./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_01-list_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2bc0baa-dbf7-44e0-8497-ab31b60f3cdf/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2bc0baa-dbf7-44e0-8497-ab31b60f3cdf/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2bc0baa-dbf7-44e0-8497-ab31b60f3cdf/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2bc0baa-dbf7-44e0-8497-ab31b60f3cdf/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_01-list_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2bc0baa-dbf7-44e0-8497-ab31b60f3cdf/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2bc0baa-dbf7-44e0-8497-ab31b60f3cdf/bin/uautomizer-ZsLfNo2U6R --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 3468cfea1e2552ee69c1236196f7193e72e290c81920516b4f57e05ea8ee84cc --- 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-38b53e6 [2022-11-25 17:25:13,653 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:25:13,655 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:25:13,686 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:25:13,686 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:25:13,687 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:25:13,689 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:25:13,691 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:25:13,693 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:25:13,694 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:25:13,695 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:25:13,696 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:25:13,697 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:25:13,698 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:25:13,699 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:25:13,700 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:25:13,701 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:25:13,708 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:25:13,710 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:25:13,712 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:25:13,715 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:25:13,717 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:25:13,719 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:25:13,721 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:25:13,725 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:25:13,732 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:25:13,732 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:25:13,733 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:25:13,735 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:25:13,736 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:25:13,737 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:25:13,738 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:25:13,740 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:25:13,741 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:25:13,743 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:25:13,744 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:25:13,745 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:25:13,745 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:25:13,745 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:25:13,747 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:25:13,749 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:25:13,750 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2bc0baa-dbf7-44e0-8497-ab31b60f3cdf/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-25 17:25:13,788 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:25:13,789 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:25:13,789 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:25:13,790 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:25:13,790 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:25:13,791 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:25:13,791 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:25:13,792 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:25:13,792 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:25:13,792 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:25:13,793 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:25:13,793 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:25:13,794 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:25:13,794 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:25:13,794 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:25:13,794 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:25:13,795 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:25:13,795 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:25:13,795 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-25 17:25:13,795 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:25:13,795 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:25:13,796 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:25:13,796 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:25:13,796 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:25:13,796 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:25:13,797 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:25:13,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:25:13,797 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:25:13,798 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:25:13,798 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:25:13,798 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:25:13,798 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:25:13,799 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:25:13,799 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:25:13,799 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:25:13,800 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:25:13,800 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2bc0baa-dbf7-44e0-8497-ab31b60f3cdf/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2bc0baa-dbf7-44e0-8497-ab31b60f3cdf/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3468cfea1e2552ee69c1236196f7193e72e290c81920516b4f57e05ea8ee84cc [2022-11-25 17:25:14,129 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:25:14,151 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:25:14,153 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:25:14,155 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:25:14,155 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:25:14,157 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2bc0baa-dbf7-44e0-8497-ab31b60f3cdf/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/goblint-regression/09-regions_01-list_rc.i [2022-11-25 17:25:17,317 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:25:17,655 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:25:17,661 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2bc0baa-dbf7-44e0-8497-ab31b60f3cdf/sv-benchmarks/c/goblint-regression/09-regions_01-list_rc.i [2022-11-25 17:25:17,684 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2bc0baa-dbf7-44e0-8497-ab31b60f3cdf/bin/uautomizer-ZsLfNo2U6R/data/099941904/e4cf43ee38a84b05bc553199c1df6dbd/FLAG9bd767a10 [2022-11-25 17:25:17,704 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2bc0baa-dbf7-44e0-8497-ab31b60f3cdf/bin/uautomizer-ZsLfNo2U6R/data/099941904/e4cf43ee38a84b05bc553199c1df6dbd [2022-11-25 17:25:17,706 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:25:17,708 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:25:17,710 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:25:17,710 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:25:17,715 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:25:17,716 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:25:17" (1/1) ... [2022-11-25 17:25:17,717 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@496c13ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:25:17, skipping insertion in model container [2022-11-25 17:25:17,717 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:25:17" (1/1) ... [2022-11-25 17:25:17,727 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:25:17,784 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:25:18,760 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:25:18,784 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:25:18,874 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:25:18,986 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:25:18,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:25:18 WrapperNode [2022-11-25 17:25:18,988 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:25:18,989 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:25:18,989 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:25:18,990 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:25:18,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:25:18" (1/1) ... [2022-11-25 17:25:19,027 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:25:18" (1/1) ... [2022-11-25 17:25:19,061 INFO L138 Inliner]: procedures = 368, calls = 35, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 171 [2022-11-25 17:25:19,061 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:25:19,062 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:25:19,062 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:25:19,062 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:25:19,073 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:25:18" (1/1) ... [2022-11-25 17:25:19,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:25:18" (1/1) ... [2022-11-25 17:25:19,077 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:25:18" (1/1) ... [2022-11-25 17:25:19,078 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:25:18" (1/1) ... [2022-11-25 17:25:19,091 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:25:18" (1/1) ... [2022-11-25 17:25:19,093 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:25:18" (1/1) ... [2022-11-25 17:25:19,095 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:25:18" (1/1) ... [2022-11-25 17:25:19,097 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:25:18" (1/1) ... [2022-11-25 17:25:19,101 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:25:19,102 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:25:19,102 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:25:19,102 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:25:19,103 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:25:18" (1/1) ... [2022-11-25 17:25:19,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:25:19,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2bc0baa-dbf7-44e0-8497-ab31b60f3cdf/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:25:19,140 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2bc0baa-dbf7-44e0-8497-ab31b60f3cdf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:25:19,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2bc0baa-dbf7-44e0-8497-ab31b60f3cdf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:25:19,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:25:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 17:25:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:25:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 17:25:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 17:25:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-25 17:25:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 17:25:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:25:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 17:25:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-25 17:25:19,196 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-25 17:25:19,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:25:19,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:25:19,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:25:19,199 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 17:25:19,360 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:25:19,363 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:25:19,924 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:25:19,942 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:25:19,951 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 17:25:19,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:25:19 BoogieIcfgContainer [2022-11-25 17:25:19,954 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:25:19,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:25:19,957 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:25:19,961 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:25:19,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:25:17" (1/3) ... [2022-11-25 17:25:19,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17e616eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:25:19, skipping insertion in model container [2022-11-25 17:25:19,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:25:18" (2/3) ... [2022-11-25 17:25:19,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17e616eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:25:19, skipping insertion in model container [2022-11-25 17:25:19,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:25:19" (3/3) ... [2022-11-25 17:25:19,964 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_01-list_rc.i [2022-11-25 17:25:19,973 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 17:25:19,985 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:25:19,986 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-25 17:25:19,986 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 17:25:20,130 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 17:25:20,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 206 places, 202 transitions, 409 flow [2022-11-25 17:25:20,376 INFO L130 PetriNetUnfolder]: 0/201 cut-off events. [2022-11-25 17:25:20,377 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:25:20,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 205 conditions, 201 events. 0/201 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 85 event pairs, 0 based on Foata normal form. 0/183 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-25 17:25:20,381 INFO L82 GeneralOperation]: Start removeDead. Operand has 206 places, 202 transitions, 409 flow [2022-11-25 17:25:20,399 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 205 places, 201 transitions, 405 flow [2022-11-25 17:25:20,403 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 17:25:20,432 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 205 places, 201 transitions, 405 flow [2022-11-25 17:25:20,435 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 205 places, 201 transitions, 405 flow [2022-11-25 17:25:20,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 205 places, 201 transitions, 405 flow [2022-11-25 17:25:20,538 INFO L130 PetriNetUnfolder]: 0/201 cut-off events. [2022-11-25 17:25:20,539 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:25:20,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 205 conditions, 201 events. 0/201 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 85 event pairs, 0 based on Foata normal form. 0/183 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-25 17:25:20,545 INFO L119 LiptonReduction]: Number of co-enabled transitions 4288 [2022-11-25 17:25:54,744 WARN L233 SmtUtils]: Spent 13.37s on a formula simplification that was a NOOP. DAG size: 156 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:26:04,769 WARN L233 SmtUtils]: Spent 10.02s on a formula simplification that was a NOOP. DAG size: 144 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:26:18,794 WARN L233 SmtUtils]: Spent 14.02s on a formula simplification that was a NOOP. DAG size: 156 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:26:28,307 WARN L233 SmtUtils]: Spent 9.51s on a formula simplification that was a NOOP. DAG size: 144 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:26:39,725 WARN L233 SmtUtils]: Spent 11.37s on a formula simplification that was a NOOP. DAG size: 230 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:26:49,548 WARN L233 SmtUtils]: Spent 9.82s on a formula simplification that was a NOOP. DAG size: 216 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:27:01,014 WARN L233 SmtUtils]: Spent 11.46s on a formula simplification that was a NOOP. DAG size: 230 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:27:10,102 WARN L233 SmtUtils]: Spent 9.08s on a formula simplification that was a NOOP. DAG size: 216 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:27:26,489 WARN L233 SmtUtils]: Spent 16.35s on a formula simplification that was a NOOP. DAG size: 267 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:27:55,759 WARN L233 SmtUtils]: Spent 29.27s on a formula simplification that was a NOOP. DAG size: 261 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:28:04,313 WARN L233 SmtUtils]: Spent 8.55s on a formula simplification that was a NOOP. DAG size: 267 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:28:31,997 WARN L233 SmtUtils]: Spent 27.68s on a formula simplification that was a NOOP. DAG size: 261 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:28:32,251 INFO L134 LiptonReduction]: Checked pairs total: 59634 [2022-11-25 17:28:32,251 INFO L136 LiptonReduction]: Total number of compositions: 216 [2022-11-25 17:28:32,268 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:28:32,274 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;@15eeff28, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:28:32,274 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2022-11-25 17:28:32,276 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-11-25 17:28:32,276 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:28:32,277 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:28:32,277 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-25 17:28:32,278 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-25 17:28:32,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:28:32,284 INFO L85 PathProgramCache]: Analyzing trace with hash 687, now seen corresponding path program 1 times [2022-11-25 17:28:32,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:28:32,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017643040] [2022-11-25 17:28:32,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:28:32,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:28:32,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:32,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:28:32,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:28:32,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017643040] [2022-11-25 17:28:32,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017643040] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:28:32,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:28:32,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 17:28:32,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420804688] [2022-11-25 17:28:32,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:28:32,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 17:28:32,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:28:32,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 17:28:32,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:28:32,518 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 418 [2022-11-25 17:28:32,526 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 67 transitions, 137 flow. Second operand has 2 states, 2 states have (on average 201.5) internal successors, (403), 2 states have internal predecessors, (403), 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) [2022-11-25 17:28:32,526 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:28:32,526 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 418 [2022-11-25 17:28:32,528 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:28:32,797 INFO L130 PetriNetUnfolder]: 84/374 cut-off events. [2022-11-25 17:28:32,798 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:28:32,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 569 conditions, 374 events. 84/374 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1721 event pairs, 84 based on Foata normal form. 0/357 useless extension candidates. Maximal degree in co-relation 560. Up to 191 conditions per place. [2022-11-25 17:28:32,808 INFO L137 encePairwiseOnDemand]: 407/418 looper letters, 22 selfloop transitions, 0 changer transitions 0/56 dead transitions. [2022-11-25 17:28:32,808 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 56 transitions, 159 flow [2022-11-25 17:28:32,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 17:28:32,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 17:28:32,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 435 transitions. [2022-11-25 17:28:32,833 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5203349282296651 [2022-11-25 17:28:32,834 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 435 transitions. [2022-11-25 17:28:32,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 435 transitions. [2022-11-25 17:28:32,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:28:32,841 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 435 transitions. [2022-11-25 17:28:32,849 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 217.5) internal successors, (435), 2 states have internal predecessors, (435), 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) [2022-11-25 17:28:32,860 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 418.0) internal successors, (1254), 3 states have internal predecessors, (1254), 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) [2022-11-25 17:28:32,861 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 418.0) internal successors, (1254), 3 states have internal predecessors, (1254), 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) [2022-11-25 17:28:32,863 INFO L175 Difference]: Start difference. First operand has 71 places, 67 transitions, 137 flow. Second operand 2 states and 435 transitions. [2022-11-25 17:28:32,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 56 transitions, 159 flow [2022-11-25 17:28:32,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 56 transitions, 158 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 17:28:32,875 INFO L231 Difference]: Finished difference. Result has 60 places, 56 transitions, 114 flow [2022-11-25 17:28:32,878 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=114, PETRI_PLACES=60, PETRI_TRANSITIONS=56} [2022-11-25 17:28:32,882 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, -11 predicate places. [2022-11-25 17:28:32,883 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 56 transitions, 114 flow [2022-11-25 17:28:32,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 201.5) internal successors, (403), 2 states have internal predecessors, (403), 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) [2022-11-25 17:28:32,883 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:28:32,885 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:28:32,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:28:32,885 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-25 17:28:32,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:28:32,892 INFO L85 PathProgramCache]: Analyzing trace with hash -676164022, now seen corresponding path program 1 times [2022-11-25 17:28:32,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:28:32,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617553996] [2022-11-25 17:28:32,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:28:32,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:28:33,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:33,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:28:33,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:28:33,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617553996] [2022-11-25 17:28:33,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617553996] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:28:33,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:28:33,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:28:33,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503049475] [2022-11-25 17:28:33,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:28:33,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:28:33,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:28:33,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:28:33,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:28:34,301 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 418 [2022-11-25 17:28:34,303 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 56 transitions, 114 flow. Second operand has 6 states, 6 states have (on average 150.5) internal successors, (903), 6 states have internal predecessors, (903), 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) [2022-11-25 17:28:34,303 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:28:34,303 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 418 [2022-11-25 17:28:34,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:28:34,943 INFO L130 PetriNetUnfolder]: 526/1398 cut-off events. [2022-11-25 17:28:34,944 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:28:34,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2541 conditions, 1398 events. 526/1398 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 8002 event pairs, 72 based on Foata normal form. 0/1316 useless extension candidates. Maximal degree in co-relation 2538. Up to 568 conditions per place. [2022-11-25 17:28:34,953 INFO L137 encePairwiseOnDemand]: 390/418 looper letters, 118 selfloop transitions, 70 changer transitions 0/200 dead transitions. [2022-11-25 17:28:34,953 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 200 transitions, 778 flow [2022-11-25 17:28:34,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:28:34,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 17:28:34,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1085 transitions. [2022-11-25 17:28:34,957 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43261562998405106 [2022-11-25 17:28:34,958 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1085 transitions. [2022-11-25 17:28:34,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1085 transitions. [2022-11-25 17:28:34,959 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:28:34,959 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1085 transitions. [2022-11-25 17:28:34,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 180.83333333333334) internal successors, (1085), 6 states have internal predecessors, (1085), 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) [2022-11-25 17:28:34,968 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 418.0) internal successors, (2926), 7 states have internal predecessors, (2926), 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) [2022-11-25 17:28:34,970 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 418.0) internal successors, (2926), 7 states have internal predecessors, (2926), 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) [2022-11-25 17:28:34,970 INFO L175 Difference]: Start difference. First operand has 60 places, 56 transitions, 114 flow. Second operand 6 states and 1085 transitions. [2022-11-25 17:28:34,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 200 transitions, 778 flow [2022-11-25 17:28:34,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 200 transitions, 778 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 17:28:34,974 INFO L231 Difference]: Finished difference. Result has 69 places, 126 transitions, 592 flow [2022-11-25 17:28:34,975 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=592, PETRI_PLACES=69, PETRI_TRANSITIONS=126} [2022-11-25 17:28:34,976 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, -2 predicate places. [2022-11-25 17:28:34,976 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 126 transitions, 592 flow [2022-11-25 17:28:34,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 150.5) internal successors, (903), 6 states have internal predecessors, (903), 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) [2022-11-25 17:28:34,977 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:28:34,977 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:28:34,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:28:34,977 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-25 17:28:34,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:28:34,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1809557300, now seen corresponding path program 1 times [2022-11-25 17:28:34,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:28:34,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957215121] [2022-11-25 17:28:34,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:28:34,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:28:35,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:35,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:28:35,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:28:35,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957215121] [2022-11-25 17:28:35,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957215121] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:28:35,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:28:35,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:28:35,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753023458] [2022-11-25 17:28:35,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:28:35,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:28:35,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:28:35,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:28:35,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:28:35,765 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 418 [2022-11-25 17:28:35,766 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 126 transitions, 592 flow. Second operand has 6 states, 6 states have (on average 152.5) internal successors, (915), 6 states have internal predecessors, (915), 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) [2022-11-25 17:28:35,766 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:28:35,767 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 418 [2022-11-25 17:28:35,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:28:36,528 INFO L130 PetriNetUnfolder]: 761/1838 cut-off events. [2022-11-25 17:28:36,528 INFO L131 PetriNetUnfolder]: For 676/690 co-relation queries the response was YES. [2022-11-25 17:28:36,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4794 conditions, 1838 events. 761/1838 cut-off events. For 676/690 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 10439 event pairs, 357 based on Foata normal form. 0/1759 useless extension candidates. Maximal degree in co-relation 4786. Up to 1494 conditions per place. [2022-11-25 17:28:36,543 INFO L137 encePairwiseOnDemand]: 404/418 looper letters, 117 selfloop transitions, 44 changer transitions 0/189 dead transitions. [2022-11-25 17:28:36,543 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 189 transitions, 1114 flow [2022-11-25 17:28:36,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:28:36,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 17:28:36,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1010 transitions. [2022-11-25 17:28:36,547 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.40271132376395535 [2022-11-25 17:28:36,547 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1010 transitions. [2022-11-25 17:28:36,547 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1010 transitions. [2022-11-25 17:28:36,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:28:36,548 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1010 transitions. [2022-11-25 17:28:36,551 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 168.33333333333334) internal successors, (1010), 6 states have internal predecessors, (1010), 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) [2022-11-25 17:28:36,556 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 418.0) internal successors, (2926), 7 states have internal predecessors, (2926), 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) [2022-11-25 17:28:36,557 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 418.0) internal successors, (2926), 7 states have internal predecessors, (2926), 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) [2022-11-25 17:28:36,558 INFO L175 Difference]: Start difference. First operand has 69 places, 126 transitions, 592 flow. Second operand 6 states and 1010 transitions. [2022-11-25 17:28:36,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 189 transitions, 1114 flow [2022-11-25 17:28:36,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 189 transitions, 1114 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 17:28:36,574 INFO L231 Difference]: Finished difference. Result has 78 places, 165 transitions, 898 flow [2022-11-25 17:28:36,575 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=592, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=898, PETRI_PLACES=78, PETRI_TRANSITIONS=165} [2022-11-25 17:28:36,576 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 7 predicate places. [2022-11-25 17:28:36,576 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 165 transitions, 898 flow [2022-11-25 17:28:36,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 152.5) internal successors, (915), 6 states have internal predecessors, (915), 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) [2022-11-25 17:28:36,577 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:28:36,578 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:28:36,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 17:28:36,578 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-25 17:28:36,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:28:36,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1137224710, now seen corresponding path program 1 times [2022-11-25 17:28:36,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:28:36,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580920351] [2022-11-25 17:28:36,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:28:36,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:28:36,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:37,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:28:37,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:28:37,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580920351] [2022-11-25 17:28:37,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580920351] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:28:37,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:28:37,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:28:37,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810209697] [2022-11-25 17:28:37,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:28:37,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 17:28:37,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:28:37,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 17:28:37,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:28:38,578 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 418 [2022-11-25 17:28:38,580 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 165 transitions, 898 flow. Second operand has 10 states, 10 states have (on average 146.2) internal successors, (1462), 10 states have internal predecessors, (1462), 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) [2022-11-25 17:28:38,580 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:28:38,580 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 418 [2022-11-25 17:28:38,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:28:40,264 INFO L130 PetriNetUnfolder]: 701/1840 cut-off events. [2022-11-25 17:28:40,265 INFO L131 PetriNetUnfolder]: For 1200/1210 co-relation queries the response was YES. [2022-11-25 17:28:40,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5531 conditions, 1840 events. 701/1840 cut-off events. For 1200/1210 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 11268 event pairs, 81 based on Foata normal form. 28/1789 useless extension candidates. Maximal degree in co-relation 5518. Up to 586 conditions per place. [2022-11-25 17:28:40,280 INFO L137 encePairwiseOnDemand]: 397/418 looper letters, 339 selfloop transitions, 67 changer transitions 3/437 dead transitions. [2022-11-25 17:28:40,280 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 437 transitions, 2996 flow [2022-11-25 17:28:40,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 17:28:40,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-25 17:28:40,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2887 transitions. [2022-11-25 17:28:40,288 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.383705475810739 [2022-11-25 17:28:40,289 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2887 transitions. [2022-11-25 17:28:40,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2887 transitions. [2022-11-25 17:28:40,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:28:40,291 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2887 transitions. [2022-11-25 17:28:40,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 160.38888888888889) internal successors, (2887), 18 states have internal predecessors, (2887), 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) [2022-11-25 17:28:40,310 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 418.0) internal successors, (7942), 19 states have internal predecessors, (7942), 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) [2022-11-25 17:28:40,313 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 418.0) internal successors, (7942), 19 states have internal predecessors, (7942), 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) [2022-11-25 17:28:40,313 INFO L175 Difference]: Start difference. First operand has 78 places, 165 transitions, 898 flow. Second operand 18 states and 2887 transitions. [2022-11-25 17:28:40,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 437 transitions, 2996 flow [2022-11-25 17:28:40,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 437 transitions, 2948 flow, removed 24 selfloop flow, removed 0 redundant places. [2022-11-25 17:28:40,333 INFO L231 Difference]: Finished difference. Result has 102 places, 216 transitions, 1418 flow [2022-11-25 17:28:40,334 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=874, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1418, PETRI_PLACES=102, PETRI_TRANSITIONS=216} [2022-11-25 17:28:40,335 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 31 predicate places. [2022-11-25 17:28:40,335 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 216 transitions, 1418 flow [2022-11-25 17:28:40,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 146.2) internal successors, (1462), 10 states have internal predecessors, (1462), 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) [2022-11-25 17:28:40,336 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:28:40,336 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:28:40,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 17:28:40,336 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-25 17:28:40,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:28:40,337 INFO L85 PathProgramCache]: Analyzing trace with hash -195444276, now seen corresponding path program 2 times [2022-11-25 17:28:40,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:28:40,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521749244] [2022-11-25 17:28:40,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:28:40,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:28:40,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:40,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:28:40,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:28:40,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521749244] [2022-11-25 17:28:40,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521749244] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:28:40,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:28:40,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:28:40,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400890102] [2022-11-25 17:28:40,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:28:40,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 17:28:40,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:28:40,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 17:28:40,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:28:42,182 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 418 [2022-11-25 17:28:42,184 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 216 transitions, 1418 flow. Second operand has 10 states, 10 states have (on average 146.2) internal successors, (1462), 10 states have internal predecessors, (1462), 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) [2022-11-25 17:28:42,184 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:28:42,184 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 418 [2022-11-25 17:28:42,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:28:44,252 INFO L130 PetriNetUnfolder]: 898/2371 cut-off events. [2022-11-25 17:28:44,253 INFO L131 PetriNetUnfolder]: For 3359/3377 co-relation queries the response was YES. [2022-11-25 17:28:44,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8112 conditions, 2371 events. 898/2371 cut-off events. For 3359/3377 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 15970 event pairs, 104 based on Foata normal form. 21/2294 useless extension candidates. Maximal degree in co-relation 8092. Up to 835 conditions per place. [2022-11-25 17:28:44,318 INFO L137 encePairwiseOnDemand]: 386/418 looper letters, 279 selfloop transitions, 130 changer transitions 2/439 dead transitions. [2022-11-25 17:28:44,318 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 439 transitions, 3384 flow [2022-11-25 17:28:44,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 17:28:44,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-25 17:28:44,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2032 transitions. [2022-11-25 17:28:44,326 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.405103668261563 [2022-11-25 17:28:44,326 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2032 transitions. [2022-11-25 17:28:44,327 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2032 transitions. [2022-11-25 17:28:44,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:28:44,328 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2032 transitions. [2022-11-25 17:28:44,333 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 169.33333333333334) internal successors, (2032), 12 states have internal predecessors, (2032), 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) [2022-11-25 17:28:44,343 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 418.0) internal successors, (5434), 13 states have internal predecessors, (5434), 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) [2022-11-25 17:28:44,345 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 418.0) internal successors, (5434), 13 states have internal predecessors, (5434), 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) [2022-11-25 17:28:44,345 INFO L175 Difference]: Start difference. First operand has 102 places, 216 transitions, 1418 flow. Second operand 12 states and 2032 transitions. [2022-11-25 17:28:44,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 439 transitions, 3384 flow [2022-11-25 17:28:44,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 439 transitions, 3384 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 17:28:44,381 INFO L231 Difference]: Finished difference. Result has 123 places, 265 transitions, 2370 flow [2022-11-25 17:28:44,382 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=1418, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2370, PETRI_PLACES=123, PETRI_TRANSITIONS=265} [2022-11-25 17:28:44,386 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 52 predicate places. [2022-11-25 17:28:44,386 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 265 transitions, 2370 flow [2022-11-25 17:28:44,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 146.2) internal successors, (1462), 10 states have internal predecessors, (1462), 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) [2022-11-25 17:28:44,387 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:28:44,387 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:28:44,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 17:28:44,388 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-25 17:28:44,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:28:44,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1279180972, now seen corresponding path program 1 times [2022-11-25 17:28:44,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:28:44,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399032756] [2022-11-25 17:28:44,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:28:44,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:28:44,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:45,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:28:45,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:28:45,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399032756] [2022-11-25 17:28:45,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399032756] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:28:45,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:28:45,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:28:45,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554438646] [2022-11-25 17:28:45,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:28:45,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 17:28:45,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:28:45,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 17:28:45,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:28:46,095 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 418 [2022-11-25 17:28:46,097 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 265 transitions, 2370 flow. Second operand has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 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) [2022-11-25 17:28:46,097 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:28:46,097 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 418 [2022-11-25 17:28:46,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:28:47,732 INFO L130 PetriNetUnfolder]: 1094/2752 cut-off events. [2022-11-25 17:28:47,733 INFO L131 PetriNetUnfolder]: For 7201/7249 co-relation queries the response was YES. [2022-11-25 17:28:47,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10782 conditions, 2752 events. 1094/2752 cut-off events. For 7201/7249 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 18175 event pairs, 306 based on Foata normal form. 0/2642 useless extension candidates. Maximal degree in co-relation 10752. Up to 1811 conditions per place. [2022-11-25 17:28:47,765 INFO L137 encePairwiseOnDemand]: 404/418 looper letters, 300 selfloop transitions, 89 changer transitions 2/427 dead transitions. [2022-11-25 17:28:47,765 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 427 transitions, 4307 flow [2022-11-25 17:28:47,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 17:28:47,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-25 17:28:47,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2393 transitions. [2022-11-25 17:28:47,773 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.381658692185008 [2022-11-25 17:28:47,773 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2393 transitions. [2022-11-25 17:28:47,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2393 transitions. [2022-11-25 17:28:47,775 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:28:47,775 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2393 transitions. [2022-11-25 17:28:47,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 159.53333333333333) internal successors, (2393), 15 states have internal predecessors, (2393), 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) [2022-11-25 17:28:47,791 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 418.0) internal successors, (6688), 16 states have internal predecessors, (6688), 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) [2022-11-25 17:28:47,794 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 418.0) internal successors, (6688), 16 states have internal predecessors, (6688), 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) [2022-11-25 17:28:47,794 INFO L175 Difference]: Start difference. First operand has 123 places, 265 transitions, 2370 flow. Second operand 15 states and 2393 transitions. [2022-11-25 17:28:47,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 427 transitions, 4307 flow [2022-11-25 17:28:47,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 427 transitions, 4295 flow, removed 6 selfloop flow, removed 0 redundant places. [2022-11-25 17:28:47,852 INFO L231 Difference]: Finished difference. Result has 141 places, 295 transitions, 2875 flow [2022-11-25 17:28:47,853 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=2360, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=265, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2875, PETRI_PLACES=141, PETRI_TRANSITIONS=295} [2022-11-25 17:28:47,856 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 70 predicate places. [2022-11-25 17:28:47,856 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 295 transitions, 2875 flow [2022-11-25 17:28:47,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 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) [2022-11-25 17:28:47,857 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:28:47,857 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:28:47,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 17:28:47,857 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-25 17:28:47,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:28:47,858 INFO L85 PathProgramCache]: Analyzing trace with hash 45862824, now seen corresponding path program 3 times [2022-11-25 17:28:47,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:28:47,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843385277] [2022-11-25 17:28:47,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:28:47,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:28:47,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:48,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:28:48,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:28:48,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843385277] [2022-11-25 17:28:48,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843385277] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:28:48,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:28:48,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:28:48,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123926592] [2022-11-25 17:28:48,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:28:48,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 17:28:48,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:28:48,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 17:28:48,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:28:49,322 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 418 [2022-11-25 17:28:49,325 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 295 transitions, 2875 flow. Second operand has 10 states, 10 states have (on average 146.2) internal successors, (1462), 10 states have internal predecessors, (1462), 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) [2022-11-25 17:28:49,325 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:28:49,325 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 418 [2022-11-25 17:28:49,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:28:51,613 INFO L130 PetriNetUnfolder]: 1063/2836 cut-off events. [2022-11-25 17:28:51,613 INFO L131 PetriNetUnfolder]: For 9429/9473 co-relation queries the response was YES. [2022-11-25 17:28:51,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12103 conditions, 2836 events. 1063/2836 cut-off events. For 9429/9473 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 20293 event pairs, 157 based on Foata normal form. 23/2743 useless extension candidates. Maximal degree in co-relation 12068. Up to 824 conditions per place. [2022-11-25 17:28:51,647 INFO L137 encePairwiseOnDemand]: 386/418 looper letters, 321 selfloop transitions, 162 changer transitions 2/519 dead transitions. [2022-11-25 17:28:51,647 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 519 transitions, 5399 flow [2022-11-25 17:28:51,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 17:28:51,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-25 17:28:51,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2182 transitions. [2022-11-25 17:28:51,654 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.40154582259845417 [2022-11-25 17:28:51,654 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2182 transitions. [2022-11-25 17:28:51,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2182 transitions. [2022-11-25 17:28:51,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:28:51,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2182 transitions. [2022-11-25 17:28:51,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 167.84615384615384) internal successors, (2182), 13 states have internal predecessors, (2182), 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) [2022-11-25 17:28:51,668 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 418.0) internal successors, (5852), 14 states have internal predecessors, (5852), 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) [2022-11-25 17:28:51,670 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 418.0) internal successors, (5852), 14 states have internal predecessors, (5852), 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) [2022-11-25 17:28:51,671 INFO L175 Difference]: Start difference. First operand has 141 places, 295 transitions, 2875 flow. Second operand 13 states and 2182 transitions. [2022-11-25 17:28:51,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 519 transitions, 5399 flow [2022-11-25 17:28:51,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 519 transitions, 5367 flow, removed 11 selfloop flow, removed 2 redundant places. [2022-11-25 17:28:51,741 INFO L231 Difference]: Finished difference. Result has 161 places, 348 transitions, 4202 flow [2022-11-25 17:28:51,741 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=2855, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=111, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4202, PETRI_PLACES=161, PETRI_TRANSITIONS=348} [2022-11-25 17:28:51,742 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 90 predicate places. [2022-11-25 17:28:51,742 INFO L495 AbstractCegarLoop]: Abstraction has has 161 places, 348 transitions, 4202 flow [2022-11-25 17:28:51,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 146.2) internal successors, (1462), 10 states have internal predecessors, (1462), 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) [2022-11-25 17:28:51,743 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:28:51,743 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:28:51,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 17:28:51,743 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-25 17:28:51,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:28:51,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1966366940, now seen corresponding path program 4 times [2022-11-25 17:28:51,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:28:51,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691624644] [2022-11-25 17:28:51,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:28:51,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:28:51,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:52,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:28:52,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:28:52,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691624644] [2022-11-25 17:28:52,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691624644] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:28:52,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:28:52,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:28:52,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391798143] [2022-11-25 17:28:52,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:28:52,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 17:28:52,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:28:52,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 17:28:52,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:28:53,439 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 418 [2022-11-25 17:28:53,440 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 348 transitions, 4202 flow. Second operand has 10 states, 10 states have (on average 146.2) internal successors, (1462), 10 states have internal predecessors, (1462), 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) [2022-11-25 17:28:53,440 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:28:53,441 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 418 [2022-11-25 17:28:53,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:28:55,874 INFO L130 PetriNetUnfolder]: 1600/4197 cut-off events. [2022-11-25 17:28:55,874 INFO L131 PetriNetUnfolder]: For 20576/20655 co-relation queries the response was YES. [2022-11-25 17:28:55,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19882 conditions, 4197 events. 1600/4197 cut-off events. For 20576/20655 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 33342 event pairs, 108 based on Foata normal form. 38/4064 useless extension candidates. Maximal degree in co-relation 19838. Up to 1016 conditions per place. [2022-11-25 17:28:55,937 INFO L137 encePairwiseOnDemand]: 390/418 looper letters, 449 selfloop transitions, 262 changer transitions 3/748 dead transitions. [2022-11-25 17:28:55,937 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 748 transitions, 9440 flow [2022-11-25 17:28:55,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-25 17:28:55,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-25 17:28:55,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2638 transitions. [2022-11-25 17:28:55,945 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3944377990430622 [2022-11-25 17:28:55,945 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2638 transitions. [2022-11-25 17:28:55,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2638 transitions. [2022-11-25 17:28:55,947 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:28:55,947 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2638 transitions. [2022-11-25 17:28:55,968 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 164.875) internal successors, (2638), 16 states have internal predecessors, (2638), 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) [2022-11-25 17:28:55,978 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 418.0) internal successors, (7106), 17 states have internal predecessors, (7106), 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) [2022-11-25 17:28:55,980 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 418.0) internal successors, (7106), 17 states have internal predecessors, (7106), 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) [2022-11-25 17:28:55,980 INFO L175 Difference]: Start difference. First operand has 161 places, 348 transitions, 4202 flow. Second operand 16 states and 2638 transitions. [2022-11-25 17:28:55,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 748 transitions, 9440 flow [2022-11-25 17:28:56,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 748 transitions, 9398 flow, removed 13 selfloop flow, removed 1 redundant places. [2022-11-25 17:28:56,157 INFO L231 Difference]: Finished difference. Result has 185 places, 480 transitions, 7218 flow [2022-11-25 17:28:56,158 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=4180, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=348, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=143, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=7218, PETRI_PLACES=185, PETRI_TRANSITIONS=480} [2022-11-25 17:28:56,161 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 114 predicate places. [2022-11-25 17:28:56,161 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 480 transitions, 7218 flow [2022-11-25 17:28:56,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 146.2) internal successors, (1462), 10 states have internal predecessors, (1462), 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) [2022-11-25 17:28:56,166 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:28:56,166 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:28:56,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 17:28:56,166 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-25 17:28:56,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:28:56,167 INFO L85 PathProgramCache]: Analyzing trace with hash -57038708, now seen corresponding path program 5 times [2022-11-25 17:28:56,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:28:56,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132803185] [2022-11-25 17:28:56,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:28:56,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:28:56,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:56,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:28:56,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:28:56,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132803185] [2022-11-25 17:28:56,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132803185] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:28:56,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:28:56,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:28:56,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538524025] [2022-11-25 17:28:56,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:28:56,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 17:28:56,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:28:56,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 17:28:56,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:28:58,030 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 418 [2022-11-25 17:28:58,031 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 480 transitions, 7218 flow. Second operand has 10 states, 10 states have (on average 146.2) internal successors, (1462), 10 states have internal predecessors, (1462), 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) [2022-11-25 17:28:58,031 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:28:58,031 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 418 [2022-11-25 17:28:58,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:29:01,011 INFO L130 PetriNetUnfolder]: 1964/5144 cut-off events. [2022-11-25 17:29:01,012 INFO L131 PetriNetUnfolder]: For 39656/39816 co-relation queries the response was YES. [2022-11-25 17:29:01,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27059 conditions, 5144 events. 1964/5144 cut-off events. For 39656/39816 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 43076 event pairs, 276 based on Foata normal form. 97/5024 useless extension candidates. Maximal degree in co-relation 27005. Up to 1274 conditions per place. [2022-11-25 17:29:01,071 INFO L137 encePairwiseOnDemand]: 386/418 looper letters, 439 selfloop transitions, 315 changer transitions 2/790 dead transitions. [2022-11-25 17:29:01,071 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 790 transitions, 11977 flow [2022-11-25 17:29:01,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 17:29:01,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-25 17:29:01,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2330 transitions. [2022-11-25 17:29:01,079 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.39815447710184554 [2022-11-25 17:29:01,079 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2330 transitions. [2022-11-25 17:29:01,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2330 transitions. [2022-11-25 17:29:01,080 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:29:01,081 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2330 transitions. [2022-11-25 17:29:01,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 166.42857142857142) internal successors, (2330), 14 states have internal predecessors, (2330), 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) [2022-11-25 17:29:01,094 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 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) [2022-11-25 17:29:01,096 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 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) [2022-11-25 17:29:01,096 INFO L175 Difference]: Start difference. First operand has 185 places, 480 transitions, 7218 flow. Second operand 14 states and 2330 transitions. [2022-11-25 17:29:01,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 790 transitions, 11977 flow [2022-11-25 17:29:01,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 790 transitions, 11891 flow, removed 34 selfloop flow, removed 4 redundant places. [2022-11-25 17:29:01,448 INFO L231 Difference]: Finished difference. Result has 206 places, 580 transitions, 10220 flow [2022-11-25 17:29:01,449 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=7144, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=480, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=220, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=10220, PETRI_PLACES=206, PETRI_TRANSITIONS=580} [2022-11-25 17:29:01,449 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 135 predicate places. [2022-11-25 17:29:01,450 INFO L495 AbstractCegarLoop]: Abstraction has has 206 places, 580 transitions, 10220 flow [2022-11-25 17:29:01,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 146.2) internal successors, (1462), 10 states have internal predecessors, (1462), 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) [2022-11-25 17:29:01,450 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:29:01,451 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:29:01,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 17:29:01,451 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-25 17:29:01,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:29:01,451 INFO L85 PathProgramCache]: Analyzing trace with hash 195861492, now seen corresponding path program 6 times [2022-11-25 17:29:01,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:29:01,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158231453] [2022-11-25 17:29:01,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:29:01,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:29:01,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:02,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:29:02,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:29:02,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158231453] [2022-11-25 17:29:02,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158231453] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:29:02,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:29:02,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:29:02,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689549966] [2022-11-25 17:29:02,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:29:02,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 17:29:02,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:29:02,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 17:29:02,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:29:03,102 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 418 [2022-11-25 17:29:03,103 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 580 transitions, 10220 flow. Second operand has 10 states, 10 states have (on average 146.2) internal successors, (1462), 10 states have internal predecessors, (1462), 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) [2022-11-25 17:29:03,103 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:29:03,104 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 418 [2022-11-25 17:29:03,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:29:06,196 INFO L130 PetriNetUnfolder]: 2191/5694 cut-off events. [2022-11-25 17:29:06,196 INFO L131 PetriNetUnfolder]: For 59569/59711 co-relation queries the response was YES. [2022-11-25 17:29:06,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32679 conditions, 5694 events. 2191/5694 cut-off events. For 59569/59711 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 48892 event pairs, 203 based on Foata normal form. 71/5537 useless extension candidates. Maximal degree in co-relation 32614. Up to 1668 conditions per place. [2022-11-25 17:29:06,269 INFO L137 encePairwiseOnDemand]: 390/418 looper letters, 453 selfloop transitions, 400 changer transitions 3/890 dead transitions. [2022-11-25 17:29:06,269 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 890 transitions, 14998 flow [2022-11-25 17:29:06,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 17:29:06,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-25 17:29:06,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2955 transitions. [2022-11-25 17:29:06,279 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3927432216905901 [2022-11-25 17:29:06,279 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2955 transitions. [2022-11-25 17:29:06,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2955 transitions. [2022-11-25 17:29:06,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:29:06,281 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2955 transitions. [2022-11-25 17:29:06,287 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 164.16666666666666) internal successors, (2955), 18 states have internal predecessors, (2955), 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) [2022-11-25 17:29:06,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 418.0) internal successors, (7942), 19 states have internal predecessors, (7942), 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) [2022-11-25 17:29:06,302 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 418.0) internal successors, (7942), 19 states have internal predecessors, (7942), 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) [2022-11-25 17:29:06,302 INFO L175 Difference]: Start difference. First operand has 206 places, 580 transitions, 10220 flow. Second operand 18 states and 2955 transitions. [2022-11-25 17:29:06,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 890 transitions, 14998 flow [2022-11-25 17:29:06,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 890 transitions, 14938 flow, removed 30 selfloop flow, removed 0 redundant places. [2022-11-25 17:29:07,012 INFO L231 Difference]: Finished difference. Result has 235 places, 660 transitions, 13427 flow [2022-11-25 17:29:07,014 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=10174, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=580, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=321, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=13427, PETRI_PLACES=235, PETRI_TRANSITIONS=660} [2022-11-25 17:29:07,014 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 164 predicate places. [2022-11-25 17:29:07,015 INFO L495 AbstractCegarLoop]: Abstraction has has 235 places, 660 transitions, 13427 flow [2022-11-25 17:29:07,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 146.2) internal successors, (1462), 10 states have internal predecessors, (1462), 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) [2022-11-25 17:29:07,015 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:29:07,016 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:29:07,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 17:29:07,016 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-25 17:29:07,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:29:07,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1750125616, now seen corresponding path program 7 times [2022-11-25 17:29:07,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:29:07,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743333660] [2022-11-25 17:29:07,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:29:07,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:29:07,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:07,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:29:07,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:29:07,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743333660] [2022-11-25 17:29:07,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743333660] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:29:07,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:29:07,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:29:07,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100937136] [2022-11-25 17:29:07,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:29:07,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 17:29:07,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:29:07,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 17:29:07,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:29:08,556 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 418 [2022-11-25 17:29:08,557 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 660 transitions, 13427 flow. Second operand has 10 states, 10 states have (on average 146.2) internal successors, (1462), 10 states have internal predecessors, (1462), 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) [2022-11-25 17:29:08,558 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:29:08,558 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 418 [2022-11-25 17:29:08,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:29:11,872 INFO L130 PetriNetUnfolder]: 2502/6557 cut-off events. [2022-11-25 17:29:11,872 INFO L131 PetriNetUnfolder]: For 92373/92602 co-relation queries the response was YES. [2022-11-25 17:29:11,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40759 conditions, 6557 events. 2502/6557 cut-off events. For 92373/92602 co-relation queries the response was YES. Maximal size of possible extension queue 267. Compared 58518 event pairs, 404 based on Foata normal form. 130/6403 useless extension candidates. Maximal degree in co-relation 40681. Up to 1739 conditions per place. [2022-11-25 17:29:11,956 INFO L137 encePairwiseOnDemand]: 386/418 looper letters, 545 selfloop transitions, 403 changer transitions 2/984 dead transitions. [2022-11-25 17:29:11,957 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 984 transitions, 19680 flow [2022-11-25 17:29:11,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 17:29:11,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-25 17:29:11,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2317 transitions. [2022-11-25 17:29:11,964 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.39593301435406697 [2022-11-25 17:29:11,965 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2317 transitions. [2022-11-25 17:29:11,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2317 transitions. [2022-11-25 17:29:11,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:29:11,966 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2317 transitions. [2022-11-25 17:29:11,971 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 165.5) internal successors, (2317), 14 states have internal predecessors, (2317), 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) [2022-11-25 17:29:11,979 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 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) [2022-11-25 17:29:11,981 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 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) [2022-11-25 17:29:11,982 INFO L175 Difference]: Start difference. First operand has 235 places, 660 transitions, 13427 flow. Second operand 14 states and 2317 transitions. [2022-11-25 17:29:11,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 984 transitions, 19680 flow [2022-11-25 17:29:13,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 984 transitions, 19612 flow, removed 25 selfloop flow, removed 4 redundant places. [2022-11-25 17:29:13,206 INFO L231 Difference]: Finished difference. Result has 256 places, 754 transitions, 17312 flow [2022-11-25 17:29:13,207 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=13378, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=660, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=313, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=17312, PETRI_PLACES=256, PETRI_TRANSITIONS=754} [2022-11-25 17:29:13,207 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 185 predicate places. [2022-11-25 17:29:13,207 INFO L495 AbstractCegarLoop]: Abstraction has has 256 places, 754 transitions, 17312 flow [2022-11-25 17:29:13,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 146.2) internal successors, (1462), 10 states have internal predecessors, (1462), 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) [2022-11-25 17:29:13,208 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:29:13,208 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:29:13,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 17:29:13,209 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-25 17:29:13,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:29:13,209 INFO L85 PathProgramCache]: Analyzing trace with hash 500623422, now seen corresponding path program 8 times [2022-11-25 17:29:13,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:29:13,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525431127] [2022-11-25 17:29:13,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:29:13,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:29:13,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:13,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:29:13,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:29:13,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525431127] [2022-11-25 17:29:13,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525431127] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:29:13,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:29:13,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:29:13,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632415405] [2022-11-25 17:29:13,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:29:13,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 17:29:13,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:29:13,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 17:29:13,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:29:14,777 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 418 [2022-11-25 17:29:14,779 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 754 transitions, 17312 flow. Second operand has 10 states, 10 states have (on average 146.2) internal successors, (1462), 10 states have internal predecessors, (1462), 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) [2022-11-25 17:29:14,779 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:29:14,779 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 418 [2022-11-25 17:29:14,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:29:18,995 INFO L130 PetriNetUnfolder]: 2661/6991 cut-off events. [2022-11-25 17:29:18,995 INFO L131 PetriNetUnfolder]: For 123043/123213 co-relation queries the response was YES. [2022-11-25 17:29:19,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46221 conditions, 6991 events. 2661/6991 cut-off events. For 123043/123213 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 63552 event pairs, 285 based on Foata normal form. 69/6755 useless extension candidates. Maximal degree in co-relation 46132. Up to 1787 conditions per place. [2022-11-25 17:29:19,249 INFO L137 encePairwiseOnDemand]: 390/418 looper letters, 543 selfloop transitions, 477 changer transitions 3/1057 dead transitions. [2022-11-25 17:29:19,250 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 1057 transitions, 22808 flow [2022-11-25 17:29:19,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-25 17:29:19,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-11-25 17:29:19,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2796 transitions. [2022-11-25 17:29:19,259 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.39347030678300027 [2022-11-25 17:29:19,259 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2796 transitions. [2022-11-25 17:29:19,259 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2796 transitions. [2022-11-25 17:29:19,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:29:19,262 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2796 transitions. [2022-11-25 17:29:19,267 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 164.47058823529412) internal successors, (2796), 17 states have internal predecessors, (2796), 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) [2022-11-25 17:29:19,274 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 418.0) internal successors, (7524), 18 states have internal predecessors, (7524), 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) [2022-11-25 17:29:19,276 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 418.0) internal successors, (7524), 18 states have internal predecessors, (7524), 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) [2022-11-25 17:29:19,276 INFO L175 Difference]: Start difference. First operand has 256 places, 754 transitions, 17312 flow. Second operand 17 states and 2796 transitions. [2022-11-25 17:29:19,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 1057 transitions, 22808 flow [2022-11-25 17:29:20,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 272 places, 1057 transitions, 22726 flow, removed 41 selfloop flow, removed 0 redundant places. [2022-11-25 17:29:20,300 INFO L231 Difference]: Finished difference. Result has 283 places, 819 transitions, 20861 flow [2022-11-25 17:29:20,301 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=17240, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=754, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=412, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=289, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=20861, PETRI_PLACES=283, PETRI_TRANSITIONS=819} [2022-11-25 17:29:20,302 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 212 predicate places. [2022-11-25 17:29:20,302 INFO L495 AbstractCegarLoop]: Abstraction has has 283 places, 819 transitions, 20861 flow [2022-11-25 17:29:20,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 146.2) internal successors, (1462), 10 states have internal predecessors, (1462), 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) [2022-11-25 17:29:20,302 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:29:20,303 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:29:20,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 17:29:20,303 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-25 17:29:20,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:29:20,303 INFO L85 PathProgramCache]: Analyzing trace with hash -77851318, now seen corresponding path program 9 times [2022-11-25 17:29:20,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:29:20,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776496733] [2022-11-25 17:29:20,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:29:20,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:29:20,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:20,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:29:20,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:29:20,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776496733] [2022-11-25 17:29:20,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776496733] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:29:20,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:29:20,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:29:20,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876550506] [2022-11-25 17:29:20,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:29:20,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 17:29:20,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:29:20,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 17:29:20,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:29:21,970 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 418 [2022-11-25 17:29:21,972 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 819 transitions, 20861 flow. Second operand has 10 states, 10 states have (on average 146.2) internal successors, (1462), 10 states have internal predecessors, (1462), 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) [2022-11-25 17:29:21,972 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:29:21,973 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 418 [2022-11-25 17:29:21,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:29:26,453 INFO L130 PetriNetUnfolder]: 2881/7602 cut-off events. [2022-11-25 17:29:26,454 INFO L131 PetriNetUnfolder]: For 166424/166712 co-relation queries the response was YES. [2022-11-25 17:29:26,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53425 conditions, 7602 events. 2881/7602 cut-off events. For 166424/166712 co-relation queries the response was YES. Maximal size of possible extension queue 319. Compared 70564 event pairs, 314 based on Foata normal form. 151/7432 useless extension candidates. Maximal degree in co-relation 53324. Up to 2186 conditions per place. [2022-11-25 17:29:26,555 INFO L137 encePairwiseOnDemand]: 387/418 looper letters, 494 selfloop transitions, 560 changer transitions 2/1090 dead transitions. [2022-11-25 17:29:26,555 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 1090 transitions, 26977 flow [2022-11-25 17:29:26,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 17:29:26,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-25 17:29:26,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2303 transitions. [2022-11-25 17:29:26,559 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.39354066985645936 [2022-11-25 17:29:26,559 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2303 transitions. [2022-11-25 17:29:26,559 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2303 transitions. [2022-11-25 17:29:26,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:29:26,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2303 transitions. [2022-11-25 17:29:26,564 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 164.5) internal successors, (2303), 14 states have internal predecessors, (2303), 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) [2022-11-25 17:29:26,570 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 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) [2022-11-25 17:29:26,571 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 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) [2022-11-25 17:29:26,571 INFO L175 Difference]: Start difference. First operand has 283 places, 819 transitions, 20861 flow. Second operand 14 states and 2303 transitions. [2022-11-25 17:29:26,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 1090 transitions, 26977 flow [2022-11-25 17:29:28,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 1090 transitions, 26903 flow, removed 28 selfloop flow, removed 4 redundant places. [2022-11-25 17:29:28,154 INFO L231 Difference]: Finished difference. Result has 304 places, 888 transitions, 25193 flow [2022-11-25 17:29:28,155 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=20795, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=819, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=491, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=25193, PETRI_PLACES=304, PETRI_TRANSITIONS=888} [2022-11-25 17:29:28,155 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 233 predicate places. [2022-11-25 17:29:28,156 INFO L495 AbstractCegarLoop]: Abstraction has has 304 places, 888 transitions, 25193 flow [2022-11-25 17:29:28,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 146.2) internal successors, (1462), 10 states have internal predecessors, (1462), 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) [2022-11-25 17:29:28,156 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:29:28,156 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:29:28,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 17:29:28,156 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-25 17:29:28,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:29:28,157 INFO L85 PathProgramCache]: Analyzing trace with hash -391723528, now seen corresponding path program 10 times [2022-11-25 17:29:28,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:29:28,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022468447] [2022-11-25 17:29:28,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:29:28,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:29:28,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:28,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:29:28,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:29:28,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022468447] [2022-11-25 17:29:28,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022468447] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:29:28,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:29:28,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:29:28,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767051051] [2022-11-25 17:29:28,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:29:28,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 17:29:28,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:29:28,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 17:29:28,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:29:29,432 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 418 [2022-11-25 17:29:29,434 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 888 transitions, 25193 flow. Second operand has 10 states, 10 states have (on average 146.2) internal successors, (1462), 10 states have internal predecessors, (1462), 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) [2022-11-25 17:29:29,434 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:29:29,435 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 418 [2022-11-25 17:29:29,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:29:34,713 INFO L130 PetriNetUnfolder]: 3043/8041 cut-off events. [2022-11-25 17:29:34,714 INFO L131 PetriNetUnfolder]: For 218957/219255 co-relation queries the response was YES. [2022-11-25 17:29:34,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60097 conditions, 8041 events. 3043/8041 cut-off events. For 218957/219255 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 75696 event pairs, 338 based on Foata normal form. 147/7846 useless extension candidates. Maximal degree in co-relation 59985. Up to 2472 conditions per place. [2022-11-25 17:29:34,822 INFO L137 encePairwiseOnDemand]: 389/418 looper letters, 454 selfloop transitions, 595 changer transitions 2/1085 dead transitions. [2022-11-25 17:29:34,822 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 1085 transitions, 30198 flow [2022-11-25 17:29:34,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 17:29:34,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-25 17:29:34,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2119 transitions. [2022-11-25 17:29:34,826 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.38995215311004783 [2022-11-25 17:29:34,826 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2119 transitions. [2022-11-25 17:29:34,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2119 transitions. [2022-11-25 17:29:34,827 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:29:34,828 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2119 transitions. [2022-11-25 17:29:34,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 163.0) internal successors, (2119), 13 states have internal predecessors, (2119), 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) [2022-11-25 17:29:34,835 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 418.0) internal successors, (5852), 14 states have internal predecessors, (5852), 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) [2022-11-25 17:29:34,836 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 418.0) internal successors, (5852), 14 states have internal predecessors, (5852), 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) [2022-11-25 17:29:34,837 INFO L175 Difference]: Start difference. First operand has 304 places, 888 transitions, 25193 flow. Second operand 13 states and 2119 transitions. [2022-11-25 17:29:34,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 1085 transitions, 30198 flow [2022-11-25 17:29:36,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 1085 transitions, 30024 flow, removed 87 selfloop flow, removed 0 redundant places. [2022-11-25 17:29:36,708 INFO L231 Difference]: Finished difference. Result has 326 places, 934 transitions, 29039 flow [2022-11-25 17:29:36,709 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=25045, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=888, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=549, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=306, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=29039, PETRI_PLACES=326, PETRI_TRANSITIONS=934} [2022-11-25 17:29:36,709 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 255 predicate places. [2022-11-25 17:29:36,710 INFO L495 AbstractCegarLoop]: Abstraction has has 326 places, 934 transitions, 29039 flow [2022-11-25 17:29:36,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 146.2) internal successors, (1462), 10 states have internal predecessors, (1462), 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) [2022-11-25 17:29:36,710 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:29:36,710 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:29:36,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-25 17:29:36,711 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-25 17:29:36,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:29:36,711 INFO L85 PathProgramCache]: Analyzing trace with hash -382613248, now seen corresponding path program 11 times [2022-11-25 17:29:36,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:29:36,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135044428] [2022-11-25 17:29:36,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:29:36,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:29:36,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:37,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:29:37,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:29:37,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135044428] [2022-11-25 17:29:37,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135044428] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:29:37,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:29:37,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:29:37,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446973687] [2022-11-25 17:29:37,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:29:37,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 17:29:37,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:29:37,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 17:29:37,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:29:38,272 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 418 [2022-11-25 17:29:38,274 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 934 transitions, 29039 flow. Second operand has 10 states, 10 states have (on average 146.2) internal successors, (1462), 10 states have internal predecessors, (1462), 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) [2022-11-25 17:29:38,274 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:29:38,274 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 418 [2022-11-25 17:29:38,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:29:44,076 INFO L130 PetriNetUnfolder]: 3184/8436 cut-off events. [2022-11-25 17:29:44,076 INFO L131 PetriNetUnfolder]: For 276029/276241 co-relation queries the response was YES. [2022-11-25 17:29:44,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66184 conditions, 8436 events. 3184/8436 cut-off events. For 276029/276241 co-relation queries the response was YES. Maximal size of possible extension queue 362. Compared 80501 event pairs, 392 based on Foata normal form. 75/8143 useless extension candidates. Maximal degree in co-relation 66062. Up to 2391 conditions per place. [2022-11-25 17:29:44,217 INFO L137 encePairwiseOnDemand]: 388/418 looper letters, 505 selfloop transitions, 613 changer transitions 2/1154 dead transitions. [2022-11-25 17:29:44,217 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 339 places, 1154 transitions, 34636 flow [2022-11-25 17:29:44,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 17:29:44,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-25 17:29:44,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2282 transitions. [2022-11-25 17:29:44,222 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.38995215311004783 [2022-11-25 17:29:44,223 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2282 transitions. [2022-11-25 17:29:44,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2282 transitions. [2022-11-25 17:29:44,224 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:29:44,224 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2282 transitions. [2022-11-25 17:29:44,228 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 163.0) internal successors, (2282), 14 states have internal predecessors, (2282), 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) [2022-11-25 17:29:44,235 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 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) [2022-11-25 17:29:44,236 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 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) [2022-11-25 17:29:44,237 INFO L175 Difference]: Start difference. First operand has 326 places, 934 transitions, 29039 flow. Second operand 14 states and 2282 transitions. [2022-11-25 17:29:44,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 339 places, 1154 transitions, 34636 flow [2022-11-25 17:29:46,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 1154 transitions, 34485 flow, removed 67 selfloop flow, removed 1 redundant places. [2022-11-25 17:29:46,878 INFO L231 Difference]: Finished difference. Result has 348 places, 986 transitions, 33237 flow [2022-11-25 17:29:46,879 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=28912, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=934, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=561, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=335, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=33237, PETRI_PLACES=348, PETRI_TRANSITIONS=986} [2022-11-25 17:29:46,880 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 277 predicate places. [2022-11-25 17:29:46,880 INFO L495 AbstractCegarLoop]: Abstraction has has 348 places, 986 transitions, 33237 flow [2022-11-25 17:29:46,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 146.2) internal successors, (1462), 10 states have internal predecessors, (1462), 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) [2022-11-25 17:29:46,880 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:29:46,880 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:29:46,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-25 17:29:46,881 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-25 17:29:46,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:29:46,881 INFO L85 PathProgramCache]: Analyzing trace with hash -361800638, now seen corresponding path program 12 times [2022-11-25 17:29:46,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:29:46,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748387061] [2022-11-25 17:29:46,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:29:46,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:29:46,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:47,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:29:47,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:29:47,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748387061] [2022-11-25 17:29:47,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748387061] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:29:47,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:29:47,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:29:47,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380433060] [2022-11-25 17:29:47,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:29:47,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 17:29:47,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:29:47,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 17:29:47,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:29:48,305 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 418 [2022-11-25 17:29:48,306 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 986 transitions, 33237 flow. Second operand has 10 states, 10 states have (on average 146.2) internal successors, (1462), 10 states have internal predecessors, (1462), 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) [2022-11-25 17:29:48,306 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:29:48,306 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 418 [2022-11-25 17:29:48,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:29:54,990 INFO L130 PetriNetUnfolder]: 3388/9023 cut-off events. [2022-11-25 17:29:54,990 INFO L131 PetriNetUnfolder]: For 348769/348999 co-relation queries the response was YES. [2022-11-25 17:29:55,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74158 conditions, 9023 events. 3388/9023 cut-off events. For 348769/348999 co-relation queries the response was YES. Maximal size of possible extension queue 392. Compared 87545 event pairs, 393 based on Foata normal form. 66/8690 useless extension candidates. Maximal degree in co-relation 74026. Up to 2824 conditions per place. [2022-11-25 17:29:55,171 INFO L137 encePairwiseOnDemand]: 387/418 looper letters, 484 selfloop transitions, 717 changer transitions 2/1237 dead transitions. [2022-11-25 17:29:55,171 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 1237 transitions, 39618 flow [2022-11-25 17:29:55,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 17:29:55,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-25 17:29:55,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2314 transitions. [2022-11-25 17:29:55,176 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3954203691045796 [2022-11-25 17:29:55,177 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2314 transitions. [2022-11-25 17:29:55,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2314 transitions. [2022-11-25 17:29:55,178 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:29:55,178 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2314 transitions. [2022-11-25 17:29:55,182 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 165.28571428571428) internal successors, (2314), 14 states have internal predecessors, (2314), 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) [2022-11-25 17:29:55,187 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 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) [2022-11-25 17:29:55,188 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 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) [2022-11-25 17:29:55,189 INFO L175 Difference]: Start difference. First operand has 348 places, 986 transitions, 33237 flow. Second operand 14 states and 2314 transitions. [2022-11-25 17:29:55,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 1237 transitions, 39618 flow [2022-11-25 17:29:58,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 358 places, 1237 transitions, 39417 flow, removed 60 selfloop flow, removed 3 redundant places. [2022-11-25 17:29:58,428 INFO L231 Difference]: Finished difference. Result has 370 places, 1049 transitions, 38393 flow [2022-11-25 17:29:58,429 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=33060, PETRI_DIFFERENCE_MINUEND_PLACES=345, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=986, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=656, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=284, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=38393, PETRI_PLACES=370, PETRI_TRANSITIONS=1049} [2022-11-25 17:29:58,429 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 299 predicate places. [2022-11-25 17:29:58,429 INFO L495 AbstractCegarLoop]: Abstraction has has 370 places, 1049 transitions, 38393 flow [2022-11-25 17:29:58,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 146.2) internal successors, (1462), 10 states have internal predecessors, (1462), 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) [2022-11-25 17:29:58,429 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:29:58,429 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:29:58,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-25 17:29:58,430 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-25 17:29:58,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:29:58,430 INFO L85 PathProgramCache]: Analyzing trace with hash 54973104, now seen corresponding path program 13 times [2022-11-25 17:29:58,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:29:58,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365546369] [2022-11-25 17:29:58,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:29:58,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:29:58,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:58,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:29:58,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:29:58,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365546369] [2022-11-25 17:29:58,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365546369] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:29:58,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:29:58,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:29:58,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134850039] [2022-11-25 17:29:58,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:29:58,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 17:29:58,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:29:58,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 17:29:58,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:29:59,825 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 418 [2022-11-25 17:29:59,826 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 1049 transitions, 38393 flow. Second operand has 10 states, 10 states have (on average 146.2) internal successors, (1462), 10 states have internal predecessors, (1462), 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) [2022-11-25 17:29:59,826 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:29:59,826 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 418 [2022-11-25 17:29:59,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:30:07,285 INFO L130 PetriNetUnfolder]: 3540/9367 cut-off events. [2022-11-25 17:30:07,286 INFO L131 PetriNetUnfolder]: For 432316/432688 co-relation queries the response was YES. [2022-11-25 17:30:07,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81139 conditions, 9367 events. 3540/9367 cut-off events. For 432316/432688 co-relation queries the response was YES. Maximal size of possible extension queue 411. Compared 91821 event pairs, 483 based on Foata normal form. 163/9115 useless extension candidates. Maximal degree in co-relation 80996. Up to 2780 conditions per place. [2022-11-25 17:30:07,480 INFO L137 encePairwiseOnDemand]: 386/418 looper letters, 541 selfloop transitions, 719 changer transitions 2/1296 dead transitions. [2022-11-25 17:30:07,480 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 383 places, 1296 transitions, 44507 flow [2022-11-25 17:30:07,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 17:30:07,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-25 17:30:07,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2342 transitions. [2022-11-25 17:30:07,485 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.40020505809979495 [2022-11-25 17:30:07,486 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2342 transitions. [2022-11-25 17:30:07,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2342 transitions. [2022-11-25 17:30:07,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:30:07,487 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2342 transitions. [2022-11-25 17:30:07,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 167.28571428571428) internal successors, (2342), 14 states have internal predecessors, (2342), 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) [2022-11-25 17:30:07,496 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 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) [2022-11-25 17:30:07,497 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 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) [2022-11-25 17:30:07,498 INFO L175 Difference]: Start difference. First operand has 370 places, 1049 transitions, 38393 flow. Second operand 14 states and 2342 transitions. [2022-11-25 17:30:07,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 383 places, 1296 transitions, 44507 flow [2022-11-25 17:30:12,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 383 places, 1296 transitions, 44393 flow, removed 57 selfloop flow, removed 0 redundant places. [2022-11-25 17:30:12,331 INFO L231 Difference]: Finished difference. Result has 393 places, 1095 transitions, 43122 flow [2022-11-25 17:30:12,332 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=38299, PETRI_DIFFERENCE_MINUEND_PLACES=370, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1049, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=674, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=345, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=43122, PETRI_PLACES=393, PETRI_TRANSITIONS=1095} [2022-11-25 17:30:12,332 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 322 predicate places. [2022-11-25 17:30:12,332 INFO L495 AbstractCegarLoop]: Abstraction has has 393 places, 1095 transitions, 43122 flow [2022-11-25 17:30:12,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 146.2) internal successors, (1462), 10 states have internal predecessors, (1462), 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) [2022-11-25 17:30:12,333 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:30:12,333 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:30:12,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-25 17:30:12,334 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-25 17:30:12,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:30:12,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1393625828, now seen corresponding path program 1 times [2022-11-25 17:30:12,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:30:12,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215310597] [2022-11-25 17:30:12,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:30:12,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:30:12,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:30:12,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:30:12,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:30:12,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215310597] [2022-11-25 17:30:12,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215310597] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:30:12,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:30:12,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:30:12,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060193395] [2022-11-25 17:30:12,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:30:12,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:30:12,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:30:12,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:30:12,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:30:12,942 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 418 [2022-11-25 17:30:12,943 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 393 places, 1095 transitions, 43122 flow. Second operand has 6 states, 6 states have (on average 157.83333333333334) internal successors, (947), 6 states have internal predecessors, (947), 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) [2022-11-25 17:30:12,943 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:30:12,943 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 418 [2022-11-25 17:30:12,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:30:25,817 INFO L130 PetriNetUnfolder]: 7196/16620 cut-off events. [2022-11-25 17:30:25,817 INFO L131 PetriNetUnfolder]: For 872443/873304 co-relation queries the response was YES. [2022-11-25 17:30:26,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141741 conditions, 16620 events. 7196/16620 cut-off events. For 872443/873304 co-relation queries the response was YES. Maximal size of possible extension queue 620. Compared 159892 event pairs, 688 based on Foata normal form. 112/16324 useless extension candidates. Maximal degree in co-relation 141588. Up to 9580 conditions per place. [2022-11-25 17:30:26,234 INFO L137 encePairwiseOnDemand]: 396/418 looper letters, 1082 selfloop transitions, 739 changer transitions 4/2054 dead transitions. [2022-11-25 17:30:26,234 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 398 places, 2054 transitions, 87555 flow [2022-11-25 17:30:26,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:30:26,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 17:30:26,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1092 transitions. [2022-11-25 17:30:26,236 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4354066985645933 [2022-11-25 17:30:26,236 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1092 transitions. [2022-11-25 17:30:26,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1092 transitions. [2022-11-25 17:30:26,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:30:26,237 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1092 transitions. [2022-11-25 17:30:26,238 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 182.0) internal successors, (1092), 6 states have internal predecessors, (1092), 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) [2022-11-25 17:30:26,240 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 418.0) internal successors, (2926), 7 states have internal predecessors, (2926), 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) [2022-11-25 17:30:26,240 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 418.0) internal successors, (2926), 7 states have internal predecessors, (2926), 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) [2022-11-25 17:30:26,240 INFO L175 Difference]: Start difference. First operand has 393 places, 1095 transitions, 43122 flow. Second operand 6 states and 1092 transitions. [2022-11-25 17:30:26,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 398 places, 2054 transitions, 87555 flow [2022-11-25 17:30:36,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 2054 transitions, 87277 flow, removed 88 selfloop flow, removed 1 redundant places. [2022-11-25 17:30:36,462 INFO L231 Difference]: Finished difference. Result has 402 places, 1669 transitions, 71518 flow [2022-11-25 17:30:36,463 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=42960, PETRI_DIFFERENCE_MINUEND_PLACES=392, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1095, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=272, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=794, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=71518, PETRI_PLACES=402, PETRI_TRANSITIONS=1669} [2022-11-25 17:30:36,464 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 331 predicate places. [2022-11-25 17:30:36,464 INFO L495 AbstractCegarLoop]: Abstraction has has 402 places, 1669 transitions, 71518 flow [2022-11-25 17:30:36,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 157.83333333333334) internal successors, (947), 6 states have internal predecessors, (947), 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) [2022-11-25 17:30:36,464 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:30:36,465 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:30:36,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-25 17:30:36,465 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-25 17:30:36,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:30:36,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1925430566, now seen corresponding path program 1 times [2022-11-25 17:30:36,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:30:36,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470948131] [2022-11-25 17:30:36,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:30:36,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:30:36,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:30:36,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:30:36,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:30:36,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470948131] [2022-11-25 17:30:36,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470948131] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:30:36,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:30:36,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:30:36,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144868946] [2022-11-25 17:30:36,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:30:36,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:30:36,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:30:36,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:30:36,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:30:37,243 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 418 [2022-11-25 17:30:37,244 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 402 places, 1669 transitions, 71518 flow. Second operand has 6 states, 6 states have (on average 153.0) internal successors, (918), 6 states have internal predecessors, (918), 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) [2022-11-25 17:30:37,245 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:30:37,245 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 418 [2022-11-25 17:30:37,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand