./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a517e58-014a-4a3b-b522-a60d84d2fe87/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a517e58-014a-4a3b-b522-a60d84d2fe87/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a517e58-014a-4a3b-b522-a60d84d2fe87/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a517e58-014a-4a3b-b522-a60d84d2fe87/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a517e58-014a-4a3b-b522-a60d84d2fe87/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a517e58-014a-4a3b-b522-a60d84d2fe87/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9ceec73f9e554c485344f34d2b1865bfa0707ac614302bf3f054f6fb35398f61 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:42:44,694 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:42:44,696 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:42:44,719 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:42:44,720 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:42:44,721 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:42:44,722 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:42:44,724 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:42:44,726 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:42:44,727 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:42:44,728 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:42:44,729 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:42:44,730 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:42:44,731 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:42:44,732 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:42:44,733 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:42:44,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:42:44,735 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:42:44,737 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:42:44,740 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:42:44,741 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:42:44,747 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:42:44,748 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:42:44,749 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:42:44,753 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:42:44,753 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:42:44,754 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:42:44,755 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:42:44,755 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:42:44,756 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:42:44,757 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:42:44,758 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:42:44,759 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:42:44,770 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:42:44,771 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:42:44,771 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:42:44,772 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:42:44,772 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:42:44,773 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:42:44,774 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:42:44,774 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:42:44,780 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a517e58-014a-4a3b-b522-a60d84d2fe87/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 12:42:44,817 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:42:44,822 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:42:44,823 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:42:44,823 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:42:44,825 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:42:44,825 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:42:44,826 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:42:44,826 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:42:44,826 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:42:44,826 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:42:44,828 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:42:44,828 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:42:44,828 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:42:44,828 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:42:44,828 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:42:44,829 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:42:44,829 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:42:44,829 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:42:44,829 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 12:42:44,829 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:42:44,830 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:42:44,830 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:42:44,830 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:42:44,830 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:42:44,831 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:42:44,831 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:42:44,832 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:42:44,833 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:42:44,833 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:42:44,833 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:42:44,834 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:42:44,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:42:44,835 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:42:44,835 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:42:44,835 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:42:44,836 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_2a517e58-014a-4a3b-b522-a60d84d2fe87/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a517e58-014a-4a3b-b522-a60d84d2fe87/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ceec73f9e554c485344f34d2b1865bfa0707ac614302bf3f054f6fb35398f61 [2022-11-16 12:42:45,173 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:42:45,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:42:45,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:42:45,214 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:42:45,215 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:42:45,216 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a517e58-014a-4a3b-b522-a60d84d2fe87/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c [2022-11-16 12:42:45,298 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a517e58-014a-4a3b-b522-a60d84d2fe87/bin/uautomizer-tPACEb0tL8/data/f759a6194/77bb879f7386471f817ccb9c0a649f6d/FLAGfa1402e8a [2022-11-16 12:42:45,767 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:42:45,768 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a517e58-014a-4a3b-b522-a60d84d2fe87/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c [2022-11-16 12:42:45,776 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a517e58-014a-4a3b-b522-a60d84d2fe87/bin/uautomizer-tPACEb0tL8/data/f759a6194/77bb879f7386471f817ccb9c0a649f6d/FLAGfa1402e8a [2022-11-16 12:42:46,138 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a517e58-014a-4a3b-b522-a60d84d2fe87/bin/uautomizer-tPACEb0tL8/data/f759a6194/77bb879f7386471f817ccb9c0a649f6d [2022-11-16 12:42:46,139 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:42:46,141 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:42:46,147 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:42:46,148 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:42:46,152 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:42:46,152 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:42:46" (1/1) ... [2022-11-16 12:42:46,154 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77535844 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:42:46, skipping insertion in model container [2022-11-16 12:42:46,154 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:42:46" (1/1) ... [2022-11-16 12:42:46,164 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:42:46,197 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:42:46,461 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a517e58-014a-4a3b-b522-a60d84d2fe87/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c[4293,4306] [2022-11-16 12:42:46,470 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:42:46,478 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:42:46,545 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a517e58-014a-4a3b-b522-a60d84d2fe87/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c[4293,4306] [2022-11-16 12:42:46,552 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:42:46,583 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:42:46,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:42:46 WrapperNode [2022-11-16 12:42:46,584 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:42:46,586 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:42:46,586 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:42:46,587 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:42:46,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:42:46" (1/1) ... [2022-11-16 12:42:46,628 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:42:46" (1/1) ... [2022-11-16 12:42:46,677 INFO L138 Inliner]: procedures = 26, calls = 79, calls flagged for inlining = 17, calls inlined = 21, statements flattened = 645 [2022-11-16 12:42:46,677 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:42:46,678 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:42:46,678 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:42:46,678 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:42:46,688 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:42:46" (1/1) ... [2022-11-16 12:42:46,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:42:46" (1/1) ... [2022-11-16 12:42:46,695 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:42:46" (1/1) ... [2022-11-16 12:42:46,695 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:42:46" (1/1) ... [2022-11-16 12:42:46,715 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:42:46" (1/1) ... [2022-11-16 12:42:46,723 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:42:46" (1/1) ... [2022-11-16 12:42:46,726 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:42:46" (1/1) ... [2022-11-16 12:42:46,729 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:42:46" (1/1) ... [2022-11-16 12:42:46,734 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:42:46,735 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:42:46,735 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:42:46,735 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:42:46,737 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:42:46" (1/1) ... [2022-11-16 12:42:46,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:42:46,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a517e58-014a-4a3b-b522-a60d84d2fe87/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:42:46,813 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a517e58-014a-4a3b-b522-a60d84d2fe87/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:42:46,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a517e58-014a-4a3b-b522-a60d84d2fe87/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:42:46,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:42:46,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:42:46,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:42:46,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:42:46,879 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 12:42:46,881 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 12:42:46,881 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 12:42:46,881 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 12:42:46,881 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-16 12:42:46,882 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-16 12:42:46,882 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-16 12:42:46,882 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-16 12:42:46,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:42:46,882 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 12:42:46,882 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 12:42:46,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 12:42:46,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:42:46,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:42:46,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:42:46,885 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:42:47,029 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:42:47,042 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:42:48,259 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:42:49,040 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:42:49,040 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-16 12:42:49,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:42:49 BoogieIcfgContainer [2022-11-16 12:42:49,043 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:42:49,045 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:42:49,045 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:42:49,049 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:42:49,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:42:46" (1/3) ... [2022-11-16 12:42:49,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f11d684 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:42:49, skipping insertion in model container [2022-11-16 12:42:49,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:42:46" (2/3) ... [2022-11-16 12:42:49,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f11d684 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:42:49, skipping insertion in model container [2022-11-16 12:42:49,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:42:49" (3/3) ... [2022-11-16 12:42:49,054 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-buffer-mult-alt.wvr.c [2022-11-16 12:42:49,069 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:42:49,080 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:42:49,080 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 99 error locations. [2022-11-16 12:42:49,080 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:42:49,329 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-16 12:42:49,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 457 places, 467 transitions, 966 flow [2022-11-16 12:42:49,553 INFO L130 PetriNetUnfolder]: 23/463 cut-off events. [2022-11-16 12:42:49,553 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-16 12:42:49,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 480 conditions, 463 events. 23/463 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 610 event pairs, 0 based on Foata normal form. 0/341 useless extension candidates. Maximal degree in co-relation 378. Up to 2 conditions per place. [2022-11-16 12:42:49,562 INFO L82 GeneralOperation]: Start removeDead. Operand has 457 places, 467 transitions, 966 flow [2022-11-16 12:42:49,574 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 432 places, 441 transitions, 906 flow [2022-11-16 12:42:49,598 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:42:49,608 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;@78ab0429, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:42:49,608 INFO L358 AbstractCegarLoop]: Starting to check reachability of 173 error locations. [2022-11-16 12:42:49,623 INFO L130 PetriNetUnfolder]: 0/34 cut-off events. [2022-11-16 12:42:49,623 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:42:49,624 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:42:49,625 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] [2022-11-16 12:42:49,626 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-16 12:42:49,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:42:49,633 INFO L85 PathProgramCache]: Analyzing trace with hash 365661302, now seen corresponding path program 1 times [2022-11-16 12:42:49,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:42:49,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716769026] [2022-11-16 12:42:49,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:42:49,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:42:49,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:49,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:42:49,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:42:49,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716769026] [2022-11-16 12:42:49,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716769026] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:42:49,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:42:49,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:42:49,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290791122] [2022-11-16 12:42:49,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:42:49,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:42:49,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:42:49,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:42:50,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:42:50,009 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 349 out of 467 [2022-11-16 12:42:50,020 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 441 transitions, 906 flow. Second operand has 3 states, 3 states have (on average 350.3333333333333) internal successors, (1051), 3 states have internal predecessors, (1051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:50,020 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:42:50,020 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 349 of 467 [2022-11-16 12:42:50,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:42:51,216 INFO L130 PetriNetUnfolder]: 748/1795 cut-off events. [2022-11-16 12:42:51,216 INFO L131 PetriNetUnfolder]: For 314/420 co-relation queries the response was YES. [2022-11-16 12:42:51,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3002 conditions, 1795 events. 748/1795 cut-off events. For 314/420 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9172 event pairs, 485 based on Foata normal form. 265/1823 useless extension candidates. Maximal degree in co-relation 2559. Up to 1013 conditions per place. [2022-11-16 12:42:51,242 INFO L137 encePairwiseOnDemand]: 382/467 looper letters, 31 selfloop transitions, 2 changer transitions 6/358 dead transitions. [2022-11-16 12:42:51,242 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 358 transitions, 806 flow [2022-11-16 12:42:51,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:42:51,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:42:51,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1163 transitions. [2022-11-16 12:42:51,267 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8301213418986438 [2022-11-16 12:42:51,268 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1163 transitions. [2022-11-16 12:42:51,270 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1163 transitions. [2022-11-16 12:42:51,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:42:51,276 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1163 transitions. [2022-11-16 12:42:51,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 387.6666666666667) internal successors, (1163), 3 states have internal predecessors, (1163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:51,293 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:51,294 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:51,297 INFO L175 Difference]: Start difference. First operand has 432 places, 441 transitions, 906 flow. Second operand 3 states and 1163 transitions. [2022-11-16 12:42:51,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 358 transitions, 806 flow [2022-11-16 12:42:51,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 355 places, 358 transitions, 790 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-11-16 12:42:51,322 INFO L231 Difference]: Finished difference. Result has 355 places, 352 transitions, 716 flow [2022-11-16 12:42:51,325 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=724, PETRI_DIFFERENCE_MINUEND_PLACES=353, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=356, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=716, PETRI_PLACES=355, PETRI_TRANSITIONS=352} [2022-11-16 12:42:51,330 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -77 predicate places. [2022-11-16 12:42:51,331 INFO L495 AbstractCegarLoop]: Abstraction has has 355 places, 352 transitions, 716 flow [2022-11-16 12:42:51,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 350.3333333333333) internal successors, (1051), 3 states have internal predecessors, (1051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:51,332 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:42:51,332 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:42:51,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:42:51,333 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-16 12:42:51,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:42:51,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1773310764, now seen corresponding path program 1 times [2022-11-16 12:42:51,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:42:51,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993893021] [2022-11-16 12:42:51,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:42:51,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:42:51,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:51,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:42:51,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:42:51,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993893021] [2022-11-16 12:42:51,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993893021] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:42:51,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:42:51,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:42:51,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126443426] [2022-11-16 12:42:51,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:42:51,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:42:51,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:42:51,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:42:51,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:42:51,482 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 349 out of 467 [2022-11-16 12:42:51,483 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 355 places, 352 transitions, 716 flow. Second operand has 3 states, 3 states have (on average 350.3333333333333) internal successors, (1051), 3 states have internal predecessors, (1051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:51,484 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:42:51,484 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 349 of 467 [2022-11-16 12:42:51,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:42:52,296 INFO L130 PetriNetUnfolder]: 748/1788 cut-off events. [2022-11-16 12:42:52,296 INFO L131 PetriNetUnfolder]: For 49/155 co-relation queries the response was YES. [2022-11-16 12:42:52,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2876 conditions, 1788 events. 748/1788 cut-off events. For 49/155 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9206 event pairs, 485 based on Foata normal form. 0/1558 useless extension candidates. Maximal degree in co-relation 2833. Up to 1013 conditions per place. [2022-11-16 12:42:52,312 INFO L137 encePairwiseOnDemand]: 464/467 looper letters, 31 selfloop transitions, 2 changer transitions 0/351 dead transitions. [2022-11-16 12:42:52,313 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 350 places, 351 transitions, 780 flow [2022-11-16 12:42:52,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:42:52,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:42:52,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1081 transitions. [2022-11-16 12:42:52,316 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7715917201998572 [2022-11-16 12:42:52,317 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1081 transitions. [2022-11-16 12:42:52,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1081 transitions. [2022-11-16 12:42:52,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:42:52,318 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1081 transitions. [2022-11-16 12:42:52,321 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 360.3333333333333) internal successors, (1081), 3 states have internal predecessors, (1081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:52,325 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:52,327 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:52,327 INFO L175 Difference]: Start difference. First operand has 355 places, 352 transitions, 716 flow. Second operand 3 states and 1081 transitions. [2022-11-16 12:42:52,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 350 places, 351 transitions, 780 flow [2022-11-16 12:42:52,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 348 places, 351 transitions, 776 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:42:52,336 INFO L231 Difference]: Finished difference. Result has 348 places, 351 transitions, 714 flow [2022-11-16 12:42:52,337 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=710, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=714, PETRI_PLACES=348, PETRI_TRANSITIONS=351} [2022-11-16 12:42:52,338 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -84 predicate places. [2022-11-16 12:42:52,338 INFO L495 AbstractCegarLoop]: Abstraction has has 348 places, 351 transitions, 714 flow [2022-11-16 12:42:52,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 350.3333333333333) internal successors, (1051), 3 states have internal predecessors, (1051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:52,340 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:42:52,340 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] [2022-11-16 12:42:52,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:42:52,341 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-16 12:42:52,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:42:52,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1201788846, now seen corresponding path program 1 times [2022-11-16 12:42:52,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:42:52,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099064993] [2022-11-16 12:42:52,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:42:52,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:42:52,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:52,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:42:52,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:42:52,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099064993] [2022-11-16 12:42:52,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099064993] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:42:52,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:42:52,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:42:52,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168176911] [2022-11-16 12:42:52,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:42:52,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:42:52,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:42:52,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:42:52,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:42:52,455 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 467 [2022-11-16 12:42:52,457 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 351 transitions, 714 flow. Second operand has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:52,457 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:42:52,457 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 467 [2022-11-16 12:42:52,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:42:53,234 INFO L130 PetriNetUnfolder]: 748/1787 cut-off events. [2022-11-16 12:42:53,234 INFO L131 PetriNetUnfolder]: For 49/155 co-relation queries the response was YES. [2022-11-16 12:42:53,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2872 conditions, 1787 events. 748/1787 cut-off events. For 49/155 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9203 event pairs, 485 based on Foata normal form. 0/1558 useless extension candidates. Maximal degree in co-relation 2822. Up to 1010 conditions per place. [2022-11-16 12:42:53,248 INFO L137 encePairwiseOnDemand]: 464/467 looper letters, 28 selfloop transitions, 2 changer transitions 0/350 dead transitions. [2022-11-16 12:42:53,248 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 350 transitions, 772 flow [2022-11-16 12:42:53,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:42:53,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:42:53,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1087 transitions. [2022-11-16 12:42:53,252 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7758743754461099 [2022-11-16 12:42:53,253 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1087 transitions. [2022-11-16 12:42:53,253 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1087 transitions. [2022-11-16 12:42:53,254 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:42:53,254 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1087 transitions. [2022-11-16 12:42:53,257 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 362.3333333333333) internal successors, (1087), 3 states have internal predecessors, (1087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:53,261 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:53,263 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:53,263 INFO L175 Difference]: Start difference. First operand has 348 places, 351 transitions, 714 flow. Second operand 3 states and 1087 transitions. [2022-11-16 12:42:53,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 350 transitions, 772 flow [2022-11-16 12:42:53,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 350 transitions, 768 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:42:53,271 INFO L231 Difference]: Finished difference. Result has 347 places, 350 transitions, 712 flow [2022-11-16 12:42:53,271 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=708, PETRI_DIFFERENCE_MINUEND_PLACES=345, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=350, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=348, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=712, PETRI_PLACES=347, PETRI_TRANSITIONS=350} [2022-11-16 12:42:53,272 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -85 predicate places. [2022-11-16 12:42:53,273 INFO L495 AbstractCegarLoop]: Abstraction has has 347 places, 350 transitions, 712 flow [2022-11-16 12:42:53,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:53,274 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:42:53,274 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] [2022-11-16 12:42:53,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:42:53,274 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-16 12:42:53,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:42:53,275 INFO L85 PathProgramCache]: Analyzing trace with hash -286628802, now seen corresponding path program 1 times [2022-11-16 12:42:53,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:42:53,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064459744] [2022-11-16 12:42:53,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:42:53,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:42:53,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:53,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:42:53,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:42:53,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064459744] [2022-11-16 12:42:53,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064459744] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:42:53,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:42:53,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:42:53,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132331718] [2022-11-16 12:42:53,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:42:53,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:42:53,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:42:53,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:42:53,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:42:53,335 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 467 [2022-11-16 12:42:53,337 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 347 places, 350 transitions, 712 flow. Second operand has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:53,337 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:42:53,338 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 467 [2022-11-16 12:42:53,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:42:53,964 INFO L130 PetriNetUnfolder]: 748/1786 cut-off events. [2022-11-16 12:42:53,964 INFO L131 PetriNetUnfolder]: For 49/155 co-relation queries the response was YES. [2022-11-16 12:42:53,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2871 conditions, 1786 events. 748/1786 cut-off events. For 49/155 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9199 event pairs, 485 based on Foata normal form. 0/1558 useless extension candidates. Maximal degree in co-relation 2814. Up to 1010 conditions per place. [2022-11-16 12:42:53,979 INFO L137 encePairwiseOnDemand]: 464/467 looper letters, 28 selfloop transitions, 2 changer transitions 0/349 dead transitions. [2022-11-16 12:42:53,979 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 349 transitions, 770 flow [2022-11-16 12:42:53,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:42:53,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:42:53,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1087 transitions. [2022-11-16 12:42:53,983 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7758743754461099 [2022-11-16 12:42:53,983 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1087 transitions. [2022-11-16 12:42:53,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1087 transitions. [2022-11-16 12:42:53,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:42:53,984 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1087 transitions. [2022-11-16 12:42:53,987 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 362.3333333333333) internal successors, (1087), 3 states have internal predecessors, (1087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:53,990 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:53,992 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:54,000 INFO L175 Difference]: Start difference. First operand has 347 places, 350 transitions, 712 flow. Second operand 3 states and 1087 transitions. [2022-11-16 12:42:54,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 348 places, 349 transitions, 770 flow [2022-11-16 12:42:54,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 349 transitions, 766 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:42:54,007 INFO L231 Difference]: Finished difference. Result has 346 places, 349 transitions, 710 flow [2022-11-16 12:42:54,008 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=706, PETRI_DIFFERENCE_MINUEND_PLACES=344, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=349, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=710, PETRI_PLACES=346, PETRI_TRANSITIONS=349} [2022-11-16 12:42:54,009 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -86 predicate places. [2022-11-16 12:42:54,010 INFO L495 AbstractCegarLoop]: Abstraction has has 346 places, 349 transitions, 710 flow [2022-11-16 12:42:54,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:54,011 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:42:54,011 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] [2022-11-16 12:42:54,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:42:54,011 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-16 12:42:54,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:42:54,012 INFO L85 PathProgramCache]: Analyzing trace with hash 30038530, now seen corresponding path program 1 times [2022-11-16 12:42:54,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:42:54,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653455665] [2022-11-16 12:42:54,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:42:54,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:42:54,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:54,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:42:54,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:42:54,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653455665] [2022-11-16 12:42:54,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653455665] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:42:54,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:42:54,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:42:54,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95940642] [2022-11-16 12:42:54,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:42:54,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:42:54,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:42:54,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:42:54,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:42:54,076 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 467 [2022-11-16 12:42:54,078 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 346 places, 349 transitions, 710 flow. Second operand has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:54,078 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:42:54,078 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 467 [2022-11-16 12:42:54,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:42:54,717 INFO L130 PetriNetUnfolder]: 748/1785 cut-off events. [2022-11-16 12:42:54,717 INFO L131 PetriNetUnfolder]: For 49/155 co-relation queries the response was YES. [2022-11-16 12:42:54,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2870 conditions, 1785 events. 748/1785 cut-off events. For 49/155 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9202 event pairs, 485 based on Foata normal form. 0/1558 useless extension candidates. Maximal degree in co-relation 2806. Up to 1010 conditions per place. [2022-11-16 12:42:54,798 INFO L137 encePairwiseOnDemand]: 464/467 looper letters, 28 selfloop transitions, 2 changer transitions 0/348 dead transitions. [2022-11-16 12:42:54,798 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 347 places, 348 transitions, 768 flow [2022-11-16 12:42:54,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:42:54,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:42:54,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1087 transitions. [2022-11-16 12:42:54,804 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7758743754461099 [2022-11-16 12:42:54,805 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1087 transitions. [2022-11-16 12:42:54,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1087 transitions. [2022-11-16 12:42:54,806 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:42:54,806 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1087 transitions. [2022-11-16 12:42:54,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 362.3333333333333) internal successors, (1087), 3 states have internal predecessors, (1087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:54,814 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:54,815 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:54,816 INFO L175 Difference]: Start difference. First operand has 346 places, 349 transitions, 710 flow. Second operand 3 states and 1087 transitions. [2022-11-16 12:42:54,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 347 places, 348 transitions, 768 flow [2022-11-16 12:42:54,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 348 transitions, 764 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:42:54,825 INFO L231 Difference]: Finished difference. Result has 345 places, 348 transitions, 708 flow [2022-11-16 12:42:54,826 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=704, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=348, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=708, PETRI_PLACES=345, PETRI_TRANSITIONS=348} [2022-11-16 12:42:54,827 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -87 predicate places. [2022-11-16 12:42:54,827 INFO L495 AbstractCegarLoop]: Abstraction has has 345 places, 348 transitions, 708 flow [2022-11-16 12:42:54,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:54,828 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:42:54,829 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] [2022-11-16 12:42:54,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:42:54,829 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-16 12:42:54,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:42:54,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1040541063, now seen corresponding path program 1 times [2022-11-16 12:42:54,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:42:54,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7664971] [2022-11-16 12:42:54,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:42:54,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:42:54,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:54,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:42:54,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:42:54,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7664971] [2022-11-16 12:42:54,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7664971] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:42:54,899 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:42:54,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:42:54,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732014206] [2022-11-16 12:42:54,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:42:54,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:42:54,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:42:54,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:42:54,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:42:54,903 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 467 [2022-11-16 12:42:54,905 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 348 transitions, 708 flow. Second operand has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:54,906 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:42:54,906 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 467 [2022-11-16 12:42:54,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:42:55,678 INFO L130 PetriNetUnfolder]: 748/1784 cut-off events. [2022-11-16 12:42:55,679 INFO L131 PetriNetUnfolder]: For 49/155 co-relation queries the response was YES. [2022-11-16 12:42:55,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2869 conditions, 1784 events. 748/1784 cut-off events. For 49/155 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9163 event pairs, 485 based on Foata normal form. 0/1558 useless extension candidates. Maximal degree in co-relation 2798. Up to 1010 conditions per place. [2022-11-16 12:42:55,698 INFO L137 encePairwiseOnDemand]: 464/467 looper letters, 28 selfloop transitions, 2 changer transitions 0/347 dead transitions. [2022-11-16 12:42:55,698 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 347 transitions, 766 flow [2022-11-16 12:42:55,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:42:55,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:42:55,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1087 transitions. [2022-11-16 12:42:55,703 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7758743754461099 [2022-11-16 12:42:55,703 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1087 transitions. [2022-11-16 12:42:55,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1087 transitions. [2022-11-16 12:42:55,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:42:55,705 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1087 transitions. [2022-11-16 12:42:55,708 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 362.3333333333333) internal successors, (1087), 3 states have internal predecessors, (1087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:55,712 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:55,714 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:55,714 INFO L175 Difference]: Start difference. First operand has 345 places, 348 transitions, 708 flow. Second operand 3 states and 1087 transitions. [2022-11-16 12:42:55,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 347 transitions, 766 flow [2022-11-16 12:42:55,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 347 transitions, 762 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:42:55,724 INFO L231 Difference]: Finished difference. Result has 344 places, 347 transitions, 706 flow [2022-11-16 12:42:55,725 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=702, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=347, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=345, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=706, PETRI_PLACES=344, PETRI_TRANSITIONS=347} [2022-11-16 12:42:55,726 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -88 predicate places. [2022-11-16 12:42:55,726 INFO L495 AbstractCegarLoop]: Abstraction has has 344 places, 347 transitions, 706 flow [2022-11-16 12:42:55,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:55,760 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:42:55,760 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:42:55,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:42:55,761 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-16 12:42:55,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:42:55,761 INFO L85 PathProgramCache]: Analyzing trace with hash 846226134, now seen corresponding path program 1 times [2022-11-16 12:42:55,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:42:55,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036050275] [2022-11-16 12:42:55,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:42:55,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:42:55,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:55,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:42:55,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:42:55,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036050275] [2022-11-16 12:42:55,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036050275] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:42:55,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:42:55,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:42:55,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952787901] [2022-11-16 12:42:55,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:42:55,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:42:55,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:42:55,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:42:55,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:42:55,864 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 467 [2022-11-16 12:42:55,867 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 347 transitions, 706 flow. Second operand has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:55,868 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:42:55,868 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 467 [2022-11-16 12:42:55,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:42:56,481 INFO L130 PetriNetUnfolder]: 748/1783 cut-off events. [2022-11-16 12:42:56,481 INFO L131 PetriNetUnfolder]: For 49/155 co-relation queries the response was YES. [2022-11-16 12:42:56,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2868 conditions, 1783 events. 748/1783 cut-off events. For 49/155 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9183 event pairs, 485 based on Foata normal form. 0/1558 useless extension candidates. Maximal degree in co-relation 2790. Up to 1010 conditions per place. [2022-11-16 12:42:56,499 INFO L137 encePairwiseOnDemand]: 464/467 looper letters, 28 selfloop transitions, 2 changer transitions 0/346 dead transitions. [2022-11-16 12:42:56,500 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 346 transitions, 764 flow [2022-11-16 12:42:56,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:42:56,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:42:56,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1087 transitions. [2022-11-16 12:42:56,512 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7758743754461099 [2022-11-16 12:42:56,512 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1087 transitions. [2022-11-16 12:42:56,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1087 transitions. [2022-11-16 12:42:56,513 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:42:56,513 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1087 transitions. [2022-11-16 12:42:56,521 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 362.3333333333333) internal successors, (1087), 3 states have internal predecessors, (1087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:56,530 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:56,533 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:56,533 INFO L175 Difference]: Start difference. First operand has 344 places, 347 transitions, 706 flow. Second operand 3 states and 1087 transitions. [2022-11-16 12:42:56,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 346 transitions, 764 flow [2022-11-16 12:42:56,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 343 places, 346 transitions, 760 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:42:56,545 INFO L231 Difference]: Finished difference. Result has 343 places, 346 transitions, 704 flow [2022-11-16 12:42:56,546 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=700, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=346, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=704, PETRI_PLACES=343, PETRI_TRANSITIONS=346} [2022-11-16 12:42:56,547 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -89 predicate places. [2022-11-16 12:42:56,547 INFO L495 AbstractCegarLoop]: Abstraction has has 343 places, 346 transitions, 704 flow [2022-11-16 12:42:56,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:56,549 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:42:56,549 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:42:56,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:42:56,550 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-16 12:42:56,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:42:56,550 INFO L85 PathProgramCache]: Analyzing trace with hash -753122815, now seen corresponding path program 1 times [2022-11-16 12:42:56,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:42:56,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369632796] [2022-11-16 12:42:56,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:42:56,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:42:56,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:56,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:42:56,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:42:56,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369632796] [2022-11-16 12:42:56,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369632796] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:42:56,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:42:56,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:42:56,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275197442] [2022-11-16 12:42:56,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:42:56,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:42:56,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:42:56,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:42:56,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:42:56,669 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 467 [2022-11-16 12:42:56,672 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 343 places, 346 transitions, 704 flow. Second operand has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:56,673 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:42:56,673 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 467 [2022-11-16 12:42:56,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:42:57,365 INFO L130 PetriNetUnfolder]: 748/1782 cut-off events. [2022-11-16 12:42:57,365 INFO L131 PetriNetUnfolder]: For 49/155 co-relation queries the response was YES. [2022-11-16 12:42:57,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2867 conditions, 1782 events. 748/1782 cut-off events. For 49/155 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9207 event pairs, 485 based on Foata normal form. 0/1558 useless extension candidates. Maximal degree in co-relation 2782. Up to 1010 conditions per place. [2022-11-16 12:42:57,382 INFO L137 encePairwiseOnDemand]: 464/467 looper letters, 28 selfloop transitions, 2 changer transitions 0/345 dead transitions. [2022-11-16 12:42:57,382 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 344 places, 345 transitions, 762 flow [2022-11-16 12:42:57,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:42:57,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:42:57,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1087 transitions. [2022-11-16 12:42:57,385 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7758743754461099 [2022-11-16 12:42:57,386 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1087 transitions. [2022-11-16 12:42:57,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1087 transitions. [2022-11-16 12:42:57,387 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:42:57,387 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1087 transitions. [2022-11-16 12:42:57,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 362.3333333333333) internal successors, (1087), 3 states have internal predecessors, (1087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:57,393 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:57,394 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:57,394 INFO L175 Difference]: Start difference. First operand has 343 places, 346 transitions, 704 flow. Second operand 3 states and 1087 transitions. [2022-11-16 12:42:57,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 344 places, 345 transitions, 762 flow [2022-11-16 12:42:57,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 342 places, 345 transitions, 758 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:42:57,401 INFO L231 Difference]: Finished difference. Result has 342 places, 345 transitions, 702 flow [2022-11-16 12:42:57,401 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=698, PETRI_DIFFERENCE_MINUEND_PLACES=340, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=345, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=702, PETRI_PLACES=342, PETRI_TRANSITIONS=345} [2022-11-16 12:42:57,406 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -90 predicate places. [2022-11-16 12:42:57,406 INFO L495 AbstractCegarLoop]: Abstraction has has 342 places, 345 transitions, 702 flow [2022-11-16 12:42:57,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:57,407 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:42:57,407 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:42:57,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:42:57,408 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-16 12:42:57,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:42:57,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1061599239, now seen corresponding path program 1 times [2022-11-16 12:42:57,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:42:57,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566691080] [2022-11-16 12:42:57,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:42:57,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:42:57,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:57,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:42:57,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:42:57,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566691080] [2022-11-16 12:42:57,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566691080] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:42:57,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:42:57,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:42:57,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956167127] [2022-11-16 12:42:57,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:42:57,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:42:57,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:42:57,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:42:57,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:42:57,509 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 467 [2022-11-16 12:42:57,514 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 342 places, 345 transitions, 702 flow. Second operand has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:57,514 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:42:57,514 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 467 [2022-11-16 12:42:57,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:42:58,123 INFO L130 PetriNetUnfolder]: 748/1781 cut-off events. [2022-11-16 12:42:58,123 INFO L131 PetriNetUnfolder]: For 49/155 co-relation queries the response was YES. [2022-11-16 12:42:58,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2866 conditions, 1781 events. 748/1781 cut-off events. For 49/155 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9207 event pairs, 485 based on Foata normal form. 0/1558 useless extension candidates. Maximal degree in co-relation 2774. Up to 1010 conditions per place. [2022-11-16 12:42:58,135 INFO L137 encePairwiseOnDemand]: 464/467 looper letters, 28 selfloop transitions, 2 changer transitions 0/344 dead transitions. [2022-11-16 12:42:58,135 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 344 transitions, 760 flow [2022-11-16 12:42:58,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:42:58,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:42:58,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1087 transitions. [2022-11-16 12:42:58,138 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7758743754461099 [2022-11-16 12:42:58,139 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1087 transitions. [2022-11-16 12:42:58,139 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1087 transitions. [2022-11-16 12:42:58,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:42:58,140 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1087 transitions. [2022-11-16 12:42:58,142 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 362.3333333333333) internal successors, (1087), 3 states have internal predecessors, (1087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:58,146 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:58,147 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:58,147 INFO L175 Difference]: Start difference. First operand has 342 places, 345 transitions, 702 flow. Second operand 3 states and 1087 transitions. [2022-11-16 12:42:58,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 344 transitions, 760 flow [2022-11-16 12:42:58,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 344 transitions, 756 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:42:58,154 INFO L231 Difference]: Finished difference. Result has 341 places, 344 transitions, 700 flow [2022-11-16 12:42:58,155 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=696, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=344, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=342, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=700, PETRI_PLACES=341, PETRI_TRANSITIONS=344} [2022-11-16 12:42:58,156 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -91 predicate places. [2022-11-16 12:42:58,156 INFO L495 AbstractCegarLoop]: Abstraction has has 341 places, 344 transitions, 700 flow [2022-11-16 12:42:58,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:58,157 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:42:58,157 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:42:58,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:42:58,158 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-16 12:42:58,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:42:58,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1247525847, now seen corresponding path program 1 times [2022-11-16 12:42:58,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:42:58,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104550028] [2022-11-16 12:42:58,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:42:58,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:42:58,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:58,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:42:58,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:42:58,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104550028] [2022-11-16 12:42:58,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104550028] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:42:58,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:42:58,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:42:58,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377844062] [2022-11-16 12:42:58,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:42:58,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:42:58,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:42:58,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:42:58,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:42:58,208 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 467 [2022-11-16 12:42:58,209 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 344 transitions, 700 flow. Second operand has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:58,209 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:42:58,209 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 467 [2022-11-16 12:42:58,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:42:58,734 INFO L130 PetriNetUnfolder]: 748/1780 cut-off events. [2022-11-16 12:42:58,734 INFO L131 PetriNetUnfolder]: For 49/155 co-relation queries the response was YES. [2022-11-16 12:42:58,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2861 conditions, 1780 events. 748/1780 cut-off events. For 49/155 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9211 event pairs, 485 based on Foata normal form. 0/1558 useless extension candidates. Maximal degree in co-relation 2761. Up to 1005 conditions per place. [2022-11-16 12:42:58,756 INFO L137 encePairwiseOnDemand]: 465/467 looper letters, 25 selfloop transitions, 1 changer transitions 0/343 dead transitions. [2022-11-16 12:42:58,756 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 343 transitions, 750 flow [2022-11-16 12:42:58,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:42:58,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:42:58,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1092 transitions. [2022-11-16 12:42:58,760 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7794432548179872 [2022-11-16 12:42:58,760 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1092 transitions. [2022-11-16 12:42:58,760 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1092 transitions. [2022-11-16 12:42:58,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:42:58,761 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1092 transitions. [2022-11-16 12:42:58,764 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 364.0) internal successors, (1092), 3 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:58,777 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:58,787 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:58,788 INFO L175 Difference]: Start difference. First operand has 341 places, 344 transitions, 700 flow. Second operand 3 states and 1092 transitions. [2022-11-16 12:42:58,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 343 transitions, 750 flow [2022-11-16 12:42:58,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 343 transitions, 746 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:42:58,795 INFO L231 Difference]: Finished difference. Result has 340 places, 343 transitions, 696 flow [2022-11-16 12:42:58,796 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=694, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=343, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=342, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=696, PETRI_PLACES=340, PETRI_TRANSITIONS=343} [2022-11-16 12:42:58,797 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -92 predicate places. [2022-11-16 12:42:58,798 INFO L495 AbstractCegarLoop]: Abstraction has has 340 places, 343 transitions, 696 flow [2022-11-16 12:42:58,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:58,799 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:42:58,799 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:42:58,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 12:42:58,799 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-16 12:42:58,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:42:58,800 INFO L85 PathProgramCache]: Analyzing trace with hash -826139289, now seen corresponding path program 1 times [2022-11-16 12:42:58,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:42:58,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321416385] [2022-11-16 12:42:58,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:42:58,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:42:58,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:58,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:42:58,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:42:58,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321416385] [2022-11-16 12:42:58,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321416385] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:42:58,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:42:58,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:42:58,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137042287] [2022-11-16 12:42:58,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:42:58,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:42:58,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:42:58,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:42:58,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:42:58,890 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 467 [2022-11-16 12:42:58,891 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 343 transitions, 696 flow. Second operand has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:58,892 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:42:58,892 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 467 [2022-11-16 12:42:58,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:42:59,508 INFO L130 PetriNetUnfolder]: 748/1779 cut-off events. [2022-11-16 12:42:59,508 INFO L131 PetriNetUnfolder]: For 49/155 co-relation queries the response was YES. [2022-11-16 12:42:59,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2860 conditions, 1779 events. 748/1779 cut-off events. For 49/155 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9204 event pairs, 485 based on Foata normal form. 0/1558 useless extension candidates. Maximal degree in co-relation 2761. Up to 1007 conditions per place. [2022-11-16 12:42:59,523 INFO L137 encePairwiseOnDemand]: 464/467 looper letters, 25 selfloop transitions, 2 changer transitions 0/342 dead transitions. [2022-11-16 12:42:59,523 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 342 transitions, 748 flow [2022-11-16 12:42:59,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:42:59,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:42:59,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1093 transitions. [2022-11-16 12:42:59,528 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7801570306923626 [2022-11-16 12:42:59,528 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1093 transitions. [2022-11-16 12:42:59,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1093 transitions. [2022-11-16 12:42:59,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:42:59,530 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1093 transitions. [2022-11-16 12:42:59,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 364.3333333333333) internal successors, (1093), 3 states have internal predecessors, (1093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:59,537 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:59,538 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:59,538 INFO L175 Difference]: Start difference. First operand has 340 places, 343 transitions, 696 flow. Second operand 3 states and 1093 transitions. [2022-11-16 12:42:59,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 342 transitions, 748 flow [2022-11-16 12:42:59,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 342 transitions, 747 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:42:59,547 INFO L231 Difference]: Finished difference. Result has 340 places, 342 transitions, 697 flow [2022-11-16 12:42:59,547 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=693, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=342, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=340, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=697, PETRI_PLACES=340, PETRI_TRANSITIONS=342} [2022-11-16 12:42:59,548 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -92 predicate places. [2022-11-16 12:42:59,548 INFO L495 AbstractCegarLoop]: Abstraction has has 340 places, 342 transitions, 697 flow [2022-11-16 12:42:59,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:42:59,549 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:42:59,550 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:42:59,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 12:42:59,550 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-16 12:42:59,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:42:59,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1351259817, now seen corresponding path program 1 times [2022-11-16 12:42:59,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:42:59,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918259473] [2022-11-16 12:42:59,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:42:59,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:42:59,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:00,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:43:00,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:43:00,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918259473] [2022-11-16 12:43:00,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918259473] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:43:00,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:43:00,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:43:00,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754835208] [2022-11-16 12:43:00,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:43:00,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:43:00,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:43:00,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:43:00,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:43:00,266 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 303 out of 467 [2022-11-16 12:43:00,269 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 342 transitions, 697 flow. Second operand has 6 states, 6 states have (on average 304.8333333333333) internal successors, (1829), 6 states have internal predecessors, (1829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:00,269 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:43:00,270 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 303 of 467 [2022-11-16 12:43:00,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:43:02,762 INFO L130 PetriNetUnfolder]: 4978/7413 cut-off events. [2022-11-16 12:43:02,762 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:43:02,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13905 conditions, 7413 events. 4978/7413 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 36121 event pairs, 3467 based on Foata normal form. 0/6982 useless extension candidates. Maximal degree in co-relation 13807. Up to 6408 conditions per place. [2022-11-16 12:43:02,807 INFO L137 encePairwiseOnDemand]: 455/467 looper letters, 68 selfloop transitions, 10 changer transitions 0/340 dead transitions. [2022-11-16 12:43:02,807 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 340 transitions, 849 flow [2022-11-16 12:43:02,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:43:02,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:43:02,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1898 transitions. [2022-11-16 12:43:02,812 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6773733047822984 [2022-11-16 12:43:02,812 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1898 transitions. [2022-11-16 12:43:02,813 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1898 transitions. [2022-11-16 12:43:02,814 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:43:02,814 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1898 transitions. [2022-11-16 12:43:02,818 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 316.3333333333333) internal successors, (1898), 6 states have internal predecessors, (1898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:02,823 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 467.0) internal successors, (3269), 7 states have internal predecessors, (3269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:02,824 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 467.0) internal successors, (3269), 7 states have internal predecessors, (3269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:02,825 INFO L175 Difference]: Start difference. First operand has 340 places, 342 transitions, 697 flow. Second operand 6 states and 1898 transitions. [2022-11-16 12:43:02,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 340 transitions, 849 flow [2022-11-16 12:43:02,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 340 transitions, 845 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:43:02,832 INFO L231 Difference]: Finished difference. Result has 341 places, 340 transitions, 709 flow [2022-11-16 12:43:02,832 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=689, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=340, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=709, PETRI_PLACES=341, PETRI_TRANSITIONS=340} [2022-11-16 12:43:02,833 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -91 predicate places. [2022-11-16 12:43:02,833 INFO L495 AbstractCegarLoop]: Abstraction has has 341 places, 340 transitions, 709 flow [2022-11-16 12:43:02,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 304.8333333333333) internal successors, (1829), 6 states have internal predecessors, (1829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:02,834 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:43:02,834 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:43:02,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 12:43:02,835 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-16 12:43:02,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:43:02,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1069768024, now seen corresponding path program 1 times [2022-11-16 12:43:02,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:43:02,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578978046] [2022-11-16 12:43:02,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:43:02,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:43:02,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:02,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:43:02,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:43:02,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578978046] [2022-11-16 12:43:02,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578978046] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:43:02,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:43:02,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:43:02,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95881900] [2022-11-16 12:43:02,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:43:02,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:43:02,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:43:02,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:43:02,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:43:02,892 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 467 [2022-11-16 12:43:02,893 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 340 transitions, 709 flow. Second operand has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:02,894 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:43:02,894 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 467 [2022-11-16 12:43:02,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:43:03,393 INFO L130 PetriNetUnfolder]: 748/1776 cut-off events. [2022-11-16 12:43:03,394 INFO L131 PetriNetUnfolder]: For 49/155 co-relation queries the response was YES. [2022-11-16 12:43:03,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2866 conditions, 1776 events. 748/1776 cut-off events. For 49/155 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9203 event pairs, 485 based on Foata normal form. 0/1558 useless extension candidates. Maximal degree in co-relation 2833. Up to 1005 conditions per place. [2022-11-16 12:43:03,408 INFO L137 encePairwiseOnDemand]: 465/467 looper letters, 25 selfloop transitions, 1 changer transitions 0/339 dead transitions. [2022-11-16 12:43:03,408 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 339 transitions, 759 flow [2022-11-16 12:43:03,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:43:03,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:43:03,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1092 transitions. [2022-11-16 12:43:03,412 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7794432548179872 [2022-11-16 12:43:03,412 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1092 transitions. [2022-11-16 12:43:03,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1092 transitions. [2022-11-16 12:43:03,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:43:03,414 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1092 transitions. [2022-11-16 12:43:03,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 364.0) internal successors, (1092), 3 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:03,419 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:03,421 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:03,421 INFO L175 Difference]: Start difference. First operand has 341 places, 340 transitions, 709 flow. Second operand 3 states and 1092 transitions. [2022-11-16 12:43:03,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 339 transitions, 759 flow [2022-11-16 12:43:03,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 339 transitions, 739 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 12:43:03,430 INFO L231 Difference]: Finished difference. Result has 337 places, 339 transitions, 689 flow [2022-11-16 12:43:03,431 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=687, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=339, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=338, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=689, PETRI_PLACES=337, PETRI_TRANSITIONS=339} [2022-11-16 12:43:03,432 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -95 predicate places. [2022-11-16 12:43:03,433 INFO L495 AbstractCegarLoop]: Abstraction has has 337 places, 339 transitions, 689 flow [2022-11-16 12:43:03,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:03,434 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:43:03,434 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:43:03,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 12:43:03,434 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-16 12:43:03,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:43:03,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1468943639, now seen corresponding path program 1 times [2022-11-16 12:43:03,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:43:03,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740964330] [2022-11-16 12:43:03,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:43:03,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:43:03,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:03,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:43:03,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:43:03,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740964330] [2022-11-16 12:43:03,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740964330] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:43:03,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:43:03,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:43:03,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086680984] [2022-11-16 12:43:03,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:43:03,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:43:03,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:43:03,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:43:03,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:43:03,531 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 467 [2022-11-16 12:43:03,533 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 339 transitions, 689 flow. Second operand has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:03,533 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:43:03,533 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 467 [2022-11-16 12:43:03,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:43:04,056 INFO L130 PetriNetUnfolder]: 748/1775 cut-off events. [2022-11-16 12:43:04,056 INFO L131 PetriNetUnfolder]: For 49/155 co-relation queries the response was YES. [2022-11-16 12:43:04,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2857 conditions, 1775 events. 748/1775 cut-off events. For 49/155 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9206 event pairs, 485 based on Foata normal form. 0/1558 useless extension candidates. Maximal degree in co-relation 2758. Up to 1007 conditions per place. [2022-11-16 12:43:04,071 INFO L137 encePairwiseOnDemand]: 464/467 looper letters, 25 selfloop transitions, 2 changer transitions 0/338 dead transitions. [2022-11-16 12:43:04,071 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 338 places, 338 transitions, 741 flow [2022-11-16 12:43:04,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:43:04,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:43:04,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1093 transitions. [2022-11-16 12:43:04,075 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7801570306923626 [2022-11-16 12:43:04,075 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1093 transitions. [2022-11-16 12:43:04,075 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1093 transitions. [2022-11-16 12:43:04,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:43:04,076 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1093 transitions. [2022-11-16 12:43:04,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 364.3333333333333) internal successors, (1093), 3 states have internal predecessors, (1093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:04,082 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:04,082 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:04,083 INFO L175 Difference]: Start difference. First operand has 337 places, 339 transitions, 689 flow. Second operand 3 states and 1093 transitions. [2022-11-16 12:43:04,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 338 places, 338 transitions, 741 flow [2022-11-16 12:43:04,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 338 transitions, 740 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:43:04,089 INFO L231 Difference]: Finished difference. Result has 337 places, 338 transitions, 690 flow [2022-11-16 12:43:04,090 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=686, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=338, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=336, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=690, PETRI_PLACES=337, PETRI_TRANSITIONS=338} [2022-11-16 12:43:04,091 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -95 predicate places. [2022-11-16 12:43:04,091 INFO L495 AbstractCegarLoop]: Abstraction has has 337 places, 338 transitions, 690 flow [2022-11-16 12:43:04,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:04,092 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:43:04,092 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:43:04,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 12:43:04,093 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-16 12:43:04,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:43:04,093 INFO L85 PathProgramCache]: Analyzing trace with hash 576773140, now seen corresponding path program 1 times [2022-11-16 12:43:04,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:43:04,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784888816] [2022-11-16 12:43:04,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:43:04,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:43:04,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:04,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:43:04,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:43:04,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784888816] [2022-11-16 12:43:04,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784888816] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:43:04,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:43:04,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:43:04,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106941488] [2022-11-16 12:43:04,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:43:04,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:43:04,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:43:04,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:43:04,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:43:04,182 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 467 [2022-11-16 12:43:04,184 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 338 transitions, 690 flow. Second operand has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:04,184 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:43:04,185 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 467 [2022-11-16 12:43:04,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:43:04,717 INFO L130 PetriNetUnfolder]: 748/1773 cut-off events. [2022-11-16 12:43:04,717 INFO L131 PetriNetUnfolder]: For 49/155 co-relation queries the response was YES. [2022-11-16 12:43:04,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2858 conditions, 1773 events. 748/1773 cut-off events. For 49/155 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9196 event pairs, 485 based on Foata normal form. 0/1558 useless extension candidates. Maximal degree in co-relation 2758. Up to 1007 conditions per place. [2022-11-16 12:43:04,731 INFO L137 encePairwiseOnDemand]: 464/467 looper letters, 27 selfloop transitions, 1 changer transitions 0/336 dead transitions. [2022-11-16 12:43:04,732 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 336 transitions, 742 flow [2022-11-16 12:43:04,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:43:04,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:43:04,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1086 transitions. [2022-11-16 12:43:04,735 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7751605995717344 [2022-11-16 12:43:04,735 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1086 transitions. [2022-11-16 12:43:04,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1086 transitions. [2022-11-16 12:43:04,736 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:43:04,737 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1086 transitions. [2022-11-16 12:43:04,740 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 362.0) internal successors, (1086), 3 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:04,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:04,743 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:04,744 INFO L175 Difference]: Start difference. First operand has 337 places, 338 transitions, 690 flow. Second operand 3 states and 1086 transitions. [2022-11-16 12:43:04,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 336 transitions, 742 flow [2022-11-16 12:43:04,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 335 places, 336 transitions, 738 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:43:04,751 INFO L231 Difference]: Finished difference. Result has 335 places, 336 transitions, 684 flow [2022-11-16 12:43:04,752 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=682, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=335, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=684, PETRI_PLACES=335, PETRI_TRANSITIONS=336} [2022-11-16 12:43:04,753 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -97 predicate places. [2022-11-16 12:43:04,753 INFO L495 AbstractCegarLoop]: Abstraction has has 335 places, 336 transitions, 684 flow [2022-11-16 12:43:04,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:04,754 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:43:04,754 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:43:04,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 12:43:04,755 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-16 12:43:04,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:43:04,755 INFO L85 PathProgramCache]: Analyzing trace with hash -962124482, now seen corresponding path program 1 times [2022-11-16 12:43:04,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:43:04,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015653158] [2022-11-16 12:43:04,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:43:04,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:43:04,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:04,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:43:04,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:43:04,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015653158] [2022-11-16 12:43:04,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015653158] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:43:04,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:43:04,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:43:04,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639796421] [2022-11-16 12:43:04,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:43:04,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:43:04,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:43:04,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:43:04,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:43:04,826 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 467 [2022-11-16 12:43:04,827 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 336 transitions, 684 flow. Second operand has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:04,827 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:43:04,827 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 467 [2022-11-16 12:43:04,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:43:05,241 INFO L130 PetriNetUnfolder]: 748/1772 cut-off events. [2022-11-16 12:43:05,241 INFO L131 PetriNetUnfolder]: For 49/155 co-relation queries the response was YES. [2022-11-16 12:43:05,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2854 conditions, 1772 events. 748/1772 cut-off events. For 49/155 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9183 event pairs, 485 based on Foata normal form. 0/1558 useless extension candidates. Maximal degree in co-relation 2754. Up to 1005 conditions per place. [2022-11-16 12:43:05,254 INFO L137 encePairwiseOnDemand]: 465/467 looper letters, 25 selfloop transitions, 1 changer transitions 0/335 dead transitions. [2022-11-16 12:43:05,254 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 335 transitions, 734 flow [2022-11-16 12:43:05,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:43:05,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:43:05,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1092 transitions. [2022-11-16 12:43:05,258 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7794432548179872 [2022-11-16 12:43:05,258 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1092 transitions. [2022-11-16 12:43:05,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1092 transitions. [2022-11-16 12:43:05,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:43:05,259 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1092 transitions. [2022-11-16 12:43:05,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 364.0) internal successors, (1092), 3 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:05,264 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:05,265 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:05,265 INFO L175 Difference]: Start difference. First operand has 335 places, 336 transitions, 684 flow. Second operand 3 states and 1092 transitions. [2022-11-16 12:43:05,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 335 transitions, 734 flow [2022-11-16 12:43:05,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 335 places, 335 transitions, 733 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:43:05,272 INFO L231 Difference]: Finished difference. Result has 335 places, 335 transitions, 683 flow [2022-11-16 12:43:05,272 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=681, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=335, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=334, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=683, PETRI_PLACES=335, PETRI_TRANSITIONS=335} [2022-11-16 12:43:05,273 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -97 predicate places. [2022-11-16 12:43:05,273 INFO L495 AbstractCegarLoop]: Abstraction has has 335 places, 335 transitions, 683 flow [2022-11-16 12:43:05,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:05,274 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:43:05,274 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:43:05,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 12:43:05,274 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-16 12:43:05,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:43:05,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1183592980, now seen corresponding path program 1 times [2022-11-16 12:43:05,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:43:05,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986953913] [2022-11-16 12:43:05,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:43:05,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:43:05,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:05,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:43:05,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:43:05,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986953913] [2022-11-16 12:43:05,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986953913] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:43:05,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:43:05,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:43:05,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735283465] [2022-11-16 12:43:05,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:43:05,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:43:05,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:43:05,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:43:05,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:43:05,342 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 467 [2022-11-16 12:43:05,343 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 335 transitions, 683 flow. Second operand has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:05,344 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:43:05,344 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 467 [2022-11-16 12:43:05,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:43:05,914 INFO L130 PetriNetUnfolder]: 748/1770 cut-off events. [2022-11-16 12:43:05,914 INFO L131 PetriNetUnfolder]: For 49/155 co-relation queries the response was YES. [2022-11-16 12:43:05,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2855 conditions, 1770 events. 748/1770 cut-off events. For 49/155 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9180 event pairs, 485 based on Foata normal form. 0/1558 useless extension candidates. Maximal degree in co-relation 2755. Up to 1007 conditions per place. [2022-11-16 12:43:05,927 INFO L137 encePairwiseOnDemand]: 464/467 looper letters, 27 selfloop transitions, 1 changer transitions 0/333 dead transitions. [2022-11-16 12:43:05,927 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 333 transitions, 735 flow [2022-11-16 12:43:05,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:43:05,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:43:05,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1086 transitions. [2022-11-16 12:43:05,930 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7751605995717344 [2022-11-16 12:43:05,931 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1086 transitions. [2022-11-16 12:43:05,931 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1086 transitions. [2022-11-16 12:43:05,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:43:05,932 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1086 transitions. [2022-11-16 12:43:05,934 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 362.0) internal successors, (1086), 3 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:05,937 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:05,938 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:05,938 INFO L175 Difference]: Start difference. First operand has 335 places, 335 transitions, 683 flow. Second operand 3 states and 1086 transitions. [2022-11-16 12:43:05,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 333 transitions, 735 flow [2022-11-16 12:43:05,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 333 transitions, 734 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:43:05,944 INFO L231 Difference]: Finished difference. Result has 334 places, 333 transitions, 680 flow [2022-11-16 12:43:05,945 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=678, PETRI_DIFFERENCE_MINUEND_PLACES=332, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=680, PETRI_PLACES=334, PETRI_TRANSITIONS=333} [2022-11-16 12:43:05,946 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -98 predicate places. [2022-11-16 12:43:05,946 INFO L495 AbstractCegarLoop]: Abstraction has has 334 places, 333 transitions, 680 flow [2022-11-16 12:43:05,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:05,947 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:43:05,947 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:43:05,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 12:43:05,947 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-16 12:43:05,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:43:05,948 INFO L85 PathProgramCache]: Analyzing trace with hash -2048814992, now seen corresponding path program 1 times [2022-11-16 12:43:05,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:43:05,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474515410] [2022-11-16 12:43:05,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:43:05,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:43:05,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:06,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:43:06,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:43:06,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474515410] [2022-11-16 12:43:06,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474515410] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:43:06,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:43:06,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:43:06,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901812962] [2022-11-16 12:43:06,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:43:06,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:43:06,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:43:06,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:43:06,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:43:06,025 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 467 [2022-11-16 12:43:06,027 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 334 places, 333 transitions, 680 flow. Second operand has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:06,027 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:43:06,027 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 467 [2022-11-16 12:43:06,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:43:06,803 INFO L130 PetriNetUnfolder]: 1256/2921 cut-off events. [2022-11-16 12:43:06,803 INFO L131 PetriNetUnfolder]: For 83/269 co-relation queries the response was YES. [2022-11-16 12:43:06,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4748 conditions, 2921 events. 1256/2921 cut-off events. For 83/269 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 18016 event pairs, 792 based on Foata normal form. 0/2542 useless extension candidates. Maximal degree in co-relation 4648. Up to 1085 conditions per place. [2022-11-16 12:43:06,827 INFO L137 encePairwiseOnDemand]: 464/467 looper letters, 45 selfloop transitions, 2 changer transitions 0/353 dead transitions. [2022-11-16 12:43:06,828 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 353 transitions, 822 flow [2022-11-16 12:43:06,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:43:06,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:43:06,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1113 transitions. [2022-11-16 12:43:06,832 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7944325481798715 [2022-11-16 12:43:06,832 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1113 transitions. [2022-11-16 12:43:06,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1113 transitions. [2022-11-16 12:43:06,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:43:06,833 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1113 transitions. [2022-11-16 12:43:06,836 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 371.0) internal successors, (1113), 3 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:06,839 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:06,839 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:06,840 INFO L175 Difference]: Start difference. First operand has 334 places, 333 transitions, 680 flow. Second operand 3 states and 1113 transitions. [2022-11-16 12:43:06,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 353 transitions, 822 flow [2022-11-16 12:43:06,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 353 transitions, 821 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:43:06,848 INFO L231 Difference]: Finished difference. Result has 335 places, 333 transitions, 687 flow [2022-11-16 12:43:06,848 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=677, PETRI_DIFFERENCE_MINUEND_PLACES=332, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=687, PETRI_PLACES=335, PETRI_TRANSITIONS=333} [2022-11-16 12:43:06,849 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -97 predicate places. [2022-11-16 12:43:06,849 INFO L495 AbstractCegarLoop]: Abstraction has has 335 places, 333 transitions, 687 flow [2022-11-16 12:43:06,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:06,850 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:43:06,850 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:43:06,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 12:43:06,851 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-16 12:43:06,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:43:06,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1812929224, now seen corresponding path program 1 times [2022-11-16 12:43:06,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:43:06,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52357407] [2022-11-16 12:43:06,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:43:06,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:43:06,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:06,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:43:06,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:43:06,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52357407] [2022-11-16 12:43:06,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52357407] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:43:06,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:43:06,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:43:06,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324684515] [2022-11-16 12:43:06,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:43:06,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:43:06,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:43:06,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:43:06,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:43:06,926 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 467 [2022-11-16 12:43:06,927 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 333 transitions, 687 flow. Second operand has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:06,928 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:43:06,928 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 467 [2022-11-16 12:43:06,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:43:08,358 INFO L130 PetriNetUnfolder]: 2192/5181 cut-off events. [2022-11-16 12:43:08,358 INFO L131 PetriNetUnfolder]: For 414/738 co-relation queries the response was YES. [2022-11-16 12:43:08,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8819 conditions, 5181 events. 2192/5181 cut-off events. For 414/738 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 38616 event pairs, 1359 based on Foata normal form. 0/4460 useless extension candidates. Maximal degree in co-relation 8718. Up to 1803 conditions per place. [2022-11-16 12:43:08,396 INFO L137 encePairwiseOnDemand]: 464/467 looper letters, 47 selfloop transitions, 2 changer transitions 0/354 dead transitions. [2022-11-16 12:43:08,397 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 354 transitions, 840 flow [2022-11-16 12:43:08,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:43:08,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:43:08,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1113 transitions. [2022-11-16 12:43:08,400 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7944325481798715 [2022-11-16 12:43:08,400 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1113 transitions. [2022-11-16 12:43:08,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1113 transitions. [2022-11-16 12:43:08,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:43:08,402 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1113 transitions. [2022-11-16 12:43:08,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 371.0) internal successors, (1113), 3 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:08,407 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:08,407 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:08,408 INFO L175 Difference]: Start difference. First operand has 335 places, 333 transitions, 687 flow. Second operand 3 states and 1113 transitions. [2022-11-16 12:43:08,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 354 transitions, 840 flow [2022-11-16 12:43:08,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 335 places, 354 transitions, 837 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:43:08,416 INFO L231 Difference]: Finished difference. Result has 336 places, 333 transitions, 693 flow [2022-11-16 12:43:08,416 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=683, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=693, PETRI_PLACES=336, PETRI_TRANSITIONS=333} [2022-11-16 12:43:08,417 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -96 predicate places. [2022-11-16 12:43:08,417 INFO L495 AbstractCegarLoop]: Abstraction has has 336 places, 333 transitions, 693 flow [2022-11-16 12:43:08,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:08,418 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:43:08,418 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:43:08,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-16 12:43:08,419 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-16 12:43:08,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:43:08,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1816122821, now seen corresponding path program 1 times [2022-11-16 12:43:08,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:43:08,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471108250] [2022-11-16 12:43:08,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:43:08,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:43:08,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:08,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:43:08,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:43:08,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471108250] [2022-11-16 12:43:08,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471108250] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:43:08,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:43:08,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:43:08,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333151025] [2022-11-16 12:43:08,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:43:08,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:43:08,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:43:08,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:43:08,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:43:08,483 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 467 [2022-11-16 12:43:08,484 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 336 places, 333 transitions, 693 flow. Second operand has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:08,485 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:43:08,485 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 467 [2022-11-16 12:43:08,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:43:11,067 INFO L130 PetriNetUnfolder]: 3256/8336 cut-off events. [2022-11-16 12:43:11,067 INFO L131 PetriNetUnfolder]: For 1049/1508 co-relation queries the response was YES. [2022-11-16 12:43:11,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14045 conditions, 8336 events. 3256/8336 cut-off events. For 1049/1508 co-relation queries the response was YES. Maximal size of possible extension queue 355. Compared 72735 event pairs, 1461 based on Foata normal form. 0/7193 useless extension candidates. Maximal degree in co-relation 13943. Up to 2480 conditions per place. [2022-11-16 12:43:11,151 INFO L137 encePairwiseOnDemand]: 463/467 looper letters, 48 selfloop transitions, 4 changer transitions 0/356 dead transitions. [2022-11-16 12:43:11,151 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 356 transitions, 860 flow [2022-11-16 12:43:11,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:43:11,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:43:11,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1114 transitions. [2022-11-16 12:43:11,156 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.795146324054247 [2022-11-16 12:43:11,157 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1114 transitions. [2022-11-16 12:43:11,157 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1114 transitions. [2022-11-16 12:43:11,158 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:43:11,158 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1114 transitions. [2022-11-16 12:43:11,162 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 371.3333333333333) internal successors, (1114), 3 states have internal predecessors, (1114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:11,165 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:11,166 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:11,166 INFO L175 Difference]: Start difference. First operand has 336 places, 333 transitions, 693 flow. Second operand 3 states and 1114 transitions. [2022-11-16 12:43:11,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 356 transitions, 860 flow [2022-11-16 12:43:11,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 356 transitions, 857 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:43:11,177 INFO L231 Difference]: Finished difference. Result has 338 places, 335 transitions, 721 flow [2022-11-16 12:43:11,177 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=689, PETRI_DIFFERENCE_MINUEND_PLACES=334, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=328, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=721, PETRI_PLACES=338, PETRI_TRANSITIONS=335} [2022-11-16 12:43:11,178 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -94 predicate places. [2022-11-16 12:43:11,178 INFO L495 AbstractCegarLoop]: Abstraction has has 338 places, 335 transitions, 721 flow [2022-11-16 12:43:11,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:11,179 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:43:11,179 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:43:11,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-16 12:43:11,180 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-16 12:43:11,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:43:11,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1531801131, now seen corresponding path program 1 times [2022-11-16 12:43:11,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:43:11,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212913873] [2022-11-16 12:43:11,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:43:11,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:43:11,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:11,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:43:11,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:43:11,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212913873] [2022-11-16 12:43:11,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212913873] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:43:11,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:43:11,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:43:11,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822704602] [2022-11-16 12:43:11,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:43:11,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:43:11,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:43:11,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:43:11,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:43:11,264 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 467 [2022-11-16 12:43:11,266 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 335 transitions, 721 flow. Second operand has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:11,266 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:43:11,266 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 467 [2022-11-16 12:43:11,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:43:13,953 INFO L130 PetriNetUnfolder]: 4475/10993 cut-off events. [2022-11-16 12:43:13,954 INFO L131 PetriNetUnfolder]: For 4552/5361 co-relation queries the response was YES. [2022-11-16 12:43:14,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20163 conditions, 10993 events. 4475/10993 cut-off events. For 4552/5361 co-relation queries the response was YES. Maximal size of possible extension queue 512. Compared 99941 event pairs, 1933 based on Foata normal form. 0/9488 useless extension candidates. Maximal degree in co-relation 20060. Up to 3689 conditions per place. [2022-11-16 12:43:14,063 INFO L137 encePairwiseOnDemand]: 463/467 looper letters, 54 selfloop transitions, 4 changer transitions 0/361 dead transitions. [2022-11-16 12:43:14,064 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 339 places, 361 transitions, 927 flow [2022-11-16 12:43:14,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:43:14,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:43:14,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1114 transitions. [2022-11-16 12:43:14,068 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.795146324054247 [2022-11-16 12:43:14,068 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1114 transitions. [2022-11-16 12:43:14,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1114 transitions. [2022-11-16 12:43:14,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:43:14,069 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1114 transitions. [2022-11-16 12:43:14,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 371.3333333333333) internal successors, (1114), 3 states have internal predecessors, (1114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:14,075 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:14,076 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:14,076 INFO L175 Difference]: Start difference. First operand has 338 places, 335 transitions, 721 flow. Second operand 3 states and 1114 transitions. [2022-11-16 12:43:14,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 339 places, 361 transitions, 927 flow [2022-11-16 12:43:14,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 361 transitions, 913 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:43:14,087 INFO L231 Difference]: Finished difference. Result has 339 places, 337 transitions, 743 flow [2022-11-16 12:43:14,088 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=711, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=334, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=743, PETRI_PLACES=339, PETRI_TRANSITIONS=337} [2022-11-16 12:43:14,088 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -93 predicate places. [2022-11-16 12:43:14,089 INFO L495 AbstractCegarLoop]: Abstraction has has 339 places, 337 transitions, 743 flow [2022-11-16 12:43:14,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:14,089 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:43:14,090 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:43:14,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-16 12:43:14,090 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-16 12:43:14,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:43:14,091 INFO L85 PathProgramCache]: Analyzing trace with hash 109963664, now seen corresponding path program 1 times [2022-11-16 12:43:14,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:43:14,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339846177] [2022-11-16 12:43:14,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:43:14,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:43:14,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:14,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:43:14,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:43:14,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339846177] [2022-11-16 12:43:14,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339846177] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:43:14,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:43:14,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:43:14,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438478475] [2022-11-16 12:43:14,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:43:14,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:43:14,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:43:14,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:43:14,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:43:14,977 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 319 out of 467 [2022-11-16 12:43:14,979 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 337 transitions, 743 flow. Second operand has 6 states, 6 states have (on average 321.1666666666667) internal successors, (1927), 6 states have internal predecessors, (1927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:14,979 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:43:14,979 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 319 of 467 [2022-11-16 12:43:14,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:43:29,312 INFO L130 PetriNetUnfolder]: 30545/45921 cut-off events. [2022-11-16 12:43:29,312 INFO L131 PetriNetUnfolder]: For 35512/35512 co-relation queries the response was YES. [2022-11-16 12:43:29,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108650 conditions, 45921 events. 30545/45921 cut-off events. For 35512/35512 co-relation queries the response was YES. Maximal size of possible extension queue 1309. Compared 306893 event pairs, 4256 based on Foata normal form. 0/44006 useless extension candidates. Maximal degree in co-relation 108546. Up to 17939 conditions per place. [2022-11-16 12:43:29,640 INFO L137 encePairwiseOnDemand]: 462/467 looper letters, 151 selfloop transitions, 4 changer transitions 0/424 dead transitions. [2022-11-16 12:43:29,640 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 424 transitions, 1411 flow [2022-11-16 12:43:29,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:43:29,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:43:29,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2030 transitions. [2022-11-16 12:43:29,647 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7244825124910778 [2022-11-16 12:43:29,647 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2030 transitions. [2022-11-16 12:43:29,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2030 transitions. [2022-11-16 12:43:29,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:43:29,649 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2030 transitions. [2022-11-16 12:43:29,653 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 338.3333333333333) internal successors, (2030), 6 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:29,659 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 467.0) internal successors, (3269), 7 states have internal predecessors, (3269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:29,660 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 467.0) internal successors, (3269), 7 states have internal predecessors, (3269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:29,660 INFO L175 Difference]: Start difference. First operand has 339 places, 337 transitions, 743 flow. Second operand 6 states and 2030 transitions. [2022-11-16 12:43:29,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 424 transitions, 1411 flow [2022-11-16 12:43:29,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 424 transitions, 1379 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:43:29,701 INFO L231 Difference]: Finished difference. Result has 341 places, 336 transitions, 741 flow [2022-11-16 12:43:29,702 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=733, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=741, PETRI_PLACES=341, PETRI_TRANSITIONS=336} [2022-11-16 12:43:29,703 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -91 predicate places. [2022-11-16 12:43:29,703 INFO L495 AbstractCegarLoop]: Abstraction has has 341 places, 336 transitions, 741 flow [2022-11-16 12:43:29,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 321.1666666666667) internal successors, (1927), 6 states have internal predecessors, (1927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:29,704 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:43:29,705 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:43:29,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-16 12:43:29,705 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-16 12:43:29,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:43:29,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1394830624, now seen corresponding path program 1 times [2022-11-16 12:43:29,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:43:29,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729286376] [2022-11-16 12:43:29,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:43:29,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:43:29,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:30,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:43:30,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:43:30,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729286376] [2022-11-16 12:43:30,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729286376] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:43:30,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:43:30,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:43:30,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21854661] [2022-11-16 12:43:30,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:43:30,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:43:30,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:43:30,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:43:30,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:43:30,586 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 319 out of 467 [2022-11-16 12:43:30,588 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 336 transitions, 741 flow. Second operand has 6 states, 6 states have (on average 322.3333333333333) internal successors, (1934), 6 states have internal predecessors, (1934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:43:30,589 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:43:30,589 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 319 of 467 [2022-11-16 12:43:30,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand