./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d445b0a-8b54-4231-b93b-9ee0e73ff0cb/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d445b0a-8b54-4231-b93b-9ee0e73ff0cb/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_2d445b0a-8b54-4231-b93b-9ee0e73ff0cb/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d445b0a-8b54-4231-b93b-9ee0e73ff0cb/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d445b0a-8b54-4231-b93b-9ee0e73ff0cb/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_2d445b0a-8b54-4231-b93b-9ee0e73ff0cb/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 034172cc4904075fab6f792587170b7236be9fb41f3a62fa7fbe9a216ec4ca2c --- 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 20:15:29,718 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:15:29,721 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:15:29,768 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:15:29,770 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:15:29,776 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:15:29,779 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:15:29,785 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:15:29,788 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:15:29,796 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:15:29,797 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:15:29,800 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:15:29,801 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:15:29,803 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:15:29,805 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:15:29,808 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:15:29,811 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:15:29,813 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:15:29,815 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:15:29,823 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:15:29,825 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:15:29,828 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:15:29,832 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:15:29,833 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:15:29,839 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:15:29,840 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:15:29,840 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:15:29,843 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:15:29,843 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:15:29,845 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:15:29,845 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:15:29,847 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:15:29,849 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:15:29,850 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:15:29,852 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:15:29,852 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:15:29,853 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:15:29,853 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:15:29,854 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:15:29,855 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:15:29,856 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:15:29,857 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d445b0a-8b54-4231-b93b-9ee0e73ff0cb/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 20:15:29,908 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:15:29,909 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:15:29,910 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:15:29,910 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:15:29,911 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:15:29,911 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:15:29,912 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:15:29,913 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:15:29,913 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:15:29,913 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:15:29,915 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:15:29,915 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:15:29,915 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:15:29,916 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:15:29,916 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:15:29,916 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:15:29,916 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:15:29,917 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:15:29,917 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 20:15:29,917 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:15:29,918 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:15:29,918 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:15:29,918 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:15:29,918 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:15:29,919 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:15:29,919 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:15:29,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:15:29,921 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:15:29,922 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:15:29,922 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:15:29,922 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:15:29,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:15:29,923 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:15:29,923 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:15:29,923 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:15:29,924 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_2d445b0a-8b54-4231-b93b-9ee0e73ff0cb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d445b0a-8b54-4231-b93b-9ee0e73ff0cb/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 034172cc4904075fab6f792587170b7236be9fb41f3a62fa7fbe9a216ec4ca2c [2022-11-18 20:15:30,288 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:15:30,328 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:15:30,331 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:15:30,332 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:15:30,333 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:15:30,334 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d445b0a-8b54-4231-b93b-9ee0e73ff0cb/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc.i [2022-11-18 20:15:30,418 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d445b0a-8b54-4231-b93b-9ee0e73ff0cb/bin/uautomizer-TMbwUNV5ro/data/14839a173/3459810b39104db78db6929421c5f5cf/FLAG446d3d297 [2022-11-18 20:15:31,090 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:15:31,090 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d445b0a-8b54-4231-b93b-9ee0e73ff0cb/sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc.i [2022-11-18 20:15:31,113 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d445b0a-8b54-4231-b93b-9ee0e73ff0cb/bin/uautomizer-TMbwUNV5ro/data/14839a173/3459810b39104db78db6929421c5f5cf/FLAG446d3d297 [2022-11-18 20:15:31,323 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d445b0a-8b54-4231-b93b-9ee0e73ff0cb/bin/uautomizer-TMbwUNV5ro/data/14839a173/3459810b39104db78db6929421c5f5cf [2022-11-18 20:15:31,326 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:15:31,327 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:15:31,330 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:15:31,330 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:15:31,333 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:15:31,334 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:15:31" (1/1) ... [2022-11-18 20:15:31,337 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6608af6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:15:31, skipping insertion in model container [2022-11-18 20:15:31,337 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:15:31" (1/1) ... [2022-11-18 20:15:31,346 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:15:31,415 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:15:32,066 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:15:32,086 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:15:32,143 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:15:32,219 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:15:32,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:15:32 WrapperNode [2022-11-18 20:15:32,220 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:15:32,221 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:15:32,222 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:15:32,222 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:15:32,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:15:32" (1/1) ... [2022-11-18 20:15:32,266 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:15:32" (1/1) ... [2022-11-18 20:15:32,359 INFO L138 Inliner]: procedures = 370, calls = 36, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 328 [2022-11-18 20:15:32,359 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:15:32,360 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:15:32,360 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:15:32,360 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:15:32,400 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:15:32" (1/1) ... [2022-11-18 20:15:32,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:15:32" (1/1) ... [2022-11-18 20:15:32,410 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:15:32" (1/1) ... [2022-11-18 20:15:32,411 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:15:32" (1/1) ... [2022-11-18 20:15:32,441 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:15:32" (1/1) ... [2022-11-18 20:15:32,446 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:15:32" (1/1) ... [2022-11-18 20:15:32,449 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:15:32" (1/1) ... [2022-11-18 20:15:32,451 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:15:32" (1/1) ... [2022-11-18 20:15:32,456 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:15:32,457 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:15:32,458 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:15:32,458 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:15:32,459 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:15:32" (1/1) ... [2022-11-18 20:15:32,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:15:32,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d445b0a-8b54-4231-b93b-9ee0e73ff0cb/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:15:32,499 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d445b0a-8b54-4231-b93b-9ee0e73ff0cb/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:15:32,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d445b0a-8b54-4231-b93b-9ee0e73ff0cb/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:15:32,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:15:32,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 20:15:32,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:15:32,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:15:32,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:15:32,558 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 20:15:32,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:15:32,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:15:32,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 20:15:32,561 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-18 20:15:32,561 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-18 20:15:32,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:15:32,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:15:32,564 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 20:15:32,826 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:15:32,828 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:15:33,838 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:15:33,860 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:15:33,860 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 20:15:33,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:15:33 BoogieIcfgContainer [2022-11-18 20:15:33,864 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:15:33,867 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:15:33,867 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:15:33,871 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:15:33,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:15:31" (1/3) ... [2022-11-18 20:15:33,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cb66121 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:15:33, skipping insertion in model container [2022-11-18 20:15:33,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:15:32" (2/3) ... [2022-11-18 20:15:33,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cb66121 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:15:33, skipping insertion in model container [2022-11-18 20:15:33,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:15:33" (3/3) ... [2022-11-18 20:15:33,876 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_12-arraycollapse_rc.i [2022-11-18 20:15:33,890 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:15:33,902 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:15:33,902 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2022-11-18 20:15:33,902 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:15:34,039 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 20:15:34,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 398 places, 399 transitions, 803 flow [2022-11-18 20:15:34,280 INFO L130 PetriNetUnfolder]: 5/398 cut-off events. [2022-11-18 20:15:34,280 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:15:34,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 402 conditions, 398 events. 5/398 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 363 event pairs, 0 based on Foata normal form. 0/365 useless extension candidates. Maximal degree in co-relation 272. Up to 2 conditions per place. [2022-11-18 20:15:34,292 INFO L82 GeneralOperation]: Start removeDead. Operand has 398 places, 399 transitions, 803 flow [2022-11-18 20:15:34,311 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 397 places, 398 transitions, 799 flow [2022-11-18 20:15:34,321 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:15:34,329 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;@57162563, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:15:34,329 INFO L358 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2022-11-18 20:15:34,340 INFO L130 PetriNetUnfolder]: 2/51 cut-off events. [2022-11-18 20:15:34,340 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:15:34,340 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:15:34,341 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:15:34,342 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-18 20:15:34,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:15:34,348 INFO L85 PathProgramCache]: Analyzing trace with hash 521919878, now seen corresponding path program 1 times [2022-11-18 20:15:34,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:15:34,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142219370] [2022-11-18 20:15:34,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:15:34,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:15:34,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:15:35,236 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 20:15:35,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:15:35,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142219370] [2022-11-18 20:15:35,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142219370] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:15:35,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:15:35,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:15:35,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891998609] [2022-11-18 20:15:35,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:15:35,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:15:35,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:15:35,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:15:35,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:15:35,292 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 399 [2022-11-18 20:15:35,300 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 397 places, 398 transitions, 799 flow. Second operand has 6 states, 6 states have (on average 206.5) internal successors, (1239), 6 states have internal predecessors, (1239), 0 states have call successors, (0), 0 states 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 20:15:35,300 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:15:35,300 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 399 [2022-11-18 20:15:35,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:15:36,766 INFO L130 PetriNetUnfolder]: 649/2229 cut-off events. [2022-11-18 20:15:36,766 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 20:15:36,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3717 conditions, 2229 events. 649/2229 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 11805 event pairs, 648 based on Foata normal form. 19/1986 useless extension candidates. Maximal degree in co-relation 3312. Up to 1469 conditions per place. [2022-11-18 20:15:36,787 INFO L137 encePairwiseOnDemand]: 377/399 looper letters, 172 selfloop transitions, 15 changer transitions 2/391 dead transitions. [2022-11-18 20:15:36,787 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 391 transitions, 1159 flow [2022-11-18 20:15:36,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:15:36,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:15:36,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1424 transitions. [2022-11-18 20:15:36,812 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5948203842940685 [2022-11-18 20:15:36,813 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1424 transitions. [2022-11-18 20:15:36,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1424 transitions. [2022-11-18 20:15:36,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:15:36,822 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1424 transitions. [2022-11-18 20:15:36,830 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 237.33333333333334) internal successors, (1424), 6 states have internal predecessors, (1424), 0 states have call successors, (0), 0 states 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 20:15:36,842 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 399.0) internal successors, (2793), 7 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states 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 20:15:36,844 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 399.0) internal successors, (2793), 7 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states 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 20:15:36,846 INFO L175 Difference]: Start difference. First operand has 397 places, 398 transitions, 799 flow. Second operand 6 states and 1424 transitions. [2022-11-18 20:15:36,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 391 transitions, 1159 flow [2022-11-18 20:15:36,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 391 transitions, 1158 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:15:36,868 INFO L231 Difference]: Finished difference. Result has 398 places, 389 transitions, 810 flow [2022-11-18 20:15:36,870 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=399, PETRI_DIFFERENCE_MINUEND_FLOW=784, PETRI_DIFFERENCE_MINUEND_PLACES=393, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=391, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=376, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=810, PETRI_PLACES=398, PETRI_TRANSITIONS=389} [2022-11-18 20:15:36,876 INFO L288 CegarLoopForPetriNet]: 397 programPoint places, 1 predicate places. [2022-11-18 20:15:36,877 INFO L495 AbstractCegarLoop]: Abstraction has has 398 places, 389 transitions, 810 flow [2022-11-18 20:15:36,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 206.5) internal successors, (1239), 6 states have internal predecessors, (1239), 0 states have call successors, (0), 0 states 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 20:15:36,878 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:15:36,878 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:15:36,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:15:36,879 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-18 20:15:36,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:15:36,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1419086595, now seen corresponding path program 1 times [2022-11-18 20:15:36,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:15:36,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375455369] [2022-11-18 20:15:36,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:15:36,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:15:36,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:15:37,462 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 20:15:37,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:15:37,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375455369] [2022-11-18 20:15:37,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375455369] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:15:37,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:15:37,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:15:37,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133507122] [2022-11-18 20:15:37,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:15:37,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:15:37,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:15:37,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:15:37,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:15:37,471 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 399 [2022-11-18 20:15:37,475 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 398 places, 389 transitions, 810 flow. Second operand has 6 states, 6 states have (on average 207.5) internal successors, (1245), 6 states have internal predecessors, (1245), 0 states have call successors, (0), 0 states 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 20:15:37,476 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:15:37,476 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 399 [2022-11-18 20:15:37,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:15:38,501 INFO L130 PetriNetUnfolder]: 649/2224 cut-off events. [2022-11-18 20:15:38,501 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 20:15:38,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3724 conditions, 2224 events. 649/2224 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 11735 event pairs, 648 based on Foata normal form. 0/1967 useless extension candidates. Maximal degree in co-relation 3471. Up to 1466 conditions per place. [2022-11-18 20:15:38,513 INFO L137 encePairwiseOnDemand]: 381/399 looper letters, 169 selfloop transitions, 15 changer transitions 0/386 dead transitions. [2022-11-18 20:15:38,513 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 398 places, 386 transitions, 1172 flow [2022-11-18 20:15:38,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:15:38,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:15:38,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1417 transitions. [2022-11-18 20:15:38,518 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5918964076858814 [2022-11-18 20:15:38,518 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1417 transitions. [2022-11-18 20:15:38,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1417 transitions. [2022-11-18 20:15:38,520 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:15:38,520 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1417 transitions. [2022-11-18 20:15:38,524 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 236.16666666666666) internal successors, (1417), 6 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states 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 20:15:38,530 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 399.0) internal successors, (2793), 7 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states 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 20:15:38,532 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 399.0) internal successors, (2793), 7 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states 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 20:15:38,532 INFO L175 Difference]: Start difference. First operand has 398 places, 389 transitions, 810 flow. Second operand 6 states and 1417 transitions. [2022-11-18 20:15:38,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 398 places, 386 transitions, 1172 flow [2022-11-18 20:15:38,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 393 places, 386 transitions, 1142 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 20:15:38,542 INFO L231 Difference]: Finished difference. Result has 393 places, 386 transitions, 804 flow [2022-11-18 20:15:38,543 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=399, PETRI_DIFFERENCE_MINUEND_FLOW=774, PETRI_DIFFERENCE_MINUEND_PLACES=388, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=386, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=804, PETRI_PLACES=393, PETRI_TRANSITIONS=386} [2022-11-18 20:15:38,544 INFO L288 CegarLoopForPetriNet]: 397 programPoint places, -4 predicate places. [2022-11-18 20:15:38,544 INFO L495 AbstractCegarLoop]: Abstraction has has 393 places, 386 transitions, 804 flow [2022-11-18 20:15:38,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 207.5) internal successors, (1245), 6 states have internal predecessors, (1245), 0 states have call successors, (0), 0 states 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 20:15:38,546 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:15:38,546 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:15:38,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:15:38,547 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-18 20:15:38,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:15:38,549 INFO L85 PathProgramCache]: Analyzing trace with hash 697026111, now seen corresponding path program 1 times [2022-11-18 20:15:38,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:15:38,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299163683] [2022-11-18 20:15:38,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:15:38,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:15:38,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:15:39,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:15:39,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:15:39,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299163683] [2022-11-18 20:15:39,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299163683] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:15:39,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:15:39,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:15:39,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567307154] [2022-11-18 20:15:39,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:15:39,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:15:39,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:15:39,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:15:39,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:15:39,081 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 399 [2022-11-18 20:15:39,083 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 393 places, 386 transitions, 804 flow. Second operand has 6 states, 6 states have (on average 212.83333333333334) internal successors, (1277), 6 states have internal predecessors, (1277), 0 states have call successors, (0), 0 states 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 20:15:39,084 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:15:39,084 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 399 [2022-11-18 20:15:39,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:15:39,956 INFO L130 PetriNetUnfolder]: 704/2342 cut-off events. [2022-11-18 20:15:39,957 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 20:15:39,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3947 conditions, 2342 events. 704/2342 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 12444 event pairs, 703 based on Foata normal form. 0/2076 useless extension candidates. Maximal degree in co-relation 3687. Up to 1581 conditions per place. [2022-11-18 20:15:39,971 INFO L137 encePairwiseOnDemand]: 393/399 looper letters, 174 selfloop transitions, 5 changer transitions 0/385 dead transitions. [2022-11-18 20:15:39,972 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 385 transitions, 1160 flow [2022-11-18 20:15:39,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:15:39,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:15:39,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1434 transitions. [2022-11-18 20:15:39,978 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5989974937343359 [2022-11-18 20:15:39,978 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1434 transitions. [2022-11-18 20:15:39,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1434 transitions. [2022-11-18 20:15:39,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:15:39,980 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1434 transitions. [2022-11-18 20:15:39,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 0 states have call successors, (0), 0 states 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 20:15:39,992 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 399.0) internal successors, (2793), 7 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states 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 20:15:39,994 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 399.0) internal successors, (2793), 7 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states 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 20:15:39,995 INFO L175 Difference]: Start difference. First operand has 393 places, 386 transitions, 804 flow. Second operand 6 states and 1434 transitions. [2022-11-18 20:15:39,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 385 transitions, 1160 flow [2022-11-18 20:15:40,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 392 places, 385 transitions, 1130 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 20:15:40,008 INFO L231 Difference]: Finished difference. Result has 392 places, 385 transitions, 782 flow [2022-11-18 20:15:40,009 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=399, PETRI_DIFFERENCE_MINUEND_FLOW=772, PETRI_DIFFERENCE_MINUEND_PLACES=387, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=385, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=380, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=782, PETRI_PLACES=392, PETRI_TRANSITIONS=385} [2022-11-18 20:15:40,012 INFO L288 CegarLoopForPetriNet]: 397 programPoint places, -5 predicate places. [2022-11-18 20:15:40,012 INFO L495 AbstractCegarLoop]: Abstraction has has 392 places, 385 transitions, 782 flow [2022-11-18 20:15:40,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 212.83333333333334) internal successors, (1277), 6 states have internal predecessors, (1277), 0 states have call successors, (0), 0 states 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 20:15:40,014 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:15:40,014 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:15:40,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:15:40,015 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-18 20:15:40,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:15:40,016 INFO L85 PathProgramCache]: Analyzing trace with hash 931409873, now seen corresponding path program 1 times [2022-11-18 20:15:40,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:15:40,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633476808] [2022-11-18 20:15:40,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:15:40,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:15:40,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:15:40,138 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 20:15:40,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:15:40,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633476808] [2022-11-18 20:15:40,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633476808] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:15:40,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:15:40,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:15:40,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697204965] [2022-11-18 20:15:40,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:15:40,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:15:40,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:15:40,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:15:40,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:15:40,144 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 373 out of 399 [2022-11-18 20:15:40,146 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 385 transitions, 782 flow. Second operand has 3 states, 3 states have (on average 374.0) internal successors, (1122), 3 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states 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 20:15:40,146 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:15:40,147 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 373 of 399 [2022-11-18 20:15:40,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:15:40,304 INFO L130 PetriNetUnfolder]: 1/494 cut-off events. [2022-11-18 20:15:40,305 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-18 20:15:40,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 547 conditions, 494 events. 1/494 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 338 event pairs, 0 based on Foata normal form. 0/467 useless extension candidates. Maximal degree in co-relation 80. Up to 22 conditions per place. [2022-11-18 20:15:40,307 INFO L137 encePairwiseOnDemand]: 396/399 looper letters, 36 selfloop transitions, 2 changer transitions 0/402 dead transitions. [2022-11-18 20:15:40,307 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 394 places, 402 transitions, 900 flow [2022-11-18 20:15:40,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:15:40,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:15:40,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1158 transitions. [2022-11-18 20:15:40,311 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9674185463659147 [2022-11-18 20:15:40,311 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1158 transitions. [2022-11-18 20:15:40,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1158 transitions. [2022-11-18 20:15:40,313 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:15:40,313 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1158 transitions. [2022-11-18 20:15:40,317 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 386.0) internal successors, (1158), 3 states have internal predecessors, (1158), 0 states have call successors, (0), 0 states 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 20:15:40,321 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 399.0) internal successors, (1596), 4 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states 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 20:15:40,327 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 399.0) internal successors, (1596), 4 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states 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 20:15:40,328 INFO L175 Difference]: Start difference. First operand has 392 places, 385 transitions, 782 flow. Second operand 3 states and 1158 transitions. [2022-11-18 20:15:40,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 394 places, 402 transitions, 900 flow [2022-11-18 20:15:40,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 389 places, 402 transitions, 882 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 20:15:40,345 INFO L231 Difference]: Finished difference. Result has 390 places, 386 transitions, 784 flow [2022-11-18 20:15:40,346 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=399, PETRI_DIFFERENCE_MINUEND_FLOW=772, PETRI_DIFFERENCE_MINUEND_PLACES=387, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=385, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=383, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=784, PETRI_PLACES=390, PETRI_TRANSITIONS=386} [2022-11-18 20:15:40,347 INFO L288 CegarLoopForPetriNet]: 397 programPoint places, -7 predicate places. [2022-11-18 20:15:40,348 INFO L495 AbstractCegarLoop]: Abstraction has has 390 places, 386 transitions, 784 flow [2022-11-18 20:15:40,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 374.0) internal successors, (1122), 3 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states 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 20:15:40,351 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:15:40,352 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:15:40,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:15:40,353 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-18 20:15:40,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:15:40,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1590104516, now seen corresponding path program 1 times [2022-11-18 20:15:40,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:15:40,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329514016] [2022-11-18 20:15:40,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:15:40,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:15:40,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:15:40,927 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 20:15:40,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:15:40,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329514016] [2022-11-18 20:15:40,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329514016] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:15:40,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:15:40,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:15:40,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210313019] [2022-11-18 20:15:40,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:15:40,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:15:40,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:15:40,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:15:40,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:15:40,932 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 399 [2022-11-18 20:15:40,933 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 386 transitions, 784 flow. Second operand has 6 states, 6 states have (on average 217.33333333333334) internal successors, (1304), 6 states have internal predecessors, (1304), 0 states have call successors, (0), 0 states 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 20:15:40,934 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:15:40,934 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 399 [2022-11-18 20:15:40,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:15:42,291 INFO L130 PetriNetUnfolder]: 704/2449 cut-off events. [2022-11-18 20:15:42,291 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-18 20:15:42,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4096 conditions, 2449 events. 704/2449 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 12448 event pairs, 703 based on Foata normal form. 0/2182 useless extension candidates. Maximal degree in co-relation 3908. Up to 1615 conditions per place. [2022-11-18 20:15:42,303 INFO L137 encePairwiseOnDemand]: 393/399 looper letters, 172 selfloop transitions, 5 changer transitions 0/385 dead transitions. [2022-11-18 20:15:42,303 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 394 places, 385 transitions, 1136 flow [2022-11-18 20:15:42,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:15:42,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:15:42,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1443 transitions. [2022-11-18 20:15:42,307 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6027568922305765 [2022-11-18 20:15:42,308 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1443 transitions. [2022-11-18 20:15:42,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1443 transitions. [2022-11-18 20:15:42,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:15:42,309 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1443 transitions. [2022-11-18 20:15:42,312 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 240.5) internal successors, (1443), 6 states have internal predecessors, (1443), 0 states have call successors, (0), 0 states 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 20:15:42,317 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 399.0) internal successors, (2793), 7 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states 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 20:15:42,318 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 399.0) internal successors, (2793), 7 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states 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 20:15:42,319 INFO L175 Difference]: Start difference. First operand has 390 places, 386 transitions, 784 flow. Second operand 6 states and 1443 transitions. [2022-11-18 20:15:42,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 394 places, 385 transitions, 1136 flow [2022-11-18 20:15:42,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 393 places, 385 transitions, 1134 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:15:42,327 INFO L231 Difference]: Finished difference. Result has 393 places, 385 transitions, 790 flow [2022-11-18 20:15:42,328 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=399, PETRI_DIFFERENCE_MINUEND_FLOW=780, PETRI_DIFFERENCE_MINUEND_PLACES=388, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=385, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=380, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=790, PETRI_PLACES=393, PETRI_TRANSITIONS=385} [2022-11-18 20:15:42,331 INFO L288 CegarLoopForPetriNet]: 397 programPoint places, -4 predicate places. [2022-11-18 20:15:42,331 INFO L495 AbstractCegarLoop]: Abstraction has has 393 places, 385 transitions, 790 flow [2022-11-18 20:15:42,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 217.33333333333334) internal successors, (1304), 6 states have internal predecessors, (1304), 0 states have call successors, (0), 0 states 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 20:15:42,332 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:15:42,332 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:15:42,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:15:42,333 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-18 20:15:42,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:15:42,334 INFO L85 PathProgramCache]: Analyzing trace with hash -4084474, now seen corresponding path program 1 times [2022-11-18 20:15:42,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:15:42,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093790024] [2022-11-18 20:15:42,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:15:42,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:15:42,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:15:43,077 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 20:15:43,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:15:43,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093790024] [2022-11-18 20:15:43,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093790024] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:15:43,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:15:43,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:15:43,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226794918] [2022-11-18 20:15:43,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:15:43,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:15:43,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:15:43,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:15:43,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:15:43,090 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 214 out of 399 [2022-11-18 20:15:43,092 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 393 places, 385 transitions, 790 flow. Second operand has 6 states, 6 states have (on average 220.33333333333334) internal successors, (1322), 6 states have internal predecessors, (1322), 0 states have call successors, (0), 0 states 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 20:15:43,093 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:15:43,093 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 214 of 399 [2022-11-18 20:15:43,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:15:44,247 INFO L130 PetriNetUnfolder]: 649/2326 cut-off events. [2022-11-18 20:15:44,247 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-18 20:15:44,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3863 conditions, 2326 events. 649/2326 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 11719 event pairs, 648 based on Foata normal form. 0/2073 useless extension candidates. Maximal degree in co-relation 3638. Up to 1494 conditions per place. [2022-11-18 20:15:44,260 INFO L137 encePairwiseOnDemand]: 381/399 looper letters, 155 selfloop transitions, 15 changer transitions 0/382 dead transitions. [2022-11-18 20:15:44,260 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 395 places, 382 transitions, 1124 flow [2022-11-18 20:15:44,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:15:44,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:15:44,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1457 transitions. [2022-11-18 20:15:44,265 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6086048454469507 [2022-11-18 20:15:44,265 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1457 transitions. [2022-11-18 20:15:44,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1457 transitions. [2022-11-18 20:15:44,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:15:44,266 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1457 transitions. [2022-11-18 20:15:44,270 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 242.83333333333334) internal successors, (1457), 6 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states 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 20:15:44,275 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 399.0) internal successors, (2793), 7 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states 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 20:15:44,276 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 399.0) internal successors, (2793), 7 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states 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 20:15:44,276 INFO L175 Difference]: Start difference. First operand has 393 places, 385 transitions, 790 flow. Second operand 6 states and 1457 transitions. [2022-11-18 20:15:44,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 395 places, 382 transitions, 1124 flow [2022-11-18 20:15:44,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 390 places, 382 transitions, 1114 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 20:15:44,284 INFO L231 Difference]: Finished difference. Result has 390 places, 382 transitions, 804 flow [2022-11-18 20:15:44,285 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=399, PETRI_DIFFERENCE_MINUEND_FLOW=774, PETRI_DIFFERENCE_MINUEND_PLACES=385, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=382, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=367, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=804, PETRI_PLACES=390, PETRI_TRANSITIONS=382} [2022-11-18 20:15:44,288 INFO L288 CegarLoopForPetriNet]: 397 programPoint places, -7 predicate places. [2022-11-18 20:15:44,288 INFO L495 AbstractCegarLoop]: Abstraction has has 390 places, 382 transitions, 804 flow [2022-11-18 20:15:44,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 220.33333333333334) internal successors, (1322), 6 states have internal predecessors, (1322), 0 states have call successors, (0), 0 states 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 20:15:44,289 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:15:44,289 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:15:44,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:15:44,290 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-18 20:15:44,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:15:44,290 INFO L85 PathProgramCache]: Analyzing trace with hash -2141407888, now seen corresponding path program 1 times [2022-11-18 20:15:44,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:15:44,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203905222] [2022-11-18 20:15:44,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:15:44,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:15:44,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:15:44,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:15:44,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:15:44,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203905222] [2022-11-18 20:15:44,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203905222] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:15:44,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:15:44,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:15:44,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155320073] [2022-11-18 20:15:44,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:15:44,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:15:44,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:15:44,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:15:44,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:15:44,877 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 399 [2022-11-18 20:15:44,879 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 382 transitions, 804 flow. Second operand has 6 states, 6 states have (on average 215.5) internal successors, (1293), 6 states have internal predecessors, (1293), 0 states have call successors, (0), 0 states 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 20:15:44,879 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:15:44,879 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 399 [2022-11-18 20:15:44,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:15:45,887 INFO L130 PetriNetUnfolder]: 649/2322 cut-off events. [2022-11-18 20:15:45,888 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:15:45,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3873 conditions, 2322 events. 649/2322 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 11743 event pairs, 648 based on Foata normal form. 0/2073 useless extension candidates. Maximal degree in co-relation 3522. Up to 1502 conditions per place. [2022-11-18 20:15:45,901 INFO L137 encePairwiseOnDemand]: 381/399 looper letters, 158 selfloop transitions, 15 changer transitions 0/379 dead transitions. [2022-11-18 20:15:45,901 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 379 transitions, 1144 flow [2022-11-18 20:15:45,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:15:45,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:15:45,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1424 transitions. [2022-11-18 20:15:45,906 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5948203842940685 [2022-11-18 20:15:45,907 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1424 transitions. [2022-11-18 20:15:45,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1424 transitions. [2022-11-18 20:15:45,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:15:45,908 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1424 transitions. [2022-11-18 20:15:45,912 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 237.33333333333334) internal successors, (1424), 6 states have internal predecessors, (1424), 0 states have call successors, (0), 0 states 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 20:15:45,917 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 399.0) internal successors, (2793), 7 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states 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 20:15:45,919 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 399.0) internal successors, (2793), 7 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states 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 20:15:45,919 INFO L175 Difference]: Start difference. First operand has 390 places, 382 transitions, 804 flow. Second operand 6 states and 1424 transitions. [2022-11-18 20:15:45,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 379 transitions, 1144 flow [2022-11-18 20:15:45,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 379 transitions, 1114 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 20:15:45,931 INFO L231 Difference]: Finished difference. Result has 387 places, 379 transitions, 798 flow [2022-11-18 20:15:45,932 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=399, PETRI_DIFFERENCE_MINUEND_FLOW=768, PETRI_DIFFERENCE_MINUEND_PLACES=382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=379, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=364, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=798, PETRI_PLACES=387, PETRI_TRANSITIONS=379} [2022-11-18 20:15:45,934 INFO L288 CegarLoopForPetriNet]: 397 programPoint places, -10 predicate places. [2022-11-18 20:15:45,934 INFO L495 AbstractCegarLoop]: Abstraction has has 387 places, 379 transitions, 798 flow [2022-11-18 20:15:45,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 215.5) internal successors, (1293), 6 states have internal predecessors, (1293), 0 states have call successors, (0), 0 states 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 20:15:45,935 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:15:45,935 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:15:45,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:15:45,936 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-18 20:15:45,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:15:45,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1590412246, now seen corresponding path program 1 times [2022-11-18 20:15:45,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:15:45,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676690052] [2022-11-18 20:15:45,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:15:45,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:15:46,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:15:46,570 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 20:15:46,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:15:46,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676690052] [2022-11-18 20:15:46,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676690052] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:15:46,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:15:46,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:15:46,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790642631] [2022-11-18 20:15:46,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:15:46,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:15:46,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:15:46,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:15:46,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:15:46,576 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 399 [2022-11-18 20:15:46,578 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 387 places, 379 transitions, 798 flow. Second operand has 6 states, 6 states have (on average 216.33333333333334) internal successors, (1298), 6 states have internal predecessors, (1298), 0 states have call successors, (0), 0 states 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 20:15:46,579 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:15:46,579 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 399 [2022-11-18 20:15:46,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:15:47,415 INFO L130 PetriNetUnfolder]: 649/2318 cut-off events. [2022-11-18 20:15:47,416 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-18 20:15:47,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3865 conditions, 2318 events. 649/2318 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 11727 event pairs, 648 based on Foata normal form. 0/2073 useless extension candidates. Maximal degree in co-relation 3518. Up to 1498 conditions per place. [2022-11-18 20:15:47,429 INFO L137 encePairwiseOnDemand]: 381/399 looper letters, 155 selfloop transitions, 15 changer transitions 0/376 dead transitions. [2022-11-18 20:15:47,429 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 389 places, 376 transitions, 1132 flow [2022-11-18 20:15:47,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:15:47,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:15:47,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1421 transitions. [2022-11-18 20:15:47,434 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5935672514619883 [2022-11-18 20:15:47,434 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1421 transitions. [2022-11-18 20:15:47,434 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1421 transitions. [2022-11-18 20:15:47,435 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:15:47,436 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1421 transitions. [2022-11-18 20:15:47,439 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 236.83333333333334) internal successors, (1421), 6 states have internal predecessors, (1421), 0 states have call successors, (0), 0 states 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 20:15:47,444 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 399.0) internal successors, (2793), 7 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states 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 20:15:47,446 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 399.0) internal successors, (2793), 7 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states 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 20:15:47,446 INFO L175 Difference]: Start difference. First operand has 387 places, 379 transitions, 798 flow. Second operand 6 states and 1421 transitions. [2022-11-18 20:15:47,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 389 places, 376 transitions, 1132 flow [2022-11-18 20:15:47,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 384 places, 376 transitions, 1102 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 20:15:47,454 INFO L231 Difference]: Finished difference. Result has 384 places, 376 transitions, 792 flow [2022-11-18 20:15:47,455 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=399, PETRI_DIFFERENCE_MINUEND_FLOW=762, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=376, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=361, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=792, PETRI_PLACES=384, PETRI_TRANSITIONS=376} [2022-11-18 20:15:47,456 INFO L288 CegarLoopForPetriNet]: 397 programPoint places, -13 predicate places. [2022-11-18 20:15:47,456 INFO L495 AbstractCegarLoop]: Abstraction has has 384 places, 376 transitions, 792 flow [2022-11-18 20:15:47,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 216.33333333333334) internal successors, (1298), 6 states have internal predecessors, (1298), 0 states have call successors, (0), 0 states 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 20:15:47,457 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:15:47,457 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:15:47,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:15:47,458 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-18 20:15:47,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:15:47,458 INFO L85 PathProgramCache]: Analyzing trace with hash -437765646, now seen corresponding path program 1 times [2022-11-18 20:15:47,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:15:47,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136810195] [2022-11-18 20:15:47,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:15:47,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:15:47,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:15:47,797 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 20:15:47,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:15:47,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136810195] [2022-11-18 20:15:47,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136810195] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:15:47,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [408775434] [2022-11-18 20:15:47,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:15:47,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:15:47,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d445b0a-8b54-4231-b93b-9ee0e73ff0cb/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:15:47,806 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d445b0a-8b54-4231-b93b-9ee0e73ff0cb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:15:47,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d445b0a-8b54-4231-b93b-9ee0e73ff0cb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:15:48,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:15:48,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 638 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:15:48,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:15:48,406 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 20:15:48,406 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:15:48,629 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 20:15:48,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [408775434] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:15:48,629 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:15:48,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 20:15:48,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787662261] [2022-11-18 20:15:48,630 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:15:48,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:15:48,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:15:48,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:15:48,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:15:48,637 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 372 out of 399 [2022-11-18 20:15:48,656 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 376 transitions, 792 flow. Second operand has 10 states, 10 states have (on average 377.6) internal successors, (3776), 10 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states 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 20:15:48,657 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:15:48,657 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 372 of 399 [2022-11-18 20:15:48,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:15:48,918 INFO L130 PetriNetUnfolder]: 1/588 cut-off events. [2022-11-18 20:15:48,918 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:15:48,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 680 conditions, 588 events. 1/588 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 98 event pairs, 0 based on Foata normal form. 2/578 useless extension candidates. Maximal degree in co-relation 94. Up to 17 conditions per place. [2022-11-18 20:15:48,920 INFO L137 encePairwiseOnDemand]: 393/399 looper letters, 47 selfloop transitions, 9 changer transitions 0/410 dead transitions. [2022-11-18 20:15:48,920 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 410 transitions, 974 flow [2022-11-18 20:15:48,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:15:48,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 20:15:48,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3406 transitions. [2022-11-18 20:15:48,928 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9484823169033695 [2022-11-18 20:15:48,928 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 3406 transitions. [2022-11-18 20:15:48,929 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 3406 transitions. [2022-11-18 20:15:48,931 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:15:48,931 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 3406 transitions. [2022-11-18 20:15:48,939 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 378.44444444444446) internal successors, (3406), 9 states have internal predecessors, (3406), 0 states have call successors, (0), 0 states 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 20:15:48,945 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 399.0) internal successors, (3990), 10 states have internal predecessors, (3990), 0 states have call successors, (0), 0 states 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 20:15:48,946 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 399.0) internal successors, (3990), 10 states have internal predecessors, (3990), 0 states have call successors, (0), 0 states 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 20:15:48,947 INFO L175 Difference]: Start difference. First operand has 384 places, 376 transitions, 792 flow. Second operand 9 states and 3406 transitions. [2022-11-18 20:15:48,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 410 transitions, 974 flow [2022-11-18 20:15:48,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 410 transitions, 944 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 20:15:48,956 INFO L231 Difference]: Finished difference. Result has 390 places, 382 transitions, 812 flow [2022-11-18 20:15:48,957 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=399, PETRI_DIFFERENCE_MINUEND_FLOW=762, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=376, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=370, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=812, PETRI_PLACES=390, PETRI_TRANSITIONS=382} [2022-11-18 20:15:48,958 INFO L288 CegarLoopForPetriNet]: 397 programPoint places, -7 predicate places. [2022-11-18 20:15:48,958 INFO L495 AbstractCegarLoop]: Abstraction has has 390 places, 382 transitions, 812 flow [2022-11-18 20:15:48,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 377.6) internal successors, (3776), 10 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states 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 20:15:48,962 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:15:48,963 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:15:48,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d445b0a-8b54-4231-b93b-9ee0e73ff0cb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:15:49,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d445b0a-8b54-4231-b93b-9ee0e73ff0cb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:15:49,170 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-18 20:15:49,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:15:49,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1851680140, now seen corresponding path program 2 times [2022-11-18 20:15:49,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:15:49,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767086639] [2022-11-18 20:15:49,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:15:49,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:15:49,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:15:50,156 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:15:50,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:15:50,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767086639] [2022-11-18 20:15:50,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767086639] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:15:50,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716406550] [2022-11-18 20:15:50,157 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:15:50,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:15:50,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d445b0a-8b54-4231-b93b-9ee0e73ff0cb/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:15:50,159 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d445b0a-8b54-4231-b93b-9ee0e73ff0cb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:15:50,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d445b0a-8b54-4231-b93b-9ee0e73ff0cb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:15:50,525 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 20:15:50,525 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:15:50,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 20:15:50,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:15:50,629 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 20:15:50,650 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 20:15:50,682 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:15:50,683 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 20:15:50,723 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:15:50,724 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 20:15:50,760 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2022-11-18 20:15:50,760 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:15:50,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [716406550] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:15:50,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:15:50,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2022-11-18 20:15:50,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291397187] [2022-11-18 20:15:50,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:15:50,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:15:50,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:15:50,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:15:50,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-18 20:15:50,767 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 399 [2022-11-18 20:15:50,769 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 382 transitions, 812 flow. Second operand has 6 states, 6 states have (on average 224.33333333333334) internal successors, (1346), 6 states have internal predecessors, (1346), 0 states have call successors, (0), 0 states 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 20:15:50,769 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:15:50,769 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 399 [2022-11-18 20:15:50,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:15:53,474 INFO L130 PetriNetUnfolder]: 1388/4462 cut-off events. [2022-11-18 20:15:53,474 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-18 20:15:53,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7582 conditions, 4462 events. 1388/4462 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 28724 event pairs, 95 based on Foata normal form. 0/4014 useless extension candidates. Maximal degree in co-relation 7076. Up to 1979 conditions per place. [2022-11-18 20:15:53,503 INFO L137 encePairwiseOnDemand]: 371/399 looper letters, 255 selfloop transitions, 74 changer transitions 0/546 dead transitions. [2022-11-18 20:15:53,503 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 394 places, 546 transitions, 1798 flow [2022-11-18 20:15:53,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:15:53,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:15:53,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1609 transitions. [2022-11-18 20:15:53,509 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6720969089390142 [2022-11-18 20:15:53,509 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1609 transitions. [2022-11-18 20:15:53,509 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1609 transitions. [2022-11-18 20:15:53,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:15:53,511 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1609 transitions. [2022-11-18 20:15:53,516 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 268.1666666666667) internal successors, (1609), 6 states have internal predecessors, (1609), 0 states have call successors, (0), 0 states 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 20:15:53,522 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 399.0) internal successors, (2793), 7 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states 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 20:15:53,523 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 399.0) internal successors, (2793), 7 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states 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 20:15:53,523 INFO L175 Difference]: Start difference. First operand has 390 places, 382 transitions, 812 flow. Second operand 6 states and 1609 transitions. [2022-11-18 20:15:53,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 394 places, 546 transitions, 1798 flow [2022-11-18 20:15:53,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 393 places, 546 transitions, 1792 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-11-18 20:15:53,538 INFO L231 Difference]: Finished difference. Result has 398 places, 449 transitions, 1278 flow [2022-11-18 20:15:53,539 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=399, PETRI_DIFFERENCE_MINUEND_FLOW=804, PETRI_DIFFERENCE_MINUEND_PLACES=388, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=381, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1278, PETRI_PLACES=398, PETRI_TRANSITIONS=449} [2022-11-18 20:15:53,539 INFO L288 CegarLoopForPetriNet]: 397 programPoint places, 1 predicate places. [2022-11-18 20:15:53,540 INFO L495 AbstractCegarLoop]: Abstraction has has 398 places, 449 transitions, 1278 flow [2022-11-18 20:15:53,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 224.33333333333334) internal successors, (1346), 6 states have internal predecessors, (1346), 0 states have call successors, (0), 0 states 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 20:15:53,541 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:15:53,542 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:15:53,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d445b0a-8b54-4231-b93b-9ee0e73ff0cb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:15:53,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d445b0a-8b54-4231-b93b-9ee0e73ff0cb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:15:53,749 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-18 20:15:53,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:15:53,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1247089820, now seen corresponding path program 1 times [2022-11-18 20:15:53,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:15:53,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397374624] [2022-11-18 20:15:53,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:15:53,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:15:53,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:15:54,780 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:15:54,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:15:54,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397374624] [2022-11-18 20:15:54,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397374624] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:15:54,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334183993] [2022-11-18 20:15:54,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:15:54,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:15:54,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d445b0a-8b54-4231-b93b-9ee0e73ff0cb/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:15:54,782 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d445b0a-8b54-4231-b93b-9ee0e73ff0cb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:15:54,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d445b0a-8b54-4231-b93b-9ee0e73ff0cb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 20:15:55,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:15:55,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 1645 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 20:15:55,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:15:55,893 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:15:55,893 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:15:56,531 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:15:56,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [334183993] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:15:56,532 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:15:56,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-18 20:15:56,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626466805] [2022-11-18 20:15:56,533 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:15:56,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 20:15:56,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:15:56,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 20:15:56,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-18 20:15:56,542 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 372 out of 399 [2022-11-18 20:15:56,549 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 398 places, 449 transitions, 1278 flow. Second operand has 18 states, 18 states have (on average 378.8888888888889) internal successors, (6820), 18 states have internal predecessors, (6820), 0 states have call successors, (0), 0 states 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 20:15:56,550 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:15:56,550 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 372 of 399 [2022-11-18 20:15:56,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:15:57,829 INFO L130 PetriNetUnfolder]: 119/1960 cut-off events. [2022-11-18 20:15:57,830 INFO L131 PetriNetUnfolder]: For 108/114 co-relation queries the response was YES. [2022-11-18 20:15:57,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2632 conditions, 1960 events. 119/1960 cut-off events. For 108/114 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 6307 event pairs, 0 based on Foata normal form. 4/1890 useless extension candidates. Maximal degree in co-relation 1698. Up to 173 conditions per place. [2022-11-18 20:15:57,842 INFO L137 encePairwiseOnDemand]: 393/399 looper letters, 103 selfloop transitions, 21 changer transitions 0/545 dead transitions. [2022-11-18 20:15:57,843 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 545 transitions, 1770 flow [2022-11-18 20:15:57,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 20:15:57,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-18 20:15:57,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 7940 transitions. [2022-11-18 20:15:57,863 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9476071130206468 [2022-11-18 20:15:57,863 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 7940 transitions. [2022-11-18 20:15:57,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 7940 transitions. [2022-11-18 20:15:57,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:15:57,870 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 7940 transitions. [2022-11-18 20:15:57,889 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 378.0952380952381) internal successors, (7940), 21 states have internal predecessors, (7940), 0 states have call successors, (0), 0 states 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 20:15:57,907 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 399.0) internal successors, (8778), 22 states have internal predecessors, (8778), 0 states have call successors, (0), 0 states 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 20:15:57,910 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 399.0) internal successors, (8778), 22 states have internal predecessors, (8778), 0 states have call successors, (0), 0 states 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 20:15:57,911 INFO L175 Difference]: Start difference. First operand has 398 places, 449 transitions, 1278 flow. Second operand 21 states and 7940 transitions. [2022-11-18 20:15:57,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 545 transitions, 1770 flow [2022-11-18 20:15:57,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 545 transitions, 1770 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:15:57,928 INFO L231 Difference]: Finished difference. Result has 423 places, 462 transitions, 1408 flow [2022-11-18 20:15:57,929 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=399, PETRI_DIFFERENCE_MINUEND_FLOW=1278, PETRI_DIFFERENCE_MINUEND_PLACES=398, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=449, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=438, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1408, PETRI_PLACES=423, PETRI_TRANSITIONS=462} [2022-11-18 20:15:57,930 INFO L288 CegarLoopForPetriNet]: 397 programPoint places, 26 predicate places. [2022-11-18 20:15:57,930 INFO L495 AbstractCegarLoop]: Abstraction has has 423 places, 462 transitions, 1408 flow [2022-11-18 20:15:57,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 378.8888888888889) internal successors, (6820), 18 states have internal predecessors, (6820), 0 states have call successors, (0), 0 states 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 20:15:57,933 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:15:57,934 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:15:57,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d445b0a-8b54-4231-b93b-9ee0e73ff0cb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:15:58,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d445b0a-8b54-4231-b93b-9ee0e73ff0cb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:15:58,144 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-18 20:15:58,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:15:58,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1504504800, now seen corresponding path program 2 times [2022-11-18 20:15:58,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:15:58,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162133911] [2022-11-18 20:15:58,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:15:58,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:15:58,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:00,974 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 0 proven. 2233 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:16:00,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:16:00,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162133911] [2022-11-18 20:16:00,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162133911] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:16:00,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468564282] [2022-11-18 20:16:00,975 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:16:00,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:16:00,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d445b0a-8b54-4231-b93b-9ee0e73ff0cb/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:16:00,977 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d445b0a-8b54-4231-b93b-9ee0e73ff0cb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:16:00,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d445b0a-8b54-4231-b93b-9ee0e73ff0cb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 20:16:01,579 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 20:16:01,579 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:16:01,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 20:16:01,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:16:01,633 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 20:16:01,656 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 20:16:01,693 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:16:01,696 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 20:16:01,740 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:16:01,740 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 20:16:01,779 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2233 trivial. 0 not checked. [2022-11-18 20:16:01,779 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:16:01,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468564282] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:16:01,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:16:01,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2022-11-18 20:16:01,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679519765] [2022-11-18 20:16:01,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:16:01,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:16:01,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:16:01,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:16:01,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2022-11-18 20:16:01,786 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 399 [2022-11-18 20:16:01,787 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 462 transitions, 1408 flow. Second operand has 6 states, 6 states have (on average 229.83333333333334) internal successors, (1379), 6 states have internal predecessors, (1379), 0 states have call successors, (0), 0 states 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 20:16:01,787 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:16:01,787 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 399 [2022-11-18 20:16:01,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:16:04,374 INFO L130 PetriNetUnfolder]: 1278/4824 cut-off events. [2022-11-18 20:16:04,374 INFO L131 PetriNetUnfolder]: For 1279/1378 co-relation queries the response was YES. [2022-11-18 20:16:04,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9396 conditions, 4824 events. 1278/4824 cut-off events. For 1279/1378 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 27881 event pairs, 859 based on Foata normal form. 0/4414 useless extension candidates. Maximal degree in co-relation 8214. Up to 3042 conditions per place. [2022-11-18 20:16:04,404 INFO L137 encePairwiseOnDemand]: 393/399 looper letters, 224 selfloop transitions, 5 changer transitions 0/461 dead transitions. [2022-11-18 20:16:04,405 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 427 places, 461 transitions, 1864 flow [2022-11-18 20:16:04,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:16:04,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:16:04,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1452 transitions. [2022-11-18 20:16:04,410 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.606516290726817 [2022-11-18 20:16:04,410 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1452 transitions. [2022-11-18 20:16:04,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1452 transitions. [2022-11-18 20:16:04,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:16:04,412 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1452 transitions. [2022-11-18 20:16:04,415 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 242.0) internal successors, (1452), 6 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states 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 20:16:04,420 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 399.0) internal successors, (2793), 7 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states 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 20:16:04,421 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 399.0) internal successors, (2793), 7 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states 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 20:16:04,421 INFO L175 Difference]: Start difference. First operand has 423 places, 462 transitions, 1408 flow. Second operand 6 states and 1452 transitions. [2022-11-18 20:16:04,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 427 places, 461 transitions, 1864 flow [2022-11-18 20:16:04,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 461 transitions, 1840 flow, removed 6 selfloop flow, removed 6 redundant places. [2022-11-18 20:16:04,435 INFO L231 Difference]: Finished difference. Result has 421 places, 461 transitions, 1392 flow [2022-11-18 20:16:04,436 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=399, PETRI_DIFFERENCE_MINUEND_FLOW=1382, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=461, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=456, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1392, PETRI_PLACES=421, PETRI_TRANSITIONS=461} [2022-11-18 20:16:04,437 INFO L288 CegarLoopForPetriNet]: 397 programPoint places, 24 predicate places. [2022-11-18 20:16:04,438 INFO L495 AbstractCegarLoop]: Abstraction has has 421 places, 461 transitions, 1392 flow [2022-11-18 20:16:04,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 229.83333333333334) internal successors, (1379), 6 states have internal predecessors, (1379), 0 states have call successors, (0), 0 states 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 20:16:04,439 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:16:04,439 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:16:04,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d445b0a-8b54-4231-b93b-9ee0e73ff0cb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:16:04,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d445b0a-8b54-4231-b93b-9ee0e73ff0cb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:16:04,653 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-18 20:16:04,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:16:04,653 INFO L85 PathProgramCache]: Analyzing trace with hash 569529520, now seen corresponding path program 1 times [2022-11-18 20:16:04,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:16:04,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745343734] [2022-11-18 20:16:04,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:16:04,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:16:04,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:07,782 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 0 proven. 2233 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:16:07,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:16:07,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745343734] [2022-11-18 20:16:07,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745343734] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:16:07,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [48884865] [2022-11-18 20:16:07,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:16:07,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:16:07,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d445b0a-8b54-4231-b93b-9ee0e73ff0cb/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:16:07,787 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d445b0a-8b54-4231-b93b-9ee0e73ff0cb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:16:07,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d445b0a-8b54-4231-b93b-9ee0e73ff0cb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 20:16:08,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:08,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 3565 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 20:16:08,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:16:10,178 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 0 proven. 2233 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:16:10,179 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:16:11,761 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 0 proven. 2233 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:16:11,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [48884865] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:16:11,762 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:16:11,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-11-18 20:16:11,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120353531] [2022-11-18 20:16:11,763 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:16:11,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-18 20:16:11,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:16:11,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-18 20:16:11,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-11-18 20:16:11,779 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 372 out of 399 [2022-11-18 20:16:11,787 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 461 transitions, 1392 flow. Second operand has 23 states, 23 states have (on average 379.6521739130435) internal successors, (8732), 23 states have internal predecessors, (8732), 0 states have call successors, (0), 0 states 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 20:16:11,787 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:16:11,787 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 372 of 399 [2022-11-18 20:16:11,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:16:13,231 INFO L130 PetriNetUnfolder]: 119/2277 cut-off events. [2022-11-18 20:16:13,231 INFO L131 PetriNetUnfolder]: For 225/231 co-relation queries the response was YES. [2022-11-18 20:16:13,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3069 conditions, 2277 events. 119/2277 cut-off events. For 225/231 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 6308 event pairs, 0 based on Foata normal form. 3/2207 useless extension candidates. Maximal degree in co-relation 1709. Up to 173 conditions per place. [2022-11-18 20:16:13,242 INFO L137 encePairwiseOnDemand]: 393/399 looper letters, 145 selfloop transitions, 30 changer transitions 0/595 dead transitions. [2022-11-18 20:16:13,242 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 450 places, 595 transitions, 2098 flow [2022-11-18 20:16:13,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-18 20:16:13,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-18 20:16:13,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 11338 transitions. [2022-11-18 20:16:13,261 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9472013366750209 [2022-11-18 20:16:13,261 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 11338 transitions. [2022-11-18 20:16:13,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 11338 transitions. [2022-11-18 20:16:13,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:16:13,267 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 11338 transitions. [2022-11-18 20:16:13,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 377.93333333333334) internal successors, (11338), 30 states have internal predecessors, (11338), 0 states have call successors, (0), 0 states 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 20:16:13,303 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 399.0) internal successors, (12369), 31 states have internal predecessors, (12369), 0 states have call successors, (0), 0 states 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 20:16:13,306 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 399.0) internal successors, (12369), 31 states have internal predecessors, (12369), 0 states have call successors, (0), 0 states 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 20:16:13,306 INFO L175 Difference]: Start difference. First operand has 421 places, 461 transitions, 1392 flow. Second operand 30 states and 11338 transitions. [2022-11-18 20:16:13,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 450 places, 595 transitions, 2098 flow [2022-11-18 20:16:13,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 445 places, 595 transitions, 2088 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 20:16:13,320 INFO L231 Difference]: Finished difference. Result has 449 places, 471 transitions, 1534 flow [2022-11-18 20:16:13,321 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=399, PETRI_DIFFERENCE_MINUEND_FLOW=1382, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=461, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=438, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1534, PETRI_PLACES=449, PETRI_TRANSITIONS=471} [2022-11-18 20:16:13,321 INFO L288 CegarLoopForPetriNet]: 397 programPoint places, 52 predicate places. [2022-11-18 20:16:13,321 INFO L495 AbstractCegarLoop]: Abstraction has has 449 places, 471 transitions, 1534 flow [2022-11-18 20:16:13,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 379.6521739130435) internal successors, (8732), 23 states have internal predecessors, (8732), 0 states have call successors, (0), 0 states 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 20:16:13,323 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:16:13,324 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:16:13,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d445b0a-8b54-4231-b93b-9ee0e73ff0cb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 20:16:13,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d445b0a-8b54-4231-b93b-9ee0e73ff0cb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-18 20:16:13,539 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-18 20:16:13,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:16:13,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1327737837, now seen corresponding path program 2 times [2022-11-18 20:16:13,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:16:13,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070890128] [2022-11-18 20:16:13,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:16:13,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:16:13,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:18,390 INFO L134 CoverageAnalysis]: Checked inductivity of 4780 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4780 trivial. 0 not checked. [2022-11-18 20:16:18,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:16:18,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070890128] [2022-11-18 20:16:18,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070890128] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:16:18,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:16:18,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:16:18,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570729907] [2022-11-18 20:16:18,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:16:18,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:16:18,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:16:18,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:16:18,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:16:18,395 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 399 [2022-11-18 20:16:18,396 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 471 transitions, 1534 flow. Second operand has 6 states, 6 states have (on average 240.16666666666666) internal successors, (1441), 6 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states 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 20:16:18,397 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:16:18,397 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 399 [2022-11-18 20:16:18,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:16:22,730 INFO L130 PetriNetUnfolder]: 1524/5633 cut-off events. [2022-11-18 20:16:22,730 INFO L131 PetriNetUnfolder]: For 1482/1589 co-relation queries the response was YES. [2022-11-18 20:16:22,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11008 conditions, 5633 events. 1524/5633 cut-off events. For 1482/1589 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 31594 event pairs, 624 based on Foata normal form. 16/5229 useless extension candidates. Maximal degree in co-relation 9327. Up to 3064 conditions per place. [2022-11-18 20:16:22,757 INFO L137 encePairwiseOnDemand]: 376/399 looper letters, 301 selfloop transitions, 130 changer transitions 0/680 dead transitions. [2022-11-18 20:16:22,757 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 680 transitions, 3190 flow [2022-11-18 20:16:22,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:16:22,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:16:22,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1636 transitions. [2022-11-18 20:16:22,761 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.683375104427736 [2022-11-18 20:16:22,761 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1636 transitions. [2022-11-18 20:16:22,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1636 transitions. [2022-11-18 20:16:22,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:16:22,762 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1636 transitions. [2022-11-18 20:16:22,765 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 272.6666666666667) internal successors, (1636), 6 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states 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 20:16:22,768 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 399.0) internal successors, (2793), 7 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states 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 20:16:22,769 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 399.0) internal successors, (2793), 7 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states 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 20:16:22,769 INFO L175 Difference]: Start difference. First operand has 449 places, 471 transitions, 1534 flow. Second operand 6 states and 1636 transitions. [2022-11-18 20:16:22,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 680 transitions, 3190 flow [2022-11-18 20:16:22,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 436 places, 680 transitions, 3144 flow, removed 5 selfloop flow, removed 18 redundant places. [2022-11-18 20:16:22,790 INFO L231 Difference]: Finished difference. Result has 441 places, 600 transitions, 2716 flow [2022-11-18 20:16:22,791 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=399, PETRI_DIFFERENCE_MINUEND_FLOW=1488, PETRI_DIFFERENCE_MINUEND_PLACES=431, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=471, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=434, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2716, PETRI_PLACES=441, PETRI_TRANSITIONS=600} [2022-11-18 20:16:22,792 INFO L288 CegarLoopForPetriNet]: 397 programPoint places, 44 predicate places. [2022-11-18 20:16:22,792 INFO L495 AbstractCegarLoop]: Abstraction has has 441 places, 600 transitions, 2716 flow [2022-11-18 20:16:22,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 240.16666666666666) internal successors, (1441), 6 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states 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 20:16:22,793 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:16:22,793 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:16:22,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 20:16:22,794 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-18 20:16:22,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:16:22,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1403161834, now seen corresponding path program 1 times [2022-11-18 20:16:22,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:16:22,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429736138] [2022-11-18 20:16:22,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:16:22,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:16:23,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:27,345 INFO L134 CoverageAnalysis]: Checked inductivity of 4780 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4780 trivial. 0 not checked. [2022-11-18 20:16:27,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:16:27,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429736138] [2022-11-18 20:16:27,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429736138] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:16:27,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:16:27,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:16:27,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108632437] [2022-11-18 20:16:27,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:16:27,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:16:27,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:16:27,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:16:27,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:16:27,349 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 399 [2022-11-18 20:16:27,350 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 600 transitions, 2716 flow. Second operand has 6 states, 6 states have (on average 238.66666666666666) internal successors, (1432), 6 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states 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 20:16:27,351 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:16:27,351 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 399 [2022-11-18 20:16:27,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:16:31,819 INFO L130 PetriNetUnfolder]: 1637/6434 cut-off events. [2022-11-18 20:16:31,819 INFO L131 PetriNetUnfolder]: For 3879/4077 co-relation queries the response was YES. [2022-11-18 20:16:31,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14019 conditions, 6434 events. 1637/6434 cut-off events. For 3879/4077 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 40636 event pairs, 508 based on Foata normal form. 0/6062 useless extension candidates. Maximal degree in co-relation 12355. Up to 3327 conditions per place. [2022-11-18 20:16:31,857 INFO L137 encePairwiseOnDemand]: 377/399 looper letters, 428 selfloop transitions, 129 changer transitions 5/808 dead transitions. [2022-11-18 20:16:31,858 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 808 transitions, 4878 flow [2022-11-18 20:16:31,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:16:31,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:16:31,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1620 transitions. [2022-11-18 20:16:31,861 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6766917293233082 [2022-11-18 20:16:31,861 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1620 transitions. [2022-11-18 20:16:31,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1620 transitions. [2022-11-18 20:16:31,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:16:31,862 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1620 transitions. [2022-11-18 20:16:31,865 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 270.0) internal successors, (1620), 6 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states 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 20:16:31,868 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 399.0) internal successors, (2793), 7 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states 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 20:16:31,869 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 399.0) internal successors, (2793), 7 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states 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 20:16:31,869 INFO L175 Difference]: Start difference. First operand has 441 places, 600 transitions, 2716 flow. Second operand 6 states and 1620 transitions. [2022-11-18 20:16:31,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 446 places, 808 transitions, 4878 flow [2022-11-18 20:16:31,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 446 places, 808 transitions, 4878 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:16:31,896 INFO L231 Difference]: Finished difference. Result has 451 places, 727 transitions, 4182 flow [2022-11-18 20:16:31,897 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=399, PETRI_DIFFERENCE_MINUEND_FLOW=2716, PETRI_DIFFERENCE_MINUEND_PLACES=441, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=600, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=564, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4182, PETRI_PLACES=451, PETRI_TRANSITIONS=727} [2022-11-18 20:16:31,897 INFO L288 CegarLoopForPetriNet]: 397 programPoint places, 54 predicate places. [2022-11-18 20:16:31,898 INFO L495 AbstractCegarLoop]: Abstraction has has 451 places, 727 transitions, 4182 flow [2022-11-18 20:16:31,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 238.66666666666666) internal successors, (1432), 6 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states 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 20:16:31,898 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:16:31,899 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:16:31,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 20:16:31,899 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-18 20:16:31,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:16:31,900 INFO L85 PathProgramCache]: Analyzing trace with hash 413039998, now seen corresponding path program 1 times [2022-11-18 20:16:31,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:16:31,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663163276] [2022-11-18 20:16:31,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:16:31,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:16:32,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:36,105 INFO L134 CoverageAnalysis]: Checked inductivity of 4780 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4780 trivial. 0 not checked. [2022-11-18 20:16:36,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:16:36,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663163276] [2022-11-18 20:16:36,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663163276] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:16:36,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:16:36,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:16:36,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139475831] [2022-11-18 20:16:36,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:16:36,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:16:36,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:16:36,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:16:36,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:16:36,110 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 399 [2022-11-18 20:16:36,111 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 451 places, 727 transitions, 4182 flow. Second operand has 6 states, 6 states have (on average 236.5) internal successors, (1419), 6 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states 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 20:16:36,112 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:16:36,112 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 399 [2022-11-18 20:16:36,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:16:40,310 INFO L130 PetriNetUnfolder]: 1747/6592 cut-off events. [2022-11-18 20:16:40,310 INFO L131 PetriNetUnfolder]: For 5719/5747 co-relation queries the response was YES. [2022-11-18 20:16:40,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16383 conditions, 6592 events. 1747/6592 cut-off events. For 5719/5747 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 40950 event pairs, 657 based on Foata normal form. 0/6288 useless extension candidates. Maximal degree in co-relation 14715. Up to 3974 conditions per place. [2022-11-18 20:16:40,336 INFO L137 encePairwiseOnDemand]: 380/399 looper letters, 495 selfloop transitions, 84 changer transitions 0/825 dead transitions. [2022-11-18 20:16:40,336 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 825 transitions, 5854 flow [2022-11-18 20:16:40,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:16:40,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:16:40,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1549 transitions. [2022-11-18 20:16:40,339 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6470342522974102 [2022-11-18 20:16:40,340 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1549 transitions. [2022-11-18 20:16:40,340 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1549 transitions. [2022-11-18 20:16:40,340 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:16:40,341 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1549 transitions. [2022-11-18 20:16:40,343 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 258.1666666666667) internal successors, (1549), 6 states have internal predecessors, (1549), 0 states have call successors, (0), 0 states 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 20:16:40,346 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 399.0) internal successors, (2793), 7 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states 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 20:16:40,347 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 399.0) internal successors, (2793), 7 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states 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 20:16:40,347 INFO L175 Difference]: Start difference. First operand has 451 places, 727 transitions, 4182 flow. Second operand 6 states and 1549 transitions. [2022-11-18 20:16:40,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 825 transitions, 5854 flow [2022-11-18 20:16:40,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 455 places, 825 transitions, 5600 flow, removed 127 selfloop flow, removed 0 redundant places. [2022-11-18 20:16:40,385 INFO L231 Difference]: Finished difference. Result has 460 places, 798 transitions, 4718 flow [2022-11-18 20:16:40,386 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=399, PETRI_DIFFERENCE_MINUEND_FLOW=3934, PETRI_DIFFERENCE_MINUEND_PLACES=450, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=727, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=679, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4718, PETRI_PLACES=460, PETRI_TRANSITIONS=798} [2022-11-18 20:16:40,387 INFO L288 CegarLoopForPetriNet]: 397 programPoint places, 63 predicate places. [2022-11-18 20:16:40,387 INFO L495 AbstractCegarLoop]: Abstraction has has 460 places, 798 transitions, 4718 flow [2022-11-18 20:16:40,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 236.5) internal successors, (1419), 6 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states 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 20:16:40,387 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:16:40,388 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:16:40,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 20:16:40,388 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-18 20:16:40,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:16:40,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1844784965, now seen corresponding path program 1 times [2022-11-18 20:16:40,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:16:40,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931625240] [2022-11-18 20:16:40,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:16:40,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:17:39,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat