./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dde4bea-e843-4fa5-a29b-85b9539711d4/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dde4bea-e843-4fa5-a29b-85b9539711d4/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dde4bea-e843-4fa5-a29b-85b9539711d4/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dde4bea-e843-4fa5-a29b-85b9539711d4/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dde4bea-e843-4fa5-a29b-85b9539711d4/bin/uautomizer-w2VwFs6gM0/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dde4bea-e843-4fa5-a29b-85b9539711d4/bin/uautomizer-w2VwFs6gM0 --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 a812aad62102b8bb20af57f89ce6dbf7fb9ee1fa63f6f8ecf164ccf61d0713cb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 14:28:53,736 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 14:28:53,739 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 14:28:53,795 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 14:28:53,796 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 14:28:53,800 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 14:28:53,802 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 14:28:53,806 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 14:28:53,808 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 14:28:53,814 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 14:28:53,815 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 14:28:53,817 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 14:28:53,817 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 14:28:53,820 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 14:28:53,822 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 14:28:53,826 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 14:28:53,828 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 14:28:53,829 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 14:28:53,832 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 14:28:53,839 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 14:28:53,841 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 14:28:53,842 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 14:28:53,845 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 14:28:53,846 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 14:28:53,856 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 14:28:53,856 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 14:28:53,856 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 14:28:53,858 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 14:28:53,859 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 14:28:53,860 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 14:28:53,861 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 14:28:53,862 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 14:28:53,863 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 14:28:53,865 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 14:28:53,866 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 14:28:53,866 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 14:28:53,867 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 14:28:53,867 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 14:28:53,867 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 14:28:53,868 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 14:28:53,869 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 14:28:53,870 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dde4bea-e843-4fa5-a29b-85b9539711d4/bin/uautomizer-w2VwFs6gM0/config/svcomp-DataRace-32bit-Automizer_Default.epf [2021-11-22 14:28:53,911 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 14:28:53,912 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 14:28:53,912 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 14:28:53,913 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 14:28:53,920 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-22 14:28:53,920 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-22 14:28:53,921 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 14:28:53,921 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 14:28:53,921 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 14:28:53,922 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 14:28:53,923 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 14:28:53,923 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-22 14:28:53,923 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 14:28:53,923 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 14:28:53,923 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 14:28:53,924 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 14:28:53,924 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 14:28:53,924 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 14:28:53,924 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-22 14:28:53,924 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 14:28:53,924 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 14:28:53,925 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 14:28:53,925 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 14:28:53,925 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 14:28:53,925 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 14:28:53,925 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 14:28:53,926 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:28:53,926 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 14:28:53,926 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 14:28:53,928 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 14:28:53,928 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 14:28:53,928 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 14:28:53,928 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 14:28:53,929 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 14:28:53,929 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 14:28:53,929 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 14:28:53,929 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_8dde4bea-e843-4fa5-a29b-85b9539711d4/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dde4bea-e843-4fa5-a29b-85b9539711d4/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a812aad62102b8bb20af57f89ce6dbf7fb9ee1fa63f6f8ecf164ccf61d0713cb [2021-11-22 14:28:54,217 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 14:28:54,237 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 14:28:54,239 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 14:28:54,241 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 14:28:54,241 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 14:28:54,243 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dde4bea-e843-4fa5-a29b-85b9539711d4/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i [2021-11-22 14:28:54,304 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dde4bea-e843-4fa5-a29b-85b9539711d4/bin/uautomizer-w2VwFs6gM0/data/a6c737554/80d09f31687b4e0bbe7f68a3fbcaff48/FLAGf7692ea1e [2021-11-22 14:28:54,940 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 14:28:54,941 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dde4bea-e843-4fa5-a29b-85b9539711d4/sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i [2021-11-22 14:28:54,979 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dde4bea-e843-4fa5-a29b-85b9539711d4/bin/uautomizer-w2VwFs6gM0/data/a6c737554/80d09f31687b4e0bbe7f68a3fbcaff48/FLAGf7692ea1e [2021-11-22 14:28:55,171 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dde4bea-e843-4fa5-a29b-85b9539711d4/bin/uautomizer-w2VwFs6gM0/data/a6c737554/80d09f31687b4e0bbe7f68a3fbcaff48 [2021-11-22 14:28:55,175 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 14:28:55,177 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 14:28:55,180 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 14:28:55,180 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 14:28:55,184 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 14:28:55,185 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:28:55" (1/1) ... [2021-11-22 14:28:55,187 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36fb07b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:28:55, skipping insertion in model container [2021-11-22 14:28:55,188 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:28:55" (1/1) ... [2021-11-22 14:28:55,195 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 14:28:55,252 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 14:28:55,783 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:28:55,799 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 14:28:55,839 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:28:55,897 INFO L208 MainTranslator]: Completed translation [2021-11-22 14:28:55,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:28:55 WrapperNode [2021-11-22 14:28:55,898 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 14:28:55,899 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 14:28:55,899 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 14:28:55,899 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 14:28:55,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:28:55" (1/1) ... [2021-11-22 14:28:55,925 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:28:55" (1/1) ... [2021-11-22 14:28:55,954 INFO L137 Inliner]: procedures = 264, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 91 [2021-11-22 14:28:55,955 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 14:28:55,955 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 14:28:55,956 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 14:28:55,956 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 14:28:55,964 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:28:55" (1/1) ... [2021-11-22 14:28:55,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:28:55" (1/1) ... [2021-11-22 14:28:55,968 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:28:55" (1/1) ... [2021-11-22 14:28:55,969 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:28:55" (1/1) ... [2021-11-22 14:28:55,980 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:28:55" (1/1) ... [2021-11-22 14:28:55,983 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:28:55" (1/1) ... [2021-11-22 14:28:55,985 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:28:55" (1/1) ... [2021-11-22 14:28:55,989 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 14:28:55,989 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 14:28:55,990 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 14:28:55,990 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 14:28:55,991 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:28:55" (1/1) ... [2021-11-22 14:28:56,002 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:28:56,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dde4bea-e843-4fa5-a29b-85b9539711d4/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:28:56,039 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dde4bea-e843-4fa5-a29b-85b9539711d4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 14:28:56,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dde4bea-e843-4fa5-a29b-85b9539711d4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 14:28:56,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 14:28:56,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 14:28:56,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 14:28:56,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 14:28:56,082 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-22 14:28:56,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 14:28:56,082 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-22 14:28:56,084 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-22 14:28:56,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 14:28:56,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 14:28:56,086 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-22 14:28:56,237 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 14:28:56,239 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 14:28:56,554 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 14:28:56,563 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 14:28:56,563 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-22 14:28:56,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:28:56 BoogieIcfgContainer [2021-11-22 14:28:56,565 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 14:28:56,567 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 14:28:56,567 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 14:28:56,577 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 14:28:56,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:28:55" (1/3) ... [2021-11-22 14:28:56,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13fd5c09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:28:56, skipping insertion in model container [2021-11-22 14:28:56,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:28:55" (2/3) ... [2021-11-22 14:28:56,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13fd5c09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:28:56, skipping insertion in model container [2021-11-22 14:28:56,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:28:56" (3/3) ... [2021-11-22 14:28:56,581 INFO L111 eAbstractionObserver]: Analyzing ICFG 06-symbeq_08-tricky_address3.i [2021-11-22 14:28:56,587 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-22 14:28:56,587 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 14:28:56,587 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-22 14:28:56,587 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-22 14:28:56,636 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,637 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,637 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,637 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,637 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,638 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,638 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,638 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,638 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,639 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,639 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,639 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,640 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,640 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,640 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,640 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,641 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,642 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,642 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,642 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,642 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,642 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,643 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,643 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,644 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,644 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,645 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,645 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,646 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,646 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,646 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,647 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,647 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,647 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,647 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,647 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,648 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,648 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,648 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,648 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,648 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,649 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,649 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,650 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,650 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,650 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,650 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,650 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,651 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,651 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,651 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,652 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,652 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,652 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,652 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,652 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,653 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,653 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,653 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,653 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,655 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,655 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,655 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,656 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,656 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,656 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,656 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,656 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,657 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,657 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,657 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,657 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,658 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,658 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,658 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,658 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,659 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,659 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,659 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,660 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,660 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,660 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,661 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,661 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,662 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,665 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,666 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,666 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,667 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,668 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,668 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,668 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,669 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,669 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,675 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,675 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,675 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,676 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,676 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,676 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,676 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,676 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,677 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,677 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,678 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,678 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,678 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,678 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,678 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,679 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,679 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,679 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,679 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,679 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,680 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,680 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,681 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,681 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,682 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,682 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,682 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,682 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,682 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,683 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,683 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,683 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,683 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,683 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,684 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,684 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,684 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,684 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,684 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,685 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,688 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,688 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,688 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,689 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,689 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,689 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,689 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,689 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,690 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,690 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,690 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,690 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,693 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,694 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,694 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,694 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,694 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,695 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,695 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,696 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,696 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,696 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,696 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,697 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,698 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,698 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,699 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 14:28:56,702 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-22 14:28:56,763 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 14:28:56,773 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-22 14:28:56,774 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-11-22 14:28:56,791 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 106 places, 106 transitions, 217 flow [2021-11-22 14:28:56,868 INFO L129 PetriNetUnfolder]: 4/105 cut-off events. [2021-11-22 14:28:56,868 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-22 14:28:56,872 INFO L84 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 105 events. 4/105 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 83 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2021-11-22 14:28:56,873 INFO L82 GeneralOperation]: Start removeDead. Operand has 106 places, 106 transitions, 217 flow [2021-11-22 14:28:56,878 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 105 places, 105 transitions, 213 flow [2021-11-22 14:28:56,900 INFO L129 PetriNetUnfolder]: 4/56 cut-off events. [2021-11-22 14:28:56,900 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-22 14:28:56,901 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 14:28:56,901 INFO L254 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] [2021-11-22 14:28:56,902 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-22 14:28:56,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:28:56,910 INFO L85 PathProgramCache]: Analyzing trace with hash 900925616, now seen corresponding path program 1 times [2021-11-22 14:28:56,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:28:56,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671934531] [2021-11-22 14:28:56,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:28:56,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:28:57,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:28:57,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:28:57,177 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:28:57,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671934531] [2021-11-22 14:28:57,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671934531] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:28:57,178 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:28:57,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 14:28:57,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924799127] [2021-11-22 14:28:57,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:28:57,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 14:28:57,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:28:57,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 14:28:57,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:28:57,246 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 106 [2021-11-22 14:28:57,249 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 105 transitions, 213 flow. Second operand has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:28:57,249 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 14:28:57,250 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 106 [2021-11-22 14:28:57,251 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 14:28:57,295 INFO L129 PetriNetUnfolder]: 1/106 cut-off events. [2021-11-22 14:28:57,295 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-22 14:28:57,296 INFO L84 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 106 events. 1/106 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 80 event pairs, 0 based on Foata normal form. 2/101 useless extension candidates. Maximal degree in co-relation 47. Up to 9 conditions per place. [2021-11-22 14:28:57,297 INFO L132 encePairwiseOnDemand]: 100/106 looper letters, 10 selfloop transitions, 2 changer transitions 1/106 dead transitions. [2021-11-22 14:28:57,298 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 106 transitions, 239 flow [2021-11-22 14:28:57,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 14:28:57,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-22 14:28:57,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 302 transitions. [2021-11-22 14:28:57,312 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.949685534591195 [2021-11-22 14:28:57,313 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 302 transitions. [2021-11-22 14:28:57,313 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 302 transitions. [2021-11-22 14:28:57,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 14:28:57,317 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 302 transitions. [2021-11-22 14:28:57,321 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:28:57,327 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:28:57,328 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:28:57,330 INFO L186 Difference]: Start difference. First operand has 105 places, 105 transitions, 213 flow. Second operand 3 states and 302 transitions. [2021-11-22 14:28:57,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 106 transitions, 239 flow [2021-11-22 14:28:57,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 106 transitions, 238 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-22 14:28:57,338 INFO L242 Difference]: Finished difference. Result has 107 places, 102 transitions, 216 flow [2021-11-22 14:28:57,340 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=216, PETRI_PLACES=107, PETRI_TRANSITIONS=102} [2021-11-22 14:28:57,344 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 2 predicate places. [2021-11-22 14:28:57,344 INFO L470 AbstractCegarLoop]: Abstraction has has 107 places, 102 transitions, 216 flow [2021-11-22 14:28:57,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:28:57,345 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 14:28:57,345 INFO L254 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] [2021-11-22 14:28:57,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 14:28:57,345 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-22 14:28:57,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:28:57,346 INFO L85 PathProgramCache]: Analyzing trace with hash 438260885, now seen corresponding path program 1 times [2021-11-22 14:28:57,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:28:57,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344556591] [2021-11-22 14:28:57,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:28:57,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:28:57,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:28:57,472 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:28:57,473 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:28:57,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344556591] [2021-11-22 14:28:57,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344556591] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 14:28:57,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1038610948] [2021-11-22 14:28:57,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:28:57,474 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:28:57,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dde4bea-e843-4fa5-a29b-85b9539711d4/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:28:57,476 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dde4bea-e843-4fa5-a29b-85b9539711d4/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 14:28:57,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dde4bea-e843-4fa5-a29b-85b9539711d4/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-22 14:28:57,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:28:57,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-22 14:28:57,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:28:57,697 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:28:57,698 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:28:57,881 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:28:57,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1038610948] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 14:28:57,882 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 14:28:57,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-11-22 14:28:57,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205568546] [2021-11-22 14:28:57,883 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 14:28:57,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-22 14:28:57,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:28:57,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-22 14:28:57,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-22 14:28:57,898 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 106 [2021-11-22 14:28:57,900 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 102 transitions, 216 flow. Second operand has 10 states, 10 states have (on average 96.1) internal successors, (961), 10 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:28:57,900 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 14:28:57,900 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 106 [2021-11-22 14:28:57,900 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 14:28:58,062 INFO L129 PetriNetUnfolder]: 1/112 cut-off events. [2021-11-22 14:28:58,063 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-22 14:28:58,063 INFO L84 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 112 events. 1/112 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 73 event pairs, 0 based on Foata normal form. 2/109 useless extension candidates. Maximal degree in co-relation 115. Up to 6 conditions per place. [2021-11-22 14:28:58,064 INFO L132 encePairwiseOnDemand]: 100/106 looper letters, 11 selfloop transitions, 9 changer transitions 0/112 dead transitions. [2021-11-22 14:28:58,064 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 112 transitions, 278 flow [2021-11-22 14:28:58,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 14:28:58,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-11-22 14:28:58,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 868 transitions. [2021-11-22 14:28:58,070 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.909853249475891 [2021-11-22 14:28:58,070 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 868 transitions. [2021-11-22 14:28:58,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 868 transitions. [2021-11-22 14:28:58,072 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 14:28:58,072 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 868 transitions. [2021-11-22 14:28:58,076 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 96.44444444444444) internal successors, (868), 9 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:28:58,081 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 106.0) internal successors, (1060), 10 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:28:58,082 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 106.0) internal successors, (1060), 10 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:28:58,083 INFO L186 Difference]: Start difference. First operand has 107 places, 102 transitions, 216 flow. Second operand 9 states and 868 transitions. [2021-11-22 14:28:58,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 112 transitions, 278 flow [2021-11-22 14:28:58,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 112 transitions, 276 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-22 14:28:58,087 INFO L242 Difference]: Finished difference. Result has 116 places, 108 transitions, 264 flow [2021-11-22 14:28:58,088 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=264, PETRI_PLACES=116, PETRI_TRANSITIONS=108} [2021-11-22 14:28:58,088 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 11 predicate places. [2021-11-22 14:28:58,089 INFO L470 AbstractCegarLoop]: Abstraction has has 116 places, 108 transitions, 264 flow [2021-11-22 14:28:58,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 96.1) internal successors, (961), 10 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:28:58,090 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 14:28:58,090 INFO L254 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] [2021-11-22 14:28:58,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dde4bea-e843-4fa5-a29b-85b9539711d4/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-22 14:28:58,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dde4bea-e843-4fa5-a29b-85b9539711d4/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:28:58,305 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-22 14:28:58,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:28:58,305 INFO L85 PathProgramCache]: Analyzing trace with hash 432939381, now seen corresponding path program 2 times [2021-11-22 14:28:58,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:28:58,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042055130] [2021-11-22 14:28:58,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:28:58,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:28:58,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:28:58,452 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:28:58,452 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:28:58,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042055130] [2021-11-22 14:28:58,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042055130] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 14:28:58,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [546653221] [2021-11-22 14:28:58,453 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-22 14:28:58,453 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:28:58,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dde4bea-e843-4fa5-a29b-85b9539711d4/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:28:58,459 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dde4bea-e843-4fa5-a29b-85b9539711d4/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 14:28:58,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dde4bea-e843-4fa5-a29b-85b9539711d4/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-22 14:28:58,549 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-22 14:28:58,550 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 14:28:58,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-22 14:28:58,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:28:58,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-11-22 14:28:58,742 INFO L354 Elim1Store]: treesize reduction 39, result has 22.0 percent of original size [2021-11-22 14:28:58,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 28 treesize of output 27 [2021-11-22 14:28:58,817 INFO L354 Elim1Store]: treesize reduction 96, result has 20.0 percent of original size [2021-11-22 14:28:58,818 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 40 treesize of output 42 [2021-11-22 14:28:58,910 INFO L354 Elim1Store]: treesize reduction 172, result has 17.3 percent of original size [2021-11-22 14:28:58,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 case distinctions, treesize of input 52 treesize of output 57 [2021-11-22 14:28:58,966 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-22 14:28:58,966 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 14:28:58,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [546653221] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:28:58,967 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-22 14:28:58,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2021-11-22 14:28:58,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262208843] [2021-11-22 14:28:58,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:28:58,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 14:28:58,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:28:58,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 14:28:58,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-11-22 14:28:58,973 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 106 [2021-11-22 14:28:58,976 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 108 transitions, 264 flow. Second operand has 6 states, 6 states have (on average 69.33333333333333) internal successors, (416), 6 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:28:58,976 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 14:28:58,976 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 106 [2021-11-22 14:28:58,976 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 14:28:59,432 INFO L129 PetriNetUnfolder]: 231/750 cut-off events. [2021-11-22 14:28:59,432 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-11-22 14:28:59,440 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1287 conditions, 750 events. 231/750 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 4028 event pairs, 103 based on Foata normal form. 0/680 useless extension candidates. Maximal degree in co-relation 1225. Up to 361 conditions per place. [2021-11-22 14:28:59,447 INFO L132 encePairwiseOnDemand]: 95/106 looper letters, 72 selfloop transitions, 22 changer transitions 0/166 dead transitions. [2021-11-22 14:28:59,447 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 166 transitions, 568 flow [2021-11-22 14:28:59,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 14:28:59,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-22 14:28:59,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 497 transitions. [2021-11-22 14:28:59,450 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7814465408805031 [2021-11-22 14:28:59,450 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 497 transitions. [2021-11-22 14:28:59,450 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 497 transitions. [2021-11-22 14:28:59,451 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 14:28:59,451 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 497 transitions. [2021-11-22 14:28:59,453 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 82.83333333333333) internal successors, (497), 6 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:28:59,455 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:28:59,455 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:28:59,456 INFO L186 Difference]: Start difference. First operand has 116 places, 108 transitions, 264 flow. Second operand 6 states and 497 transitions. [2021-11-22 14:28:59,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 166 transitions, 568 flow [2021-11-22 14:28:59,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 166 transitions, 562 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-11-22 14:28:59,468 INFO L242 Difference]: Finished difference. Result has 125 places, 129 transitions, 408 flow [2021-11-22 14:28:59,468 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=408, PETRI_PLACES=125, PETRI_TRANSITIONS=129} [2021-11-22 14:28:59,474 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 20 predicate places. [2021-11-22 14:28:59,474 INFO L470 AbstractCegarLoop]: Abstraction has has 125 places, 129 transitions, 408 flow [2021-11-22 14:28:59,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 69.33333333333333) internal successors, (416), 6 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:28:59,475 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 14:28:59,475 INFO L254 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] [2021-11-22 14:28:59,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dde4bea-e843-4fa5-a29b-85b9539711d4/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-22 14:28:59,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dde4bea-e843-4fa5-a29b-85b9539711d4/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:28:59,683 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-22 14:28:59,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:28:59,683 INFO L85 PathProgramCache]: Analyzing trace with hash 491733010, now seen corresponding path program 1 times [2021-11-22 14:28:59,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:28:59,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601246440] [2021-11-22 14:28:59,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:28:59,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:28:59,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:28:59,837 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:28:59,837 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:28:59,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601246440] [2021-11-22 14:28:59,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601246440] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 14:28:59,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1816274615] [2021-11-22 14:28:59,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:28:59,839 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:28:59,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dde4bea-e843-4fa5-a29b-85b9539711d4/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:28:59,840 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dde4bea-e843-4fa5-a29b-85b9539711d4/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 14:28:59,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dde4bea-e843-4fa5-a29b-85b9539711d4/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-22 14:28:59,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:28:59,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-22 14:28:59,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:29:00,091 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:29:00,092 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:29:00,271 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:29:00,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1816274615] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 14:29:00,272 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 14:29:00,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2021-11-22 14:29:00,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164814732] [2021-11-22 14:29:00,272 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 14:29:00,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-22 14:29:00,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:29:00,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-22 14:29:00,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2021-11-22 14:29:00,283 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 106 [2021-11-22 14:29:00,287 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 129 transitions, 408 flow. Second operand has 18 states, 18 states have (on average 96.27777777777777) internal successors, (1733), 18 states have internal predecessors, (1733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:00,287 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 14:29:00,287 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 106 [2021-11-22 14:29:00,287 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 14:29:00,526 INFO L129 PetriNetUnfolder]: 40/293 cut-off events. [2021-11-22 14:29:00,527 INFO L130 PetriNetUnfolder]: For 43/46 co-relation queries the response was YES. [2021-11-22 14:29:00,528 INFO L84 FinitePrefix]: Finished finitePrefix Result has 538 conditions, 293 events. 40/293 cut-off events. For 43/46 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 865 event pairs, 4 based on Foata normal form. 4/284 useless extension candidates. Maximal degree in co-relation 398. Up to 49 conditions per place. [2021-11-22 14:29:00,531 INFO L132 encePairwiseOnDemand]: 100/106 looper letters, 19 selfloop transitions, 21 changer transitions 0/153 dead transitions. [2021-11-22 14:29:00,531 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 153 transitions, 588 flow [2021-11-22 14:29:00,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-22 14:29:00,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-11-22 14:29:00,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2018 transitions. [2021-11-22 14:29:00,542 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9065588499550764 [2021-11-22 14:29:00,542 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2018 transitions. [2021-11-22 14:29:00,542 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2018 transitions. [2021-11-22 14:29:00,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 14:29:00,544 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2018 transitions. [2021-11-22 14:29:00,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 96.0952380952381) internal successors, (2018), 21 states have internal predecessors, (2018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:00,555 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 106.0) internal successors, (2332), 22 states have internal predecessors, (2332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:00,559 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 106.0) internal successors, (2332), 22 states have internal predecessors, (2332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:00,559 INFO L186 Difference]: Start difference. First operand has 125 places, 129 transitions, 408 flow. Second operand 21 states and 2018 transitions. [2021-11-22 14:29:00,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 153 transitions, 588 flow [2021-11-22 14:29:00,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 153 transitions, 588 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-11-22 14:29:00,573 INFO L242 Difference]: Finished difference. Result has 150 places, 142 transitions, 538 flow [2021-11-22 14:29:00,574 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=408, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=538, PETRI_PLACES=150, PETRI_TRANSITIONS=142} [2021-11-22 14:29:00,575 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 45 predicate places. [2021-11-22 14:29:00,576 INFO L470 AbstractCegarLoop]: Abstraction has has 150 places, 142 transitions, 538 flow [2021-11-22 14:29:00,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 96.27777777777777) internal successors, (1733), 18 states have internal predecessors, (1733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:00,577 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 14:29:00,577 INFO L254 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] [2021-11-22 14:29:00,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dde4bea-e843-4fa5-a29b-85b9539711d4/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-22 14:29:00,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dde4bea-e843-4fa5-a29b-85b9539711d4/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:29:00,791 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-22 14:29:00,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:29:00,791 INFO L85 PathProgramCache]: Analyzing trace with hash 656757202, now seen corresponding path program 2 times [2021-11-22 14:29:00,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:29:00,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838891191] [2021-11-22 14:29:00,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:29:00,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:29:00,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:29:01,042 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:29:01,043 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:29:01,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838891191] [2021-11-22 14:29:01,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838891191] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 14:29:01,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1404981175] [2021-11-22 14:29:01,044 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-22 14:29:01,044 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:29:01,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dde4bea-e843-4fa5-a29b-85b9539711d4/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:29:01,046 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dde4bea-e843-4fa5-a29b-85b9539711d4/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 14:29:01,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dde4bea-e843-4fa5-a29b-85b9539711d4/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-22 14:29:01,117 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-22 14:29:01,117 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 14:29:01,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-22 14:29:01,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:29:01,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-11-22 14:29:01,263 INFO L354 Elim1Store]: treesize reduction 39, result has 22.0 percent of original size [2021-11-22 14:29:01,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 28 treesize of output 27 [2021-11-22 14:29:01,312 INFO L354 Elim1Store]: treesize reduction 96, result has 20.0 percent of original size [2021-11-22 14:29:01,312 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 40 treesize of output 42 [2021-11-22 14:29:01,378 INFO L354 Elim1Store]: treesize reduction 172, result has 17.3 percent of original size [2021-11-22 14:29:01,378 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 case distinctions, treesize of input 52 treesize of output 57 [2021-11-22 14:29:01,410 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-22 14:29:01,410 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 14:29:01,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1404981175] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:29:01,410 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-22 14:29:01,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2021-11-22 14:29:01,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948917736] [2021-11-22 14:29:01,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:29:01,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 14:29:01,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:29:01,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 14:29:01,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2021-11-22 14:29:01,413 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 106 [2021-11-22 14:29:01,414 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 142 transitions, 538 flow. Second operand has 6 states, 6 states have (on average 68.5) internal successors, (411), 6 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:01,414 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 14:29:01,414 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 106 [2021-11-22 14:29:01,414 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 14:29:01,830 INFO L129 PetriNetUnfolder]: 315/1037 cut-off events. [2021-11-22 14:29:01,830 INFO L130 PetriNetUnfolder]: For 265/269 co-relation queries the response was YES. [2021-11-22 14:29:01,833 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2162 conditions, 1037 events. 315/1037 cut-off events. For 265/269 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 6045 event pairs, 133 based on Foata normal form. 4/963 useless extension candidates. Maximal degree in co-relation 2012. Up to 572 conditions per place. [2021-11-22 14:29:01,839 INFO L132 encePairwiseOnDemand]: 91/106 looper letters, 73 selfloop transitions, 39 changer transitions 5/199 dead transitions. [2021-11-22 14:29:01,839 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 199 transitions, 916 flow [2021-11-22 14:29:01,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 14:29:01,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-22 14:29:01,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 486 transitions. [2021-11-22 14:29:01,842 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7641509433962265 [2021-11-22 14:29:01,842 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 486 transitions. [2021-11-22 14:29:01,842 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 486 transitions. [2021-11-22 14:29:01,843 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 14:29:01,843 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 486 transitions. [2021-11-22 14:29:01,844 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 81.0) internal successors, (486), 6 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:01,846 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:01,847 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:01,847 INFO L186 Difference]: Start difference. First operand has 150 places, 142 transitions, 538 flow. Second operand 6 states and 486 transitions. [2021-11-22 14:29:01,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 199 transitions, 916 flow [2021-11-22 14:29:01,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 199 transitions, 892 flow, removed 6 selfloop flow, removed 6 redundant places. [2021-11-22 14:29:01,856 INFO L242 Difference]: Finished difference. Result has 154 places, 178 transitions, 802 flow [2021-11-22 14:29:01,856 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=514, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=802, PETRI_PLACES=154, PETRI_TRANSITIONS=178} [2021-11-22 14:29:01,857 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 49 predicate places. [2021-11-22 14:29:01,858 INFO L470 AbstractCegarLoop]: Abstraction has has 154 places, 178 transitions, 802 flow [2021-11-22 14:29:01,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 68.5) internal successors, (411), 6 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:01,858 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 14:29:01,858 INFO L254 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] [2021-11-22 14:29:01,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dde4bea-e843-4fa5-a29b-85b9539711d4/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-22 14:29:02,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dde4bea-e843-4fa5-a29b-85b9539711d4/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:29:02,066 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-22 14:29:02,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:29:02,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1425828848, now seen corresponding path program 1 times [2021-11-22 14:29:02,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:29:02,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759893678] [2021-11-22 14:29:02,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:29:02,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:29:02,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:29:02,237 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:29:02,238 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:29:02,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759893678] [2021-11-22 14:29:02,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759893678] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 14:29:02,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [66380672] [2021-11-22 14:29:02,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:29:02,240 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:29:02,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dde4bea-e843-4fa5-a29b-85b9539711d4/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:29:02,242 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dde4bea-e843-4fa5-a29b-85b9539711d4/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 14:29:02,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dde4bea-e843-4fa5-a29b-85b9539711d4/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-22 14:29:02,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:29:02,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-22 14:29:02,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:29:02,498 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:29:02,499 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:29:02,719 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:29:02,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [66380672] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 14:29:02,719 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 14:29:02,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2021-11-22 14:29:02,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818978521] [2021-11-22 14:29:02,720 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 14:29:02,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-22 14:29:02,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:29:02,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-22 14:29:02,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2021-11-22 14:29:02,725 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 106 [2021-11-22 14:29:02,728 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 178 transitions, 802 flow. Second operand has 23 states, 23 states have (on average 96.43478260869566) internal successors, (2218), 23 states have internal predecessors, (2218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:02,729 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 14:29:02,729 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 106 [2021-11-22 14:29:02,729 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 14:29:03,123 INFO L129 PetriNetUnfolder]: 99/542 cut-off events. [2021-11-22 14:29:03,123 INFO L130 PetriNetUnfolder]: For 301/312 co-relation queries the response was YES. [2021-11-22 14:29:03,126 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1207 conditions, 542 events. 99/542 cut-off events. For 301/312 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2635 event pairs, 8 based on Foata normal form. 7/529 useless extension candidates. Maximal degree in co-relation 976. Up to 116 conditions per place. [2021-11-22 14:29:03,129 INFO L132 encePairwiseOnDemand]: 100/106 looper letters, 25 selfloop transitions, 30 changer transitions 0/204 dead transitions. [2021-11-22 14:29:03,129 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 204 transitions, 1052 flow [2021-11-22 14:29:03,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-22 14:29:03,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2021-11-22 14:29:03,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 2878 transitions. [2021-11-22 14:29:03,139 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9050314465408805 [2021-11-22 14:29:03,139 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 2878 transitions. [2021-11-22 14:29:03,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 2878 transitions. [2021-11-22 14:29:03,142 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 14:29:03,142 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 2878 transitions. [2021-11-22 14:29:03,151 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 95.93333333333334) internal successors, (2878), 30 states have internal predecessors, (2878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:03,159 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 106.0) internal successors, (3286), 31 states have internal predecessors, (3286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:03,161 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 106.0) internal successors, (3286), 31 states have internal predecessors, (3286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:03,161 INFO L186 Difference]: Start difference. First operand has 154 places, 178 transitions, 802 flow. Second operand 30 states and 2878 transitions. [2021-11-22 14:29:03,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 204 transitions, 1052 flow [2021-11-22 14:29:03,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 204 transitions, 1020 flow, removed 16 selfloop flow, removed 0 redundant places. [2021-11-22 14:29:03,172 INFO L242 Difference]: Finished difference. Result has 186 places, 188 transitions, 922 flow [2021-11-22 14:29:03,172 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=770, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=922, PETRI_PLACES=186, PETRI_TRANSITIONS=188} [2021-11-22 14:29:03,175 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 81 predicate places. [2021-11-22 14:29:03,175 INFO L470 AbstractCegarLoop]: Abstraction has has 186 places, 188 transitions, 922 flow [2021-11-22 14:29:03,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 96.43478260869566) internal successors, (2218), 23 states have internal predecessors, (2218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:03,177 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 14:29:03,177 INFO L254 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] [2021-11-22 14:29:03,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dde4bea-e843-4fa5-a29b-85b9539711d4/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-22 14:29:03,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dde4bea-e843-4fa5-a29b-85b9539711d4/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:29:03,394 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-22 14:29:03,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:29:03,394 INFO L85 PathProgramCache]: Analyzing trace with hash 2073879691, now seen corresponding path program 2 times [2021-11-22 14:29:03,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:29:03,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340465844] [2021-11-22 14:29:03,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:29:03,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:29:03,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:29:03,570 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-22 14:29:03,570 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:29:03,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340465844] [2021-11-22 14:29:03,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340465844] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:29:03,571 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:29:03,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 14:29:03,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727966459] [2021-11-22 14:29:03,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:29:03,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 14:29:03,571 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:29:03,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 14:29:03,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-22 14:29:03,573 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 106 [2021-11-22 14:29:03,574 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 188 transitions, 922 flow. Second operand has 6 states, 6 states have (on average 74.5) internal successors, (447), 6 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:03,574 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 14:29:03,574 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 106 [2021-11-22 14:29:03,574 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 14:29:03,967 INFO L129 PetriNetUnfolder]: 321/1097 cut-off events. [2021-11-22 14:29:03,967 INFO L130 PetriNetUnfolder]: For 778/786 co-relation queries the response was YES. [2021-11-22 14:29:03,972 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2848 conditions, 1097 events. 321/1097 cut-off events. For 778/786 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 6394 event pairs, 77 based on Foata normal form. 0/1048 useless extension candidates. Maximal degree in co-relation 2626. Up to 538 conditions per place. [2021-11-22 14:29:03,979 INFO L132 encePairwiseOnDemand]: 95/106 looper letters, 108 selfloop transitions, 40 changer transitions 0/249 dead transitions. [2021-11-22 14:29:03,979 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 249 transitions, 1544 flow [2021-11-22 14:29:03,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 14:29:03,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-22 14:29:03,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 519 transitions. [2021-11-22 14:29:03,982 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8160377358490566 [2021-11-22 14:29:03,982 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 519 transitions. [2021-11-22 14:29:03,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 519 transitions. [2021-11-22 14:29:03,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 14:29:03,983 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 519 transitions. [2021-11-22 14:29:03,984 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 86.5) internal successors, (519), 6 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:03,986 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:03,986 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:03,987 INFO L186 Difference]: Start difference. First operand has 186 places, 188 transitions, 922 flow. Second operand 6 states and 519 transitions. [2021-11-22 14:29:03,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 249 transitions, 1544 flow [2021-11-22 14:29:03,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 249 transitions, 1498 flow, removed 5 selfloop flow, removed 18 redundant places. [2021-11-22 14:29:04,006 INFO L242 Difference]: Finished difference. Result has 178 places, 219 transitions, 1244 flow [2021-11-22 14:29:04,007 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=876, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1244, PETRI_PLACES=178, PETRI_TRANSITIONS=219} [2021-11-22 14:29:04,008 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 73 predicate places. [2021-11-22 14:29:04,008 INFO L470 AbstractCegarLoop]: Abstraction has has 178 places, 219 transitions, 1244 flow [2021-11-22 14:29:04,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.5) internal successors, (447), 6 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:04,008 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 14:29:04,009 INFO L254 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] [2021-11-22 14:29:04,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-22 14:29:04,009 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-22 14:29:04,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:29:04,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1373859952, now seen corresponding path program 1 times [2021-11-22 14:29:04,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:29:04,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658451898] [2021-11-22 14:29:04,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:29:04,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:29:04,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:29:04,158 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-22 14:29:04,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:29:04,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658451898] [2021-11-22 14:29:04,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658451898] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:29:04,159 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:29:04,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 14:29:04,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088644146] [2021-11-22 14:29:04,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:29:04,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 14:29:04,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:29:04,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 14:29:04,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-22 14:29:04,162 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 106 [2021-11-22 14:29:04,162 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 219 transitions, 1244 flow. Second operand has 6 states, 6 states have (on average 73.66666666666667) internal successors, (442), 6 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:04,162 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 14:29:04,163 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 106 [2021-11-22 14:29:04,163 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 14:29:04,633 INFO L129 PetriNetUnfolder]: 432/1376 cut-off events. [2021-11-22 14:29:04,634 INFO L130 PetriNetUnfolder]: For 1520/1527 co-relation queries the response was YES. [2021-11-22 14:29:04,642 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4043 conditions, 1376 events. 432/1376 cut-off events. For 1520/1527 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 8469 event pairs, 122 based on Foata normal form. 0/1341 useless extension candidates. Maximal degree in co-relation 3838. Up to 770 conditions per place. [2021-11-22 14:29:04,650 INFO L132 encePairwiseOnDemand]: 91/106 looper letters, 115 selfloop transitions, 58 changer transitions 18/290 dead transitions. [2021-11-22 14:29:04,650 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 290 transitions, 2038 flow [2021-11-22 14:29:04,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 14:29:04,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-22 14:29:04,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 512 transitions. [2021-11-22 14:29:04,653 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8050314465408805 [2021-11-22 14:29:04,653 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 512 transitions. [2021-11-22 14:29:04,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 512 transitions. [2021-11-22 14:29:04,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 14:29:04,654 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 512 transitions. [2021-11-22 14:29:04,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 85.33333333333333) internal successors, (512), 6 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:04,658 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:04,658 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:04,658 INFO L186 Difference]: Start difference. First operand has 178 places, 219 transitions, 1244 flow. Second operand 6 states and 512 transitions. [2021-11-22 14:29:04,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 290 transitions, 2038 flow [2021-11-22 14:29:04,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 290 transitions, 2020 flow, removed 9 selfloop flow, removed 0 redundant places. [2021-11-22 14:29:04,679 INFO L242 Difference]: Finished difference. Result has 188 places, 260 transitions, 1746 flow [2021-11-22 14:29:04,680 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=1226, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1746, PETRI_PLACES=188, PETRI_TRANSITIONS=260} [2021-11-22 14:29:04,683 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 83 predicate places. [2021-11-22 14:29:04,683 INFO L470 AbstractCegarLoop]: Abstraction has has 188 places, 260 transitions, 1746 flow [2021-11-22 14:29:04,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.66666666666667) internal successors, (442), 6 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:04,684 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 14:29:04,684 INFO L254 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] [2021-11-22 14:29:04,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-22 14:29:04,685 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-22 14:29:04,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:29:04,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1228962851, now seen corresponding path program 1 times [2021-11-22 14:29:04,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:29:04,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432448316] [2021-11-22 14:29:04,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:29:04,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:29:04,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:29:05,545 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-22 14:29:05,545 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:29:05,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432448316] [2021-11-22 14:29:05,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432448316] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:29:05,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:29:05,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-22 14:29:05,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668403930] [2021-11-22 14:29:05,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:29:05,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-22 14:29:05,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:29:05,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-22 14:29:05,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-11-22 14:29:05,549 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2021-11-22 14:29:05,550 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 260 transitions, 1746 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:05,550 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 14:29:05,550 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2021-11-22 14:29:05,550 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 14:29:06,582 INFO L129 PetriNetUnfolder]: 602/1868 cut-off events. [2021-11-22 14:29:06,582 INFO L130 PetriNetUnfolder]: For 3035/3049 co-relation queries the response was YES. [2021-11-22 14:29:06,593 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6137 conditions, 1868 events. 602/1868 cut-off events. For 3035/3049 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 12312 event pairs, 47 based on Foata normal form. 16/1870 useless extension candidates. Maximal degree in co-relation 5914. Up to 853 conditions per place. [2021-11-22 14:29:06,604 INFO L132 encePairwiseOnDemand]: 86/106 looper letters, 210 selfloop transitions, 77 changer transitions 45/421 dead transitions. [2021-11-22 14:29:06,604 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 421 transitions, 3468 flow [2021-11-22 14:29:06,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-22 14:29:06,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-11-22 14:29:06,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 888 transitions. [2021-11-22 14:29:06,608 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6981132075471698 [2021-11-22 14:29:06,608 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 888 transitions. [2021-11-22 14:29:06,608 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 888 transitions. [2021-11-22 14:29:06,609 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 14:29:06,610 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 888 transitions. [2021-11-22 14:29:06,612 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 74.0) internal successors, (888), 12 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:06,616 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:06,616 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:06,617 INFO L186 Difference]: Start difference. First operand has 188 places, 260 transitions, 1746 flow. Second operand 12 states and 888 transitions. [2021-11-22 14:29:06,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 421 transitions, 3468 flow [2021-11-22 14:29:06,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 421 transitions, 3388 flow, removed 40 selfloop flow, removed 0 redundant places. [2021-11-22 14:29:06,658 INFO L242 Difference]: Finished difference. Result has 207 places, 296 transitions, 2289 flow [2021-11-22 14:29:06,658 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=1678, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2289, PETRI_PLACES=207, PETRI_TRANSITIONS=296} [2021-11-22 14:29:06,659 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 102 predicate places. [2021-11-22 14:29:06,659 INFO L470 AbstractCegarLoop]: Abstraction has has 207 places, 296 transitions, 2289 flow [2021-11-22 14:29:06,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:06,660 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 14:29:06,660 INFO L254 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] [2021-11-22 14:29:06,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-22 14:29:06,661 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-22 14:29:06,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:29:06,661 INFO L85 PathProgramCache]: Analyzing trace with hash 723428963, now seen corresponding path program 2 times [2021-11-22 14:29:06,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:29:06,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646565777] [2021-11-22 14:29:06,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:29:06,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:29:06,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:29:07,209 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-22 14:29:07,209 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:29:07,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646565777] [2021-11-22 14:29:07,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646565777] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:29:07,209 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:29:07,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-22 14:29:07,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641161404] [2021-11-22 14:29:07,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:29:07,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-22 14:29:07,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:29:07,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-22 14:29:07,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-22 14:29:07,212 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2021-11-22 14:29:07,214 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 296 transitions, 2289 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:07,214 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 14:29:07,214 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2021-11-22 14:29:07,214 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 14:29:08,510 INFO L129 PetriNetUnfolder]: 569/1743 cut-off events. [2021-11-22 14:29:08,510 INFO L130 PetriNetUnfolder]: For 4655/4676 co-relation queries the response was YES. [2021-11-22 14:29:08,523 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6702 conditions, 1743 events. 569/1743 cut-off events. For 4655/4676 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 11463 event pairs, 62 based on Foata normal form. 13/1745 useless extension candidates. Maximal degree in co-relation 6470. Up to 869 conditions per place. [2021-11-22 14:29:08,536 INFO L132 encePairwiseOnDemand]: 86/106 looper letters, 191 selfloop transitions, 80 changer transitions 26/386 dead transitions. [2021-11-22 14:29:08,537 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 386 transitions, 3442 flow [2021-11-22 14:29:08,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 14:29:08,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-11-22 14:29:08,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 699 transitions. [2021-11-22 14:29:08,541 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7327044025157232 [2021-11-22 14:29:08,542 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 699 transitions. [2021-11-22 14:29:08,542 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 699 transitions. [2021-11-22 14:29:08,545 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 14:29:08,546 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 699 transitions. [2021-11-22 14:29:08,551 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 77.66666666666667) internal successors, (699), 9 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:08,556 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 106.0) internal successors, (1060), 10 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:08,557 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 106.0) internal successors, (1060), 10 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:08,557 INFO L186 Difference]: Start difference. First operand has 207 places, 296 transitions, 2289 flow. Second operand 9 states and 699 transitions. [2021-11-22 14:29:08,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 386 transitions, 3442 flow [2021-11-22 14:29:08,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 386 transitions, 3412 flow, removed 12 selfloop flow, removed 1 redundant places. [2021-11-22 14:29:08,612 INFO L242 Difference]: Finished difference. Result has 215 places, 300 transitions, 2496 flow [2021-11-22 14:29:08,614 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=2264, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2496, PETRI_PLACES=215, PETRI_TRANSITIONS=300} [2021-11-22 14:29:08,616 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 110 predicate places. [2021-11-22 14:29:08,616 INFO L470 AbstractCegarLoop]: Abstraction has has 215 places, 300 transitions, 2496 flow [2021-11-22 14:29:08,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:08,617 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 14:29:08,617 INFO L254 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] [2021-11-22 14:29:08,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-22 14:29:08,618 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-22 14:29:08,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:29:08,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1519693021, now seen corresponding path program 3 times [2021-11-22 14:29:08,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:29:08,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271368578] [2021-11-22 14:29:08,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:29:08,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:29:08,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:29:09,176 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-22 14:29:09,176 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:29:09,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271368578] [2021-11-22 14:29:09,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271368578] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:29:09,176 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:29:09,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-22 14:29:09,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091857467] [2021-11-22 14:29:09,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:29:09,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-22 14:29:09,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:29:09,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-22 14:29:09,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-11-22 14:29:09,179 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2021-11-22 14:29:09,180 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 300 transitions, 2496 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:09,180 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 14:29:09,180 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2021-11-22 14:29:09,180 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 14:29:10,749 INFO L129 PetriNetUnfolder]: 1034/3165 cut-off events. [2021-11-22 14:29:10,750 INFO L130 PetriNetUnfolder]: For 10314/10347 co-relation queries the response was YES. [2021-11-22 14:29:10,777 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12549 conditions, 3165 events. 1034/3165 cut-off events. For 10314/10347 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 24871 event pairs, 207 based on Foata normal form. 29/3169 useless extension candidates. Maximal degree in co-relation 12314. Up to 935 conditions per place. [2021-11-22 14:29:10,799 INFO L132 encePairwiseOnDemand]: 88/106 looper letters, 370 selfloop transitions, 98 changer transitions 28/585 dead transitions. [2021-11-22 14:29:10,799 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 585 transitions, 6046 flow [2021-11-22 14:29:10,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-22 14:29:10,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-11-22 14:29:10,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 803 transitions. [2021-11-22 14:29:10,803 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7575471698113208 [2021-11-22 14:29:10,803 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 803 transitions. [2021-11-22 14:29:10,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 803 transitions. [2021-11-22 14:29:10,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 14:29:10,804 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 803 transitions. [2021-11-22 14:29:10,806 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 80.3) internal successors, (803), 10 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:10,810 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:10,811 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:10,811 INFO L186 Difference]: Start difference. First operand has 215 places, 300 transitions, 2496 flow. Second operand 10 states and 803 transitions. [2021-11-22 14:29:10,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 585 transitions, 6046 flow [2021-11-22 14:29:10,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 585 transitions, 5910 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-11-22 14:29:10,912 INFO L242 Difference]: Finished difference. Result has 226 places, 379 transitions, 3906 flow [2021-11-22 14:29:10,913 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=2431, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3906, PETRI_PLACES=226, PETRI_TRANSITIONS=379} [2021-11-22 14:29:10,913 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 121 predicate places. [2021-11-22 14:29:10,914 INFO L470 AbstractCegarLoop]: Abstraction has has 226 places, 379 transitions, 3906 flow [2021-11-22 14:29:10,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:10,914 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 14:29:10,915 INFO L254 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] [2021-11-22 14:29:10,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-22 14:29:10,915 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-22 14:29:10,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:29:10,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1905079665, now seen corresponding path program 4 times [2021-11-22 14:29:10,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:29:10,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536205994] [2021-11-22 14:29:10,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:29:10,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:29:10,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:29:11,567 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-22 14:29:11,567 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:29:11,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536205994] [2021-11-22 14:29:11,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536205994] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:29:11,568 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:29:11,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-22 14:29:11,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186557612] [2021-11-22 14:29:11,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:29:11,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-22 14:29:11,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:29:11,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-22 14:29:11,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-22 14:29:11,571 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2021-11-22 14:29:11,572 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 379 transitions, 3906 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:11,572 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 14:29:11,572 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2021-11-22 14:29:11,572 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 14:29:13,508 INFO L129 PetriNetUnfolder]: 1045/3113 cut-off events. [2021-11-22 14:29:13,508 INFO L130 PetriNetUnfolder]: For 13878/13913 co-relation queries the response was YES. [2021-11-22 14:29:13,533 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13481 conditions, 3113 events. 1045/3113 cut-off events. For 13878/13913 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 24077 event pairs, 258 based on Foata normal form. 28/3123 useless extension candidates. Maximal degree in co-relation 13240. Up to 1595 conditions per place. [2021-11-22 14:29:13,561 INFO L132 encePairwiseOnDemand]: 86/106 looper letters, 219 selfloop transitions, 149 changer transitions 20/477 dead transitions. [2021-11-22 14:29:13,562 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 477 transitions, 5418 flow [2021-11-22 14:29:13,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-22 14:29:13,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-11-22 14:29:13,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 893 transitions. [2021-11-22 14:29:13,565 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7020440251572327 [2021-11-22 14:29:13,565 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 893 transitions. [2021-11-22 14:29:13,566 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 893 transitions. [2021-11-22 14:29:13,566 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 14:29:13,566 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 893 transitions. [2021-11-22 14:29:13,571 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 74.41666666666667) internal successors, (893), 12 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:13,574 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:13,574 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:13,575 INFO L186 Difference]: Start difference. First operand has 226 places, 379 transitions, 3906 flow. Second operand 12 states and 893 transitions. [2021-11-22 14:29:13,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 477 transitions, 5418 flow [2021-11-22 14:29:13,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 477 transitions, 5394 flow, removed 9 selfloop flow, removed 1 redundant places. [2021-11-22 14:29:13,715 INFO L242 Difference]: Finished difference. Result has 241 places, 394 transitions, 4437 flow [2021-11-22 14:29:13,716 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=3886, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=379, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=137, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4437, PETRI_PLACES=241, PETRI_TRANSITIONS=394} [2021-11-22 14:29:13,716 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 136 predicate places. [2021-11-22 14:29:13,716 INFO L470 AbstractCegarLoop]: Abstraction has has 241 places, 394 transitions, 4437 flow [2021-11-22 14:29:13,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:13,717 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 14:29:13,717 INFO L254 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] [2021-11-22 14:29:13,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-22 14:29:13,718 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-22 14:29:13,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:29:13,718 INFO L85 PathProgramCache]: Analyzing trace with hash -985176137, now seen corresponding path program 5 times [2021-11-22 14:29:13,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:29:13,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086565491] [2021-11-22 14:29:13,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:29:13,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:29:13,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:29:14,379 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-22 14:29:14,379 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:29:14,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086565491] [2021-11-22 14:29:14,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086565491] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:29:14,380 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:29:14,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-22 14:29:14,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634534122] [2021-11-22 14:29:14,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:29:14,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-22 14:29:14,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:29:14,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-22 14:29:14,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-22 14:29:14,382 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2021-11-22 14:29:14,383 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 394 transitions, 4437 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:14,383 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 14:29:14,383 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2021-11-22 14:29:14,383 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 14:29:16,056 INFO L129 PetriNetUnfolder]: 1072/3187 cut-off events. [2021-11-22 14:29:16,057 INFO L130 PetriNetUnfolder]: For 17469/17507 co-relation queries the response was YES. [2021-11-22 14:29:16,081 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14641 conditions, 3187 events. 1072/3187 cut-off events. For 17469/17507 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 24851 event pairs, 128 based on Foata normal form. 32/3196 useless extension candidates. Maximal degree in co-relation 14395. Up to 945 conditions per place. [2021-11-22 14:29:16,093 INFO L132 encePairwiseOnDemand]: 88/106 looper letters, 413 selfloop transitions, 100 changer transitions 28/630 dead transitions. [2021-11-22 14:29:16,093 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 630 transitions, 7662 flow [2021-11-22 14:29:16,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-22 14:29:16,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-22 14:29:16,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 844 transitions. [2021-11-22 14:29:16,097 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7238421955403087 [2021-11-22 14:29:16,097 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 844 transitions. [2021-11-22 14:29:16,097 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 844 transitions. [2021-11-22 14:29:16,098 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 14:29:16,098 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 844 transitions. [2021-11-22 14:29:16,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 76.72727272727273) internal successors, (844), 11 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:16,103 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:16,104 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:16,104 INFO L186 Difference]: Start difference. First operand has 241 places, 394 transitions, 4437 flow. Second operand 11 states and 844 transitions. [2021-11-22 14:29:16,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 630 transitions, 7662 flow [2021-11-22 14:29:16,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 630 transitions, 7330 flow, removed 19 selfloop flow, removed 4 redundant places. [2021-11-22 14:29:16,274 INFO L242 Difference]: Finished difference. Result has 254 places, 420 transitions, 4930 flow [2021-11-22 14:29:16,275 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=4177, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=394, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=303, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=4930, PETRI_PLACES=254, PETRI_TRANSITIONS=420} [2021-11-22 14:29:16,275 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 149 predicate places. [2021-11-22 14:29:16,275 INFO L470 AbstractCegarLoop]: Abstraction has has 254 places, 420 transitions, 4930 flow [2021-11-22 14:29:16,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:16,276 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 14:29:16,276 INFO L254 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] [2021-11-22 14:29:16,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-22 14:29:16,277 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-22 14:29:16,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:29:16,277 INFO L85 PathProgramCache]: Analyzing trace with hash 812752821, now seen corresponding path program 6 times [2021-11-22 14:29:16,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:29:16,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62406272] [2021-11-22 14:29:16,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:29:16,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:29:16,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:29:16,937 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-22 14:29:16,938 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:29:16,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62406272] [2021-11-22 14:29:16,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62406272] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:29:16,938 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:29:16,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-11-22 14:29:16,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140993883] [2021-11-22 14:29:16,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:29:16,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-22 14:29:16,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:29:16,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-22 14:29:16,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2021-11-22 14:29:16,950 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 106 [2021-11-22 14:29:16,960 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 420 transitions, 4930 flow. Second operand has 19 states, 19 states have (on average 54.526315789473685) internal successors, (1036), 19 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:16,969 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 14:29:16,969 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 106 [2021-11-22 14:29:16,969 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 14:29:19,473 INFO L129 PetriNetUnfolder]: 1615/4287 cut-off events. [2021-11-22 14:29:19,474 INFO L130 PetriNetUnfolder]: For 27912/27932 co-relation queries the response was YES. [2021-11-22 14:29:19,517 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20945 conditions, 4287 events. 1615/4287 cut-off events. For 27912/27932 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 34315 event pairs, 162 based on Foata normal form. 5/4259 useless extension candidates. Maximal degree in co-relation 20810. Up to 1124 conditions per place. [2021-11-22 14:29:19,536 INFO L132 encePairwiseOnDemand]: 77/106 looper letters, 344 selfloop transitions, 241 changer transitions 50/716 dead transitions. [2021-11-22 14:29:19,536 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 716 transitions, 9446 flow [2021-11-22 14:29:19,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-22 14:29:19,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2021-11-22 14:29:19,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1421 transitions. [2021-11-22 14:29:19,543 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6093481989708405 [2021-11-22 14:29:19,544 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 1421 transitions. [2021-11-22 14:29:19,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 1421 transitions. [2021-11-22 14:29:19,545 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 14:29:19,545 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 1421 transitions. [2021-11-22 14:29:19,549 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 64.5909090909091) internal successors, (1421), 22 states have internal predecessors, (1421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:19,553 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 106.0) internal successors, (2438), 23 states have internal predecessors, (2438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:19,554 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 106.0) internal successors, (2438), 23 states have internal predecessors, (2438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:19,554 INFO L186 Difference]: Start difference. First operand has 254 places, 420 transitions, 4930 flow. Second operand 22 states and 1421 transitions. [2021-11-22 14:29:19,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 716 transitions, 9446 flow [2021-11-22 14:29:19,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 716 transitions, 9316 flow, removed 60 selfloop flow, removed 1 redundant places. [2021-11-22 14:29:19,737 INFO L242 Difference]: Finished difference. Result has 282 places, 521 transitions, 7064 flow [2021-11-22 14:29:19,737 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=4819, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=420, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=148, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=7064, PETRI_PLACES=282, PETRI_TRANSITIONS=521} [2021-11-22 14:29:19,738 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 177 predicate places. [2021-11-22 14:29:19,738 INFO L470 AbstractCegarLoop]: Abstraction has has 282 places, 521 transitions, 7064 flow [2021-11-22 14:29:19,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 54.526315789473685) internal successors, (1036), 19 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:19,738 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 14:29:19,739 INFO L254 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] [2021-11-22 14:29:19,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-22 14:29:19,739 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-22 14:29:19,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:29:19,739 INFO L85 PathProgramCache]: Analyzing trace with hash -605997595, now seen corresponding path program 7 times [2021-11-22 14:29:19,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:29:19,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514331489] [2021-11-22 14:29:19,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:29:19,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:29:19,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:29:20,181 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-22 14:29:20,182 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:29:20,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514331489] [2021-11-22 14:29:20,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514331489] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:29:20,182 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:29:20,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-22 14:29:20,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976722180] [2021-11-22 14:29:20,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:29:20,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-22 14:29:20,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:29:20,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-22 14:29:20,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-22 14:29:20,183 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2021-11-22 14:29:20,184 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 521 transitions, 7064 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:20,184 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 14:29:20,184 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2021-11-22 14:29:20,185 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 14:29:22,102 INFO L129 PetriNetUnfolder]: 1315/3903 cut-off events. [2021-11-22 14:29:22,102 INFO L130 PetriNetUnfolder]: For 29979/30019 co-relation queries the response was YES. [2021-11-22 14:29:22,129 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20166 conditions, 3903 events. 1315/3903 cut-off events. For 29979/30019 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 31775 event pairs, 231 based on Foata normal form. 24/3895 useless extension candidates. Maximal degree in co-relation 20013. Up to 1130 conditions per place. [2021-11-22 14:29:22,149 INFO L132 encePairwiseOnDemand]: 88/106 looper letters, 489 selfloop transitions, 155 changer transitions 34/772 dead transitions. [2021-11-22 14:29:22,149 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 772 transitions, 10634 flow [2021-11-22 14:29:22,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-22 14:29:22,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-22 14:29:22,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 875 transitions. [2021-11-22 14:29:22,152 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7504288164665524 [2021-11-22 14:29:22,152 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 875 transitions. [2021-11-22 14:29:22,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 875 transitions. [2021-11-22 14:29:22,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 14:29:22,153 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 875 transitions. [2021-11-22 14:29:22,155 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 79.54545454545455) internal successors, (875), 11 states have internal predecessors, (875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:22,157 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:22,158 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:22,158 INFO L186 Difference]: Start difference. First operand has 282 places, 521 transitions, 7064 flow. Second operand 11 states and 875 transitions. [2021-11-22 14:29:22,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 772 transitions, 10634 flow [2021-11-22 14:29:22,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 772 transitions, 10412 flow, removed 68 selfloop flow, removed 4 redundant places. [2021-11-22 14:29:22,481 INFO L242 Difference]: Finished difference. Result has 293 places, 543 transitions, 7678 flow [2021-11-22 14:29:22,482 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=6862, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=521, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=133, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=376, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=7678, PETRI_PLACES=293, PETRI_TRANSITIONS=543} [2021-11-22 14:29:22,483 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 188 predicate places. [2021-11-22 14:29:22,483 INFO L470 AbstractCegarLoop]: Abstraction has has 293 places, 543 transitions, 7678 flow [2021-11-22 14:29:22,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:22,483 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 14:29:22,484 INFO L254 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] [2021-11-22 14:29:22,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-22 14:29:22,484 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-22 14:29:22,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:29:22,485 INFO L85 PathProgramCache]: Analyzing trace with hash 2042981517, now seen corresponding path program 8 times [2021-11-22 14:29:22,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:29:22,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931190721] [2021-11-22 14:29:22,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:29:22,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:29:22,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:29:23,198 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-22 14:29:23,198 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:29:23,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931190721] [2021-11-22 14:29:23,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931190721] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:29:23,199 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:29:23,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-22 14:29:23,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444230030] [2021-11-22 14:29:23,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:29:23,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-22 14:29:23,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:29:23,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-22 14:29:23,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-11-22 14:29:23,201 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2021-11-22 14:29:23,201 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 543 transitions, 7678 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:23,202 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 14:29:23,202 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2021-11-22 14:29:23,202 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 14:29:25,219 INFO L129 PetriNetUnfolder]: 1319/3844 cut-off events. [2021-11-22 14:29:25,219 INFO L130 PetriNetUnfolder]: For 35308/35344 co-relation queries the response was YES. [2021-11-22 14:29:25,258 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20922 conditions, 3844 events. 1319/3844 cut-off events. For 35308/35344 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 31237 event pairs, 283 based on Foata normal form. 15/3828 useless extension candidates. Maximal degree in co-relation 20759. Up to 1926 conditions per place. [2021-11-22 14:29:25,277 INFO L132 encePairwiseOnDemand]: 86/106 looper letters, 274 selfloop transitions, 245 changer transitions 20/633 dead transitions. [2021-11-22 14:29:25,278 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 633 transitions, 9795 flow [2021-11-22 14:29:25,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-22 14:29:25,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-11-22 14:29:25,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 996 transitions. [2021-11-22 14:29:25,281 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6711590296495957 [2021-11-22 14:29:25,281 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 996 transitions. [2021-11-22 14:29:25,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 996 transitions. [2021-11-22 14:29:25,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 14:29:25,283 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 996 transitions. [2021-11-22 14:29:25,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 71.14285714285714) internal successors, (996), 14 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:25,288 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:25,289 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:25,289 INFO L186 Difference]: Start difference. First operand has 293 places, 543 transitions, 7678 flow. Second operand 14 states and 996 transitions. [2021-11-22 14:29:25,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 633 transitions, 9795 flow [2021-11-22 14:29:25,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 633 transitions, 9376 flow, removed 75 selfloop flow, removed 4 redundant places. [2021-11-22 14:29:25,638 INFO L242 Difference]: Finished difference. Result has 310 places, 568 transitions, 8446 flow [2021-11-22 14:29:25,638 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=7271, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=543, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=222, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=312, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=8446, PETRI_PLACES=310, PETRI_TRANSITIONS=568} [2021-11-22 14:29:25,639 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 205 predicate places. [2021-11-22 14:29:25,639 INFO L470 AbstractCegarLoop]: Abstraction has has 310 places, 568 transitions, 8446 flow [2021-11-22 14:29:25,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:25,639 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 14:29:25,640 INFO L254 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] [2021-11-22 14:29:25,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-22 14:29:25,640 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-22 14:29:25,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:29:25,641 INFO L85 PathProgramCache]: Analyzing trace with hash 138609596, now seen corresponding path program 1 times [2021-11-22 14:29:25,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:29:25,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283348308] [2021-11-22 14:29:25,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:29:25,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:29:25,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:29:26,112 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-22 14:29:26,112 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:29:26,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283348308] [2021-11-22 14:29:26,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283348308] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:29:26,113 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:29:26,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-22 14:29:26,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372738519] [2021-11-22 14:29:26,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:29:26,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-22 14:29:26,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:29:26,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-22 14:29:26,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-22 14:29:26,115 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2021-11-22 14:29:26,116 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 568 transitions, 8446 flow. Second operand has 10 states, 10 states have (on average 65.4) internal successors, (654), 10 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:26,116 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 14:29:26,116 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2021-11-22 14:29:26,116 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 14:29:28,000 INFO L129 PetriNetUnfolder]: 1220/3742 cut-off events. [2021-11-22 14:29:28,000 INFO L130 PetriNetUnfolder]: For 36194/36223 co-relation queries the response was YES. [2021-11-22 14:29:28,029 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20606 conditions, 3742 events. 1220/3742 cut-off events. For 36194/36223 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 30792 event pairs, 117 based on Foata normal form. 13/3726 useless extension candidates. Maximal degree in co-relation 20427. Up to 1023 conditions per place. [2021-11-22 14:29:28,044 INFO L132 encePairwiseOnDemand]: 90/106 looper letters, 565 selfloop transitions, 133 changer transitions 42/843 dead transitions. [2021-11-22 14:29:28,044 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 843 transitions, 12700 flow [2021-11-22 14:29:28,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-22 14:29:28,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-11-22 14:29:28,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1216 transitions. [2021-11-22 14:29:28,060 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7169811320754716 [2021-11-22 14:29:28,061 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1216 transitions. [2021-11-22 14:29:28,061 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1216 transitions. [2021-11-22 14:29:28,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 14:29:28,062 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1216 transitions. [2021-11-22 14:29:28,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 76.0) internal successors, (1216), 16 states have internal predecessors, (1216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:28,067 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 106.0) internal successors, (1802), 17 states have internal predecessors, (1802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:28,068 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 106.0) internal successors, (1802), 17 states have internal predecessors, (1802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:28,068 INFO L186 Difference]: Start difference. First operand has 310 places, 568 transitions, 8446 flow. Second operand 16 states and 1216 transitions. [2021-11-22 14:29:28,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 843 transitions, 12700 flow [2021-11-22 14:29:28,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 843 transitions, 12362 flow, removed 126 selfloop flow, removed 2 redundant places. [2021-11-22 14:29:28,390 INFO L242 Difference]: Finished difference. Result has 332 places, 618 transitions, 9303 flow [2021-11-22 14:29:28,391 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=8164, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=568, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=457, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=9303, PETRI_PLACES=332, PETRI_TRANSITIONS=618} [2021-11-22 14:29:28,392 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 227 predicate places. [2021-11-22 14:29:28,392 INFO L470 AbstractCegarLoop]: Abstraction has has 332 places, 618 transitions, 9303 flow [2021-11-22 14:29:28,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.4) internal successors, (654), 10 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:28,392 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 14:29:28,393 INFO L254 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] [2021-11-22 14:29:28,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-22 14:29:28,393 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-22 14:29:28,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:29:28,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1016571913, now seen corresponding path program 9 times [2021-11-22 14:29:28,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:29:28,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530045166] [2021-11-22 14:29:28,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:29:28,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:29:28,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:29:29,344 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-22 14:29:29,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:29:29,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530045166] [2021-11-22 14:29:29,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530045166] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:29:29,345 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:29:29,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-11-22 14:29:29,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184065386] [2021-11-22 14:29:29,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:29:29,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-22 14:29:29,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:29:29,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-22 14:29:29,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2021-11-22 14:29:29,347 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 106 [2021-11-22 14:29:29,348 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 618 transitions, 9303 flow. Second operand has 19 states, 19 states have (on average 54.526315789473685) internal successors, (1036), 19 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:29,349 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 14:29:29,349 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 106 [2021-11-22 14:29:29,349 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 14:29:32,917 INFO L129 PetriNetUnfolder]: 1553/4211 cut-off events. [2021-11-22 14:29:32,917 INFO L130 PetriNetUnfolder]: For 42283/42306 co-relation queries the response was YES. [2021-11-22 14:29:33,064 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23800 conditions, 4211 events. 1553/4211 cut-off events. For 42283/42306 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 33527 event pairs, 182 based on Foata normal form. 7/4185 useless extension candidates. Maximal degree in co-relation 23604. Up to 865 conditions per place. [2021-11-22 14:29:33,090 INFO L132 encePairwiseOnDemand]: 76/106 looper letters, 613 selfloop transitions, 238 changer transitions 69/1001 dead transitions. [2021-11-22 14:29:33,090 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 357 places, 1001 transitions, 14763 flow [2021-11-22 14:29:33,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-22 14:29:33,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2021-11-22 14:29:33,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 1988 transitions. [2021-11-22 14:29:33,095 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6251572327044025 [2021-11-22 14:29:33,095 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 1988 transitions. [2021-11-22 14:29:33,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 1988 transitions. [2021-11-22 14:29:33,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 14:29:33,096 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 1988 transitions. [2021-11-22 14:29:33,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 66.26666666666667) internal successors, (1988), 30 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:33,105 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 106.0) internal successors, (3286), 31 states have internal predecessors, (3286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:33,106 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 106.0) internal successors, (3286), 31 states have internal predecessors, (3286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:33,106 INFO L186 Difference]: Start difference. First operand has 332 places, 618 transitions, 9303 flow. Second operand 30 states and 1988 transitions. [2021-11-22 14:29:33,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 357 places, 1001 transitions, 14763 flow [2021-11-22 14:29:33,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 1001 transitions, 14691 flow, removed 26 selfloop flow, removed 3 redundant places. [2021-11-22 14:29:33,415 INFO L242 Difference]: Finished difference. Result has 360 places, 655 transitions, 10454 flow [2021-11-22 14:29:33,416 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=9268, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=618, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=201, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=10454, PETRI_PLACES=360, PETRI_TRANSITIONS=655} [2021-11-22 14:29:33,417 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 255 predicate places. [2021-11-22 14:29:33,417 INFO L470 AbstractCegarLoop]: Abstraction has has 360 places, 655 transitions, 10454 flow [2021-11-22 14:29:33,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 54.526315789473685) internal successors, (1036), 19 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:33,417 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 14:29:33,418 INFO L254 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] [2021-11-22 14:29:33,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-22 14:29:33,418 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-22 14:29:33,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:29:33,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1859354779, now seen corresponding path program 10 times [2021-11-22 14:29:33,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:29:33,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447156199] [2021-11-22 14:29:33,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:29:33,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:29:33,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:29:34,366 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-22 14:29:34,366 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:29:34,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447156199] [2021-11-22 14:29:34,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447156199] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:29:34,367 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:29:34,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-11-22 14:29:34,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455218157] [2021-11-22 14:29:34,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:29:34,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-22 14:29:34,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:29:34,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-22 14:29:34,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2021-11-22 14:29:34,369 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 106 [2021-11-22 14:29:34,370 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 655 transitions, 10454 flow. Second operand has 19 states, 19 states have (on average 54.526315789473685) internal successors, (1036), 19 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:34,370 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 14:29:34,370 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 106 [2021-11-22 14:29:34,371 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 14:29:38,344 INFO L129 PetriNetUnfolder]: 2219/5797 cut-off events. [2021-11-22 14:29:38,344 INFO L130 PetriNetUnfolder]: For 73904/73953 co-relation queries the response was YES. [2021-11-22 14:29:38,402 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37632 conditions, 5797 events. 2219/5797 cut-off events. For 73904/73953 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 49321 event pairs, 323 based on Foata normal form. 16/5761 useless extension candidates. Maximal degree in co-relation 37431. Up to 2262 conditions per place. [2021-11-22 14:29:38,421 INFO L132 encePairwiseOnDemand]: 79/106 looper letters, 791 selfloop transitions, 327 changer transitions 23/1222 dead transitions. [2021-11-22 14:29:38,576 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 384 places, 1222 transitions, 21950 flow [2021-11-22 14:29:38,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-22 14:29:38,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2021-11-22 14:29:38,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 1703 transitions. [2021-11-22 14:29:38,580 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6179245283018868 [2021-11-22 14:29:38,580 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 1703 transitions. [2021-11-22 14:29:38,581 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 1703 transitions. [2021-11-22 14:29:38,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 14:29:38,581 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 1703 transitions. [2021-11-22 14:29:38,584 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 65.5) internal successors, (1703), 26 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:38,588 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 106.0) internal successors, (2862), 27 states have internal predecessors, (2862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:38,589 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 106.0) internal successors, (2862), 27 states have internal predecessors, (2862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:38,589 INFO L186 Difference]: Start difference. First operand has 360 places, 655 transitions, 10454 flow. Second operand 26 states and 1703 transitions. [2021-11-22 14:29:38,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 384 places, 1222 transitions, 21950 flow [2021-11-22 14:29:39,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 375 places, 1222 transitions, 21630 flow, removed 124 selfloop flow, removed 9 redundant places. [2021-11-22 14:29:39,218 INFO L242 Difference]: Finished difference. Result has 386 places, 866 transitions, 16576 flow [2021-11-22 14:29:39,219 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=10300, PETRI_DIFFERENCE_MINUEND_PLACES=350, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=655, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=194, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=454, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=16576, PETRI_PLACES=386, PETRI_TRANSITIONS=866} [2021-11-22 14:29:39,219 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 281 predicate places. [2021-11-22 14:29:39,219 INFO L470 AbstractCegarLoop]: Abstraction has has 386 places, 866 transitions, 16576 flow [2021-11-22 14:29:39,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 54.526315789473685) internal successors, (1036), 19 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:39,220 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 14:29:39,220 INFO L254 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] [2021-11-22 14:29:39,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-22 14:29:39,221 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-22 14:29:39,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:29:39,221 INFO L85 PathProgramCache]: Analyzing trace with hash -2143611583, now seen corresponding path program 11 times [2021-11-22 14:29:39,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:29:39,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953430796] [2021-11-22 14:29:39,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:29:39,222 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:29:39,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:29:39,901 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-22 14:29:39,902 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:29:39,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953430796] [2021-11-22 14:29:39,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953430796] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:29:39,902 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:29:39,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-22 14:29:39,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427348993] [2021-11-22 14:29:39,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:29:39,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-22 14:29:39,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:29:39,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-22 14:29:39,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-22 14:29:39,904 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2021-11-22 14:29:39,905 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 866 transitions, 16576 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:39,905 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 14:29:39,905 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2021-11-22 14:29:39,905 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 14:29:42,945 INFO L129 PetriNetUnfolder]: 1892/5331 cut-off events. [2021-11-22 14:29:42,945 INFO L130 PetriNetUnfolder]: For 77814/77869 co-relation queries the response was YES. [2021-11-22 14:29:43,002 INFO L84 FinitePrefix]: Finished finitePrefix Result has 36204 conditions, 5331 events. 1892/5331 cut-off events. For 77814/77869 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 46557 event pairs, 280 based on Foata normal form. 27/5313 useless extension candidates. Maximal degree in co-relation 35992. Up to 1724 conditions per place. [2021-11-22 14:29:43,023 INFO L132 encePairwiseOnDemand]: 88/106 looper letters, 508 selfloop transitions, 411 changer transitions 20/1039 dead transitions. [2021-11-22 14:29:43,023 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 1039 transitions, 20273 flow [2021-11-22 14:29:43,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-22 14:29:43,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-22 14:29:43,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 859 transitions. [2021-11-22 14:29:43,027 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7367066895368782 [2021-11-22 14:29:43,027 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 859 transitions. [2021-11-22 14:29:43,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 859 transitions. [2021-11-22 14:29:43,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 14:29:43,028 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 859 transitions. [2021-11-22 14:29:43,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 78.0909090909091) internal successors, (859), 11 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:43,032 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:43,032 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:43,033 INFO L186 Difference]: Start difference. First operand has 386 places, 866 transitions, 16576 flow. Second operand 11 states and 859 transitions. [2021-11-22 14:29:43,033 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 1039 transitions, 20273 flow [2021-11-22 14:29:43,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 389 places, 1039 transitions, 20186 flow, removed 30 selfloop flow, removed 7 redundant places. [2021-11-22 14:29:43,796 INFO L242 Difference]: Finished difference. Result has 392 places, 882 transitions, 17927 flow [2021-11-22 14:29:43,797 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=16489, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=866, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=395, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=465, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=17927, PETRI_PLACES=392, PETRI_TRANSITIONS=882} [2021-11-22 14:29:43,798 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 287 predicate places. [2021-11-22 14:29:43,798 INFO L470 AbstractCegarLoop]: Abstraction has has 392 places, 882 transitions, 17927 flow [2021-11-22 14:29:43,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:43,799 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 14:29:43,799 INFO L254 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] [2021-11-22 14:29:43,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-22 14:29:43,799 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-22 14:29:43,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:29:43,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1159954923, now seen corresponding path program 12 times [2021-11-22 14:29:43,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:29:43,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657099153] [2021-11-22 14:29:43,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:29:43,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:29:43,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:29:44,412 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-22 14:29:44,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:29:44,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657099153] [2021-11-22 14:29:44,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657099153] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:29:44,413 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:29:44,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-22 14:29:44,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251323198] [2021-11-22 14:29:44,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:29:44,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-22 14:29:44,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:29:44,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-22 14:29:44,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-22 14:29:44,415 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2021-11-22 14:29:44,416 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 882 transitions, 17927 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:44,416 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 14:29:44,416 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2021-11-22 14:29:44,416 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 14:29:47,430 INFO L129 PetriNetUnfolder]: 1892/5362 cut-off events. [2021-11-22 14:29:47,430 INFO L130 PetriNetUnfolder]: For 87121/87178 co-relation queries the response was YES. [2021-11-22 14:29:47,482 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37567 conditions, 5362 events. 1892/5362 cut-off events. For 87121/87178 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 46734 event pairs, 297 based on Foata normal form. 25/5335 useless extension candidates. Maximal degree in co-relation 37351. Up to 1726 conditions per place. [2021-11-22 14:29:47,500 INFO L132 encePairwiseOnDemand]: 88/106 looper letters, 508 selfloop transitions, 413 changer transitions 19/1040 dead transitions. [2021-11-22 14:29:47,500 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 402 places, 1040 transitions, 21323 flow [2021-11-22 14:29:47,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-22 14:29:47,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-22 14:29:47,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 849 transitions. [2021-11-22 14:29:47,502 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7281303602058319 [2021-11-22 14:29:47,502 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 849 transitions. [2021-11-22 14:29:47,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 849 transitions. [2021-11-22 14:29:47,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 14:29:47,502 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 849 transitions. [2021-11-22 14:29:47,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 77.18181818181819) internal successors, (849), 11 states have internal predecessors, (849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:47,505 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:47,506 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:47,506 INFO L186 Difference]: Start difference. First operand has 392 places, 882 transitions, 17927 flow. Second operand 11 states and 849 transitions. [2021-11-22 14:29:47,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 402 places, 1040 transitions, 21323 flow [2021-11-22 14:29:48,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 1040 transitions, 20707 flow, removed 12 selfloop flow, removed 6 redundant places. [2021-11-22 14:29:48,392 INFO L242 Difference]: Finished difference. Result has 400 places, 888 transitions, 18590 flow [2021-11-22 14:29:48,393 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=17315, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=882, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=407, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=472, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=18590, PETRI_PLACES=400, PETRI_TRANSITIONS=888} [2021-11-22 14:29:48,393 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 295 predicate places. [2021-11-22 14:29:48,393 INFO L470 AbstractCegarLoop]: Abstraction has has 400 places, 888 transitions, 18590 flow [2021-11-22 14:29:48,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:48,394 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 14:29:48,394 INFO L254 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] [2021-11-22 14:29:48,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-22 14:29:48,394 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-22 14:29:48,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:29:48,395 INFO L85 PathProgramCache]: Analyzing trace with hash 2013931571, now seen corresponding path program 13 times [2021-11-22 14:29:48,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:29:48,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003875233] [2021-11-22 14:29:48,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:29:48,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:29:48,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:29:48,852 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-22 14:29:48,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:29:48,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003875233] [2021-11-22 14:29:48,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003875233] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:29:48,852 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:29:48,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-22 14:29:48,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868418747] [2021-11-22 14:29:48,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:29:48,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-22 14:29:48,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:29:48,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-22 14:29:48,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-11-22 14:29:48,854 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2021-11-22 14:29:48,855 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 400 places, 888 transitions, 18590 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:48,855 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 14:29:48,855 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2021-11-22 14:29:48,855 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 14:29:51,647 INFO L129 PetriNetUnfolder]: 1903/5361 cut-off events. [2021-11-22 14:29:51,647 INFO L130 PetriNetUnfolder]: For 92504/92559 co-relation queries the response was YES. [2021-11-22 14:29:51,712 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38262 conditions, 5361 events. 1903/5361 cut-off events. For 92504/92559 co-relation queries the response was YES. Maximal size of possible extension queue 212. Compared 46801 event pairs, 365 based on Foata normal form. 23/5321 useless extension candidates. Maximal degree in co-relation 38042. Up to 2735 conditions per place. [2021-11-22 14:29:51,734 INFO L132 encePairwiseOnDemand]: 86/106 looper letters, 473 selfloop transitions, 377 changer transitions 16/966 dead transitions. [2021-11-22 14:29:51,734 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 966 transitions, 21148 flow [2021-11-22 14:29:51,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-22 14:29:51,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-11-22 14:29:51,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 740 transitions. [2021-11-22 14:29:51,736 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6981132075471698 [2021-11-22 14:29:51,736 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 740 transitions. [2021-11-22 14:29:51,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 740 transitions. [2021-11-22 14:29:51,736 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 14:29:51,736 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 740 transitions. [2021-11-22 14:29:51,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:51,739 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:51,739 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:51,739 INFO L186 Difference]: Start difference. First operand has 400 places, 888 transitions, 18590 flow. Second operand 10 states and 740 transitions. [2021-11-22 14:29:51,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 966 transitions, 21148 flow [2021-11-22 14:29:52,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 403 places, 966 transitions, 20578 flow, removed 31 selfloop flow, removed 6 redundant places. [2021-11-22 14:29:52,638 INFO L242 Difference]: Finished difference. Result has 408 places, 901 transitions, 19052 flow [2021-11-22 14:29:52,639 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=18025, PETRI_DIFFERENCE_MINUEND_PLACES=394, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=888, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=364, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=516, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=19052, PETRI_PLACES=408, PETRI_TRANSITIONS=901} [2021-11-22 14:29:52,639 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 303 predicate places. [2021-11-22 14:29:52,640 INFO L470 AbstractCegarLoop]: Abstraction has has 408 places, 901 transitions, 19052 flow [2021-11-22 14:29:52,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:52,640 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 14:29:52,640 INFO L254 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] [2021-11-22 14:29:52,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-22 14:29:52,641 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-22 14:29:52,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:29:52,641 INFO L85 PathProgramCache]: Analyzing trace with hash -293919139, now seen corresponding path program 14 times [2021-11-22 14:29:52,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:29:52,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247971395] [2021-11-22 14:29:52,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:29:52,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:29:52,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:29:53,087 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-22 14:29:53,087 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:29:53,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247971395] [2021-11-22 14:29:53,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247971395] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:29:53,088 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:29:53,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-22 14:29:53,088 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363466237] [2021-11-22 14:29:53,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:29:53,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-22 14:29:53,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:29:53,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-22 14:29:53,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-22 14:29:53,090 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2021-11-22 14:29:53,090 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 901 transitions, 19052 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:53,091 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 14:29:53,091 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2021-11-22 14:29:53,091 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 14:29:56,007 INFO L129 PetriNetUnfolder]: 1902/5383 cut-off events. [2021-11-22 14:29:56,007 INFO L130 PetriNetUnfolder]: For 95319/95376 co-relation queries the response was YES. [2021-11-22 14:29:56,066 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38563 conditions, 5383 events. 1902/5383 cut-off events. For 95319/95376 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 47048 event pairs, 320 based on Foata normal form. 25/5378 useless extension candidates. Maximal degree in co-relation 38331. Up to 2762 conditions per place. [2021-11-22 14:29:56,084 INFO L132 encePairwiseOnDemand]: 86/106 looper letters, 445 selfloop transitions, 415 changer transitions 16/976 dead transitions. [2021-11-22 14:29:56,084 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 976 transitions, 21475 flow [2021-11-22 14:29:56,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-22 14:29:56,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-22 14:29:56,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 825 transitions. [2021-11-22 14:29:56,089 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7075471698113207 [2021-11-22 14:29:56,089 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 825 transitions. [2021-11-22 14:29:56,090 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 825 transitions. [2021-11-22 14:29:56,090 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 14:29:56,090 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 825 transitions. [2021-11-22 14:29:56,092 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 75.0) internal successors, (825), 11 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:56,094 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:56,095 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:56,095 INFO L186 Difference]: Start difference. First operand has 408 places, 901 transitions, 19052 flow. Second operand 11 states and 825 transitions. [2021-11-22 14:29:56,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 976 transitions, 21475 flow [2021-11-22 14:29:57,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 415 places, 976 transitions, 20988 flow, removed 12 selfloop flow, removed 3 redundant places. [2021-11-22 14:29:57,203 INFO L242 Difference]: Finished difference. Result has 417 places, 903 transitions, 19451 flow [2021-11-22 14:29:57,204 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=18569, PETRI_DIFFERENCE_MINUEND_PLACES=405, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=901, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=413, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=487, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=19451, PETRI_PLACES=417, PETRI_TRANSITIONS=903} [2021-11-22 14:29:57,205 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 312 predicate places. [2021-11-22 14:29:57,205 INFO L470 AbstractCegarLoop]: Abstraction has has 417 places, 903 transitions, 19451 flow [2021-11-22 14:29:57,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:57,206 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 14:29:57,206 INFO L254 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] [2021-11-22 14:29:57,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-22 14:29:57,207 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-22 14:29:57,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:29:57,207 INFO L85 PathProgramCache]: Analyzing trace with hash -680757553, now seen corresponding path program 15 times [2021-11-22 14:29:57,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:29:57,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211591589] [2021-11-22 14:29:57,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:29:57,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:29:57,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:29:57,754 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-22 14:29:57,754 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:29:57,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211591589] [2021-11-22 14:29:57,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211591589] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:29:57,755 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:29:57,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-22 14:29:57,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137696843] [2021-11-22 14:29:57,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:29:57,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-22 14:29:57,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:29:57,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-22 14:29:57,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-22 14:29:57,757 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2021-11-22 14:29:57,758 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 903 transitions, 19451 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:57,759 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 14:29:57,759 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2021-11-22 14:29:57,759 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 14:30:01,188 INFO L129 PetriNetUnfolder]: 1901/5376 cut-off events. [2021-11-22 14:30:01,188 INFO L130 PetriNetUnfolder]: For 99156/99207 co-relation queries the response was YES. [2021-11-22 14:30:01,247 INFO L84 FinitePrefix]: Finished finitePrefix Result has 39063 conditions, 5376 events. 1901/5376 cut-off events. For 99156/99207 co-relation queries the response was YES. Maximal size of possible extension queue 213. Compared 47169 event pairs, 292 based on Foata normal form. 19/5343 useless extension candidates. Maximal degree in co-relation 38824. Up to 2753 conditions per place. [2021-11-22 14:30:01,265 INFO L132 encePairwiseOnDemand]: 86/106 looper letters, 452 selfloop transitions, 409 changer transitions 17/978 dead transitions. [2021-11-22 14:30:01,265 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 429 places, 978 transitions, 22041 flow [2021-11-22 14:30:01,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-22 14:30:01,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-11-22 14:30:01,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 944 transitions. [2021-11-22 14:30:01,266 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6850507982583455 [2021-11-22 14:30:01,267 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 944 transitions. [2021-11-22 14:30:01,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 944 transitions. [2021-11-22 14:30:01,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 14:30:01,267 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 944 transitions. [2021-11-22 14:30:01,268 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 72.61538461538461) internal successors, (944), 13 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:30:01,269 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:30:01,270 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:30:01,270 INFO L186 Difference]: Start difference. First operand has 417 places, 903 transitions, 19451 flow. Second operand 13 states and 944 transitions. [2021-11-22 14:30:01,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 429 places, 978 transitions, 22041 flow [2021-11-22 14:30:02,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 423 places, 978 transitions, 21281 flow, removed 3 selfloop flow, removed 6 redundant places. [2021-11-22 14:30:02,222 INFO L242 Difference]: Finished difference. Result has 427 places, 915 transitions, 19895 flow [2021-11-22 14:30:02,223 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=18705, PETRI_DIFFERENCE_MINUEND_PLACES=411, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=903, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=399, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=501, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=19895, PETRI_PLACES=427, PETRI_TRANSITIONS=915} [2021-11-22 14:30:02,223 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 322 predicate places. [2021-11-22 14:30:02,223 INFO L470 AbstractCegarLoop]: Abstraction has has 427 places, 915 transitions, 19895 flow [2021-11-22 14:30:02,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:30:02,224 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 14:30:02,224 INFO L254 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] [2021-11-22 14:30:02,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-22 14:30:02,224 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-22 14:30:02,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:30:02,224 INFO L85 PathProgramCache]: Analyzing trace with hash -435883879, now seen corresponding path program 16 times [2021-11-22 14:30:02,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:30:02,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103682703] [2021-11-22 14:30:02,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:30:02,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:30:02,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:30:02,808 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-22 14:30:02,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:30:02,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103682703] [2021-11-22 14:30:02,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103682703] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:30:02,808 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:30:02,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-22 14:30:02,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052717348] [2021-11-22 14:30:02,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:30:02,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-22 14:30:02,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:30:02,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-22 14:30:02,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-11-22 14:30:02,810 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2021-11-22 14:30:02,810 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 427 places, 915 transitions, 19895 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:30:02,810 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 14:30:02,810 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2021-11-22 14:30:02,810 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 14:30:06,195 INFO L129 PetriNetUnfolder]: 1908/5402 cut-off events. [2021-11-22 14:30:06,195 INFO L130 PetriNetUnfolder]: For 101531/101588 co-relation queries the response was YES. [2021-11-22 14:30:06,255 INFO L84 FinitePrefix]: Finished finitePrefix Result has 39284 conditions, 5402 events. 1908/5402 cut-off events. For 101531/101588 co-relation queries the response was YES. Maximal size of possible extension queue 215. Compared 47154 event pairs, 373 based on Foata normal form. 25/5360 useless extension candidates. Maximal degree in co-relation 39039. Up to 2742 conditions per place. [2021-11-22 14:30:06,272 INFO L132 encePairwiseOnDemand]: 86/106 looper letters, 474 selfloop transitions, 399 changer transitions 16/989 dead transitions. [2021-11-22 14:30:06,273 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 439 places, 989 transitions, 22539 flow [2021-11-22 14:30:06,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-22 14:30:06,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-11-22 14:30:06,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 936 transitions. [2021-11-22 14:30:06,274 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6792452830188679 [2021-11-22 14:30:06,274 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 936 transitions. [2021-11-22 14:30:06,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 936 transitions. [2021-11-22 14:30:06,275 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 14:30:06,275 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 936 transitions. [2021-11-22 14:30:06,276 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 72.0) internal successors, (936), 13 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:30:06,277 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:30:06,278 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:30:06,278 INFO L186 Difference]: Start difference. First operand has 427 places, 915 transitions, 19895 flow. Second operand 13 states and 936 transitions. [2021-11-22 14:30:06,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 439 places, 989 transitions, 22539 flow [2021-11-22 14:30:07,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 433 places, 989 transitions, 21831 flow, removed 42 selfloop flow, removed 6 redundant places. [2021-11-22 14:30:07,140 INFO L242 Difference]: Finished difference. Result has 437 places, 929 transitions, 20372 flow [2021-11-22 14:30:07,141 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=19200, PETRI_DIFFERENCE_MINUEND_PLACES=421, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=915, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=385, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=522, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=20372, PETRI_PLACES=437, PETRI_TRANSITIONS=929} [2021-11-22 14:30:07,141 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 332 predicate places. [2021-11-22 14:30:07,141 INFO L470 AbstractCegarLoop]: Abstraction has has 437 places, 929 transitions, 20372 flow [2021-11-22 14:30:07,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:30:07,142 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 14:30:07,142 INFO L254 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] [2021-11-22 14:30:07,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-22 14:30:07,142 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-22 14:30:07,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:30:07,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1929394253, now seen corresponding path program 17 times [2021-11-22 14:30:07,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:30:07,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374175497] [2021-11-22 14:30:07,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:30:07,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:30:07,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:30:07,917 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-22 14:30:07,917 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:30:07,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374175497] [2021-11-22 14:30:07,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374175497] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:30:07,917 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:30:07,917 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-11-22 14:30:07,917 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096845670] [2021-11-22 14:30:07,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:30:07,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-22 14:30:07,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:30:07,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-22 14:30:07,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2021-11-22 14:30:07,919 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 106 [2021-11-22 14:30:07,921 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 929 transitions, 20372 flow. Second operand has 19 states, 19 states have (on average 54.526315789473685) internal successors, (1036), 19 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:30:07,922 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 14:30:07,922 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 106 [2021-11-22 14:30:07,922 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 14:30:12,352 INFO L129 PetriNetUnfolder]: 2243/5922 cut-off events. [2021-11-22 14:30:12,352 INFO L130 PetriNetUnfolder]: For 116419/116464 co-relation queries the response was YES. [2021-11-22 14:30:12,432 INFO L84 FinitePrefix]: Finished finitePrefix Result has 42691 conditions, 5922 events. 2243/5922 cut-off events. For 116419/116464 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 50868 event pairs, 307 based on Foata normal form. 18/5886 useless extension candidates. Maximal degree in co-relation 42441. Up to 1611 conditions per place. [2021-11-22 14:30:12,453 INFO L132 encePairwiseOnDemand]: 77/106 looper letters, 551 selfloop transitions, 440 changer transitions 49/1121 dead transitions. [2021-11-22 14:30:12,453 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 462 places, 1121 transitions, 24437 flow [2021-11-22 14:30:12,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-22 14:30:12,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2021-11-22 14:30:12,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 1628 transitions. [2021-11-22 14:30:12,457 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.590711175616836 [2021-11-22 14:30:12,457 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 1628 transitions. [2021-11-22 14:30:12,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 1628 transitions. [2021-11-22 14:30:12,458 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 14:30:12,458 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 1628 transitions. [2021-11-22 14:30:12,461 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 62.61538461538461) internal successors, (1628), 26 states have internal predecessors, (1628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:30:12,464 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 106.0) internal successors, (2862), 27 states have internal predecessors, (2862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:30:12,465 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 106.0) internal successors, (2862), 27 states have internal predecessors, (2862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:30:12,465 INFO L186 Difference]: Start difference. First operand has 437 places, 929 transitions, 20372 flow. Second operand 26 states and 1628 transitions. [2021-11-22 14:30:12,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 462 places, 1121 transitions, 24437 flow [2021-11-22 14:30:13,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 457 places, 1121 transitions, 23684 flow, removed 20 selfloop flow, removed 5 redundant places. [2021-11-22 14:30:13,500 INFO L242 Difference]: Finished difference. Result has 460 places, 938 transitions, 20776 flow [2021-11-22 14:30:13,501 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=19626, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=929, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=431, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=495, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=20776, PETRI_PLACES=460, PETRI_TRANSITIONS=938} [2021-11-22 14:30:13,502 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 355 predicate places. [2021-11-22 14:30:13,502 INFO L470 AbstractCegarLoop]: Abstraction has has 460 places, 938 transitions, 20776 flow [2021-11-22 14:30:13,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 54.526315789473685) internal successors, (1036), 19 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:30:13,503 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 14:30:13,503 INFO L254 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] [2021-11-22 14:30:13,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-22 14:30:13,503 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-22 14:30:13,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:30:13,504 INFO L85 PathProgramCache]: Analyzing trace with hash 75973575, now seen corresponding path program 1 times [2021-11-22 14:30:13,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:30:13,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472943616] [2021-11-22 14:30:13,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:30:13,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:30:13,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:30:15,145 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-22 14:30:15,145 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:30:15,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472943616] [2021-11-22 14:30:15,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472943616] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:30:15,145 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:30:15,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-22 14:30:15,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229872741] [2021-11-22 14:30:15,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:30:15,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-22 14:30:15,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:30:15,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-22 14:30:15,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-22 14:30:15,147 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2021-11-22 14:30:15,147 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 460 places, 938 transitions, 20776 flow. Second operand has 10 states, 10 states have (on average 65.4) internal successors, (654), 10 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:30:15,147 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 14:30:15,148 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2021-11-22 14:30:15,148 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 14:30:18,637 INFO L129 PetriNetUnfolder]: 1912/5521 cut-off events. [2021-11-22 14:30:18,637 INFO L130 PetriNetUnfolder]: For 112179/112238 co-relation queries the response was YES. [2021-11-22 14:30:18,903 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40811 conditions, 5521 events. 1912/5521 cut-off events. For 112179/112238 co-relation queries the response was YES. Maximal size of possible extension queue 230. Compared 49138 event pairs, 257 based on Foata normal form. 24/5494 useless extension candidates. Maximal degree in co-relation 40556. Up to 2045 conditions per place. [2021-11-22 14:30:18,928 INFO L132 encePairwiseOnDemand]: 90/106 looper letters, 946 selfloop transitions, 146 changer transitions 22/1234 dead transitions. [2021-11-22 14:30:18,928 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 471 places, 1234 transitions, 26488 flow [2021-11-22 14:30:18,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-22 14:30:18,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-11-22 14:30:18,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 973 transitions. [2021-11-22 14:30:18,930 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.764937106918239 [2021-11-22 14:30:18,930 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 973 transitions. [2021-11-22 14:30:18,930 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 973 transitions. [2021-11-22 14:30:18,931 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 14:30:18,931 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 973 transitions. [2021-11-22 14:30:18,933 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 81.08333333333333) internal successors, (973), 12 states have internal predecessors, (973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:30:18,934 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:30:18,935 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:30:18,935 INFO L186 Difference]: Start difference. First operand has 460 places, 938 transitions, 20776 flow. Second operand 12 states and 973 transitions. [2021-11-22 14:30:18,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 471 places, 1234 transitions, 26488 flow [2021-11-22 14:30:19,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 1234 transitions, 25531 flow, removed 13 selfloop flow, removed 18 redundant places. [2021-11-22 14:30:19,921 INFO L242 Difference]: Finished difference. Result has 461 places, 1006 transitions, 21628 flow [2021-11-22 14:30:19,922 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=19938, PETRI_DIFFERENCE_MINUEND_PLACES=442, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=938, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=83, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=826, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=21628, PETRI_PLACES=461, PETRI_TRANSITIONS=1006} [2021-11-22 14:30:19,923 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 356 predicate places. [2021-11-22 14:30:19,923 INFO L470 AbstractCegarLoop]: Abstraction has has 461 places, 1006 transitions, 21628 flow [2021-11-22 14:30:19,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.4) internal successors, (654), 10 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:30:19,923 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 14:30:19,923 INFO L254 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] [2021-11-22 14:30:19,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-22 14:30:19,923 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-22 14:30:19,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:30:19,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1657790239, now seen corresponding path program 2 times [2021-11-22 14:30:19,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:30:19,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492143818] [2021-11-22 14:30:19,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:30:19,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:30:19,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:30:20,728 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-22 14:30:20,728 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:30:20,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492143818] [2021-11-22 14:30:20,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492143818] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:30:20,728 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:30:20,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-22 14:30:20,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906566969] [2021-11-22 14:30:20,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:30:20,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-22 14:30:20,730 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:30:20,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-22 14:30:20,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-22 14:30:20,731 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2021-11-22 14:30:20,732 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 461 places, 1006 transitions, 21628 flow. Second operand has 10 states, 10 states have (on average 65.4) internal successors, (654), 10 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:30:20,732 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 14:30:20,732 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2021-11-22 14:30:20,732 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 14:30:23,975 INFO L129 PetriNetUnfolder]: 1982/5700 cut-off events. [2021-11-22 14:30:23,976 INFO L130 PetriNetUnfolder]: For 117303/117393 co-relation queries the response was YES. [2021-11-22 14:30:24,037 INFO L84 FinitePrefix]: Finished finitePrefix Result has 42337 conditions, 5700 events. 1982/5700 cut-off events. For 117303/117393 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 51370 event pairs, 239 based on Foata normal form. 64/5715 useless extension candidates. Maximal degree in co-relation 42077. Up to 3136 conditions per place. [2021-11-22 14:30:24,059 INFO L132 encePairwiseOnDemand]: 90/106 looper letters, 870 selfloop transitions, 171 changer transitions 23/1184 dead transitions. [2021-11-22 14:30:24,059 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 469 places, 1184 transitions, 26762 flow [2021-11-22 14:30:24,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-22 14:30:24,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-11-22 14:30:24,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 788 transitions. [2021-11-22 14:30:24,060 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7433962264150943 [2021-11-22 14:30:24,060 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 788 transitions. [2021-11-22 14:30:24,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 788 transitions. [2021-11-22 14:30:24,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 14:30:24,061 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 788 transitions. [2021-11-22 14:30:24,062 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 78.8) internal successors, (788), 10 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:30:24,063 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:30:24,064 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:30:24,064 INFO L186 Difference]: Start difference. First operand has 461 places, 1006 transitions, 21628 flow. Second operand 10 states and 788 transitions. [2021-11-22 14:30:24,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 469 places, 1184 transitions, 26762 flow [2021-11-22 14:30:25,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 467 places, 1184 transitions, 26312 flow, removed 18 selfloop flow, removed 2 redundant places. [2021-11-22 14:30:25,204 INFO L242 Difference]: Finished difference. Result has 471 places, 1048 transitions, 23288 flow [2021-11-22 14:30:25,205 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=21241, PETRI_DIFFERENCE_MINUEND_PLACES=458, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1006, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=852, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=23288, PETRI_PLACES=471, PETRI_TRANSITIONS=1048} [2021-11-22 14:30:25,206 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 366 predicate places. [2021-11-22 14:30:25,206 INFO L470 AbstractCegarLoop]: Abstraction has has 471 places, 1048 transitions, 23288 flow [2021-11-22 14:30:25,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.4) internal successors, (654), 10 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:30:25,206 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 14:30:25,207 INFO L254 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] [2021-11-22 14:30:25,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-22 14:30:25,207 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-22 14:30:25,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:30:25,207 INFO L85 PathProgramCache]: Analyzing trace with hash 504538941, now seen corresponding path program 3 times [2021-11-22 14:30:25,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:30:25,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580249153] [2021-11-22 14:30:25,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:30:25,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:30:25,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:30:26,668 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-22 14:30:26,668 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:30:26,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580249153] [2021-11-22 14:30:26,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580249153] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:30:26,668 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:30:26,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-22 14:30:26,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686229875] [2021-11-22 14:30:26,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:30:26,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-22 14:30:26,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:30:26,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-22 14:30:26,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-11-22 14:30:26,670 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 106 [2021-11-22 14:30:26,671 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 471 places, 1048 transitions, 23288 flow. Second operand has 11 states, 11 states have (on average 61.54545454545455) internal successors, (677), 11 states have internal predecessors, (677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:30:26,671 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 14:30:26,671 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 106 [2021-11-22 14:30:26,671 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 14:30:31,259 INFO L129 PetriNetUnfolder]: 2332/6547 cut-off events. [2021-11-22 14:30:31,259 INFO L130 PetriNetUnfolder]: For 148645/148721 co-relation queries the response was YES. [2021-11-22 14:30:31,339 INFO L84 FinitePrefix]: Finished finitePrefix Result has 48379 conditions, 6547 events. 2332/6547 cut-off events. For 148645/148721 co-relation queries the response was YES. Maximal size of possible extension queue 268. Compared 59188 event pairs, 345 based on Foata normal form. 65/6600 useless extension candidates. Maximal degree in co-relation 48047. Up to 3409 conditions per place. [2021-11-22 14:30:31,364 INFO L132 encePairwiseOnDemand]: 89/106 looper letters, 946 selfloop transitions, 242 changer transitions 8/1312 dead transitions. [2021-11-22 14:30:31,364 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 484 places, 1312 transitions, 29636 flow [2021-11-22 14:30:31,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-22 14:30:31,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-11-22 14:30:31,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1095 transitions. [2021-11-22 14:30:31,366 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6886792452830188 [2021-11-22 14:30:31,366 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1095 transitions. [2021-11-22 14:30:31,366 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1095 transitions. [2021-11-22 14:30:31,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 14:30:31,368 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1095 transitions. [2021-11-22 14:30:31,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 73.0) internal successors, (1095), 15 states have internal predecessors, (1095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:30:31,372 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:30:31,373 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:30:31,373 INFO L186 Difference]: Start difference. First operand has 471 places, 1048 transitions, 23288 flow. Second operand 15 states and 1095 transitions. [2021-11-22 14:30:31,373 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 484 places, 1312 transitions, 29636 flow [2021-11-22 14:30:32,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 479 places, 1312 transitions, 29211 flow, removed 14 selfloop flow, removed 5 redundant places. [2021-11-22 14:30:32,866 INFO L242 Difference]: Finished difference. Result has 492 places, 1135 transitions, 26176 flow [2021-11-22 14:30:32,867 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=22935, PETRI_DIFFERENCE_MINUEND_PLACES=465, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1048, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=157, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=839, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=26176, PETRI_PLACES=492, PETRI_TRANSITIONS=1135} [2021-11-22 14:30:32,868 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 387 predicate places. [2021-11-22 14:30:32,868 INFO L470 AbstractCegarLoop]: Abstraction has has 492 places, 1135 transitions, 26176 flow [2021-11-22 14:30:32,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 61.54545454545455) internal successors, (677), 11 states have internal predecessors, (677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:30:32,869 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 14:30:32,869 INFO L254 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] [2021-11-22 14:30:32,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-22 14:30:32,869 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-22 14:30:32,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:30:32,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1326799909, now seen corresponding path program 4 times [2021-11-22 14:30:32,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:30:32,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688633137] [2021-11-22 14:30:32,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:30:32,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:30:32,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:30:34,003 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-22 14:30:34,003 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:30:34,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688633137] [2021-11-22 14:30:34,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688633137] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:30:34,003 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:30:34,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-22 14:30:34,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781806152] [2021-11-22 14:30:34,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:30:34,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-22 14:30:34,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:30:34,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-22 14:30:34,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-22 14:30:34,005 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2021-11-22 14:30:34,005 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 492 places, 1135 transitions, 26176 flow. Second operand has 10 states, 10 states have (on average 65.4) internal successors, (654), 10 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:30:34,005 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 14:30:34,005 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2021-11-22 14:30:34,006 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 14:30:38,792 INFO L129 PetriNetUnfolder]: 2371/6769 cut-off events. [2021-11-22 14:30:38,792 INFO L130 PetriNetUnfolder]: For 178567/178755 co-relation queries the response was YES. [2021-11-22 14:30:38,898 INFO L84 FinitePrefix]: Finished finitePrefix Result has 51477 conditions, 6769 events. 2371/6769 cut-off events. For 178567/178755 co-relation queries the response was YES. Maximal size of possible extension queue 317. Compared 63117 event pairs, 300 based on Foata normal form. 146/6858 useless extension candidates. Maximal degree in co-relation 51195. Up to 3425 conditions per place. [2021-11-22 14:30:38,928 INFO L132 encePairwiseOnDemand]: 90/106 looper letters, 972 selfloop transitions, 300 changer transitions 14/1410 dead transitions. [2021-11-22 14:30:38,928 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 506 places, 1410 transitions, 34031 flow [2021-11-22 14:30:38,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-22 14:30:38,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-11-22 14:30:38,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1152 transitions. [2021-11-22 14:30:38,930 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7245283018867924 [2021-11-22 14:30:38,931 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1152 transitions. [2021-11-22 14:30:38,931 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1152 transitions. [2021-11-22 14:30:38,931 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 14:30:38,931 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1152 transitions. [2021-11-22 14:30:38,932 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 76.8) internal successors, (1152), 15 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:30:38,934 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:30:38,934 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:30:38,934 INFO L186 Difference]: Start difference. First operand has 492 places, 1135 transitions, 26176 flow. Second operand 15 states and 1152 transitions. [2021-11-22 14:30:38,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 506 places, 1410 transitions, 34031 flow [2021-11-22 14:30:40,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 504 places, 1410 transitions, 33780 flow, removed 103 selfloop flow, removed 2 redundant places. [2021-11-22 14:30:40,532 INFO L242 Difference]: Finished difference. Result has 508 places, 1226 transitions, 30040 flow [2021-11-22 14:30:40,533 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=26015, PETRI_DIFFERENCE_MINUEND_PLACES=490, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=224, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=895, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=30040, PETRI_PLACES=508, PETRI_TRANSITIONS=1226} [2021-11-22 14:30:40,534 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 403 predicate places. [2021-11-22 14:30:40,534 INFO L470 AbstractCegarLoop]: Abstraction has has 508 places, 1226 transitions, 30040 flow [2021-11-22 14:30:40,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.4) internal successors, (654), 10 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:30:40,534 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 14:30:40,534 INFO L254 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] [2021-11-22 14:30:40,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-22 14:30:40,534 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-22 14:30:40,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:30:40,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1432364191, now seen corresponding path program 5 times [2021-11-22 14:30:40,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:30:40,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392648494] [2021-11-22 14:30:40,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:30:40,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:30:40,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:30:42,194 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-22 14:30:42,194 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:30:42,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392648494] [2021-11-22 14:30:42,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392648494] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:30:42,195 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:30:42,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-22 14:30:42,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729923319] [2021-11-22 14:30:42,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:30:42,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-22 14:30:42,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:30:42,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-22 14:30:42,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-11-22 14:30:42,196 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 106 [2021-11-22 14:30:42,197 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 508 places, 1226 transitions, 30040 flow. Second operand has 12 states, 12 states have (on average 61.333333333333336) internal successors, (736), 12 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:30:42,197 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 14:30:42,197 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 106 [2021-11-22 14:30:42,197 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 14:30:47,813 INFO L129 PetriNetUnfolder]: 2747/7670 cut-off events. [2021-11-22 14:30:47,813 INFO L130 PetriNetUnfolder]: For 214585/214703 co-relation queries the response was YES. [2021-11-22 14:30:47,937 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58700 conditions, 7670 events. 2747/7670 cut-off events. For 214585/214703 co-relation queries the response was YES. Maximal size of possible extension queue 345. Compared 71850 event pairs, 352 based on Foata normal form. 96/7751 useless extension candidates. Maximal degree in co-relation 58353. Up to 3944 conditions per place. [2021-11-22 14:30:47,968 INFO L132 encePairwiseOnDemand]: 89/106 looper letters, 992 selfloop transitions, 328 changer transitions 9/1445 dead transitions. [2021-11-22 14:30:47,969 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 521 places, 1445 transitions, 35890 flow [2021-11-22 14:30:47,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-22 14:30:47,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-11-22 14:30:47,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1026 transitions. [2021-11-22 14:30:47,971 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6913746630727763 [2021-11-22 14:30:47,971 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1026 transitions. [2021-11-22 14:30:47,971 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1026 transitions. [2021-11-22 14:30:47,972 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 14:30:47,972 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1026 transitions. [2021-11-22 14:30:47,973 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 73.28571428571429) internal successors, (1026), 14 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:30:47,975 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:30:47,976 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:30:47,976 INFO L186 Difference]: Start difference. First operand has 508 places, 1226 transitions, 30040 flow. Second operand 14 states and 1026 transitions. [2021-11-22 14:30:47,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 521 places, 1445 transitions, 35890 flow [2021-11-22 14:30:49,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 518 places, 1445 transitions, 35697 flow, removed 59 selfloop flow, removed 3 redundant places. [2021-11-22 14:30:49,907 INFO L242 Difference]: Finished difference. Result has 528 places, 1288 transitions, 32801 flow [2021-11-22 14:30:49,908 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=29876, PETRI_DIFFERENCE_MINUEND_PLACES=505, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=269, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=921, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=32801, PETRI_PLACES=528, PETRI_TRANSITIONS=1288} [2021-11-22 14:30:49,909 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 423 predicate places. [2021-11-22 14:30:49,909 INFO L470 AbstractCegarLoop]: Abstraction has has 528 places, 1288 transitions, 32801 flow [2021-11-22 14:30:49,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 61.333333333333336) internal successors, (736), 12 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:30:49,909 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 14:30:49,909 INFO L254 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] [2021-11-22 14:30:49,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-11-22 14:30:49,909 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-22 14:30:49,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:30:49,910 INFO L85 PathProgramCache]: Analyzing trace with hash -730448777, now seen corresponding path program 6 times [2021-11-22 14:30:49,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:30:49,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984898233] [2021-11-22 14:30:49,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:30:49,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:30:49,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:30:50,985 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-22 14:30:50,985 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:30:50,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984898233] [2021-11-22 14:30:50,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984898233] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:30:50,985 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:30:50,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-22 14:30:50,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895480379] [2021-11-22 14:30:50,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:30:50,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-22 14:30:50,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:30:50,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-22 14:30:50,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-22 14:30:50,988 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2021-11-22 14:30:50,989 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 528 places, 1288 transitions, 32801 flow. Second operand has 10 states, 10 states have (on average 65.4) internal successors, (654), 10 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:30:50,989 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 14:30:50,989 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2021-11-22 14:30:50,989 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 14:30:56,242 INFO L129 PetriNetUnfolder]: 2668/7568 cut-off events. [2021-11-22 14:30:56,243 INFO L130 PetriNetUnfolder]: For 243758/244047 co-relation queries the response was YES. [2021-11-22 14:30:56,376 INFO L84 FinitePrefix]: Finished finitePrefix Result has 59990 conditions, 7568 events. 2668/7568 cut-off events. For 243758/244047 co-relation queries the response was YES. Maximal size of possible extension queue 371. Compared 72020 event pairs, 339 based on Foata normal form. 207/7718 useless extension candidates. Maximal degree in co-relation 59695. Up to 3592 conditions per place. [2021-11-22 14:30:56,414 INFO L132 encePairwiseOnDemand]: 90/106 looper letters, 998 selfloop transitions, 368 changer transitions 14/1509 dead transitions. [2021-11-22 14:30:56,414 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 538 places, 1509 transitions, 39720 flow [2021-11-22 14:30:56,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-22 14:30:56,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-22 14:30:56,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 868 transitions. [2021-11-22 14:30:56,416 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7444253859348199 [2021-11-22 14:30:56,416 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 868 transitions. [2021-11-22 14:30:56,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 868 transitions. [2021-11-22 14:30:56,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 14:30:56,417 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 868 transitions. [2021-11-22 14:30:56,418 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 78.9090909090909) internal successors, (868), 11 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:30:56,419 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:30:56,419 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:30:56,419 INFO L186 Difference]: Start difference. First operand has 528 places, 1288 transitions, 32801 flow. Second operand 11 states and 868 transitions. [2021-11-22 14:30:56,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 538 places, 1509 transitions, 39720 flow [2021-11-22 14:30:58,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 537 places, 1509 transitions, 39587 flow, removed 54 selfloop flow, removed 1 redundant places. [2021-11-22 14:30:58,492 INFO L242 Difference]: Finished difference. Result has 545 places, 1354 transitions, 36614 flow [2021-11-22 14:30:58,493 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=32687, PETRI_DIFFERENCE_MINUEND_PLACES=527, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=302, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=941, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=36614, PETRI_PLACES=545, PETRI_TRANSITIONS=1354} [2021-11-22 14:30:58,493 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 440 predicate places. [2021-11-22 14:30:58,493 INFO L470 AbstractCegarLoop]: Abstraction has has 545 places, 1354 transitions, 36614 flow [2021-11-22 14:30:58,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.4) internal successors, (654), 10 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:30:58,494 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 14:30:58,494 INFO L254 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] [2021-11-22 14:30:58,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-22 14:30:58,494 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-22 14:30:58,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:30:58,495 INFO L85 PathProgramCache]: Analyzing trace with hash -396929893, now seen corresponding path program 7 times [2021-11-22 14:30:58,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:30:58,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008191172] [2021-11-22 14:30:58,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:30:58,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:30:58,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:30:59,424 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-22 14:30:59,424 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:30:59,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008191172] [2021-11-22 14:30:59,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008191172] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:30:59,425 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:30:59,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-22 14:30:59,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395783984] [2021-11-22 14:30:59,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:30:59,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-22 14:30:59,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:30:59,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-22 14:30:59,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-22 14:30:59,427 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2021-11-22 14:30:59,427 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 545 places, 1354 transitions, 36614 flow. Second operand has 10 states, 10 states have (on average 65.4) internal successors, (654), 10 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:30:59,428 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 14:30:59,428 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2021-11-22 14:30:59,428 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 14:31:04,871 INFO L129 PetriNetUnfolder]: 2653/7539 cut-off events. [2021-11-22 14:31:04,871 INFO L130 PetriNetUnfolder]: For 271763/272046 co-relation queries the response was YES. [2021-11-22 14:31:04,982 INFO L84 FinitePrefix]: Finished finitePrefix Result has 61538 conditions, 7539 events. 2653/7539 cut-off events. For 271763/272046 co-relation queries the response was YES. Maximal size of possible extension queue 366. Compared 71825 event pairs, 318 based on Foata normal form. 216/7697 useless extension candidates. Maximal degree in co-relation 61235. Up to 3759 conditions per place. [2021-11-22 14:31:05,014 INFO L132 encePairwiseOnDemand]: 90/106 looper letters, 1000 selfloop transitions, 355 changer transitions 14/1498 dead transitions. [2021-11-22 14:31:05,015 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 555 places, 1498 transitions, 40992 flow [2021-11-22 14:31:05,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-22 14:31:05,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-22 14:31:05,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 863 transitions. [2021-11-22 14:31:05,016 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7401372212692967 [2021-11-22 14:31:05,016 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 863 transitions. [2021-11-22 14:31:05,016 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 863 transitions. [2021-11-22 14:31:05,017 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 14:31:05,018 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 863 transitions. [2021-11-22 14:31:05,019 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 78.45454545454545) internal successors, (863), 11 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:31:05,020 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:31:05,021 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:31:05,021 INFO L186 Difference]: Start difference. First operand has 545 places, 1354 transitions, 36614 flow. Second operand 11 states and 863 transitions. [2021-11-22 14:31:05,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 555 places, 1498 transitions, 40992 flow [2021-11-22 14:31:07,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 553 places, 1498 transitions, 40494 flow, removed 78 selfloop flow, removed 2 redundant places. [2021-11-22 14:31:07,402 INFO L242 Difference]: Finished difference. Result has 556 places, 1354 transitions, 36972 flow [2021-11-22 14:31:07,404 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=36136, PETRI_DIFFERENCE_MINUEND_PLACES=543, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1354, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=353, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1000, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=36972, PETRI_PLACES=556, PETRI_TRANSITIONS=1354} [2021-11-22 14:31:07,404 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 451 predicate places. [2021-11-22 14:31:07,405 INFO L470 AbstractCegarLoop]: Abstraction has has 556 places, 1354 transitions, 36972 flow [2021-11-22 14:31:07,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.4) internal successors, (654), 10 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:31:07,405 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 14:31:07,405 INFO L254 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] [2021-11-22 14:31:07,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-11-22 14:31:07,406 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-22 14:31:07,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:31:07,406 INFO L85 PathProgramCache]: Analyzing trace with hash -405296499, now seen corresponding path program 8 times [2021-11-22 14:31:07,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:31:07,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347937655] [2021-11-22 14:31:07,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:31:07,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:31:07,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:31:08,721 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-22 14:31:08,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:31:08,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347937655] [2021-11-22 14:31:08,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347937655] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:31:08,721 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:31:08,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-22 14:31:08,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663522097] [2021-11-22 14:31:08,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:31:08,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-22 14:31:08,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:31:08,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-22 14:31:08,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-11-22 14:31:08,723 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 106 [2021-11-22 14:31:08,724 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 556 places, 1354 transitions, 36972 flow. Second operand has 12 states, 12 states have (on average 61.333333333333336) internal successors, (736), 12 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:31:08,724 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 14:31:08,724 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 106 [2021-11-22 14:31:08,724 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 14:31:15,326 INFO L129 PetriNetUnfolder]: 2951/8186 cut-off events. [2021-11-22 14:31:15,326 INFO L130 PetriNetUnfolder]: For 301577/301799 co-relation queries the response was YES. [2021-11-22 14:31:15,450 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67660 conditions, 8186 events. 2951/8186 cut-off events. For 301577/301799 co-relation queries the response was YES. Maximal size of possible extension queue 383. Compared 77699 event pairs, 360 based on Foata normal form. 220/8393 useless extension candidates. Maximal degree in co-relation 67293. Up to 4223 conditions per place. [2021-11-22 14:31:15,485 INFO L132 encePairwiseOnDemand]: 89/106 looper letters, 1041 selfloop transitions, 384 changer transitions 13/1554 dead transitions. [2021-11-22 14:31:15,486 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 568 places, 1554 transitions, 43096 flow [2021-11-22 14:31:15,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-22 14:31:15,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-11-22 14:31:15,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 963 transitions. [2021-11-22 14:31:15,488 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6988388969521045 [2021-11-22 14:31:15,488 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 963 transitions. [2021-11-22 14:31:15,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 963 transitions. [2021-11-22 14:31:15,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 14:31:15,489 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 963 transitions. [2021-11-22 14:31:15,490 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 74.07692307692308) internal successors, (963), 13 states have internal predecessors, (963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:31:15,491 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:31:15,491 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:31:15,491 INFO L186 Difference]: Start difference. First operand has 556 places, 1354 transitions, 36972 flow. Second operand 13 states and 963 transitions. [2021-11-22 14:31:15,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 568 places, 1554 transitions, 43096 flow [2021-11-22 14:31:17,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 562 places, 1554 transitions, 42364 flow, removed 2 selfloop flow, removed 6 redundant places. [2021-11-22 14:31:18,028 INFO L242 Difference]: Finished difference. Result has 571 places, 1405 transitions, 39527 flow [2021-11-22 14:31:18,030 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=36299, PETRI_DIFFERENCE_MINUEND_PLACES=550, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1354, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=335, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=990, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=39527, PETRI_PLACES=571, PETRI_TRANSITIONS=1405} [2021-11-22 14:31:18,030 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 466 predicate places. [2021-11-22 14:31:18,030 INFO L470 AbstractCegarLoop]: Abstraction has has 571 places, 1405 transitions, 39527 flow [2021-11-22 14:31:18,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 61.333333333333336) internal successors, (736), 12 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:31:18,031 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 14:31:18,031 INFO L254 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] [2021-11-22 14:31:18,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-11-22 14:31:18,032 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-22 14:31:18,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:31:18,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1653105629, now seen corresponding path program 9 times [2021-11-22 14:31:18,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:31:18,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699717171] [2021-11-22 14:31:18,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:31:18,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:31:18,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:31:19,111 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-22 14:31:19,111 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:31:19,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699717171] [2021-11-22 14:31:19,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699717171] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:31:19,112 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:31:19,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-22 14:31:19,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637588717] [2021-11-22 14:31:19,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:31:19,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-22 14:31:19,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:31:19,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-22 14:31:19,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-22 14:31:19,114 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2021-11-22 14:31:19,115 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 571 places, 1405 transitions, 39527 flow. Second operand has 10 states, 10 states have (on average 65.4) internal successors, (654), 10 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:31:19,115 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 14:31:19,115 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2021-11-22 14:31:19,115 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand