024-10-31 22:17:45,889 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 39 predicate places. [2024-10-31 22:17:45,889 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 224 transitions, 1516 flow [2024-10-31 22:17:45,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 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) [2024-10-31 22:17:45,889 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:17:45,890 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] [2024-10-31 22:17:45,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:17:45,890 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-31 22:17:45,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:17:45,891 INFO L85 PathProgramCache]: Analyzing trace with hash -121785405, now seen corresponding path program 1 times [2024-10-31 22:17:45,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:17:45,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320169214] [2024-10-31 22:17:45,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:45,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:17:45,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:46,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:17:46,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:17:46,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320169214] [2024-10-31 22:17:46,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320169214] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:17:46,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:17:46,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-31 22:17:46,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51035372] [2024-10-31 22:17:46,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:17:46,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-31 22:17:46,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:17:46,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-31 22:17:46,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-10-31 22:17:47,499 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-10-31 22:17:47,501 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 224 transitions, 1516 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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) [2024-10-31 22:17:47,501 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:17:47,501 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-10-31 22:17:47,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:17:48,936 INFO L124 PetriNetUnfolderBase]: 799/2301 cut-off events. [2024-10-31 22:17:48,936 INFO L125 PetriNetUnfolderBase]: For 4918/5024 co-relation queries the response was YES. [2024-10-31 22:17:48,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7874 conditions, 2301 events. 799/2301 cut-off events. For 4918/5024 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 16801 event pairs, 66 based on Foata normal form. 38/2326 useless extension candidates. Maximal degree in co-relation 7818. Up to 587 conditions per place. [2024-10-31 22:17:48,967 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 288 selfloop transitions, 75 changer transitions 29/474 dead transitions. [2024-10-31 22:17:48,967 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 474 transitions, 4184 flow [2024-10-31 22:17:48,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-31 22:17:48,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-31 22:17:48,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1060 transitions. [2024-10-31 22:17:48,971 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.75177304964539 [2024-10-31 22:17:48,972 INFO L175 Difference]: Start difference. First operand has 131 places, 224 transitions, 1516 flow. Second operand 15 states and 1060 transitions. [2024-10-31 22:17:48,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 474 transitions, 4184 flow [2024-10-31 22:17:49,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 474 transitions, 4066 flow, removed 59 selfloop flow, removed 0 redundant places. [2024-10-31 22:17:49,035 INFO L231 Difference]: Finished difference. Result has 157 places, 284 transitions, 2335 flow [2024-10-31 22:17:49,036 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=1448, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2335, PETRI_PLACES=157, PETRI_TRANSITIONS=284} [2024-10-31 22:17:49,039 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 65 predicate places. [2024-10-31 22:17:49,039 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 284 transitions, 2335 flow [2024-10-31 22:17:49,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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) [2024-10-31 22:17:49,040 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:17:49,041 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] [2024-10-31 22:17:49,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:17:49,043 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-31 22:17:49,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:17:49,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1013121371, now seen corresponding path program 2 times [2024-10-31 22:17:49,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:17:49,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983801045] [2024-10-31 22:17:49,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:49,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:17:49,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:49,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:17:49,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:17:49,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983801045] [2024-10-31 22:17:49,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983801045] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:17:49,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:17:49,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-31 22:17:49,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38324256] [2024-10-31 22:17:49,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:17:49,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-31 22:17:49,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:17:49,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-31 22:17:49,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-10-31 22:17:50,579 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-10-31 22:17:50,580 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 284 transitions, 2335 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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) [2024-10-31 22:17:50,581 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:17:50,581 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-10-31 22:17:50,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:17:52,449 INFO L124 PetriNetUnfolderBase]: 1226/3469 cut-off events. [2024-10-31 22:17:52,449 INFO L125 PetriNetUnfolderBase]: For 11776/12020 co-relation queries the response was YES. [2024-10-31 22:17:52,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13335 conditions, 3469 events. 1226/3469 cut-off events. For 11776/12020 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 28071 event pairs, 103 based on Foata normal form. 83/3531 useless extension candidates. Maximal degree in co-relation 13264. Up to 931 conditions per place. [2024-10-31 22:17:52,492 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 296 selfloop transitions, 117 changer transitions 31/526 dead transitions. [2024-10-31 22:17:52,493 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 526 transitions, 5373 flow [2024-10-31 22:17:52,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-31 22:17:52,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-31 22:17:52,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1010 transitions. [2024-10-31 22:17:52,496 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7674772036474165 [2024-10-31 22:17:52,496 INFO L175 Difference]: Start difference. First operand has 157 places, 284 transitions, 2335 flow. Second operand 14 states and 1010 transitions. [2024-10-31 22:17:52,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 526 transitions, 5373 flow [2024-10-31 22:17:52,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 526 transitions, 5311 flow, removed 24 selfloop flow, removed 4 redundant places. [2024-10-31 22:17:52,632 INFO L231 Difference]: Finished difference. Result has 175 places, 356 transitions, 3732 flow [2024-10-31 22:17:52,633 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=2309, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=3732, PETRI_PLACES=175, PETRI_TRANSITIONS=356} [2024-10-31 22:17:52,635 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 83 predicate places. [2024-10-31 22:17:52,636 INFO L471 AbstractCegarLoop]: Abstraction has has 175 places, 356 transitions, 3732 flow [2024-10-31 22:17:52,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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) [2024-10-31 22:17:52,636 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:17:52,637 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] [2024-10-31 22:17:52,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:17:52,638 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-31 22:17:52,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:17:52,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1422582121, now seen corresponding path program 3 times [2024-10-31 22:17:52,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:17:52,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314257363] [2024-10-31 22:17:52,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:52,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:17:52,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:53,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:17:53,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:17:53,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314257363] [2024-10-31 22:17:53,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314257363] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:17:53,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:17:53,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-31 22:17:53,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459791708] [2024-10-31 22:17:53,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:17:53,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-31 22:17:53,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:17:53,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-31 22:17:53,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-10-31 22:17:54,128 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-10-31 22:17:54,129 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 356 transitions, 3732 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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) [2024-10-31 22:17:54,130 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:17:54,130 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-10-31 22:17:54,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:17:56,055 INFO L124 PetriNetUnfolderBase]: 1248/3486 cut-off events. [2024-10-31 22:17:56,056 INFO L125 PetriNetUnfolderBase]: For 17161/17542 co-relation queries the response was YES. [2024-10-31 22:17:56,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14744 conditions, 3486 events. 1248/3486 cut-off events. For 17161/17542 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 28180 event pairs, 78 based on Foata normal form. 128/3582 useless extension candidates. Maximal degree in co-relation 14665. Up to 1525 conditions per place. [2024-10-31 22:17:56,113 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 183 selfloop transitions, 158 changer transitions 29/452 dead transitions. [2024-10-31 22:17:56,113 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 452 transitions, 5407 flow [2024-10-31 22:17:56,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-31 22:17:56,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-31 22:17:56,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 852 transitions. [2024-10-31 22:17:56,117 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7553191489361702 [2024-10-31 22:17:56,117 INFO L175 Difference]: Start difference. First operand has 175 places, 356 transitions, 3732 flow. Second operand 12 states and 852 transitions. [2024-10-31 22:17:56,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 452 transitions, 5407 flow [2024-10-31 22:17:56,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 452 transitions, 5324 flow, removed 18 selfloop flow, removed 6 redundant places. [2024-10-31 22:17:56,319 INFO L231 Difference]: Finished difference. Result has 184 places, 379 transitions, 4663 flow [2024-10-31 22:17:56,319 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=3681, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=356, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=135, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4663, PETRI_PLACES=184, PETRI_TRANSITIONS=379} [2024-10-31 22:17:56,320 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 92 predicate places. [2024-10-31 22:17:56,320 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 379 transitions, 4663 flow [2024-10-31 22:17:56,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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) [2024-10-31 22:17:56,321 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:17:56,322 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] [2024-10-31 22:17:56,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:17:56,323 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-31 22:17:56,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:17:56,324 INFO L85 PathProgramCache]: Analyzing trace with hash -746214381, now seen corresponding path program 4 times [2024-10-31 22:17:56,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:17:56,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933267925] [2024-10-31 22:17:56,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:56,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:17:56,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:56,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:17:56,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:17:56,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933267925] [2024-10-31 22:17:56,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933267925] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:17:56,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:17:56,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-31 22:17:56,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333292327] [2024-10-31 22:17:56,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:17:56,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-31 22:17:56,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:17:56,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-31 22:17:56,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-10-31 22:17:57,712 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-10-31 22:17:57,714 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 379 transitions, 4663 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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) [2024-10-31 22:17:57,714 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:17:57,714 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-10-31 22:17:57,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:17:59,764 INFO L124 PetriNetUnfolderBase]: 1570/4367 cut-off events. [2024-10-31 22:17:59,764 INFO L125 PetriNetUnfolderBase]: For 27039/27493 co-relation queries the response was YES. [2024-10-31 22:17:59,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19506 conditions, 4367 events. 1570/4367 cut-off events. For 27039/27493 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 37130 event pairs, 137 based on Foata normal form. 155/4489 useless extension candidates. Maximal degree in co-relation 19425. Up to 812 conditions per place. [2024-10-31 22:17:59,834 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 527 selfloop transitions, 150 changer transitions 17/776 dead transitions. [2024-10-31 22:17:59,835 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 776 transitions, 10055 flow [2024-10-31 22:17:59,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-31 22:17:59,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-10-31 22:17:59,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1157 transitions. [2024-10-31 22:17:59,839 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.769281914893617 [2024-10-31 22:17:59,839 INFO L175 Difference]: Start difference. First operand has 184 places, 379 transitions, 4663 flow. Second operand 16 states and 1157 transitions. [2024-10-31 22:17:59,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 776 transitions, 10055 flow [2024-10-31 22:18:00,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 776 transitions, 9889 flow, removed 10 selfloop flow, removed 7 redundant places. [2024-10-31 22:18:00,086 INFO L231 Difference]: Finished difference. Result has 202 places, 440 transitions, 6151 flow [2024-10-31 22:18:00,087 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=4557, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=379, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=90, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=6151, PETRI_PLACES=202, PETRI_TRANSITIONS=440} [2024-10-31 22:18:00,087 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 110 predicate places. [2024-10-31 22:18:00,087 INFO L471 AbstractCegarLoop]: Abstraction has has 202 places, 440 transitions, 6151 flow [2024-10-31 22:18:00,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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) [2024-10-31 22:18:00,088 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:18:00,088 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] [2024-10-31 22:18:00,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:18:00,089 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-31 22:18:00,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:00,090 INFO L85 PathProgramCache]: Analyzing trace with hash -190314597, now seen corresponding path program 5 times [2024-10-31 22:18:00,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:00,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467938377] [2024-10-31 22:18:00,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:00,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:00,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:00,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:18:00,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:00,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467938377] [2024-10-31 22:18:00,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467938377] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:00,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:00,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-31 22:18:00,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204928458] [2024-10-31 22:18:00,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:00,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-31 22:18:00,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:00,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-31 22:18:00,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-10-31 22:18:01,725 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-10-31 22:18:01,727 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 440 transitions, 6151 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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) [2024-10-31 22:18:01,727 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:18:01,727 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-10-31 22:18:01,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:18:04,474 INFO L124 PetriNetUnfolderBase]: 2099/5778 cut-off events. [2024-10-31 22:18:04,475 INFO L125 PetriNetUnfolderBase]: For 47578/48321 co-relation queries the response was YES. [2024-10-31 22:18:04,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27414 conditions, 5778 events. 2099/5778 cut-off events. For 47578/48321 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 52069 event pairs, 153 based on Foata normal form. 176/5910 useless extension candidates. Maximal degree in co-relation 27323. Up to 2201 conditions per place. [2024-10-31 22:18:04,571 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 426 selfloop transitions, 221 changer transitions 21/750 dead transitions. [2024-10-31 22:18:04,572 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 750 transitions, 11340 flow [2024-10-31 22:18:04,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-31 22:18:04,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-31 22:18:04,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1007 transitions. [2024-10-31 22:18:04,575 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7651975683890577 [2024-10-31 22:18:04,575 INFO L175 Difference]: Start difference. First operand has 202 places, 440 transitions, 6151 flow. Second operand 14 states and 1007 transitions. [2024-10-31 22:18:04,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 750 transitions, 11340 flow