./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 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36463528-4820-4846-a68c-3d722a84aa08/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36463528-4820-4846-a68c-3d722a84aa08/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36463528-4820-4846-a68c-3d722a84aa08/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36463528-4820-4846-a68c-3d722a84aa08/bin/uautomizer-TMbwUNV5ro/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_36463528-4820-4846-a68c-3d722a84aa08/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36463528-4820-4846-a68c-3d722a84aa08/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --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 --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 18:36:44,585 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:36:44,587 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:36:44,610 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:36:44,611 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:36:44,612 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:36:44,613 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:36:44,615 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:36:44,617 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:36:44,618 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:36:44,619 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:36:44,620 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:36:44,621 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:36:44,622 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:36:44,623 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:36:44,624 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:36:44,625 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:36:44,626 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:36:44,628 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:36:44,630 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:36:44,632 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:36:44,634 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:36:44,635 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:36:44,636 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:36:44,640 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:36:44,641 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:36:44,641 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:36:44,642 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:36:44,643 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:36:44,644 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:36:44,645 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:36:44,646 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:36:44,647 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:36:44,648 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:36:44,649 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:36:44,649 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:36:44,650 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:36:44,651 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:36:44,651 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:36:44,652 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:36:44,653 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:36:44,663 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36463528-4820-4846-a68c-3d722a84aa08/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 18:36:44,695 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:36:44,696 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:36:44,696 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:36:44,696 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:36:44,697 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:36:44,697 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:36:44,698 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:36:44,698 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:36:44,699 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:36:44,699 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:36:44,699 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 18:36:44,699 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 18:36:44,700 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:36:44,700 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 18:36:44,700 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:36:44,700 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:36:44,701 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:36:44,701 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:36:44,701 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 18:36:44,701 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 18:36:44,701 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:36:44,702 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:36:44,702 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:36:44,702 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:36:44,702 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:36:44,703 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:36:44,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:36:44,703 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:36:44,703 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:36:44,703 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:36:44,704 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:36:44,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 18:36:44,704 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:36:44,704 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:36:44,704 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:36:44,704 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_36463528-4820-4846-a68c-3d722a84aa08/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36463528-4820-4846-a68c-3d722a84aa08/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f [2022-11-18 18:36:45,009 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:36:45,046 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:36:45,049 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:36:45,050 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:36:45,051 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:36:45,052 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36463528-4820-4846-a68c-3d722a84aa08/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i [2022-11-18 18:36:45,131 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36463528-4820-4846-a68c-3d722a84aa08/bin/uautomizer-TMbwUNV5ro/data/5f9c1c50d/4832a50d2b7d434e9f2828a3942be725/FLAG64cf5e2aa [2022-11-18 18:36:45,782 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:36:45,783 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36463528-4820-4846-a68c-3d722a84aa08/sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i [2022-11-18 18:36:45,799 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36463528-4820-4846-a68c-3d722a84aa08/bin/uautomizer-TMbwUNV5ro/data/5f9c1c50d/4832a50d2b7d434e9f2828a3942be725/FLAG64cf5e2aa [2022-11-18 18:36:46,044 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36463528-4820-4846-a68c-3d722a84aa08/bin/uautomizer-TMbwUNV5ro/data/5f9c1c50d/4832a50d2b7d434e9f2828a3942be725 [2022-11-18 18:36:46,046 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:36:46,048 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:36:46,056 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:36:46,057 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:36:46,060 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:36:46,061 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:36:46" (1/1) ... [2022-11-18 18:36:46,062 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f85e421 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:36:46, skipping insertion in model container [2022-11-18 18:36:46,065 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:36:46" (1/1) ... [2022-11-18 18:36:46,072 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:36:46,135 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:36:46,696 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:36:46,712 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:36:46,774 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:36:46,846 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:36:46,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:36:46 WrapperNode [2022-11-18 18:36:46,847 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:36:46,848 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:36:46,849 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:36:46,849 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:36:46,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:36:46" (1/1) ... [2022-11-18 18:36:46,884 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:36:46" (1/1) ... [2022-11-18 18:36:46,923 INFO L138 Inliner]: procedures = 263, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 91 [2022-11-18 18:36:46,923 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:36:46,924 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:36:46,924 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:36:46,924 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:36:46,935 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:36:46" (1/1) ... [2022-11-18 18:36:46,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:36:46" (1/1) ... [2022-11-18 18:36:46,950 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:36:46" (1/1) ... [2022-11-18 18:36:46,950 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:36:46" (1/1) ... [2022-11-18 18:36:46,958 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:36:46" (1/1) ... [2022-11-18 18:36:46,960 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:36:46" (1/1) ... [2022-11-18 18:36:46,961 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:36:46" (1/1) ... [2022-11-18 18:36:46,974 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:36:46" (1/1) ... [2022-11-18 18:36:46,981 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:36:46,982 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:36:46,982 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:36:46,982 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:36:46,991 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:36:46" (1/1) ... [2022-11-18 18:36:46,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:36:47,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36463528-4820-4846-a68c-3d722a84aa08/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:36:47,028 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36463528-4820-4846-a68c-3d722a84aa08/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:36:47,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36463528-4820-4846-a68c-3d722a84aa08/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:36:47,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 18:36:47,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 18:36:47,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 18:36:47,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 18:36:47,076 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 18:36:47,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:36:47,076 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-18 18:36:47,077 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-18 18:36:47,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 18:36:47,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:36:47,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:36:47,079 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 18:36:47,299 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:36:47,308 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:36:47,554 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:36:47,562 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:36:47,563 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 18:36:47,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:36:47 BoogieIcfgContainer [2022-11-18 18:36:47,565 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:36:47,567 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:36:47,567 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:36:47,581 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:36:47,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:36:46" (1/3) ... [2022-11-18 18:36:47,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30ff2d62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:36:47, skipping insertion in model container [2022-11-18 18:36:47,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:36:46" (2/3) ... [2022-11-18 18:36:47,583 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30ff2d62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:36:47, skipping insertion in model container [2022-11-18 18:36:47,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:36:47" (3/3) ... [2022-11-18 18:36:47,584 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_10-ptrmunge_nr.i [2022-11-18 18:36:47,593 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 18:36:47,605 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:36:47,605 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-11-18 18:36:47,605 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 18:36:47,725 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-18 18:36:47,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 110 places, 106 transitions, 220 flow [2022-11-18 18:36:47,844 INFO L130 PetriNetUnfolder]: 0/105 cut-off events. [2022-11-18 18:36:47,844 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 18:36:47,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 105 events. 0/105 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-11-18 18:36:47,848 INFO L82 GeneralOperation]: Start removeDead. Operand has 110 places, 106 transitions, 220 flow [2022-11-18 18:36:47,852 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 101 places, 97 transitions, 197 flow [2022-11-18 18:36:47,862 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:36:47,868 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@5f4e821b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:36:47,869 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-18 18:36:47,887 INFO L130 PetriNetUnfolder]: 0/59 cut-off events. [2022-11-18 18:36:47,888 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 18:36:47,888 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:36:47,889 INFO L209 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] [2022-11-18 18:36:47,889 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-18 18:36:47,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:36:47,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1787115312, now seen corresponding path program 1 times [2022-11-18 18:36:47,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:36:47,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571128557] [2022-11-18 18:36:47,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:36:47,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:36:48,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:49,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:36:49,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:36:49,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571128557] [2022-11-18 18:36:49,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571128557] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:36:49,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:36:49,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:36:49,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127121515] [2022-11-18 18:36:49,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:36:49,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:36:49,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:36:49,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:36:49,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:36:49,168 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 106 [2022-11-18 18:36:49,177 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 97 transitions, 197 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) [2022-11-18 18:36:49,181 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:36:49,181 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 106 [2022-11-18 18:36:49,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:36:49,878 INFO L130 PetriNetUnfolder]: 347/961 cut-off events. [2022-11-18 18:36:49,878 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 18:36:49,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1701 conditions, 961 events. 347/961 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 5361 event pairs, 170 based on Foata normal form. 0/861 useless extension candidates. Maximal degree in co-relation 1662. Up to 526 conditions per place. [2022-11-18 18:36:49,896 INFO L137 encePairwiseOnDemand]: 95/106 looper letters, 91 selfloop transitions, 22 changer transitions 0/175 dead transitions. [2022-11-18 18:36:49,896 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 175 transitions, 579 flow [2022-11-18 18:36:49,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:36:49,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 18:36:49,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 534 transitions. [2022-11-18 18:36:49,925 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.839622641509434 [2022-11-18 18:36:49,926 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 534 transitions. [2022-11-18 18:36:49,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 534 transitions. [2022-11-18 18:36:49,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:36:49,935 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 534 transitions. [2022-11-18 18:36:49,940 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 89.0) internal successors, (534), 6 states have internal predecessors, (534), 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) [2022-11-18 18:36:49,949 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 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) [2022-11-18 18:36:49,949 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 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) [2022-11-18 18:36:49,951 INFO L175 Difference]: Start difference. First operand has 101 places, 97 transitions, 197 flow. Second operand 6 states and 534 transitions. [2022-11-18 18:36:49,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 175 transitions, 579 flow [2022-11-18 18:36:49,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 175 transitions, 578 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 18:36:49,964 INFO L231 Difference]: Finished difference. Result has 110 places, 118 transitions, 346 flow [2022-11-18 18:36:49,967 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=346, PETRI_PLACES=110, PETRI_TRANSITIONS=118} [2022-11-18 18:36:49,971 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 9 predicate places. [2022-11-18 18:36:49,971 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 118 transitions, 346 flow [2022-11-18 18:36:49,972 INFO L496 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) [2022-11-18 18:36:49,973 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:36:49,974 INFO L209 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] [2022-11-18 18:36:49,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 18:36:49,976 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-18 18:36:49,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:36:49,979 INFO L85 PathProgramCache]: Analyzing trace with hash -721825185, now seen corresponding path program 1 times [2022-11-18 18:36:49,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:36:49,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215060874] [2022-11-18 18:36:49,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:36:49,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:36:50,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:50,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:36:50,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:36:50,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215060874] [2022-11-18 18:36:50,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215060874] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:36:50,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:36:50,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:36:50,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587497454] [2022-11-18 18:36:50,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:36:50,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:36:50,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:36:50,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:36:50,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:36:50,405 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 106 [2022-11-18 18:36:50,406 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 118 transitions, 346 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) [2022-11-18 18:36:50,406 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:36:50,407 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 106 [2022-11-18 18:36:50,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:36:50,882 INFO L130 PetriNetUnfolder]: 332/958 cut-off events. [2022-11-18 18:36:50,882 INFO L131 PetriNetUnfolder]: For 394/400 co-relation queries the response was YES. [2022-11-18 18:36:50,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2095 conditions, 958 events. 332/958 cut-off events. For 394/400 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 5421 event pairs, 155 based on Foata normal form. 0/881 useless extension candidates. Maximal degree in co-relation 2052. Up to 591 conditions per place. [2022-11-18 18:36:50,895 INFO L137 encePairwiseOnDemand]: 95/106 looper letters, 80 selfloop transitions, 26 changer transitions 0/168 dead transitions. [2022-11-18 18:36:50,895 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 168 transitions, 748 flow [2022-11-18 18:36:50,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:36:50,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 18:36:50,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 506 transitions. [2022-11-18 18:36:50,898 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7955974842767296 [2022-11-18 18:36:50,898 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 506 transitions. [2022-11-18 18:36:50,898 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 506 transitions. [2022-11-18 18:36:50,898 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:36:50,899 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 506 transitions. [2022-11-18 18:36:50,900 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 84.33333333333333) internal successors, (506), 6 states have internal predecessors, (506), 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) [2022-11-18 18:36:50,901 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 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) [2022-11-18 18:36:50,902 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 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) [2022-11-18 18:36:50,902 INFO L175 Difference]: Start difference. First operand has 110 places, 118 transitions, 346 flow. Second operand 6 states and 506 transitions. [2022-11-18 18:36:50,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 168 transitions, 748 flow [2022-11-18 18:36:50,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 168 transitions, 748 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 18:36:50,912 INFO L231 Difference]: Finished difference. Result has 120 places, 139 transitions, 530 flow [2022-11-18 18:36:50,913 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=530, PETRI_PLACES=120, PETRI_TRANSITIONS=139} [2022-11-18 18:36:50,914 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 19 predicate places. [2022-11-18 18:36:50,914 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 139 transitions, 530 flow [2022-11-18 18:36:50,914 INFO L496 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) [2022-11-18 18:36:50,915 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:36:50,915 INFO L209 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] [2022-11-18 18:36:50,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 18:36:50,916 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-18 18:36:50,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:36:50,917 INFO L85 PathProgramCache]: Analyzing trace with hash -802532585, now seen corresponding path program 1 times [2022-11-18 18:36:50,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:36:50,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083298714] [2022-11-18 18:36:50,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:36:50,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:36:50,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:51,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:36:51,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:36:51,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083298714] [2022-11-18 18:36:51,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083298714] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:36:51,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:36:51,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:36:51,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703909501] [2022-11-18 18:36:51,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:36:51,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:36:51,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:36:51,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:36:51,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:36:51,305 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 106 [2022-11-18 18:36:51,305 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 139 transitions, 530 flow. Second operand has 6 states, 6 states have (on average 70.66666666666667) internal successors, (424), 6 states have internal predecessors, (424), 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) [2022-11-18 18:36:51,305 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:36:51,306 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 106 [2022-11-18 18:36:51,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:36:51,751 INFO L130 PetriNetUnfolder]: 502/1324 cut-off events. [2022-11-18 18:36:51,751 INFO L131 PetriNetUnfolder]: For 780/786 co-relation queries the response was YES. [2022-11-18 18:36:51,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3293 conditions, 1324 events. 502/1324 cut-off events. For 780/786 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 7785 event pairs, 196 based on Foata normal form. 0/1229 useless extension candidates. Maximal degree in co-relation 3245. Up to 895 conditions per place. [2022-11-18 18:36:51,760 INFO L137 encePairwiseOnDemand]: 87/106 looper letters, 94 selfloop transitions, 69 changer transitions 4/227 dead transitions. [2022-11-18 18:36:51,760 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 227 transitions, 1200 flow [2022-11-18 18:36:51,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:36:51,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 18:36:51,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 523 transitions. [2022-11-18 18:36:51,763 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8223270440251572 [2022-11-18 18:36:51,763 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 523 transitions. [2022-11-18 18:36:51,763 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 523 transitions. [2022-11-18 18:36:51,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:36:51,763 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 523 transitions. [2022-11-18 18:36:51,765 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 87.16666666666667) internal successors, (523), 6 states have internal predecessors, (523), 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) [2022-11-18 18:36:51,766 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 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) [2022-11-18 18:36:51,767 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 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) [2022-11-18 18:36:51,767 INFO L175 Difference]: Start difference. First operand has 120 places, 139 transitions, 530 flow. Second operand 6 states and 523 transitions. [2022-11-18 18:36:51,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 227 transitions, 1200 flow [2022-11-18 18:36:51,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 227 transitions, 1200 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 18:36:51,777 INFO L231 Difference]: Finished difference. Result has 130 places, 202 transitions, 1116 flow [2022-11-18 18:36:51,777 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1116, PETRI_PLACES=130, PETRI_TRANSITIONS=202} [2022-11-18 18:36:51,778 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 29 predicate places. [2022-11-18 18:36:51,778 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 202 transitions, 1116 flow [2022-11-18 18:36:51,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 70.66666666666667) internal successors, (424), 6 states have internal predecessors, (424), 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) [2022-11-18 18:36:51,779 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:36:51,779 INFO L209 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] [2022-11-18 18:36:51,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 18:36:51,779 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-18 18:36:51,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:36:51,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1371415012, now seen corresponding path program 1 times [2022-11-18 18:36:51,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:36:51,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599294409] [2022-11-18 18:36:51,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:36:51,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:36:51,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:52,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:36:52,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:36:52,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599294409] [2022-11-18 18:36:52,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599294409] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:36:52,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:36:52,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:36:52,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580554268] [2022-11-18 18:36:52,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:36:52,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:36:52,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:36:52,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:36:52,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:36:52,078 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 106 [2022-11-18 18:36:52,079 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 202 transitions, 1116 flow. Second operand has 6 states, 6 states have (on average 70.66666666666667) internal successors, (424), 6 states have internal predecessors, (424), 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) [2022-11-18 18:36:52,079 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:36:52,079 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 106 [2022-11-18 18:36:52,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:36:52,611 INFO L130 PetriNetUnfolder]: 545/1421 cut-off events. [2022-11-18 18:36:52,611 INFO L131 PetriNetUnfolder]: For 1828/1839 co-relation queries the response was YES. [2022-11-18 18:36:52,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4543 conditions, 1421 events. 545/1421 cut-off events. For 1828/1839 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 8599 event pairs, 155 based on Foata normal form. 0/1367 useless extension candidates. Maximal degree in co-relation 4490. Up to 995 conditions per place. [2022-11-18 18:36:52,624 INFO L137 encePairwiseOnDemand]: 91/106 looper letters, 145 selfloop transitions, 67 changer transitions 0/273 dead transitions. [2022-11-18 18:36:52,624 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 273 transitions, 1958 flow [2022-11-18 18:36:52,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:36:52,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 18:36:52,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 499 transitions. [2022-11-18 18:36:52,626 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7845911949685535 [2022-11-18 18:36:52,627 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 499 transitions. [2022-11-18 18:36:52,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 499 transitions. [2022-11-18 18:36:52,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:36:52,627 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 499 transitions. [2022-11-18 18:36:52,629 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 83.16666666666667) internal successors, (499), 6 states have internal predecessors, (499), 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) [2022-11-18 18:36:52,630 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 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) [2022-11-18 18:36:52,631 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 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) [2022-11-18 18:36:52,631 INFO L175 Difference]: Start difference. First operand has 130 places, 202 transitions, 1116 flow. Second operand 6 states and 499 transitions. [2022-11-18 18:36:52,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 273 transitions, 1958 flow [2022-11-18 18:36:52,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 273 transitions, 1894 flow, removed 32 selfloop flow, removed 0 redundant places. [2022-11-18 18:36:52,651 INFO L231 Difference]: Finished difference. Result has 140 places, 255 transitions, 1704 flow [2022-11-18 18:36:52,652 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=1058, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1704, PETRI_PLACES=140, PETRI_TRANSITIONS=255} [2022-11-18 18:36:52,653 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 39 predicate places. [2022-11-18 18:36:52,653 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 255 transitions, 1704 flow [2022-11-18 18:36:52,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 70.66666666666667) internal successors, (424), 6 states have internal predecessors, (424), 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) [2022-11-18 18:36:52,653 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:36:52,654 INFO L209 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] [2022-11-18 18:36:52,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 18:36:52,654 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-18 18:36:52,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:36:52,655 INFO L85 PathProgramCache]: Analyzing trace with hash -818792055, now seen corresponding path program 1 times [2022-11-18 18:36:52,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:36:52,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091885495] [2022-11-18 18:36:52,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:36:52,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:36:52,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:53,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:36:53,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:36:53,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091885495] [2022-11-18 18:36:53,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091885495] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:36:53,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:36:53,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 18:36:53,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310049889] [2022-11-18 18:36:53,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:36:53,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 18:36:53,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:36:53,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 18:36:53,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-18 18:36:53,345 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-18 18:36:53,346 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 255 transitions, 1704 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 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) [2022-11-18 18:36:53,346 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:36:53,346 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-18 18:36:53,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:36:55,022 INFO L130 PetriNetUnfolder]: 1216/3141 cut-off events. [2022-11-18 18:36:55,022 INFO L131 PetriNetUnfolder]: For 6121/6127 co-relation queries the response was YES. [2022-11-18 18:36:55,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11141 conditions, 3141 events. 1216/3141 cut-off events. For 6121/6127 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 22357 event pairs, 152 based on Foata normal form. 11/3084 useless extension candidates. Maximal degree in co-relation 11079. Up to 1123 conditions per place. [2022-11-18 18:36:55,054 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 455 selfloop transitions, 70 changer transitions 2/581 dead transitions. [2022-11-18 18:36:55,054 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 581 transitions, 5158 flow [2022-11-18 18:36:55,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 18:36:55,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-18 18:36:55,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1105 transitions. [2022-11-18 18:36:55,058 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6949685534591195 [2022-11-18 18:36:55,058 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1105 transitions. [2022-11-18 18:36:55,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1105 transitions. [2022-11-18 18:36:55,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:36:55,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1105 transitions. [2022-11-18 18:36:55,061 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 73.66666666666667) internal successors, (1105), 15 states have internal predecessors, (1105), 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) [2022-11-18 18:36:55,064 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 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) [2022-11-18 18:36:55,065 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 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) [2022-11-18 18:36:55,066 INFO L175 Difference]: Start difference. First operand has 140 places, 255 transitions, 1704 flow. Second operand 15 states and 1105 transitions. [2022-11-18 18:36:55,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 581 transitions, 5158 flow [2022-11-18 18:36:55,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 581 transitions, 5010 flow, removed 74 selfloop flow, removed 0 redundant places. [2022-11-18 18:36:55,123 INFO L231 Difference]: Finished difference. Result has 162 places, 312 transitions, 2484 flow [2022-11-18 18:36:55,123 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=1630, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2484, PETRI_PLACES=162, PETRI_TRANSITIONS=312} [2022-11-18 18:36:55,124 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 61 predicate places. [2022-11-18 18:36:55,125 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 312 transitions, 2484 flow [2022-11-18 18:36:55,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 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) [2022-11-18 18:36:55,125 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:36:55,126 INFO L209 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] [2022-11-18 18:36:55,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 18:36:55,126 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-18 18:36:55,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:36:55,127 INFO L85 PathProgramCache]: Analyzing trace with hash 785038075, now seen corresponding path program 2 times [2022-11-18 18:36:55,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:36:55,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118673882] [2022-11-18 18:36:55,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:36:55,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:36:55,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:55,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:36:55,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:36:55,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118673882] [2022-11-18 18:36:55,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118673882] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:36:55,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:36:55,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 18:36:55,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008594542] [2022-11-18 18:36:55,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:36:55,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 18:36:55,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:36:55,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 18:36:55,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-11-18 18:36:55,952 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-18 18:36:55,953 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 312 transitions, 2484 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 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) [2022-11-18 18:36:55,954 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:36:55,954 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-18 18:36:55,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:36:57,620 INFO L130 PetriNetUnfolder]: 1266/3256 cut-off events. [2022-11-18 18:36:57,620 INFO L131 PetriNetUnfolder]: For 8605/8623 co-relation queries the response was YES. [2022-11-18 18:36:57,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12343 conditions, 3256 events. 1266/3256 cut-off events. For 8605/8623 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 23485 event pairs, 187 based on Foata normal form. 5/3190 useless extension candidates. Maximal degree in co-relation 12270. Up to 1998 conditions per place. [2022-11-18 18:36:57,655 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 282 selfloop transitions, 95 changer transitions 0/431 dead transitions. [2022-11-18 18:36:57,655 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 431 transitions, 4124 flow [2022-11-18 18:36:57,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 18:36:57,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-18 18:36:57,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 886 transitions. [2022-11-18 18:36:57,658 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6965408805031447 [2022-11-18 18:36:57,658 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 886 transitions. [2022-11-18 18:36:57,659 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 886 transitions. [2022-11-18 18:36:57,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:36:57,659 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 886 transitions. [2022-11-18 18:36:57,662 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 73.83333333333333) internal successors, (886), 12 states have internal predecessors, (886), 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) [2022-11-18 18:36:57,664 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 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) [2022-11-18 18:36:57,665 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 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) [2022-11-18 18:36:57,665 INFO L175 Difference]: Start difference. First operand has 162 places, 312 transitions, 2484 flow. Second operand 12 states and 886 transitions. [2022-11-18 18:36:57,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 431 transitions, 4124 flow [2022-11-18 18:36:57,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 431 transitions, 4109 flow, removed 6 selfloop flow, removed 2 redundant places. [2022-11-18 18:36:57,733 INFO L231 Difference]: Finished difference. Result has 175 places, 336 transitions, 3175 flow [2022-11-18 18:36:57,733 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=2473, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3175, PETRI_PLACES=175, PETRI_TRANSITIONS=336} [2022-11-18 18:36:57,734 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 74 predicate places. [2022-11-18 18:36:57,734 INFO L495 AbstractCegarLoop]: Abstraction has has 175 places, 336 transitions, 3175 flow [2022-11-18 18:36:57,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 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) [2022-11-18 18:36:57,735 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:36:57,735 INFO L209 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] [2022-11-18 18:36:57,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 18:36:57,736 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-18 18:36:57,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:36:57,736 INFO L85 PathProgramCache]: Analyzing trace with hash -321174779, now seen corresponding path program 1 times [2022-11-18 18:36:57,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:36:57,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391713306] [2022-11-18 18:36:57,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:36:57,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:36:57,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:58,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:36:58,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:36:58,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391713306] [2022-11-18 18:36:58,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391713306] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:36:58,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:36:58,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 18:36:58,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752345764] [2022-11-18 18:36:58,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:36:58,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 18:36:58,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:36:58,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 18:36:58,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-11-18 18:36:58,434 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-18 18:36:58,435 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 336 transitions, 3175 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 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) [2022-11-18 18:36:58,435 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:36:58,435 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-18 18:36:58,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:37:00,894 INFO L130 PetriNetUnfolder]: 1954/5075 cut-off events. [2022-11-18 18:37:00,894 INFO L131 PetriNetUnfolder]: For 17556/17573 co-relation queries the response was YES. [2022-11-18 18:37:00,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19812 conditions, 5075 events. 1954/5075 cut-off events. For 17556/17573 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 40836 event pairs, 222 based on Foata normal form. 13/4983 useless extension candidates. Maximal degree in co-relation 19734. Up to 1264 conditions per place. [2022-11-18 18:37:00,979 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 695 selfloop transitions, 107 changer transitions 7/863 dead transitions. [2022-11-18 18:37:00,979 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 863 transitions, 9124 flow [2022-11-18 18:37:00,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 18:37:00,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-18 18:37:00,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1138 transitions. [2022-11-18 18:37:00,984 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7668463611859838 [2022-11-18 18:37:00,985 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1138 transitions. [2022-11-18 18:37:00,985 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1138 transitions. [2022-11-18 18:37:00,986 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:37:00,986 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1138 transitions. [2022-11-18 18:37:00,989 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 81.28571428571429) internal successors, (1138), 14 states have internal predecessors, (1138), 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) [2022-11-18 18:37:00,993 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 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) [2022-11-18 18:37:00,993 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 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) [2022-11-18 18:37:00,994 INFO L175 Difference]: Start difference. First operand has 175 places, 336 transitions, 3175 flow. Second operand 14 states and 1138 transitions. [2022-11-18 18:37:00,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 863 transitions, 9124 flow [2022-11-18 18:37:01,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 863 transitions, 8953 flow, removed 5 selfloop flow, removed 7 redundant places. [2022-11-18 18:37:01,145 INFO L231 Difference]: Finished difference. Result has 191 places, 428 transitions, 4700 flow [2022-11-18 18:37:01,146 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=3113, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=4700, PETRI_PLACES=191, PETRI_TRANSITIONS=428} [2022-11-18 18:37:01,147 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 90 predicate places. [2022-11-18 18:37:01,148 INFO L495 AbstractCegarLoop]: Abstraction has has 191 places, 428 transitions, 4700 flow [2022-11-18 18:37:01,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 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) [2022-11-18 18:37:01,149 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:37:01,149 INFO L209 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] [2022-11-18 18:37:01,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 18:37:01,149 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-18 18:37:01,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:37:01,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1552984403, now seen corresponding path program 3 times [2022-11-18 18:37:01,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:37:01,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387636177] [2022-11-18 18:37:01,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:37:01,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:37:01,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:01,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:37:01,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:37:01,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387636177] [2022-11-18 18:37:01,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387636177] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:37:01,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:37:01,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 18:37:01,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464520170] [2022-11-18 18:37:01,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:37:01,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 18:37:01,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:37:01,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 18:37:01,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-18 18:37:01,934 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-18 18:37:01,935 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 428 transitions, 4700 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 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) [2022-11-18 18:37:01,935 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:37:01,935 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-18 18:37:01,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:37:04,217 INFO L130 PetriNetUnfolder]: 2044/5251 cut-off events. [2022-11-18 18:37:04,218 INFO L131 PetriNetUnfolder]: For 23982/24012 co-relation queries the response was YES. [2022-11-18 18:37:04,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22125 conditions, 5251 events. 2044/5251 cut-off events. For 23982/24012 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 42563 event pairs, 321 based on Foata normal form. 13/5150 useless extension candidates. Maximal degree in co-relation 22037. Up to 3165 conditions per place. [2022-11-18 18:37:04,294 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 413 selfloop transitions, 146 changer transitions 0/613 dead transitions. [2022-11-18 18:37:04,294 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 613 transitions, 7639 flow [2022-11-18 18:37:04,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 18:37:04,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-18 18:37:04,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1023 transitions. [2022-11-18 18:37:04,298 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6893530997304582 [2022-11-18 18:37:04,298 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1023 transitions. [2022-11-18 18:37:04,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1023 transitions. [2022-11-18 18:37:04,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:37:04,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1023 transitions. [2022-11-18 18:37:04,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 73.07142857142857) internal successors, (1023), 14 states have internal predecessors, (1023), 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) [2022-11-18 18:37:04,305 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 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) [2022-11-18 18:37:04,307 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 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) [2022-11-18 18:37:04,307 INFO L175 Difference]: Start difference. First operand has 191 places, 428 transitions, 4700 flow. Second operand 14 states and 1023 transitions. [2022-11-18 18:37:04,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 613 transitions, 7639 flow [2022-11-18 18:37:04,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 613 transitions, 7609 flow, removed 9 selfloop flow, removed 3 redundant places. [2022-11-18 18:37:04,495 INFO L231 Difference]: Finished difference. Result has 208 places, 465 transitions, 5885 flow [2022-11-18 18:37:04,495 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=4685, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=109, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=5885, PETRI_PLACES=208, PETRI_TRANSITIONS=465} [2022-11-18 18:37:04,499 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 107 predicate places. [2022-11-18 18:37:04,499 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 465 transitions, 5885 flow [2022-11-18 18:37:04,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 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) [2022-11-18 18:37:04,500 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:37:04,500 INFO L209 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] [2022-11-18 18:37:04,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 18:37:04,500 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-18 18:37:04,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:37:04,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1044746357, now seen corresponding path program 2 times [2022-11-18 18:37:04,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:37:04,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091615586] [2022-11-18 18:37:04,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:37:04,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:37:04,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:05,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:37:05,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:37:05,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091615586] [2022-11-18 18:37:05,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091615586] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:37:05,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:37:05,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 18:37:05,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085085277] [2022-11-18 18:37:05,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:37:05,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 18:37:05,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:37:05,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 18:37:05,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-18 18:37:05,102 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-18 18:37:05,103 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 465 transitions, 5885 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 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) [2022-11-18 18:37:05,104 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:37:05,104 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-18 18:37:05,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:37:07,790 INFO L130 PetriNetUnfolder]: 2164/5599 cut-off events. [2022-11-18 18:37:07,790 INFO L131 PetriNetUnfolder]: For 32518/32538 co-relation queries the response was YES. [2022-11-18 18:37:07,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24583 conditions, 5599 events. 2164/5599 cut-off events. For 32518/32538 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 45899 event pairs, 296 based on Foata normal form. 23/5511 useless extension candidates. Maximal degree in co-relation 24488. Up to 1436 conditions per place. [2022-11-18 18:37:07,874 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 757 selfloop transitions, 134 changer transitions 8/953 dead transitions. [2022-11-18 18:37:07,875 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 953 transitions, 11900 flow [2022-11-18 18:37:07,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 18:37:07,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-18 18:37:07,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1218 transitions. [2022-11-18 18:37:07,879 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7660377358490567 [2022-11-18 18:37:07,880 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1218 transitions. [2022-11-18 18:37:07,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1218 transitions. [2022-11-18 18:37:07,881 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:37:07,881 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1218 transitions. [2022-11-18 18:37:07,885 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 81.2) internal successors, (1218), 15 states have internal predecessors, (1218), 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) [2022-11-18 18:37:07,888 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 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) [2022-11-18 18:37:07,889 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 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) [2022-11-18 18:37:07,889 INFO L175 Difference]: Start difference. First operand has 208 places, 465 transitions, 5885 flow. Second operand 15 states and 1218 transitions. [2022-11-18 18:37:07,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 953 transitions, 11900 flow [2022-11-18 18:37:08,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 953 transitions, 11712 flow, removed 32 selfloop flow, removed 6 redundant places. [2022-11-18 18:37:08,148 INFO L231 Difference]: Finished difference. Result has 221 places, 496 transitions, 6721 flow [2022-11-18 18:37:08,149 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=5784, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=465, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=342, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=6721, PETRI_PLACES=221, PETRI_TRANSITIONS=496} [2022-11-18 18:37:08,150 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 120 predicate places. [2022-11-18 18:37:08,150 INFO L495 AbstractCegarLoop]: Abstraction has has 221 places, 496 transitions, 6721 flow [2022-11-18 18:37:08,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 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) [2022-11-18 18:37:08,151 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:37:08,151 INFO L209 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] [2022-11-18 18:37:08,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 18:37:08,151 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-18 18:37:08,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:37:08,152 INFO L85 PathProgramCache]: Analyzing trace with hash 634827701, now seen corresponding path program 4 times [2022-11-18 18:37:08,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:37:08,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47866260] [2022-11-18 18:37:08,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:37:08,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:37:08,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:08,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:37:08,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:37:08,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47866260] [2022-11-18 18:37:08,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47866260] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:37:08,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:37:08,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 18:37:08,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808017788] [2022-11-18 18:37:08,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:37:08,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 18:37:08,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:37:08,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 18:37:08,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-11-18 18:37:08,860 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-18 18:37:08,862 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 496 transitions, 6721 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 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) [2022-11-18 18:37:08,862 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:37:08,862 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-18 18:37:08,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:37:11,228 INFO L130 PetriNetUnfolder]: 2313/5907 cut-off events. [2022-11-18 18:37:11,228 INFO L131 PetriNetUnfolder]: For 41560/41594 co-relation queries the response was YES. [2022-11-18 18:37:11,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27375 conditions, 5907 events. 2313/5907 cut-off events. For 41560/41594 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 49064 event pairs, 365 based on Foata normal form. 15/5799 useless extension candidates. Maximal degree in co-relation 27275. Up to 3397 conditions per place. [2022-11-18 18:37:11,297 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 469 selfloop transitions, 183 changer transitions 0/706 dead transitions. [2022-11-18 18:37:11,297 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 706 transitions, 10421 flow [2022-11-18 18:37:11,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 18:37:11,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-18 18:37:11,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1026 transitions. [2022-11-18 18:37:11,301 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6913746630727763 [2022-11-18 18:37:11,301 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1026 transitions. [2022-11-18 18:37:11,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1026 transitions. [2022-11-18 18:37:11,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:37:11,302 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1026 transitions. [2022-11-18 18:37:11,311 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 73.28571428571429) internal successors, (1026), 14 states have internal predecessors, (1026), 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) [2022-11-18 18:37:11,314 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 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) [2022-11-18 18:37:11,318 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 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) [2022-11-18 18:37:11,319 INFO L175 Difference]: Start difference. First operand has 221 places, 496 transitions, 6721 flow. Second operand 14 states and 1026 transitions. [2022-11-18 18:37:11,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 706 transitions, 10421 flow [2022-11-18 18:37:11,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 706 transitions, 10233 flow, removed 16 selfloop flow, removed 8 redundant places. [2022-11-18 18:37:11,607 INFO L231 Difference]: Finished difference. Result has 233 places, 546 transitions, 8119 flow [2022-11-18 18:37:11,609 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=6601, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=496, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=135, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=331, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=8119, PETRI_PLACES=233, PETRI_TRANSITIONS=546} [2022-11-18 18:37:11,610 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 132 predicate places. [2022-11-18 18:37:11,610 INFO L495 AbstractCegarLoop]: Abstraction has has 233 places, 546 transitions, 8119 flow [2022-11-18 18:37:11,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 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) [2022-11-18 18:37:11,611 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:37:11,611 INFO L209 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] [2022-11-18 18:37:11,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 18:37:11,611 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-18 18:37:11,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:37:11,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1793416745, now seen corresponding path program 3 times [2022-11-18 18:37:11,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:37:11,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560066705] [2022-11-18 18:37:11,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:37:11,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:37:11,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:12,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:37:12,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:37:12,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560066705] [2022-11-18 18:37:12,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560066705] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:37:12,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:37:12,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 18:37:12,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110295024] [2022-11-18 18:37:12,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:37:12,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 18:37:12,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:37:12,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 18:37:12,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-11-18 18:37:12,159 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-18 18:37:12,160 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 546 transitions, 8119 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 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) [2022-11-18 18:37:12,160 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:37:12,160 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-18 18:37:12,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:37:15,014 INFO L130 PetriNetUnfolder]: 2460/6333 cut-off events. [2022-11-18 18:37:15,014 INFO L131 PetriNetUnfolder]: For 51119/51143 co-relation queries the response was YES. [2022-11-18 18:37:15,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30249 conditions, 6333 events. 2460/6333 cut-off events. For 51119/51143 co-relation queries the response was YES. Maximal size of possible extension queue 265. Compared 53357 event pairs, 345 based on Foata normal form. 25/6235 useless extension candidates. Maximal degree in co-relation 30142. Up to 1719 conditions per place. [2022-11-18 18:37:15,100 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 833 selfloop transitions, 168 changer transitions 8/1063 dead transitions. [2022-11-18 18:37:15,100 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 1063 transitions, 15105 flow [2022-11-18 18:37:15,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 18:37:15,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-18 18:37:15,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1220 transitions. [2022-11-18 18:37:15,105 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7672955974842768 [2022-11-18 18:37:15,105 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1220 transitions. [2022-11-18 18:37:15,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1220 transitions. [2022-11-18 18:37:15,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:37:15,106 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1220 transitions. [2022-11-18 18:37:15,110 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 81.33333333333333) internal successors, (1220), 15 states have internal predecessors, (1220), 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) [2022-11-18 18:37:15,113 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 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) [2022-11-18 18:37:15,114 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 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) [2022-11-18 18:37:15,115 INFO L175 Difference]: Start difference. First operand has 233 places, 546 transitions, 8119 flow. Second operand 15 states and 1220 transitions. [2022-11-18 18:37:15,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 1063 transitions, 15105 flow [2022-11-18 18:37:15,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 1063 transitions, 14893 flow, removed 66 selfloop flow, removed 5 redundant places. [2022-11-18 18:37:15,436 INFO L231 Difference]: Finished difference. Result has 248 places, 591 transitions, 9391 flow [2022-11-18 18:37:15,436 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=7999, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=546, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=128, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=9391, PETRI_PLACES=248, PETRI_TRANSITIONS=591} [2022-11-18 18:37:15,437 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 147 predicate places. [2022-11-18 18:37:15,437 INFO L495 AbstractCegarLoop]: Abstraction has has 248 places, 591 transitions, 9391 flow [2022-11-18 18:37:15,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 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) [2022-11-18 18:37:15,437 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:37:15,437 INFO L209 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] [2022-11-18 18:37:15,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 18:37:15,438 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-18 18:37:15,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:37:15,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1825936771, now seen corresponding path program 5 times [2022-11-18 18:37:15,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:37:15,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917942007] [2022-11-18 18:37:15,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:37:15,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:37:15,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:15,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:37:15,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:37:15,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917942007] [2022-11-18 18:37:15,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917942007] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:37:15,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:37:15,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 18:37:15,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736695855] [2022-11-18 18:37:15,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:37:15,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 18:37:15,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:37:15,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 18:37:15,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-18 18:37:15,959 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-18 18:37:15,959 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 591 transitions, 9391 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 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) [2022-11-18 18:37:15,960 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:37:15,960 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-18 18:37:15,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:37:18,541 INFO L130 PetriNetUnfolder]: 2648/6739 cut-off events. [2022-11-18 18:37:18,541 INFO L131 PetriNetUnfolder]: For 64389/64427 co-relation queries the response was YES. [2022-11-18 18:37:18,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34031 conditions, 6739 events. 2648/6739 cut-off events. For 64389/64427 co-relation queries the response was YES. Maximal size of possible extension queue 289. Compared 57472 event pairs, 442 based on Foata normal form. 17/6622 useless extension candidates. Maximal degree in co-relation 33918. Up to 3666 conditions per place. [2022-11-18 18:37:18,605 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 542 selfloop transitions, 220 changer transitions 0/816 dead transitions. [2022-11-18 18:37:18,605 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 816 transitions, 13642 flow [2022-11-18 18:37:18,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 18:37:18,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-18 18:37:18,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1026 transitions. [2022-11-18 18:37:18,609 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6913746630727763 [2022-11-18 18:37:18,609 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1026 transitions. [2022-11-18 18:37:18,609 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1026 transitions. [2022-11-18 18:37:18,610 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:37:18,610 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1026 transitions. [2022-11-18 18:37:18,612 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 73.28571428571429) internal successors, (1026), 14 states have internal predecessors, (1026), 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) [2022-11-18 18:37:18,615 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 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) [2022-11-18 18:37:18,615 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 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) [2022-11-18 18:37:18,616 INFO L175 Difference]: Start difference. First operand has 248 places, 591 transitions, 9391 flow. Second operand 14 states and 1026 transitions. [2022-11-18 18:37:18,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 816 transitions, 13642 flow [2022-11-18 18:37:19,021 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 816 transitions, 13383 flow, removed 33 selfloop flow, removed 8 redundant places. [2022-11-18 18:37:19,033 INFO L231 Difference]: Finished difference. Result has 261 places, 644 transitions, 11008 flow [2022-11-18 18:37:19,034 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=9226, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=591, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=169, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=385, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=11008, PETRI_PLACES=261, PETRI_TRANSITIONS=644} [2022-11-18 18:37:19,034 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 160 predicate places. [2022-11-18 18:37:19,035 INFO L495 AbstractCegarLoop]: Abstraction has has 261 places, 644 transitions, 11008 flow [2022-11-18 18:37:19,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 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) [2022-11-18 18:37:19,035 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:37:19,035 INFO L209 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] [2022-11-18 18:37:19,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 18:37:19,036 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-18 18:37:19,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:37:19,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1941510385, now seen corresponding path program 4 times [2022-11-18 18:37:19,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:37:19,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283737827] [2022-11-18 18:37:19,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:37:19,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:37:19,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:19,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:37:19,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:37:19,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283737827] [2022-11-18 18:37:19,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283737827] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:37:19,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:37:19,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 18:37:19,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119037188] [2022-11-18 18:37:19,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:37:19,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 18:37:19,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:37:19,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 18:37:19,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-18 18:37:19,546 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-18 18:37:19,547 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 644 transitions, 11008 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 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) [2022-11-18 18:37:19,547 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:37:19,548 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-18 18:37:19,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:37:22,914 INFO L130 PetriNetUnfolder]: 2821/7181 cut-off events. [2022-11-18 18:37:22,914 INFO L131 PetriNetUnfolder]: For 78907/78935 co-relation queries the response was YES. [2022-11-18 18:37:22,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37614 conditions, 7181 events. 2821/7181 cut-off events. For 78907/78935 co-relation queries the response was YES. Maximal size of possible extension queue 309. Compared 61953 event pairs, 487 based on Foata normal form. 27/7071 useless extension candidates. Maximal degree in co-relation 37493. Up to 2074 conditions per place. [2022-11-18 18:37:23,002 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 917 selfloop transitions, 197 changer transitions 6/1174 dead transitions. [2022-11-18 18:37:23,003 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 1174 transitions, 18850 flow [2022-11-18 18:37:23,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 18:37:23,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-18 18:37:23,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1220 transitions. [2022-11-18 18:37:23,006 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7672955974842768 [2022-11-18 18:37:23,006 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1220 transitions. [2022-11-18 18:37:23,006 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1220 transitions. [2022-11-18 18:37:23,007 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:37:23,007 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1220 transitions. [2022-11-18 18:37:23,009 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 81.33333333333333) internal successors, (1220), 15 states have internal predecessors, (1220), 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) [2022-11-18 18:37:23,012 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 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) [2022-11-18 18:37:23,013 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 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) [2022-11-18 18:37:23,013 INFO L175 Difference]: Start difference. First operand has 261 places, 644 transitions, 11008 flow. Second operand 15 states and 1220 transitions. [2022-11-18 18:37:23,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 1174 transitions, 18850 flow [2022-11-18 18:37:23,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 1174 transitions, 18726 flow, removed 50 selfloop flow, removed 4 redundant places. [2022-11-18 18:37:23,725 INFO L231 Difference]: Finished difference. Result has 278 places, 691 transitions, 12582 flow [2022-11-18 18:37:23,726 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=10900, PETRI_DIFFERENCE_MINUEND_PLACES=257, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=644, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=150, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=457, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=12582, PETRI_PLACES=278, PETRI_TRANSITIONS=691} [2022-11-18 18:37:23,726 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 177 predicate places. [2022-11-18 18:37:23,727 INFO L495 AbstractCegarLoop]: Abstraction has has 278 places, 691 transitions, 12582 flow [2022-11-18 18:37:23,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 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) [2022-11-18 18:37:23,727 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:37:23,728 INFO L209 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] [2022-11-18 18:37:23,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 18:37:23,728 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-18 18:37:23,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:37:23,729 INFO L85 PathProgramCache]: Analyzing trace with hash -2147339439, now seen corresponding path program 6 times [2022-11-18 18:37:23,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:37:23,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114823496] [2022-11-18 18:37:23,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:37:23,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:37:23,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:24,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:37:24,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:37:24,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114823496] [2022-11-18 18:37:24,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114823496] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:37:24,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:37:24,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 18:37:24,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474058428] [2022-11-18 18:37:24,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:37:24,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 18:37:24,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:37:24,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 18:37:24,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-18 18:37:24,300 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-18 18:37:24,301 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 691 transitions, 12582 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 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) [2022-11-18 18:37:24,301 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:37:24,301 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-18 18:37:24,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:37:28,046 INFO L130 PetriNetUnfolder]: 3471/8836 cut-off events. [2022-11-18 18:37:28,046 INFO L131 PetriNetUnfolder]: For 103336/103357 co-relation queries the response was YES. [2022-11-18 18:37:28,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47148 conditions, 8836 events. 3471/8836 cut-off events. For 103336/103357 co-relation queries the response was YES. Maximal size of possible extension queue 379. Compared 79487 event pairs, 656 based on Foata normal form. 11/8669 useless extension candidates. Maximal degree in co-relation 47020. Up to 4267 conditions per place. [2022-11-18 18:37:28,150 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 796 selfloop transitions, 213 changer transitions 1/1064 dead transitions. [2022-11-18 18:37:28,150 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 1064 transitions, 19008 flow [2022-11-18 18:37:28,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 18:37:28,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-18 18:37:28,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1046 transitions. [2022-11-18 18:37:28,153 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7048517520215634 [2022-11-18 18:37:28,153 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1046 transitions. [2022-11-18 18:37:28,153 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1046 transitions. [2022-11-18 18:37:28,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:37:28,154 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1046 transitions. [2022-11-18 18:37:28,156 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 74.71428571428571) internal successors, (1046), 14 states have internal predecessors, (1046), 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) [2022-11-18 18:37:28,159 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 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) [2022-11-18 18:37:28,159 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 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) [2022-11-18 18:37:28,160 INFO L175 Difference]: Start difference. First operand has 278 places, 691 transitions, 12582 flow. Second operand 14 states and 1046 transitions. [2022-11-18 18:37:28,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 1064 transitions, 19008 flow [2022-11-18 18:37:28,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 284 places, 1064 transitions, 18757 flow, removed 20 selfloop flow, removed 7 redundant places. [2022-11-18 18:37:28,905 INFO L231 Difference]: Finished difference. Result has 293 places, 748 transitions, 14495 flow [2022-11-18 18:37:28,906 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=12410, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=691, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=158, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=492, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=14495, PETRI_PLACES=293, PETRI_TRANSITIONS=748} [2022-11-18 18:37:28,906 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 192 predicate places. [2022-11-18 18:37:28,907 INFO L495 AbstractCegarLoop]: Abstraction has has 293 places, 748 transitions, 14495 flow [2022-11-18 18:37:28,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 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) [2022-11-18 18:37:28,907 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:37:28,907 INFO L209 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] [2022-11-18 18:37:28,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 18:37:28,908 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-18 18:37:28,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:37:28,908 INFO L85 PathProgramCache]: Analyzing trace with hash -946221503, now seen corresponding path program 5 times [2022-11-18 18:37:28,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:37:28,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030873158] [2022-11-18 18:37:28,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:37:28,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:37:28,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:29,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:37:29,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:37:29,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030873158] [2022-11-18 18:37:29,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030873158] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:37:29,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:37:29,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 18:37:29,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526772198] [2022-11-18 18:37:29,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:37:29,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 18:37:29,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:37:29,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 18:37:29,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-18 18:37:29,333 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-18 18:37:29,335 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 748 transitions, 14495 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 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) [2022-11-18 18:37:29,335 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:37:29,336 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-18 18:37:29,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:37:34,088 INFO L130 PetriNetUnfolder]: 4007/10212 cut-off events. [2022-11-18 18:37:34,088 INFO L131 PetriNetUnfolder]: For 136274/136312 co-relation queries the response was YES. [2022-11-18 18:37:34,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56240 conditions, 10212 events. 4007/10212 cut-off events. For 136274/136312 co-relation queries the response was YES. Maximal size of possible extension queue 439. Compared 94811 event pairs, 729 based on Foata normal form. 31/10040 useless extension candidates. Maximal degree in co-relation 56103. Up to 3277 conditions per place. [2022-11-18 18:37:34,213 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 1155 selfloop transitions, 205 changer transitions 2/1416 dead transitions. [2022-11-18 18:37:34,213 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 1416 transitions, 25348 flow [2022-11-18 18:37:34,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 18:37:34,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-18 18:37:34,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1223 transitions. [2022-11-18 18:37:34,217 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.769182389937107 [2022-11-18 18:37:34,217 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1223 transitions. [2022-11-18 18:37:34,217 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1223 transitions. [2022-11-18 18:37:34,218 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:37:34,218 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1223 transitions. [2022-11-18 18:37:34,221 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 81.53333333333333) internal successors, (1223), 15 states have internal predecessors, (1223), 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) [2022-11-18 18:37:34,364 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 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) [2022-11-18 18:37:34,365 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 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) [2022-11-18 18:37:34,365 INFO L175 Difference]: Start difference. First operand has 293 places, 748 transitions, 14495 flow. Second operand 15 states and 1223 transitions. [2022-11-18 18:37:34,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 1416 transitions, 25348 flow [2022-11-18 18:37:35,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 1416 transitions, 25164 flow, removed 80 selfloop flow, removed 4 redundant places. [2022-11-18 18:37:35,285 INFO L231 Difference]: Finished difference. Result has 310 places, 799 transitions, 16172 flow [2022-11-18 18:37:35,286 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=14334, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=748, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=154, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=553, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=16172, PETRI_PLACES=310, PETRI_TRANSITIONS=799} [2022-11-18 18:37:35,287 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 209 predicate places. [2022-11-18 18:37:35,287 INFO L495 AbstractCegarLoop]: Abstraction has has 310 places, 799 transitions, 16172 flow [2022-11-18 18:37:35,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 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) [2022-11-18 18:37:35,288 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:37:35,288 INFO L209 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] [2022-11-18 18:37:35,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 18:37:35,288 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-18 18:37:35,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:37:35,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1785061653, now seen corresponding path program 7 times [2022-11-18 18:37:35,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:37:35,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277487061] [2022-11-18 18:37:35,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:37:35,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:37:35,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:35,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:37:35,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:37:35,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277487061] [2022-11-18 18:37:35,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277487061] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:37:35,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:37:35,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 18:37:35,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335100916] [2022-11-18 18:37:35,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:37:35,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 18:37:35,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:37:35,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 18:37:35,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-18 18:37:35,785 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-18 18:37:35,786 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 799 transitions, 16172 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 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) [2022-11-18 18:37:35,786 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:37:35,792 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-18 18:37:35,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:37:41,009 INFO L130 PetriNetUnfolder]: 4551/11563 cut-off events. [2022-11-18 18:37:41,009 INFO L131 PetriNetUnfolder]: For 163027/163048 co-relation queries the response was YES. [2022-11-18 18:37:41,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64816 conditions, 11563 events. 4551/11563 cut-off events. For 163027/163048 co-relation queries the response was YES. Maximal size of possible extension queue 492. Compared 109519 event pairs, 921 based on Foata normal form. 11/11327 useless extension candidates. Maximal degree in co-relation 64672. Up to 4251 conditions per place. [2022-11-18 18:37:41,152 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 1006 selfloop transitions, 252 changer transitions 1/1313 dead transitions. [2022-11-18 18:37:41,152 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 1313 transitions, 24969 flow [2022-11-18 18:37:41,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 18:37:41,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-18 18:37:41,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1139 transitions. [2022-11-18 18:37:41,155 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7163522012578616 [2022-11-18 18:37:41,155 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1139 transitions. [2022-11-18 18:37:41,155 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1139 transitions. [2022-11-18 18:37:41,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:37:41,156 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1139 transitions. [2022-11-18 18:37:41,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 75.93333333333334) internal successors, (1139), 15 states have internal predecessors, (1139), 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) [2022-11-18 18:37:41,160 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 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) [2022-11-18 18:37:41,161 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 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) [2022-11-18 18:37:41,161 INFO L175 Difference]: Start difference. First operand has 310 places, 799 transitions, 16172 flow. Second operand 15 states and 1139 transitions. [2022-11-18 18:37:41,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 1313 transitions, 24969 flow [2022-11-18 18:37:42,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 1313 transitions, 24689 flow, removed 41 selfloop flow, removed 7 redundant places. [2022-11-18 18:37:42,367 INFO L231 Difference]: Finished difference. Result has 326 places, 868 transitions, 18706 flow [2022-11-18 18:37:42,367 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=15958, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=799, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=191, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=573, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=18706, PETRI_PLACES=326, PETRI_TRANSITIONS=868} [2022-11-18 18:37:42,368 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 225 predicate places. [2022-11-18 18:37:42,368 INFO L495 AbstractCegarLoop]: Abstraction has has 326 places, 868 transitions, 18706 flow [2022-11-18 18:37:42,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 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) [2022-11-18 18:37:42,369 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:37:42,369 INFO L209 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] [2022-11-18 18:37:42,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 18:37:42,369 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-18 18:37:42,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:37:42,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1928416905, now seen corresponding path program 6 times [2022-11-18 18:37:42,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:37:42,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110478742] [2022-11-18 18:37:42,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:37:42,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:37:42,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:42,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:37:42,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:37:42,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110478742] [2022-11-18 18:37:42,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110478742] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:37:42,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:37:42,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 18:37:42,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451670527] [2022-11-18 18:37:42,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:37:42,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 18:37:42,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:37:42,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 18:37:42,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-18 18:37:42,833 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-18 18:37:42,834 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 868 transitions, 18706 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 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) [2022-11-18 18:37:42,834 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:37:42,834 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-18 18:37:42,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:37:48,724 INFO L130 PetriNetUnfolder]: 4534/11505 cut-off events. [2022-11-18 18:37:48,724 INFO L131 PetriNetUnfolder]: For 183420/183463 co-relation queries the response was YES. [2022-11-18 18:37:48,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66167 conditions, 11505 events. 4534/11505 cut-off events. For 183420/183463 co-relation queries the response was YES. Maximal size of possible extension queue 492. Compared 109277 event pairs, 904 based on Foata normal form. 31/11294 useless extension candidates. Maximal degree in co-relation 66014. Up to 4270 conditions per place. [2022-11-18 18:37:48,875 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 1111 selfloop transitions, 220 changer transitions 4/1389 dead transitions. [2022-11-18 18:37:48,875 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 1389 transitions, 27849 flow [2022-11-18 18:37:48,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 18:37:48,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-18 18:37:48,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1175 transitions. [2022-11-18 18:37:48,878 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7389937106918238 [2022-11-18 18:37:48,878 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1175 transitions. [2022-11-18 18:37:48,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1175 transitions. [2022-11-18 18:37:48,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:37:48,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1175 transitions. [2022-11-18 18:37:48,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 78.33333333333333) internal successors, (1175), 15 states have internal predecessors, (1175), 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) [2022-11-18 18:37:48,883 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 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) [2022-11-18 18:37:48,883 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 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) [2022-11-18 18:37:48,884 INFO L175 Difference]: Start difference. First operand has 326 places, 868 transitions, 18706 flow. Second operand 15 states and 1175 transitions. [2022-11-18 18:37:48,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 1389 transitions, 27849 flow [2022-11-18 18:37:50,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 1389 transitions, 27553 flow, removed 144 selfloop flow, removed 3 redundant places. [2022-11-18 18:37:50,214 INFO L231 Difference]: Finished difference. Result has 345 places, 902 transitions, 19910 flow [2022-11-18 18:37:50,215 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=18450, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=868, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=186, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=652, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=19910, PETRI_PLACES=345, PETRI_TRANSITIONS=902} [2022-11-18 18:37:50,216 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 244 predicate places. [2022-11-18 18:37:50,216 INFO L495 AbstractCegarLoop]: Abstraction has has 345 places, 902 transitions, 19910 flow [2022-11-18 18:37:50,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 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) [2022-11-18 18:37:50,216 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:37:50,217 INFO L209 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] [2022-11-18 18:37:50,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-18 18:37:50,217 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-18 18:37:50,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:37:50,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1819060442, now seen corresponding path program 1 times [2022-11-18 18:37:50,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:37:50,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500578064] [2022-11-18 18:37:50,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:37:50,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:37:50,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:50,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:37:50,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:37:50,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500578064] [2022-11-18 18:37:50,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500578064] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:37:50,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:37:50,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 18:37:50,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203826065] [2022-11-18 18:37:50,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:37:50,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 18:37:50,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:37:50,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 18:37:50,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-11-18 18:37:50,798 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 106 [2022-11-18 18:37:50,799 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 902 transitions, 19910 flow. Second operand has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 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) [2022-11-18 18:37:50,799 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:37:50,799 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 106 [2022-11-18 18:37:50,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:37:57,199 INFO L130 PetriNetUnfolder]: 5123/12486 cut-off events. [2022-11-18 18:37:57,200 INFO L131 PetriNetUnfolder]: For 203877/203892 co-relation queries the response was YES. [2022-11-18 18:37:57,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72586 conditions, 12486 events. 5123/12486 cut-off events. For 203877/203892 co-relation queries the response was YES. Maximal size of possible extension queue 504. Compared 116762 event pairs, 1521 based on Foata normal form. 13/12213 useless extension candidates. Maximal degree in co-relation 72425. Up to 4958 conditions per place. [2022-11-18 18:37:57,393 INFO L137 encePairwiseOnDemand]: 81/106 looper letters, 1016 selfloop transitions, 258 changer transitions 7/1332 dead transitions. [2022-11-18 18:37:57,393 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 1332 transitions, 27465 flow [2022-11-18 18:37:57,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 18:37:57,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-18 18:37:57,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1111 transitions. [2022-11-18 18:37:57,396 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7486522911051213 [2022-11-18 18:37:57,396 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1111 transitions. [2022-11-18 18:37:57,396 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1111 transitions. [2022-11-18 18:37:57,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:37:57,397 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1111 transitions. [2022-11-18 18:37:57,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 79.35714285714286) internal successors, (1111), 14 states have internal predecessors, (1111), 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) [2022-11-18 18:37:57,400 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 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) [2022-11-18 18:37:57,401 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 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) [2022-11-18 18:37:57,401 INFO L175 Difference]: Start difference. First operand has 345 places, 902 transitions, 19910 flow. Second operand 14 states and 1111 transitions. [2022-11-18 18:37:57,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 1332 transitions, 27465 flow [2022-11-18 18:37:58,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 352 places, 1332 transitions, 27147 flow, removed 95 selfloop flow, removed 6 redundant places. [2022-11-18 18:37:58,982 INFO L231 Difference]: Finished difference. Result has 361 places, 1044 transitions, 22610 flow [2022-11-18 18:37:58,982 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=19593, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=902, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=141, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=680, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=22610, PETRI_PLACES=361, PETRI_TRANSITIONS=1044} [2022-11-18 18:37:58,983 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 260 predicate places. [2022-11-18 18:37:58,983 INFO L495 AbstractCegarLoop]: Abstraction has has 361 places, 1044 transitions, 22610 flow [2022-11-18 18:37:58,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 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) [2022-11-18 18:37:58,983 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:37:58,984 INFO L209 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] [2022-11-18 18:37:58,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-18 18:37:58,984 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-18 18:37:58,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:37:58,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1048791595, now seen corresponding path program 8 times [2022-11-18 18:37:58,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:37:58,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932053660] [2022-11-18 18:37:58,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:37:58,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:37:59,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:59,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:37:59,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:37:59,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932053660] [2022-11-18 18:37:59,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932053660] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:37:59,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:37:59,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 18:37:59,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553253080] [2022-11-18 18:37:59,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:37:59,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 18:37:59,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:37:59,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 18:37:59,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-18 18:37:59,407 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-18 18:37:59,407 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 1044 transitions, 22610 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 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) [2022-11-18 18:37:59,407 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:37:59,408 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-18 18:37:59,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:38:05,885 INFO L130 PetriNetUnfolder]: 4562/11530 cut-off events. [2022-11-18 18:38:05,885 INFO L131 PetriNetUnfolder]: For 204405/204455 co-relation queries the response was YES. [2022-11-18 18:38:06,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70501 conditions, 11530 events. 4562/11530 cut-off events. For 204405/204455 co-relation queries the response was YES. Maximal size of possible extension queue 495. Compared 109107 event pairs, 972 based on Foata normal form. 22/11299 useless extension candidates. Maximal degree in co-relation 70332. Up to 4153 conditions per place. [2022-11-18 18:38:06,117 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 1189 selfloop transitions, 278 changer transitions 0/1525 dead transitions. [2022-11-18 18:38:06,117 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 376 places, 1525 transitions, 31733 flow [2022-11-18 18:38:06,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-18 18:38:06,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-18 18:38:06,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1233 transitions. [2022-11-18 18:38:06,120 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7270047169811321 [2022-11-18 18:38:06,120 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1233 transitions. [2022-11-18 18:38:06,120 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1233 transitions. [2022-11-18 18:38:06,121 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:38:06,121 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1233 transitions. [2022-11-18 18:38:06,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 77.0625) internal successors, (1233), 16 states have internal predecessors, (1233), 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) [2022-11-18 18:38:06,126 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 106.0) internal successors, (1802), 17 states have internal predecessors, (1802), 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) [2022-11-18 18:38:06,126 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 106.0) internal successors, (1802), 17 states have internal predecessors, (1802), 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) [2022-11-18 18:38:06,126 INFO L175 Difference]: Start difference. First operand has 361 places, 1044 transitions, 22610 flow. Second operand 16 states and 1233 transitions. [2022-11-18 18:38:06,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 376 places, 1525 transitions, 31733 flow [2022-11-18 18:38:08,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 373 places, 1525 transitions, 31375 flow, removed 173 selfloop flow, removed 3 redundant places. [2022-11-18 18:38:08,061 INFO L231 Difference]: Finished difference. Result has 380 places, 1093 transitions, 24455 flow [2022-11-18 18:38:08,062 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=22414, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1044, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=229, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=775, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=24455, PETRI_PLACES=380, PETRI_TRANSITIONS=1093} [2022-11-18 18:38:08,062 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 279 predicate places. [2022-11-18 18:38:08,063 INFO L495 AbstractCegarLoop]: Abstraction has has 380 places, 1093 transitions, 24455 flow [2022-11-18 18:38:08,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 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) [2022-11-18 18:38:08,063 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:38:08,063 INFO L209 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] [2022-11-18 18:38:08,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-18 18:38:08,064 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-18 18:38:08,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:38:08,064 INFO L85 PathProgramCache]: Analyzing trace with hash 67520552, now seen corresponding path program 2 times [2022-11-18 18:38:08,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:38:08,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419566512] [2022-11-18 18:38:08,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:38:08,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:38:08,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:08,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:38:08,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:38:08,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419566512] [2022-11-18 18:38:08,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419566512] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:38:08,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:38:08,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 18:38:08,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969878510] [2022-11-18 18:38:08,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:38:08,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 18:38:08,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:38:08,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 18:38:08,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-18 18:38:08,459 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 106 [2022-11-18 18:38:08,460 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 1093 transitions, 24455 flow. Second operand has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 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) [2022-11-18 18:38:08,460 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:38:08,460 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 106 [2022-11-18 18:38:08,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:38:16,196 INFO L130 PetriNetUnfolder]: 5193/12668 cut-off events. [2022-11-18 18:38:16,196 INFO L131 PetriNetUnfolder]: For 233856/233895 co-relation queries the response was YES. [2022-11-18 18:38:16,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77831 conditions, 12668 events. 5193/12668 cut-off events. For 233856/233895 co-relation queries the response was YES. Maximal size of possible extension queue 510. Compared 118872 event pairs, 1541 based on Foata normal form. 27/12409 useless extension candidates. Maximal degree in co-relation 77655. Up to 4958 conditions per place. [2022-11-18 18:38:16,452 INFO L137 encePairwiseOnDemand]: 81/106 looper letters, 1076 selfloop transitions, 305 changer transitions 7/1439 dead transitions. [2022-11-18 18:38:16,452 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 394 places, 1439 transitions, 31453 flow [2022-11-18 18:38:16,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 18:38:16,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-18 18:38:16,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1184 transitions. [2022-11-18 18:38:16,455 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7446540880503144 [2022-11-18 18:38:16,455 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1184 transitions. [2022-11-18 18:38:16,455 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1184 transitions. [2022-11-18 18:38:16,456 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:38:16,456 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1184 transitions. [2022-11-18 18:38:16,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 78.93333333333334) internal successors, (1184), 15 states have internal predecessors, (1184), 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) [2022-11-18 18:38:16,460 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 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) [2022-11-18 18:38:16,461 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 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) [2022-11-18 18:38:16,461 INFO L175 Difference]: Start difference. First operand has 380 places, 1093 transitions, 24455 flow. Second operand 15 states and 1184 transitions. [2022-11-18 18:38:16,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 394 places, 1439 transitions, 31453 flow [2022-11-18 18:38:18,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 391 places, 1439 transitions, 31171 flow, removed 138 selfloop flow, removed 3 redundant places. [2022-11-18 18:38:18,504 INFO L231 Difference]: Finished difference. Result has 396 places, 1127 transitions, 25766 flow [2022-11-18 18:38:18,505 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=24285, PETRI_DIFFERENCE_MINUEND_PLACES=377, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1093, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=271, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=792, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=25766, PETRI_PLACES=396, PETRI_TRANSITIONS=1127} [2022-11-18 18:38:18,506 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 295 predicate places. [2022-11-18 18:38:18,506 INFO L495 AbstractCegarLoop]: Abstraction has has 396 places, 1127 transitions, 25766 flow [2022-11-18 18:38:18,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 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) [2022-11-18 18:38:18,507 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:38:18,507 INFO L209 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] [2022-11-18 18:38:18,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-18 18:38:18,507 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-18 18:38:18,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:38:18,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1282196086, now seen corresponding path program 3 times [2022-11-18 18:38:18,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:38:18,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132966242] [2022-11-18 18:38:18,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:38:18,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:38:18,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:19,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:38:19,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:38:19,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132966242] [2022-11-18 18:38:19,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132966242] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:38:19,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:38:19,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 18:38:19,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132291736] [2022-11-18 18:38:19,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:38:19,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 18:38:19,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:38:19,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 18:38:19,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-18 18:38:19,050 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 106 [2022-11-18 18:38:19,050 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 1127 transitions, 25766 flow. Second operand has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 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) [2022-11-18 18:38:19,051 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:38:19,051 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 106 [2022-11-18 18:38:19,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:38:26,779 INFO L130 PetriNetUnfolder]: 5283/12830 cut-off events. [2022-11-18 18:38:26,779 INFO L131 PetriNetUnfolder]: For 243598/243663 co-relation queries the response was YES. [2022-11-18 18:38:27,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81209 conditions, 12830 events. 5283/12830 cut-off events. For 243598/243663 co-relation queries the response was YES. Maximal size of possible extension queue 517. Compared 120522 event pairs, 1568 based on Foata normal form. 33/12576 useless extension candidates. Maximal degree in co-relation 81027. Up to 4958 conditions per place. [2022-11-18 18:38:27,050 INFO L137 encePairwiseOnDemand]: 81/106 looper letters, 1293 selfloop transitions, 272 changer transitions 8/1624 dead transitions. [2022-11-18 18:38:27,051 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 410 places, 1624 transitions, 34990 flow [2022-11-18 18:38:27,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 18:38:27,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-18 18:38:27,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1199 transitions. [2022-11-18 18:38:27,053 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7540880503144655 [2022-11-18 18:38:27,053 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1199 transitions. [2022-11-18 18:38:27,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1199 transitions. [2022-11-18 18:38:27,054 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:38:27,054 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1199 transitions. [2022-11-18 18:38:27,057 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 79.93333333333334) internal successors, (1199), 15 states have internal predecessors, (1199), 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) [2022-11-18 18:38:27,059 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 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) [2022-11-18 18:38:27,060 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 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) [2022-11-18 18:38:27,060 INFO L175 Difference]: Start difference. First operand has 396 places, 1127 transitions, 25766 flow. Second operand 15 states and 1199 transitions. [2022-11-18 18:38:27,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 410 places, 1624 transitions, 34990 flow [2022-11-18 18:38:29,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 1624 transitions, 34848 flow, removed 7 selfloop flow, removed 6 redundant places. [2022-11-18 18:38:29,487 INFO L231 Difference]: Finished difference. Result has 409 places, 1208 transitions, 27723 flow [2022-11-18 18:38:29,488 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=25624, PETRI_DIFFERENCE_MINUEND_PLACES=390, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=197, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=866, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=27723, PETRI_PLACES=409, PETRI_TRANSITIONS=1208} [2022-11-18 18:38:29,488 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 308 predicate places. [2022-11-18 18:38:29,488 INFO L495 AbstractCegarLoop]: Abstraction has has 409 places, 1208 transitions, 27723 flow [2022-11-18 18:38:29,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 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) [2022-11-18 18:38:29,489 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:38:29,489 INFO L209 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] [2022-11-18 18:38:29,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-18 18:38:29,489 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-18 18:38:29,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:38:29,490 INFO L85 PathProgramCache]: Analyzing trace with hash 909472264, now seen corresponding path program 4 times [2022-11-18 18:38:29,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:38:29,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347601188] [2022-11-18 18:38:29,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:38:29,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:38:29,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:29,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:38:29,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:38:29,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347601188] [2022-11-18 18:38:29,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347601188] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:38:29,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:38:29,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 18:38:29,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215373798] [2022-11-18 18:38:29,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:38:29,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 18:38:29,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:38:29,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 18:38:29,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-11-18 18:38:29,876 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 106 [2022-11-18 18:38:29,877 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 1208 transitions, 27723 flow. Second operand has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 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) [2022-11-18 18:38:29,877 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:38:29,877 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 106 [2022-11-18 18:38:29,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:38:38,386 INFO L130 PetriNetUnfolder]: 5389/13099 cut-off events. [2022-11-18 18:38:38,386 INFO L131 PetriNetUnfolder]: For 268573/268653 co-relation queries the response was YES. [2022-11-18 18:38:38,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86198 conditions, 13099 events. 5389/13099 cut-off events. For 268573/268653 co-relation queries the response was YES. Maximal size of possible extension queue 528. Compared 123671 event pairs, 1611 based on Foata normal form. 35/12846 useless extension candidates. Maximal degree in co-relation 86011. Up to 4958 conditions per place. [2022-11-18 18:38:38,651 INFO L137 encePairwiseOnDemand]: 81/106 looper letters, 1172 selfloop transitions, 375 changer transitions 6/1604 dead transitions. [2022-11-18 18:38:38,651 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 1604 transitions, 36127 flow [2022-11-18 18:38:38,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 18:38:38,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-18 18:38:38,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1180 transitions. [2022-11-18 18:38:38,653 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7421383647798742 [2022-11-18 18:38:38,653 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1180 transitions. [2022-11-18 18:38:38,653 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1180 transitions. [2022-11-18 18:38:38,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:38:38,654 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1180 transitions. [2022-11-18 18:38:38,655 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 78.66666666666667) internal successors, (1180), 15 states have internal predecessors, (1180), 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) [2022-11-18 18:38:38,657 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 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) [2022-11-18 18:38:38,658 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 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) [2022-11-18 18:38:38,658 INFO L175 Difference]: Start difference. First operand has 409 places, 1208 transitions, 27723 flow. Second operand 15 states and 1180 transitions. [2022-11-18 18:38:38,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 1604 transitions, 36127 flow [2022-11-18 18:38:41,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 413 places, 1604 transitions, 35674 flow, removed 61 selfloop flow, removed 10 redundant places. [2022-11-18 18:38:41,471 INFO L231 Difference]: Finished difference. Result has 419 places, 1271 transitions, 29805 flow [2022-11-18 18:38:41,472 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=27304, PETRI_DIFFERENCE_MINUEND_PLACES=399, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=322, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=851, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=29805, PETRI_PLACES=419, PETRI_TRANSITIONS=1271} [2022-11-18 18:38:41,472 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 318 predicate places. [2022-11-18 18:38:41,472 INFO L495 AbstractCegarLoop]: Abstraction has has 419 places, 1271 transitions, 29805 flow [2022-11-18 18:38:41,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 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) [2022-11-18 18:38:41,473 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:38:41,473 INFO L209 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] [2022-11-18 18:38:41,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-18 18:38:41,473 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-18 18:38:41,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:38:41,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1828708101, now seen corresponding path program 1 times [2022-11-18 18:38:41,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:38:41,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133375805] [2022-11-18 18:38:41,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:38:41,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:38:41,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:41,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:38:41,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:38:41,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133375805] [2022-11-18 18:38:41,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133375805] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:38:41,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:38:41,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 18:38:41,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103016347] [2022-11-18 18:38:41,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:38:41,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 18:38:41,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:38:41,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 18:38:41,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-18 18:38:41,846 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 106 [2022-11-18 18:38:41,847 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 1271 transitions, 29805 flow. Second operand has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 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) [2022-11-18 18:38:41,847 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:38:41,847 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 106 [2022-11-18 18:38:41,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand