./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_07-tricky_address2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4651bebf-7828-4a2b-a14f-ac1aa69a863a/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4651bebf-7828-4a2b-a14f-ac1aa69a863a/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_4651bebf-7828-4a2b-a14f-ac1aa69a863a/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4651bebf-7828-4a2b-a14f-ac1aa69a863a/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_07-tricky_address2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4651bebf-7828-4a2b-a14f-ac1aa69a863a/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_4651bebf-7828-4a2b-a14f-ac1aa69a863a/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 c18dd13658bb5739ed2db8c4c80ae330682b7c3cebd2ad85657518c27ca325b9 --- 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 20:58:29,329 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:58:29,336 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:58:29,385 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:58:29,388 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:58:29,395 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:58:29,397 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:58:29,403 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:58:29,406 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:58:29,408 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:58:29,410 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:58:29,414 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:58:29,415 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:58:29,421 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:58:29,423 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:58:29,426 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:58:29,428 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:58:29,431 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:58:29,437 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:58:29,439 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:58:29,444 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:58:29,445 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:58:29,449 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:58:29,450 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:58:29,459 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:58:29,465 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:58:29,465 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:58:29,467 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:58:29,468 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:58:29,470 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:58:29,470 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:58:29,472 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:58:29,474 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:58:29,475 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:58:29,477 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:58:29,477 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:58:29,478 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:58:29,478 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:58:29,479 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:58:29,480 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:58:29,481 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:58:29,482 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4651bebf-7828-4a2b-a14f-ac1aa69a863a/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 20:58:29,529 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:58:29,529 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:58:29,530 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:58:29,530 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:58:29,532 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:58:29,532 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:58:29,533 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:58:29,533 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:58:29,534 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:58:29,534 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:58:29,535 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:58:29,536 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:58:29,536 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:58:29,536 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:58:29,537 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:58:29,537 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:58:29,537 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:58:29,537 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:58:29,538 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 20:58:29,538 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:58:29,538 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:58:29,538 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:58:29,539 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:58:29,539 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:58:29,539 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:58:29,540 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:58:29,542 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:58:29,543 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:58:29,543 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:58:29,543 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:58:29,543 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:58:29,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:58:29,544 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:58:29,544 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:58:29,545 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:58:29,545 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_4651bebf-7828-4a2b-a14f-ac1aa69a863a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4651bebf-7828-4a2b-a14f-ac1aa69a863a/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c18dd13658bb5739ed2db8c4c80ae330682b7c3cebd2ad85657518c27ca325b9 [2022-11-18 20:58:29,880 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:58:29,913 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:58:29,916 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:58:29,918 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:58:29,919 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:58:29,921 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4651bebf-7828-4a2b-a14f-ac1aa69a863a/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/goblint-regression/06-symbeq_07-tricky_address2.i [2022-11-18 20:58:29,998 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4651bebf-7828-4a2b-a14f-ac1aa69a863a/bin/uautomizer-TMbwUNV5ro/data/b00f338bf/0e0692dc56bb4196a31bed5f187da7de/FLAG527637419 [2022-11-18 20:58:30,602 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:58:30,603 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4651bebf-7828-4a2b-a14f-ac1aa69a863a/sv-benchmarks/c/goblint-regression/06-symbeq_07-tricky_address2.i [2022-11-18 20:58:30,623 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4651bebf-7828-4a2b-a14f-ac1aa69a863a/bin/uautomizer-TMbwUNV5ro/data/b00f338bf/0e0692dc56bb4196a31bed5f187da7de/FLAG527637419 [2022-11-18 20:58:30,870 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4651bebf-7828-4a2b-a14f-ac1aa69a863a/bin/uautomizer-TMbwUNV5ro/data/b00f338bf/0e0692dc56bb4196a31bed5f187da7de [2022-11-18 20:58:30,873 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:58:30,875 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:58:30,880 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:58:30,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:58:30,885 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:58:30,886 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:58:30" (1/1) ... [2022-11-18 20:58:30,888 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fb6b420 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:30, skipping insertion in model container [2022-11-18 20:58:30,888 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:58:30" (1/1) ... [2022-11-18 20:58:30,898 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:58:30,975 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:58:31,525 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:58:31,542 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:58:31,591 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:58:31,665 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:58:31,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:31 WrapperNode [2022-11-18 20:58:31,666 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:58:31,668 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:58:31,668 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:58:31,669 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:58:31,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:31" (1/1) ... [2022-11-18 20:58:31,710 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:31" (1/1) ... [2022-11-18 20:58:31,764 INFO L138 Inliner]: procedures = 264, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 88 [2022-11-18 20:58:31,767 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:58:31,768 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:58:31,769 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:58:31,769 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:58:31,780 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:31" (1/1) ... [2022-11-18 20:58:31,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:31" (1/1) ... [2022-11-18 20:58:31,798 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:31" (1/1) ... [2022-11-18 20:58:31,811 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:31" (1/1) ... [2022-11-18 20:58:31,821 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:31" (1/1) ... [2022-11-18 20:58:31,825 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:31" (1/1) ... [2022-11-18 20:58:31,827 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:31" (1/1) ... [2022-11-18 20:58:31,829 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:31" (1/1) ... [2022-11-18 20:58:31,832 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:58:31,833 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:58:31,833 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:58:31,834 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:58:31,836 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:31" (1/1) ... [2022-11-18 20:58:31,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:58:31,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4651bebf-7828-4a2b-a14f-ac1aa69a863a/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:58:31,889 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4651bebf-7828-4a2b-a14f-ac1aa69a863a/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:58:31,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4651bebf-7828-4a2b-a14f-ac1aa69a863a/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:58:31,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:58:31,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:58:31,953 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:58:31,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:58:31,954 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 20:58:31,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:58:31,954 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-18 20:58:31,955 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-18 20:58:31,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:58:31,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:58:31,957 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 20:58:32,217 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:58:32,225 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:58:32,628 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:58:32,638 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:58:32,638 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 20:58:32,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:58:32 BoogieIcfgContainer [2022-11-18 20:58:32,641 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:58:32,645 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:58:32,645 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:58:32,650 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:58:32,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:58:30" (1/3) ... [2022-11-18 20:58:32,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6749dda7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:58:32, skipping insertion in model container [2022-11-18 20:58:32,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:31" (2/3) ... [2022-11-18 20:58:32,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6749dda7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:58:32, skipping insertion in model container [2022-11-18 20:58:32,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:58:32" (3/3) ... [2022-11-18 20:58:32,656 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_07-tricky_address2.i [2022-11-18 20:58:32,674 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:58:32,689 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:58:32,689 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-18 20:58:32,689 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:58:32,821 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 20:58:32,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 103 transitions, 211 flow [2022-11-18 20:58:32,987 INFO L130 PetriNetUnfolder]: 4/102 cut-off events. [2022-11-18 20:58:32,987 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:58:32,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 102 events. 4/102 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 84 event pairs, 0 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2022-11-18 20:58:33,014 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 103 transitions, 211 flow [2022-11-18 20:58:33,022 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 102 transitions, 207 flow [2022-11-18 20:58:33,033 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:58:33,042 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;@4e65281e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:58:33,042 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-18 20:58:33,064 INFO L130 PetriNetUnfolder]: 4/56 cut-off events. [2022-11-18 20:58:33,065 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:58:33,065 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:58:33,066 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] [2022-11-18 20:58:33,067 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 20:58:33,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:33,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1298122157, now seen corresponding path program 1 times [2022-11-18 20:58:33,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:33,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507315524] [2022-11-18 20:58:33,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:33,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:33,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:58:33,457 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 20:58:33,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:58:33,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507315524] [2022-11-18 20:58:33,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507315524] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:58:33,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:58:33,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:58:33,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548927516] [2022-11-18 20:58:33,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:58:33,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 20:58:33,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:58:33,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 20:58:33,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:58:33,561 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 103 [2022-11-18 20:58:33,565 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 102 transitions, 207 flow. Second operand has 2 states, 2 states have (on average 100.0) internal successors, (200), 2 states have internal predecessors, (200), 0 states have call successors, (0), 0 states 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 20:58:33,566 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:58:33,566 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 103 [2022-11-18 20:58:33,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:58:33,673 INFO L130 PetriNetUnfolder]: 1/99 cut-off events. [2022-11-18 20:58:33,674 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 20:58:33,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 99 events. 1/99 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 81 event pairs, 0 based on Foata normal form. 3/95 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2022-11-18 20:58:33,676 INFO L137 encePairwiseOnDemand]: 100/103 looper letters, 1 selfloop transitions, 0 changer transitions 1/99 dead transitions. [2022-11-18 20:58:33,676 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 99 transitions, 203 flow [2022-11-18 20:58:33,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 20:58:33,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-18 20:58:33,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 202 transitions. [2022-11-18 20:58:33,694 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9805825242718447 [2022-11-18 20:58:33,695 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 202 transitions. [2022-11-18 20:58:33,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 202 transitions. [2022-11-18 20:58:33,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:58:33,701 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 202 transitions. [2022-11-18 20:58:33,704 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 101.0) internal successors, (202), 2 states have internal predecessors, (202), 0 states have call successors, (0), 0 states 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 20:58:33,711 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states 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 20:58:33,711 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states 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 20:58:33,713 INFO L175 Difference]: Start difference. First operand has 102 places, 102 transitions, 207 flow. Second operand 2 states and 202 transitions. [2022-11-18 20:58:33,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 99 transitions, 203 flow [2022-11-18 20:58:33,720 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 99 transitions, 202 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:58:33,727 INFO L231 Difference]: Finished difference. Result has 102 places, 98 transitions, 198 flow [2022-11-18 20:58:33,730 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=198, PETRI_PLACES=102, PETRI_TRANSITIONS=98} [2022-11-18 20:58:33,738 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 0 predicate places. [2022-11-18 20:58:33,739 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 98 transitions, 198 flow [2022-11-18 20:58:33,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 100.0) internal successors, (200), 2 states have internal predecessors, (200), 0 states have call successors, (0), 0 states 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 20:58:33,739 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:58:33,740 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] [2022-11-18 20:58:33,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:58:33,741 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 20:58:33,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:33,742 INFO L85 PathProgramCache]: Analyzing trace with hash -779087186, now seen corresponding path program 1 times [2022-11-18 20:58:33,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:33,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380953048] [2022-11-18 20:58:33,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:33,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:33,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:58:33,906 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 20:58:33,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:58:33,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380953048] [2022-11-18 20:58:33,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380953048] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:58:33,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:58:33,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:58:33,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725389189] [2022-11-18 20:58:33,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:58:33,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:58:33,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:58:33,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:58:33,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:58:33,913 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 103 [2022-11-18 20:58:33,914 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 98 transitions, 198 flow. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states 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 20:58:33,915 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:58:33,915 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 103 [2022-11-18 20:58:33,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:58:33,970 INFO L130 PetriNetUnfolder]: 1/102 cut-off events. [2022-11-18 20:58:33,970 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:58:33,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 102 events. 1/102 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 78 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 116. Up to 9 conditions per place. [2022-11-18 20:58:33,972 INFO L137 encePairwiseOnDemand]: 100/103 looper letters, 10 selfloop transitions, 2 changer transitions 0/102 dead transitions. [2022-11-18 20:58:33,972 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 102 transitions, 230 flow [2022-11-18 20:58:33,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:58:33,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:58:33,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 289 transitions. [2022-11-18 20:58:33,976 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9352750809061489 [2022-11-18 20:58:33,976 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 289 transitions. [2022-11-18 20:58:33,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 289 transitions. [2022-11-18 20:58:33,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:58:33,978 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 289 transitions. [2022-11-18 20:58:33,980 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states 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 20:58:33,982 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 0 states have call successors, (0), 0 states 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 20:58:33,983 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 0 states have call successors, (0), 0 states 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 20:58:33,983 INFO L175 Difference]: Start difference. First operand has 102 places, 98 transitions, 198 flow. Second operand 3 states and 289 transitions. [2022-11-18 20:58:33,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 102 transitions, 230 flow [2022-11-18 20:58:33,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 102 transitions, 230 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:58:33,989 INFO L231 Difference]: Finished difference. Result has 104 places, 99 transitions, 210 flow [2022-11-18 20:58:33,990 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=210, PETRI_PLACES=104, PETRI_TRANSITIONS=99} [2022-11-18 20:58:33,991 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 2 predicate places. [2022-11-18 20:58:33,992 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 99 transitions, 210 flow [2022-11-18 20:58:33,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states 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 20:58:33,993 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:58:33,993 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] [2022-11-18 20:58:33,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:58:33,994 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 20:58:33,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:33,997 INFO L85 PathProgramCache]: Analyzing trace with hash 624473633, now seen corresponding path program 1 times [2022-11-18 20:58:33,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:33,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174206469] [2022-11-18 20:58:34,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:34,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:34,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:58:34,254 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:58:34,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:58:34,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174206469] [2022-11-18 20:58:34,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174206469] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:58:34,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379033010] [2022-11-18 20:58:34,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:34,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:58:34,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4651bebf-7828-4a2b-a14f-ac1aa69a863a/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:58:34,260 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4651bebf-7828-4a2b-a14f-ac1aa69a863a/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:58:34,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4651bebf-7828-4a2b-a14f-ac1aa69a863a/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:58:34,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:58:34,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:58:34,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:58:34,567 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:58:34,567 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:58:34,635 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:58:34,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1379033010] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:58:34,637 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:58:34,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 20:58:34,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415216866] [2022-11-18 20:58:34,638 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:58:34,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:58:34,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:58:34,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:58:34,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:58:34,650 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 103 [2022-11-18 20:58:34,652 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 99 transitions, 210 flow. Second operand has 10 states, 10 states have (on average 93.1) internal successors, (931), 10 states have internal predecessors, (931), 0 states have call successors, (0), 0 states 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 20:58:34,653 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:58:34,653 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 103 [2022-11-18 20:58:34,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:58:34,826 INFO L130 PetriNetUnfolder]: 1/109 cut-off events. [2022-11-18 20:58:34,826 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 20:58:34,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 109 events. 1/109 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 2/106 useless extension candidates. Maximal degree in co-relation 137. Up to 6 conditions per place. [2022-11-18 20:58:34,827 INFO L137 encePairwiseOnDemand]: 97/103 looper letters, 11 selfloop transitions, 9 changer transitions 0/109 dead transitions. [2022-11-18 20:58:34,828 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 109 transitions, 272 flow [2022-11-18 20:58:34,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:58:34,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 20:58:34,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 841 transitions. [2022-11-18 20:58:34,833 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9072276159654801 [2022-11-18 20:58:34,834 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 841 transitions. [2022-11-18 20:58:34,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 841 transitions. [2022-11-18 20:58:34,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:58:34,836 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 841 transitions. [2022-11-18 20:58:34,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 93.44444444444444) internal successors, (841), 9 states have internal predecessors, (841), 0 states have call successors, (0), 0 states 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 20:58:34,843 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 103.0) internal successors, (1030), 10 states have internal predecessors, (1030), 0 states have call successors, (0), 0 states 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 20:58:34,848 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 103.0) internal successors, (1030), 10 states have internal predecessors, (1030), 0 states have call successors, (0), 0 states 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 20:58:34,848 INFO L175 Difference]: Start difference. First operand has 104 places, 99 transitions, 210 flow. Second operand 9 states and 841 transitions. [2022-11-18 20:58:34,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 109 transitions, 272 flow [2022-11-18 20:58:34,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 109 transitions, 270 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:58:34,852 INFO L231 Difference]: Finished difference. Result has 114 places, 105 transitions, 258 flow [2022-11-18 20:58:34,852 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=258, PETRI_PLACES=114, PETRI_TRANSITIONS=105} [2022-11-18 20:58:34,853 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 12 predicate places. [2022-11-18 20:58:34,854 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 105 transitions, 258 flow [2022-11-18 20:58:34,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 93.1) internal successors, (931), 10 states have internal predecessors, (931), 0 states have call successors, (0), 0 states 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 20:58:34,855 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:58:34,855 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:58:34,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4651bebf-7828-4a2b-a14f-ac1aa69a863a/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:58:35,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4651bebf-7828-4a2b-a14f-ac1aa69a863a/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-11-18 20:58:35,063 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 20:58:35,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:35,064 INFO L85 PathProgramCache]: Analyzing trace with hash 653292097, now seen corresponding path program 2 times [2022-11-18 20:58:35,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:35,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749847296] [2022-11-18 20:58:35,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:35,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:35,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:58:35,345 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:58:35,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:58:35,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749847296] [2022-11-18 20:58:35,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749847296] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:58:35,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [233117374] [2022-11-18 20:58:35,347 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:58:35,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:58:35,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4651bebf-7828-4a2b-a14f-ac1aa69a863a/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:58:35,349 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4651bebf-7828-4a2b-a14f-ac1aa69a863a/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:58:35,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4651bebf-7828-4a2b-a14f-ac1aa69a863a/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:58:35,474 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 20:58:35,474 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:58:35,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 20:58:35,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:58:35,526 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-18 20:58:35,553 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2022-11-18 20:58:35,596 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:58:35,597 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2022-11-18 20:58:35,658 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:58:35,658 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2022-11-18 20:58:35,701 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-18 20:58:35,701 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:58:35,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [233117374] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:58:35,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:58:35,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2022-11-18 20:58:35,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525111533] [2022-11-18 20:58:35,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:58:35,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:58:35,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:58:35,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:58:35,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-18 20:58:35,705 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 103 [2022-11-18 20:58:35,706 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 105 transitions, 258 flow. Second operand has 6 states, 6 states have (on average 64.33333333333333) internal successors, (386), 6 states have internal predecessors, (386), 0 states have call successors, (0), 0 states 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 20:58:35,706 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:58:35,706 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 103 [2022-11-18 20:58:35,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:58:36,441 INFO L130 PetriNetUnfolder]: 308/1005 cut-off events. [2022-11-18 20:58:36,441 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-18 20:58:36,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1714 conditions, 1005 events. 308/1005 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 6221 event pairs, 128 based on Foata normal form. 0/909 useless extension candidates. Maximal degree in co-relation 1707. Up to 393 conditions per place. [2022-11-18 20:58:36,460 INFO L137 encePairwiseOnDemand]: 92/103 looper letters, 97 selfloop transitions, 22 changer transitions 0/186 dead transitions. [2022-11-18 20:58:36,461 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 186 transitions, 658 flow [2022-11-18 20:58:36,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:58:36,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:58:36,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 492 transitions. [2022-11-18 20:58:36,463 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7961165048543689 [2022-11-18 20:58:36,464 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 492 transitions. [2022-11-18 20:58:36,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 492 transitions. [2022-11-18 20:58:36,464 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:58:36,464 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 492 transitions. [2022-11-18 20:58:36,466 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 82.0) internal successors, (492), 6 states have internal predecessors, (492), 0 states have call successors, (0), 0 states 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 20:58:36,468 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states 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 20:58:36,469 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states 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 20:58:36,469 INFO L175 Difference]: Start difference. First operand has 114 places, 105 transitions, 258 flow. Second operand 6 states and 492 transitions. [2022-11-18 20:58:36,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 186 transitions, 658 flow [2022-11-18 20:58:36,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 186 transitions, 652 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-11-18 20:58:36,479 INFO L231 Difference]: Finished difference. Result has 122 places, 127 transitions, 398 flow [2022-11-18 20:58:36,480 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=398, PETRI_PLACES=122, PETRI_TRANSITIONS=127} [2022-11-18 20:58:36,483 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 20 predicate places. [2022-11-18 20:58:36,483 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 127 transitions, 398 flow [2022-11-18 20:58:36,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.33333333333333) internal successors, (386), 6 states have internal predecessors, (386), 0 states have call successors, (0), 0 states 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 20:58:36,485 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:58:36,485 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:58:36,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4651bebf-7828-4a2b-a14f-ac1aa69a863a/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:58:36,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4651bebf-7828-4a2b-a14f-ac1aa69a863a/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:58:36,692 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 20:58:36,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:36,693 INFO L85 PathProgramCache]: Analyzing trace with hash -406389930, now seen corresponding path program 1 times [2022-11-18 20:58:36,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:36,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651261201] [2022-11-18 20:58:36,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:36,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:36,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:58:36,890 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:58:36,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:58:36,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651261201] [2022-11-18 20:58:36,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651261201] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:58:36,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308625905] [2022-11-18 20:58:36,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:36,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:58:36,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4651bebf-7828-4a2b-a14f-ac1aa69a863a/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:58:36,894 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4651bebf-7828-4a2b-a14f-ac1aa69a863a/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:58:36,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4651bebf-7828-4a2b-a14f-ac1aa69a863a/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 20:58:37,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:58:37,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 20:58:37,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:58:37,090 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:58:37,090 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:58:37,218 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:58:37,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [308625905] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:58:37,219 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:58:37,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-18 20:58:37,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936063161] [2022-11-18 20:58:37,220 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:58:37,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 20:58:37,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:58:37,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 20:58:37,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-18 20:58:37,226 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 103 [2022-11-18 20:58:37,228 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 127 transitions, 398 flow. Second operand has 18 states, 18 states have (on average 93.27777777777777) internal successors, (1679), 18 states have internal predecessors, (1679), 0 states have call successors, (0), 0 states 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 20:58:37,229 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:58:37,229 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 103 [2022-11-18 20:58:37,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:58:37,580 INFO L130 PetriNetUnfolder]: 34/376 cut-off events. [2022-11-18 20:58:37,580 INFO L131 PetriNetUnfolder]: For 41/41 co-relation queries the response was YES. [2022-11-18 20:58:37,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 640 conditions, 376 events. 34/376 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1762 event pairs, 9 based on Foata normal form. 4/356 useless extension candidates. Maximal degree in co-relation 628. Up to 53 conditions per place. [2022-11-18 20:58:37,583 INFO L137 encePairwiseOnDemand]: 97/103 looper letters, 19 selfloop transitions, 21 changer transitions 0/151 dead transitions. [2022-11-18 20:58:37,584 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 151 transitions, 578 flow [2022-11-18 20:58:37,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 20:58:37,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-18 20:58:37,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1955 transitions. [2022-11-18 20:58:37,590 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.903837263060564 [2022-11-18 20:58:37,590 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1955 transitions. [2022-11-18 20:58:37,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1955 transitions. [2022-11-18 20:58:37,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:58:37,592 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1955 transitions. [2022-11-18 20:58:37,597 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 93.0952380952381) internal successors, (1955), 21 states have internal predecessors, (1955), 0 states have call successors, (0), 0 states 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 20:58:37,602 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 103.0) internal successors, (2266), 22 states have internal predecessors, (2266), 0 states have call successors, (0), 0 states 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 20:58:37,604 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 103.0) internal successors, (2266), 22 states have internal predecessors, (2266), 0 states have call successors, (0), 0 states 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 20:58:37,604 INFO L175 Difference]: Start difference. First operand has 122 places, 127 transitions, 398 flow. Second operand 21 states and 1955 transitions. [2022-11-18 20:58:37,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 151 transitions, 578 flow [2022-11-18 20:58:37,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 151 transitions, 578 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:58:37,621 INFO L231 Difference]: Finished difference. Result has 147 places, 140 transitions, 528 flow [2022-11-18 20:58:37,622 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=528, PETRI_PLACES=147, PETRI_TRANSITIONS=140} [2022-11-18 20:58:37,626 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 45 predicate places. [2022-11-18 20:58:37,627 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 140 transitions, 528 flow [2022-11-18 20:58:37,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 93.27777777777777) internal successors, (1679), 18 states have internal predecessors, (1679), 0 states have call successors, (0), 0 states 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 20:58:37,628 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:58:37,629 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:58:37,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4651bebf-7828-4a2b-a14f-ac1aa69a863a/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:58:37,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4651bebf-7828-4a2b-a14f-ac1aa69a863a/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:58:37,836 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 20:58:37,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:37,836 INFO L85 PathProgramCache]: Analyzing trace with hash 232143766, now seen corresponding path program 2 times [2022-11-18 20:58:37,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:37,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52411386] [2022-11-18 20:58:37,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:37,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:37,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:58:38,369 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:58:38,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:58:38,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52411386] [2022-11-18 20:58:38,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52411386] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:58:38,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903224467] [2022-11-18 20:58:38,370 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:58:38,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:58:38,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4651bebf-7828-4a2b-a14f-ac1aa69a863a/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:58:38,372 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4651bebf-7828-4a2b-a14f-ac1aa69a863a/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:58:38,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4651bebf-7828-4a2b-a14f-ac1aa69a863a/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 20:58:38,529 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 20:58:38,529 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:58:38,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 20:58:38,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:58:38,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-18 20:58:38,595 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2022-11-18 20:58:38,642 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:58:38,643 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2022-11-18 20:58:38,708 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:58:38,709 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2022-11-18 20:58:38,765 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-18 20:58:38,765 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:58:38,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [903224467] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:58:38,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:58:38,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2022-11-18 20:58:38,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403436036] [2022-11-18 20:58:38,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:58:38,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:58:38,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:58:38,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:58:38,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2022-11-18 20:58:38,770 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 103 [2022-11-18 20:58:38,771 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 140 transitions, 528 flow. Second operand has 6 states, 6 states have (on average 63.5) internal successors, (381), 6 states have internal predecessors, (381), 0 states have call successors, (0), 0 states 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 20:58:38,771 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:58:38,772 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 103 [2022-11-18 20:58:38,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:58:39,573 INFO L130 PetriNetUnfolder]: 509/1633 cut-off events. [2022-11-18 20:58:39,573 INFO L131 PetriNetUnfolder]: For 383/385 co-relation queries the response was YES. [2022-11-18 20:58:39,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3331 conditions, 1633 events. 509/1633 cut-off events. For 383/385 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 11324 event pairs, 224 based on Foata normal form. 2/1489 useless extension candidates. Maximal degree in co-relation 3314. Up to 756 conditions per place. [2022-11-18 20:58:39,585 INFO L137 encePairwiseOnDemand]: 88/103 looper letters, 102 selfloop transitions, 36 changer transitions 2/217 dead transitions. [2022-11-18 20:58:39,585 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 217 transitions, 1000 flow [2022-11-18 20:58:39,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:58:39,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:58:39,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 478 transitions. [2022-11-18 20:58:39,588 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7734627831715211 [2022-11-18 20:58:39,588 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 478 transitions. [2022-11-18 20:58:39,588 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 478 transitions. [2022-11-18 20:58:39,589 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:58:39,589 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 478 transitions. [2022-11-18 20:58:39,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 79.66666666666667) internal successors, (478), 6 states have internal predecessors, (478), 0 states have call successors, (0), 0 states 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 20:58:39,592 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states 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 20:58:39,592 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states 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 20:58:39,592 INFO L175 Difference]: Start difference. First operand has 147 places, 140 transitions, 528 flow. Second operand 6 states and 478 transitions. [2022-11-18 20:58:39,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 217 transitions, 1000 flow [2022-11-18 20:58:39,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 217 transitions, 976 flow, removed 6 selfloop flow, removed 6 redundant places. [2022-11-18 20:58:39,601 INFO L231 Difference]: Finished difference. Result has 150 places, 172 transitions, 756 flow [2022-11-18 20:58:39,602 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=504, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=756, PETRI_PLACES=150, PETRI_TRANSITIONS=172} [2022-11-18 20:58:39,603 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 48 predicate places. [2022-11-18 20:58:39,603 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 172 transitions, 756 flow [2022-11-18 20:58:39,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 63.5) internal successors, (381), 6 states have internal predecessors, (381), 0 states have call successors, (0), 0 states 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 20:58:39,604 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:58:39,604 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:58:39,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4651bebf-7828-4a2b-a14f-ac1aa69a863a/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:58:39,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4651bebf-7828-4a2b-a14f-ac1aa69a863a/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:58:39,811 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 20:58:39,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:39,812 INFO L85 PathProgramCache]: Analyzing trace with hash -109360466, now seen corresponding path program 1 times [2022-11-18 20:58:39,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:39,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083951479] [2022-11-18 20:58:39,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:39,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:39,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:58:40,267 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:58:40,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:58:40,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083951479] [2022-11-18 20:58:40,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083951479] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:58:40,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [36504075] [2022-11-18 20:58:40,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:40,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:58:40,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4651bebf-7828-4a2b-a14f-ac1aa69a863a/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:58:40,270 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4651bebf-7828-4a2b-a14f-ac1aa69a863a/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:58:40,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4651bebf-7828-4a2b-a14f-ac1aa69a863a/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 20:58:40,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:58:40,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 20:58:40,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:58:40,575 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:58:40,575 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:58:40,874 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:58:40,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [36504075] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:58:40,874 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:58:40,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-11-18 20:58:40,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887984285] [2022-11-18 20:58:40,875 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:58:40,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-18 20:58:40,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:58:40,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-18 20:58:40,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-11-18 20:58:40,880 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 103 [2022-11-18 20:58:40,883 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 172 transitions, 756 flow. Second operand has 23 states, 23 states have (on average 93.43478260869566) internal successors, (2149), 23 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states 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 20:58:40,883 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:58:40,883 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 103 [2022-11-18 20:58:40,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:58:41,489 INFO L130 PetriNetUnfolder]: 110/799 cut-off events. [2022-11-18 20:58:41,489 INFO L131 PetriNetUnfolder]: For 397/407 co-relation queries the response was YES. [2022-11-18 20:58:41,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1611 conditions, 799 events. 110/799 cut-off events. For 397/407 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 5446 event pairs, 26 based on Foata normal form. 11/755 useless extension candidates. Maximal degree in co-relation 1589. Up to 129 conditions per place. [2022-11-18 20:58:41,498 INFO L137 encePairwiseOnDemand]: 97/103 looper letters, 25 selfloop transitions, 30 changer transitions 0/198 dead transitions. [2022-11-18 20:58:41,498 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 198 transitions, 1006 flow [2022-11-18 20:58:41,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-18 20:58:41,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-18 20:58:41,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 2788 transitions. [2022-11-18 20:58:41,505 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9022653721682848 [2022-11-18 20:58:41,506 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 2788 transitions. [2022-11-18 20:58:41,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 2788 transitions. [2022-11-18 20:58:41,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:58:41,508 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 2788 transitions. [2022-11-18 20:58:41,515 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 92.93333333333334) internal successors, (2788), 30 states have internal predecessors, (2788), 0 states have call successors, (0), 0 states 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 20:58:41,522 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 103.0) internal successors, (3193), 31 states have internal predecessors, (3193), 0 states have call successors, (0), 0 states 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 20:58:41,524 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 103.0) internal successors, (3193), 31 states have internal predecessors, (3193), 0 states have call successors, (0), 0 states 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 20:58:41,524 INFO L175 Difference]: Start difference. First operand has 150 places, 172 transitions, 756 flow. Second operand 30 states and 2788 transitions. [2022-11-18 20:58:41,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 198 transitions, 1006 flow [2022-11-18 20:58:41,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 198 transitions, 982 flow, removed 12 selfloop flow, removed 0 redundant places. [2022-11-18 20:58:41,535 INFO L231 Difference]: Finished difference. Result has 182 places, 182 transitions, 884 flow [2022-11-18 20:58:41,536 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=732, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=884, PETRI_PLACES=182, PETRI_TRANSITIONS=182} [2022-11-18 20:58:41,536 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 80 predicate places. [2022-11-18 20:58:41,536 INFO L495 AbstractCegarLoop]: Abstraction has has 182 places, 182 transitions, 884 flow [2022-11-18 20:58:41,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 93.43478260869566) internal successors, (2149), 23 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states 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 20:58:41,538 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:58:41,538 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:58:41,553 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4651bebf-7828-4a2b-a14f-ac1aa69a863a/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 20:58:41,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4651bebf-7828-4a2b-a14f-ac1aa69a863a/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:58:41,747 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 20:58:41,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:41,748 INFO L85 PathProgramCache]: Analyzing trace with hash 827906497, now seen corresponding path program 2 times [2022-11-18 20:58:41,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:41,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426907231] [2022-11-18 20:58:41,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:41,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:41,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:58:42,335 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 20:58:42,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:58:42,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426907231] [2022-11-18 20:58:42,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426907231] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:58:42,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:58:42,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:58:42,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141914012] [2022-11-18 20:58:42,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:58:42,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:58:42,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:58:42,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:58:42,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:58:42,339 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 103 [2022-11-18 20:58:42,340 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 182 transitions, 884 flow. Second operand has 6 states, 6 states have (on average 65.16666666666667) internal successors, (391), 6 states have internal predecessors, (391), 0 states have call successors, (0), 0 states 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 20:58:42,340 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:58:42,340 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 103 [2022-11-18 20:58:42,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:58:43,151 INFO L130 PetriNetUnfolder]: 577/1990 cut-off events. [2022-11-18 20:58:43,151 INFO L131 PetriNetUnfolder]: For 1168/1168 co-relation queries the response was YES. [2022-11-18 20:58:43,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4857 conditions, 1990 events. 577/1990 cut-off events. For 1168/1168 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 14955 event pairs, 176 based on Foata normal form. 0/1886 useless extension candidates. Maximal degree in co-relation 4831. Up to 831 conditions per place. [2022-11-18 20:58:43,167 INFO L137 encePairwiseOnDemand]: 92/103 looper letters, 155 selfloop transitions, 49 changer transitions 0/298 dead transitions. [2022-11-18 20:58:43,167 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 298 transitions, 1811 flow [2022-11-18 20:58:43,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:58:43,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:58:43,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 497 transitions. [2022-11-18 20:58:43,170 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8042071197411004 [2022-11-18 20:58:43,170 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 497 transitions. [2022-11-18 20:58:43,170 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 497 transitions. [2022-11-18 20:58:43,171 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:58:43,172 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 497 transitions. [2022-11-18 20:58:43,173 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 82.83333333333333) internal successors, (497), 6 states have internal predecessors, (497), 0 states have call successors, (0), 0 states 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 20:58:43,174 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states 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 20:58:43,175 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states 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 20:58:43,175 INFO L175 Difference]: Start difference. First operand has 182 places, 182 transitions, 884 flow. Second operand 6 states and 497 transitions. [2022-11-18 20:58:43,175 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 298 transitions, 1811 flow [2022-11-18 20:58:43,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 298 transitions, 1765 flow, removed 5 selfloop flow, removed 18 redundant places. [2022-11-18 20:58:43,199 INFO L231 Difference]: Finished difference. Result has 173 places, 223 transitions, 1254 flow [2022-11-18 20:58:43,199 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=838, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1254, PETRI_PLACES=173, PETRI_TRANSITIONS=223} [2022-11-18 20:58:43,202 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 71 predicate places. [2022-11-18 20:58:43,202 INFO L495 AbstractCegarLoop]: Abstraction has has 173 places, 223 transitions, 1254 flow [2022-11-18 20:58:43,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 65.16666666666667) internal successors, (391), 6 states have internal predecessors, (391), 0 states have call successors, (0), 0 states 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 20:58:43,202 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:58:43,203 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:58:43,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:58:43,203 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 20:58:43,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:43,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1432249786, now seen corresponding path program 1 times [2022-11-18 20:58:43,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:43,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270546452] [2022-11-18 20:58:43,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:43,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:43,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:58:43,878 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 20:58:43,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:58:43,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270546452] [2022-11-18 20:58:43,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270546452] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:58:43,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:58:43,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:58:43,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905304563] [2022-11-18 20:58:43,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:58:43,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:58:43,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:58:43,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:58:43,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:58:43,882 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 103 [2022-11-18 20:58:43,883 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 223 transitions, 1254 flow. Second operand has 6 states, 6 states have (on average 64.33333333333333) internal successors, (386), 6 states have internal predecessors, (386), 0 states have call successors, (0), 0 states 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 20:58:43,883 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:58:43,883 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 103 [2022-11-18 20:58:43,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:58:45,009 INFO L130 PetriNetUnfolder]: 872/2760 cut-off events. [2022-11-18 20:58:45,010 INFO L131 PetriNetUnfolder]: For 2483/2483 co-relation queries the response was YES. [2022-11-18 20:58:45,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7509 conditions, 2760 events. 872/2760 cut-off events. For 2483/2483 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 22015 event pairs, 305 based on Foata normal form. 0/2666 useless extension candidates. Maximal degree in co-relation 7478. Up to 1296 conditions per place. [2022-11-18 20:58:45,032 INFO L137 encePairwiseOnDemand]: 88/103 looper letters, 153 selfloop transitions, 72 changer transitions 45/361 dead transitions. [2022-11-18 20:58:45,032 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 361 transitions, 2510 flow [2022-11-18 20:58:45,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:58:45,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:58:45,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 487 transitions. [2022-11-18 20:58:45,035 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7880258899676376 [2022-11-18 20:58:45,035 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 487 transitions. [2022-11-18 20:58:45,035 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 487 transitions. [2022-11-18 20:58:45,035 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:58:45,036 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 487 transitions. [2022-11-18 20:58:45,037 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 81.16666666666667) internal successors, (487), 6 states have internal predecessors, (487), 0 states have call successors, (0), 0 states 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 20:58:45,039 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states 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 20:58:45,039 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states 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 20:58:45,039 INFO L175 Difference]: Start difference. First operand has 173 places, 223 transitions, 1254 flow. Second operand 6 states and 487 transitions. [2022-11-18 20:58:45,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 361 transitions, 2510 flow [2022-11-18 20:58:45,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 361 transitions, 2508 flow, removed 1 selfloop flow, removed 0 redundant places. [2022-11-18 20:58:45,068 INFO L231 Difference]: Finished difference. Result has 182 places, 265 transitions, 1792 flow [2022-11-18 20:58:45,069 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=1252, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1792, PETRI_PLACES=182, PETRI_TRANSITIONS=265} [2022-11-18 20:58:45,070 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 80 predicate places. [2022-11-18 20:58:45,070 INFO L495 AbstractCegarLoop]: Abstraction has has 182 places, 265 transitions, 1792 flow [2022-11-18 20:58:45,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.33333333333333) internal successors, (386), 6 states have internal predecessors, (386), 0 states have call successors, (0), 0 states 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 20:58:45,070 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:58:45,071 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:58:45,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:58:45,071 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 20:58:45,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:45,072 INFO L85 PathProgramCache]: Analyzing trace with hash 255639728, now seen corresponding path program 1 times [2022-11-18 20:58:45,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:45,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431210723] [2022-11-18 20:58:45,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:45,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:45,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:58:46,391 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 20:58:46,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:58:46,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431210723] [2022-11-18 20:58:46,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431210723] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:58:46,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:58:46,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 20:58:46,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124487500] [2022-11-18 20:58:46,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:58:46,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 20:58:46,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:58:46,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 20:58:46,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:58:46,394 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 103 [2022-11-18 20:58:46,395 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 265 transitions, 1792 flow. Second operand has 11 states, 11 states have (on average 58.45454545454545) internal successors, (643), 11 states have internal predecessors, (643), 0 states have call successors, (0), 0 states 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 20:58:46,396 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:58:46,396 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 103 [2022-11-18 20:58:46,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:58:49,420 INFO L130 PetriNetUnfolder]: 1800/5584 cut-off events. [2022-11-18 20:58:49,420 INFO L131 PetriNetUnfolder]: For 9390/9441 co-relation queries the response was YES. [2022-11-18 20:58:49,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17942 conditions, 5584 events. 1800/5584 cut-off events. For 9390/9441 co-relation queries the response was YES. Maximal size of possible extension queue 341. Compared 52665 event pairs, 315 based on Foata normal form. 103/5679 useless extension candidates. Maximal degree in co-relation 17906. Up to 1565 conditions per place. [2022-11-18 20:58:49,487 INFO L137 encePairwiseOnDemand]: 83/103 looper letters, 432 selfloop transitions, 70 changer transitions 169/757 dead transitions. [2022-11-18 20:58:49,487 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 757 transitions, 6775 flow [2022-11-18 20:58:49,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 20:58:49,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-11-18 20:58:49,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1204 transitions. [2022-11-18 20:58:49,494 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6876070816676185 [2022-11-18 20:58:49,494 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1204 transitions. [2022-11-18 20:58:49,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1204 transitions. [2022-11-18 20:58:49,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:58:49,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1204 transitions. [2022-11-18 20:58:49,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 70.82352941176471) internal successors, (1204), 17 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states 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 20:58:49,572 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 103.0) internal successors, (1854), 18 states have internal predecessors, (1854), 0 states have call successors, (0), 0 states 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 20:58:49,573 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 103.0) internal successors, (1854), 18 states have internal predecessors, (1854), 0 states have call successors, (0), 0 states 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 20:58:49,574 INFO L175 Difference]: Start difference. First operand has 182 places, 265 transitions, 1792 flow. Second operand 17 states and 1204 transitions. [2022-11-18 20:58:49,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 757 transitions, 6775 flow [2022-11-18 20:58:49,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 757 transitions, 6701 flow, removed 37 selfloop flow, removed 0 redundant places. [2022-11-18 20:58:49,725 INFO L231 Difference]: Finished difference. Result has 213 places, 331 transitions, 2783 flow [2022-11-18 20:58:49,726 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=1764, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=265, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=2783, PETRI_PLACES=213, PETRI_TRANSITIONS=331} [2022-11-18 20:58:49,729 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 111 predicate places. [2022-11-18 20:58:49,729 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 331 transitions, 2783 flow [2022-11-18 20:58:49,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 58.45454545454545) internal successors, (643), 11 states have internal predecessors, (643), 0 states have call successors, (0), 0 states 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 20:58:49,730 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:58:49,730 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:58:49,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 20:58:49,731 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 20:58:49,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:49,732 INFO L85 PathProgramCache]: Analyzing trace with hash -571334816, now seen corresponding path program 2 times [2022-11-18 20:58:49,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:49,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284935702] [2022-11-18 20:58:49,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:49,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:49,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:58:51,083 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 20:58:51,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:58:51,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284935702] [2022-11-18 20:58:51,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284935702] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:58:51,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:58:51,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 20:58:51,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583605107] [2022-11-18 20:58:51,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:58:51,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:58:51,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:58:51,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:58:51,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:58:51,086 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 103 [2022-11-18 20:58:51,087 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 331 transitions, 2783 flow. Second operand has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 20:58:51,087 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:58:51,087 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 103 [2022-11-18 20:58:51,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:58:55,286 INFO L130 PetriNetUnfolder]: 2723/8497 cut-off events. [2022-11-18 20:58:55,286 INFO L131 PetriNetUnfolder]: For 25513/25598 co-relation queries the response was YES. [2022-11-18 20:58:55,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31683 conditions, 8497 events. 2723/8497 cut-off events. For 25513/25598 co-relation queries the response was YES. Maximal size of possible extension queue 510. Compared 86966 event pairs, 516 based on Foata normal form. 112/8593 useless extension candidates. Maximal degree in co-relation 31632. Up to 2447 conditions per place. [2022-11-18 20:58:55,403 INFO L137 encePairwiseOnDemand]: 82/103 looper letters, 452 selfloop transitions, 128 changer transitions 107/773 dead transitions. [2022-11-18 20:58:55,403 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 773 transitions, 7965 flow [2022-11-18 20:58:55,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 20:58:55,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-18 20:58:55,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 952 transitions. [2022-11-18 20:58:55,407 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7109783420463032 [2022-11-18 20:58:55,408 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 952 transitions. [2022-11-18 20:58:55,408 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 952 transitions. [2022-11-18 20:58:55,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:58:55,409 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 952 transitions. [2022-11-18 20:58:55,413 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 73.23076923076923) internal successors, (952), 13 states have internal predecessors, (952), 0 states have call successors, (0), 0 states 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 20:58:55,417 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 103.0) internal successors, (1442), 14 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states 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 20:58:55,418 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 103.0) internal successors, (1442), 14 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states 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 20:58:55,418 INFO L175 Difference]: Start difference. First operand has 213 places, 331 transitions, 2783 flow. Second operand 13 states and 952 transitions. [2022-11-18 20:58:55,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 773 transitions, 7965 flow [2022-11-18 20:58:55,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 773 transitions, 7875 flow, removed 39 selfloop flow, removed 6 redundant places. [2022-11-18 20:58:55,734 INFO L231 Difference]: Finished difference. Result has 223 places, 414 transitions, 4395 flow [2022-11-18 20:58:55,734 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=2758, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=331, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4395, PETRI_PLACES=223, PETRI_TRANSITIONS=414} [2022-11-18 20:58:55,735 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 121 predicate places. [2022-11-18 20:58:55,735 INFO L495 AbstractCegarLoop]: Abstraction has has 223 places, 414 transitions, 4395 flow [2022-11-18 20:58:55,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 20:58:55,736 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:58:55,737 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:58:55,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 20:58:55,737 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 20:58:55,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:55,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1298137290, now seen corresponding path program 3 times [2022-11-18 20:58:55,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:55,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213799409] [2022-11-18 20:58:55,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:55,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:55,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:58:57,242 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 20:58:57,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:58:57,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213799409] [2022-11-18 20:58:57,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213799409] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:58:57,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:58:57,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 20:58:57,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059799217] [2022-11-18 20:58:57,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:58:57,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:58:57,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:58:57,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:58:57,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:58:57,246 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 103 [2022-11-18 20:58:57,247 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 414 transitions, 4395 flow. Second operand has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 20:58:57,247 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:58:57,247 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 103 [2022-11-18 20:58:57,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:59:01,483 INFO L130 PetriNetUnfolder]: 2687/8242 cut-off events. [2022-11-18 20:59:01,484 INFO L131 PetriNetUnfolder]: For 35778/35860 co-relation queries the response was YES. [2022-11-18 20:59:01,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34007 conditions, 8242 events. 2687/8242 cut-off events. For 35778/35860 co-relation queries the response was YES. Maximal size of possible extension queue 510. Compared 83867 event pairs, 531 based on Foata normal form. 92/8318 useless extension candidates. Maximal degree in co-relation 33952. Up to 2213 conditions per place. [2022-11-18 20:59:01,561 INFO L137 encePairwiseOnDemand]: 83/103 looper letters, 396 selfloop transitions, 178 changer transitions 69/729 dead transitions. [2022-11-18 20:59:01,562 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 729 transitions, 8239 flow [2022-11-18 20:59:01,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 20:59:01,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-18 20:59:01,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 816 transitions. [2022-11-18 20:59:01,564 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7202118270079435 [2022-11-18 20:59:01,565 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 816 transitions. [2022-11-18 20:59:01,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 816 transitions. [2022-11-18 20:59:01,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:59:01,566 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 816 transitions. [2022-11-18 20:59:01,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 74.18181818181819) internal successors, (816), 11 states have internal predecessors, (816), 0 states have call successors, (0), 0 states 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 20:59:01,570 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 20:59:01,571 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 20:59:01,571 INFO L175 Difference]: Start difference. First operand has 223 places, 414 transitions, 4395 flow. Second operand 11 states and 816 transitions. [2022-11-18 20:59:01,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 729 transitions, 8239 flow [2022-11-18 20:59:02,021 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 729 transitions, 8221 flow, removed 9 selfloop flow, removed 1 redundant places. [2022-11-18 20:59:02,038 INFO L231 Difference]: Finished difference. Result has 238 places, 453 transitions, 5515 flow [2022-11-18 20:59:02,038 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=4377, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=139, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=5515, PETRI_PLACES=238, PETRI_TRANSITIONS=453} [2022-11-18 20:59:02,039 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 136 predicate places. [2022-11-18 20:59:02,039 INFO L495 AbstractCegarLoop]: Abstraction has has 238 places, 453 transitions, 5515 flow [2022-11-18 20:59:02,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 20:59:02,040 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:59:02,040 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:59:02,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 20:59:02,041 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 20:59:02,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:02,042 INFO L85 PathProgramCache]: Analyzing trace with hash 365125482, now seen corresponding path program 4 times [2022-11-18 20:59:02,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:02,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362004207] [2022-11-18 20:59:02,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:02,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:02,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:03,227 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 20:59:03,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:03,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362004207] [2022-11-18 20:59:03,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362004207] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:03,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:59:03,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 20:59:03,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595592953] [2022-11-18 20:59:03,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:03,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:59:03,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:03,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:59:03,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:59:03,232 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 103 [2022-11-18 20:59:03,233 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 453 transitions, 5515 flow. Second operand has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 20:59:03,233 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:59:03,233 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 103 [2022-11-18 20:59:03,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:59:07,790 INFO L130 PetriNetUnfolder]: 2893/8736 cut-off events. [2022-11-18 20:59:07,790 INFO L131 PetriNetUnfolder]: For 56792/56885 co-relation queries the response was YES. [2022-11-18 20:59:07,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40273 conditions, 8736 events. 2893/8736 cut-off events. For 56792/56885 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 89308 event pairs, 618 based on Foata normal form. 118/8837 useless extension candidates. Maximal degree in co-relation 40210. Up to 2198 conditions per place. [2022-11-18 20:59:07,885 INFO L137 encePairwiseOnDemand]: 84/103 looper letters, 635 selfloop transitions, 112 changer transitions 73/906 dead transitions. [2022-11-18 20:59:07,885 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 906 transitions, 11199 flow [2022-11-18 20:59:07,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 20:59:07,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-18 20:59:07,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 913 transitions. [2022-11-18 20:59:07,889 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.738673139158576 [2022-11-18 20:59:07,889 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 913 transitions. [2022-11-18 20:59:07,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 913 transitions. [2022-11-18 20:59:07,890 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:59:07,891 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 913 transitions. [2022-11-18 20:59:07,893 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 76.08333333333333) internal successors, (913), 12 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 20:59:07,896 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 20:59:07,897 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 20:59:07,898 INFO L175 Difference]: Start difference. First operand has 238 places, 453 transitions, 5515 flow. Second operand 12 states and 913 transitions. [2022-11-18 20:59:07,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 906 transitions, 11199 flow [2022-11-18 20:59:08,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 906 transitions, 11076 flow, removed 51 selfloop flow, removed 4 redundant places. [2022-11-18 20:59:08,709 INFO L231 Difference]: Finished difference. Result has 250 places, 485 transitions, 6367 flow [2022-11-18 20:59:08,710 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=5444, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=453, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=81, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=345, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=6367, PETRI_PLACES=250, PETRI_TRANSITIONS=485} [2022-11-18 20:59:08,711 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 148 predicate places. [2022-11-18 20:59:08,711 INFO L495 AbstractCegarLoop]: Abstraction has has 250 places, 485 transitions, 6367 flow [2022-11-18 20:59:08,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 20:59:08,712 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:59:08,712 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:59:08,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 20:59:08,712 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 20:59:08,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:08,713 INFO L85 PathProgramCache]: Analyzing trace with hash 317764832, now seen corresponding path program 5 times [2022-11-18 20:59:08,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:08,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294979953] [2022-11-18 20:59:08,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:08,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:08,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:09,726 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 20:59:09,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:09,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294979953] [2022-11-18 20:59:09,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294979953] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:09,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:59:09,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 20:59:09,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410251092] [2022-11-18 20:59:09,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:09,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:59:09,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:09,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:59:09,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:59:09,730 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 103 [2022-11-18 20:59:09,731 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 485 transitions, 6367 flow. Second operand has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 20:59:09,731 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:59:09,731 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 103 [2022-11-18 20:59:09,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:59:14,169 INFO L130 PetriNetUnfolder]: 2948/8983 cut-off events. [2022-11-18 20:59:14,169 INFO L131 PetriNetUnfolder]: For 69655/69749 co-relation queries the response was YES. [2022-11-18 20:59:14,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43137 conditions, 8983 events. 2948/8983 cut-off events. For 69655/69749 co-relation queries the response was YES. Maximal size of possible extension queue 556. Compared 92874 event pairs, 598 based on Foata normal form. 112/9079 useless extension candidates. Maximal degree in co-relation 43068. Up to 2208 conditions per place. [2022-11-18 20:59:14,274 INFO L137 encePairwiseOnDemand]: 84/103 looper letters, 405 selfloop transitions, 199 changer transitions 55/745 dead transitions. [2022-11-18 20:59:14,275 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 745 transitions, 9756 flow [2022-11-18 20:59:14,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 20:59:14,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-18 20:59:14,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 815 transitions. [2022-11-18 20:59:14,277 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7193292144748455 [2022-11-18 20:59:14,278 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 815 transitions. [2022-11-18 20:59:14,278 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 815 transitions. [2022-11-18 20:59:14,278 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:59:14,279 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 815 transitions. [2022-11-18 20:59:14,281 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 74.0909090909091) internal successors, (815), 11 states have internal predecessors, (815), 0 states have call successors, (0), 0 states 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 20:59:14,283 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 20:59:14,284 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 20:59:14,284 INFO L175 Difference]: Start difference. First operand has 250 places, 485 transitions, 6367 flow. Second operand 11 states and 815 transitions. [2022-11-18 20:59:14,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 745 transitions, 9756 flow [2022-11-18 20:59:15,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 745 transitions, 9597 flow, removed 47 selfloop flow, removed 3 redundant places. [2022-11-18 20:59:15,214 INFO L231 Difference]: Finished difference. Result has 261 places, 492 transitions, 6830 flow [2022-11-18 20:59:15,214 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=6211, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=485, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=192, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=6830, PETRI_PLACES=261, PETRI_TRANSITIONS=492} [2022-11-18 20:59:15,215 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 159 predicate places. [2022-11-18 20:59:15,215 INFO L495 AbstractCegarLoop]: Abstraction has has 261 places, 492 transitions, 6830 flow [2022-11-18 20:59:15,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 20:59:15,215 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:59:15,215 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:59:15,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 20:59:15,216 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 20:59:15,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:15,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1868223966, now seen corresponding path program 1 times [2022-11-18 20:59:15,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:15,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923798102] [2022-11-18 20:59:15,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:15,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:15,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:16,277 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 20:59:16,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:16,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923798102] [2022-11-18 20:59:16,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923798102] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:16,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:59:16,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 20:59:16,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851914173] [2022-11-18 20:59:16,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:16,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:59:16,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:16,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:59:16,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:59:16,282 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2022-11-18 20:59:16,283 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 492 transitions, 6830 flow. Second operand has 10 states, 10 states have (on average 60.6) internal successors, (606), 10 states have internal predecessors, (606), 0 states have call successors, (0), 0 states 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 20:59:16,283 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:59:16,283 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2022-11-18 20:59:16,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:59:20,275 INFO L130 PetriNetUnfolder]: 2533/8231 cut-off events. [2022-11-18 20:59:20,276 INFO L131 PetriNetUnfolder]: For 71811/71827 co-relation queries the response was YES. [2022-11-18 20:59:20,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40600 conditions, 8231 events. 2533/8231 cut-off events. For 71811/71827 co-relation queries the response was YES. Maximal size of possible extension queue 522. Compared 86039 event pairs, 451 based on Foata normal form. 65/8269 useless extension candidates. Maximal degree in co-relation 40527. Up to 1789 conditions per place. [2022-11-18 20:59:20,352 INFO L137 encePairwiseOnDemand]: 86/103 looper letters, 604 selfloop transitions, 94 changer transitions 70/871 dead transitions. [2022-11-18 20:59:20,353 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 871 transitions, 12768 flow [2022-11-18 20:59:20,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 20:59:20,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-18 20:59:20,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 845 transitions. [2022-11-18 20:59:20,361 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7458075904677847 [2022-11-18 20:59:20,362 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 845 transitions. [2022-11-18 20:59:20,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 845 transitions. [2022-11-18 20:59:20,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:59:20,363 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 845 transitions. [2022-11-18 20:59:20,376 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 76.81818181818181) internal successors, (845), 11 states have internal predecessors, (845), 0 states have call successors, (0), 0 states 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 20:59:20,380 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 20:59:20,380 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 20:59:20,381 INFO L175 Difference]: Start difference. First operand has 261 places, 492 transitions, 6830 flow. Second operand 11 states and 845 transitions. [2022-11-18 20:59:20,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 871 transitions, 12768 flow [2022-11-18 20:59:21,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 871 transitions, 12365 flow, removed 7 selfloop flow, removed 5 redundant places. [2022-11-18 20:59:21,142 INFO L231 Difference]: Finished difference. Result has 273 places, 548 transitions, 7467 flow [2022-11-18 20:59:21,142 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=6533, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=492, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=7467, PETRI_PLACES=273, PETRI_TRANSITIONS=548} [2022-11-18 20:59:21,143 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 171 predicate places. [2022-11-18 20:59:21,143 INFO L495 AbstractCegarLoop]: Abstraction has has 273 places, 548 transitions, 7467 flow [2022-11-18 20:59:21,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.6) internal successors, (606), 10 states have internal predecessors, (606), 0 states have call successors, (0), 0 states 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 20:59:21,143 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:59:21,144 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:59:21,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 20:59:21,144 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 20:59:21,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:21,144 INFO L85 PathProgramCache]: Analyzing trace with hash 2118977280, now seen corresponding path program 6 times [2022-11-18 20:59:21,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:21,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770922310] [2022-11-18 20:59:21,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:21,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:21,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:22,482 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 20:59:22,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:22,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770922310] [2022-11-18 20:59:22,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770922310] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:22,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:59:22,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 20:59:22,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335517085] [2022-11-18 20:59:22,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:22,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:59:22,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:22,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:59:22,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:59:22,485 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 103 [2022-11-18 20:59:22,486 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 548 transitions, 7467 flow. Second operand has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 20:59:22,486 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:59:22,486 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 103 [2022-11-18 20:59:22,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:59:27,081 INFO L130 PetriNetUnfolder]: 2897/9010 cut-off events. [2022-11-18 20:59:27,081 INFO L131 PetriNetUnfolder]: For 80862/80944 co-relation queries the response was YES. [2022-11-18 20:59:27,147 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45170 conditions, 9010 events. 2897/9010 cut-off events. For 80862/80944 co-relation queries the response was YES. Maximal size of possible extension queue 533. Compared 93852 event pairs, 688 based on Foata normal form. 92/9086 useless extension candidates. Maximal degree in co-relation 45089. Up to 2195 conditions per place. [2022-11-18 20:59:27,171 INFO L137 encePairwiseOnDemand]: 84/103 looper letters, 504 selfloop transitions, 189 changer transitions 89/868 dead transitions. [2022-11-18 20:59:27,171 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 868 transitions, 12139 flow [2022-11-18 20:59:27,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 20:59:27,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-18 20:59:27,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 891 transitions. [2022-11-18 20:59:27,174 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.720873786407767 [2022-11-18 20:59:27,174 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 891 transitions. [2022-11-18 20:59:27,174 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 891 transitions. [2022-11-18 20:59:27,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:59:27,175 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 891 transitions. [2022-11-18 20:59:27,177 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 74.25) internal successors, (891), 12 states have internal predecessors, (891), 0 states have call successors, (0), 0 states 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 20:59:27,179 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 20:59:27,180 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 20:59:27,180 INFO L175 Difference]: Start difference. First operand has 273 places, 548 transitions, 7467 flow. Second operand 12 states and 891 transitions. [2022-11-18 20:59:27,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 868 transitions, 12139 flow [2022-11-18 20:59:27,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 284 places, 868 transitions, 12069 flow, removed 35 selfloop flow, removed 0 redundant places. [2022-11-18 20:59:27,895 INFO L231 Difference]: Finished difference. Result has 289 places, 565 transitions, 8267 flow [2022-11-18 20:59:27,896 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=7399, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=548, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=171, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=366, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=8267, PETRI_PLACES=289, PETRI_TRANSITIONS=565} [2022-11-18 20:59:27,896 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 187 predicate places. [2022-11-18 20:59:27,896 INFO L495 AbstractCegarLoop]: Abstraction has has 289 places, 565 transitions, 8267 flow [2022-11-18 20:59:27,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 20:59:27,897 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:59:27,897 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:59:27,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 20:59:27,898 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 20:59:27,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:27,898 INFO L85 PathProgramCache]: Analyzing trace with hash 936574402, now seen corresponding path program 7 times [2022-11-18 20:59:27,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:27,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630583491] [2022-11-18 20:59:27,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:27,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:27,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:29,062 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 20:59:29,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:29,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630583491] [2022-11-18 20:59:29,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630583491] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:29,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:59:29,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 20:59:29,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334667702] [2022-11-18 20:59:29,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:29,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:59:29,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:29,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:59:29,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:59:29,065 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 103 [2022-11-18 20:59:29,066 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 565 transitions, 8267 flow. Second operand has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 20:59:29,066 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:59:29,066 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 103 [2022-11-18 20:59:29,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:59:33,313 INFO L130 PetriNetUnfolder]: 2884/8919 cut-off events. [2022-11-18 20:59:33,313 INFO L131 PetriNetUnfolder]: For 91799/91881 co-relation queries the response was YES. [2022-11-18 20:59:33,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46984 conditions, 8919 events. 2884/8919 cut-off events. For 91799/91881 co-relation queries the response was YES. Maximal size of possible extension queue 529. Compared 92558 event pairs, 607 based on Foata normal form. 91/8990 useless extension candidates. Maximal degree in co-relation 46897. Up to 2197 conditions per place. [2022-11-18 20:59:33,407 INFO L137 encePairwiseOnDemand]: 84/103 looper letters, 599 selfloop transitions, 157 changer transitions 77/919 dead transitions. [2022-11-18 20:59:33,407 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 919 transitions, 13405 flow [2022-11-18 20:59:33,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 20:59:33,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-18 20:59:33,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 899 transitions. [2022-11-18 20:59:33,410 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7273462783171522 [2022-11-18 20:59:33,410 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 899 transitions. [2022-11-18 20:59:33,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 899 transitions. [2022-11-18 20:59:33,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:59:33,411 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 899 transitions. [2022-11-18 20:59:33,413 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 74.91666666666667) internal successors, (899), 12 states have internal predecessors, (899), 0 states have call successors, (0), 0 states 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 20:59:33,415 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 20:59:33,415 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 20:59:33,415 INFO L175 Difference]: Start difference. First operand has 289 places, 565 transitions, 8267 flow. Second operand 12 states and 899 transitions. [2022-11-18 20:59:33,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 919 transitions, 13405 flow [2022-11-18 20:59:34,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 919 transitions, 13081 flow, removed 42 selfloop flow, removed 5 redundant places. [2022-11-18 20:59:34,351 INFO L231 Difference]: Finished difference. Result has 299 places, 576 transitions, 8700 flow [2022-11-18 20:59:34,352 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=7962, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=565, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=146, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=8700, PETRI_PLACES=299, PETRI_TRANSITIONS=576} [2022-11-18 20:59:34,352 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 197 predicate places. [2022-11-18 20:59:34,352 INFO L495 AbstractCegarLoop]: Abstraction has has 299 places, 576 transitions, 8700 flow [2022-11-18 20:59:34,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 20:59:34,352 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:59:34,353 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:59:34,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-18 20:59:34,353 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 20:59:34,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:34,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1901897764, now seen corresponding path program 8 times [2022-11-18 20:59:34,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:34,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973383656] [2022-11-18 20:59:34,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:34,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:34,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:35,284 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 20:59:35,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:35,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973383656] [2022-11-18 20:59:35,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973383656] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:35,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:59:35,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 20:59:35,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332565790] [2022-11-18 20:59:35,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:35,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:59:35,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:35,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:59:35,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:59:35,288 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 103 [2022-11-18 20:59:35,288 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 576 transitions, 8700 flow. Second operand has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 20:59:35,289 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:59:35,289 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 103 [2022-11-18 20:59:35,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:59:39,604 INFO L130 PetriNetUnfolder]: 2939/9149 cut-off events. [2022-11-18 20:59:39,604 INFO L131 PetriNetUnfolder]: For 108489/108573 co-relation queries the response was YES. [2022-11-18 20:59:39,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49316 conditions, 9149 events. 2939/9149 cut-off events. For 108489/108573 co-relation queries the response was YES. Maximal size of possible extension queue 538. Compared 95613 event pairs, 742 based on Foata normal form. 111/9246 useless extension candidates. Maximal degree in co-relation 49225. Up to 2178 conditions per place. [2022-11-18 20:59:39,702 INFO L137 encePairwiseOnDemand]: 84/103 looper letters, 569 selfloop transitions, 152 changer transitions 95/902 dead transitions. [2022-11-18 20:59:39,702 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 902 transitions, 13938 flow [2022-11-18 20:59:39,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 20:59:39,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-18 20:59:39,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 811 transitions. [2022-11-18 20:59:39,704 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7157987643424537 [2022-11-18 20:59:39,704 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 811 transitions. [2022-11-18 20:59:39,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 811 transitions. [2022-11-18 20:59:39,705 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:59:39,705 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 811 transitions. [2022-11-18 20:59:39,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 73.72727272727273) internal successors, (811), 11 states have internal predecessors, (811), 0 states have call successors, (0), 0 states 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 20:59:39,708 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 20:59:39,709 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 20:59:39,709 INFO L175 Difference]: Start difference. First operand has 299 places, 576 transitions, 8700 flow. Second operand 11 states and 811 transitions. [2022-11-18 20:59:39,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 902 transitions, 13938 flow [2022-11-18 20:59:40,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 902 transitions, 13715 flow, removed 24 selfloop flow, removed 7 redundant places. [2022-11-18 20:59:40,712 INFO L231 Difference]: Finished difference. Result has 308 places, 600 transitions, 9588 flow [2022-11-18 20:59:40,713 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=8493, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=576, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=127, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=427, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=9588, PETRI_PLACES=308, PETRI_TRANSITIONS=600} [2022-11-18 20:59:40,714 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 206 predicate places. [2022-11-18 20:59:40,714 INFO L495 AbstractCegarLoop]: Abstraction has has 308 places, 600 transitions, 9588 flow [2022-11-18 20:59:40,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 20:59:40,715 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:59:40,715 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:59:40,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-18 20:59:40,716 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 20:59:40,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:40,716 INFO L85 PathProgramCache]: Analyzing trace with hash 355626568, now seen corresponding path program 9 times [2022-11-18 20:59:40,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:40,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685455782] [2022-11-18 20:59:40,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:40,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:40,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:41,544 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 20:59:41,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:41,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685455782] [2022-11-18 20:59:41,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685455782] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:41,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:59:41,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 20:59:41,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009275156] [2022-11-18 20:59:41,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:41,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:59:41,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:41,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:59:41,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:59:41,547 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 103 [2022-11-18 20:59:41,548 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 600 transitions, 9588 flow. Second operand has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 20:59:41,548 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:59:41,548 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 103 [2022-11-18 20:59:41,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:59:46,104 INFO L130 PetriNetUnfolder]: 2964/9215 cut-off events. [2022-11-18 20:59:46,105 INFO L131 PetriNetUnfolder]: For 121310/121397 co-relation queries the response was YES. [2022-11-18 20:59:46,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51393 conditions, 9215 events. 2964/9215 cut-off events. For 121310/121397 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 96627 event pairs, 637 based on Foata normal form. 110/9307 useless extension candidates. Maximal degree in co-relation 51297. Up to 2189 conditions per place. [2022-11-18 20:59:46,381 INFO L137 encePairwiseOnDemand]: 84/103 looper letters, 621 selfloop transitions, 143 changer transitions 90/940 dead transitions. [2022-11-18 20:59:46,382 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 940 transitions, 14606 flow [2022-11-18 20:59:46,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 20:59:46,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-18 20:59:46,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 902 transitions. [2022-11-18 20:59:46,384 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7297734627831716 [2022-11-18 20:59:46,384 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 902 transitions. [2022-11-18 20:59:46,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 902 transitions. [2022-11-18 20:59:46,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:59:46,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 902 transitions. [2022-11-18 20:59:46,387 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 75.16666666666667) internal successors, (902), 12 states have internal predecessors, (902), 0 states have call successors, (0), 0 states 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 20:59:46,389 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 20:59:46,389 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 20:59:46,390 INFO L175 Difference]: Start difference. First operand has 308 places, 600 transitions, 9588 flow. Second operand 12 states and 902 transitions. [2022-11-18 20:59:46,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 940 transitions, 14606 flow [2022-11-18 20:59:47,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 940 transitions, 14403 flow, removed 73 selfloop flow, removed 2 redundant places. [2022-11-18 20:59:47,275 INFO L231 Difference]: Finished difference. Result has 322 places, 607 transitions, 9976 flow [2022-11-18 20:59:47,275 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=9390, PETRI_DIFFERENCE_MINUEND_PLACES=306, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=600, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=135, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=459, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=9976, PETRI_PLACES=322, PETRI_TRANSITIONS=607} [2022-11-18 20:59:47,276 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 220 predicate places. [2022-11-18 20:59:47,276 INFO L495 AbstractCegarLoop]: Abstraction has has 322 places, 607 transitions, 9976 flow [2022-11-18 20:59:47,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 20:59:47,277 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:59:47,277 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:59:47,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-18 20:59:47,277 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 20:59:47,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:47,278 INFO L85 PathProgramCache]: Analyzing trace with hash -223758818, now seen corresponding path program 10 times [2022-11-18 20:59:47,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:47,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427379264] [2022-11-18 20:59:47,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:47,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:47,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:48,283 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 20:59:48,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:48,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427379264] [2022-11-18 20:59:48,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427379264] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:48,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:59:48,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 20:59:48,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269128889] [2022-11-18 20:59:48,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:48,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:59:48,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:48,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:59:48,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:59:48,286 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 103 [2022-11-18 20:59:48,286 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 607 transitions, 9976 flow. Second operand has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 20:59:48,286 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:59:48,287 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 103 [2022-11-18 20:59:48,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:59:52,510 INFO L130 PetriNetUnfolder]: 2943/9191 cut-off events. [2022-11-18 20:59:52,510 INFO L131 PetriNetUnfolder]: For 133608/133696 co-relation queries the response was YES. [2022-11-18 20:59:52,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52285 conditions, 9191 events. 2943/9191 cut-off events. For 133608/133696 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 96540 event pairs, 610 based on Foata normal form. 105/9275 useless extension candidates. Maximal degree in co-relation 52184. Up to 2188 conditions per place. [2022-11-18 20:59:52,590 INFO L137 encePairwiseOnDemand]: 84/103 looper letters, 595 selfloop transitions, 158 changer transitions 88/927 dead transitions. [2022-11-18 20:59:52,590 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 927 transitions, 14610 flow [2022-11-18 20:59:52,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 20:59:52,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-18 20:59:52,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 897 transitions. [2022-11-18 20:59:52,592 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7257281553398058 [2022-11-18 20:59:52,592 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 897 transitions. [2022-11-18 20:59:52,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 897 transitions. [2022-11-18 20:59:52,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:59:52,593 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 897 transitions. [2022-11-18 20:59:52,595 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 74.75) internal successors, (897), 12 states have internal predecessors, (897), 0 states have call successors, (0), 0 states 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 20:59:52,596 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 20:59:52,597 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 20:59:52,597 INFO L175 Difference]: Start difference. First operand has 322 places, 607 transitions, 9976 flow. Second operand 12 states and 897 transitions. [2022-11-18 20:59:52,597 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 927 transitions, 14610 flow [2022-11-18 20:59:53,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 927 transitions, 14445 flow, removed 28 selfloop flow, removed 4 redundant places. [2022-11-18 20:59:53,600 INFO L231 Difference]: Finished difference. Result has 332 places, 604 transitions, 10121 flow [2022-11-18 20:59:53,601 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=9813, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=607, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=156, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=450, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=10121, PETRI_PLACES=332, PETRI_TRANSITIONS=604} [2022-11-18 20:59:53,601 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 230 predicate places. [2022-11-18 20:59:53,602 INFO L495 AbstractCegarLoop]: Abstraction has has 332 places, 604 transitions, 10121 flow [2022-11-18 20:59:53,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 20:59:53,602 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:59:53,602 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:59:53,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-18 20:59:53,603 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 20:59:53,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:53,604 INFO L85 PathProgramCache]: Analyzing trace with hash -2086487770, now seen corresponding path program 11 times [2022-11-18 20:59:53,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:53,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696768881] [2022-11-18 20:59:53,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:53,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:53,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:54,696 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 20:59:54,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:54,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696768881] [2022-11-18 20:59:54,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696768881] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:54,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:59:54,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 20:59:54,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809552403] [2022-11-18 20:59:54,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:54,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:59:54,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:54,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:59:54,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:59:54,699 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 103 [2022-11-18 20:59:54,700 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 604 transitions, 10121 flow. Second operand has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 20:59:54,700 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:59:54,700 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 103 [2022-11-18 20:59:54,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:59:59,040 INFO L130 PetriNetUnfolder]: 2899/9122 cut-off events. [2022-11-18 20:59:59,040 INFO L131 PetriNetUnfolder]: For 140852/140937 co-relation queries the response was YES. [2022-11-18 20:59:59,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52163 conditions, 9122 events. 2899/9122 cut-off events. For 140852/140937 co-relation queries the response was YES. Maximal size of possible extension queue 537. Compared 95945 event pairs, 603 based on Foata normal form. 96/9204 useless extension candidates. Maximal degree in co-relation 52059. Up to 2183 conditions per place. [2022-11-18 20:59:59,132 INFO L137 encePairwiseOnDemand]: 84/103 looper letters, 477 selfloop transitions, 242 changer transitions 82/887 dead transitions. [2022-11-18 20:59:59,132 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 887 transitions, 14270 flow [2022-11-18 20:59:59,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 20:59:59,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-18 20:59:59,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 871 transitions. [2022-11-18 20:59:59,134 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7046925566343042 [2022-11-18 20:59:59,135 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 871 transitions. [2022-11-18 20:59:59,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 871 transitions. [2022-11-18 20:59:59,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:59:59,135 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 871 transitions. [2022-11-18 20:59:59,137 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 72.58333333333333) internal successors, (871), 12 states have internal predecessors, (871), 0 states have call successors, (0), 0 states 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 20:59:59,138 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 20:59:59,139 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 20:59:59,139 INFO L175 Difference]: Start difference. First operand has 332 places, 604 transitions, 10121 flow. Second operand 12 states and 871 transitions. [2022-11-18 20:59:59,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 887 transitions, 14270 flow [2022-11-18 21:00:00,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 887 transitions, 13897 flow, removed 27 selfloop flow, removed 11 redundant places. [2022-11-18 21:00:00,166 INFO L231 Difference]: Finished difference. Result has 335 places, 603 transitions, 10232 flow [2022-11-18 21:00:00,166 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=9753, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=604, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=242, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=362, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=10232, PETRI_PLACES=335, PETRI_TRANSITIONS=603} [2022-11-18 21:00:00,167 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 233 predicate places. [2022-11-18 21:00:00,167 INFO L495 AbstractCegarLoop]: Abstraction has has 335 places, 603 transitions, 10232 flow [2022-11-18 21:00:00,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 21:00:00,167 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:00:00,168 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:00:00,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-18 21:00:00,168 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 21:00:00,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:00,169 INFO L85 PathProgramCache]: Analyzing trace with hash 636981442, now seen corresponding path program 12 times [2022-11-18 21:00:00,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:00,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491101236] [2022-11-18 21:00:00,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:00,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:00,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:00,915 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 21:00:00,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:00:00,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491101236] [2022-11-18 21:00:00,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491101236] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:00:00,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:00:00,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 21:00:00,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962376365] [2022-11-18 21:00:00,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:00:00,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 21:00:00,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:00:00,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 21:00:00,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-11-18 21:00:00,918 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 103 [2022-11-18 21:00:00,918 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 603 transitions, 10232 flow. Second operand has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 21:00:00,919 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:00:00,919 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 103 [2022-11-18 21:00:00,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:00:05,286 INFO L130 PetriNetUnfolder]: 2933/9255 cut-off events. [2022-11-18 21:00:05,286 INFO L131 PetriNetUnfolder]: For 153736/153823 co-relation queries the response was YES. [2022-11-18 21:00:05,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53321 conditions, 9255 events. 2933/9255 cut-off events. For 153736/153823 co-relation queries the response was YES. Maximal size of possible extension queue 544. Compared 97688 event pairs, 733 based on Foata normal form. 110/9351 useless extension candidates. Maximal degree in co-relation 53219. Up to 2178 conditions per place. [2022-11-18 21:00:05,385 INFO L137 encePairwiseOnDemand]: 84/103 looper letters, 577 selfloop transitions, 163 changer transitions 103/929 dead transitions. [2022-11-18 21:00:05,386 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 929 transitions, 15299 flow [2022-11-18 21:00:05,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 21:00:05,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-18 21:00:05,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 893 transitions. [2022-11-18 21:00:05,388 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7224919093851133 [2022-11-18 21:00:05,388 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 893 transitions. [2022-11-18 21:00:05,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 893 transitions. [2022-11-18 21:00:05,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:00:05,389 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 893 transitions. [2022-11-18 21:00:05,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 74.41666666666667) internal successors, (893), 12 states have internal predecessors, (893), 0 states have call successors, (0), 0 states 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 21:00:05,392 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 21:00:05,392 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 21:00:05,392 INFO L175 Difference]: Start difference. First operand has 335 places, 603 transitions, 10232 flow. Second operand 12 states and 893 transitions. [2022-11-18 21:00:05,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 929 transitions, 15299 flow [2022-11-18 21:00:06,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 929 transitions, 14870 flow, removed 6 selfloop flow, removed 11 redundant places. [2022-11-18 21:00:06,538 INFO L231 Difference]: Finished difference. Result has 340 places, 616 transitions, 10631 flow [2022-11-18 21:00:06,538 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=9829, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=603, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=149, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=442, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=10631, PETRI_PLACES=340, PETRI_TRANSITIONS=616} [2022-11-18 21:00:06,539 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 238 predicate places. [2022-11-18 21:00:06,539 INFO L495 AbstractCegarLoop]: Abstraction has has 340 places, 616 transitions, 10631 flow [2022-11-18 21:00:06,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 21:00:06,539 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:00:06,539 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:00:06,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-18 21:00:06,540 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 21:00:06,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:06,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1538029446, now seen corresponding path program 13 times [2022-11-18 21:00:06,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:06,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526943984] [2022-11-18 21:00:06,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:06,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:06,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:07,266 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 21:00:07,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:00:07,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526943984] [2022-11-18 21:00:07,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526943984] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:00:07,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:00:07,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 21:00:07,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96550432] [2022-11-18 21:00:07,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:00:07,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 21:00:07,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:00:07,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 21:00:07,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-11-18 21:00:07,269 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 103 [2022-11-18 21:00:07,269 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 616 transitions, 10631 flow. Second operand has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 21:00:07,270 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:00:07,270 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 103 [2022-11-18 21:00:07,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:00:11,613 INFO L130 PetriNetUnfolder]: 2946/9293 cut-off events. [2022-11-18 21:00:11,614 INFO L131 PetriNetUnfolder]: For 162072/162160 co-relation queries the response was YES. [2022-11-18 21:00:11,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53891 conditions, 9293 events. 2946/9293 cut-off events. For 162072/162160 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 98253 event pairs, 673 based on Foata normal form. 111/9390 useless extension candidates. Maximal degree in co-relation 53785. Up to 2175 conditions per place. [2022-11-18 21:00:11,731 INFO L137 encePairwiseOnDemand]: 84/103 looper letters, 519 selfloop transitions, 205 changer transitions 89/899 dead transitions. [2022-11-18 21:00:11,731 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 350 places, 899 transitions, 14914 flow [2022-11-18 21:00:11,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 21:00:11,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-18 21:00:11,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 813 transitions. [2022-11-18 21:00:11,733 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7175639894086496 [2022-11-18 21:00:11,734 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 813 transitions. [2022-11-18 21:00:11,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 813 transitions. [2022-11-18 21:00:11,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:00:11,734 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 813 transitions. [2022-11-18 21:00:11,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 73.9090909090909) internal successors, (813), 11 states have internal predecessors, (813), 0 states have call successors, (0), 0 states 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 21:00:11,738 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 21:00:11,739 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 21:00:11,739 INFO L175 Difference]: Start difference. First operand has 340 places, 616 transitions, 10631 flow. Second operand 11 states and 813 transitions. [2022-11-18 21:00:11,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 350 places, 899 transitions, 14914 flow [2022-11-18 21:00:13,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 899 transitions, 14534 flow, removed 59 selfloop flow, removed 5 redundant places. [2022-11-18 21:00:13,106 INFO L231 Difference]: Finished difference. Result has 349 places, 620 transitions, 10821 flow [2022-11-18 21:00:13,107 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=10263, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=616, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=200, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=411, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=10821, PETRI_PLACES=349, PETRI_TRANSITIONS=620} [2022-11-18 21:00:13,108 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 247 predicate places. [2022-11-18 21:00:13,108 INFO L495 AbstractCegarLoop]: Abstraction has has 349 places, 620 transitions, 10821 flow [2022-11-18 21:00:13,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 21:00:13,108 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:00:13,109 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:00:13,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-18 21:00:13,109 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 21:00:13,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:13,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1510876976, now seen corresponding path program 14 times [2022-11-18 21:00:13,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:13,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430482794] [2022-11-18 21:00:13,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:13,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:13,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:13,869 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 21:00:13,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:00:13,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430482794] [2022-11-18 21:00:13,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430482794] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:00:13,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:00:13,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 21:00:13,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736355653] [2022-11-18 21:00:13,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:00:13,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 21:00:13,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:00:13,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 21:00:13,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-18 21:00:13,871 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 103 [2022-11-18 21:00:13,872 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 620 transitions, 10821 flow. Second operand has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 21:00:13,872 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:00:13,872 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 103 [2022-11-18 21:00:13,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:00:18,408 INFO L130 PetriNetUnfolder]: 2925/9278 cut-off events. [2022-11-18 21:00:18,408 INFO L131 PetriNetUnfolder]: For 165971/166059 co-relation queries the response was YES. [2022-11-18 21:00:18,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53940 conditions, 9278 events. 2925/9278 cut-off events. For 165971/166059 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 98394 event pairs, 666 based on Foata normal form. 105/9366 useless extension candidates. Maximal degree in co-relation 53830. Up to 2177 conditions per place. [2022-11-18 21:00:18,534 INFO L137 encePairwiseOnDemand]: 84/103 looper letters, 517 selfloop transitions, 206 changer transitions 98/907 dead transitions. [2022-11-18 21:00:18,534 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 907 transitions, 15036 flow [2022-11-18 21:00:18,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 21:00:18,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-18 21:00:18,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 888 transitions. [2022-11-18 21:00:18,536 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7184466019417476 [2022-11-18 21:00:18,536 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 888 transitions. [2022-11-18 21:00:18,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 888 transitions. [2022-11-18 21:00:18,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:00:18,537 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 888 transitions. [2022-11-18 21:00:18,539 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 74.0) internal successors, (888), 12 states have internal predecessors, (888), 0 states have call successors, (0), 0 states 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 21:00:18,541 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 21:00:18,542 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 21:00:18,542 INFO L175 Difference]: Start difference. First operand has 349 places, 620 transitions, 10821 flow. Second operand 12 states and 888 transitions. [2022-11-18 21:00:18,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 360 places, 907 transitions, 15036 flow [2022-11-18 21:00:20,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 907 transitions, 14648 flow, removed 3 selfloop flow, removed 6 redundant places. [2022-11-18 21:00:20,141 INFO L231 Difference]: Finished difference. Result has 357 places, 617 transitions, 10832 flow [2022-11-18 21:00:20,142 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=10436, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=620, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=204, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=415, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=10832, PETRI_PLACES=357, PETRI_TRANSITIONS=617} [2022-11-18 21:00:20,142 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 255 predicate places. [2022-11-18 21:00:20,143 INFO L495 AbstractCegarLoop]: Abstraction has has 357 places, 617 transitions, 10832 flow [2022-11-18 21:00:20,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 21:00:20,143 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:00:20,143 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:00:20,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-18 21:00:20,144 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 21:00:20,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:20,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1952645320, now seen corresponding path program 15 times [2022-11-18 21:00:20,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:20,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477033897] [2022-11-18 21:00:20,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:20,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:20,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:20,961 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 21:00:20,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:00:20,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477033897] [2022-11-18 21:00:20,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477033897] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:00:20,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:00:20,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 21:00:20,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303456737] [2022-11-18 21:00:20,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:00:20,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 21:00:20,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:00:20,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 21:00:20,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-11-18 21:00:20,965 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 103 [2022-11-18 21:00:20,966 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 357 places, 617 transitions, 10832 flow. Second operand has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 21:00:20,966 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:00:20,966 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 103 [2022-11-18 21:00:20,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand