./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ba4182-da15-465f-ab22-d9304c290267/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ba4182-da15-465f-ab22-d9304c290267/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ba4182-da15-465f-ab22-d9304c290267/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ba4182-da15-465f-ab22-d9304c290267/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ba4182-da15-465f-ab22-d9304c290267/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ba4182-da15-465f-ab22-d9304c290267/bin/uautomizer-vX5HgA9Q3a --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 b018c23c1a90f89310fc4f08bf16b02660af5a398ccd47f63d319e7a234c112b --- 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-b5237d8 [2022-11-21 13:42:19,539 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 13:42:19,541 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 13:42:19,582 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 13:42:19,582 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 13:42:19,586 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 13:42:19,589 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 13:42:19,591 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 13:42:19,593 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 13:42:19,598 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 13:42:19,599 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 13:42:19,600 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 13:42:19,601 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 13:42:19,601 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 13:42:19,602 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 13:42:19,603 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 13:42:19,604 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 13:42:19,605 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 13:42:19,606 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 13:42:19,608 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 13:42:19,609 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 13:42:19,614 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 13:42:19,616 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 13:42:19,616 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 13:42:19,635 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 13:42:19,636 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 13:42:19,636 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 13:42:19,637 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 13:42:19,637 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 13:42:19,638 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 13:42:19,638 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 13:42:19,639 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 13:42:19,640 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 13:42:19,640 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 13:42:19,641 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 13:42:19,641 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 13:42:19,642 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 13:42:19,642 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 13:42:19,642 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 13:42:19,643 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 13:42:19,644 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 13:42:19,645 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ba4182-da15-465f-ab22-d9304c290267/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-21 13:42:19,676 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 13:42:19,677 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 13:42:19,678 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 13:42:19,678 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 13:42:19,679 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 13:42:19,679 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 13:42:19,679 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 13:42:19,679 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 13:42:19,680 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 13:42:19,680 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 13:42:19,681 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 13:42:19,681 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 13:42:19,681 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 13:42:19,681 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 13:42:19,682 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 13:42:19,682 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 13:42:19,682 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 13:42:19,682 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 13:42:19,682 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-21 13:42:19,682 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 13:42:19,683 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 13:42:19,683 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 13:42:19,683 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 13:42:19,683 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 13:42:19,683 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 13:42:19,683 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 13:42:19,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:42:19,684 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 13:42:19,684 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 13:42:19,685 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 13:42:19,685 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 13:42:19,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 13:42:19,685 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 13:42:19,686 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 13:42:19,686 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 13:42:19,686 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_c3ba4182-da15-465f-ab22-d9304c290267/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ba4182-da15-465f-ab22-d9304c290267/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b018c23c1a90f89310fc4f08bf16b02660af5a398ccd47f63d319e7a234c112b [2022-11-21 13:42:19,990 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 13:42:20,019 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 13:42:20,021 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 13:42:20,022 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 13:42:20,023 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 13:42:20,024 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ba4182-da15-465f-ab22-d9304c290267/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr.i [2022-11-21 13:42:22,955 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 13:42:23,290 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 13:42:23,291 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ba4182-da15-465f-ab22-d9304c290267/sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr.i [2022-11-21 13:42:23,312 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ba4182-da15-465f-ab22-d9304c290267/bin/uautomizer-vX5HgA9Q3a/data/a1f82c84a/16d5869769614ac1aef0814097cea4e1/FLAG37f23cf9c [2022-11-21 13:42:23,331 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ba4182-da15-465f-ab22-d9304c290267/bin/uautomizer-vX5HgA9Q3a/data/a1f82c84a/16d5869769614ac1aef0814097cea4e1 [2022-11-21 13:42:23,335 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 13:42:23,336 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 13:42:23,338 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 13:42:23,338 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 13:42:23,341 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 13:42:23,342 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:42:23" (1/1) ... [2022-11-21 13:42:23,343 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@98c91df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:23, skipping insertion in model container [2022-11-21 13:42:23,343 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:42:23" (1/1) ... [2022-11-21 13:42:23,351 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 13:42:23,424 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 13:42:24,085 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:42:24,104 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 13:42:24,175 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:42:24,296 INFO L208 MainTranslator]: Completed translation [2022-11-21 13:42:24,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:24 WrapperNode [2022-11-21 13:42:24,298 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 13:42:24,299 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 13:42:24,300 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 13:42:24,300 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 13:42:24,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:24" (1/1) ... [2022-11-21 13:42:24,350 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:24" (1/1) ... [2022-11-21 13:42:24,417 INFO L138 Inliner]: procedures = 370, calls = 37, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 353 [2022-11-21 13:42:24,417 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 13:42:24,418 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 13:42:24,418 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 13:42:24,418 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 13:42:24,436 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:24" (1/1) ... [2022-11-21 13:42:24,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:24" (1/1) ... [2022-11-21 13:42:24,446 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:24" (1/1) ... [2022-11-21 13:42:24,446 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:24" (1/1) ... [2022-11-21 13:42:24,478 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:24" (1/1) ... [2022-11-21 13:42:24,484 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:24" (1/1) ... [2022-11-21 13:42:24,487 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:24" (1/1) ... [2022-11-21 13:42:24,490 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:24" (1/1) ... [2022-11-21 13:42:24,495 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 13:42:24,520 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 13:42:24,520 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 13:42:24,520 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 13:42:24,521 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:24" (1/1) ... [2022-11-21 13:42:24,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:42:24,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ba4182-da15-465f-ab22-d9304c290267/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:42:24,581 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ba4182-da15-465f-ab22-d9304c290267/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 13:42:24,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ba4182-da15-465f-ab22-d9304c290267/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 13:42:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 13:42:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-21 13:42:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 13:42:24,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 13:42:24,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 13:42:24,708 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-21 13:42:24,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 13:42:24,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 13:42:24,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-21 13:42:24,710 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-21 13:42:24,710 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-21 13:42:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 13:42:24,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 13:42:24,713 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 13:42:25,016 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 13:42:25,019 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 13:42:26,055 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 13:42:26,078 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 13:42:26,078 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 13:42:26,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:42:26 BoogieIcfgContainer [2022-11-21 13:42:26,082 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 13:42:26,087 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 13:42:26,088 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 13:42:26,091 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 13:42:26,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:42:23" (1/3) ... [2022-11-21 13:42:26,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a1ac52c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:42:26, skipping insertion in model container [2022-11-21 13:42:26,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:24" (2/3) ... [2022-11-21 13:42:26,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a1ac52c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:42:26, skipping insertion in model container [2022-11-21 13:42:26,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:42:26" (3/3) ... [2022-11-21 13:42:26,097 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_13-arraycollapse_nr.i [2022-11-21 13:42:26,107 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 13:42:26,120 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 13:42:26,121 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2022-11-21 13:42:26,122 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 13:42:26,270 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-21 13:42:26,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 429 places, 430 transitions, 865 flow [2022-11-21 13:42:26,661 INFO L130 PetriNetUnfolder]: 5/429 cut-off events. [2022-11-21 13:42:26,662 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 13:42:26,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 433 conditions, 429 events. 5/429 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 363 event pairs, 0 based on Foata normal form. 0/394 useless extension candidates. Maximal degree in co-relation 303. Up to 2 conditions per place. [2022-11-21 13:42:26,671 INFO L82 GeneralOperation]: Start removeDead. Operand has 429 places, 430 transitions, 865 flow [2022-11-21 13:42:26,685 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 428 places, 429 transitions, 861 flow [2022-11-21 13:42:26,710 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 13:42:26,719 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;@18d30c5a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 13:42:26,719 INFO L358 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2022-11-21 13:42:26,730 INFO L130 PetriNetUnfolder]: 2/51 cut-off events. [2022-11-21 13:42:26,730 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 13:42:26,730 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:42:26,731 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] [2022-11-21 13:42:26,732 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 13:42:26,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:42:26,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1281122193, now seen corresponding path program 1 times [2022-11-21 13:42:26,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:42:26,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913789266] [2022-11-21 13:42:26,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:42:26,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:42:26,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:42:27,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:42:27,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:42:27,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913789266] [2022-11-21 13:42:27,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913789266] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:42:27,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:42:27,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 13:42:27,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854377676] [2022-11-21 13:42:27,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:42:27,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 13:42:27,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:42:27,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 13:42:27,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 13:42:27,844 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 430 [2022-11-21 13:42:27,853 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 428 places, 429 transitions, 861 flow. Second operand has 6 states, 6 states have (on average 218.5) internal successors, (1311), 6 states have internal predecessors, (1311), 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) [2022-11-21 13:42:27,853 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:42:27,854 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 430 [2022-11-21 13:42:27,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:42:29,420 INFO L130 PetriNetUnfolder]: 649/2251 cut-off events. [2022-11-21 13:42:29,421 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-21 13:42:29,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3757 conditions, 2251 events. 649/2251 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 11666 event pairs, 648 based on Foata normal form. 18/2005 useless extension candidates. Maximal degree in co-relation 3304. Up to 1482 conditions per place. [2022-11-21 13:42:29,443 INFO L137 encePairwiseOnDemand]: 402/430 looper letters, 185 selfloop transitions, 20 changer transitions 2/421 dead transitions. [2022-11-21 13:42:29,443 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 429 places, 421 transitions, 1255 flow [2022-11-21 13:42:29,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 13:42:29,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 13:42:29,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1515 transitions. [2022-11-21 13:42:29,467 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5872093023255814 [2022-11-21 13:42:29,468 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1515 transitions. [2022-11-21 13:42:29,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1515 transitions. [2022-11-21 13:42:29,473 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:42:29,476 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1515 transitions. [2022-11-21 13:42:29,484 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 252.5) internal successors, (1515), 6 states have internal predecessors, (1515), 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) [2022-11-21 13:42:29,496 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 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) [2022-11-21 13:42:29,499 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 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) [2022-11-21 13:42:29,501 INFO L175 Difference]: Start difference. First operand has 428 places, 429 transitions, 861 flow. Second operand 6 states and 1515 transitions. [2022-11-21 13:42:29,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 429 places, 421 transitions, 1255 flow [2022-11-21 13:42:29,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 428 places, 421 transitions, 1254 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 13:42:29,520 INFO L231 Difference]: Finished difference. Result has 428 places, 419 transitions, 880 flow [2022-11-21 13:42:29,523 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=844, PETRI_DIFFERENCE_MINUEND_PLACES=423, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=401, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=880, PETRI_PLACES=428, PETRI_TRANSITIONS=419} [2022-11-21 13:42:29,527 INFO L288 CegarLoopForPetriNet]: 428 programPoint places, 0 predicate places. [2022-11-21 13:42:29,528 INFO L495 AbstractCegarLoop]: Abstraction has has 428 places, 419 transitions, 880 flow [2022-11-21 13:42:29,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 218.5) internal successors, (1311), 6 states have internal predecessors, (1311), 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) [2022-11-21 13:42:29,529 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:42:29,530 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] [2022-11-21 13:42:29,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 13:42:29,530 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 13:42:29,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:42:29,531 INFO L85 PathProgramCache]: Analyzing trace with hash 6380780, now seen corresponding path program 1 times [2022-11-21 13:42:29,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:42:29,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39446071] [2022-11-21 13:42:29,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:42:29,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:42:29,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:42:30,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:42:30,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:42:30,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39446071] [2022-11-21 13:42:30,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39446071] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:42:30,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:42:30,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 13:42:30,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555286757] [2022-11-21 13:42:30,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:42:30,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 13:42:30,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:42:30,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 13:42:30,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 13:42:30,137 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 430 [2022-11-21 13:42:30,140 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 428 places, 419 transitions, 880 flow. Second operand has 6 states, 6 states have (on average 219.5) internal successors, (1317), 6 states have internal predecessors, (1317), 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) [2022-11-21 13:42:30,141 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:42:30,141 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 430 [2022-11-21 13:42:30,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:42:31,428 INFO L130 PetriNetUnfolder]: 649/2245 cut-off events. [2022-11-21 13:42:31,429 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-21 13:42:31,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3767 conditions, 2245 events. 649/2245 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 11643 event pairs, 648 based on Foata normal form. 0/1987 useless extension candidates. Maximal degree in co-relation 3398. Up to 1478 conditions per place. [2022-11-21 13:42:31,453 INFO L137 encePairwiseOnDemand]: 406/430 looper letters, 181 selfloop transitions, 20 changer transitions 0/415 dead transitions. [2022-11-21 13:42:31,453 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 427 places, 415 transitions, 1274 flow [2022-11-21 13:42:31,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 13:42:31,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 13:42:31,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1507 transitions. [2022-11-21 13:42:31,461 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.584108527131783 [2022-11-21 13:42:31,461 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1507 transitions. [2022-11-21 13:42:31,462 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1507 transitions. [2022-11-21 13:42:31,464 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:42:31,464 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1507 transitions. [2022-11-21 13:42:31,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 251.16666666666666) internal successors, (1507), 6 states have internal predecessors, (1507), 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) [2022-11-21 13:42:31,475 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 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) [2022-11-21 13:42:31,477 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 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) [2022-11-21 13:42:31,478 INFO L175 Difference]: Start difference. First operand has 428 places, 419 transitions, 880 flow. Second operand 6 states and 1507 transitions. [2022-11-21 13:42:31,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 427 places, 415 transitions, 1274 flow [2022-11-21 13:42:31,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 422 places, 415 transitions, 1234 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 13:42:31,546 INFO L231 Difference]: Finished difference. Result has 422 places, 415 transitions, 872 flow [2022-11-21 13:42:31,548 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=832, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=415, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=872, PETRI_PLACES=422, PETRI_TRANSITIONS=415} [2022-11-21 13:42:31,549 INFO L288 CegarLoopForPetriNet]: 428 programPoint places, -6 predicate places. [2022-11-21 13:42:31,549 INFO L495 AbstractCegarLoop]: Abstraction has has 422 places, 415 transitions, 872 flow [2022-11-21 13:42:31,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 219.5) internal successors, (1317), 6 states have internal predecessors, (1317), 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) [2022-11-21 13:42:31,551 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:42:31,551 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] [2022-11-21 13:42:31,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 13:42:31,552 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 13:42:31,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:42:31,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1065517115, now seen corresponding path program 1 times [2022-11-21 13:42:31,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:42:31,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342308290] [2022-11-21 13:42:31,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:42:31,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:42:31,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:42:31,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:42:31,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:42:31,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342308290] [2022-11-21 13:42:31,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342308290] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:42:31,980 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:42:31,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 13:42:31,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909974422] [2022-11-21 13:42:31,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:42:31,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 13:42:31,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:42:31,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 13:42:31,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 13:42:31,985 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 430 [2022-11-21 13:42:31,988 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 415 transitions, 872 flow. Second operand has 6 states, 6 states have (on average 231.83333333333334) internal successors, (1391), 6 states have internal predecessors, (1391), 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) [2022-11-21 13:42:31,988 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:42:31,988 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 430 [2022-11-21 13:42:31,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:42:33,257 INFO L130 PetriNetUnfolder]: 704/2363 cut-off events. [2022-11-21 13:42:33,257 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-21 13:42:33,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3983 conditions, 2363 events. 704/2363 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 12348 event pairs, 703 based on Foata normal form. 0/2096 useless extension candidates. Maximal degree in co-relation 3613. Up to 1591 conditions per place. [2022-11-21 13:42:33,271 INFO L137 encePairwiseOnDemand]: 424/430 looper letters, 184 selfloop transitions, 5 changer transitions 0/414 dead transitions. [2022-11-21 13:42:33,271 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 414 transitions, 1248 flow [2022-11-21 13:42:33,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 13:42:33,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 13:42:33,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1558 transitions. [2022-11-21 13:42:33,276 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.603875968992248 [2022-11-21 13:42:33,277 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1558 transitions. [2022-11-21 13:42:33,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1558 transitions. [2022-11-21 13:42:33,278 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:42:33,280 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1558 transitions. [2022-11-21 13:42:33,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 259.6666666666667) internal successors, (1558), 6 states have internal predecessors, (1558), 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) [2022-11-21 13:42:33,291 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 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) [2022-11-21 13:42:33,293 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 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) [2022-11-21 13:42:33,293 INFO L175 Difference]: Start difference. First operand has 422 places, 415 transitions, 872 flow. Second operand 6 states and 1558 transitions. [2022-11-21 13:42:33,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 414 transitions, 1248 flow [2022-11-21 13:42:33,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 414 transitions, 1208 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 13:42:33,304 INFO L231 Difference]: Finished difference. Result has 421 places, 414 transitions, 840 flow [2022-11-21 13:42:33,305 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=830, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=840, PETRI_PLACES=421, PETRI_TRANSITIONS=414} [2022-11-21 13:42:33,307 INFO L288 CegarLoopForPetriNet]: 428 programPoint places, -7 predicate places. [2022-11-21 13:42:33,307 INFO L495 AbstractCegarLoop]: Abstraction has has 421 places, 414 transitions, 840 flow [2022-11-21 13:42:33,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 231.83333333333334) internal successors, (1391), 6 states have internal predecessors, (1391), 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) [2022-11-21 13:42:33,309 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:42:33,309 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, 1, 1, 1, 1, 1, 1] [2022-11-21 13:42:33,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 13:42:33,310 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 13:42:33,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:42:33,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1388663336, now seen corresponding path program 1 times [2022-11-21 13:42:33,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:42:33,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238427076] [2022-11-21 13:42:33,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:42:33,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:42:33,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:42:33,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:42:33,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:42:33,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238427076] [2022-11-21 13:42:33,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238427076] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:42:33,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:42:33,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 13:42:33,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438587498] [2022-11-21 13:42:33,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:42:33,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:42:33,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:42:33,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:42:33,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:42:33,444 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 404 out of 430 [2022-11-21 13:42:33,446 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 414 transitions, 840 flow. Second operand has 3 states, 3 states have (on average 405.0) internal successors, (1215), 3 states have internal predecessors, (1215), 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) [2022-11-21 13:42:33,447 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:42:33,447 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 404 of 430 [2022-11-21 13:42:33,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:42:33,713 INFO L130 PetriNetUnfolder]: 1/523 cut-off events. [2022-11-21 13:42:33,713 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-21 13:42:33,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 576 conditions, 523 events. 1/523 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 333 event pairs, 0 based on Foata normal form. 0/496 useless extension candidates. Maximal degree in co-relation 80. Up to 22 conditions per place. [2022-11-21 13:42:33,715 INFO L137 encePairwiseOnDemand]: 427/430 looper letters, 36 selfloop transitions, 2 changer transitions 0/431 dead transitions. [2022-11-21 13:42:33,716 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 431 transitions, 958 flow [2022-11-21 13:42:33,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:42:33,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 13:42:33,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1251 transitions. [2022-11-21 13:42:33,720 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9697674418604652 [2022-11-21 13:42:33,720 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1251 transitions. [2022-11-21 13:42:33,721 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1251 transitions. [2022-11-21 13:42:33,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:42:33,722 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1251 transitions. [2022-11-21 13:42:33,728 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 417.0) internal successors, (1251), 3 states have internal predecessors, (1251), 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) [2022-11-21 13:42:33,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 430.0) internal successors, (1720), 4 states have internal predecessors, (1720), 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) [2022-11-21 13:42:33,737 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 430.0) internal successors, (1720), 4 states have internal predecessors, (1720), 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) [2022-11-21 13:42:33,737 INFO L175 Difference]: Start difference. First operand has 421 places, 414 transitions, 840 flow. Second operand 3 states and 1251 transitions. [2022-11-21 13:42:33,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 431 transitions, 958 flow [2022-11-21 13:42:33,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 431 transitions, 940 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 13:42:33,755 INFO L231 Difference]: Finished difference. Result has 419 places, 415 transitions, 842 flow [2022-11-21 13:42:33,756 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=830, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=412, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=842, PETRI_PLACES=419, PETRI_TRANSITIONS=415} [2022-11-21 13:42:33,759 INFO L288 CegarLoopForPetriNet]: 428 programPoint places, -9 predicate places. [2022-11-21 13:42:33,759 INFO L495 AbstractCegarLoop]: Abstraction has has 419 places, 415 transitions, 842 flow [2022-11-21 13:42:33,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 405.0) internal successors, (1215), 3 states have internal predecessors, (1215), 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) [2022-11-21 13:42:33,762 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:42:33,763 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:42:33,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 13:42:33,763 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 13:42:33,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:42:33,765 INFO L85 PathProgramCache]: Analyzing trace with hash -514088664, now seen corresponding path program 1 times [2022-11-21 13:42:33,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:42:33,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883767063] [2022-11-21 13:42:33,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:42:33,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:42:33,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:42:34,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:42:34,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:42:34,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883767063] [2022-11-21 13:42:34,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883767063] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:42:34,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:42:34,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 13:42:34,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996934418] [2022-11-21 13:42:34,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:42:34,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 13:42:34,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:42:34,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 13:42:34,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 13:42:34,534 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 430 [2022-11-21 13:42:34,536 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 415 transitions, 842 flow. Second operand has 6 states, 6 states have (on average 236.33333333333334) internal successors, (1418), 6 states have internal predecessors, (1418), 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) [2022-11-21 13:42:34,536 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:42:34,537 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 430 [2022-11-21 13:42:34,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:42:35,530 INFO L130 PetriNetUnfolder]: 704/2470 cut-off events. [2022-11-21 13:42:35,530 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-21 13:42:35,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4127 conditions, 2470 events. 704/2470 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 12373 event pairs, 703 based on Foata normal form. 0/2202 useless extension candidates. Maximal degree in co-relation 3939. Up to 1625 conditions per place. [2022-11-21 13:42:35,543 INFO L137 encePairwiseOnDemand]: 424/430 looper letters, 182 selfloop transitions, 5 changer transitions 0/414 dead transitions. [2022-11-21 13:42:35,543 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 414 transitions, 1214 flow [2022-11-21 13:42:35,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 13:42:35,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 13:42:35,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1567 transitions. [2022-11-21 13:42:35,548 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6073643410852713 [2022-11-21 13:42:35,548 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1567 transitions. [2022-11-21 13:42:35,549 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1567 transitions. [2022-11-21 13:42:35,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:42:35,550 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1567 transitions. [2022-11-21 13:42:35,553 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 261.1666666666667) internal successors, (1567), 6 states have internal predecessors, (1567), 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) [2022-11-21 13:42:35,558 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 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) [2022-11-21 13:42:35,559 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 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) [2022-11-21 13:42:35,560 INFO L175 Difference]: Start difference. First operand has 419 places, 415 transitions, 842 flow. Second operand 6 states and 1567 transitions. [2022-11-21 13:42:35,560 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 414 transitions, 1214 flow [2022-11-21 13:42:35,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 422 places, 414 transitions, 1212 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 13:42:35,569 INFO L231 Difference]: Finished difference. Result has 422 places, 414 transitions, 848 flow [2022-11-21 13:42:35,570 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=838, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=848, PETRI_PLACES=422, PETRI_TRANSITIONS=414} [2022-11-21 13:42:35,571 INFO L288 CegarLoopForPetriNet]: 428 programPoint places, -6 predicate places. [2022-11-21 13:42:35,571 INFO L495 AbstractCegarLoop]: Abstraction has has 422 places, 414 transitions, 848 flow [2022-11-21 13:42:35,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 236.33333333333334) internal successors, (1418), 6 states have internal predecessors, (1418), 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) [2022-11-21 13:42:35,572 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:42:35,572 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:42:35,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 13:42:35,573 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 13:42:35,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:42:35,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1322795057, now seen corresponding path program 1 times [2022-11-21 13:42:35,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:42:35,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840545960] [2022-11-21 13:42:35,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:42:35,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:42:35,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:42:36,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:42:36,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:42:36,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840545960] [2022-11-21 13:42:36,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840545960] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:42:36,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:42:36,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 13:42:36,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046074299] [2022-11-21 13:42:36,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:42:36,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 13:42:36,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:42:36,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 13:42:36,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 13:42:36,244 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 430 [2022-11-21 13:42:36,248 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 414 transitions, 848 flow. Second operand has 6 states, 6 states have (on average 239.33333333333334) internal successors, (1436), 6 states have internal predecessors, (1436), 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) [2022-11-21 13:42:36,248 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:42:36,248 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 430 [2022-11-21 13:42:36,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:42:37,551 INFO L130 PetriNetUnfolder]: 649/2347 cut-off events. [2022-11-21 13:42:37,552 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-21 13:42:37,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3894 conditions, 2347 events. 649/2347 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 11646 event pairs, 648 based on Foata normal form. 0/2093 useless extension candidates. Maximal degree in co-relation 3669. Up to 1504 conditions per place. [2022-11-21 13:42:37,568 INFO L137 encePairwiseOnDemand]: 412/430 looper letters, 165 selfloop transitions, 15 changer transitions 0/411 dead transitions. [2022-11-21 13:42:37,568 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 424 places, 411 transitions, 1202 flow [2022-11-21 13:42:37,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 13:42:37,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 13:42:37,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1581 transitions. [2022-11-21 13:42:37,575 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6127906976744186 [2022-11-21 13:42:37,575 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1581 transitions. [2022-11-21 13:42:37,575 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1581 transitions. [2022-11-21 13:42:37,577 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:42:37,577 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1581 transitions. [2022-11-21 13:42:37,582 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 263.5) internal successors, (1581), 6 states have internal predecessors, (1581), 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) [2022-11-21 13:42:37,589 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 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) [2022-11-21 13:42:37,590 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 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) [2022-11-21 13:42:37,590 INFO L175 Difference]: Start difference. First operand has 422 places, 414 transitions, 848 flow. Second operand 6 states and 1581 transitions. [2022-11-21 13:42:37,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 424 places, 411 transitions, 1202 flow [2022-11-21 13:42:37,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 411 transitions, 1192 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 13:42:37,603 INFO L231 Difference]: Finished difference. Result has 419 places, 411 transitions, 862 flow [2022-11-21 13:42:37,604 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=832, PETRI_DIFFERENCE_MINUEND_PLACES=414, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=396, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=862, PETRI_PLACES=419, PETRI_TRANSITIONS=411} [2022-11-21 13:42:37,609 INFO L288 CegarLoopForPetriNet]: 428 programPoint places, -9 predicate places. [2022-11-21 13:42:37,609 INFO L495 AbstractCegarLoop]: Abstraction has has 419 places, 411 transitions, 862 flow [2022-11-21 13:42:37,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 239.33333333333334) internal successors, (1436), 6 states have internal predecessors, (1436), 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) [2022-11-21 13:42:37,610 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:42:37,610 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:42:37,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 13:42:37,611 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 13:42:37,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:42:37,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1069798974, now seen corresponding path program 1 times [2022-11-21 13:42:37,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:42:37,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913608635] [2022-11-21 13:42:37,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:42:37,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:42:37,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:42:38,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:42:38,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:42:38,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913608635] [2022-11-21 13:42:38,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913608635] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:42:38,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:42:38,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 13:42:38,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922419213] [2022-11-21 13:42:38,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:42:38,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 13:42:38,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:42:38,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 13:42:38,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 13:42:38,387 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 430 [2022-11-21 13:42:38,389 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 411 transitions, 862 flow. Second operand has 6 states, 6 states have (on average 234.5) internal successors, (1407), 6 states have internal predecessors, (1407), 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) [2022-11-21 13:42:38,389 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:42:38,389 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 430 [2022-11-21 13:42:38,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:42:39,427 INFO L130 PetriNetUnfolder]: 649/2343 cut-off events. [2022-11-21 13:42:39,428 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 13:42:39,432 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3904 conditions, 2343 events. 649/2343 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 11634 event pairs, 648 based on Foata normal form. 0/2093 useless extension candidates. Maximal degree in co-relation 3553. Up to 1512 conditions per place. [2022-11-21 13:42:39,443 INFO L137 encePairwiseOnDemand]: 412/430 looper letters, 168 selfloop transitions, 15 changer transitions 0/408 dead transitions. [2022-11-21 13:42:39,443 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 408 transitions, 1222 flow [2022-11-21 13:42:39,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 13:42:39,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 13:42:39,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1548 transitions. [2022-11-21 13:42:39,451 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6 [2022-11-21 13:42:39,452 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1548 transitions. [2022-11-21 13:42:39,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1548 transitions. [2022-11-21 13:42:39,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:42:39,454 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1548 transitions. [2022-11-21 13:42:39,459 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 258.0) internal successors, (1548), 6 states have internal predecessors, (1548), 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) [2022-11-21 13:42:39,465 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 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) [2022-11-21 13:42:39,467 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 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) [2022-11-21 13:42:39,467 INFO L175 Difference]: Start difference. First operand has 419 places, 411 transitions, 862 flow. Second operand 6 states and 1548 transitions. [2022-11-21 13:42:39,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 408 transitions, 1222 flow [2022-11-21 13:42:39,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 416 places, 408 transitions, 1192 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 13:42:39,481 INFO L231 Difference]: Finished difference. Result has 416 places, 408 transitions, 856 flow [2022-11-21 13:42:39,482 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=826, PETRI_DIFFERENCE_MINUEND_PLACES=411, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=408, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=393, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=856, PETRI_PLACES=416, PETRI_TRANSITIONS=408} [2022-11-21 13:42:39,483 INFO L288 CegarLoopForPetriNet]: 428 programPoint places, -12 predicate places. [2022-11-21 13:42:39,483 INFO L495 AbstractCegarLoop]: Abstraction has has 416 places, 408 transitions, 856 flow [2022-11-21 13:42:39,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 234.5) internal successors, (1407), 6 states have internal predecessors, (1407), 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) [2022-11-21 13:42:39,485 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:42:39,485 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:42:39,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 13:42:39,485 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 13:42:39,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:42:39,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1313316697, now seen corresponding path program 1 times [2022-11-21 13:42:39,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:42:39,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51581643] [2022-11-21 13:42:39,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:42:39,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:42:39,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:42:40,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:42:40,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:42:40,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51581643] [2022-11-21 13:42:40,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51581643] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:42:40,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:42:40,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 13:42:40,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319999988] [2022-11-21 13:42:40,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:42:40,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 13:42:40,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:42:40,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 13:42:40,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 13:42:40,324 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 430 [2022-11-21 13:42:40,326 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 416 places, 408 transitions, 856 flow. Second operand has 6 states, 6 states have (on average 235.33333333333334) internal successors, (1412), 6 states have internal predecessors, (1412), 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) [2022-11-21 13:42:40,326 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:42:40,327 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 430 [2022-11-21 13:42:40,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:42:41,426 INFO L130 PetriNetUnfolder]: 649/2339 cut-off events. [2022-11-21 13:42:41,427 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-21 13:42:41,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3896 conditions, 2339 events. 649/2339 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 11609 event pairs, 648 based on Foata normal form. 0/2093 useless extension candidates. Maximal degree in co-relation 3549. Up to 1508 conditions per place. [2022-11-21 13:42:41,440 INFO L137 encePairwiseOnDemand]: 412/430 looper letters, 165 selfloop transitions, 15 changer transitions 0/405 dead transitions. [2022-11-21 13:42:41,440 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 405 transitions, 1210 flow [2022-11-21 13:42:41,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 13:42:41,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 13:42:41,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1545 transitions. [2022-11-21 13:42:41,446 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5988372093023255 [2022-11-21 13:42:41,446 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1545 transitions. [2022-11-21 13:42:41,446 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1545 transitions. [2022-11-21 13:42:41,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:42:41,448 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1545 transitions. [2022-11-21 13:42:41,452 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 257.5) internal successors, (1545), 6 states have internal predecessors, (1545), 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) [2022-11-21 13:42:41,468 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 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) [2022-11-21 13:42:41,470 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 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) [2022-11-21 13:42:41,476 INFO L175 Difference]: Start difference. First operand has 416 places, 408 transitions, 856 flow. Second operand 6 states and 1545 transitions. [2022-11-21 13:42:41,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 405 transitions, 1210 flow [2022-11-21 13:42:41,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 413 places, 405 transitions, 1180 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 13:42:41,493 INFO L231 Difference]: Finished difference. Result has 413 places, 405 transitions, 850 flow [2022-11-21 13:42:41,494 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=820, PETRI_DIFFERENCE_MINUEND_PLACES=408, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=405, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=390, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=850, PETRI_PLACES=413, PETRI_TRANSITIONS=405} [2022-11-21 13:42:41,496 INFO L288 CegarLoopForPetriNet]: 428 programPoint places, -15 predicate places. [2022-11-21 13:42:41,497 INFO L495 AbstractCegarLoop]: Abstraction has has 413 places, 405 transitions, 850 flow [2022-11-21 13:42:41,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 235.33333333333334) internal successors, (1412), 6 states have internal predecessors, (1412), 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) [2022-11-21 13:42:41,499 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:42:41,500 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:42:41,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 13:42:41,500 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 13:42:41,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:42:41,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1077547052, now seen corresponding path program 1 times [2022-11-21 13:42:41,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:42:41,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621534197] [2022-11-21 13:42:41,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:42:41,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:42:41,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:42:41,803 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:42:41,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:42:41,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621534197] [2022-11-21 13:42:41,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621534197] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 13:42:41,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1581039082] [2022-11-21 13:42:41,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:42:41,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:42:41,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ba4182-da15-465f-ab22-d9304c290267/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:42:41,813 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ba4182-da15-465f-ab22-d9304c290267/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 13:42:41,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ba4182-da15-465f-ab22-d9304c290267/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-21 13:42:42,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:42:42,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 638 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 13:42:42,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:42:42,424 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:42:42,425 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 13:42:42,727 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:42:42,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1581039082] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 13:42:42,728 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 13:42:42,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-21 13:42:42,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487348168] [2022-11-21 13:42:42,729 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 13:42:42,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-21 13:42:42,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:42:42,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-21 13:42:42,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-21 13:42:42,737 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 403 out of 430 [2022-11-21 13:42:42,741 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 413 places, 405 transitions, 850 flow. Second operand has 10 states, 10 states have (on average 408.6) internal successors, (4086), 10 states have internal predecessors, (4086), 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) [2022-11-21 13:42:42,741 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:42:42,741 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 403 of 430 [2022-11-21 13:42:42,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:42:43,030 INFO L130 PetriNetUnfolder]: 1/617 cut-off events. [2022-11-21 13:42:43,031 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 13:42:43,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 709 conditions, 617 events. 1/617 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 97 event pairs, 0 based on Foata normal form. 2/607 useless extension candidates. Maximal degree in co-relation 94. Up to 17 conditions per place. [2022-11-21 13:42:43,033 INFO L137 encePairwiseOnDemand]: 424/430 looper letters, 47 selfloop transitions, 9 changer transitions 0/439 dead transitions. [2022-11-21 13:42:43,033 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 439 transitions, 1032 flow [2022-11-21 13:42:43,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 13:42:43,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-21 13:42:43,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3685 transitions. [2022-11-21 13:42:43,042 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9521963824289406 [2022-11-21 13:42:43,042 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 3685 transitions. [2022-11-21 13:42:43,043 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 3685 transitions. [2022-11-21 13:42:43,045 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:42:43,045 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 3685 transitions. [2022-11-21 13:42:43,054 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 409.44444444444446) internal successors, (3685), 9 states have internal predecessors, (3685), 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) [2022-11-21 13:42:43,063 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 430.0) internal successors, (4300), 10 states have internal predecessors, (4300), 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) [2022-11-21 13:42:43,064 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 430.0) internal successors, (4300), 10 states have internal predecessors, (4300), 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) [2022-11-21 13:42:43,065 INFO L175 Difference]: Start difference. First operand has 413 places, 405 transitions, 850 flow. Second operand 9 states and 3685 transitions. [2022-11-21 13:42:43,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 439 transitions, 1032 flow [2022-11-21 13:42:43,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 416 places, 439 transitions, 1002 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 13:42:43,075 INFO L231 Difference]: Finished difference. Result has 419 places, 411 transitions, 870 flow [2022-11-21 13:42:43,076 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=820, PETRI_DIFFERENCE_MINUEND_PLACES=408, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=405, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=399, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=870, PETRI_PLACES=419, PETRI_TRANSITIONS=411} [2022-11-21 13:42:43,078 INFO L288 CegarLoopForPetriNet]: 428 programPoint places, -9 predicate places. [2022-11-21 13:42:43,078 INFO L495 AbstractCegarLoop]: Abstraction has has 419 places, 411 transitions, 870 flow [2022-11-21 13:42:43,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 408.6) internal successors, (4086), 10 states have internal predecessors, (4086), 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) [2022-11-21 13:42:43,084 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:42:43,085 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:42:43,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ba4182-da15-465f-ab22-d9304c290267/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-21 13:42:43,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ba4182-da15-465f-ab22-d9304c290267/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-21 13:42:43,293 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 13:42:43,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:42:43,293 INFO L85 PathProgramCache]: Analyzing trace with hash 482614580, now seen corresponding path program 2 times [2022-11-21 13:42:43,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:42:43,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379541253] [2022-11-21 13:42:43,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:42:43,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:42:43,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:42:44,331 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:42:44,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:42:44,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379541253] [2022-11-21 13:42:44,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379541253] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 13:42:44,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112497767] [2022-11-21 13:42:44,332 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 13:42:44,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:42:44,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ba4182-da15-465f-ab22-d9304c290267/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:42:44,334 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ba4182-da15-465f-ab22-d9304c290267/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 13:42:44,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ba4182-da15-465f-ab22-d9304c290267/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-21 13:42:44,691 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-21 13:42:44,692 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 13:42:44,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-21 13:42:44,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:42:44,791 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-21 13:42:44,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2022-11-21 13:42:44,845 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 13:42:44,845 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2022-11-21 13:42:44,885 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 13:42:44,886 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2022-11-21 13:42:44,924 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2022-11-21 13:42:44,924 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 13:42:44,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1112497767] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:42:44,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 13:42:44,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2022-11-21 13:42:44,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222716047] [2022-11-21 13:42:44,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:42:44,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 13:42:44,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:42:44,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 13:42:44,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-21 13:42:44,929 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 430 [2022-11-21 13:42:44,931 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 411 transitions, 870 flow. Second operand has 6 states, 6 states have (on average 243.33333333333334) internal successors, (1460), 6 states have internal predecessors, (1460), 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) [2022-11-21 13:42:44,932 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:42:44,932 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 430 [2022-11-21 13:42:44,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:42:47,793 INFO L130 PetriNetUnfolder]: 1388/4491 cut-off events. [2022-11-21 13:42:47,794 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-21 13:42:47,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7621 conditions, 4491 events. 1388/4491 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 28651 event pairs, 95 based on Foata normal form. 0/4042 useless extension candidates. Maximal degree in co-relation 7115. Up to 1989 conditions per place. [2022-11-21 13:42:47,829 INFO L137 encePairwiseOnDemand]: 402/430 looper letters, 265 selfloop transitions, 74 changer transitions 0/575 dead transitions. [2022-11-21 13:42:47,830 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 575 transitions, 1876 flow [2022-11-21 13:42:47,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 13:42:47,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 13:42:47,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1733 transitions. [2022-11-21 13:42:47,837 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6717054263565891 [2022-11-21 13:42:47,837 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1733 transitions. [2022-11-21 13:42:47,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1733 transitions. [2022-11-21 13:42:47,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:42:47,839 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1733 transitions. [2022-11-21 13:42:47,846 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 288.8333333333333) internal successors, (1733), 6 states have internal predecessors, (1733), 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) [2022-11-21 13:42:47,852 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 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) [2022-11-21 13:42:47,853 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 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) [2022-11-21 13:42:47,853 INFO L175 Difference]: Start difference. First operand has 419 places, 411 transitions, 870 flow. Second operand 6 states and 1733 transitions. [2022-11-21 13:42:47,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 575 transitions, 1876 flow [2022-11-21 13:42:47,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 422 places, 575 transitions, 1870 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-11-21 13:42:47,875 INFO L231 Difference]: Finished difference. Result has 427 places, 478 transitions, 1336 flow [2022-11-21 13:42:47,877 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=862, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=410, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=384, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1336, PETRI_PLACES=427, PETRI_TRANSITIONS=478} [2022-11-21 13:42:47,878 INFO L288 CegarLoopForPetriNet]: 428 programPoint places, -1 predicate places. [2022-11-21 13:42:47,878 INFO L495 AbstractCegarLoop]: Abstraction has has 427 places, 478 transitions, 1336 flow [2022-11-21 13:42:47,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 243.33333333333334) internal successors, (1460), 6 states have internal predecessors, (1460), 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) [2022-11-21 13:42:47,880 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:42:47,881 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:42:47,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ba4182-da15-465f-ab22-d9304c290267/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-21 13:42:48,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ba4182-da15-465f-ab22-d9304c290267/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-21 13:42:48,088 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 13:42:48,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:42:48,088 INFO L85 PathProgramCache]: Analyzing trace with hash 771157745, now seen corresponding path program 1 times [2022-11-21 13:42:48,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:42:48,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593453571] [2022-11-21 13:42:48,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:42:48,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:42:48,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:42:49,367 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:42:49,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:42:49,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593453571] [2022-11-21 13:42:49,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593453571] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 13:42:49,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1805683553] [2022-11-21 13:42:49,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:42:49,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:42:49,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ba4182-da15-465f-ab22-d9304c290267/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:42:49,375 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ba4182-da15-465f-ab22-d9304c290267/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 13:42:49,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ba4182-da15-465f-ab22-d9304c290267/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-21 13:42:50,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:42:50,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 1759 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-21 13:42:50,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:42:50,792 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:42:50,792 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 13:42:51,447 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:42:51,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1805683553] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 13:42:51,448 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 13:42:51,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-21 13:42:51,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807213780] [2022-11-21 13:42:51,449 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 13:42:51,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 13:42:51,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:42:51,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 13:42:51,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-21 13:42:51,460 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 403 out of 430 [2022-11-21 13:42:51,469 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 427 places, 478 transitions, 1336 flow. Second operand has 18 states, 18 states have (on average 409.8888888888889) internal successors, (7378), 18 states have internal predecessors, (7378), 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) [2022-11-21 13:42:51,469 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:42:51,469 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 403 of 430 [2022-11-21 13:42:51,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:42:52,747 INFO L130 PetriNetUnfolder]: 126/1996 cut-off events. [2022-11-21 13:42:52,747 INFO L131 PetriNetUnfolder]: For 108/114 co-relation queries the response was YES. [2022-11-21 13:42:52,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2675 conditions, 1996 events. 126/1996 cut-off events. For 108/114 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 6296 event pairs, 0 based on Foata normal form. 4/1926 useless extension candidates. Maximal degree in co-relation 1741. Up to 173 conditions per place. [2022-11-21 13:42:52,758 INFO L137 encePairwiseOnDemand]: 424/430 looper letters, 103 selfloop transitions, 21 changer transitions 0/574 dead transitions. [2022-11-21 13:42:52,758 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 447 places, 574 transitions, 1828 flow [2022-11-21 13:42:52,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-21 13:42:52,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-21 13:42:52,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 8591 transitions. [2022-11-21 13:42:52,778 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9513842746400886 [2022-11-21 13:42:52,778 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 8591 transitions. [2022-11-21 13:42:52,779 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 8591 transitions. [2022-11-21 13:42:52,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:42:52,856 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 8591 transitions. [2022-11-21 13:42:52,882 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 409.0952380952381) internal successors, (8591), 21 states have internal predecessors, (8591), 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) [2022-11-21 13:42:52,900 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 430.0) internal successors, (9460), 22 states have internal predecessors, (9460), 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) [2022-11-21 13:42:52,905 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 430.0) internal successors, (9460), 22 states have internal predecessors, (9460), 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) [2022-11-21 13:42:52,905 INFO L175 Difference]: Start difference. First operand has 427 places, 478 transitions, 1336 flow. Second operand 21 states and 8591 transitions. [2022-11-21 13:42:52,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 447 places, 574 transitions, 1828 flow [2022-11-21 13:42:52,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 447 places, 574 transitions, 1828 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 13:42:52,923 INFO L231 Difference]: Finished difference. Result has 452 places, 491 transitions, 1466 flow [2022-11-21 13:42:52,924 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=1336, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=478, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=467, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1466, PETRI_PLACES=452, PETRI_TRANSITIONS=491} [2022-11-21 13:42:52,924 INFO L288 CegarLoopForPetriNet]: 428 programPoint places, 24 predicate places. [2022-11-21 13:42:52,924 INFO L495 AbstractCegarLoop]: Abstraction has has 452 places, 491 transitions, 1466 flow [2022-11-21 13:42:52,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 409.8888888888889) internal successors, (7378), 18 states have internal predecessors, (7378), 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) [2022-11-21 13:42:52,928 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:42:52,928 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:42:52,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ba4182-da15-465f-ab22-d9304c290267/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-21 13:42:53,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ba4182-da15-465f-ab22-d9304c290267/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:42:53,138 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 13:42:53,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:42:53,140 INFO L85 PathProgramCache]: Analyzing trace with hash 399804673, now seen corresponding path program 2 times [2022-11-21 13:42:53,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:42:53,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606482413] [2022-11-21 13:42:53,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:42:53,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:42:53,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:42:56,297 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 0 proven. 2233 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:42:56,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:42:56,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606482413] [2022-11-21 13:42:56,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606482413] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 13:42:56,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79621930] [2022-11-21 13:42:56,298 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 13:42:56,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:42:56,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ba4182-da15-465f-ab22-d9304c290267/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:42:56,300 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ba4182-da15-465f-ab22-d9304c290267/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 13:42:56,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ba4182-da15-465f-ab22-d9304c290267/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-21 13:42:57,098 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-21 13:42:57,099 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 13:42:57,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-21 13:42:57,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:42:57,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-21 13:42:57,196 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2022-11-21 13:42:57,237 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 13:42:57,237 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2022-11-21 13:42:57,285 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 13:42:57,285 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2022-11-21 13:42:57,325 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2233 trivial. 0 not checked. [2022-11-21 13:42:57,325 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 13:42:57,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79621930] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:42:57,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 13:42:57,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2022-11-21 13:42:57,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082243040] [2022-11-21 13:42:57,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:42:57,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 13:42:57,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:42:57,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 13:42:57,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2022-11-21 13:42:57,330 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 430 [2022-11-21 13:42:57,332 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 452 places, 491 transitions, 1466 flow. Second operand has 6 states, 6 states have (on average 250.5) internal successors, (1503), 6 states have internal predecessors, (1503), 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) [2022-11-21 13:42:57,332 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:42:57,332 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 430 [2022-11-21 13:42:57,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:43:00,949 INFO L130 PetriNetUnfolder]: 1278/4853 cut-off events. [2022-11-21 13:43:00,950 INFO L131 PetriNetUnfolder]: For 1260/1341 co-relation queries the response was YES. [2022-11-21 13:43:00,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9435 conditions, 4853 events. 1278/4853 cut-off events. For 1260/1341 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 27888 event pairs, 859 based on Foata normal form. 0/4442 useless extension candidates. Maximal degree in co-relation 8253. Up to 3052 conditions per place. [2022-11-21 13:43:00,966 INFO L137 encePairwiseOnDemand]: 424/430 looper letters, 234 selfloop transitions, 5 changer transitions 0/490 dead transitions. [2022-11-21 13:43:00,966 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 456 places, 490 transitions, 1942 flow [2022-11-21 13:43:00,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 13:43:00,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 13:43:00,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1576 transitions. [2022-11-21 13:43:00,973 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6108527131782946 [2022-11-21 13:43:00,973 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1576 transitions. [2022-11-21 13:43:00,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1576 transitions. [2022-11-21 13:43:00,974 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:43:00,975 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1576 transitions. [2022-11-21 13:43:00,978 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 262.6666666666667) internal successors, (1576), 6 states have internal predecessors, (1576), 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) [2022-11-21 13:43:00,983 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 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) [2022-11-21 13:43:00,984 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 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) [2022-11-21 13:43:00,984 INFO L175 Difference]: Start difference. First operand has 452 places, 491 transitions, 1466 flow. Second operand 6 states and 1576 transitions. [2022-11-21 13:43:00,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 456 places, 490 transitions, 1942 flow [2022-11-21 13:43:00,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 450 places, 490 transitions, 1918 flow, removed 6 selfloop flow, removed 6 redundant places. [2022-11-21 13:43:00,998 INFO L231 Difference]: Finished difference. Result has 450 places, 490 transitions, 1450 flow [2022-11-21 13:43:00,999 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=1440, PETRI_DIFFERENCE_MINUEND_PLACES=445, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=490, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=485, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1450, PETRI_PLACES=450, PETRI_TRANSITIONS=490} [2022-11-21 13:43:01,003 INFO L288 CegarLoopForPetriNet]: 428 programPoint places, 22 predicate places. [2022-11-21 13:43:01,003 INFO L495 AbstractCegarLoop]: Abstraction has has 450 places, 490 transitions, 1450 flow [2022-11-21 13:43:01,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 250.5) internal successors, (1503), 6 states have internal predecessors, (1503), 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) [2022-11-21 13:43:01,004 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:43:01,005 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:43:01,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ba4182-da15-465f-ab22-d9304c290267/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-21 13:43:01,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ba4182-da15-465f-ab22-d9304c290267/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:43:01,212 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 13:43:01,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:43:01,213 INFO L85 PathProgramCache]: Analyzing trace with hash 747994625, now seen corresponding path program 1 times [2022-11-21 13:43:01,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:43:01,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189333882] [2022-11-21 13:43:01,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:43:01,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:43:01,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:43:04,400 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 0 proven. 2233 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:43:04,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:43:04,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189333882] [2022-11-21 13:43:04,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189333882] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 13:43:04,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520978612] [2022-11-21 13:43:04,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:43:04,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:43:04,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ba4182-da15-465f-ab22-d9304c290267/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:43:04,403 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ba4182-da15-465f-ab22-d9304c290267/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 13:43:04,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ba4182-da15-465f-ab22-d9304c290267/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-21 13:43:05,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:43:05,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 3679 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-21 13:43:05,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:43:07,052 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 0 proven. 2233 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:43:07,053 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 13:43:08,507 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 0 proven. 2233 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:43:08,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [520978612] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 13:43:08,507 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 13:43:08,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-11-21 13:43:08,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36243269] [2022-11-21 13:43:08,508 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 13:43:08,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-21 13:43:08,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:43:08,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-21 13:43:08,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-11-21 13:43:08,522 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 403 out of 430 [2022-11-21 13:43:08,533 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 490 transitions, 1450 flow. Second operand has 23 states, 23 states have (on average 410.6521739130435) internal successors, (9445), 23 states have internal predecessors, (9445), 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) [2022-11-21 13:43:08,534 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:43:08,534 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 403 of 430 [2022-11-21 13:43:08,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:43:10,014 INFO L130 PetriNetUnfolder]: 133/2320 cut-off events. [2022-11-21 13:43:10,014 INFO L131 PetriNetUnfolder]: For 225/231 co-relation queries the response was YES. [2022-11-21 13:43:10,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3126 conditions, 2320 events. 133/2320 cut-off events. For 225/231 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 6305 event pairs, 0 based on Foata normal form. 3/2250 useless extension candidates. Maximal degree in co-relation 1766. Up to 173 conditions per place. [2022-11-21 13:43:10,021 INFO L137 encePairwiseOnDemand]: 424/430 looper letters, 145 selfloop transitions, 30 changer transitions 0/624 dead transitions. [2022-11-21 13:43:10,021 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 624 transitions, 2156 flow [2022-11-21 13:43:10,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-21 13:43:10,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-21 13:43:10,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 12268 transitions. [2022-11-21 13:43:10,040 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9510077519379845 [2022-11-21 13:43:10,040 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 12268 transitions. [2022-11-21 13:43:10,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 12268 transitions. [2022-11-21 13:43:10,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:43:10,046 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 12268 transitions. [2022-11-21 13:43:10,067 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 408.93333333333334) internal successors, (12268), 30 states have internal predecessors, (12268), 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) [2022-11-21 13:43:10,087 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 430.0) internal successors, (13330), 31 states have internal predecessors, (13330), 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) [2022-11-21 13:43:10,092 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 430.0) internal successors, (13330), 31 states have internal predecessors, (13330), 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) [2022-11-21 13:43:10,092 INFO L175 Difference]: Start difference. First operand has 450 places, 490 transitions, 1450 flow. Second operand 30 states and 12268 transitions. [2022-11-21 13:43:10,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 479 places, 624 transitions, 2156 flow [2022-11-21 13:43:10,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 474 places, 624 transitions, 2146 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 13:43:10,107 INFO L231 Difference]: Finished difference. Result has 478 places, 500 transitions, 1592 flow [2022-11-21 13:43:10,108 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=1440, PETRI_DIFFERENCE_MINUEND_PLACES=445, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=490, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=467, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1592, PETRI_PLACES=478, PETRI_TRANSITIONS=500} [2022-11-21 13:43:10,108 INFO L288 CegarLoopForPetriNet]: 428 programPoint places, 50 predicate places. [2022-11-21 13:43:10,109 INFO L495 AbstractCegarLoop]: Abstraction has has 478 places, 500 transitions, 1592 flow [2022-11-21 13:43:10,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 410.6521739130435) internal successors, (9445), 23 states have internal predecessors, (9445), 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) [2022-11-21 13:43:10,112 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:43:10,112 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:43:10,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ba4182-da15-465f-ab22-d9304c290267/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-21 13:43:10,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ba4182-da15-465f-ab22-d9304c290267/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:43:10,325 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 13:43:10,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:43:10,326 INFO L85 PathProgramCache]: Analyzing trace with hash -711783563, now seen corresponding path program 2 times [2022-11-21 13:43:10,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:43:10,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686039728] [2022-11-21 13:43:10,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:43:10,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:43:10,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:43:15,387 INFO L134 CoverageAnalysis]: Checked inductivity of 4780 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4780 trivial. 0 not checked. [2022-11-21 13:43:15,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:43:15,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686039728] [2022-11-21 13:43:15,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686039728] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:43:15,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:43:15,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 13:43:15,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803903274] [2022-11-21 13:43:15,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:43:15,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 13:43:15,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:43:15,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 13:43:15,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 13:43:15,392 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 430 [2022-11-21 13:43:15,394 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 478 places, 500 transitions, 1592 flow. Second operand has 6 states, 6 states have (on average 260.8333333333333) internal successors, (1565), 6 states have internal predecessors, (1565), 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) [2022-11-21 13:43:15,394 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:43:15,394 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 430 [2022-11-21 13:43:15,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:43:19,196 INFO L130 PetriNetUnfolder]: 1524/5662 cut-off events. [2022-11-21 13:43:19,196 INFO L131 PetriNetUnfolder]: For 1461/1548 co-relation queries the response was YES. [2022-11-21 13:43:19,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11047 conditions, 5662 events. 1524/5662 cut-off events. For 1461/1548 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 31575 event pairs, 624 based on Foata normal form. 16/5257 useless extension candidates. Maximal degree in co-relation 9366. Up to 3074 conditions per place. [2022-11-21 13:43:19,218 INFO L137 encePairwiseOnDemand]: 407/430 looper letters, 311 selfloop transitions, 130 changer transitions 0/709 dead transitions. [2022-11-21 13:43:19,218 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 483 places, 709 transitions, 3268 flow [2022-11-21 13:43:19,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 13:43:19,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 13:43:19,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1760 transitions. [2022-11-21 13:43:19,224 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6821705426356589 [2022-11-21 13:43:19,224 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1760 transitions. [2022-11-21 13:43:19,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1760 transitions. [2022-11-21 13:43:19,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:43:19,225 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1760 transitions. [2022-11-21 13:43:19,227 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 293.3333333333333) internal successors, (1760), 6 states have internal predecessors, (1760), 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) [2022-11-21 13:43:19,231 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 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) [2022-11-21 13:43:19,232 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 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) [2022-11-21 13:43:19,232 INFO L175 Difference]: Start difference. First operand has 478 places, 500 transitions, 1592 flow. Second operand 6 states and 1760 transitions. [2022-11-21 13:43:19,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 483 places, 709 transitions, 3268 flow [2022-11-21 13:43:19,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 465 places, 709 transitions, 3222 flow, removed 5 selfloop flow, removed 18 redundant places. [2022-11-21 13:43:19,251 INFO L231 Difference]: Finished difference. Result has 470 places, 629 transitions, 2774 flow [2022-11-21 13:43:19,251 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=1546, PETRI_DIFFERENCE_MINUEND_PLACES=460, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=500, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=463, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2774, PETRI_PLACES=470, PETRI_TRANSITIONS=629} [2022-11-21 13:43:19,252 INFO L288 CegarLoopForPetriNet]: 428 programPoint places, 42 predicate places. [2022-11-21 13:43:19,252 INFO L495 AbstractCegarLoop]: Abstraction has has 470 places, 629 transitions, 2774 flow [2022-11-21 13:43:19,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 260.8333333333333) internal successors, (1565), 6 states have internal predecessors, (1565), 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) [2022-11-21 13:43:19,253 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:43:19,254 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:43:19,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-21 13:43:19,254 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 13:43:19,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:43:19,255 INFO L85 PathProgramCache]: Analyzing trace with hash 219422934, now seen corresponding path program 1 times [2022-11-21 13:43:19,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:43:19,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212636746] [2022-11-21 13:43:19,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:43:19,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:43:19,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:43:24,166 INFO L134 CoverageAnalysis]: Checked inductivity of 4780 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4780 trivial. 0 not checked. [2022-11-21 13:43:24,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:43:24,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212636746] [2022-11-21 13:43:24,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212636746] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:43:24,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:43:24,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 13:43:24,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757549599] [2022-11-21 13:43:24,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:43:24,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 13:43:24,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:43:24,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 13:43:24,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 13:43:24,173 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 430 [2022-11-21 13:43:24,175 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 470 places, 629 transitions, 2774 flow. Second operand has 6 states, 6 states have (on average 258.5) internal successors, (1551), 6 states have internal predecessors, (1551), 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) [2022-11-21 13:43:24,175 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:43:24,175 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 430 [2022-11-21 13:43:24,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:43:28,566 INFO L130 PetriNetUnfolder]: 1637/6463 cut-off events. [2022-11-21 13:43:28,566 INFO L131 PetriNetUnfolder]: For 3781/3980 co-relation queries the response was YES. [2022-11-21 13:43:28,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14059 conditions, 6463 events. 1637/6463 cut-off events. For 3781/3980 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 40624 event pairs, 508 based on Foata normal form. 8/6099 useless extension candidates. Maximal degree in co-relation 12395. Up to 3338 conditions per place. [2022-11-21 13:43:28,601 INFO L137 encePairwiseOnDemand]: 408/430 looper letters, 439 selfloop transitions, 129 changer transitions 5/837 dead transitions. [2022-11-21 13:43:28,601 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 475 places, 837 transitions, 4958 flow [2022-11-21 13:43:28,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 13:43:28,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 13:43:28,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1739 transitions. [2022-11-21 13:43:28,604 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.674031007751938 [2022-11-21 13:43:28,604 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1739 transitions. [2022-11-21 13:43:28,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1739 transitions. [2022-11-21 13:43:28,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:43:28,605 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1739 transitions. [2022-11-21 13:43:28,608 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 289.8333333333333) internal successors, (1739), 6 states have internal predecessors, (1739), 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) [2022-11-21 13:43:28,611 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 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) [2022-11-21 13:43:28,612 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 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) [2022-11-21 13:43:28,612 INFO L175 Difference]: Start difference. First operand has 470 places, 629 transitions, 2774 flow. Second operand 6 states and 1739 transitions. [2022-11-21 13:43:28,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 475 places, 837 transitions, 4958 flow [2022-11-21 13:43:28,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 475 places, 837 transitions, 4958 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 13:43:28,638 INFO L231 Difference]: Finished difference. Result has 480 places, 756 transitions, 4240 flow [2022-11-21 13:43:28,638 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=2774, PETRI_DIFFERENCE_MINUEND_PLACES=470, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=629, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=593, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4240, PETRI_PLACES=480, PETRI_TRANSITIONS=756} [2022-11-21 13:43:28,639 INFO L288 CegarLoopForPetriNet]: 428 programPoint places, 52 predicate places. [2022-11-21 13:43:28,639 INFO L495 AbstractCegarLoop]: Abstraction has has 480 places, 756 transitions, 4240 flow [2022-11-21 13:43:28,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 258.5) internal successors, (1551), 6 states have internal predecessors, (1551), 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) [2022-11-21 13:43:28,640 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:43:28,641 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:43:28,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-21 13:43:28,641 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 13:43:28,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:43:28,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1315103976, now seen corresponding path program 1 times [2022-11-21 13:43:28,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:43:28,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81631414] [2022-11-21 13:43:28,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:43:28,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:43:28,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:43:32,833 INFO L134 CoverageAnalysis]: Checked inductivity of 4780 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4780 trivial. 0 not checked. [2022-11-21 13:43:32,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:43:32,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81631414] [2022-11-21 13:43:32,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81631414] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:43:32,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:43:32,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 13:43:32,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821337647] [2022-11-21 13:43:32,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:43:32,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 13:43:32,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:43:32,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 13:43:32,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 13:43:32,837 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 430 [2022-11-21 13:43:32,838 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 480 places, 756 transitions, 4240 flow. Second operand has 6 states, 6 states have (on average 257.1666666666667) internal successors, (1543), 6 states have internal predecessors, (1543), 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) [2022-11-21 13:43:32,839 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:43:32,839 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 430 [2022-11-21 13:43:32,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:43:36,728 INFO L130 PetriNetUnfolder]: 1747/6621 cut-off events. [2022-11-21 13:43:36,728 INFO L131 PetriNetUnfolder]: For 5716/5744 co-relation queries the response was YES. [2022-11-21 13:43:36,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16422 conditions, 6621 events. 1747/6621 cut-off events. For 5716/5744 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 40904 event pairs, 657 based on Foata normal form. 0/6316 useless extension candidates. Maximal degree in co-relation 14754. Up to 3984 conditions per place. [2022-11-21 13:43:36,776 INFO L137 encePairwiseOnDemand]: 411/430 looper letters, 505 selfloop transitions, 84 changer transitions 0/854 dead transitions. [2022-11-21 13:43:36,776 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 484 places, 854 transitions, 5932 flow [2022-11-21 13:43:36,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 13:43:36,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 13:43:36,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1673 transitions. [2022-11-21 13:43:36,780 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6484496124031007 [2022-11-21 13:43:36,780 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1673 transitions. [2022-11-21 13:43:36,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1673 transitions. [2022-11-21 13:43:36,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:43:36,782 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1673 transitions. [2022-11-21 13:43:36,785 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 278.8333333333333) internal successors, (1673), 6 states have internal predecessors, (1673), 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) [2022-11-21 13:43:36,790 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 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) [2022-11-21 13:43:36,791 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 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) [2022-11-21 13:43:36,792 INFO L175 Difference]: Start difference. First operand has 480 places, 756 transitions, 4240 flow. Second operand 6 states and 1673 transitions. [2022-11-21 13:43:36,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 484 places, 854 transitions, 5932 flow [2022-11-21 13:43:36,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 484 places, 854 transitions, 5678 flow, removed 127 selfloop flow, removed 0 redundant places. [2022-11-21 13:43:36,837 INFO L231 Difference]: Finished difference. Result has 489 places, 827 transitions, 4776 flow [2022-11-21 13:43:36,838 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=3992, PETRI_DIFFERENCE_MINUEND_PLACES=479, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=756, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=708, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4776, PETRI_PLACES=489, PETRI_TRANSITIONS=827} [2022-11-21 13:43:36,839 INFO L288 CegarLoopForPetriNet]: 428 programPoint places, 61 predicate places. [2022-11-21 13:43:36,839 INFO L495 AbstractCegarLoop]: Abstraction has has 489 places, 827 transitions, 4776 flow [2022-11-21 13:43:36,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 257.1666666666667) internal successors, (1543), 6 states have internal predecessors, (1543), 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) [2022-11-21 13:43:36,840 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:43:36,841 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:43:36,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-21 13:43:36,841 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 13:43:36,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:43:36,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1176412471, now seen corresponding path program 1 times [2022-11-21 13:43:36,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:43:36,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180905288] [2022-11-21 13:43:36,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:43:36,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:44:10,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat