./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09d5eb54-da7c-4b3f-ab95-7f82e12fb716/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09d5eb54-da7c-4b3f-ab95-7f82e12fb716/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09d5eb54-da7c-4b3f-ab95-7f82e12fb716/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09d5eb54-da7c-4b3f-ab95-7f82e12fb716/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09d5eb54-da7c-4b3f-ab95-7f82e12fb716/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09d5eb54-da7c-4b3f-ab95-7f82e12fb716/bin/uautomizer-ug76WZFUDN --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 23d465ba9caf460ed15aca3aec6b262b1ee2c4f0003cc0e5fbc446c20cfe164a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 12:39:04,910 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:39:04,913 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:39:04,966 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:39:04,967 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:39:04,972 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:39:04,975 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:39:04,980 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:39:04,982 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:39:04,989 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:39:04,991 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:39:04,994 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:39:04,995 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:39:04,998 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:39:05,001 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:39:05,006 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:39:05,008 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:39:05,010 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:39:05,012 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:39:05,020 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:39:05,023 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:39:05,026 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:39:05,028 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:39:05,029 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:39:05,041 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:39:05,043 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:39:05,043 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:39:05,046 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:39:05,047 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:39:05,048 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:39:05,048 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:39:05,050 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:39:05,053 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:39:05,055 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:39:05,058 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:39:05,058 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:39:05,059 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:39:05,060 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:39:05,060 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:39:05,062 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:39:05,063 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:39:05,064 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09d5eb54-da7c-4b3f-ab95-7f82e12fb716/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 12:39:05,116 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:39:05,116 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:39:05,117 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:39:05,117 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:39:05,118 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:39:05,119 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:39:05,120 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:39:05,120 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:39:05,120 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:39:05,121 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:39:05,122 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:39:05,122 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:39:05,123 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:39:05,123 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:39:05,123 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:39:05,124 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:39:05,124 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:39:05,124 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:39:05,124 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 12:39:05,125 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:39:05,125 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:39:05,125 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:39:05,126 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:39:05,126 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:39:05,126 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:39:05,126 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:39:05,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:39:05,127 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:39:05,128 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:39:05,128 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:39:05,129 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:39:05,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:39:05,129 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:39:05,130 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:39:05,130 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:39:05,130 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_09d5eb54-da7c-4b3f-ab95-7f82e12fb716/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09d5eb54-da7c-4b3f-ab95-7f82e12fb716/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23d465ba9caf460ed15aca3aec6b262b1ee2c4f0003cc0e5fbc446c20cfe164a [2022-11-20 12:39:05,526 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:39:05,560 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:39:05,563 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:39:05,565 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:39:05,565 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:39:05,567 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09d5eb54-da7c-4b3f-ab95-7f82e12fb716/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i [2022-11-20 12:39:09,204 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:39:09,571 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:39:09,572 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09d5eb54-da7c-4b3f-ab95-7f82e12fb716/sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i [2022-11-20 12:39:09,590 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09d5eb54-da7c-4b3f-ab95-7f82e12fb716/bin/uautomizer-ug76WZFUDN/data/2cb641373/1bdc129ffee74a099ad665e30afc0ab7/FLAG134ee88e5 [2022-11-20 12:39:09,608 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09d5eb54-da7c-4b3f-ab95-7f82e12fb716/bin/uautomizer-ug76WZFUDN/data/2cb641373/1bdc129ffee74a099ad665e30afc0ab7 [2022-11-20 12:39:09,611 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:39:09,613 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:39:09,614 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:39:09,615 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:39:09,622 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:39:09,623 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:39:09" (1/1) ... [2022-11-20 12:39:09,624 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f2e58e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:39:09, skipping insertion in model container [2022-11-20 12:39:09,624 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:39:09" (1/1) ... [2022-11-20 12:39:09,633 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:39:09,696 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:39:10,466 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:39:10,476 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:39:10,539 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:39:10,649 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:39:10,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:39:10 WrapperNode [2022-11-20 12:39:10,650 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:39:10,652 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:39:10,652 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:39:10,652 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:39:10,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:39:10" (1/1) ... [2022-11-20 12:39:10,690 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:39:10" (1/1) ... [2022-11-20 12:39:10,730 INFO L138 Inliner]: procedures = 365, calls = 15, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 93 [2022-11-20 12:39:10,731 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:39:10,732 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:39:10,732 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:39:10,732 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:39:10,744 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:39:10" (1/1) ... [2022-11-20 12:39:10,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:39:10" (1/1) ... [2022-11-20 12:39:10,750 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:39:10" (1/1) ... [2022-11-20 12:39:10,750 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:39:10" (1/1) ... [2022-11-20 12:39:10,762 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:39:10" (1/1) ... [2022-11-20 12:39:10,764 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:39:10" (1/1) ... [2022-11-20 12:39:10,766 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:39:10" (1/1) ... [2022-11-20 12:39:10,767 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:39:10" (1/1) ... [2022-11-20 12:39:10,771 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:39:10,772 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:39:10,772 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:39:10,772 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:39:10,773 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:39:10" (1/1) ... [2022-11-20 12:39:10,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:39:10,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09d5eb54-da7c-4b3f-ab95-7f82e12fb716/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:39:10,818 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09d5eb54-da7c-4b3f-ab95-7f82e12fb716/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:39:10,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09d5eb54-da7c-4b3f-ab95-7f82e12fb716/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:39:10,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:39:10,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:39:10,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 12:39:10,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 12:39:10,874 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 12:39:10,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 12:39:10,874 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-20 12:39:10,874 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-20 12:39:10,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:39:10,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:39:10,877 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 12:39:11,047 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:39:11,050 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:39:11,443 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:39:11,453 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:39:11,454 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 12:39:11,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:39:11 BoogieIcfgContainer [2022-11-20 12:39:11,456 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:39:11,459 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:39:11,459 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:39:11,463 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:39:11,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:39:09" (1/3) ... [2022-11-20 12:39:11,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24851aab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:39:11, skipping insertion in model container [2022-11-20 12:39:11,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:39:10" (2/3) ... [2022-11-20 12:39:11,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24851aab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:39:11, skipping insertion in model container [2022-11-20 12:39:11,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:39:11" (3/3) ... [2022-11-20 12:39:11,467 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_15-list_entry_nr.i [2022-11-20 12:39:11,479 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 12:39:11,492 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:39:11,493 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2022-11-20 12:39:11,493 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 12:39:11,576 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 12:39:11,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 119 places, 115 transitions, 235 flow [2022-11-20 12:39:11,689 INFO L130 PetriNetUnfolder]: 0/114 cut-off events. [2022-11-20 12:39:11,690 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:39:11,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 114 events. 0/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 82 event pairs, 0 based on Foata normal form. 0/105 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-20 12:39:11,694 INFO L82 GeneralOperation]: Start removeDead. Operand has 119 places, 115 transitions, 235 flow [2022-11-20 12:39:11,700 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 118 places, 114 transitions, 231 flow [2022-11-20 12:39:11,713 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:39:11,721 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@56c65656, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:39:11,721 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-11-20 12:39:11,728 INFO L130 PetriNetUnfolder]: 0/14 cut-off events. [2022-11-20 12:39:11,728 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:39:11,728 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:39:11,729 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:39:11,730 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-20 12:39:11,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:39:11,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1485637970, now seen corresponding path program 1 times [2022-11-20 12:39:11,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:39:11,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51087212] [2022-11-20 12:39:11,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:39:11,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:39:11,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:39:12,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:39:12,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:39:12,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51087212] [2022-11-20 12:39:12,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51087212] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:39:12,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:39:12,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:39:12,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730367035] [2022-11-20 12:39:12,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:39:12,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:39:12,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:39:12,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:39:12,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:39:12,186 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 115 [2022-11-20 12:39:12,190 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 114 transitions, 231 flow. Second operand has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:12,190 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:39:12,190 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 115 [2022-11-20 12:39:12,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:39:12,310 INFO L130 PetriNetUnfolder]: 9/263 cut-off events. [2022-11-20 12:39:12,311 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 12:39:12,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 301 conditions, 263 events. 9/263 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 935 event pairs, 9 based on Foata normal form. 0/240 useless extension candidates. Maximal degree in co-relation 247. Up to 32 conditions per place. [2022-11-20 12:39:12,316 INFO L137 encePairwiseOnDemand]: 112/115 looper letters, 13 selfloop transitions, 2 changer transitions 0/113 dead transitions. [2022-11-20 12:39:12,316 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 113 transitions, 259 flow [2022-11-20 12:39:12,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:39:12,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:39:12,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 313 transitions. [2022-11-20 12:39:12,339 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9072463768115943 [2022-11-20 12:39:12,340 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 313 transitions. [2022-11-20 12:39:12,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 313 transitions. [2022-11-20 12:39:12,343 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:39:12,345 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 313 transitions. [2022-11-20 12:39:12,349 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:12,356 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:12,357 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:12,359 INFO L175 Difference]: Start difference. First operand has 118 places, 114 transitions, 231 flow. Second operand 3 states and 313 transitions. [2022-11-20 12:39:12,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 113 transitions, 259 flow [2022-11-20 12:39:12,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 113 transitions, 258 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 12:39:12,369 INFO L231 Difference]: Finished difference. Result has 118 places, 113 transitions, 232 flow [2022-11-20 12:39:12,372 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=232, PETRI_PLACES=118, PETRI_TRANSITIONS=113} [2022-11-20 12:39:12,376 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 0 predicate places. [2022-11-20 12:39:12,377 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 113 transitions, 232 flow [2022-11-20 12:39:12,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:12,378 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:39:12,378 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:39:12,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:39:12,379 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-20 12:39:12,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:39:12,380 INFO L85 PathProgramCache]: Analyzing trace with hash -842156130, now seen corresponding path program 1 times [2022-11-20 12:39:12,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:39:12,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711034498] [2022-11-20 12:39:12,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:39:12,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:39:12,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:39:12,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:39:12,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:39:12,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711034498] [2022-11-20 12:39:12,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711034498] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:39:12,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:39:12,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:39:12,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833245818] [2022-11-20 12:39:12,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:39:12,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:39:12,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:39:12,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:39:12,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:39:12,470 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 115 [2022-11-20 12:39:12,470 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 113 transitions, 232 flow. Second operand has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:12,471 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:39:12,471 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 115 [2022-11-20 12:39:12,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:39:12,543 INFO L130 PetriNetUnfolder]: 4/216 cut-off events. [2022-11-20 12:39:12,543 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 12:39:12,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 240 conditions, 216 events. 4/216 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 632 event pairs, 4 based on Foata normal form. 0/204 useless extension candidates. Maximal degree in co-relation 216. Up to 15 conditions per place. [2022-11-20 12:39:12,546 INFO L137 encePairwiseOnDemand]: 111/115 looper letters, 8 selfloop transitions, 1 changer transitions 0/110 dead transitions. [2022-11-20 12:39:12,546 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 110 transitions, 244 flow [2022-11-20 12:39:12,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:39:12,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:39:12,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 318 transitions. [2022-11-20 12:39:12,550 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9217391304347826 [2022-11-20 12:39:12,550 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 318 transitions. [2022-11-20 12:39:12,551 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 318 transitions. [2022-11-20 12:39:12,551 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:39:12,552 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 318 transitions. [2022-11-20 12:39:12,553 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:12,555 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:12,556 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:12,556 INFO L175 Difference]: Start difference. First operand has 118 places, 113 transitions, 232 flow. Second operand 3 states and 318 transitions. [2022-11-20 12:39:12,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 110 transitions, 244 flow [2022-11-20 12:39:12,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 110 transitions, 240 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:39:12,560 INFO L231 Difference]: Finished difference. Result has 115 places, 110 transitions, 224 flow [2022-11-20 12:39:12,561 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=115, PETRI_TRANSITIONS=110} [2022-11-20 12:39:12,562 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, -3 predicate places. [2022-11-20 12:39:12,562 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 110 transitions, 224 flow [2022-11-20 12:39:12,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:12,563 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:39:12,563 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:39:12,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:39:12,564 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-20 12:39:12,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:39:12,565 INFO L85 PathProgramCache]: Analyzing trace with hash 838099336, now seen corresponding path program 1 times [2022-11-20 12:39:12,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:39:12,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96125045] [2022-11-20 12:39:12,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:39:12,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:39:12,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:39:13,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:39:13,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:39:13,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96125045] [2022-11-20 12:39:13,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96125045] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:39:13,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:39:13,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:39:13,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976298844] [2022-11-20 12:39:13,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:39:13,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:39:13,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:39:13,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:39:13,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:39:13,247 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 115 [2022-11-20 12:39:13,248 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 110 transitions, 224 flow. Second operand has 6 states, 6 states have (on average 79.5) internal successors, (477), 6 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:13,248 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:39:13,248 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 115 [2022-11-20 12:39:13,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:39:13,527 INFO L130 PetriNetUnfolder]: 144/622 cut-off events. [2022-11-20 12:39:13,528 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:39:13,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 952 conditions, 622 events. 144/622 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3251 event pairs, 144 based on Foata normal form. 0/564 useless extension candidates. Maximal degree in co-relation 930. Up to 320 conditions per place. [2022-11-20 12:39:13,534 INFO L137 encePairwiseOnDemand]: 109/115 looper letters, 31 selfloop transitions, 5 changer transitions 0/109 dead transitions. [2022-11-20 12:39:13,534 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 109 transitions, 294 flow [2022-11-20 12:39:13,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:39:13,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:39:13,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 505 transitions. [2022-11-20 12:39:13,538 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7318840579710145 [2022-11-20 12:39:13,538 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 505 transitions. [2022-11-20 12:39:13,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 505 transitions. [2022-11-20 12:39:13,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:39:13,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 505 transitions. [2022-11-20 12:39:13,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 84.16666666666667) internal successors, (505), 6 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:13,545 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:13,546 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:13,546 INFO L175 Difference]: Start difference. First operand has 115 places, 110 transitions, 224 flow. Second operand 6 states and 505 transitions. [2022-11-20 12:39:13,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 109 transitions, 294 flow [2022-11-20 12:39:13,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 109 transitions, 293 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 12:39:13,550 INFO L231 Difference]: Finished difference. Result has 118 places, 109 transitions, 231 flow [2022-11-20 12:39:13,551 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=231, PETRI_PLACES=118, PETRI_TRANSITIONS=109} [2022-11-20 12:39:13,552 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 0 predicate places. [2022-11-20 12:39:13,552 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 109 transitions, 231 flow [2022-11-20 12:39:13,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.5) internal successors, (477), 6 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:13,553 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:39:13,553 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:39:13,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 12:39:13,554 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-20 12:39:13,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:39:13,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1006176948, now seen corresponding path program 1 times [2022-11-20 12:39:13,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:39:13,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536460045] [2022-11-20 12:39:13,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:39:13,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:39:13,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:39:14,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:39:14,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:39:14,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536460045] [2022-11-20 12:39:14,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536460045] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:39:14,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:39:14,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:39:14,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108389861] [2022-11-20 12:39:14,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:39:14,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:39:14,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:39:14,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:39:14,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:39:14,167 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 115 [2022-11-20 12:39:14,168 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 109 transitions, 231 flow. Second operand has 6 states, 6 states have (on average 80.5) internal successors, (483), 6 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:14,168 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:39:14,169 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 115 [2022-11-20 12:39:14,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:39:14,622 INFO L130 PetriNetUnfolder]: 239/878 cut-off events. [2022-11-20 12:39:14,623 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 12:39:14,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1409 conditions, 878 events. 239/878 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 5033 event pairs, 119 based on Foata normal form. 0/807 useless extension candidates. Maximal degree in co-relation 1387. Up to 389 conditions per place. [2022-11-20 12:39:14,635 INFO L137 encePairwiseOnDemand]: 104/115 looper letters, 68 selfloop transitions, 22 changer transitions 0/163 dead transitions. [2022-11-20 12:39:14,635 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 163 transitions, 519 flow [2022-11-20 12:39:14,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:39:14,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:39:14,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 559 transitions. [2022-11-20 12:39:14,639 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8101449275362319 [2022-11-20 12:39:14,640 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 559 transitions. [2022-11-20 12:39:14,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 559 transitions. [2022-11-20 12:39:14,641 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:39:14,641 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 559 transitions. [2022-11-20 12:39:14,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 93.16666666666667) internal successors, (559), 6 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:14,646 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:14,647 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:14,648 INFO L175 Difference]: Start difference. First operand has 118 places, 109 transitions, 231 flow. Second operand 6 states and 559 transitions. [2022-11-20 12:39:14,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 163 transitions, 519 flow [2022-11-20 12:39:14,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 163 transitions, 509 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 12:39:14,661 INFO L231 Difference]: Finished difference. Result has 123 places, 130 transitions, 371 flow [2022-11-20 12:39:14,662 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=371, PETRI_PLACES=123, PETRI_TRANSITIONS=130} [2022-11-20 12:39:14,664 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 5 predicate places. [2022-11-20 12:39:14,664 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 130 transitions, 371 flow [2022-11-20 12:39:14,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 80.5) internal successors, (483), 6 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:14,666 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:39:14,666 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:39:14,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 12:39:14,672 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-20 12:39:14,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:39:14,675 INFO L85 PathProgramCache]: Analyzing trace with hash 72490025, now seen corresponding path program 1 times [2022-11-20 12:39:14,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:39:14,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752663825] [2022-11-20 12:39:14,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:39:14,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:39:14,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:39:15,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:39:15,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:39:15,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752663825] [2022-11-20 12:39:15,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752663825] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:39:15,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:39:15,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:39:15,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130187659] [2022-11-20 12:39:15,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:39:15,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:39:15,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:39:15,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:39:15,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:39:15,221 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 115 [2022-11-20 12:39:15,224 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 130 transitions, 371 flow. Second operand has 6 states, 6 states have (on average 80.5) internal successors, (483), 6 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:15,224 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:39:15,224 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 115 [2022-11-20 12:39:15,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:39:15,735 INFO L130 PetriNetUnfolder]: 258/935 cut-off events. [2022-11-20 12:39:15,735 INFO L131 PetriNetUnfolder]: For 281/289 co-relation queries the response was YES. [2022-11-20 12:39:15,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1847 conditions, 935 events. 258/935 cut-off events. For 281/289 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 5547 event pairs, 106 based on Foata normal form. 0/878 useless extension candidates. Maximal degree in co-relation 1821. Up to 444 conditions per place. [2022-11-20 12:39:15,742 INFO L137 encePairwiseOnDemand]: 104/115 looper letters, 81 selfloop transitions, 26 changer transitions 0/180 dead transitions. [2022-11-20 12:39:15,742 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 180 transitions, 775 flow [2022-11-20 12:39:15,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:39:15,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:39:15,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 555 transitions. [2022-11-20 12:39:15,746 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8043478260869565 [2022-11-20 12:39:15,747 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 555 transitions. [2022-11-20 12:39:15,747 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 555 transitions. [2022-11-20 12:39:15,747 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:39:15,748 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 555 transitions. [2022-11-20 12:39:15,749 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 92.5) internal successors, (555), 6 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:15,752 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:15,752 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:15,752 INFO L175 Difference]: Start difference. First operand has 123 places, 130 transitions, 371 flow. Second operand 6 states and 555 transitions. [2022-11-20 12:39:15,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 180 transitions, 775 flow [2022-11-20 12:39:15,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 180 transitions, 775 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 12:39:15,766 INFO L231 Difference]: Finished difference. Result has 133 places, 151 transitions, 555 flow [2022-11-20 12:39:15,767 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=371, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=555, PETRI_PLACES=133, PETRI_TRANSITIONS=151} [2022-11-20 12:39:15,771 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 15 predicate places. [2022-11-20 12:39:15,771 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 151 transitions, 555 flow [2022-11-20 12:39:15,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 80.5) internal successors, (483), 6 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:15,772 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:39:15,773 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:39:15,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 12:39:15,773 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-20 12:39:15,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:39:15,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1581779769, now seen corresponding path program 1 times [2022-11-20 12:39:15,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:39:15,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940955636] [2022-11-20 12:39:15,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:39:15,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:39:15,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:39:16,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:39:16,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:39:16,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940955636] [2022-11-20 12:39:16,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940955636] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:39:16,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:39:16,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:39:16,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342771328] [2022-11-20 12:39:16,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:39:16,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:39:16,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:39:16,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:39:16,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:39:16,260 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 115 [2022-11-20 12:39:16,261 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 151 transitions, 555 flow. Second operand has 6 states, 6 states have (on average 79.66666666666667) internal successors, (478), 6 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:16,261 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:39:16,261 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 115 [2022-11-20 12:39:16,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:39:16,804 INFO L130 PetriNetUnfolder]: 350/1245 cut-off events. [2022-11-20 12:39:16,804 INFO L131 PetriNetUnfolder]: For 646/659 co-relation queries the response was YES. [2022-11-20 12:39:16,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2800 conditions, 1245 events. 350/1245 cut-off events. For 646/659 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 8209 event pairs, 132 based on Foata normal form. 4/1188 useless extension candidates. Maximal degree in co-relation 2769. Up to 644 conditions per place. [2022-11-20 12:39:16,815 INFO L137 encePairwiseOnDemand]: 100/115 looper letters, 87 selfloop transitions, 53 changer transitions 4/215 dead transitions. [2022-11-20 12:39:16,815 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 215 transitions, 1131 flow [2022-11-20 12:39:16,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:39:16,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:39:16,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 548 transitions. [2022-11-20 12:39:16,818 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7942028985507247 [2022-11-20 12:39:16,818 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 548 transitions. [2022-11-20 12:39:16,818 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 548 transitions. [2022-11-20 12:39:16,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:39:16,819 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 548 transitions. [2022-11-20 12:39:16,821 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 91.33333333333333) internal successors, (548), 6 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:16,823 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:16,823 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:16,824 INFO L175 Difference]: Start difference. First operand has 133 places, 151 transitions, 555 flow. Second operand 6 states and 548 transitions. [2022-11-20 12:39:16,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 215 transitions, 1131 flow [2022-11-20 12:39:16,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 215 transitions, 1131 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 12:39:16,839 INFO L231 Difference]: Finished difference. Result has 143 places, 198 transitions, 1037 flow [2022-11-20 12:39:16,839 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=555, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1037, PETRI_PLACES=143, PETRI_TRANSITIONS=198} [2022-11-20 12:39:16,842 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 25 predicate places. [2022-11-20 12:39:16,843 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 198 transitions, 1037 flow [2022-11-20 12:39:16,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.66666666666667) internal successors, (478), 6 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:16,844 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:39:16,844 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:39:16,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 12:39:16,845 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-20 12:39:16,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:39:16,846 INFO L85 PathProgramCache]: Analyzing trace with hash 138758537, now seen corresponding path program 1 times [2022-11-20 12:39:16,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:39:16,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459335048] [2022-11-20 12:39:16,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:39:16,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:39:16,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:39:17,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:39:17,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:39:17,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459335048] [2022-11-20 12:39:17,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459335048] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:39:17,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:39:17,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:39:17,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283156669] [2022-11-20 12:39:17,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:39:17,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:39:17,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:39:17,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:39:17,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:39:17,370 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 115 [2022-11-20 12:39:17,371 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 198 transitions, 1037 flow. Second operand has 6 states, 6 states have (on average 79.66666666666667) internal successors, (478), 6 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:17,372 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:39:17,374 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 115 [2022-11-20 12:39:17,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:39:18,060 INFO L130 PetriNetUnfolder]: 442/1423 cut-off events. [2022-11-20 12:39:18,061 INFO L131 PetriNetUnfolder]: For 1570/1586 co-relation queries the response was YES. [2022-11-20 12:39:18,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4035 conditions, 1423 events. 442/1423 cut-off events. For 1570/1586 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 9323 event pairs, 130 based on Foata normal form. 0/1392 useless extension candidates. Maximal degree in co-relation 3999. Up to 796 conditions per place. [2022-11-20 12:39:18,073 INFO L137 encePairwiseOnDemand]: 100/115 looper letters, 124 selfloop transitions, 58 changer transitions 15/269 dead transitions. [2022-11-20 12:39:18,073 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 269 transitions, 1849 flow [2022-11-20 12:39:18,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:39:18,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:39:18,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 548 transitions. [2022-11-20 12:39:18,076 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7942028985507247 [2022-11-20 12:39:18,076 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 548 transitions. [2022-11-20 12:39:18,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 548 transitions. [2022-11-20 12:39:18,077 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:39:18,077 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 548 transitions. [2022-11-20 12:39:18,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 91.33333333333333) internal successors, (548), 6 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:18,081 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:18,082 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:18,082 INFO L175 Difference]: Start difference. First operand has 143 places, 198 transitions, 1037 flow. Second operand 6 states and 548 transitions. [2022-11-20 12:39:18,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 269 transitions, 1849 flow [2022-11-20 12:39:18,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 269 transitions, 1785 flow, removed 32 selfloop flow, removed 0 redundant places. [2022-11-20 12:39:18,104 INFO L231 Difference]: Finished difference. Result has 153 places, 242 transitions, 1529 flow [2022-11-20 12:39:18,105 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=979, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1529, PETRI_PLACES=153, PETRI_TRANSITIONS=242} [2022-11-20 12:39:18,106 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 35 predicate places. [2022-11-20 12:39:18,106 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 242 transitions, 1529 flow [2022-11-20 12:39:18,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.66666666666667) internal successors, (478), 6 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:18,107 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:39:18,107 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:39:18,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 12:39:18,108 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-20 12:39:18,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:39:18,108 INFO L85 PathProgramCache]: Analyzing trace with hash 22527780, now seen corresponding path program 1 times [2022-11-20 12:39:18,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:39:18,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128043233] [2022-11-20 12:39:18,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:39:18,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:39:18,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:39:19,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:39:19,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:39:19,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128043233] [2022-11-20 12:39:19,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128043233] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:39:19,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:39:19,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 12:39:19,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303165567] [2022-11-20 12:39:19,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:39:19,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 12:39:19,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:39:19,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 12:39:19,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:39:19,348 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-20 12:39:19,349 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 242 transitions, 1529 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:19,350 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:39:19,350 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-20 12:39:19,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:39:20,991 INFO L130 PetriNetUnfolder]: 637/1932 cut-off events. [2022-11-20 12:39:20,991 INFO L131 PetriNetUnfolder]: For 3220/3220 co-relation queries the response was YES. [2022-11-20 12:39:21,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6021 conditions, 1932 events. 637/1932 cut-off events. For 3220/3220 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 13003 event pairs, 65 based on Foata normal form. 13/1935 useless extension candidates. Maximal degree in co-relation 5975. Up to 936 conditions per place. [2022-11-20 12:39:21,010 INFO L137 encePairwiseOnDemand]: 102/115 looper letters, 253 selfloop transitions, 9 changer transitions 66/391 dead transitions. [2022-11-20 12:39:21,011 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 391 transitions, 3097 flow [2022-11-20 12:39:21,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 12:39:21,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-20 12:39:21,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 917 transitions. [2022-11-20 12:39:21,015 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.724901185770751 [2022-11-20 12:39:21,015 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 917 transitions. [2022-11-20 12:39:21,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 917 transitions. [2022-11-20 12:39:21,016 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:39:21,017 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 917 transitions. [2022-11-20 12:39:21,020 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 83.36363636363636) internal successors, (917), 11 states have internal predecessors, (917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:21,023 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:21,025 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:21,026 INFO L175 Difference]: Start difference. First operand has 153 places, 242 transitions, 1529 flow. Second operand 11 states and 917 transitions. [2022-11-20 12:39:21,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 391 transitions, 3097 flow [2022-11-20 12:39:21,059 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 391 transitions, 3029 flow, removed 34 selfloop flow, removed 0 redundant places. [2022-11-20 12:39:21,068 INFO L231 Difference]: Finished difference. Result has 167 places, 242 transitions, 1490 flow [2022-11-20 12:39:21,068 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1461, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1490, PETRI_PLACES=167, PETRI_TRANSITIONS=242} [2022-11-20 12:39:21,072 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 49 predicate places. [2022-11-20 12:39:21,072 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 242 transitions, 1490 flow [2022-11-20 12:39:21,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:21,073 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:39:21,074 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:39:21,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 12:39:21,074 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-20 12:39:21,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:39:21,075 INFO L85 PathProgramCache]: Analyzing trace with hash 908891550, now seen corresponding path program 2 times [2022-11-20 12:39:21,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:39:21,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144898403] [2022-11-20 12:39:21,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:39:21,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:39:21,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:39:22,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:39:22,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:39:22,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144898403] [2022-11-20 12:39:22,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144898403] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:39:22,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:39:22,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 12:39:22,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949257408] [2022-11-20 12:39:22,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:39:22,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 12:39:22,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:39:22,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 12:39:22,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:39:22,788 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-20 12:39:22,790 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 242 transitions, 1490 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:22,790 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:39:22,791 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-20 12:39:22,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:39:24,727 INFO L130 PetriNetUnfolder]: 1146/3413 cut-off events. [2022-11-20 12:39:24,728 INFO L131 PetriNetUnfolder]: For 6117/6119 co-relation queries the response was YES. [2022-11-20 12:39:24,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11429 conditions, 3413 events. 1146/3413 cut-off events. For 6117/6119 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 26643 event pairs, 136 based on Foata normal form. 14/3407 useless extension candidates. Maximal degree in co-relation 11375. Up to 1174 conditions per place. [2022-11-20 12:39:24,765 INFO L137 encePairwiseOnDemand]: 102/115 looper letters, 417 selfloop transitions, 10 changer transitions 48/538 dead transitions. [2022-11-20 12:39:24,765 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 538 transitions, 4603 flow [2022-11-20 12:39:24,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 12:39:24,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-20 12:39:24,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 933 transitions. [2022-11-20 12:39:24,770 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7375494071146245 [2022-11-20 12:39:24,770 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 933 transitions. [2022-11-20 12:39:24,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 933 transitions. [2022-11-20 12:39:24,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:39:24,772 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 933 transitions. [2022-11-20 12:39:24,774 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 84.81818181818181) internal successors, (933), 11 states have internal predecessors, (933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:24,778 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:24,778 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:24,779 INFO L175 Difference]: Start difference. First operand has 167 places, 242 transitions, 1490 flow. Second operand 11 states and 933 transitions. [2022-11-20 12:39:24,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 538 transitions, 4603 flow [2022-11-20 12:39:24,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 538 transitions, 4543 flow, removed 9 selfloop flow, removed 9 redundant places. [2022-11-20 12:39:24,853 INFO L231 Difference]: Finished difference. Result has 172 places, 248 transitions, 1538 flow [2022-11-20 12:39:24,853 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1469, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1538, PETRI_PLACES=172, PETRI_TRANSITIONS=248} [2022-11-20 12:39:24,855 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 54 predicate places. [2022-11-20 12:39:24,855 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 248 transitions, 1538 flow [2022-11-20 12:39:24,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:24,856 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:39:24,856 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:39:24,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 12:39:24,857 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-20 12:39:24,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:39:24,858 INFO L85 PathProgramCache]: Analyzing trace with hash 419805406, now seen corresponding path program 3 times [2022-11-20 12:39:24,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:39:24,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776563676] [2022-11-20 12:39:24,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:39:24,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:39:24,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:39:25,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:39:25,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:39:25,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776563676] [2022-11-20 12:39:25,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776563676] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:39:25,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:39:25,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 12:39:25,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70697179] [2022-11-20 12:39:25,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:39:25,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 12:39:25,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:39:25,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 12:39:25,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:39:25,866 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-20 12:39:25,868 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 248 transitions, 1538 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:25,868 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:39:25,868 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-20 12:39:25,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:39:27,800 INFO L130 PetriNetUnfolder]: 1156/3455 cut-off events. [2022-11-20 12:39:27,801 INFO L131 PetriNetUnfolder]: For 6751/6766 co-relation queries the response was YES. [2022-11-20 12:39:27,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11784 conditions, 3455 events. 1156/3455 cut-off events. For 6751/6766 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 26977 event pairs, 125 based on Foata normal form. 21/3456 useless extension candidates. Maximal degree in co-relation 11726. Up to 1846 conditions per place. [2022-11-20 12:39:27,838 INFO L137 encePairwiseOnDemand]: 102/115 looper letters, 240 selfloop transitions, 15 changer transitions 75/393 dead transitions. [2022-11-20 12:39:27,838 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 393 transitions, 3166 flow [2022-11-20 12:39:27,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 12:39:27,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-20 12:39:27,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 913 transitions. [2022-11-20 12:39:27,842 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7217391304347827 [2022-11-20 12:39:27,843 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 913 transitions. [2022-11-20 12:39:27,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 913 transitions. [2022-11-20 12:39:27,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:39:27,844 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 913 transitions. [2022-11-20 12:39:27,847 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 83.0) internal successors, (913), 11 states have internal predecessors, (913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:27,851 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:27,853 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:27,854 INFO L175 Difference]: Start difference. First operand has 172 places, 248 transitions, 1538 flow. Second operand 11 states and 913 transitions. [2022-11-20 12:39:27,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 393 transitions, 3166 flow [2022-11-20 12:39:27,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 393 transitions, 3133 flow, removed 11 selfloop flow, removed 5 redundant places. [2022-11-20 12:39:27,920 INFO L231 Difference]: Finished difference. Result has 179 places, 248 transitions, 1571 flow [2022-11-20 12:39:27,922 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1527, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=248, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1571, PETRI_PLACES=179, PETRI_TRANSITIONS=248} [2022-11-20 12:39:27,923 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 61 predicate places. [2022-11-20 12:39:27,923 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 248 transitions, 1571 flow [2022-11-20 12:39:27,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:27,924 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:39:27,924 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:39:27,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 12:39:27,925 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-20 12:39:27,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:39:27,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1219974222, now seen corresponding path program 4 times [2022-11-20 12:39:27,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:39:27,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882322706] [2022-11-20 12:39:27,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:39:27,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:39:27,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:39:29,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:39:29,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:39:29,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882322706] [2022-11-20 12:39:29,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882322706] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:39:29,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:39:29,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 12:39:29,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50270770] [2022-11-20 12:39:29,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:39:29,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 12:39:29,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:39:29,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 12:39:29,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:39:29,345 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-20 12:39:29,346 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 248 transitions, 1571 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:29,346 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:39:29,347 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-20 12:39:29,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:39:31,700 INFO L130 PetriNetUnfolder]: 1617/4905 cut-off events. [2022-11-20 12:39:31,701 INFO L131 PetriNetUnfolder]: For 10790/10806 co-relation queries the response was YES. [2022-11-20 12:39:31,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17191 conditions, 4905 events. 1617/4905 cut-off events. For 10790/10806 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 42149 event pairs, 245 based on Foata normal form. 22/4896 useless extension candidates. Maximal degree in co-relation 17131. Up to 2112 conditions per place. [2022-11-20 12:39:31,816 INFO L137 encePairwiseOnDemand]: 102/115 looper letters, 413 selfloop transitions, 10 changer transitions 59/545 dead transitions. [2022-11-20 12:39:31,830 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 545 transitions, 4800 flow [2022-11-20 12:39:31,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 12:39:31,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-20 12:39:31,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 929 transitions. [2022-11-20 12:39:31,836 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7343873517786561 [2022-11-20 12:39:31,836 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 929 transitions. [2022-11-20 12:39:31,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 929 transitions. [2022-11-20 12:39:31,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:39:31,851 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 929 transitions. [2022-11-20 12:39:31,854 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 84.45454545454545) internal successors, (929), 11 states have internal predecessors, (929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:31,858 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:31,859 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:31,859 INFO L175 Difference]: Start difference. First operand has 179 places, 248 transitions, 1571 flow. Second operand 11 states and 929 transitions. [2022-11-20 12:39:31,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 545 transitions, 4800 flow [2022-11-20 12:39:31,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 545 transitions, 4725 flow, removed 4 selfloop flow, removed 9 redundant places. [2022-11-20 12:39:31,994 INFO L231 Difference]: Finished difference. Result has 182 places, 252 transitions, 1616 flow [2022-11-20 12:39:31,995 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1541, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=248, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1616, PETRI_PLACES=182, PETRI_TRANSITIONS=252} [2022-11-20 12:39:31,995 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 64 predicate places. [2022-11-20 12:39:31,996 INFO L495 AbstractCegarLoop]: Abstraction has has 182 places, 252 transitions, 1616 flow [2022-11-20 12:39:31,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:31,997 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:39:31,997 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:39:31,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 12:39:31,998 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-20 12:39:31,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:39:31,998 INFO L85 PathProgramCache]: Analyzing trace with hash -991942528, now seen corresponding path program 5 times [2022-11-20 12:39:31,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:39:31,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583785023] [2022-11-20 12:39:31,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:39:32,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:39:32,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:39:33,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:39:33,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:39:33,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583785023] [2022-11-20 12:39:33,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583785023] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:39:33,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:39:33,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 12:39:33,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369294074] [2022-11-20 12:39:33,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:39:33,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 12:39:33,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:39:33,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 12:39:33,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:39:33,008 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-20 12:39:33,009 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 252 transitions, 1616 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:33,009 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:39:33,009 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-20 12:39:33,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:39:35,423 INFO L130 PetriNetUnfolder]: 2109/6283 cut-off events. [2022-11-20 12:39:35,424 INFO L131 PetriNetUnfolder]: For 14614/14647 co-relation queries the response was YES. [2022-11-20 12:39:35,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22181 conditions, 6283 events. 2109/6283 cut-off events. For 14614/14647 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 56997 event pairs, 334 based on Foata normal form. 27/6269 useless extension candidates. Maximal degree in co-relation 22119. Up to 3064 conditions per place. [2022-11-20 12:39:35,524 INFO L137 encePairwiseOnDemand]: 102/115 looper letters, 410 selfloop transitions, 14 changer transitions 59/546 dead transitions. [2022-11-20 12:39:35,524 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 546 transitions, 4786 flow [2022-11-20 12:39:35,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 12:39:35,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-20 12:39:35,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 929 transitions. [2022-11-20 12:39:35,528 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7343873517786561 [2022-11-20 12:39:35,529 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 929 transitions. [2022-11-20 12:39:35,529 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 929 transitions. [2022-11-20 12:39:35,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:39:35,530 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 929 transitions. [2022-11-20 12:39:35,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 84.45454545454545) internal successors, (929), 11 states have internal predecessors, (929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:35,536 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:35,537 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:35,537 INFO L175 Difference]: Start difference. First operand has 182 places, 252 transitions, 1616 flow. Second operand 11 states and 929 transitions. [2022-11-20 12:39:35,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 546 transitions, 4786 flow [2022-11-20 12:39:35,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 546 transitions, 4749 flow, removed 2 selfloop flow, removed 7 redundant places. [2022-11-20 12:39:35,668 INFO L231 Difference]: Finished difference. Result has 188 places, 256 transitions, 1681 flow [2022-11-20 12:39:35,668 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1601, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1681, PETRI_PLACES=188, PETRI_TRANSITIONS=256} [2022-11-20 12:39:35,669 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 70 predicate places. [2022-11-20 12:39:35,669 INFO L495 AbstractCegarLoop]: Abstraction has has 188 places, 256 transitions, 1681 flow [2022-11-20 12:39:35,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:35,670 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:39:35,670 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:39:35,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 12:39:35,671 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-20 12:39:35,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:39:35,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1443695394, now seen corresponding path program 6 times [2022-11-20 12:39:35,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:39:35,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971850102] [2022-11-20 12:39:35,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:39:35,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:39:35,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:39:36,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:39:36,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:39:36,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971850102] [2022-11-20 12:39:36,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971850102] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:39:36,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:39:36,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 12:39:36,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238985033] [2022-11-20 12:39:36,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:39:36,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 12:39:36,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:39:36,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 12:39:36,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:39:36,466 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-20 12:39:36,467 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 256 transitions, 1681 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:36,467 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:39:36,468 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-20 12:39:36,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:39:39,835 INFO L130 PetriNetUnfolder]: 2614/8015 cut-off events. [2022-11-20 12:39:39,835 INFO L131 PetriNetUnfolder]: For 19878/19911 co-relation queries the response was YES. [2022-11-20 12:39:39,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28251 conditions, 8015 events. 2614/8015 cut-off events. For 19878/19911 co-relation queries the response was YES. Maximal size of possible extension queue 343. Compared 77041 event pairs, 719 based on Foata normal form. 25/7983 useless extension candidates. Maximal degree in co-relation 28186. Up to 3145 conditions per place. [2022-11-20 12:39:39,935 INFO L137 encePairwiseOnDemand]: 102/115 looper letters, 563 selfloop transitions, 12 changer transitions 60/698 dead transitions. [2022-11-20 12:39:39,935 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 698 transitions, 6414 flow [2022-11-20 12:39:39,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 12:39:39,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-20 12:39:39,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 948 transitions. [2022-11-20 12:39:39,939 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7494071146245059 [2022-11-20 12:39:39,940 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 948 transitions. [2022-11-20 12:39:39,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 948 transitions. [2022-11-20 12:39:39,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:39:39,941 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 948 transitions. [2022-11-20 12:39:39,944 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 86.18181818181819) internal successors, (948), 11 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:39,947 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:39,948 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:39,948 INFO L175 Difference]: Start difference. First operand has 188 places, 256 transitions, 1681 flow. Second operand 11 states and 948 transitions. [2022-11-20 12:39:39,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 698 transitions, 6414 flow [2022-11-20 12:39:40,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 698 transitions, 6359 flow, removed 8 selfloop flow, removed 7 redundant places. [2022-11-20 12:39:40,137 INFO L231 Difference]: Finished difference. Result has 195 places, 261 transitions, 1750 flow [2022-11-20 12:39:40,138 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1653, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=256, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1750, PETRI_PLACES=195, PETRI_TRANSITIONS=261} [2022-11-20 12:39:40,139 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 77 predicate places. [2022-11-20 12:39:40,139 INFO L495 AbstractCegarLoop]: Abstraction has has 195 places, 261 transitions, 1750 flow [2022-11-20 12:39:40,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:40,140 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:39:40,140 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:39:40,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 12:39:40,141 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-20 12:39:40,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:39:40,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1619917066, now seen corresponding path program 7 times [2022-11-20 12:39:40,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:39:40,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679415598] [2022-11-20 12:39:40,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:39:40,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:39:40,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:39:40,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:39:40,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:39:40,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679415598] [2022-11-20 12:39:40,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679415598] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:39:40,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:39:40,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 12:39:40,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807995586] [2022-11-20 12:39:40,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:39:40,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 12:39:40,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:39:40,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 12:39:40,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:39:40,928 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-20 12:39:40,929 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 261 transitions, 1750 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:40,930 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:39:40,930 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-20 12:39:40,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:39:44,113 INFO L130 PetriNetUnfolder]: 3056/9314 cut-off events. [2022-11-20 12:39:44,114 INFO L131 PetriNetUnfolder]: For 24561/24621 co-relation queries the response was YES. [2022-11-20 12:39:44,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33319 conditions, 9314 events. 3056/9314 cut-off events. For 24561/24621 co-relation queries the response was YES. Maximal size of possible extension queue 411. Compared 92675 event pairs, 735 based on Foata normal form. 48/9299 useless extension candidates. Maximal degree in co-relation 33250. Up to 2993 conditions per place. [2022-11-20 12:39:44,211 INFO L137 encePairwiseOnDemand]: 102/115 looper letters, 590 selfloop transitions, 15 changer transitions 34/702 dead transitions. [2022-11-20 12:39:44,211 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 702 transitions, 6473 flow [2022-11-20 12:39:44,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 12:39:44,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-20 12:39:44,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 948 transitions. [2022-11-20 12:39:44,219 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7494071146245059 [2022-11-20 12:39:44,219 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 948 transitions. [2022-11-20 12:39:44,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 948 transitions. [2022-11-20 12:39:44,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:39:44,220 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 948 transitions. [2022-11-20 12:39:44,223 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 86.18181818181819) internal successors, (948), 11 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:44,226 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:44,227 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:44,227 INFO L175 Difference]: Start difference. First operand has 195 places, 261 transitions, 1750 flow. Second operand 11 states and 948 transitions. [2022-11-20 12:39:44,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 702 transitions, 6473 flow [2022-11-20 12:39:44,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 702 transitions, 6441 flow, removed 9 selfloop flow, removed 6 redundant places. [2022-11-20 12:39:44,470 INFO L231 Difference]: Finished difference. Result has 201 places, 266 transitions, 1836 flow [2022-11-20 12:39:44,471 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1729, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=261, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=246, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1836, PETRI_PLACES=201, PETRI_TRANSITIONS=266} [2022-11-20 12:39:44,472 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 83 predicate places. [2022-11-20 12:39:44,472 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 266 transitions, 1836 flow [2022-11-20 12:39:44,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:44,473 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:39:44,474 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:39:44,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 12:39:44,474 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-20 12:39:44,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:39:44,475 INFO L85 PathProgramCache]: Analyzing trace with hash 128038670, now seen corresponding path program 8 times [2022-11-20 12:39:44,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:39:44,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545360395] [2022-11-20 12:39:44,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:39:44,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:39:44,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:39:45,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:39:45,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:39:45,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545360395] [2022-11-20 12:39:45,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545360395] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:39:45,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:39:45,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 12:39:45,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387537898] [2022-11-20 12:39:45,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:39:45,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 12:39:45,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:39:45,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 12:39:45,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:39:45,196 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-20 12:39:45,197 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 266 transitions, 1836 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:45,197 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:39:45,197 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-20 12:39:45,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:39:47,882 INFO L130 PetriNetUnfolder]: 3065/9486 cut-off events. [2022-11-20 12:39:47,883 INFO L131 PetriNetUnfolder]: For 26883/26935 co-relation queries the response was YES. [2022-11-20 12:39:47,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33996 conditions, 9486 events. 3065/9486 cut-off events. For 26883/26935 co-relation queries the response was YES. Maximal size of possible extension queue 411. Compared 95056 event pairs, 911 based on Foata normal form. 35/9457 useless extension candidates. Maximal degree in co-relation 33925. Up to 2171 conditions per place. [2022-11-20 12:39:47,982 INFO L137 encePairwiseOnDemand]: 102/115 looper letters, 561 selfloop transitions, 18 changer transitions 58/700 dead transitions. [2022-11-20 12:39:47,982 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 700 transitions, 6520 flow [2022-11-20 12:39:47,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 12:39:47,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-20 12:39:47,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 950 transitions. [2022-11-20 12:39:47,986 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7509881422924901 [2022-11-20 12:39:47,986 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 950 transitions. [2022-11-20 12:39:47,986 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 950 transitions. [2022-11-20 12:39:47,987 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:39:47,987 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 950 transitions. [2022-11-20 12:39:47,990 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 86.36363636363636) internal successors, (950), 11 states have internal predecessors, (950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:47,993 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:47,994 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:47,994 INFO L175 Difference]: Start difference. First operand has 201 places, 266 transitions, 1836 flow. Second operand 11 states and 950 transitions. [2022-11-20 12:39:47,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 700 transitions, 6520 flow [2022-11-20 12:39:48,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 700 transitions, 6475 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-11-20 12:39:48,246 INFO L231 Difference]: Finished difference. Result has 211 places, 269 transitions, 1902 flow [2022-11-20 12:39:48,247 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1801, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=266, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1902, PETRI_PLACES=211, PETRI_TRANSITIONS=269} [2022-11-20 12:39:48,248 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 93 predicate places. [2022-11-20 12:39:48,248 INFO L495 AbstractCegarLoop]: Abstraction has has 211 places, 269 transitions, 1902 flow [2022-11-20 12:39:48,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:48,249 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:39:48,249 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:39:48,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 12:39:48,250 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-20 12:39:48,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:39:48,250 INFO L85 PathProgramCache]: Analyzing trace with hash 713026534, now seen corresponding path program 9 times [2022-11-20 12:39:48,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:39:48,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018078314] [2022-11-20 12:39:48,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:39:48,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:39:48,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:39:48,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:39:48,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:39:48,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018078314] [2022-11-20 12:39:48,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018078314] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:39:48,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:39:48,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 12:39:48,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434949369] [2022-11-20 12:39:48,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:39:48,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 12:39:48,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:39:48,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 12:39:48,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:39:48,982 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-20 12:39:48,983 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 269 transitions, 1902 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:48,983 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:39:48,983 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-20 12:39:48,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:39:52,829 INFO L130 PetriNetUnfolder]: 3561/10941 cut-off events. [2022-11-20 12:39:52,830 INFO L131 PetriNetUnfolder]: For 32496/32558 co-relation queries the response was YES. [2022-11-20 12:39:52,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39653 conditions, 10941 events. 3561/10941 cut-off events. For 32496/32558 co-relation queries the response was YES. Maximal size of possible extension queue 478. Compared 112972 event pairs, 961 based on Foata normal form. 28/10893 useless extension candidates. Maximal degree in co-relation 39576. Up to 5105 conditions per place. [2022-11-20 12:39:52,929 INFO L137 encePairwiseOnDemand]: 102/115 looper letters, 438 selfloop transitions, 18 changer transitions 48/567 dead transitions. [2022-11-20 12:39:52,930 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 567 transitions, 5252 flow [2022-11-20 12:39:52,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 12:39:52,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-20 12:39:52,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 926 transitions. [2022-11-20 12:39:52,933 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7320158102766798 [2022-11-20 12:39:52,933 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 926 transitions. [2022-11-20 12:39:52,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 926 transitions. [2022-11-20 12:39:52,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:39:52,934 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 926 transitions. [2022-11-20 12:39:52,937 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 84.18181818181819) internal successors, (926), 11 states have internal predecessors, (926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:52,940 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:52,941 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:52,941 INFO L175 Difference]: Start difference. First operand has 211 places, 269 transitions, 1902 flow. Second operand 11 states and 926 transitions. [2022-11-20 12:39:52,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 567 transitions, 5252 flow [2022-11-20 12:39:53,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 567 transitions, 5199 flow, removed 18 selfloop flow, removed 6 redundant places. [2022-11-20 12:39:53,196 INFO L231 Difference]: Finished difference. Result has 219 places, 275 transitions, 2001 flow [2022-11-20 12:39:53,196 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1867, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2001, PETRI_PLACES=219, PETRI_TRANSITIONS=275} [2022-11-20 12:39:53,197 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 101 predicate places. [2022-11-20 12:39:53,197 INFO L495 AbstractCegarLoop]: Abstraction has has 219 places, 275 transitions, 2001 flow [2022-11-20 12:39:53,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:53,198 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:39:53,198 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:39:53,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 12:39:53,199 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-20 12:39:53,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:39:53,200 INFO L85 PathProgramCache]: Analyzing trace with hash -686273984, now seen corresponding path program 10 times [2022-11-20 12:39:53,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:39:53,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773763832] [2022-11-20 12:39:53,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:39:53,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:39:53,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:39:54,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:39:54,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:39:54,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773763832] [2022-11-20 12:39:54,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773763832] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:39:54,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:39:54,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 12:39:54,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750214832] [2022-11-20 12:39:54,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:39:54,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 12:39:54,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:39:54,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 12:39:54,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:39:54,289 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-20 12:39:54,290 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 275 transitions, 2001 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:54,290 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:39:54,290 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-20 12:39:54,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:39:58,374 INFO L130 PetriNetUnfolder]: 4013/12394 cut-off events. [2022-11-20 12:39:58,374 INFO L131 PetriNetUnfolder]: For 38267/38342 co-relation queries the response was YES. [2022-11-20 12:39:58,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45152 conditions, 12394 events. 4013/12394 cut-off events. For 38267/38342 co-relation queries the response was YES. Maximal size of possible extension queue 547. Compared 131164 event pairs, 1239 based on Foata normal form. 48/12357 useless extension candidates. Maximal degree in co-relation 45071. Up to 3223 conditions per place. [2022-11-20 12:39:58,491 INFO L137 encePairwiseOnDemand]: 102/115 looper letters, 741 selfloop transitions, 18 changer transitions 32/854 dead transitions. [2022-11-20 12:39:58,492 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 854 transitions, 8196 flow [2022-11-20 12:39:58,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 12:39:58,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-20 12:39:58,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 968 transitions. [2022-11-20 12:39:58,495 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7652173913043478 [2022-11-20 12:39:58,495 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 968 transitions. [2022-11-20 12:39:58,495 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 968 transitions. [2022-11-20 12:39:58,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:39:58,496 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 968 transitions. [2022-11-20 12:39:58,498 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 88.0) internal successors, (968), 11 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:58,501 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:58,502 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:58,502 INFO L175 Difference]: Start difference. First operand has 219 places, 275 transitions, 2001 flow. Second operand 11 states and 968 transitions. [2022-11-20 12:39:58,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 854 transitions, 8196 flow [2022-11-20 12:39:58,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 854 transitions, 8149 flow, removed 14 selfloop flow, removed 5 redundant places. [2022-11-20 12:39:58,800 INFO L231 Difference]: Finished difference. Result has 227 places, 280 transitions, 2091 flow [2022-11-20 12:39:58,801 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1959, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2091, PETRI_PLACES=227, PETRI_TRANSITIONS=280} [2022-11-20 12:39:58,801 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 109 predicate places. [2022-11-20 12:39:58,801 INFO L495 AbstractCegarLoop]: Abstraction has has 227 places, 280 transitions, 2091 flow [2022-11-20 12:39:58,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:39:58,802 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:39:58,802 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:39:58,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-20 12:39:58,803 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-20 12:39:58,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:39:58,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1400520722, now seen corresponding path program 11 times [2022-11-20 12:39:58,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:39:58,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613402507] [2022-11-20 12:39:58,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:39:58,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:39:58,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:00,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:40:00,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:40:00,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613402507] [2022-11-20 12:40:00,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613402507] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:40:00,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:40:00,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 12:40:00,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947007117] [2022-11-20 12:40:00,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:40:00,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 12:40:00,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:40:00,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 12:40:00,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:40:00,041 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-20 12:40:00,043 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 280 transitions, 2091 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:00,043 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:40:00,043 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-20 12:40:00,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:40:03,892 INFO L130 PetriNetUnfolder]: 4024/12425 cut-off events. [2022-11-20 12:40:03,892 INFO L131 PetriNetUnfolder]: For 39277/39372 co-relation queries the response was YES. [2022-11-20 12:40:03,986 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45379 conditions, 12425 events. 4024/12425 cut-off events. For 39277/39372 co-relation queries the response was YES. Maximal size of possible extension queue 546. Compared 131853 event pairs, 1127 based on Foata normal form. 41/12375 useless extension candidates. Maximal degree in co-relation 45295. Up to 5125 conditions per place. [2022-11-20 12:40:04,012 INFO L137 encePairwiseOnDemand]: 102/115 looper letters, 426 selfloop transitions, 22 changer transitions 60/571 dead transitions. [2022-11-20 12:40:04,012 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 571 transitions, 5333 flow [2022-11-20 12:40:04,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 12:40:04,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-20 12:40:04,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 930 transitions. [2022-11-20 12:40:04,015 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7351778656126482 [2022-11-20 12:40:04,016 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 930 transitions. [2022-11-20 12:40:04,016 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 930 transitions. [2022-11-20 12:40:04,016 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:40:04,016 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 930 transitions. [2022-11-20 12:40:04,018 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 84.54545454545455) internal successors, (930), 11 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:04,020 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:04,021 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:04,021 INFO L175 Difference]: Start difference. First operand has 227 places, 280 transitions, 2091 flow. Second operand 11 states and 930 transitions. [2022-11-20 12:40:04,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 571 transitions, 5333 flow [2022-11-20 12:40:04,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 571 transitions, 5295 flow, removed 6 selfloop flow, removed 6 redundant places. [2022-11-20 12:40:04,350 INFO L231 Difference]: Finished difference. Result has 237 places, 283 transitions, 2169 flow [2022-11-20 12:40:04,350 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=2055, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=280, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2169, PETRI_PLACES=237, PETRI_TRANSITIONS=283} [2022-11-20 12:40:04,351 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 119 predicate places. [2022-11-20 12:40:04,351 INFO L495 AbstractCegarLoop]: Abstraction has has 237 places, 283 transitions, 2169 flow [2022-11-20 12:40:04,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:04,353 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:40:04,353 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:40:04,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-20 12:40:04,353 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-20 12:40:04,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:40:04,353 INFO L85 PathProgramCache]: Analyzing trace with hash -153720776, now seen corresponding path program 12 times [2022-11-20 12:40:04,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:40:04,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260538528] [2022-11-20 12:40:04,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:40:04,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:40:04,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:05,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:40:05,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:40:05,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260538528] [2022-11-20 12:40:05,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260538528] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:40:05,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:40:05,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 12:40:05,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124409565] [2022-11-20 12:40:05,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:40:05,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 12:40:05,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:40:05,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 12:40:05,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:40:05,616 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-20 12:40:05,617 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 283 transitions, 2169 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:05,617 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:40:05,618 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-20 12:40:05,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:40:10,434 INFO L130 PetriNetUnfolder]: 4942/15353 cut-off events. [2022-11-20 12:40:10,434 INFO L131 PetriNetUnfolder]: For 52376/52453 co-relation queries the response was YES. [2022-11-20 12:40:10,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56601 conditions, 15353 events. 4942/15353 cut-off events. For 52376/52453 co-relation queries the response was YES. Maximal size of possible extension queue 684. Compared 169652 event pairs, 1677 based on Foata normal form. 37/15265 useless extension candidates. Maximal degree in co-relation 56511. Up to 3197 conditions per place. [2022-11-20 12:40:10,635 INFO L137 encePairwiseOnDemand]: 102/115 looper letters, 1045 selfloop transitions, 19 changer transitions 32/1159 dead transitions. [2022-11-20 12:40:10,635 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 1159 transitions, 11455 flow [2022-11-20 12:40:10,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 12:40:10,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-20 12:40:10,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1005 transitions. [2022-11-20 12:40:10,639 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7944664031620553 [2022-11-20 12:40:10,639 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1005 transitions. [2022-11-20 12:40:10,639 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1005 transitions. [2022-11-20 12:40:10,640 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:40:10,640 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1005 transitions. [2022-11-20 12:40:10,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 91.36363636363636) internal successors, (1005), 11 states have internal predecessors, (1005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:10,647 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:10,647 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:10,648 INFO L175 Difference]: Start difference. First operand has 237 places, 283 transitions, 2169 flow. Second operand 11 states and 1005 transitions. [2022-11-20 12:40:10,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 1159 transitions, 11455 flow [2022-11-20 12:40:11,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 1159 transitions, 11317 flow, removed 22 selfloop flow, removed 10 redundant places. [2022-11-20 12:40:11,057 INFO L231 Difference]: Finished difference. Result has 240 places, 289 transitions, 2214 flow [2022-11-20 12:40:11,058 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=2057, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2214, PETRI_PLACES=240, PETRI_TRANSITIONS=289} [2022-11-20 12:40:11,058 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 122 predicate places. [2022-11-20 12:40:11,058 INFO L495 AbstractCegarLoop]: Abstraction has has 240 places, 289 transitions, 2214 flow [2022-11-20 12:40:11,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:11,059 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:40:11,059 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:40:11,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-20 12:40:11,060 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-20 12:40:11,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:40:11,060 INFO L85 PathProgramCache]: Analyzing trace with hash 2002622261, now seen corresponding path program 1 times [2022-11-20 12:40:11,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:40:11,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036866112] [2022-11-20 12:40:11,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:40:11,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:40:11,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:12,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:40:12,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:40:12,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036866112] [2022-11-20 12:40:12,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036866112] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:40:12,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:40:12,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 12:40:12,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667242637] [2022-11-20 12:40:12,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:40:12,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 12:40:12,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:40:12,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 12:40:12,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:40:12,360 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-20 12:40:12,362 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 289 transitions, 2214 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:12,362 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:40:12,362 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-20 12:40:12,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:40:16,824 INFO L130 PetriNetUnfolder]: 4941/15374 cut-off events. [2022-11-20 12:40:16,824 INFO L131 PetriNetUnfolder]: For 47044/47122 co-relation queries the response was YES. [2022-11-20 12:40:16,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56129 conditions, 15374 events. 4941/15374 cut-off events. For 47044/47122 co-relation queries the response was YES. Maximal size of possible extension queue 684. Compared 170199 event pairs, 1637 based on Foata normal form. 30/15287 useless extension candidates. Maximal degree in co-relation 56040. Up to 4943 conditions per place. [2022-11-20 12:40:17,295 INFO L137 encePairwiseOnDemand]: 102/115 looper letters, 578 selfloop transitions, 23 changer transitions 59/723 dead transitions. [2022-11-20 12:40:17,295 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 723 transitions, 7015 flow [2022-11-20 12:40:17,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 12:40:17,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-20 12:40:17,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 947 transitions. [2022-11-20 12:40:17,302 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7486166007905138 [2022-11-20 12:40:17,303 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 947 transitions. [2022-11-20 12:40:17,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 947 transitions. [2022-11-20 12:40:17,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:40:17,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 947 transitions. [2022-11-20 12:40:17,307 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 86.0909090909091) internal successors, (947), 11 states have internal predecessors, (947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:17,310 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:17,310 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:17,311 INFO L175 Difference]: Start difference. First operand has 240 places, 289 transitions, 2214 flow. Second operand 11 states and 947 transitions. [2022-11-20 12:40:17,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 723 transitions, 7015 flow [2022-11-20 12:40:17,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 723 transitions, 6968 flow, removed 12 selfloop flow, removed 5 redundant places. [2022-11-20 12:40:17,692 INFO L231 Difference]: Finished difference. Result has 250 places, 294 transitions, 2329 flow [2022-11-20 12:40:17,692 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=2168, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2329, PETRI_PLACES=250, PETRI_TRANSITIONS=294} [2022-11-20 12:40:17,692 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 132 predicate places. [2022-11-20 12:40:17,693 INFO L495 AbstractCegarLoop]: Abstraction has has 250 places, 294 transitions, 2329 flow [2022-11-20 12:40:17,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:17,693 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:40:17,693 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:40:17,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-20 12:40:17,694 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-20 12:40:17,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:40:17,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1655173961, now seen corresponding path program 2 times [2022-11-20 12:40:17,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:40:17,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757441515] [2022-11-20 12:40:17,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:40:17,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:40:17,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:18,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:40:18,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:40:18,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757441515] [2022-11-20 12:40:18,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757441515] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:40:18,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:40:18,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 12:40:18,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191978655] [2022-11-20 12:40:18,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:40:18,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 12:40:18,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:40:18,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 12:40:18,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:40:18,514 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-20 12:40:18,515 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 294 transitions, 2329 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:18,515 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:40:18,516 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-20 12:40:18,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:40:22,969 INFO L130 PetriNetUnfolder]: 4477/13948 cut-off events. [2022-11-20 12:40:22,969 INFO L131 PetriNetUnfolder]: For 45135/45201 co-relation queries the response was YES. [2022-11-20 12:40:23,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51333 conditions, 13948 events. 4477/13948 cut-off events. For 45135/45201 co-relation queries the response was YES. Maximal size of possible extension queue 616. Compared 151538 event pairs, 1492 based on Foata normal form. 22/13857 useless extension candidates. Maximal degree in co-relation 51239. Up to 3903 conditions per place. [2022-11-20 12:40:23,130 INFO L137 encePairwiseOnDemand]: 104/115 looper letters, 549 selfloop transitions, 16 changer transitions 56/684 dead transitions. [2022-11-20 12:40:23,130 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 684 transitions, 6684 flow [2022-11-20 12:40:23,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 12:40:23,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-20 12:40:23,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 933 transitions. [2022-11-20 12:40:23,133 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7375494071146245 [2022-11-20 12:40:23,133 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 933 transitions. [2022-11-20 12:40:23,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 933 transitions. [2022-11-20 12:40:23,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:40:23,136 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 933 transitions. [2022-11-20 12:40:23,139 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 84.81818181818181) internal successors, (933), 11 states have internal predecessors, (933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:23,141 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:23,142 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:23,142 INFO L175 Difference]: Start difference. First operand has 250 places, 294 transitions, 2329 flow. Second operand 11 states and 933 transitions. [2022-11-20 12:40:23,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 684 transitions, 6684 flow [2022-11-20 12:40:23,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 684 transitions, 6651 flow, removed 5 selfloop flow, removed 6 redundant places. [2022-11-20 12:40:23,504 INFO L231 Difference]: Finished difference. Result has 254 places, 288 transitions, 2245 flow [2022-11-20 12:40:23,504 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=2270, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2245, PETRI_PLACES=254, PETRI_TRANSITIONS=288} [2022-11-20 12:40:23,505 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 136 predicate places. [2022-11-20 12:40:23,505 INFO L495 AbstractCegarLoop]: Abstraction has has 254 places, 288 transitions, 2245 flow [2022-11-20 12:40:23,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:23,506 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:40:23,506 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:40:23,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-20 12:40:23,506 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-20 12:40:23,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:40:23,507 INFO L85 PathProgramCache]: Analyzing trace with hash -744027233, now seen corresponding path program 3 times [2022-11-20 12:40:23,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:40:23,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554283968] [2022-11-20 12:40:23,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:40:23,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:40:23,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:24,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:40:24,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:40:24,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554283968] [2022-11-20 12:40:24,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554283968] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:40:24,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:40:24,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 12:40:24,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136636993] [2022-11-20 12:40:24,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:40:24,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 12:40:24,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:40:24,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 12:40:24,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:40:24,528 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-20 12:40:24,529 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 288 transitions, 2245 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:24,529 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:40:24,529 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-20 12:40:24,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:40:29,080 INFO L130 PetriNetUnfolder]: 4449/13779 cut-off events. [2022-11-20 12:40:29,080 INFO L131 PetriNetUnfolder]: For 44967/45049 co-relation queries the response was YES. [2022-11-20 12:40:29,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50783 conditions, 13779 events. 4449/13779 cut-off events. For 44967/45049 co-relation queries the response was YES. Maximal size of possible extension queue 616. Compared 149246 event pairs, 1474 based on Foata normal form. 31/13698 useless extension candidates. Maximal degree in co-relation 50689. Up to 3197 conditions per place. [2022-11-20 12:40:29,262 INFO L137 encePairwiseOnDemand]: 102/115 looper letters, 733 selfloop transitions, 22 changer transitions 44/862 dead transitions. [2022-11-20 12:40:29,262 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 862 transitions, 8445 flow [2022-11-20 12:40:29,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 12:40:29,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-20 12:40:29,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 967 transitions. [2022-11-20 12:40:29,264 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7644268774703558 [2022-11-20 12:40:29,264 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 967 transitions. [2022-11-20 12:40:29,264 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 967 transitions. [2022-11-20 12:40:29,265 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:40:29,265 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 967 transitions. [2022-11-20 12:40:29,267 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 87.9090909090909) internal successors, (967), 11 states have internal predecessors, (967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:29,269 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:29,269 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:29,269 INFO L175 Difference]: Start difference. First operand has 254 places, 288 transitions, 2245 flow. Second operand 11 states and 967 transitions. [2022-11-20 12:40:29,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 862 transitions, 8445 flow [2022-11-20 12:40:29,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 862 transitions, 8324 flow, removed 28 selfloop flow, removed 15 redundant places. [2022-11-20 12:40:29,560 INFO L231 Difference]: Finished difference. Result has 247 places, 290 transitions, 2257 flow [2022-11-20 12:40:29,561 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=2158, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2257, PETRI_PLACES=247, PETRI_TRANSITIONS=290} [2022-11-20 12:40:29,561 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 129 predicate places. [2022-11-20 12:40:29,561 INFO L495 AbstractCegarLoop]: Abstraction has has 247 places, 290 transitions, 2257 flow [2022-11-20 12:40:29,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:29,561 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:40:29,561 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:40:29,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-20 12:40:29,562 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-20 12:40:29,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:40:29,563 INFO L85 PathProgramCache]: Analyzing trace with hash 80592799, now seen corresponding path program 4 times [2022-11-20 12:40:29,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:40:29,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12417888] [2022-11-20 12:40:29,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:40:29,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:40:29,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:30,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:40:30,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:40:30,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12417888] [2022-11-20 12:40:30,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12417888] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:40:30,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:40:30,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 12:40:30,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094296260] [2022-11-20 12:40:30,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:40:30,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 12:40:30,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:40:30,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 12:40:30,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:40:30,161 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-20 12:40:30,162 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 290 transitions, 2257 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:30,162 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:40:30,162 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-20 12:40:30,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:40:34,001 INFO L130 PetriNetUnfolder]: 3983/12457 cut-off events. [2022-11-20 12:40:34,002 INFO L131 PetriNetUnfolder]: For 38862/38919 co-relation queries the response was YES. [2022-11-20 12:40:34,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45437 conditions, 12457 events. 3983/12457 cut-off events. For 38862/38919 co-relation queries the response was YES. Maximal size of possible extension queue 548. Compared 132640 event pairs, 1426 based on Foata normal form. 22/12378 useless extension candidates. Maximal degree in co-relation 45347. Up to 3197 conditions per place. [2022-11-20 12:40:34,185 INFO L137 encePairwiseOnDemand]: 102/115 looper letters, 719 selfloop transitions, 18 changer transitions 59/859 dead transitions. [2022-11-20 12:40:34,185 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 859 transitions, 8363 flow [2022-11-20 12:40:34,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 12:40:34,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-20 12:40:34,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 967 transitions. [2022-11-20 12:40:34,189 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7644268774703558 [2022-11-20 12:40:34,190 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 967 transitions. [2022-11-20 12:40:34,190 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 967 transitions. [2022-11-20 12:40:34,191 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:40:34,191 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 967 transitions. [2022-11-20 12:40:34,194 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 87.9090909090909) internal successors, (967), 11 states have internal predecessors, (967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:34,196 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:34,196 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:34,197 INFO L175 Difference]: Start difference. First operand has 247 places, 290 transitions, 2257 flow. Second operand 11 states and 967 transitions. [2022-11-20 12:40:34,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 859 transitions, 8363 flow [2022-11-20 12:40:34,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 859 transitions, 8328 flow, removed 4 selfloop flow, removed 7 redundant places. [2022-11-20 12:40:34,489 INFO L231 Difference]: Finished difference. Result has 249 places, 286 transitions, 2188 flow [2022-11-20 12:40:34,490 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=2186, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=270, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2188, PETRI_PLACES=249, PETRI_TRANSITIONS=286} [2022-11-20 12:40:34,491 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 131 predicate places. [2022-11-20 12:40:34,491 INFO L495 AbstractCegarLoop]: Abstraction has has 249 places, 286 transitions, 2188 flow [2022-11-20 12:40:34,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:34,492 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:40:34,492 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:40:34,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-20 12:40:34,493 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-20 12:40:34,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:40:34,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1139326009, now seen corresponding path program 5 times [2022-11-20 12:40:34,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:40:34,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928918870] [2022-11-20 12:40:34,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:40:34,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:40:34,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:35,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:40:35,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:40:35,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928918870] [2022-11-20 12:40:35,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928918870] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:40:35,615 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:40:35,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 12:40:35,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764896575] [2022-11-20 12:40:35,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:40:35,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 12:40:35,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:40:35,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 12:40:35,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:40:35,617 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-20 12:40:35,619 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 286 transitions, 2188 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:35,619 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:40:35,619 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-20 12:40:35,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:40:38,581 INFO L130 PetriNetUnfolder]: 3504/11024 cut-off events. [2022-11-20 12:40:38,581 INFO L131 PetriNetUnfolder]: For 33029/33070 co-relation queries the response was YES. [2022-11-20 12:40:38,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39929 conditions, 11024 events. 3504/11024 cut-off events. For 33029/33070 co-relation queries the response was YES. Maximal size of possible extension queue 480. Compared 114632 event pairs, 1376 based on Foata normal form. 32/10966 useless extension candidates. Maximal degree in co-relation 39840. Up to 3197 conditions per place. [2022-11-20 12:40:38,730 INFO L137 encePairwiseOnDemand]: 104/115 looper letters, 528 selfloop transitions, 12 changer transitions 71/674 dead transitions. [2022-11-20 12:40:38,731 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 674 transitions, 6487 flow [2022-11-20 12:40:38,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 12:40:38,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-20 12:40:38,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 933 transitions. [2022-11-20 12:40:38,733 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7375494071146245 [2022-11-20 12:40:38,734 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 933 transitions. [2022-11-20 12:40:38,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 933 transitions. [2022-11-20 12:40:38,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:40:38,735 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 933 transitions. [2022-11-20 12:40:38,737 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 84.81818181818181) internal successors, (933), 11 states have internal predecessors, (933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:38,739 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:38,740 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:38,740 INFO L175 Difference]: Start difference. First operand has 249 places, 286 transitions, 2188 flow. Second operand 11 states and 933 transitions. [2022-11-20 12:40:38,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 674 transitions, 6487 flow [2022-11-20 12:40:38,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 674 transitions, 6393 flow, removed 18 selfloop flow, removed 12 redundant places. [2022-11-20 12:40:38,986 INFO L231 Difference]: Finished difference. Result has 244 places, 278 transitions, 2013 flow [2022-11-20 12:40:38,987 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=2072, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=272, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2013, PETRI_PLACES=244, PETRI_TRANSITIONS=278} [2022-11-20 12:40:38,988 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 126 predicate places. [2022-11-20 12:40:38,988 INFO L495 AbstractCegarLoop]: Abstraction has has 244 places, 278 transitions, 2013 flow [2022-11-20 12:40:38,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:38,988 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:40:38,989 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:40:38,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-20 12:40:38,989 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-20 12:40:38,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:40:38,990 INFO L85 PathProgramCache]: Analyzing trace with hash 139278361, now seen corresponding path program 6 times [2022-11-20 12:40:38,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:40:38,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074660515] [2022-11-20 12:40:38,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:40:38,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:40:39,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:40,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:40:40,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:40:40,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074660515] [2022-11-20 12:40:40,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074660515] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:40:40,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:40:40,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 12:40:40,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978973831] [2022-11-20 12:40:40,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:40:40,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 12:40:40,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:40:40,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 12:40:40,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:40:40,262 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-20 12:40:40,263 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 278 transitions, 2013 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:40,263 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:40:40,263 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-20 12:40:40,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:40:43,322 INFO L130 PetriNetUnfolder]: 3052/9433 cut-off events. [2022-11-20 12:40:43,322 INFO L131 PetriNetUnfolder]: For 24680/24718 co-relation queries the response was YES. [2022-11-20 12:40:43,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34116 conditions, 9433 events. 3052/9433 cut-off events. For 24680/24718 co-relation queries the response was YES. Maximal size of possible extension queue 412. Compared 94489 event pairs, 971 based on Foata normal form. 20/9382 useless extension candidates. Maximal degree in co-relation 34057. Up to 3197 conditions per place. [2022-11-20 12:40:43,439 INFO L137 encePairwiseOnDemand]: 104/115 looper letters, 380 selfloop transitions, 12 changer transitions 70/525 dead transitions. [2022-11-20 12:40:43,440 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 525 transitions, 4830 flow [2022-11-20 12:40:43,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 12:40:43,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-20 12:40:43,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 912 transitions. [2022-11-20 12:40:43,443 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7209486166007905 [2022-11-20 12:40:43,443 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 912 transitions. [2022-11-20 12:40:43,444 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 912 transitions. [2022-11-20 12:40:43,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:40:43,445 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 912 transitions. [2022-11-20 12:40:43,447 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 82.9090909090909) internal successors, (912), 11 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:43,450 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:43,451 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:43,451 INFO L175 Difference]: Start difference. First operand has 244 places, 278 transitions, 2013 flow. Second operand 11 states and 912 transitions. [2022-11-20 12:40:43,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 525 transitions, 4830 flow [2022-11-20 12:40:43,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 525 transitions, 4788 flow, removed 5 selfloop flow, removed 11 redundant places. [2022-11-20 12:40:43,665 INFO L231 Difference]: Finished difference. Result has 233 places, 273 transitions, 1931 flow [2022-11-20 12:40:43,666 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1943, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1931, PETRI_PLACES=233, PETRI_TRANSITIONS=273} [2022-11-20 12:40:43,667 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 115 predicate places. [2022-11-20 12:40:43,667 INFO L495 AbstractCegarLoop]: Abstraction has has 233 places, 273 transitions, 1931 flow [2022-11-20 12:40:43,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:43,667 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:40:43,668 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:40:43,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-20 12:40:43,668 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-20 12:40:43,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:40:43,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1989410611, now seen corresponding path program 7 times [2022-11-20 12:40:43,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:40:43,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369371896] [2022-11-20 12:40:43,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:40:43,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:40:43,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:44,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:40:44,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:40:44,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369371896] [2022-11-20 12:40:44,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369371896] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:40:44,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:40:44,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 12:40:44,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409622439] [2022-11-20 12:40:44,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:40:44,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 12:40:44,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:40:44,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 12:40:44,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:40:44,427 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-20 12:40:44,428 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 273 transitions, 1931 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:44,428 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:40:44,429 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-20 12:40:44,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:40:47,325 INFO L130 PetriNetUnfolder]: 3038/9479 cut-off events. [2022-11-20 12:40:47,325 INFO L131 PetriNetUnfolder]: For 24711/24748 co-relation queries the response was YES. [2022-11-20 12:40:47,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33956 conditions, 9479 events. 3038/9479 cut-off events. For 24711/24748 co-relation queries the response was YES. Maximal size of possible extension queue 412. Compared 95290 event pairs, 1089 based on Foata normal form. 32/9439 useless extension candidates. Maximal degree in co-relation 33901. Up to 3197 conditions per place. [2022-11-20 12:40:47,435 INFO L137 encePairwiseOnDemand]: 104/115 looper letters, 537 selfloop transitions, 13 changer transitions 54/667 dead transitions. [2022-11-20 12:40:47,435 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 667 transitions, 6267 flow [2022-11-20 12:40:47,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 12:40:47,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-20 12:40:47,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 931 transitions. [2022-11-20 12:40:47,438 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7359683794466403 [2022-11-20 12:40:47,438 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 931 transitions. [2022-11-20 12:40:47,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 931 transitions. [2022-11-20 12:40:47,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:40:47,439 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 931 transitions. [2022-11-20 12:40:47,441 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 84.63636363636364) internal successors, (931), 11 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:47,444 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:47,444 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:47,444 INFO L175 Difference]: Start difference. First operand has 233 places, 273 transitions, 1931 flow. Second operand 11 states and 931 transitions. [2022-11-20 12:40:47,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 667 transitions, 6267 flow [2022-11-20 12:40:47,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 667 transitions, 6206 flow, removed 13 selfloop flow, removed 10 redundant places. [2022-11-20 12:40:47,649 INFO L231 Difference]: Finished difference. Result has 230 places, 273 transitions, 1926 flow [2022-11-20 12:40:47,649 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1889, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=260, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1926, PETRI_PLACES=230, PETRI_TRANSITIONS=273} [2022-11-20 12:40:47,650 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 112 predicate places. [2022-11-20 12:40:47,650 INFO L495 AbstractCegarLoop]: Abstraction has has 230 places, 273 transitions, 1926 flow [2022-11-20 12:40:47,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:47,651 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:40:47,651 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:40:47,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-20 12:40:47,652 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-20 12:40:47,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:40:47,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1310882627, now seen corresponding path program 8 times [2022-11-20 12:40:47,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:40:47,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201716612] [2022-11-20 12:40:47,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:40:47,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:40:47,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:48,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:40:48,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:40:48,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201716612] [2022-11-20 12:40:48,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201716612] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:40:48,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:40:48,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 12:40:48,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372442337] [2022-11-20 12:40:48,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:40:48,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 12:40:48,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:40:48,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 12:40:48,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:40:48,283 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-20 12:40:48,284 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 273 transitions, 1926 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:48,284 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:40:48,285 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-20 12:40:48,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:40:51,072 INFO L130 PetriNetUnfolder]: 3037/9419 cut-off events. [2022-11-20 12:40:51,073 INFO L131 PetriNetUnfolder]: For 24269/24307 co-relation queries the response was YES. [2022-11-20 12:40:51,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33703 conditions, 9419 events. 3037/9419 cut-off events. For 24269/24307 co-relation queries the response was YES. Maximal size of possible extension queue 412. Compared 94374 event pairs, 1064 based on Foata normal form. 21/9367 useless extension candidates. Maximal degree in co-relation 33649. Up to 3197 conditions per place. [2022-11-20 12:40:51,190 INFO L137 encePairwiseOnDemand]: 102/115 looper letters, 550 selfloop transitions, 16 changer transitions 72/701 dead transitions. [2022-11-20 12:40:51,191 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 701 transitions, 6559 flow [2022-11-20 12:40:51,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 12:40:51,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-20 12:40:51,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 946 transitions. [2022-11-20 12:40:51,194 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7478260869565218 [2022-11-20 12:40:51,194 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 946 transitions. [2022-11-20 12:40:51,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 946 transitions. [2022-11-20 12:40:51,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:40:51,195 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 946 transitions. [2022-11-20 12:40:51,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 86.0) internal successors, (946), 11 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:51,200 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:51,201 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:51,201 INFO L175 Difference]: Start difference. First operand has 230 places, 273 transitions, 1926 flow. Second operand 11 states and 946 transitions. [2022-11-20 12:40:51,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 701 transitions, 6559 flow [2022-11-20 12:40:51,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 701 transitions, 6503 flow, removed 12 selfloop flow, removed 10 redundant places. [2022-11-20 12:40:51,439 INFO L231 Difference]: Finished difference. Result has 232 places, 275 transitions, 1959 flow [2022-11-20 12:40:51,439 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1888, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1959, PETRI_PLACES=232, PETRI_TRANSITIONS=275} [2022-11-20 12:40:51,439 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 114 predicate places. [2022-11-20 12:40:51,440 INFO L495 AbstractCegarLoop]: Abstraction has has 232 places, 275 transitions, 1959 flow [2022-11-20 12:40:51,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:51,440 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:40:51,440 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:40:51,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-20 12:40:51,440 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-20 12:40:51,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:40:51,441 INFO L85 PathProgramCache]: Analyzing trace with hash 268979899, now seen corresponding path program 9 times [2022-11-20 12:40:51,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:40:51,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577693815] [2022-11-20 12:40:51,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:40:51,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:40:51,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:52,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:40:52,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:40:52,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577693815] [2022-11-20 12:40:52,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577693815] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:40:52,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:40:52,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 12:40:52,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80944110] [2022-11-20 12:40:52,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:40:52,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 12:40:52,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:40:52,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 12:40:52,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:40:52,448 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-20 12:40:52,449 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 275 transitions, 1959 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:52,449 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:40:52,449 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-20 12:40:52,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:40:54,933 INFO L130 PetriNetUnfolder]: 2558/8054 cut-off events. [2022-11-20 12:40:54,933 INFO L131 PetriNetUnfolder]: For 20430/20459 co-relation queries the response was YES. [2022-11-20 12:40:55,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28634 conditions, 8054 events. 2558/8054 cut-off events. For 20430/20459 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 78102 event pairs, 1014 based on Foata normal form. 31/8023 useless extension candidates. Maximal degree in co-relation 28579. Up to 3197 conditions per place. [2022-11-20 12:40:55,027 INFO L137 encePairwiseOnDemand]: 104/115 looper letters, 358 selfloop transitions, 10 changer transitions 86/517 dead transitions. [2022-11-20 12:40:55,027 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 517 transitions, 4728 flow [2022-11-20 12:40:55,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 12:40:55,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-20 12:40:55,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 912 transitions. [2022-11-20 12:40:55,030 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7209486166007905 [2022-11-20 12:40:55,031 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 912 transitions. [2022-11-20 12:40:55,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 912 transitions. [2022-11-20 12:40:55,031 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:40:55,031 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 912 transitions. [2022-11-20 12:40:55,033 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 82.9090909090909) internal successors, (912), 11 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:55,034 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:55,035 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:55,035 INFO L175 Difference]: Start difference. First operand has 232 places, 275 transitions, 1959 flow. Second operand 11 states and 912 transitions. [2022-11-20 12:40:55,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 517 transitions, 4728 flow [2022-11-20 12:40:55,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 517 transitions, 4701 flow, removed 2 selfloop flow, removed 7 redundant places. [2022-11-20 12:40:55,252 INFO L231 Difference]: Finished difference. Result has 234 places, 267 transitions, 1848 flow [2022-11-20 12:40:55,253 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1904, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1848, PETRI_PLACES=234, PETRI_TRANSITIONS=267} [2022-11-20 12:40:55,254 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 116 predicate places. [2022-11-20 12:40:55,254 INFO L495 AbstractCegarLoop]: Abstraction has has 234 places, 267 transitions, 1848 flow [2022-11-20 12:40:55,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:55,254 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:40:55,255 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:40:55,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-20 12:40:55,255 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-20 12:40:55,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:40:55,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1242566541, now seen corresponding path program 10 times [2022-11-20 12:40:55,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:40:55,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473804038] [2022-11-20 12:40:55,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:40:55,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:40:55,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:56,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:40:56,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:40:56,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473804038] [2022-11-20 12:40:56,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473804038] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:40:56,374 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:40:56,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 12:40:56,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421012112] [2022-11-20 12:40:56,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:40:56,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 12:40:56,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:40:56,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 12:40:56,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:40:56,378 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-20 12:40:56,379 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 267 transitions, 1848 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:40:56,379 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:40:56,379 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-20 12:40:56,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand