./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/test-easy10.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d612a9-950a-4bb2-8fb1-e68ef321e51a/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d612a9-950a-4bb2-8fb1-e68ef321e51a/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d612a9-950a-4bb2-8fb1-e68ef321e51a/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d612a9-950a-4bb2-8fb1-e68ef321e51a/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/test-easy10.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d612a9-950a-4bb2-8fb1-e68ef321e51a/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d612a9-950a-4bb2-8fb1-e68ef321e51a/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5b38e7cb0150abfd3f300ad6ccdd66bb35d80de0668e553c35b4b9d13b84c85b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 18:49:43,459 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:49:43,480 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:49:43,524 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:49:43,525 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:49:43,526 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:49:43,528 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:49:43,530 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:49:43,533 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:49:43,534 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:49:43,535 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:49:43,537 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:49:43,538 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:49:43,540 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:49:43,542 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:49:43,543 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:49:43,545 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:49:43,546 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:49:43,549 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:49:43,551 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:49:43,554 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:49:43,556 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:49:43,557 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:49:43,559 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:49:43,563 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:49:43,564 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:49:43,565 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:49:43,566 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:49:43,567 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:49:43,568 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:49:43,569 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:49:43,570 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:49:43,571 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:49:43,573 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:49:43,574 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:49:43,575 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:49:43,576 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:49:43,576 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:49:43,577 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:49:43,578 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:49:43,580 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:49:43,581 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d612a9-950a-4bb2-8fb1-e68ef321e51a/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 18:49:43,610 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:49:43,611 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:49:43,612 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:49:43,612 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:49:43,613 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:49:43,613 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:49:43,614 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:49:43,615 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:49:43,615 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:49:43,615 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:49:43,616 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 18:49:43,616 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 18:49:43,617 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:49:43,617 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 18:49:43,617 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:49:43,618 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:49:43,618 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:49:43,619 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:49:43,619 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 18:49:43,619 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 18:49:43,620 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:49:43,620 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:49:43,620 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:49:43,621 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:49:43,621 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:49:43,622 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:49:43,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:49:43,623 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:49:43,623 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:49:43,623 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:49:43,624 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:49:43,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 18:49:43,625 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:49:43,625 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:49:43,625 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:49:43,626 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_83d612a9-950a-4bb2-8fb1-e68ef321e51a/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d612a9-950a-4bb2-8fb1-e68ef321e51a/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b38e7cb0150abfd3f300ad6ccdd66bb35d80de0668e553c35b4b9d13b84c85b [2022-11-18 18:49:44,002 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:49:44,030 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:49:44,033 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:49:44,035 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:49:44,036 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:49:44,038 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d612a9-950a-4bb2-8fb1-e68ef321e51a/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/test-easy10.wvr.c [2022-11-18 18:49:44,130 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d612a9-950a-4bb2-8fb1-e68ef321e51a/bin/uautomizer-TMbwUNV5ro/data/3c1377e28/0fedb35a4fd04ad3ab8b9b37cf54a2a3/FLAG301a0f9e0 [2022-11-18 18:49:44,692 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:49:44,692 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d612a9-950a-4bb2-8fb1-e68ef321e51a/sv-benchmarks/c/weaver/test-easy10.wvr.c [2022-11-18 18:49:44,701 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d612a9-950a-4bb2-8fb1-e68ef321e51a/bin/uautomizer-TMbwUNV5ro/data/3c1377e28/0fedb35a4fd04ad3ab8b9b37cf54a2a3/FLAG301a0f9e0 [2022-11-18 18:49:45,031 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d612a9-950a-4bb2-8fb1-e68ef321e51a/bin/uautomizer-TMbwUNV5ro/data/3c1377e28/0fedb35a4fd04ad3ab8b9b37cf54a2a3 [2022-11-18 18:49:45,034 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:49:45,036 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:49:45,041 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:49:45,042 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:49:45,046 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:49:45,047 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:49:45" (1/1) ... [2022-11-18 18:49:45,048 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e9e0422 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:45, skipping insertion in model container [2022-11-18 18:49:45,049 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:49:45" (1/1) ... [2022-11-18 18:49:45,059 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:49:45,105 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:49:45,450 WARN L234 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_83d612a9-950a-4bb2-8fb1-e68ef321e51a/sv-benchmarks/c/weaver/test-easy10.wvr.c[3907,3920] [2022-11-18 18:49:45,463 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:49:45,476 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:49:45,568 WARN L234 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_83d612a9-950a-4bb2-8fb1-e68ef321e51a/sv-benchmarks/c/weaver/test-easy10.wvr.c[3907,3920] [2022-11-18 18:49:45,573 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:49:45,596 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:49:45,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:45 WrapperNode [2022-11-18 18:49:45,597 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:49:45,599 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:49:45,599 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:49:45,599 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:49:45,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:45" (1/1) ... [2022-11-18 18:49:45,644 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:45" (1/1) ... [2022-11-18 18:49:45,699 INFO L138 Inliner]: procedures = 23, calls = 84, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 392 [2022-11-18 18:49:45,699 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:49:45,700 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:49:45,700 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:49:45,700 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:49:45,720 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:45" (1/1) ... [2022-11-18 18:49:45,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:45" (1/1) ... [2022-11-18 18:49:45,736 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:45" (1/1) ... [2022-11-18 18:49:45,737 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:45" (1/1) ... [2022-11-18 18:49:45,764 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:45" (1/1) ... [2022-11-18 18:49:45,767 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:45" (1/1) ... [2022-11-18 18:49:45,769 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:45" (1/1) ... [2022-11-18 18:49:45,771 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:45" (1/1) ... [2022-11-18 18:49:45,775 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:49:45,776 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:49:45,776 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:49:45,776 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:49:45,777 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:45" (1/1) ... [2022-11-18 18:49:45,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:49:45,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d612a9-950a-4bb2-8fb1-e68ef321e51a/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:49:45,820 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d612a9-950a-4bb2-8fb1-e68ef321e51a/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:49:45,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d612a9-950a-4bb2-8fb1-e68ef321e51a/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:49:45,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:49:45,878 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 18:49:45,878 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 18:49:45,878 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 18:49:45,879 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 18:49:45,880 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-18 18:49:45,881 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-18 18:49:45,881 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-18 18:49:45,881 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-18 18:49:45,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 18:49:45,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 18:49:45,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 18:49:45,882 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 18:49:45,882 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 18:49:45,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:49:45,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:49:45,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 18:49:45,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 18:49:45,886 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 18:49:46,109 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:49:46,124 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:49:46,823 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:49:47,220 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:49:47,220 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 18:49:47,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:49:47 BoogieIcfgContainer [2022-11-18 18:49:47,224 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:49:47,227 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:49:47,227 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:49:47,232 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:49:47,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:49:45" (1/3) ... [2022-11-18 18:49:47,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c2d14bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:49:47, skipping insertion in model container [2022-11-18 18:49:47,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:45" (2/3) ... [2022-11-18 18:49:47,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c2d14bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:49:47, skipping insertion in model container [2022-11-18 18:49:47,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:49:47" (3/3) ... [2022-11-18 18:49:47,236 INFO L112 eAbstractionObserver]: Analyzing ICFG test-easy10.wvr.c [2022-11-18 18:49:47,248 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 18:49:47,263 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:49:47,263 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 60 error locations. [2022-11-18 18:49:47,264 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 18:49:47,427 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-18 18:49:47,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 268 places, 259 transitions, 550 flow [2022-11-18 18:49:47,624 INFO L130 PetriNetUnfolder]: 4/255 cut-off events. [2022-11-18 18:49:47,625 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-18 18:49:47,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 255 events. 4/255 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 304 event pairs, 0 based on Foata normal form. 0/191 useless extension candidates. Maximal degree in co-relation 165. Up to 2 conditions per place. [2022-11-18 18:49:47,631 INFO L82 GeneralOperation]: Start removeDead. Operand has 268 places, 259 transitions, 550 flow [2022-11-18 18:49:47,640 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 241 places, 230 transitions, 484 flow [2022-11-18 18:49:47,652 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:49:47,662 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;@142234da, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:49:47,663 INFO L358 AbstractCegarLoop]: Starting to check reachability of 108 error locations. [2022-11-18 18:49:47,676 INFO L130 PetriNetUnfolder]: 0/31 cut-off events. [2022-11-18 18:49:47,676 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 18:49:47,676 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:49:47,677 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:49:47,677 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 104 more)] === [2022-11-18 18:49:47,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:49:47,706 INFO L85 PathProgramCache]: Analyzing trace with hash 475721897, now seen corresponding path program 1 times [2022-11-18 18:49:47,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:49:47,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370481212] [2022-11-18 18:49:47,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:49:47,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:49:47,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:48,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:49:48,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:49:48,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370481212] [2022-11-18 18:49:48,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370481212] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:49:48,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:49:48,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:49:48,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49342564] [2022-11-18 18:49:48,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:49:48,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:49:48,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:49:48,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:49:48,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:49:48,150 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 259 [2022-11-18 18:49:48,159 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 230 transitions, 484 flow. Second operand has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:48,160 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:49:48,160 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 259 [2022-11-18 18:49:48,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:49:52,239 INFO L130 PetriNetUnfolder]: 7777/12184 cut-off events. [2022-11-18 18:49:52,240 INFO L131 PetriNetUnfolder]: For 2065/2530 co-relation queries the response was YES. [2022-11-18 18:49:52,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24377 conditions, 12184 events. 7777/12184 cut-off events. For 2065/2530 co-relation queries the response was YES. Maximal size of possible extension queue 459. Compared 77724 event pairs, 7776 based on Foata normal form. 1/12077 useless extension candidates. Maximal degree in co-relation 23828. Up to 10986 conditions per place. [2022-11-18 18:49:52,401 INFO L137 encePairwiseOnDemand]: 211/259 looper letters, 41 selfloop transitions, 2 changer transitions 1/184 dead transitions. [2022-11-18 18:49:52,401 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 184 transitions, 478 flow [2022-11-18 18:49:52,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:49:52,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:49:52,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 593 transitions. [2022-11-18 18:49:52,421 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7631917631917632 [2022-11-18 18:49:52,422 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 593 transitions. [2022-11-18 18:49:52,423 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 593 transitions. [2022-11-18 18:49:52,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:49:52,429 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 593 transitions. [2022-11-18 18:49:52,434 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 197.66666666666666) internal successors, (593), 3 states have internal predecessors, (593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:52,442 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:52,443 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:52,446 INFO L175 Difference]: Start difference. First operand has 241 places, 230 transitions, 484 flow. Second operand 3 states and 593 transitions. [2022-11-18 18:49:52,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 184 transitions, 478 flow [2022-11-18 18:49:52,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 184 transitions, 462 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-11-18 18:49:52,459 INFO L231 Difference]: Finished difference. Result has 190 places, 183 transitions, 378 flow [2022-11-18 18:49:52,462 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=378, PETRI_PLACES=190, PETRI_TRANSITIONS=183} [2022-11-18 18:49:52,467 INFO L288 CegarLoopForPetriNet]: 241 programPoint places, -51 predicate places. [2022-11-18 18:49:52,469 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 183 transitions, 378 flow [2022-11-18 18:49:52,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:52,470 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:49:52,470 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:49:52,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 18:49:52,471 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 104 more)] === [2022-11-18 18:49:52,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:49:52,472 INFO L85 PathProgramCache]: Analyzing trace with hash -672903946, now seen corresponding path program 1 times [2022-11-18 18:49:52,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:49:52,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475992721] [2022-11-18 18:49:52,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:49:52,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:49:52,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:52,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:49:52,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:49:52,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475992721] [2022-11-18 18:49:52,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475992721] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:49:52,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:49:52,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:49:52,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601342546] [2022-11-18 18:49:52,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:49:52,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:49:52,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:49:52,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:49:52,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:49:52,606 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 259 [2022-11-18 18:49:52,607 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 183 transitions, 378 flow. Second operand has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:52,607 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:49:52,608 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 259 [2022-11-18 18:49:52,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:49:55,602 INFO L130 PetriNetUnfolder]: 7777/12182 cut-off events. [2022-11-18 18:49:55,602 INFO L131 PetriNetUnfolder]: For 400/865 co-relation queries the response was YES. [2022-11-18 18:49:55,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23574 conditions, 12182 events. 7777/12182 cut-off events. For 400/865 co-relation queries the response was YES. Maximal size of possible extension queue 459. Compared 77615 event pairs, 7776 based on Foata normal form. 0/12076 useless extension candidates. Maximal degree in co-relation 23534. Up to 10986 conditions per place. [2022-11-18 18:49:55,760 INFO L137 encePairwiseOnDemand]: 256/259 looper letters, 41 selfloop transitions, 2 changer transitions 0/182 dead transitions. [2022-11-18 18:49:55,761 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 182 transitions, 462 flow [2022-11-18 18:49:55,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:49:55,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:49:55,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 548 transitions. [2022-11-18 18:49:55,765 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7052767052767053 [2022-11-18 18:49:55,765 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 548 transitions. [2022-11-18 18:49:55,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 548 transitions. [2022-11-18 18:49:55,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:49:55,766 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 548 transitions. [2022-11-18 18:49:55,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:55,773 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:55,774 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:55,774 INFO L175 Difference]: Start difference. First operand has 190 places, 183 transitions, 378 flow. Second operand 3 states and 548 transitions. [2022-11-18 18:49:55,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 182 transitions, 462 flow [2022-11-18 18:49:55,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 182 transitions, 458 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:49:55,781 INFO L231 Difference]: Finished difference. Result has 188 places, 182 transitions, 376 flow [2022-11-18 18:49:55,782 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=376, PETRI_PLACES=188, PETRI_TRANSITIONS=182} [2022-11-18 18:49:55,783 INFO L288 CegarLoopForPetriNet]: 241 programPoint places, -53 predicate places. [2022-11-18 18:49:55,784 INFO L495 AbstractCegarLoop]: Abstraction has has 188 places, 182 transitions, 376 flow [2022-11-18 18:49:55,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:55,785 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:49:55,785 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:49:55,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 18:49:55,786 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 104 more)] === [2022-11-18 18:49:55,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:49:55,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1371823010, now seen corresponding path program 1 times [2022-11-18 18:49:55,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:49:55,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80964562] [2022-11-18 18:49:55,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:49:55,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:49:55,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:55,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:49:55,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:49:55,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80964562] [2022-11-18 18:49:55,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80964562] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:49:55,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:49:55,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:49:55,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032764040] [2022-11-18 18:49:55,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:49:55,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:49:55,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:49:55,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:49:55,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:49:55,859 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 259 [2022-11-18 18:49:55,860 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 182 transitions, 376 flow. Second operand has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:55,861 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:49:55,861 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 259 [2022-11-18 18:49:55,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:49:58,325 INFO L130 PetriNetUnfolder]: 7777/12181 cut-off events. [2022-11-18 18:49:58,325 INFO L131 PetriNetUnfolder]: For 400/865 co-relation queries the response was YES. [2022-11-18 18:49:58,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23573 conditions, 12181 events. 7777/12181 cut-off events. For 400/865 co-relation queries the response was YES. Maximal size of possible extension queue 459. Compared 77601 event pairs, 7776 based on Foata normal form. 0/12076 useless extension candidates. Maximal degree in co-relation 23527. Up to 10986 conditions per place. [2022-11-18 18:49:58,443 INFO L137 encePairwiseOnDemand]: 256/259 looper letters, 41 selfloop transitions, 2 changer transitions 0/181 dead transitions. [2022-11-18 18:49:58,443 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 181 transitions, 460 flow [2022-11-18 18:49:58,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:49:58,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:49:58,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 548 transitions. [2022-11-18 18:49:58,447 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7052767052767053 [2022-11-18 18:49:58,447 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 548 transitions. [2022-11-18 18:49:58,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 548 transitions. [2022-11-18 18:49:58,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:49:58,448 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 548 transitions. [2022-11-18 18:49:58,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:58,453 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:58,453 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:58,454 INFO L175 Difference]: Start difference. First operand has 188 places, 182 transitions, 376 flow. Second operand 3 states and 548 transitions. [2022-11-18 18:49:58,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 181 transitions, 460 flow [2022-11-18 18:49:58,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 181 transitions, 456 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:49:58,585 INFO L231 Difference]: Finished difference. Result has 187 places, 181 transitions, 374 flow [2022-11-18 18:49:58,586 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=370, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=374, PETRI_PLACES=187, PETRI_TRANSITIONS=181} [2022-11-18 18:49:58,587 INFO L288 CegarLoopForPetriNet]: 241 programPoint places, -54 predicate places. [2022-11-18 18:49:58,587 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 181 transitions, 374 flow [2022-11-18 18:49:58,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:58,589 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:49:58,589 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:49:58,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 18:49:58,590 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 104 more)] === [2022-11-18 18:49:58,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:49:58,591 INFO L85 PathProgramCache]: Analyzing trace with hash 818581390, now seen corresponding path program 1 times [2022-11-18 18:49:58,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:49:58,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083673571] [2022-11-18 18:49:58,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:49:58,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:49:58,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:58,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:49:58,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:49:58,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083673571] [2022-11-18 18:49:58,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083673571] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:49:58,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:49:58,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:49:58,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555193693] [2022-11-18 18:49:58,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:49:58,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:49:58,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:49:58,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:49:58,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:49:58,718 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 259 [2022-11-18 18:49:58,719 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 181 transitions, 374 flow. Second operand has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:58,719 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:49:58,720 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 259 [2022-11-18 18:49:58,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:50:00,851 INFO L130 PetriNetUnfolder]: 7777/12180 cut-off events. [2022-11-18 18:50:00,851 INFO L131 PetriNetUnfolder]: For 400/865 co-relation queries the response was YES. [2022-11-18 18:50:00,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23571 conditions, 12180 events. 7777/12180 cut-off events. For 400/865 co-relation queries the response was YES. Maximal size of possible extension queue 459. Compared 77415 event pairs, 7776 based on Foata normal form. 0/12076 useless extension candidates. Maximal degree in co-relation 23519. Up to 10985 conditions per place. [2022-11-18 18:50:00,949 INFO L137 encePairwiseOnDemand]: 256/259 looper letters, 40 selfloop transitions, 2 changer transitions 0/180 dead transitions. [2022-11-18 18:50:00,949 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 180 transitions, 456 flow [2022-11-18 18:50:00,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:50:00,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:50:00,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 547 transitions. [2022-11-18 18:50:00,952 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.703989703989704 [2022-11-18 18:50:00,953 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 547 transitions. [2022-11-18 18:50:00,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 547 transitions. [2022-11-18 18:50:00,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:50:00,954 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 547 transitions. [2022-11-18 18:50:00,956 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 182.33333333333334) internal successors, (547), 3 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:00,958 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:00,959 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:00,960 INFO L175 Difference]: Start difference. First operand has 187 places, 181 transitions, 374 flow. Second operand 3 states and 547 transitions. [2022-11-18 18:50:00,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 180 transitions, 456 flow [2022-11-18 18:50:00,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 180 transitions, 452 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:50:00,971 INFO L231 Difference]: Finished difference. Result has 186 places, 180 transitions, 372 flow [2022-11-18 18:50:00,972 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=372, PETRI_PLACES=186, PETRI_TRANSITIONS=180} [2022-11-18 18:50:00,974 INFO L288 CegarLoopForPetriNet]: 241 programPoint places, -55 predicate places. [2022-11-18 18:50:00,974 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 180 transitions, 372 flow [2022-11-18 18:50:00,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:00,975 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:50:00,976 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:50:00,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 18:50:00,976 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 104 more)] === [2022-11-18 18:50:00,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:00,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1537109609, now seen corresponding path program 1 times [2022-11-18 18:50:00,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:00,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765240721] [2022-11-18 18:50:00,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:00,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:01,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:01,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:50:01,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:01,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765240721] [2022-11-18 18:50:01,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765240721] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:01,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:50:01,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:50:01,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719140328] [2022-11-18 18:50:01,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:01,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:50:01,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:01,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:50:01,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:50:01,079 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 259 [2022-11-18 18:50:01,080 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 180 transitions, 372 flow. Second operand has 3 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:01,081 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:50:01,081 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 259 [2022-11-18 18:50:01,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:50:03,725 INFO L130 PetriNetUnfolder]: 8726/17152 cut-off events. [2022-11-18 18:50:03,725 INFO L131 PetriNetUnfolder]: For 449/979 co-relation queries the response was YES. [2022-11-18 18:50:03,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29927 conditions, 17152 events. 8726/17152 cut-off events. For 449/979 co-relation queries the response was YES. Maximal size of possible extension queue 525. Compared 144700 event pairs, 2355 based on Foata normal form. 1/16672 useless extension candidates. Maximal degree in co-relation 29868. Up to 8887 conditions per place. [2022-11-18 18:50:03,865 INFO L137 encePairwiseOnDemand]: 251/259 looper letters, 60 selfloop transitions, 6 changer transitions 0/206 dead transitions. [2022-11-18 18:50:03,865 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 206 transitions, 560 flow [2022-11-18 18:50:03,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:50:03,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:50:03,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 581 transitions. [2022-11-18 18:50:03,868 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7477477477477478 [2022-11-18 18:50:03,869 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 581 transitions. [2022-11-18 18:50:03,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 581 transitions. [2022-11-18 18:50:03,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:50:03,870 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 581 transitions. [2022-11-18 18:50:03,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 193.66666666666666) internal successors, (581), 3 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:03,874 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:03,875 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:03,875 INFO L175 Difference]: Start difference. First operand has 186 places, 180 transitions, 372 flow. Second operand 3 states and 581 transitions. [2022-11-18 18:50:03,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 206 transitions, 560 flow [2022-11-18 18:50:03,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 206 transitions, 556 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:50:03,881 INFO L231 Difference]: Finished difference. Result has 186 places, 182 transitions, 404 flow [2022-11-18 18:50:03,882 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=404, PETRI_PLACES=186, PETRI_TRANSITIONS=182} [2022-11-18 18:50:03,887 INFO L288 CegarLoopForPetriNet]: 241 programPoint places, -55 predicate places. [2022-11-18 18:50:03,887 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 182 transitions, 404 flow [2022-11-18 18:50:03,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:03,888 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:50:03,889 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:50:03,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 18:50:03,890 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 104 more)] === [2022-11-18 18:50:03,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:03,894 INFO L85 PathProgramCache]: Analyzing trace with hash 306440986, now seen corresponding path program 1 times [2022-11-18 18:50:03,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:03,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441121855] [2022-11-18 18:50:03,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:03,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:03,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:03,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:50:04,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:04,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441121855] [2022-11-18 18:50:04,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441121855] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:04,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:50:04,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:50:04,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975524418] [2022-11-18 18:50:04,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:04,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:50:04,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:04,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:50:04,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:50:04,008 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 259 [2022-11-18 18:50:04,009 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 182 transitions, 404 flow. Second operand has 3 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:04,009 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:50:04,009 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 259 [2022-11-18 18:50:04,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:50:06,327 INFO L130 PetriNetUnfolder]: 9643/15666 cut-off events. [2022-11-18 18:50:06,328 INFO L131 PetriNetUnfolder]: For 5401/6014 co-relation queries the response was YES. [2022-11-18 18:50:06,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33426 conditions, 15666 events. 9643/15666 cut-off events. For 5401/6014 co-relation queries the response was YES. Maximal size of possible extension queue 647. Compared 112108 event pairs, 2672 based on Foata normal form. 1/15537 useless extension candidates. Maximal degree in co-relation 25108. Up to 9459 conditions per place. [2022-11-18 18:50:06,499 INFO L137 encePairwiseOnDemand]: 251/259 looper letters, 68 selfloop transitions, 6 changer transitions 0/212 dead transitions. [2022-11-18 18:50:06,499 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 212 transitions, 640 flow [2022-11-18 18:50:06,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:50:06,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:50:06,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 581 transitions. [2022-11-18 18:50:06,503 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7477477477477478 [2022-11-18 18:50:06,503 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 581 transitions. [2022-11-18 18:50:06,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 581 transitions. [2022-11-18 18:50:06,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:50:06,505 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 581 transitions. [2022-11-18 18:50:06,507 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 193.66666666666666) internal successors, (581), 3 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:06,510 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:06,511 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:06,512 INFO L175 Difference]: Start difference. First operand has 186 places, 182 transitions, 404 flow. Second operand 3 states and 581 transitions. [2022-11-18 18:50:06,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 212 transitions, 640 flow [2022-11-18 18:50:06,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 212 transitions, 620 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:50:06,533 INFO L231 Difference]: Finished difference. Result has 186 places, 184 transitions, 428 flow [2022-11-18 18:50:06,534 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=388, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=428, PETRI_PLACES=186, PETRI_TRANSITIONS=184} [2022-11-18 18:50:06,538 INFO L288 CegarLoopForPetriNet]: 241 programPoint places, -55 predicate places. [2022-11-18 18:50:06,538 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 184 transitions, 428 flow [2022-11-18 18:50:06,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:06,540 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:50:06,541 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:50:06,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 18:50:06,541 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 104 more)] === [2022-11-18 18:50:06,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:06,542 INFO L85 PathProgramCache]: Analyzing trace with hash 729640470, now seen corresponding path program 1 times [2022-11-18 18:50:06,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:06,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756488930] [2022-11-18 18:50:06,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:06,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:06,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:06,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:50:06,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:06,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756488930] [2022-11-18 18:50:06,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756488930] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:06,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:50:06,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:50:06,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292269891] [2022-11-18 18:50:06,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:06,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:50:06,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:06,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:50:06,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:50:06,648 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 259 [2022-11-18 18:50:06,650 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 184 transitions, 428 flow. Second operand has 3 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:06,650 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:50:06,650 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 259 [2022-11-18 18:50:06,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:50:09,556 INFO L130 PetriNetUnfolder]: 11552/17767 cut-off events. [2022-11-18 18:50:09,556 INFO L131 PetriNetUnfolder]: For 5951/6569 co-relation queries the response was YES. [2022-11-18 18:50:09,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41477 conditions, 17767 events. 11552/17767 cut-off events. For 5951/6569 co-relation queries the response was YES. Maximal size of possible extension queue 687. Compared 118897 event pairs, 7587 based on Foata normal form. 0/17611 useless extension candidates. Maximal degree in co-relation 29056. Up to 11873 conditions per place. [2022-11-18 18:50:09,710 INFO L137 encePairwiseOnDemand]: 251/259 looper letters, 74 selfloop transitions, 6 changer transitions 0/216 dead transitions. [2022-11-18 18:50:09,711 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 216 transitions, 691 flow [2022-11-18 18:50:09,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:50:09,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:50:09,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 582 transitions. [2022-11-18 18:50:09,715 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.749034749034749 [2022-11-18 18:50:09,716 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 582 transitions. [2022-11-18 18:50:09,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 582 transitions. [2022-11-18 18:50:09,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:50:09,717 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 582 transitions. [2022-11-18 18:50:09,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 194.0) internal successors, (582), 3 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:09,722 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:09,723 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:09,724 INFO L175 Difference]: Start difference. First operand has 186 places, 184 transitions, 428 flow. Second operand 3 states and 582 transitions. [2022-11-18 18:50:09,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 216 transitions, 691 flow [2022-11-18 18:50:09,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 216 transitions, 671 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:50:09,793 INFO L231 Difference]: Finished difference. Result has 186 places, 186 transitions, 452 flow [2022-11-18 18:50:09,793 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=412, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=452, PETRI_PLACES=186, PETRI_TRANSITIONS=186} [2022-11-18 18:50:09,794 INFO L288 CegarLoopForPetriNet]: 241 programPoint places, -55 predicate places. [2022-11-18 18:50:09,794 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 186 transitions, 452 flow [2022-11-18 18:50:09,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:09,795 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:50:09,795 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:50:09,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 18:50:09,796 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 104 more)] === [2022-11-18 18:50:09,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:09,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1104850037, now seen corresponding path program 1 times [2022-11-18 18:50:09,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:09,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216505820] [2022-11-18 18:50:09,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:09,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:09,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:09,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:50:09,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:09,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216505820] [2022-11-18 18:50:09,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216505820] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:09,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:50:09,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:50:09,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625114302] [2022-11-18 18:50:09,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:09,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:50:09,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:09,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:50:09,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:50:09,891 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 259 [2022-11-18 18:50:09,892 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 186 transitions, 452 flow. Second operand has 3 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:09,892 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:50:09,893 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 259 [2022-11-18 18:50:09,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:50:13,836 INFO L130 PetriNetUnfolder]: 14384/22411 cut-off events. [2022-11-18 18:50:13,836 INFO L131 PetriNetUnfolder]: For 12739/13656 co-relation queries the response was YES. [2022-11-18 18:50:13,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55600 conditions, 22411 events. 14384/22411 cut-off events. For 12739/13656 co-relation queries the response was YES. Maximal size of possible extension queue 900. Compared 158729 event pairs, 8832 based on Foata normal form. 2/22177 useless extension candidates. Maximal degree in co-relation 34932. Up to 13727 conditions per place. [2022-11-18 18:50:14,372 INFO L137 encePairwiseOnDemand]: 251/259 looper letters, 82 selfloop transitions, 5 changer transitions 11/224 dead transitions. [2022-11-18 18:50:14,372 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 224 transitions, 763 flow [2022-11-18 18:50:14,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:50:14,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:50:14,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 583 transitions. [2022-11-18 18:50:14,390 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7503217503217503 [2022-11-18 18:50:14,392 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 583 transitions. [2022-11-18 18:50:14,392 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 583 transitions. [2022-11-18 18:50:14,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:50:14,393 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 583 transitions. [2022-11-18 18:50:14,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 194.33333333333334) internal successors, (583), 3 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:14,400 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:14,401 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:14,402 INFO L175 Difference]: Start difference. First operand has 186 places, 186 transitions, 452 flow. Second operand 3 states and 583 transitions. [2022-11-18 18:50:14,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 224 transitions, 763 flow [2022-11-18 18:50:14,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 224 transitions, 743 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:50:14,413 INFO L231 Difference]: Finished difference. Result has 186 places, 177 transitions, 443 flow [2022-11-18 18:50:14,414 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=443, PETRI_PLACES=186, PETRI_TRANSITIONS=177} [2022-11-18 18:50:14,417 INFO L288 CegarLoopForPetriNet]: 241 programPoint places, -55 predicate places. [2022-11-18 18:50:14,418 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 177 transitions, 443 flow [2022-11-18 18:50:14,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:14,418 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:50:14,419 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:50:14,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 18:50:14,419 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 104 more)] === [2022-11-18 18:50:14,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:14,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1752497892, now seen corresponding path program 1 times [2022-11-18 18:50:14,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:14,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307942732] [2022-11-18 18:50:14,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:14,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:14,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:15,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:50:15,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:15,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307942732] [2022-11-18 18:50:15,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307942732] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:15,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:50:15,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:50:15,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441921712] [2022-11-18 18:50:15,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:15,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:50:15,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:15,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:50:15,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:50:15,172 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 259 [2022-11-18 18:50:15,174 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 177 transitions, 443 flow. Second operand has 6 states, 6 states have (on average 152.16666666666666) internal successors, (913), 6 states have internal predecessors, (913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:15,174 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:50:15,174 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 259 [2022-11-18 18:50:15,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:50:35,628 INFO L130 PetriNetUnfolder]: 113528/153991 cut-off events. [2022-11-18 18:50:35,629 INFO L131 PetriNetUnfolder]: For 102187/102187 co-relation queries the response was YES. [2022-11-18 18:50:35,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 401623 conditions, 153991 events. 113528/153991 cut-off events. For 102187/102187 co-relation queries the response was YES. Maximal size of possible extension queue 3676. Compared 973762 event pairs, 22252 based on Foata normal form. 0/153139 useless extension candidates. Maximal degree in co-relation 138723. Up to 54723 conditions per place. [2022-11-18 18:50:36,777 INFO L137 encePairwiseOnDemand]: 254/259 looper letters, 229 selfloop transitions, 4 changer transitions 1/336 dead transitions. [2022-11-18 18:50:36,777 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 336 transitions, 1517 flow [2022-11-18 18:50:36,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:50:36,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 18:50:36,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1055 transitions. [2022-11-18 18:50:36,782 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6788931788931789 [2022-11-18 18:50:36,782 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1055 transitions. [2022-11-18 18:50:36,783 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1055 transitions. [2022-11-18 18:50:36,784 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:50:36,784 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1055 transitions. [2022-11-18 18:50:36,788 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 175.83333333333334) internal successors, (1055), 6 states have internal predecessors, (1055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:36,792 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 259.0) internal successors, (1813), 7 states have internal predecessors, (1813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:36,793 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 259.0) internal successors, (1813), 7 states have internal predecessors, (1813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:36,793 INFO L175 Difference]: Start difference. First operand has 186 places, 177 transitions, 443 flow. Second operand 6 states and 1055 transitions. [2022-11-18 18:50:36,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 336 transitions, 1517 flow [2022-11-18 18:50:36,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 336 transitions, 1475 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:50:36,843 INFO L231 Difference]: Finished difference. Result has 177 places, 175 transitions, 437 flow [2022-11-18 18:50:36,843 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=431, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=437, PETRI_PLACES=177, PETRI_TRANSITIONS=175} [2022-11-18 18:50:36,844 INFO L288 CegarLoopForPetriNet]: 241 programPoint places, -64 predicate places. [2022-11-18 18:50:36,844 INFO L495 AbstractCegarLoop]: Abstraction has has 177 places, 175 transitions, 437 flow [2022-11-18 18:50:36,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 152.16666666666666) internal successors, (913), 6 states have internal predecessors, (913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:36,845 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:50:36,846 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:50:36,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 18:50:36,846 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 104 more)] === [2022-11-18 18:50:36,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:36,847 INFO L85 PathProgramCache]: Analyzing trace with hash -575927504, now seen corresponding path program 1 times [2022-11-18 18:50:36,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:36,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78845048] [2022-11-18 18:50:36,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:36,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:36,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:37,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:50:37,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:37,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78845048] [2022-11-18 18:50:37,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78845048] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:37,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:50:37,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:50:37,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682295979] [2022-11-18 18:50:37,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:37,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:50:37,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:37,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:50:37,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:50:37,907 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 259 [2022-11-18 18:50:37,909 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 175 transitions, 437 flow. Second operand has 6 states, 6 states have (on average 154.16666666666666) internal successors, (925), 6 states have internal predecessors, (925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:37,909 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:50:37,909 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 259 [2022-11-18 18:50:37,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand