./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-chromosome-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd67e23f-0892-42b2-be77-a8fcabd42d61/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd67e23f-0892-42b2-be77-a8fcabd42d61/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd67e23f-0892-42b2-be77-a8fcabd42d61/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd67e23f-0892-42b2-be77-a8fcabd42d61/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-chromosome-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd67e23f-0892-42b2-be77-a8fcabd42d61/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd67e23f-0892-42b2-be77-a8fcabd42d61/bin/uautomizer-Dbtcem3rbc --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 b68e155d55184c39a54e11a2c420443b840324481c8995060134516395f2d120 --- 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-5e519f3 [2022-11-02 20:47:51,737 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:47:51,740 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:47:51,780 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:47:51,781 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:47:51,782 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:47:51,783 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:47:51,785 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:47:51,787 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:47:51,788 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:47:51,789 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:47:51,790 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:47:51,791 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:47:51,792 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:47:51,793 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:47:51,795 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:47:51,796 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:47:51,797 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:47:51,799 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:47:51,801 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:47:51,802 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:47:51,804 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:47:51,805 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:47:51,806 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:47:51,810 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:47:51,811 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:47:51,811 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:47:51,812 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:47:51,813 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:47:51,814 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:47:51,814 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:47:51,815 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:47:51,816 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:47:51,818 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:47:51,819 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:47:51,819 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:47:51,820 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:47:51,821 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:47:51,821 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:47:51,822 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:47:51,823 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:47:51,826 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd67e23f-0892-42b2-be77-a8fcabd42d61/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 20:47:51,875 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:47:51,877 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:47:51,878 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:47:51,879 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:47:51,880 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:47:51,880 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:47:51,881 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:47:51,881 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:47:51,881 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:47:51,881 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:47:51,883 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:47:51,883 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:47:51,883 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:47:51,884 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:47:51,884 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:47:51,884 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:47:51,884 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:47:51,884 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:47:51,885 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 20:47:51,885 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:47:51,885 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:47:51,885 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:47:51,886 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:47:51,886 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:47:51,886 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:47:51,886 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:47:51,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:47:51,887 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:47:51,887 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:47:51,887 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:47:51,888 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:47:51,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:47:51,888 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:47:51,889 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:47:51,889 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:47:51,889 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd67e23f-0892-42b2-be77-a8fcabd42d61/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd67e23f-0892-42b2-be77-a8fcabd42d61/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b68e155d55184c39a54e11a2c420443b840324481c8995060134516395f2d120 [2022-11-02 20:47:52,177 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:47:52,209 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:47:52,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:47:52,215 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:47:52,215 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:47:52,217 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd67e23f-0892-42b2-be77-a8fcabd42d61/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/weaver/chl-chromosome-subst.wvr.c [2022-11-02 20:47:52,286 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd67e23f-0892-42b2-be77-a8fcabd42d61/bin/uautomizer-Dbtcem3rbc/data/19c3ccfd8/10e75fc47ddc4c8c9c4fb98f34630a64/FLAG232de6ed7 [2022-11-02 20:47:52,829 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:47:52,830 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd67e23f-0892-42b2-be77-a8fcabd42d61/sv-benchmarks/c/weaver/chl-chromosome-subst.wvr.c [2022-11-02 20:47:52,841 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd67e23f-0892-42b2-be77-a8fcabd42d61/bin/uautomizer-Dbtcem3rbc/data/19c3ccfd8/10e75fc47ddc4c8c9c4fb98f34630a64/FLAG232de6ed7 [2022-11-02 20:47:53,182 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd67e23f-0892-42b2-be77-a8fcabd42d61/bin/uautomizer-Dbtcem3rbc/data/19c3ccfd8/10e75fc47ddc4c8c9c4fb98f34630a64 [2022-11-02 20:47:53,185 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:47:53,186 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:47:53,188 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:47:53,188 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:47:53,191 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:47:53,192 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:47:53" (1/1) ... [2022-11-02 20:47:53,193 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43f0b2f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:47:53, skipping insertion in model container [2022-11-02 20:47:53,194 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:47:53" (1/1) ... [2022-11-02 20:47:53,201 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:47:53,219 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:47:53,448 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd67e23f-0892-42b2-be77-a8fcabd42d61/sv-benchmarks/c/weaver/chl-chromosome-subst.wvr.c[3097,3110] [2022-11-02 20:47:53,456 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:47:53,464 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:47:53,501 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd67e23f-0892-42b2-be77-a8fcabd42d61/sv-benchmarks/c/weaver/chl-chromosome-subst.wvr.c[3097,3110] [2022-11-02 20:47:53,506 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:47:53,521 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:47:53,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:47:53 WrapperNode [2022-11-02 20:47:53,521 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:47:53,522 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:47:53,523 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:47:53,523 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:47:53,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:47:53" (1/1) ... [2022-11-02 20:47:53,542 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:47:53" (1/1) ... [2022-11-02 20:47:53,593 INFO L138 Inliner]: procedures = 26, calls = 47, calls flagged for inlining = 17, calls inlined = 25, statements flattened = 463 [2022-11-02 20:47:53,597 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:47:53,598 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:47:53,598 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:47:53,598 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:47:53,605 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:47:53" (1/1) ... [2022-11-02 20:47:53,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:47:53" (1/1) ... [2022-11-02 20:47:53,614 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:47:53" (1/1) ... [2022-11-02 20:47:53,614 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:47:53" (1/1) ... [2022-11-02 20:47:53,633 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:47:53" (1/1) ... [2022-11-02 20:47:53,640 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:47:53" (1/1) ... [2022-11-02 20:47:53,642 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:47:53" (1/1) ... [2022-11-02 20:47:53,645 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:47:53" (1/1) ... [2022-11-02 20:47:53,649 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:47:53,650 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:47:53,650 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:47:53,650 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:47:53,651 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:47:53" (1/1) ... [2022-11-02 20:47:53,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:47:53,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd67e23f-0892-42b2-be77-a8fcabd42d61/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:47:53,718 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd67e23f-0892-42b2-be77-a8fcabd42d61/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:47:53,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd67e23f-0892-42b2-be77-a8fcabd42d61/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:47:53,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:47:53,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:47:53,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:47:53,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:47:53,779 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-02 20:47:53,780 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-02 20:47:53,781 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-02 20:47:53,781 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-02 20:47:53,781 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-02 20:47:53,781 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-02 20:47:53,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:47:53,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:47:53,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:47:53,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:47:53,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:47:53,783 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 20:47:53,963 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:47:53,973 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:47:54,921 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:47:54,936 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:47:54,936 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-02 20:47:54,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:47:54 BoogieIcfgContainer [2022-11-02 20:47:54,939 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:47:54,942 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:47:54,942 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:47:54,956 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:47:54,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:47:53" (1/3) ... [2022-11-02 20:47:54,957 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5789f1ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:47:54, skipping insertion in model container [2022-11-02 20:47:54,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:47:53" (2/3) ... [2022-11-02 20:47:54,958 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5789f1ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:47:54, skipping insertion in model container [2022-11-02 20:47:54,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:47:54" (3/3) ... [2022-11-02 20:47:54,959 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-chromosome-subst.wvr.c [2022-11-02 20:47:54,967 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:47:54,990 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:47:54,990 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 50 error locations. [2022-11-02 20:47:54,991 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:47:55,230 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-02 20:47:55,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 582 places, 605 transitions, 1234 flow [2022-11-02 20:47:55,672 INFO L130 PetriNetUnfolder]: 33/602 cut-off events. [2022-11-02 20:47:55,672 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-02 20:47:55,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 615 conditions, 602 events. 33/602 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1325 event pairs, 0 based on Foata normal form. 0/519 useless extension candidates. Maximal degree in co-relation 426. Up to 2 conditions per place. [2022-11-02 20:47:55,708 INFO L82 GeneralOperation]: Start removeDead. Operand has 582 places, 605 transitions, 1234 flow [2022-11-02 20:47:55,725 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 558 places, 579 transitions, 1176 flow [2022-11-02 20:47:55,745 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:47:55,757 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;@28f816f6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:47:55,758 INFO L358 AbstractCegarLoop]: Starting to check reachability of 86 error locations. [2022-11-02 20:47:55,768 INFO L130 PetriNetUnfolder]: 3/66 cut-off events. [2022-11-02 20:47:55,768 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:47:55,769 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:47:55,770 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:47:55,770 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2022-11-02 20:47:55,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:47:55,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1170469308, now seen corresponding path program 1 times [2022-11-02 20:47:55,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:47:55,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554219056] [2022-11-02 20:47:55,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:47:55,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:47:55,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:47:56,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:47:56,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:47:56,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554219056] [2022-11-02 20:47:56,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554219056] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:47:56,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:47:56,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:47:56,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968153221] [2022-11-02 20:47:56,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:47:56,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-02 20:47:56,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:47:56,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-02 20:47:56,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 20:47:56,158 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 575 out of 605 [2022-11-02 20:47:56,166 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 558 places, 579 transitions, 1176 flow. Second operand has 2 states, 2 states have (on average 575.5) internal successors, (1151), 2 states have internal predecessors, (1151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:47:56,167 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:47:56,167 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 575 of 605 [2022-11-02 20:47:56,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:47:56,388 INFO L130 PetriNetUnfolder]: 9/557 cut-off events. [2022-11-02 20:47:56,388 INFO L131 PetriNetUnfolder]: For 14/16 co-relation queries the response was YES. [2022-11-02 20:47:56,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 577 conditions, 557 events. 9/557 cut-off events. For 14/16 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1284 event pairs, 0 based on Foata normal form. 31/514 useless extension candidates. Maximal degree in co-relation 411. Up to 7 conditions per place. [2022-11-02 20:47:56,403 INFO L137 encePairwiseOnDemand]: 583/605 looper letters, 6 selfloop transitions, 0 changer transitions 7/557 dead transitions. [2022-11-02 20:47:56,404 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 559 places, 557 transitions, 1144 flow [2022-11-02 20:47:56,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 20:47:56,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-02 20:47:56,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1178 transitions. [2022-11-02 20:47:56,434 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9735537190082645 [2022-11-02 20:47:56,435 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1178 transitions. [2022-11-02 20:47:56,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1178 transitions. [2022-11-02 20:47:56,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:47:56,443 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1178 transitions. [2022-11-02 20:47:56,456 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 589.0) internal successors, (1178), 2 states have internal predecessors, (1178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:47:56,467 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 605.0) internal successors, (1815), 3 states have internal predecessors, (1815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:47:56,468 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 605.0) internal successors, (1815), 3 states have internal predecessors, (1815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:47:56,469 INFO L175 Difference]: Start difference. First operand has 558 places, 579 transitions, 1176 flow. Second operand 2 states and 1178 transitions. [2022-11-02 20:47:56,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 559 places, 557 transitions, 1144 flow [2022-11-02 20:47:56,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 553 places, 557 transitions, 1132 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-02 20:47:56,509 INFO L231 Difference]: Finished difference. Result has 553 places, 550 transitions, 1106 flow [2022-11-02 20:47:56,511 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=1120, PETRI_DIFFERENCE_MINUEND_PLACES=552, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=557, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=557, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=1106, PETRI_PLACES=553, PETRI_TRANSITIONS=550} [2022-11-02 20:47:56,515 INFO L287 CegarLoopForPetriNet]: 558 programPoint places, -5 predicate places. [2022-11-02 20:47:56,515 INFO L495 AbstractCegarLoop]: Abstraction has has 553 places, 550 transitions, 1106 flow [2022-11-02 20:47:56,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 575.5) internal successors, (1151), 2 states have internal predecessors, (1151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:47:56,516 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:47:56,517 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:47:56,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:47:56,518 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2022-11-02 20:47:56,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:47:56,519 INFO L85 PathProgramCache]: Analyzing trace with hash 572341027, now seen corresponding path program 1 times [2022-11-02 20:47:56,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:47:56,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190038123] [2022-11-02 20:47:56,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:47:56,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:47:56,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:47:56,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:47:56,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:47:56,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190038123] [2022-11-02 20:47:56,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190038123] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:47:56,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:47:56,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:47:56,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570957727] [2022-11-02 20:47:56,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:47:56,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:47:56,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:47:56,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:47:56,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:47:56,667 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 563 out of 605 [2022-11-02 20:47:56,670 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 553 places, 550 transitions, 1106 flow. Second operand has 3 states, 3 states have (on average 564.3333333333334) internal successors, (1693), 3 states have internal predecessors, (1693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:47:56,670 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:47:56,670 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 563 of 605 [2022-11-02 20:47:56,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:47:57,350 INFO L130 PetriNetUnfolder]: 87/1896 cut-off events. [2022-11-02 20:47:57,351 INFO L131 PetriNetUnfolder]: For 11/16 co-relation queries the response was YES. [2022-11-02 20:47:57,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2026 conditions, 1896 events. 87/1896 cut-off events. For 11/16 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 12349 event pairs, 39 based on Foata normal form. 0/1608 useless extension candidates. Maximal degree in co-relation 2023. Up to 105 conditions per place. [2022-11-02 20:47:57,390 INFO L137 encePairwiseOnDemand]: 602/605 looper letters, 15 selfloop transitions, 2 changer transitions 0/549 dead transitions. [2022-11-02 20:47:57,391 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 547 places, 549 transitions, 1138 flow [2022-11-02 20:47:57,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:47:57,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:47:57,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1707 transitions. [2022-11-02 20:47:57,396 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9404958677685951 [2022-11-02 20:47:57,396 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1707 transitions. [2022-11-02 20:47:57,396 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1707 transitions. [2022-11-02 20:47:57,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:47:57,398 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1707 transitions. [2022-11-02 20:47:57,402 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 569.0) internal successors, (1707), 3 states have internal predecessors, (1707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:47:57,407 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:47:57,408 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:47:57,408 INFO L175 Difference]: Start difference. First operand has 553 places, 550 transitions, 1106 flow. Second operand 3 states and 1707 transitions. [2022-11-02 20:47:57,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 547 places, 549 transitions, 1138 flow [2022-11-02 20:47:57,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 547 places, 549 transitions, 1138 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:47:57,420 INFO L231 Difference]: Finished difference. Result has 547 places, 549 transitions, 1108 flow [2022-11-02 20:47:57,421 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=1104, PETRI_DIFFERENCE_MINUEND_PLACES=545, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=549, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=547, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1108, PETRI_PLACES=547, PETRI_TRANSITIONS=549} [2022-11-02 20:47:57,422 INFO L287 CegarLoopForPetriNet]: 558 programPoint places, -11 predicate places. [2022-11-02 20:47:57,422 INFO L495 AbstractCegarLoop]: Abstraction has has 547 places, 549 transitions, 1108 flow [2022-11-02 20:47:57,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 564.3333333333334) internal successors, (1693), 3 states have internal predecessors, (1693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:47:57,424 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:47:57,425 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:47:57,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:47:57,425 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2022-11-02 20:47:57,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:47:57,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1184121484, now seen corresponding path program 1 times [2022-11-02 20:47:57,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:47:57,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753097001] [2022-11-02 20:47:57,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:47:57,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:47:57,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:47:58,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:47:58,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:47:58,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753097001] [2022-11-02 20:47:58,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753097001] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:47:58,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:47:58,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:47:58,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622144854] [2022-11-02 20:47:58,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:47:58,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:47:58,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:47:58,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:47:58,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:47:58,250 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 470 out of 605 [2022-11-02 20:47:58,255 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 547 places, 549 transitions, 1108 flow. Second operand has 6 states, 6 states have (on average 471.8333333333333) internal successors, (2831), 6 states have internal predecessors, (2831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:47:58,255 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:47:58,255 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 470 of 605 [2022-11-02 20:47:58,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:48:40,550 INFO L130 PetriNetUnfolder]: 49022/197659 cut-off events. [2022-11-02 20:48:40,550 INFO L131 PetriNetUnfolder]: For 349/614 co-relation queries the response was YES. [2022-11-02 20:48:41,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 261657 conditions, 197659 events. 49022/197659 cut-off events. For 349/614 co-relation queries the response was YES. Maximal size of possible extension queue 3431. Compared 3236995 event pairs, 42984 based on Foata normal form. 0/164463 useless extension candidates. Maximal degree in co-relation 261653. Up to 63795 conditions per place. [2022-11-02 20:48:42,973 INFO L137 encePairwiseOnDemand]: 587/605 looper letters, 93 selfloop transitions, 15 changer transitions 0/546 dead transitions. [2022-11-02 20:48:42,974 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 549 places, 546 transitions, 1318 flow [2022-11-02 20:48:42,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:48:42,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:48:42,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2931 transitions. [2022-11-02 20:48:42,987 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8074380165289257 [2022-11-02 20:48:42,987 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2931 transitions. [2022-11-02 20:48:42,987 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2931 transitions. [2022-11-02 20:48:42,989 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:48:42,990 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2931 transitions. [2022-11-02 20:48:42,997 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 488.5) internal successors, (2931), 6 states have internal predecessors, (2931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:43,005 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 605.0) internal successors, (4235), 7 states have internal predecessors, (4235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:43,008 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 605.0) internal successors, (4235), 7 states have internal predecessors, (4235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:43,008 INFO L175 Difference]: Start difference. First operand has 547 places, 549 transitions, 1108 flow. Second operand 6 states and 2931 transitions. [2022-11-02 20:48:43,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 549 places, 546 transitions, 1318 flow [2022-11-02 20:48:43,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 547 places, 546 transitions, 1314 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:48:43,020 INFO L231 Difference]: Finished difference. Result has 547 places, 546 transitions, 1128 flow [2022-11-02 20:48:43,021 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=1098, PETRI_DIFFERENCE_MINUEND_PLACES=542, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=546, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=531, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1128, PETRI_PLACES=547, PETRI_TRANSITIONS=546} [2022-11-02 20:48:43,024 INFO L287 CegarLoopForPetriNet]: 558 programPoint places, -11 predicate places. [2022-11-02 20:48:43,024 INFO L495 AbstractCegarLoop]: Abstraction has has 547 places, 546 transitions, 1128 flow [2022-11-02 20:48:43,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 471.8333333333333) internal successors, (2831), 6 states have internal predecessors, (2831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:43,026 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:48:43,026 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:48:43,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:48:43,027 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2022-11-02 20:48:43,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:48:43,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1795305295, now seen corresponding path program 1 times [2022-11-02 20:48:43,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:48:43,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644649158] [2022-11-02 20:48:43,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:48:43,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:48:43,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:48:43,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:48:43,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:48:43,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644649158] [2022-11-02 20:48:43,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644649158] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:48:43,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:48:43,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:48:43,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701632963] [2022-11-02 20:48:43,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:48:43,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:48:43,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:48:43,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:48:43,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:48:43,096 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 563 out of 605 [2022-11-02 20:48:43,098 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 547 places, 546 transitions, 1128 flow. Second operand has 3 states, 3 states have (on average 564.3333333333334) internal successors, (1693), 3 states have internal predecessors, (1693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:43,098 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:48:43,098 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 563 of 605 [2022-11-02 20:48:43,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:48:43,621 INFO L130 PetriNetUnfolder]: 55/1351 cut-off events. [2022-11-02 20:48:43,621 INFO L131 PetriNetUnfolder]: For 14/16 co-relation queries the response was YES. [2022-11-02 20:48:43,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1452 conditions, 1351 events. 55/1351 cut-off events. For 14/16 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 6798 event pairs, 21 based on Foata normal form. 0/1156 useless extension candidates. Maximal degree in co-relation 1448. Up to 72 conditions per place. [2022-11-02 20:48:43,640 INFO L137 encePairwiseOnDemand]: 602/605 looper letters, 15 selfloop transitions, 2 changer transitions 0/545 dead transitions. [2022-11-02 20:48:43,640 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 548 places, 545 transitions, 1160 flow [2022-11-02 20:48:43,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:48:43,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:48:43,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1707 transitions. [2022-11-02 20:48:43,644 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9404958677685951 [2022-11-02 20:48:43,645 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1707 transitions. [2022-11-02 20:48:43,645 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1707 transitions. [2022-11-02 20:48:43,646 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:48:43,647 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1707 transitions. [2022-11-02 20:48:43,651 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 569.0) internal successors, (1707), 3 states have internal predecessors, (1707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:43,656 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:43,657 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:43,658 INFO L175 Difference]: Start difference. First operand has 547 places, 546 transitions, 1128 flow. Second operand 3 states and 1707 transitions. [2022-11-02 20:48:43,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 548 places, 545 transitions, 1160 flow [2022-11-02 20:48:43,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 543 places, 545 transitions, 1130 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:48:43,668 INFO L231 Difference]: Finished difference. Result has 543 places, 545 transitions, 1100 flow [2022-11-02 20:48:43,669 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=1096, PETRI_DIFFERENCE_MINUEND_PLACES=541, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=545, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=543, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1100, PETRI_PLACES=543, PETRI_TRANSITIONS=545} [2022-11-02 20:48:43,670 INFO L287 CegarLoopForPetriNet]: 558 programPoint places, -15 predicate places. [2022-11-02 20:48:43,670 INFO L495 AbstractCegarLoop]: Abstraction has has 543 places, 545 transitions, 1100 flow [2022-11-02 20:48:43,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 564.3333333333334) internal successors, (1693), 3 states have internal predecessors, (1693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:43,671 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:48:43,671 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:48:43,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:48:43,672 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2022-11-02 20:48:43,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:48:43,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1788334183, now seen corresponding path program 1 times [2022-11-02 20:48:43,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:48:43,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93059796] [2022-11-02 20:48:43,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:48:43,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:48:43,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:48:43,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:48:43,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:48:43,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93059796] [2022-11-02 20:48:43,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93059796] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:48:43,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:48:43,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:48:43,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337994706] [2022-11-02 20:48:43,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:48:43,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:48:43,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:48:43,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:48:43,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:48:43,741 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 563 out of 605 [2022-11-02 20:48:43,743 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 543 places, 545 transitions, 1100 flow. Second operand has 3 states, 3 states have (on average 564.3333333333334) internal successors, (1693), 3 states have internal predecessors, (1693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:43,743 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:48:43,743 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 563 of 605 [2022-11-02 20:48:43,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:48:44,090 INFO L130 PetriNetUnfolder]: 81/1595 cut-off events. [2022-11-02 20:48:44,090 INFO L131 PetriNetUnfolder]: For 26/28 co-relation queries the response was YES. [2022-11-02 20:48:44,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1713 conditions, 1595 events. 81/1595 cut-off events. For 26/28 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 8846 event pairs, 39 based on Foata normal form. 0/1364 useless extension candidates. Maximal degree in co-relation 1709. Up to 105 conditions per place. [2022-11-02 20:48:44,115 INFO L137 encePairwiseOnDemand]: 602/605 looper letters, 15 selfloop transitions, 2 changer transitions 0/544 dead transitions. [2022-11-02 20:48:44,116 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 544 places, 544 transitions, 1132 flow [2022-11-02 20:48:44,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:48:44,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:48:44,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1707 transitions. [2022-11-02 20:48:44,120 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9404958677685951 [2022-11-02 20:48:44,120 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1707 transitions. [2022-11-02 20:48:44,120 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1707 transitions. [2022-11-02 20:48:44,121 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:48:44,121 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1707 transitions. [2022-11-02 20:48:44,125 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 569.0) internal successors, (1707), 3 states have internal predecessors, (1707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:44,129 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:44,130 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:44,130 INFO L175 Difference]: Start difference. First operand has 543 places, 545 transitions, 1100 flow. Second operand 3 states and 1707 transitions. [2022-11-02 20:48:44,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 544 places, 544 transitions, 1132 flow [2022-11-02 20:48:44,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 542 places, 544 transitions, 1128 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:48:44,140 INFO L231 Difference]: Finished difference. Result has 542 places, 544 transitions, 1098 flow [2022-11-02 20:48:44,141 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=1094, PETRI_DIFFERENCE_MINUEND_PLACES=540, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=544, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=542, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1098, PETRI_PLACES=542, PETRI_TRANSITIONS=544} [2022-11-02 20:48:44,142 INFO L287 CegarLoopForPetriNet]: 558 programPoint places, -16 predicate places. [2022-11-02 20:48:44,142 INFO L495 AbstractCegarLoop]: Abstraction has has 542 places, 544 transitions, 1098 flow [2022-11-02 20:48:44,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 564.3333333333334) internal successors, (1693), 3 states have internal predecessors, (1693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:44,144 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:48:44,144 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:48:44,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:48:44,144 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2022-11-02 20:48:44,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:48:44,145 INFO L85 PathProgramCache]: Analyzing trace with hash -2038572945, now seen corresponding path program 1 times [2022-11-02 20:48:44,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:48:44,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952903070] [2022-11-02 20:48:44,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:48:44,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:48:44,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:48:44,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:48:44,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:48:44,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952903070] [2022-11-02 20:48:44,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952903070] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:48:44,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:48:44,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:48:44,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094864238] [2022-11-02 20:48:44,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:48:44,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:48:44,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:48:44,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:48:44,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:48:44,223 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 563 out of 605 [2022-11-02 20:48:44,225 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 542 places, 544 transitions, 1098 flow. Second operand has 3 states, 3 states have (on average 564.3333333333334) internal successors, (1693), 3 states have internal predecessors, (1693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:44,225 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:48:44,225 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 563 of 605 [2022-11-02 20:48:44,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:48:44,599 INFO L130 PetriNetUnfolder]: 68/1572 cut-off events. [2022-11-02 20:48:44,599 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-02 20:48:44,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1685 conditions, 1572 events. 68/1572 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 9502 event pairs, 39 based on Foata normal form. 0/1325 useless extension candidates. Maximal degree in co-relation 1681. Up to 85 conditions per place. [2022-11-02 20:48:44,626 INFO L137 encePairwiseOnDemand]: 602/605 looper letters, 15 selfloop transitions, 2 changer transitions 0/543 dead transitions. [2022-11-02 20:48:44,626 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 543 places, 543 transitions, 1130 flow [2022-11-02 20:48:44,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:48:44,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:48:44,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1707 transitions. [2022-11-02 20:48:44,631 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9404958677685951 [2022-11-02 20:48:44,631 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1707 transitions. [2022-11-02 20:48:44,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1707 transitions. [2022-11-02 20:48:44,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:48:44,632 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1707 transitions. [2022-11-02 20:48:44,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 569.0) internal successors, (1707), 3 states have internal predecessors, (1707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:44,641 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:44,642 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:44,642 INFO L175 Difference]: Start difference. First operand has 542 places, 544 transitions, 1098 flow. Second operand 3 states and 1707 transitions. [2022-11-02 20:48:44,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 543 places, 543 transitions, 1130 flow [2022-11-02 20:48:44,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 541 places, 543 transitions, 1126 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:48:44,653 INFO L231 Difference]: Finished difference. Result has 541 places, 543 transitions, 1096 flow [2022-11-02 20:48:44,654 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=1092, PETRI_DIFFERENCE_MINUEND_PLACES=539, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=543, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=541, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1096, PETRI_PLACES=541, PETRI_TRANSITIONS=543} [2022-11-02 20:48:44,655 INFO L287 CegarLoopForPetriNet]: 558 programPoint places, -17 predicate places. [2022-11-02 20:48:44,655 INFO L495 AbstractCegarLoop]: Abstraction has has 541 places, 543 transitions, 1096 flow [2022-11-02 20:48:44,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 564.3333333333334) internal successors, (1693), 3 states have internal predecessors, (1693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:44,656 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:48:44,656 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:48:44,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:48:44,657 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2022-11-02 20:48:44,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:48:44,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1147075478, now seen corresponding path program 1 times [2022-11-02 20:48:44,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:48:44,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924510956] [2022-11-02 20:48:44,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:48:44,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:48:44,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:48:44,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:48:44,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:48:44,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924510956] [2022-11-02 20:48:44,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924510956] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:48:44,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:48:44,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:48:44,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890861893] [2022-11-02 20:48:44,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:48:44,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:48:44,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:48:44,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:48:44,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:48:44,711 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 563 out of 605 [2022-11-02 20:48:44,713 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 541 places, 543 transitions, 1096 flow. Second operand has 3 states, 3 states have (on average 564.3333333333334) internal successors, (1693), 3 states have internal predecessors, (1693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:44,713 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:48:44,713 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 563 of 605 [2022-11-02 20:48:44,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:48:45,005 INFO L130 PetriNetUnfolder]: 46/1349 cut-off events. [2022-11-02 20:48:45,005 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-11-02 20:48:45,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1423 conditions, 1349 events. 46/1349 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 7040 event pairs, 21 based on Foata normal form. 0/1153 useless extension candidates. Maximal degree in co-relation 1419. Up to 58 conditions per place. [2022-11-02 20:48:45,034 INFO L137 encePairwiseOnDemand]: 602/605 looper letters, 15 selfloop transitions, 2 changer transitions 0/542 dead transitions. [2022-11-02 20:48:45,034 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 542 places, 542 transitions, 1128 flow [2022-11-02 20:48:45,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:48:45,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:48:45,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1707 transitions. [2022-11-02 20:48:45,038 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9404958677685951 [2022-11-02 20:48:45,039 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1707 transitions. [2022-11-02 20:48:45,039 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1707 transitions. [2022-11-02 20:48:45,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:48:45,040 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1707 transitions. [2022-11-02 20:48:45,051 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 569.0) internal successors, (1707), 3 states have internal predecessors, (1707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:45,055 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:45,056 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:45,056 INFO L175 Difference]: Start difference. First operand has 541 places, 543 transitions, 1096 flow. Second operand 3 states and 1707 transitions. [2022-11-02 20:48:45,056 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 542 places, 542 transitions, 1128 flow [2022-11-02 20:48:45,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 540 places, 542 transitions, 1124 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:48:45,066 INFO L231 Difference]: Finished difference. Result has 540 places, 542 transitions, 1094 flow [2022-11-02 20:48:45,067 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=1090, PETRI_DIFFERENCE_MINUEND_PLACES=538, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=542, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=540, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1094, PETRI_PLACES=540, PETRI_TRANSITIONS=542} [2022-11-02 20:48:45,068 INFO L287 CegarLoopForPetriNet]: 558 programPoint places, -18 predicate places. [2022-11-02 20:48:45,068 INFO L495 AbstractCegarLoop]: Abstraction has has 540 places, 542 transitions, 1094 flow [2022-11-02 20:48:45,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 564.3333333333334) internal successors, (1693), 3 states have internal predecessors, (1693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:45,069 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:48:45,070 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:48:45,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:48:45,070 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2022-11-02 20:48:45,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:48:45,071 INFO L85 PathProgramCache]: Analyzing trace with hash -2039778678, now seen corresponding path program 1 times [2022-11-02 20:48:45,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:48:45,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116009887] [2022-11-02 20:48:45,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:48:45,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:48:45,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:48:45,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:48:45,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:48:45,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116009887] [2022-11-02 20:48:45,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116009887] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:48:45,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:48:45,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:48:45,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122749673] [2022-11-02 20:48:45,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:48:45,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:48:45,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:48:45,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:48:45,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:48:45,135 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 563 out of 605 [2022-11-02 20:48:45,137 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 540 places, 542 transitions, 1094 flow. Second operand has 3 states, 3 states have (on average 564.3333333333334) internal successors, (1693), 3 states have internal predecessors, (1693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:45,137 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:48:45,137 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 563 of 605 [2022-11-02 20:48:45,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:48:45,624 INFO L130 PetriNetUnfolder]: 70/1583 cut-off events. [2022-11-02 20:48:45,624 INFO L131 PetriNetUnfolder]: For 21/29 co-relation queries the response was YES. [2022-11-02 20:48:45,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1681 conditions, 1583 events. 70/1583 cut-off events. For 21/29 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 9331 event pairs, 39 based on Foata normal form. 0/1351 useless extension candidates. Maximal degree in co-relation 1677. Up to 85 conditions per place. [2022-11-02 20:48:45,643 INFO L137 encePairwiseOnDemand]: 602/605 looper letters, 15 selfloop transitions, 2 changer transitions 0/541 dead transitions. [2022-11-02 20:48:45,643 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 541 places, 541 transitions, 1126 flow [2022-11-02 20:48:45,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:48:45,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:48:45,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1707 transitions. [2022-11-02 20:48:45,648 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9404958677685951 [2022-11-02 20:48:45,648 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1707 transitions. [2022-11-02 20:48:45,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1707 transitions. [2022-11-02 20:48:45,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:48:45,653 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1707 transitions. [2022-11-02 20:48:45,658 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 569.0) internal successors, (1707), 3 states have internal predecessors, (1707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:45,662 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:45,663 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:45,663 INFO L175 Difference]: Start difference. First operand has 540 places, 542 transitions, 1094 flow. Second operand 3 states and 1707 transitions. [2022-11-02 20:48:45,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 541 places, 541 transitions, 1126 flow [2022-11-02 20:48:45,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 539 places, 541 transitions, 1122 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:48:45,677 INFO L231 Difference]: Finished difference. Result has 539 places, 541 transitions, 1092 flow [2022-11-02 20:48:45,678 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=1088, PETRI_DIFFERENCE_MINUEND_PLACES=537, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=541, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=539, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1092, PETRI_PLACES=539, PETRI_TRANSITIONS=541} [2022-11-02 20:48:45,682 INFO L287 CegarLoopForPetriNet]: 558 programPoint places, -19 predicate places. [2022-11-02 20:48:45,682 INFO L495 AbstractCegarLoop]: Abstraction has has 539 places, 541 transitions, 1092 flow [2022-11-02 20:48:45,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 564.3333333333334) internal successors, (1693), 3 states have internal predecessors, (1693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:45,683 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:48:45,684 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:48:45,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 20:48:45,684 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2022-11-02 20:48:45,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:48:45,685 INFO L85 PathProgramCache]: Analyzing trace with hash 204753064, now seen corresponding path program 1 times [2022-11-02 20:48:45,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:48:45,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908064311] [2022-11-02 20:48:45,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:48:45,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:48:45,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:48:45,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:48:45,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:48:45,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908064311] [2022-11-02 20:48:45,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908064311] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:48:45,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:48:45,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:48:45,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615235136] [2022-11-02 20:48:45,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:48:45,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:48:45,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:48:45,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:48:45,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:48:45,778 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 566 out of 605 [2022-11-02 20:48:45,780 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 539 places, 541 transitions, 1092 flow. Second operand has 3 states, 3 states have (on average 567.6666666666666) internal successors, (1703), 3 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:45,781 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:48:45,781 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 566 of 605 [2022-11-02 20:48:45,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:48:46,216 INFO L130 PetriNetUnfolder]: 49/1564 cut-off events. [2022-11-02 20:48:46,217 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-02 20:48:46,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1631 conditions, 1564 events. 49/1564 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 9555 event pairs, 13 based on Foata normal form. 0/1345 useless extension candidates. Maximal degree in co-relation 1627. Up to 43 conditions per place. [2022-11-02 20:48:46,250 INFO L137 encePairwiseOnDemand]: 601/605 looper letters, 14 selfloop transitions, 2 changer transitions 0/543 dead transitions. [2022-11-02 20:48:46,250 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 539 places, 543 transitions, 1130 flow [2022-11-02 20:48:46,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:48:46,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:48:46,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1716 transitions. [2022-11-02 20:48:46,255 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9454545454545454 [2022-11-02 20:48:46,255 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1716 transitions. [2022-11-02 20:48:46,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1716 transitions. [2022-11-02 20:48:46,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:48:46,257 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1716 transitions. [2022-11-02 20:48:46,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 572.0) internal successors, (1716), 3 states have internal predecessors, (1716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:46,265 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:46,265 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:46,266 INFO L175 Difference]: Start difference. First operand has 539 places, 541 transitions, 1092 flow. Second operand 3 states and 1716 transitions. [2022-11-02 20:48:46,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 539 places, 543 transitions, 1130 flow [2022-11-02 20:48:46,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 537 places, 543 transitions, 1126 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:48:46,279 INFO L231 Difference]: Finished difference. Result has 538 places, 541 transitions, 1098 flow [2022-11-02 20:48:46,280 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=1084, PETRI_DIFFERENCE_MINUEND_PLACES=535, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=539, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=537, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1098, PETRI_PLACES=538, PETRI_TRANSITIONS=541} [2022-11-02 20:48:46,281 INFO L287 CegarLoopForPetriNet]: 558 programPoint places, -20 predicate places. [2022-11-02 20:48:46,282 INFO L495 AbstractCegarLoop]: Abstraction has has 538 places, 541 transitions, 1098 flow [2022-11-02 20:48:46,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 567.6666666666666) internal successors, (1703), 3 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:46,283 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:48:46,283 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:48:46,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 20:48:46,283 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2022-11-02 20:48:46,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:48:46,284 INFO L85 PathProgramCache]: Analyzing trace with hash -591521714, now seen corresponding path program 1 times [2022-11-02 20:48:46,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:48:46,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857598289] [2022-11-02 20:48:46,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:48:46,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:48:46,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:48:46,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:48:46,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:48:46,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857598289] [2022-11-02 20:48:46,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857598289] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:48:46,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:48:46,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:48:46,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870197810] [2022-11-02 20:48:46,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:48:46,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:48:46,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:48:46,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:48:46,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:48:46,365 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 566 out of 605 [2022-11-02 20:48:46,367 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 538 places, 541 transitions, 1098 flow. Second operand has 3 states, 3 states have (on average 567.6666666666666) internal successors, (1703), 3 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:46,368 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:48:46,368 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 566 of 605 [2022-11-02 20:48:46,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:48:46,719 INFO L130 PetriNetUnfolder]: 36/1216 cut-off events. [2022-11-02 20:48:46,719 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-02 20:48:46,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1269 conditions, 1216 events. 36/1216 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 5813 event pairs, 6 based on Foata normal form. 0/1056 useless extension candidates. Maximal degree in co-relation 1265. Up to 31 conditions per place. [2022-11-02 20:48:46,749 INFO L137 encePairwiseOnDemand]: 601/605 looper letters, 14 selfloop transitions, 2 changer transitions 0/543 dead transitions. [2022-11-02 20:48:46,749 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 538 places, 543 transitions, 1136 flow [2022-11-02 20:48:46,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:48:46,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:48:46,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1716 transitions. [2022-11-02 20:48:46,755 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9454545454545454 [2022-11-02 20:48:46,755 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1716 transitions. [2022-11-02 20:48:46,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1716 transitions. [2022-11-02 20:48:46,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:48:46,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1716 transitions. [2022-11-02 20:48:46,760 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 572.0) internal successors, (1716), 3 states have internal predecessors, (1716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:46,764 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:46,765 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:46,765 INFO L175 Difference]: Start difference. First operand has 538 places, 541 transitions, 1098 flow. Second operand 3 states and 1716 transitions. [2022-11-02 20:48:46,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 538 places, 543 transitions, 1136 flow [2022-11-02 20:48:46,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 538 places, 543 transitions, 1136 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:48:46,777 INFO L231 Difference]: Finished difference. Result has 539 places, 541 transitions, 1108 flow [2022-11-02 20:48:46,779 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=1094, PETRI_DIFFERENCE_MINUEND_PLACES=536, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=539, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=537, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1108, PETRI_PLACES=539, PETRI_TRANSITIONS=541} [2022-11-02 20:48:46,780 INFO L287 CegarLoopForPetriNet]: 558 programPoint places, -19 predicate places. [2022-11-02 20:48:46,780 INFO L495 AbstractCegarLoop]: Abstraction has has 539 places, 541 transitions, 1108 flow [2022-11-02 20:48:46,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 567.6666666666666) internal successors, (1703), 3 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:46,781 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:48:46,782 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:48:46,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 20:48:46,782 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2022-11-02 20:48:46,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:48:46,783 INFO L85 PathProgramCache]: Analyzing trace with hash 850800039, now seen corresponding path program 1 times [2022-11-02 20:48:46,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:48:46,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373405135] [2022-11-02 20:48:46,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:48:46,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:48:46,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:48:46,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:48:46,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:48:46,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373405135] [2022-11-02 20:48:46,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373405135] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:48:46,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:48:46,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:48:46,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760020871] [2022-11-02 20:48:46,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:48:46,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:48:46,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:48:46,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:48:46,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:48:46,877 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 555 out of 605 [2022-11-02 20:48:46,879 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 539 places, 541 transitions, 1108 flow. Second operand has 3 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 3 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:46,879 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:48:46,879 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 555 of 605 [2022-11-02 20:48:46,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand