./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_19-nested_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f506869-b1a8-464a-b18b-6242ad4966dc/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f506869-b1a8-464a-b18b-6242ad4966dc/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f506869-b1a8-464a-b18b-6242ad4966dc/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f506869-b1a8-464a-b18b-6242ad4966dc/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_19-nested_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f506869-b1a8-464a-b18b-6242ad4966dc/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f506869-b1a8-464a-b18b-6242ad4966dc/bin/uautomizer-tPACEb0tL8 --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 12bbf3623faa1d8cb0ae406b9406d293839854c20d2fb62622ec841c419248fb --- 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-e04fb08 [2022-11-16 11:30:11,900 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:30:11,902 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:30:11,925 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:30:11,932 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:30:11,936 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:30:11,939 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:30:11,943 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:30:11,946 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:30:11,949 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:30:11,951 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:30:11,953 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:30:11,955 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:30:11,961 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:30:11,963 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:30:11,964 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:30:11,966 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:30:11,968 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:30:11,970 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:30:11,973 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:30:11,977 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:30:11,978 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:30:11,981 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:30:11,982 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:30:11,988 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:30:11,994 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:30:11,994 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:30:11,995 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:30:11,997 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:30:11,998 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:30:11,998 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:30:11,999 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:30:12,001 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:30:12,003 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:30:12,005 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:30:12,005 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:30:12,006 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:30:12,006 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:30:12,007 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:30:12,008 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:30:12,008 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:30:12,009 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f506869-b1a8-464a-b18b-6242ad4966dc/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 11:30:12,057 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:30:12,057 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:30:12,058 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:30:12,058 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:30:12,059 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:30:12,059 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:30:12,060 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:30:12,060 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:30:12,061 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:30:12,061 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:30:12,062 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:30:12,063 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:30:12,063 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:30:12,063 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:30:12,063 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:30:12,063 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:30:12,064 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:30:12,064 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:30:12,064 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 11:30:12,064 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:30:12,065 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:30:12,065 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:30:12,065 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:30:12,065 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:30:12,066 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:30:12,066 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:30:12,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:30:12,066 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:30:12,067 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:30:12,067 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:30:12,068 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:30:12,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:30:12,069 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:30:12,069 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:30:12,070 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:30:12,070 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_2f506869-b1a8-464a-b18b-6242ad4966dc/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f506869-b1a8-464a-b18b-6242ad4966dc/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12bbf3623faa1d8cb0ae406b9406d293839854c20d2fb62622ec841c419248fb [2022-11-16 11:30:12,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:30:12,435 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:30:12,447 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:30:12,449 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:30:12,450 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:30:12,451 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f506869-b1a8-464a-b18b-6242ad4966dc/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/09-regions_19-nested_nr.i [2022-11-16 11:30:12,544 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f506869-b1a8-464a-b18b-6242ad4966dc/bin/uautomizer-tPACEb0tL8/data/f6eb8f199/0b39d2890f734d4ebd8e07b6793e9212/FLAG45d3dbbe1 [2022-11-16 11:30:13,389 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:30:13,390 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f506869-b1a8-464a-b18b-6242ad4966dc/sv-benchmarks/c/goblint-regression/09-regions_19-nested_nr.i [2022-11-16 11:30:13,412 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f506869-b1a8-464a-b18b-6242ad4966dc/bin/uautomizer-tPACEb0tL8/data/f6eb8f199/0b39d2890f734d4ebd8e07b6793e9212/FLAG45d3dbbe1 [2022-11-16 11:30:13,577 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f506869-b1a8-464a-b18b-6242ad4966dc/bin/uautomizer-tPACEb0tL8/data/f6eb8f199/0b39d2890f734d4ebd8e07b6793e9212 [2022-11-16 11:30:13,583 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:30:13,585 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:30:13,587 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:30:13,587 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:30:13,593 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:30:13,594 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:30:13" (1/1) ... [2022-11-16 11:30:13,595 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34d576c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:13, skipping insertion in model container [2022-11-16 11:30:13,596 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:30:13" (1/1) ... [2022-11-16 11:30:13,605 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:30:13,657 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:30:14,344 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:30:14,363 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:30:14,477 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:30:14,588 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:30:14,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:14 WrapperNode [2022-11-16 11:30:14,589 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:30:14,590 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:30:14,590 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:30:14,590 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:30:14,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:14" (1/1) ... [2022-11-16 11:30:14,630 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:14" (1/1) ... [2022-11-16 11:30:14,682 INFO L138 Inliner]: procedures = 371, calls = 34, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 231 [2022-11-16 11:30:14,682 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:30:14,683 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:30:14,683 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:30:14,684 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:30:14,709 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:14" (1/1) ... [2022-11-16 11:30:14,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:14" (1/1) ... [2022-11-16 11:30:14,719 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:14" (1/1) ... [2022-11-16 11:30:14,719 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:14" (1/1) ... [2022-11-16 11:30:14,761 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:14" (1/1) ... [2022-11-16 11:30:14,766 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:14" (1/1) ... [2022-11-16 11:30:14,769 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:14" (1/1) ... [2022-11-16 11:30:14,771 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:14" (1/1) ... [2022-11-16 11:30:14,776 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:30:14,777 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:30:14,778 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:30:14,778 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:30:14,779 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:14" (1/1) ... [2022-11-16 11:30:14,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:30:14,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f506869-b1a8-464a-b18b-6242ad4966dc/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:30:14,820 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f506869-b1a8-464a-b18b-6242ad4966dc/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:30:14,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f506869-b1a8-464a-b18b-6242ad4966dc/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:30:14,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:30:14,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 11:30:14,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:30:14,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:30:14,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:30:14,885 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 11:30:14,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 11:30:14,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:30:14,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 11:30:14,886 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-16 11:30:14,886 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-16 11:30:14,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:30:14,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:30:14,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:30:14,889 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:30:15,195 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:30:15,198 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:30:15,834 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:30:15,846 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:30:15,846 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 11:30:15,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:30:15 BoogieIcfgContainer [2022-11-16 11:30:15,849 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:30:15,852 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:30:15,852 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:30:15,856 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:30:15,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:30:13" (1/3) ... [2022-11-16 11:30:15,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20c030a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:30:15, skipping insertion in model container [2022-11-16 11:30:15,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:14" (2/3) ... [2022-11-16 11:30:15,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20c030a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:30:15, skipping insertion in model container [2022-11-16 11:30:15,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:30:15" (3/3) ... [2022-11-16 11:30:15,859 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_19-nested_nr.i [2022-11-16 11:30:15,868 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:30:15,878 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:30:15,878 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-16 11:30:15,878 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:30:16,009 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 11:30:16,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 278 places, 278 transitions, 561 flow [2022-11-16 11:30:16,226 INFO L130 PetriNetUnfolder]: 4/277 cut-off events. [2022-11-16 11:30:16,226 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:30:16,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 281 conditions, 277 events. 4/277 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 113 event pairs, 0 based on Foata normal form. 0/255 useless extension candidates. Maximal degree in co-relation 151. Up to 2 conditions per place. [2022-11-16 11:30:16,236 INFO L82 GeneralOperation]: Start removeDead. Operand has 278 places, 278 transitions, 561 flow [2022-11-16 11:30:16,255 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 277 places, 277 transitions, 557 flow [2022-11-16 11:30:16,270 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:30:16,278 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;@7cfe5bbd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:30:16,281 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-11-16 11:30:16,303 INFO L130 PetriNetUnfolder]: 3/52 cut-off events. [2022-11-16 11:30:16,304 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:30:16,306 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:30:16,307 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] [2022-11-16 11:30:16,308 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:30:16,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:16,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1544077041, now seen corresponding path program 1 times [2022-11-16 11:30:16,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:16,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542867858] [2022-11-16 11:30:16,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:16,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:16,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:16,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:16,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:16,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542867858] [2022-11-16 11:30:16,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542867858] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:16,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:16,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:30:16,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803560147] [2022-11-16 11:30:16,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:16,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 11:30:16,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:16,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 11:30:16,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:30:16,683 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 274 out of 278 [2022-11-16 11:30:16,687 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 277 transitions, 557 flow. Second operand has 2 states, 2 states have (on average 274.5) internal successors, (549), 2 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:16,688 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:30:16,688 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 274 of 278 [2022-11-16 11:30:16,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:30:16,831 INFO L130 PetriNetUnfolder]: 1/274 cut-off events. [2022-11-16 11:30:16,831 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 11:30:16,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 280 conditions, 274 events. 1/274 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 107 event pairs, 0 based on Foata normal form. 3/256 useless extension candidates. Maximal degree in co-relation 149. Up to 2 conditions per place. [2022-11-16 11:30:16,834 INFO L137 encePairwiseOnDemand]: 275/278 looper letters, 1 selfloop transitions, 0 changer transitions 1/274 dead transitions. [2022-11-16 11:30:16,834 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 274 transitions, 553 flow [2022-11-16 11:30:16,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 11:30:16,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-16 11:30:16,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 552 transitions. [2022-11-16 11:30:16,863 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9928057553956835 [2022-11-16 11:30:16,864 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 552 transitions. [2022-11-16 11:30:16,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 552 transitions. [2022-11-16 11:30:16,872 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:30:16,875 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 552 transitions. [2022-11-16 11:30:16,886 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 276.0) internal successors, (552), 2 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:16,899 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 278.0) internal successors, (834), 3 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:16,900 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 278.0) internal successors, (834), 3 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:16,903 INFO L175 Difference]: Start difference. First operand has 277 places, 277 transitions, 557 flow. Second operand 2 states and 552 transitions. [2022-11-16 11:30:16,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 274 transitions, 553 flow [2022-11-16 11:30:16,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 274 transitions, 552 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:30:16,928 INFO L231 Difference]: Finished difference. Result has 277 places, 273 transitions, 548 flow [2022-11-16 11:30:16,931 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=550, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=548, PETRI_PLACES=277, PETRI_TRANSITIONS=273} [2022-11-16 11:30:16,939 INFO L288 CegarLoopForPetriNet]: 277 programPoint places, 0 predicate places. [2022-11-16 11:30:16,940 INFO L495 AbstractCegarLoop]: Abstraction has has 277 places, 273 transitions, 548 flow [2022-11-16 11:30:16,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 274.5) internal successors, (549), 2 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:16,942 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:30:16,943 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] [2022-11-16 11:30:16,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:30:16,944 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:30:16,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:16,946 INFO L85 PathProgramCache]: Analyzing trace with hash -582463024, now seen corresponding path program 1 times [2022-11-16 11:30:16,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:16,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26829627] [2022-11-16 11:30:16,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:16,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:17,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:17,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:17,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:17,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26829627] [2022-11-16 11:30:17,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26829627] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:17,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:17,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:30:17,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003314829] [2022-11-16 11:30:17,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:17,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:30:17,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:17,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:30:17,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:30:17,255 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 278 [2022-11-16 11:30:17,257 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 273 transitions, 548 flow. Second operand has 3 states, 3 states have (on average 268.0) internal successors, (804), 3 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:17,257 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:30:17,258 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 278 [2022-11-16 11:30:17,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:30:17,385 INFO L130 PetriNetUnfolder]: 1/277 cut-off events. [2022-11-16 11:30:17,385 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:30:17,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 294 conditions, 277 events. 1/277 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 105 event pairs, 0 based on Foata normal form. 0/257 useless extension candidates. Maximal degree in co-relation 291. Up to 9 conditions per place. [2022-11-16 11:30:17,387 INFO L137 encePairwiseOnDemand]: 275/278 looper letters, 10 selfloop transitions, 2 changer transitions 0/277 dead transitions. [2022-11-16 11:30:17,387 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 277 transitions, 580 flow [2022-11-16 11:30:17,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:30:17,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:30:17,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 814 transitions. [2022-11-16 11:30:17,391 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9760191846522782 [2022-11-16 11:30:17,392 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 814 transitions. [2022-11-16 11:30:17,392 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 814 transitions. [2022-11-16 11:30:17,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:30:17,393 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 814 transitions. [2022-11-16 11:30:17,396 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 271.3333333333333) internal successors, (814), 3 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:17,400 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:17,401 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:17,402 INFO L175 Difference]: Start difference. First operand has 277 places, 273 transitions, 548 flow. Second operand 3 states and 814 transitions. [2022-11-16 11:30:17,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 277 transitions, 580 flow [2022-11-16 11:30:17,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 277 transitions, 580 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:30:17,414 INFO L231 Difference]: Finished difference. Result has 279 places, 274 transitions, 560 flow [2022-11-16 11:30:17,416 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=548, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=560, PETRI_PLACES=279, PETRI_TRANSITIONS=274} [2022-11-16 11:30:17,417 INFO L288 CegarLoopForPetriNet]: 277 programPoint places, 2 predicate places. [2022-11-16 11:30:17,417 INFO L495 AbstractCegarLoop]: Abstraction has has 279 places, 274 transitions, 560 flow [2022-11-16 11:30:17,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 268.0) internal successors, (804), 3 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:17,418 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:30:17,418 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:17,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:30:17,419 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:30:17,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:17,421 INFO L85 PathProgramCache]: Analyzing trace with hash 2083507397, now seen corresponding path program 1 times [2022-11-16 11:30:17,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:17,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711378642] [2022-11-16 11:30:17,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:17,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:17,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:17,577 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:17,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:17,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711378642] [2022-11-16 11:30:17,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711378642] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:30:17,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [350338653] [2022-11-16 11:30:17,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:17,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:30:17,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f506869-b1a8-464a-b18b-6242ad4966dc/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:30:17,585 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f506869-b1a8-464a-b18b-6242ad4966dc/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:30:17,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f506869-b1a8-464a-b18b-6242ad4966dc/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 11:30:17,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:17,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:30:17,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:30:17,844 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:17,844 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:30:17,897 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:17,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [350338653] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:30:17,898 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:30:17,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-16 11:30:17,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592909327] [2022-11-16 11:30:17,899 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:30:17,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:30:17,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:17,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:30:17,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:30:17,906 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 278 [2022-11-16 11:30:17,921 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 274 transitions, 560 flow. Second operand has 10 states, 10 states have (on average 268.0) internal successors, (2680), 10 states have internal predecessors, (2680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:17,921 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:30:17,921 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 278 [2022-11-16 11:30:17,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:30:18,127 INFO L130 PetriNetUnfolder]: 1/284 cut-off events. [2022-11-16 11:30:18,127 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 11:30:18,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 317 conditions, 284 events. 1/284 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 101 event pairs, 0 based on Foata normal form. 2/267 useless extension candidates. Maximal degree in co-relation 312. Up to 6 conditions per place. [2022-11-16 11:30:18,129 INFO L137 encePairwiseOnDemand]: 272/278 looper letters, 11 selfloop transitions, 9 changer transitions 0/284 dead transitions. [2022-11-16 11:30:18,129 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 284 transitions, 622 flow [2022-11-16 11:30:18,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 11:30:18,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-16 11:30:18,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2416 transitions. [2022-11-16 11:30:18,136 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9656274980015987 [2022-11-16 11:30:18,137 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2416 transitions. [2022-11-16 11:30:18,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2416 transitions. [2022-11-16 11:30:18,139 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:30:18,139 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2416 transitions. [2022-11-16 11:30:18,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 268.44444444444446) internal successors, (2416), 9 states have internal predecessors, (2416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:18,152 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 278.0) internal successors, (2780), 10 states have internal predecessors, (2780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:18,155 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 278.0) internal successors, (2780), 10 states have internal predecessors, (2780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:18,155 INFO L175 Difference]: Start difference. First operand has 279 places, 274 transitions, 560 flow. Second operand 9 states and 2416 transitions. [2022-11-16 11:30:18,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 284 transitions, 622 flow [2022-11-16 11:30:18,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 284 transitions, 620 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:30:18,163 INFO L231 Difference]: Finished difference. Result has 289 places, 280 transitions, 608 flow [2022-11-16 11:30:18,164 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=558, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=608, PETRI_PLACES=289, PETRI_TRANSITIONS=280} [2022-11-16 11:30:18,166 INFO L288 CegarLoopForPetriNet]: 277 programPoint places, 12 predicate places. [2022-11-16 11:30:18,167 INFO L495 AbstractCegarLoop]: Abstraction has has 289 places, 280 transitions, 608 flow [2022-11-16 11:30:18,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 268.0) internal successors, (2680), 10 states have internal predecessors, (2680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:18,169 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:30:18,170 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:18,177 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f506869-b1a8-464a-b18b-6242ad4966dc/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-16 11:30:18,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f506869-b1a8-464a-b18b-6242ad4966dc/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:30:18,382 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:30:18,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:18,382 INFO L85 PathProgramCache]: Analyzing trace with hash -852627547, now seen corresponding path program 2 times [2022-11-16 11:30:18,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:18,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913405398] [2022-11-16 11:30:18,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:18,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:18,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:18,697 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:18,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:18,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913405398] [2022-11-16 11:30:18,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913405398] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:30:18,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1729537666] [2022-11-16 11:30:18,698 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 11:30:18,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:30:18,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f506869-b1a8-464a-b18b-6242ad4966dc/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:30:18,700 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f506869-b1a8-464a-b18b-6242ad4966dc/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:30:18,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f506869-b1a8-464a-b18b-6242ad4966dc/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 11:30:18,854 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 11:30:18,854 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:30:18,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-16 11:30:18,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:30:18,972 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 11 treesize of output 7 [2022-11-16 11:30:19,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:30:19,010 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-16 11:30:19,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:30:19,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:30:19,068 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:30:19,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-16 11:30:19,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:30:19,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:30:19,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:30:19,125 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:30:19,126 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2022-11-16 11:30:19,168 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-16 11:30:19,169 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:30:19,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1729537666] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:19,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:30:19,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2022-11-16 11:30:19,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765930937] [2022-11-16 11:30:19,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:19,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:30:19,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:19,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:30:19,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2022-11-16 11:30:19,174 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 278 [2022-11-16 11:30:19,177 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 280 transitions, 608 flow. Second operand has 8 states, 8 states have (on average 149.375) internal successors, (1195), 8 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:19,177 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:30:19,177 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 278 [2022-11-16 11:30:19,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:30:20,261 INFO L130 PetriNetUnfolder]: 649/2112 cut-off events. [2022-11-16 11:30:20,261 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-16 11:30:20,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3567 conditions, 2112 events. 649/2112 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 11426 event pairs, 648 based on Foata normal form. 0/1861 useless extension candidates. Maximal degree in co-relation 3560. Up to 1405 conditions per place. [2022-11-16 11:30:20,276 INFO L137 encePairwiseOnDemand]: 259/278 looper letters, 108 selfloop transitions, 17 changer transitions 0/278 dead transitions. [2022-11-16 11:30:20,277 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 278 transitions, 854 flow [2022-11-16 11:30:20,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 11:30:20,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-16 11:30:20,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1459 transitions. [2022-11-16 11:30:20,282 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5831334932054356 [2022-11-16 11:30:20,282 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1459 transitions. [2022-11-16 11:30:20,283 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1459 transitions. [2022-11-16 11:30:20,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:30:20,284 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1459 transitions. [2022-11-16 11:30:20,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 162.11111111111111) internal successors, (1459), 9 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:20,295 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 278.0) internal successors, (2780), 10 states have internal predecessors, (2780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:20,296 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 278.0) internal successors, (2780), 10 states have internal predecessors, (2780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:20,297 INFO L175 Difference]: Start difference. First operand has 289 places, 280 transitions, 608 flow. Second operand 9 states and 1459 transitions. [2022-11-16 11:30:20,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 278 transitions, 854 flow [2022-11-16 11:30:20,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 278 transitions, 848 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-11-16 11:30:20,305 INFO L231 Difference]: Finished difference. Result has 294 places, 278 transitions, 632 flow [2022-11-16 11:30:20,306 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=598, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=632, PETRI_PLACES=294, PETRI_TRANSITIONS=278} [2022-11-16 11:30:20,306 INFO L288 CegarLoopForPetriNet]: 277 programPoint places, 17 predicate places. [2022-11-16 11:30:20,307 INFO L495 AbstractCegarLoop]: Abstraction has has 294 places, 278 transitions, 632 flow [2022-11-16 11:30:20,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 149.375) internal successors, (1195), 8 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:20,308 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:30:20,308 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:20,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f506869-b1a8-464a-b18b-6242ad4966dc/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 11:30:20,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f506869-b1a8-464a-b18b-6242ad4966dc/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:30:20,514 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:30:20,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:20,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1238004900, now seen corresponding path program 1 times [2022-11-16 11:30:20,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:20,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864097850] [2022-11-16 11:30:20,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:20,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:20,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:20,752 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:20,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:20,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864097850] [2022-11-16 11:30:20,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864097850] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:30:20,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1199104503] [2022-11-16 11:30:20,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:20,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:30:20,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f506869-b1a8-464a-b18b-6242ad4966dc/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:30:20,755 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f506869-b1a8-464a-b18b-6242ad4966dc/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:30:20,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f506869-b1a8-464a-b18b-6242ad4966dc/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 11:30:20,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:20,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 11:30:20,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:30:20,959 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:20,959 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:30:21,074 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:21,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1199104503] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:30:21,075 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:30:21,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-16 11:30:21,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186223599] [2022-11-16 11:30:21,075 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:30:21,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 11:30:21,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:21,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 11:30:21,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:30:21,084 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 278 [2022-11-16 11:30:21,090 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 278 transitions, 632 flow. Second operand has 18 states, 18 states have (on average 268.22222222222223) internal successors, (4828), 18 states have internal predecessors, (4828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:21,090 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:30:21,090 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 278 [2022-11-16 11:30:21,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:30:21,402 INFO L130 PetriNetUnfolder]: 1/302 cut-off events. [2022-11-16 11:30:21,402 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-11-16 11:30:21,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 415 conditions, 302 events. 1/302 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 103 event pairs, 0 based on Foata normal form. 4/289 useless extension candidates. Maximal degree in co-relation 407. Up to 11 conditions per place. [2022-11-16 11:30:21,404 INFO L137 encePairwiseOnDemand]: 272/278 looper letters, 19 selfloop transitions, 21 changer transitions 0/302 dead transitions. [2022-11-16 11:30:21,404 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 302 transitions, 812 flow [2022-11-16 11:30:21,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 11:30:21,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-16 11:30:21,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 5630 transitions. [2022-11-16 11:30:21,417 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9643713600548133 [2022-11-16 11:30:21,417 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 5630 transitions. [2022-11-16 11:30:21,418 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 5630 transitions. [2022-11-16 11:30:21,422 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:30:21,422 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 5630 transitions. [2022-11-16 11:30:21,436 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 268.0952380952381) internal successors, (5630), 21 states have internal predecessors, (5630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:21,448 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 278.0) internal successors, (6116), 22 states have internal predecessors, (6116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:21,451 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 278.0) internal successors, (6116), 22 states have internal predecessors, (6116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:21,452 INFO L175 Difference]: Start difference. First operand has 294 places, 278 transitions, 632 flow. Second operand 21 states and 5630 transitions. [2022-11-16 11:30:21,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 302 transitions, 812 flow [2022-11-16 11:30:21,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 302 transitions, 778 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-11-16 11:30:21,460 INFO L231 Difference]: Finished difference. Result has 311 places, 291 transitions, 728 flow [2022-11-16 11:30:21,461 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=598, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=728, PETRI_PLACES=311, PETRI_TRANSITIONS=291} [2022-11-16 11:30:21,462 INFO L288 CegarLoopForPetriNet]: 277 programPoint places, 34 predicate places. [2022-11-16 11:30:21,462 INFO L495 AbstractCegarLoop]: Abstraction has has 311 places, 291 transitions, 728 flow [2022-11-16 11:30:21,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 268.22222222222223) internal successors, (4828), 18 states have internal predecessors, (4828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:21,464 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:30:21,465 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:21,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f506869-b1a8-464a-b18b-6242ad4966dc/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 11:30:21,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f506869-b1a8-464a-b18b-6242ad4966dc/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:30:21,673 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:30:21,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:21,674 INFO L85 PathProgramCache]: Analyzing trace with hash -140987804, now seen corresponding path program 2 times [2022-11-16 11:30:21,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:21,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321200019] [2022-11-16 11:30:21,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:21,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:21,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:22,140 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:22,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:22,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321200019] [2022-11-16 11:30:22,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321200019] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:30:22,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1547404748] [2022-11-16 11:30:22,141 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 11:30:22,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:30:22,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f506869-b1a8-464a-b18b-6242ad4966dc/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:30:22,143 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f506869-b1a8-464a-b18b-6242ad4966dc/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:30:22,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f506869-b1a8-464a-b18b-6242ad4966dc/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 11:30:22,277 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 11:30:22,277 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:30:22,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-16 11:30:22,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:30:22,312 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 13 treesize of output 9 [2022-11-16 11:30:22,342 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 23 treesize of output 22 [2022-11-16 11:30:22,382 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:30:22,383 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 32 treesize of output 34 [2022-11-16 11:30:22,449 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:30:22,451 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 41 treesize of output 46 [2022-11-16 11:30:22,496 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-16 11:30:22,496 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:30:22,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1547404748] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:22,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:30:22,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2022-11-16 11:30:22,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846249896] [2022-11-16 11:30:22,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:22,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:30:22,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:22,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:30:22,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:30:22,509 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 278 [2022-11-16 11:30:22,511 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 291 transitions, 728 flow. Second operand has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:22,511 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:30:22,512 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 278 [2022-11-16 11:30:22,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:30:23,547 INFO L130 PetriNetUnfolder]: 649/2130 cut-off events. [2022-11-16 11:30:23,547 INFO L131 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2022-11-16 11:30:23,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3642 conditions, 2130 events. 649/2130 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 11467 event pairs, 648 based on Foata normal form. 0/1881 useless extension candidates. Maximal degree in co-relation 3630. Up to 1406 conditions per place. [2022-11-16 11:30:23,564 INFO L137 encePairwiseOnDemand]: 266/278 looper letters, 109 selfloop transitions, 10 changer transitions 0/289 dead transitions. [2022-11-16 11:30:23,564 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 289 transitions, 962 flow [2022-11-16 11:30:23,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:30:23,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:30:23,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1033 transitions. [2022-11-16 11:30:23,569 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6193045563549161 [2022-11-16 11:30:23,570 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1033 transitions. [2022-11-16 11:30:23,570 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1033 transitions. [2022-11-16 11:30:23,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:30:23,571 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1033 transitions. [2022-11-16 11:30:23,575 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 172.16666666666666) internal successors, (1033), 6 states have internal predecessors, (1033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:23,579 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:23,581 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:23,581 INFO L175 Difference]: Start difference. First operand has 311 places, 291 transitions, 728 flow. Second operand 6 states and 1033 transitions. [2022-11-16 11:30:23,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 289 transitions, 962 flow [2022-11-16 11:30:23,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 289 transitions, 938 flow, removed 6 selfloop flow, removed 6 redundant places. [2022-11-16 11:30:23,593 INFO L231 Difference]: Finished difference. Result has 308 places, 289 transitions, 720 flow [2022-11-16 11:30:23,594 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=700, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=720, PETRI_PLACES=308, PETRI_TRANSITIONS=289} [2022-11-16 11:30:23,595 INFO L288 CegarLoopForPetriNet]: 277 programPoint places, 31 predicate places. [2022-11-16 11:30:23,595 INFO L495 AbstractCegarLoop]: Abstraction has has 308 places, 289 transitions, 720 flow [2022-11-16 11:30:23,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:23,596 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:30:23,596 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:23,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f506869-b1a8-464a-b18b-6242ad4966dc/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 11:30:23,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f506869-b1a8-464a-b18b-6242ad4966dc/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-16 11:30:23,803 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:30:23,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:23,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1493118986, now seen corresponding path program 1 times [2022-11-16 11:30:23,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:23,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41804150] [2022-11-16 11:30:23,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:23,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:23,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:24,335 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:24,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:24,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41804150] [2022-11-16 11:30:24,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41804150] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:30:24,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062006238] [2022-11-16 11:30:24,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:24,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:30:24,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f506869-b1a8-464a-b18b-6242ad4966dc/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:30:24,338 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f506869-b1a8-464a-b18b-6242ad4966dc/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:30:24,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f506869-b1a8-464a-b18b-6242ad4966dc/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 11:30:24,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:24,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-16 11:30:24,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:30:24,625 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:24,625 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:30:24,888 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:24,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1062006238] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:30:24,888 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:30:24,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-11-16 11:30:24,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273624235] [2022-11-16 11:30:24,889 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:30:24,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-16 11:30:24,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:24,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-16 11:30:24,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:30:24,898 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 278 [2022-11-16 11:30:24,913 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 289 transitions, 720 flow. Second operand has 23 states, 23 states have (on average 268.39130434782606) internal successors, (6173), 23 states have internal predecessors, (6173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:24,919 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:30:24,920 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 278 [2022-11-16 11:30:24,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:30:25,356 INFO L130 PetriNetUnfolder]: 1/315 cut-off events. [2022-11-16 11:30:25,357 INFO L131 PetriNetUnfolder]: For 123/123 co-relation queries the response was YES. [2022-11-16 11:30:25,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 499 conditions, 315 events. 1/315 cut-off events. For 123/123 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 100 event pairs, 0 based on Foata normal form. 3/303 useless extension candidates. Maximal degree in co-relation 486. Up to 16 conditions per place. [2022-11-16 11:30:25,358 INFO L137 encePairwiseOnDemand]: 272/278 looper letters, 25 selfloop transitions, 30 changer transitions 0/315 dead transitions. [2022-11-16 11:30:25,359 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 315 transitions, 970 flow [2022-11-16 11:30:25,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-16 11:30:25,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-16 11:30:25,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 8038 transitions. [2022-11-16 11:30:25,375 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.96378896882494 [2022-11-16 11:30:25,375 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 8038 transitions. [2022-11-16 11:30:25,376 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 8038 transitions. [2022-11-16 11:30:25,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:30:25,381 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 8038 transitions. [2022-11-16 11:30:25,398 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 267.93333333333334) internal successors, (8038), 30 states have internal predecessors, (8038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:25,414 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 278.0) internal successors, (8618), 31 states have internal predecessors, (8618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:25,418 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 278.0) internal successors, (8618), 31 states have internal predecessors, (8618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:25,418 INFO L175 Difference]: Start difference. First operand has 308 places, 289 transitions, 720 flow. Second operand 30 states and 8038 transitions. [2022-11-16 11:30:25,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 315 transitions, 970 flow [2022-11-16 11:30:25,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 315 transitions, 950 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:30:25,458 INFO L231 Difference]: Finished difference. Result has 336 places, 299 transitions, 852 flow [2022-11-16 11:30:25,459 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=700, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=852, PETRI_PLACES=336, PETRI_TRANSITIONS=299} [2022-11-16 11:30:25,460 INFO L288 CegarLoopForPetriNet]: 277 programPoint places, 59 predicate places. [2022-11-16 11:30:25,460 INFO L495 AbstractCegarLoop]: Abstraction has has 336 places, 299 transitions, 852 flow [2022-11-16 11:30:25,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 268.39130434782606) internal successors, (6173), 23 states have internal predecessors, (6173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:25,462 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:30:25,463 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:25,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f506869-b1a8-464a-b18b-6242ad4966dc/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 11:30:25,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f506869-b1a8-464a-b18b-6242ad4966dc/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-16 11:30:25,669 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:30:25,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:25,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1721236511, now seen corresponding path program 2 times [2022-11-16 11:30:25,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:25,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948929816] [2022-11-16 11:30:25,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:25,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:25,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:26,440 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:30:26,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:26,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948929816] [2022-11-16 11:30:26,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948929816] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:26,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:26,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:30:26,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506005709] [2022-11-16 11:30:26,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:26,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:30:26,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:26,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:30:26,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:30:26,445 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 278 [2022-11-16 11:30:26,446 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 336 places, 299 transitions, 852 flow. Second operand has 6 states, 6 states have (on average 153.0) internal successors, (918), 6 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:26,446 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:30:26,447 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 278 [2022-11-16 11:30:26,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:30:27,488 INFO L130 PetriNetUnfolder]: 820/2540 cut-off events. [2022-11-16 11:30:27,488 INFO L131 PetriNetUnfolder]: For 118/118 co-relation queries the response was YES. [2022-11-16 11:30:27,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4473 conditions, 2540 events. 820/2540 cut-off events. For 118/118 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 14251 event pairs, 819 based on Foata normal form. 0/2261 useless extension candidates. Maximal degree in co-relation 4457. Up to 1764 conditions per place. [2022-11-16 11:30:27,506 INFO L137 encePairwiseOnDemand]: 272/278 looper letters, 116 selfloop transitions, 5 changer transitions 0/298 dead transitions. [2022-11-16 11:30:27,506 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 298 transitions, 1092 flow [2022-11-16 11:30:27,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:30:27,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:30:27,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1016 transitions. [2022-11-16 11:30:27,510 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6091127098321343 [2022-11-16 11:30:27,510 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1016 transitions. [2022-11-16 11:30:27,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1016 transitions. [2022-11-16 11:30:27,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:30:27,512 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1016 transitions. [2022-11-16 11:30:27,514 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 169.33333333333334) internal successors, (1016), 6 states have internal predecessors, (1016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:27,517 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:27,518 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:27,518 INFO L175 Difference]: Start difference. First operand has 336 places, 299 transitions, 852 flow. Second operand 6 states and 1016 transitions. [2022-11-16 11:30:27,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 298 transitions, 1092 flow [2022-11-16 11:30:27,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 298 transitions, 1046 flow, removed 5 selfloop flow, removed 18 redundant places. [2022-11-16 11:30:27,528 INFO L231 Difference]: Finished difference. Result has 322 places, 298 transitions, 814 flow [2022-11-16 11:30:27,528 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=804, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=293, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=814, PETRI_PLACES=322, PETRI_TRANSITIONS=298} [2022-11-16 11:30:27,532 INFO L288 CegarLoopForPetriNet]: 277 programPoint places, 45 predicate places. [2022-11-16 11:30:27,532 INFO L495 AbstractCegarLoop]: Abstraction has has 322 places, 298 transitions, 814 flow [2022-11-16 11:30:27,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 153.0) internal successors, (918), 6 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:27,533 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:30:27,533 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:27,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:30:27,534 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:30:27,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:27,534 INFO L85 PathProgramCache]: Analyzing trace with hash -764773287, now seen corresponding path program 1 times [2022-11-16 11:30:27,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:27,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360739199] [2022-11-16 11:30:27,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:27,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:27,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:28,304 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:30:28,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:28,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360739199] [2022-11-16 11:30:28,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360739199] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:28,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:28,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:30:28,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454416703] [2022-11-16 11:30:28,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:28,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:30:28,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:28,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:30:28,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:30:28,312 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 278 [2022-11-16 11:30:28,314 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 298 transitions, 814 flow. Second operand has 6 states, 6 states have (on average 157.5) internal successors, (945), 6 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:28,314 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:30:28,314 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 278 [2022-11-16 11:30:28,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:30:30,165 INFO L130 PetriNetUnfolder]: 1446/4311 cut-off events. [2022-11-16 11:30:30,165 INFO L131 PetriNetUnfolder]: For 126/126 co-relation queries the response was YES. [2022-11-16 11:30:30,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7532 conditions, 4311 events. 1446/4311 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 29766 event pairs, 100 based on Foata normal form. 0/3857 useless extension candidates. Maximal degree in co-relation 7515. Up to 1891 conditions per place. [2022-11-16 11:30:30,187 INFO L137 encePairwiseOnDemand]: 250/278 looper letters, 217 selfloop transitions, 74 changer transitions 0/470 dead transitions. [2022-11-16 11:30:30,188 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 326 places, 470 transitions, 1740 flow [2022-11-16 11:30:30,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:30:30,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:30:30,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1199 transitions. [2022-11-16 11:30:30,191 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7188249400479616 [2022-11-16 11:30:30,192 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1199 transitions. [2022-11-16 11:30:30,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1199 transitions. [2022-11-16 11:30:30,193 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:30:30,193 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1199 transitions. [2022-11-16 11:30:30,195 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 199.83333333333334) internal successors, (1199), 6 states have internal predecessors, (1199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:30,198 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:30,199 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:30,199 INFO L175 Difference]: Start difference. First operand has 322 places, 298 transitions, 814 flow. Second operand 6 states and 1199 transitions. [2022-11-16 11:30:30,199 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 326 places, 470 transitions, 1740 flow [2022-11-16 11:30:30,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 470 transitions, 1730 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:30:30,209 INFO L231 Difference]: Finished difference. Result has 326 places, 365 transitions, 1276 flow [2022-11-16 11:30:30,210 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=802, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1276, PETRI_PLACES=326, PETRI_TRANSITIONS=365} [2022-11-16 11:30:30,211 INFO L288 CegarLoopForPetriNet]: 277 programPoint places, 49 predicate places. [2022-11-16 11:30:30,211 INFO L495 AbstractCegarLoop]: Abstraction has has 326 places, 365 transitions, 1276 flow [2022-11-16 11:30:30,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 157.5) internal successors, (945), 6 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:30,212 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:30:30,212 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:30,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:30:30,213 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:30:30,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:30,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1532564956, now seen corresponding path program 1 times [2022-11-16 11:30:30,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:30,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388901414] [2022-11-16 11:30:30,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:30,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:30,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:31,053 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:30:31,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:31,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388901414] [2022-11-16 11:30:31,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388901414] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:31,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:31,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:30:31,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838949775] [2022-11-16 11:30:31,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:31,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:30:31,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:31,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:30:31,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:30:31,059 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 278 [2022-11-16 11:30:31,061 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 365 transitions, 1276 flow. Second operand has 6 states, 6 states have (on average 168.33333333333334) internal successors, (1010), 6 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:31,061 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:30:31,061 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 278 [2022-11-16 11:30:31,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:30:32,647 INFO L130 PetriNetUnfolder]: 1207/3991 cut-off events. [2022-11-16 11:30:32,647 INFO L131 PetriNetUnfolder]: For 1353/1441 co-relation queries the response was YES. [2022-11-16 11:30:32,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8098 conditions, 3991 events. 1207/3991 cut-off events. For 1353/1441 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 27045 event pairs, 792 based on Foata normal form. 0/3589 useless extension candidates. Maximal degree in co-relation 8077. Up to 2566 conditions per place. [2022-11-16 11:30:32,682 INFO L137 encePairwiseOnDemand]: 272/278 looper letters, 169 selfloop transitions, 5 changer transitions 0/364 dead transitions. [2022-11-16 11:30:32,682 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 364 transitions, 1622 flow [2022-11-16 11:30:32,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:30:32,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:30:32,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1079 transitions. [2022-11-16 11:30:32,686 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6468824940047961 [2022-11-16 11:30:32,687 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1079 transitions. [2022-11-16 11:30:32,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1079 transitions. [2022-11-16 11:30:32,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:30:32,688 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1079 transitions. [2022-11-16 11:30:32,691 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 179.83333333333334) internal successors, (1079), 6 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:32,695 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:32,696 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:32,696 INFO L175 Difference]: Start difference. First operand has 326 places, 365 transitions, 1276 flow. Second operand 6 states and 1079 transitions. [2022-11-16 11:30:32,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 364 transitions, 1622 flow [2022-11-16 11:30:32,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 364 transitions, 1622 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:30:32,711 INFO L231 Difference]: Finished difference. Result has 330 places, 364 transitions, 1284 flow [2022-11-16 11:30:32,712 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=1274, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=364, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=359, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1284, PETRI_PLACES=330, PETRI_TRANSITIONS=364} [2022-11-16 11:30:32,713 INFO L288 CegarLoopForPetriNet]: 277 programPoint places, 53 predicate places. [2022-11-16 11:30:32,714 INFO L495 AbstractCegarLoop]: Abstraction has has 330 places, 364 transitions, 1284 flow [2022-11-16 11:30:32,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 168.33333333333334) internal successors, (1010), 6 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:32,714 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:30:32,715 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:32,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:30:32,715 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:30:32,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:32,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1950203685, now seen corresponding path program 1 times [2022-11-16 11:30:32,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:32,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214633937] [2022-11-16 11:30:32,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:32,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:32,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:33,421 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:30:33,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:33,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214633937] [2022-11-16 11:30:33,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214633937] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:33,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:33,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:30:33,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966431304] [2022-11-16 11:30:33,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:33,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:30:33,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:33,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:30:33,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:30:33,425 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 278 [2022-11-16 11:30:33,427 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 364 transitions, 1284 flow. Second operand has 6 states, 6 states have (on average 167.5) internal successors, (1005), 6 states have internal predecessors, (1005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:33,427 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:30:33,427 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 278 [2022-11-16 11:30:33,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:30:34,956 INFO L130 PetriNetUnfolder]: 1207/3990 cut-off events. [2022-11-16 11:30:34,956 INFO L131 PetriNetUnfolder]: For 1353/1441 co-relation queries the response was YES. [2022-11-16 11:30:35,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8104 conditions, 3990 events. 1207/3990 cut-off events. For 1353/1441 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 27031 event pairs, 792 based on Foata normal form. 0/3589 useless extension candidates. Maximal degree in co-relation 8082. Up to 2568 conditions per place. [2022-11-16 11:30:35,115 INFO L137 encePairwiseOnDemand]: 272/278 looper letters, 170 selfloop transitions, 5 changer transitions 0/363 dead transitions. [2022-11-16 11:30:35,117 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 363 transitions, 1632 flow [2022-11-16 11:30:35,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:30:35,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:30:35,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1068 transitions. [2022-11-16 11:30:35,122 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6402877697841727 [2022-11-16 11:30:35,122 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1068 transitions. [2022-11-16 11:30:35,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1068 transitions. [2022-11-16 11:30:35,123 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:30:35,123 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1068 transitions. [2022-11-16 11:30:35,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 178.0) internal successors, (1068), 6 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:35,129 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:35,130 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:35,130 INFO L175 Difference]: Start difference. First operand has 330 places, 364 transitions, 1284 flow. Second operand 6 states and 1068 transitions. [2022-11-16 11:30:35,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 363 transitions, 1632 flow [2022-11-16 11:30:35,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 363 transitions, 1622 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:30:35,146 INFO L231 Difference]: Finished difference. Result has 329 places, 363 transitions, 1282 flow [2022-11-16 11:30:35,146 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=1272, PETRI_DIFFERENCE_MINUEND_PLACES=324, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=363, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=358, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1282, PETRI_PLACES=329, PETRI_TRANSITIONS=363} [2022-11-16 11:30:35,147 INFO L288 CegarLoopForPetriNet]: 277 programPoint places, 52 predicate places. [2022-11-16 11:30:35,147 INFO L495 AbstractCegarLoop]: Abstraction has has 329 places, 363 transitions, 1282 flow [2022-11-16 11:30:35,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 167.5) internal successors, (1005), 6 states have internal predecessors, (1005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:35,148 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:30:35,149 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:35,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:30:35,149 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:30:35,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:35,150 INFO L85 PathProgramCache]: Analyzing trace with hash -2052367616, now seen corresponding path program 1 times [2022-11-16 11:30:35,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:35,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158490631] [2022-11-16 11:30:35,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:35,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:35,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:36,356 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:30:36,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:36,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158490631] [2022-11-16 11:30:36,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158490631] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:36,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:36,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:30:36,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061935227] [2022-11-16 11:30:36,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:36,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:30:36,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:36,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:30:36,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:30:36,361 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 278 [2022-11-16 11:30:36,362 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 363 transitions, 1282 flow. Second operand has 6 states, 6 states have (on average 168.33333333333334) internal successors, (1010), 6 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:36,363 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:30:36,363 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 278 [2022-11-16 11:30:36,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:30:37,726 INFO L130 PetriNetUnfolder]: 1207/3989 cut-off events. [2022-11-16 11:30:37,726 INFO L131 PetriNetUnfolder]: For 1356/1444 co-relation queries the response was YES. [2022-11-16 11:30:37,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8102 conditions, 3989 events. 1207/3989 cut-off events. For 1356/1444 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 27047 event pairs, 792 based on Foata normal form. 0/3589 useless extension candidates. Maximal degree in co-relation 8080. Up to 2567 conditions per place. [2022-11-16 11:30:37,751 INFO L137 encePairwiseOnDemand]: 272/278 looper letters, 169 selfloop transitions, 5 changer transitions 0/362 dead transitions. [2022-11-16 11:30:37,752 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 362 transitions, 1628 flow [2022-11-16 11:30:37,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:30:37,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:30:37,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1067 transitions. [2022-11-16 11:30:37,755 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6396882494004796 [2022-11-16 11:30:37,755 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1067 transitions. [2022-11-16 11:30:37,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1067 transitions. [2022-11-16 11:30:37,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:30:37,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1067 transitions. [2022-11-16 11:30:37,758 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 177.83333333333334) internal successors, (1067), 6 states have internal predecessors, (1067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:37,761 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:37,762 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:37,763 INFO L175 Difference]: Start difference. First operand has 329 places, 363 transitions, 1282 flow. Second operand 6 states and 1067 transitions. [2022-11-16 11:30:37,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 362 transitions, 1628 flow [2022-11-16 11:30:37,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 362 transitions, 1618 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:30:37,778 INFO L231 Difference]: Finished difference. Result has 328 places, 362 transitions, 1280 flow [2022-11-16 11:30:37,779 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=1270, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=357, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1280, PETRI_PLACES=328, PETRI_TRANSITIONS=362} [2022-11-16 11:30:37,779 INFO L288 CegarLoopForPetriNet]: 277 programPoint places, 51 predicate places. [2022-11-16 11:30:37,780 INFO L495 AbstractCegarLoop]: Abstraction has has 328 places, 362 transitions, 1280 flow [2022-11-16 11:30:37,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 168.33333333333334) internal successors, (1010), 6 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:37,780 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:30:37,781 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:37,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 11:30:37,781 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:30:37,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:37,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1139996680, now seen corresponding path program 1 times [2022-11-16 11:30:37,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:37,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250919065] [2022-11-16 11:30:37,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:37,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:37,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:38,668 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:30:38,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:38,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250919065] [2022-11-16 11:30:38,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250919065] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:38,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:38,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:30:38,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955312498] [2022-11-16 11:30:38,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:38,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:30:38,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:38,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:30:38,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:30:38,673 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 278 [2022-11-16 11:30:38,674 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 362 transitions, 1280 flow. Second operand has 6 states, 6 states have (on average 171.83333333333334) internal successors, (1031), 6 states have internal predecessors, (1031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:38,674 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:30:38,674 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 278 [2022-11-16 11:30:38,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:30:41,131 INFO L130 PetriNetUnfolder]: 1524/4615 cut-off events. [2022-11-16 11:30:41,132 INFO L131 PetriNetUnfolder]: For 1496/1597 co-relation queries the response was YES. [2022-11-16 11:30:41,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9519 conditions, 4615 events. 1524/4615 cut-off events. For 1496/1597 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 31613 event pairs, 624 based on Foata normal form. 16/4210 useless extension candidates. Maximal degree in co-relation 9497. Up to 2609 conditions per place. [2022-11-16 11:30:41,164 INFO L137 encePairwiseOnDemand]: 255/278 looper letters, 251 selfloop transitions, 130 changer transitions 0/571 dead transitions. [2022-11-16 11:30:41,164 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 571 transitions, 2836 flow [2022-11-16 11:30:41,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:30:41,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:30:41,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1226 transitions. [2022-11-16 11:30:41,169 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7350119904076738 [2022-11-16 11:30:41,169 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1226 transitions. [2022-11-16 11:30:41,169 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1226 transitions. [2022-11-16 11:30:41,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:30:41,170 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1226 transitions. [2022-11-16 11:30:41,174 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 204.33333333333334) internal successors, (1226), 6 states have internal predecessors, (1226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:41,177 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:41,178 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:41,178 INFO L175 Difference]: Start difference. First operand has 328 places, 362 transitions, 1280 flow. Second operand 6 states and 1226 transitions. [2022-11-16 11:30:41,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 571 transitions, 2836 flow [2022-11-16 11:30:41,190 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 571 transitions, 2826 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:30:41,201 INFO L231 Difference]: Finished difference. Result has 333 places, 491 transitions, 2498 flow [2022-11-16 11:30:41,202 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=1270, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=325, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2498, PETRI_PLACES=333, PETRI_TRANSITIONS=491} [2022-11-16 11:30:41,202 INFO L288 CegarLoopForPetriNet]: 277 programPoint places, 56 predicate places. [2022-11-16 11:30:41,203 INFO L495 AbstractCegarLoop]: Abstraction has has 333 places, 491 transitions, 2498 flow [2022-11-16 11:30:41,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 171.83333333333334) internal successors, (1031), 6 states have internal predecessors, (1031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:41,204 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:30:41,204 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:41,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 11:30:41,205 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:30:41,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:41,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1098592927, now seen corresponding path program 1 times [2022-11-16 11:30:41,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:41,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498788661] [2022-11-16 11:30:41,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:41,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:41,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:42,072 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:30:42,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:42,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498788661] [2022-11-16 11:30:42,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498788661] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:42,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:42,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:30:42,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112872391] [2022-11-16 11:30:42,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:42,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:30:42,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:42,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:30:42,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:30:42,076 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 278 [2022-11-16 11:30:42,077 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 491 transitions, 2498 flow. Second operand has 6 states, 6 states have (on average 172.83333333333334) internal successors, (1037), 6 states have internal predecessors, (1037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:42,077 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:30:42,078 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 278 [2022-11-16 11:30:42,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:30:44,177 INFO L130 PetriNetUnfolder]: 1622/5401 cut-off events. [2022-11-16 11:30:44,177 INFO L131 PetriNetUnfolder]: For 3888/4083 co-relation queries the response was YES. [2022-11-16 11:30:44,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12514 conditions, 5401 events. 1622/5401 cut-off events. For 3888/4083 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 40607 event pairs, 523 based on Foata normal form. 8/5037 useless extension candidates. Maximal degree in co-relation 12488. Up to 2869 conditions per place. [2022-11-16 11:30:44,221 INFO L137 encePairwiseOnDemand]: 256/278 looper letters, 375 selfloop transitions, 129 changer transitions 5/699 dead transitions. [2022-11-16 11:30:44,222 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 338 places, 699 transitions, 4554 flow [2022-11-16 11:30:44,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:30:44,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:30:44,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1225 transitions. [2022-11-16 11:30:44,224 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7344124700239808 [2022-11-16 11:30:44,224 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1225 transitions. [2022-11-16 11:30:44,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1225 transitions. [2022-11-16 11:30:44,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:30:44,225 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1225 transitions. [2022-11-16 11:30:44,227 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 204.16666666666666) internal successors, (1225), 6 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:44,231 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:44,232 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:44,232 INFO L175 Difference]: Start difference. First operand has 333 places, 491 transitions, 2498 flow. Second operand 6 states and 1225 transitions. [2022-11-16 11:30:44,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 338 places, 699 transitions, 4554 flow [2022-11-16 11:30:44,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 699 transitions, 4554 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:30:44,255 INFO L231 Difference]: Finished difference. Result has 343 places, 618 transitions, 3964 flow [2022-11-16 11:30:44,256 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2498, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=491, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=455, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3964, PETRI_PLACES=343, PETRI_TRANSITIONS=618} [2022-11-16 11:30:44,257 INFO L288 CegarLoopForPetriNet]: 277 programPoint places, 66 predicate places. [2022-11-16 11:30:44,257 INFO L495 AbstractCegarLoop]: Abstraction has has 343 places, 618 transitions, 3964 flow [2022-11-16 11:30:44,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 172.83333333333334) internal successors, (1037), 6 states have internal predecessors, (1037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:44,258 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:30:44,258 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:44,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 11:30:44,258 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:30:44,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:44,260 INFO L85 PathProgramCache]: Analyzing trace with hash -421619158, now seen corresponding path program 1 times [2022-11-16 11:30:44,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:44,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767911113] [2022-11-16 11:30:44,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:44,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:44,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:45,126 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:30:45,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:45,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767911113] [2022-11-16 11:30:45,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767911113] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:45,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:45,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:30:45,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002047142] [2022-11-16 11:30:45,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:45,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:30:45,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:45,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:30:45,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:30:45,130 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 278 [2022-11-16 11:30:45,131 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 343 places, 618 transitions, 3964 flow. Second operand has 6 states, 6 states have (on average 168.16666666666666) internal successors, (1009), 6 states have internal predecessors, (1009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:45,132 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:30:45,132 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 278 [2022-11-16 11:30:45,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:30:46,741 INFO L130 PetriNetUnfolder]: 1747/5574 cut-off events. [2022-11-16 11:30:46,741 INFO L131 PetriNetUnfolder]: For 5717/5745 co-relation queries the response was YES. [2022-11-16 11:30:46,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14911 conditions, 5574 events. 1747/5574 cut-off events. For 5717/5745 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 40880 event pairs, 657 based on Foata normal form. 0/5269 useless extension candidates. Maximal degree in co-relation 14880. Up to 3519 conditions per place. [2022-11-16 11:30:46,799 INFO L137 encePairwiseOnDemand]: 259/278 looper letters, 445 selfloop transitions, 84 changer transitions 0/716 dead transitions. [2022-11-16 11:30:46,799 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 347 places, 716 transitions, 5536 flow [2022-11-16 11:30:46,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:30:46,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:30:46,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1139 transitions. [2022-11-16 11:30:46,802 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6828537170263789 [2022-11-16 11:30:46,802 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1139 transitions. [2022-11-16 11:30:46,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1139 transitions. [2022-11-16 11:30:46,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:30:46,803 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1139 transitions. [2022-11-16 11:30:46,806 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 189.83333333333334) internal successors, (1139), 6 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:46,809 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:46,810 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:46,810 INFO L175 Difference]: Start difference. First operand has 343 places, 618 transitions, 3964 flow. Second operand 6 states and 1139 transitions. [2022-11-16 11:30:46,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 347 places, 716 transitions, 5536 flow [2022-11-16 11:30:46,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 716 transitions, 5282 flow, removed 127 selfloop flow, removed 0 redundant places. [2022-11-16 11:30:46,857 INFO L231 Difference]: Finished difference. Result has 352 places, 689 transitions, 4500 flow [2022-11-16 11:30:46,858 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3716, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=618, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=570, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4500, PETRI_PLACES=352, PETRI_TRANSITIONS=689} [2022-11-16 11:30:46,858 INFO L288 CegarLoopForPetriNet]: 277 programPoint places, 75 predicate places. [2022-11-16 11:30:46,859 INFO L495 AbstractCegarLoop]: Abstraction has has 352 places, 689 transitions, 4500 flow [2022-11-16 11:30:46,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 168.16666666666666) internal successors, (1009), 6 states have internal predecessors, (1009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:46,859 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:30:46,860 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:46,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 11:30:46,860 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:30:46,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:46,861 INFO L85 PathProgramCache]: Analyzing trace with hash 846516053, now seen corresponding path program 1 times [2022-11-16 11:30:46,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:46,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304038243] [2022-11-16 11:30:46,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:46,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:46,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:49,670 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:30:49,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:49,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304038243] [2022-11-16 11:30:49,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304038243] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:49,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:49,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-16 11:30:49,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271099267] [2022-11-16 11:30:49,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:49,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 11:30:49,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:49,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 11:30:49,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2022-11-16 11:30:49,674 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 278 [2022-11-16 11:30:49,677 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 689 transitions, 4500 flow. Second operand has 16 states, 16 states have (on average 134.125) internal successors, (2146), 16 states have internal predecessors, (2146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:49,678 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:30:49,678 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 278 [2022-11-16 11:30:49,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:30:54,528 INFO L130 PetriNetUnfolder]: 2459/7015 cut-off events. [2022-11-16 11:30:54,528 INFO L131 PetriNetUnfolder]: For 8741/8818 co-relation queries the response was YES. [2022-11-16 11:30:54,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20983 conditions, 7015 events. 2459/7015 cut-off events. For 8741/8818 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 53168 event pairs, 412 based on Foata normal form. 79/6777 useless extension candidates. Maximal degree in co-relation 20947. Up to 2799 conditions per place. [2022-11-16 11:30:54,587 INFO L137 encePairwiseOnDemand]: 251/278 looper letters, 693 selfloop transitions, 179 changer transitions 12/1042 dead transitions. [2022-11-16 11:30:54,588 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 375 places, 1042 transitions, 8204 flow [2022-11-16 11:30:54,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 11:30:54,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-11-16 11:30:54,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 3547 transitions. [2022-11-16 11:30:54,595 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5316247002398081 [2022-11-16 11:30:54,596 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 3547 transitions. [2022-11-16 11:30:54,596 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 3547 transitions. [2022-11-16 11:30:54,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:30:54,598 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 3547 transitions. [2022-11-16 11:30:54,604 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 147.79166666666666) internal successors, (3547), 24 states have internal predecessors, (3547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:54,614 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 278.0) internal successors, (6950), 25 states have internal predecessors, (6950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:54,617 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 278.0) internal successors, (6950), 25 states have internal predecessors, (6950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:54,618 INFO L175 Difference]: Start difference. First operand has 352 places, 689 transitions, 4500 flow. Second operand 24 states and 3547 transitions. [2022-11-16 11:30:54,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 375 places, 1042 transitions, 8204 flow [2022-11-16 11:30:54,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 375 places, 1042 transitions, 8132 flow, removed 36 selfloop flow, removed 0 redundant places. [2022-11-16 11:30:54,718 INFO L231 Difference]: Finished difference. Result has 384 places, 745 transitions, 5492 flow [2022-11-16 11:30:54,719 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4446, PETRI_DIFFERENCE_MINUEND_PLACES=352, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=689, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=126, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=543, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=5492, PETRI_PLACES=384, PETRI_TRANSITIONS=745} [2022-11-16 11:30:54,720 INFO L288 CegarLoopForPetriNet]: 277 programPoint places, 107 predicate places. [2022-11-16 11:30:54,721 INFO L495 AbstractCegarLoop]: Abstraction has has 384 places, 745 transitions, 5492 flow [2022-11-16 11:30:54,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 134.125) internal successors, (2146), 16 states have internal predecessors, (2146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:54,722 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:30:54,722 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:54,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 11:30:54,723 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:30:54,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:54,723 INFO L85 PathProgramCache]: Analyzing trace with hash 105456701, now seen corresponding path program 2 times [2022-11-16 11:30:54,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:54,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184059445] [2022-11-16 11:30:54,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:54,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:54,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:57,389 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:30:57,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:57,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184059445] [2022-11-16 11:30:57,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184059445] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:57,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:57,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-11-16 11:30:57,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768745080] [2022-11-16 11:30:57,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:57,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-16 11:30:57,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:57,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-16 11:30:57,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:30:57,395 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 278 [2022-11-16 11:30:57,398 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 745 transitions, 5492 flow. Second operand has 21 states, 21 states have (on average 117.66666666666667) internal successors, (2471), 21 states have internal predecessors, (2471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:57,399 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:30:57,399 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 278 [2022-11-16 11:30:57,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:31:03,307 INFO L130 PetriNetUnfolder]: 3731/10777 cut-off events. [2022-11-16 11:31:03,307 INFO L131 PetriNetUnfolder]: For 18331/18442 co-relation queries the response was YES. [2022-11-16 11:31:03,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33692 conditions, 10777 events. 3731/10777 cut-off events. For 18331/18442 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 93066 event pairs, 997 based on Foata normal form. 109/10423 useless extension candidates. Maximal degree in co-relation 33646. Up to 3451 conditions per place. [2022-11-16 11:31:03,409 INFO L137 encePairwiseOnDemand]: 240/278 looper letters, 880 selfloop transitions, 284 changer transitions 12/1318 dead transitions. [2022-11-16 11:31:03,409 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 1318 transitions, 11571 flow [2022-11-16 11:31:03,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:31:03,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-11-16 11:31:03,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2467 transitions. [2022-11-16 11:31:03,418 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5220059246720271 [2022-11-16 11:31:03,419 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2467 transitions. [2022-11-16 11:31:03,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2467 transitions. [2022-11-16 11:31:03,421 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:31:03,421 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2467 transitions. [2022-11-16 11:31:03,428 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 145.11764705882354) internal successors, (2467), 17 states have internal predecessors, (2467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:03,435 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 278.0) internal successors, (5004), 18 states have internal predecessors, (5004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:03,437 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 278.0) internal successors, (5004), 18 states have internal predecessors, (5004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:03,437 INFO L175 Difference]: Start difference. First operand has 384 places, 745 transitions, 5492 flow. Second operand 17 states and 2467 transitions. [2022-11-16 11:31:03,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 1318 transitions, 11571 flow [2022-11-16 11:31:03,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 394 places, 1318 transitions, 11512 flow, removed 5 selfloop flow, removed 6 redundant places. [2022-11-16 11:31:03,583 INFO L231 Difference]: Finished difference. Result has 403 places, 862 transitions, 7905 flow [2022-11-16 11:31:03,584 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=5458, PETRI_DIFFERENCE_MINUEND_PLACES=378, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=745, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=167, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=483, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=7905, PETRI_PLACES=403, PETRI_TRANSITIONS=862} [2022-11-16 11:31:03,584 INFO L288 CegarLoopForPetriNet]: 277 programPoint places, 126 predicate places. [2022-11-16 11:31:03,584 INFO L495 AbstractCegarLoop]: Abstraction has has 403 places, 862 transitions, 7905 flow [2022-11-16 11:31:03,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 117.66666666666667) internal successors, (2471), 21 states have internal predecessors, (2471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:03,585 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:31:03,586 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:31:03,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 11:31:03,586 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:31:03,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:03,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1650958039, now seen corresponding path program 3 times [2022-11-16 11:31:03,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:03,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282918416] [2022-11-16 11:31:03,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:03,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:03,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:05,501 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:31:05,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:05,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282918416] [2022-11-16 11:31:05,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282918416] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:05,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:05,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-16 11:31:05,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807785970] [2022-11-16 11:31:05,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:05,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 11:31:05,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:05,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 11:31:05,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2022-11-16 11:31:05,506 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 278 [2022-11-16 11:31:05,508 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 862 transitions, 7905 flow. Second operand has 16 states, 16 states have (on average 134.125) internal successors, (2146), 16 states have internal predecessors, (2146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:05,508 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:31:05,508 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 278 [2022-11-16 11:31:05,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:31:14,439 INFO L130 PetriNetUnfolder]: 5252/15057 cut-off events. [2022-11-16 11:31:14,439 INFO L131 PetriNetUnfolder]: For 34372/34559 co-relation queries the response was YES. [2022-11-16 11:31:14,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49625 conditions, 15057 events. 5252/15057 cut-off events. For 34372/34559 co-relation queries the response was YES. Maximal size of possible extension queue 263. Compared 140792 event pairs, 1160 based on Foata normal form. 108/14529 useless extension candidates. Maximal degree in co-relation 49570. Up to 4766 conditions per place. [2022-11-16 11:31:14,563 INFO L137 encePairwiseOnDemand]: 242/278 looper letters, 1014 selfloop transitions, 357 changer transitions 8/1537 dead transitions. [2022-11-16 11:31:14,563 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 424 places, 1537 transitions, 15974 flow [2022-11-16 11:31:14,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-16 11:31:14,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-11-16 11:31:14,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3383 transitions. [2022-11-16 11:31:14,569 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5531393067364291 [2022-11-16 11:31:14,569 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 3383 transitions. [2022-11-16 11:31:14,569 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 3383 transitions. [2022-11-16 11:31:14,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:31:14,571 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 3383 transitions. [2022-11-16 11:31:14,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 153.77272727272728) internal successors, (3383), 22 states have internal predecessors, (3383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:14,584 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 278.0) internal successors, (6394), 23 states have internal predecessors, (6394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:14,586 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 278.0) internal successors, (6394), 23 states have internal predecessors, (6394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:14,586 INFO L175 Difference]: Start difference. First operand has 403 places, 862 transitions, 7905 flow. Second operand 22 states and 3383 transitions. [2022-11-16 11:31:14,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 424 places, 1537 transitions, 15974 flow [2022-11-16 11:31:14,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 1537 transitions, 15827 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-11-16 11:31:14,799 INFO L231 Difference]: Finished difference. Result has 433 places, 1032 transitions, 11425 flow [2022-11-16 11:31:14,799 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=7794, PETRI_DIFFERENCE_MINUEND_PLACES=396, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=862, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=200, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=548, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=11425, PETRI_PLACES=433, PETRI_TRANSITIONS=1032} [2022-11-16 11:31:14,800 INFO L288 CegarLoopForPetriNet]: 277 programPoint places, 156 predicate places. [2022-11-16 11:31:14,800 INFO L495 AbstractCegarLoop]: Abstraction has has 433 places, 1032 transitions, 11425 flow [2022-11-16 11:31:14,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 134.125) internal successors, (2146), 16 states have internal predecessors, (2146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:14,800 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:31:14,800 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:31:14,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 11:31:14,801 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:31:14,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:14,801 INFO L85 PathProgramCache]: Analyzing trace with hash 183865499, now seen corresponding path program 4 times [2022-11-16 11:31:14,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:14,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784871239] [2022-11-16 11:31:14,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:14,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:14,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:16,770 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:31:16,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:16,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784871239] [2022-11-16 11:31:16,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784871239] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:16,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:16,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-16 11:31:16,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929304509] [2022-11-16 11:31:16,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:16,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 11:31:16,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:16,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 11:31:16,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2022-11-16 11:31:16,776 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 278 [2022-11-16 11:31:16,779 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 1032 transitions, 11425 flow. Second operand has 16 states, 16 states have (on average 134.125) internal successors, (2146), 16 states have internal predecessors, (2146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:16,779 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:31:16,780 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 278 [2022-11-16 11:31:16,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:31:29,005 INFO L130 PetriNetUnfolder]: 8227/23693 cut-off events. [2022-11-16 11:31:29,006 INFO L131 PetriNetUnfolder]: For 66111/66323 co-relation queries the response was YES. [2022-11-16 11:31:29,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79307 conditions, 23693 events. 8227/23693 cut-off events. For 66111/66323 co-relation queries the response was YES. Maximal size of possible extension queue 449. Compared 246782 event pairs, 2384 based on Foata normal form. 149/22860 useless extension candidates. Maximal degree in co-relation 79236. Up to 7681 conditions per place. [2022-11-16 11:31:29,262 INFO L137 encePairwiseOnDemand]: 243/278 looper letters, 933 selfloop transitions, 484 changer transitions 6/1581 dead transitions. [2022-11-16 11:31:29,263 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 450 places, 1581 transitions, 19634 flow [2022-11-16 11:31:29,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 11:31:29,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-16 11:31:29,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2725 transitions. [2022-11-16 11:31:29,268 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5445643485211831 [2022-11-16 11:31:29,269 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2725 transitions. [2022-11-16 11:31:29,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2725 transitions. [2022-11-16 11:31:29,270 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:31:29,270 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2725 transitions. [2022-11-16 11:31:29,275 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 151.38888888888889) internal successors, (2725), 18 states have internal predecessors, (2725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:29,282 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:29,284 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:29,284 INFO L175 Difference]: Start difference. First operand has 433 places, 1032 transitions, 11425 flow. Second operand 18 states and 2725 transitions. [2022-11-16 11:31:29,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 450 places, 1581 transitions, 19634 flow [2022-11-16 11:31:29,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 446 places, 1581 transitions, 19395 flow, removed 96 selfloop flow, removed 4 redundant places. [2022-11-16 11:31:29,824 INFO L231 Difference]: Finished difference. Result has 456 places, 1214 transitions, 16363 flow [2022-11-16 11:31:29,825 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=11222, PETRI_DIFFERENCE_MINUEND_PLACES=429, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1032, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=302, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=585, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=16363, PETRI_PLACES=456, PETRI_TRANSITIONS=1214} [2022-11-16 11:31:29,826 INFO L288 CegarLoopForPetriNet]: 277 programPoint places, 179 predicate places. [2022-11-16 11:31:29,826 INFO L495 AbstractCegarLoop]: Abstraction has has 456 places, 1214 transitions, 16363 flow [2022-11-16 11:31:29,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 134.125) internal successors, (2146), 16 states have internal predecessors, (2146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:29,828 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:31:29,828 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:31:29,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-16 11:31:29,828 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:31:29,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:29,829 INFO L85 PathProgramCache]: Analyzing trace with hash -243132153, now seen corresponding path program 5 times [2022-11-16 11:31:29,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:29,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402476203] [2022-11-16 11:31:29,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:29,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:29,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:32,018 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:31:32,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:32,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402476203] [2022-11-16 11:31:32,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402476203] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:32,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:32,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-16 11:31:32,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520271357] [2022-11-16 11:31:32,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:32,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 11:31:32,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:32,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 11:31:32,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2022-11-16 11:31:32,023 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 278 [2022-11-16 11:31:32,025 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 1214 transitions, 16363 flow. Second operand has 16 states, 16 states have (on average 134.125) internal successors, (2146), 16 states have internal predecessors, (2146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:32,025 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:31:32,025 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 278 [2022-11-16 11:31:32,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:31:49,707 INFO L130 PetriNetUnfolder]: 10397/29879 cut-off events. [2022-11-16 11:31:49,707 INFO L131 PetriNetUnfolder]: For 106317/106685 co-relation queries the response was YES. [2022-11-16 11:31:50,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103338 conditions, 29879 events. 10397/29879 cut-off events. For 106317/106685 co-relation queries the response was YES. Maximal size of possible extension queue 582. Compared 325726 event pairs, 3196 based on Foata normal form. 301/28945 useless extension candidates. Maximal degree in co-relation 103257. Up to 8976 conditions per place. [2022-11-16 11:31:50,104 INFO L137 encePairwiseOnDemand]: 240/278 looper letters, 1074 selfloop transitions, 599 changer transitions 12/1843 dead transitions. [2022-11-16 11:31:50,105 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 475 places, 1843 transitions, 25358 flow [2022-11-16 11:31:50,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 11:31:50,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 11:31:50,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3143 transitions. [2022-11-16 11:31:50,112 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5652877697841726 [2022-11-16 11:31:50,113 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 3143 transitions. [2022-11-16 11:31:50,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 3143 transitions. [2022-11-16 11:31:50,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:31:50,114 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 3143 transitions. [2022-11-16 11:31:50,118 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 157.15) internal successors, (3143), 20 states have internal predecessors, (3143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:50,122 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 278.0) internal successors, (5838), 21 states have internal predecessors, (5838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:50,123 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 278.0) internal successors, (5838), 21 states have internal predecessors, (5838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:50,123 INFO L175 Difference]: Start difference. First operand has 456 places, 1214 transitions, 16363 flow. Second operand 20 states and 3143 transitions. [2022-11-16 11:31:50,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 475 places, 1843 transitions, 25358 flow [2022-11-16 11:31:50,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 471 places, 1843 transitions, 25206 flow, removed 43 selfloop flow, removed 4 redundant places. [2022-11-16 11:31:50,879 INFO L231 Difference]: Finished difference. Result has 484 places, 1369 transitions, 21751 flow [2022-11-16 11:31:50,880 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=16229, PETRI_DIFFERENCE_MINUEND_PLACES=452, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=445, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=638, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=21751, PETRI_PLACES=484, PETRI_TRANSITIONS=1369} [2022-11-16 11:31:50,880 INFO L288 CegarLoopForPetriNet]: 277 programPoint places, 207 predicate places. [2022-11-16 11:31:50,880 INFO L495 AbstractCegarLoop]: Abstraction has has 484 places, 1369 transitions, 21751 flow [2022-11-16 11:31:50,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 134.125) internal successors, (2146), 16 states have internal predecessors, (2146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:50,881 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:31:50,881 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:31:50,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-16 11:31:50,882 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:31:50,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:50,882 INFO L85 PathProgramCache]: Analyzing trace with hash 833992619, now seen corresponding path program 6 times [2022-11-16 11:31:50,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:50,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403048203] [2022-11-16 11:31:50,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:50,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:50,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:52,616 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:31:52,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:52,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403048203] [2022-11-16 11:31:52,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403048203] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:52,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:52,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-16 11:31:52,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515653317] [2022-11-16 11:31:52,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:52,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 11:31:52,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:52,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 11:31:52,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2022-11-16 11:31:52,621 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 278 [2022-11-16 11:31:52,623 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 484 places, 1369 transitions, 21751 flow. Second operand has 16 states, 16 states have (on average 134.125) internal successors, (2146), 16 states have internal predecessors, (2146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:52,623 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:31:52,623 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 278 [2022-11-16 11:31:52,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand