./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dce7478-4e8a-4dc4-9043-32ba08651f8a/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dce7478-4e8a-4dc4-9043-32ba08651f8a/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_2dce7478-4e8a-4dc4-9043-32ba08651f8a/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dce7478-4e8a-4dc4-9043-32ba08651f8a/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dce7478-4e8a-4dc4-9043-32ba08651f8a/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_2dce7478-4e8a-4dc4-9043-32ba08651f8a/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 3e185f9c0dac86cdbb29caae2de39811a090d813c08c4c3552062c2aa77b8788 --- 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 12:36:56,081 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:36:56,084 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:36:56,104 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:36:56,104 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:36:56,106 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:36:56,107 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:36:56,109 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:36:56,111 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:36:56,113 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:36:56,114 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:36:56,115 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:36:56,116 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:36:56,117 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:36:56,118 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:36:56,119 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:36:56,120 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:36:56,122 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:36:56,123 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:36:56,125 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:36:56,127 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:36:56,134 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:36:56,135 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:36:56,138 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:36:56,143 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:36:56,149 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:36:56,149 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:36:56,150 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:36:56,152 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:36:56,153 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:36:56,154 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:36:56,155 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:36:56,156 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:36:56,158 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:36:56,160 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:36:56,161 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:36:56,163 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:36:56,163 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:36:56,163 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:36:56,164 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:36:56,165 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:36:56,166 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dce7478-4e8a-4dc4-9043-32ba08651f8a/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 12:36:56,209 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:36:56,212 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:36:56,213 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:36:56,213 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:36:56,214 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:36:56,215 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:36:56,216 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:36:56,216 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:36:56,216 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:36:56,216 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:36:56,218 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:36:56,218 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:36:56,218 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:36:56,218 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:36:56,218 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:36:56,219 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:36:56,219 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:36:56,219 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:36:56,219 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 12:36:56,220 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:36:56,220 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:36:56,220 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:36:56,220 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:36:56,221 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:36:56,221 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:36:56,221 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:36:56,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:36:56,223 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:36:56,223 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:36:56,224 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:36:56,224 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:36:56,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:36:56,224 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:36:56,225 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:36:56,225 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:36:56,225 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_2dce7478-4e8a-4dc4-9043-32ba08651f8a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dce7478-4e8a-4dc4-9043-32ba08651f8a/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3e185f9c0dac86cdbb29caae2de39811a090d813c08c4c3552062c2aa77b8788 [2022-11-16 12:36:56,545 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:36:56,573 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:36:56,578 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:36:56,579 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:36:56,580 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:36:56,581 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dce7478-4e8a-4dc4-9043-32ba08651f8a/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c [2022-11-16 12:36:56,666 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dce7478-4e8a-4dc4-9043-32ba08651f8a/bin/uautomizer-tPACEb0tL8/data/6e5f57cac/f5b9f2ccb54d424897d858f809fd8b09/FLAG65d23c654 [2022-11-16 12:36:57,189 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:36:57,190 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dce7478-4e8a-4dc4-9043-32ba08651f8a/sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c [2022-11-16 12:36:57,203 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dce7478-4e8a-4dc4-9043-32ba08651f8a/bin/uautomizer-tPACEb0tL8/data/6e5f57cac/f5b9f2ccb54d424897d858f809fd8b09/FLAG65d23c654 [2022-11-16 12:36:57,557 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dce7478-4e8a-4dc4-9043-32ba08651f8a/bin/uautomizer-tPACEb0tL8/data/6e5f57cac/f5b9f2ccb54d424897d858f809fd8b09 [2022-11-16 12:36:57,560 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:36:57,562 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:36:57,566 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:36:57,566 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:36:57,570 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:36:57,571 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:36:57" (1/1) ... [2022-11-16 12:36:57,572 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7171d2f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:36:57, skipping insertion in model container [2022-11-16 12:36:57,573 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:36:57" (1/1) ... [2022-11-16 12:36:57,581 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:36:57,612 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:36:57,911 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_2dce7478-4e8a-4dc4-9043-32ba08651f8a/sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c[2815,2828] [2022-11-16 12:36:57,920 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:36:57,928 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:36:57,968 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_2dce7478-4e8a-4dc4-9043-32ba08651f8a/sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c[2815,2828] [2022-11-16 12:36:57,974 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:36:57,988 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:36:57,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:36:57 WrapperNode [2022-11-16 12:36:57,989 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:36:57,990 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:36:57,990 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:36:57,990 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:36:57,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:36:57" (1/1) ... [2022-11-16 12:36:58,011 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:36:57" (1/1) ... [2022-11-16 12:36:58,052 INFO L138 Inliner]: procedures = 26, calls = 57, calls flagged for inlining = 14, calls inlined = 22, statements flattened = 371 [2022-11-16 12:36:58,052 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:36:58,053 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:36:58,053 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:36:58,053 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:36:58,063 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:36:57" (1/1) ... [2022-11-16 12:36:58,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:36:57" (1/1) ... [2022-11-16 12:36:58,070 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:36:57" (1/1) ... [2022-11-16 12:36:58,071 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:36:57" (1/1) ... [2022-11-16 12:36:58,109 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:36:57" (1/1) ... [2022-11-16 12:36:58,124 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:36:57" (1/1) ... [2022-11-16 12:36:58,127 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:36:57" (1/1) ... [2022-11-16 12:36:58,130 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:36:57" (1/1) ... [2022-11-16 12:36:58,147 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:36:58,148 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:36:58,148 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:36:58,148 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:36:58,150 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:36:57" (1/1) ... [2022-11-16 12:36:58,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:36:58,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dce7478-4e8a-4dc4-9043-32ba08651f8a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:36:58,188 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dce7478-4e8a-4dc4-9043-32ba08651f8a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:36:58,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dce7478-4e8a-4dc4-9043-32ba08651f8a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:36:58,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:36:58,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:36:58,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:36:58,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:36:58,245 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 12:36:58,248 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 12:36:58,248 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 12:36:58,253 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 12:36:58,253 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-16 12:36:58,253 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-16 12:36:58,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:36:58,254 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 12:36:58,254 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 12:36:58,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 12:36:58,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:36:58,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:36:58,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:36:58,257 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 12:36:58,445 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:36:58,448 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:36:59,614 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:36:59,914 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:36:59,914 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-16 12:36:59,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:36:59 BoogieIcfgContainer [2022-11-16 12:36:59,919 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:36:59,922 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:36:59,923 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:36:59,926 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:36:59,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:36:57" (1/3) ... [2022-11-16 12:36:59,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64e058da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:36:59, skipping insertion in model container [2022-11-16 12:36:59,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:36:57" (2/3) ... [2022-11-16 12:36:59,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64e058da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:36:59, skipping insertion in model container [2022-11-16 12:36:59,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:36:59" (3/3) ... [2022-11-16 12:36:59,929 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-min.wvr.c [2022-11-16 12:36:59,942 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:36:59,952 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:36:59,953 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 58 error locations. [2022-11-16 12:36:59,953 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:37:00,111 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-16 12:37:00,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 511 places, 528 transitions, 1080 flow [2022-11-16 12:37:00,376 INFO L130 PetriNetUnfolder]: 27/525 cut-off events. [2022-11-16 12:37:00,376 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 12:37:00,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 538 conditions, 525 events. 27/525 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 624 event pairs, 0 based on Foata normal form. 0/440 useless extension candidates. Maximal degree in co-relation 421. Up to 3 conditions per place. [2022-11-16 12:37:00,387 INFO L82 GeneralOperation]: Start removeDead. Operand has 511 places, 528 transitions, 1080 flow [2022-11-16 12:37:00,401 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 464 places, 478 transitions, 974 flow [2022-11-16 12:37:00,411 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:37:00,420 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;@370a248b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:37:00,421 INFO L358 AbstractCegarLoop]: Starting to check reachability of 90 error locations. [2022-11-16 12:37:00,426 INFO L130 PetriNetUnfolder]: 0/27 cut-off events. [2022-11-16 12:37:00,426 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:37:00,426 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:37:00,427 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] [2022-11-16 12:37:00,427 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 12:37:00,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:00,433 INFO L85 PathProgramCache]: Analyzing trace with hash -945823295, now seen corresponding path program 1 times [2022-11-16 12:37:00,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:00,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416713900] [2022-11-16 12:37:00,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:00,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:00,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:00,718 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 12:37:00,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:00,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416713900] [2022-11-16 12:37:00,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416713900] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:37:00,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:37:00,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:37:00,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864188298] [2022-11-16 12:37:00,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:37:00,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:37:00,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:00,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:37:00,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:37:00,778 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 459 out of 528 [2022-11-16 12:37:00,787 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 478 transitions, 974 flow. Second operand has 3 states, 3 states have (on average 460.3333333333333) internal successors, (1381), 3 states have internal predecessors, (1381), 0 states have call successors, (0), 0 states 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 12:37:00,788 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:37:00,788 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 459 of 528 [2022-11-16 12:37:00,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:37:01,481 INFO L130 PetriNetUnfolder]: 390/1591 cut-off events. [2022-11-16 12:37:01,481 INFO L131 PetriNetUnfolder]: For 140/293 co-relation queries the response was YES. [2022-11-16 12:37:01,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2229 conditions, 1591 events. 390/1591 cut-off events. For 140/293 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 9175 event pairs, 255 based on Foata normal form. 12/1253 useless extension candidates. Maximal degree in co-relation 1742. Up to 545 conditions per place. [2022-11-16 12:37:01,509 INFO L137 encePairwiseOnDemand]: 496/528 looper letters, 33 selfloop transitions, 2 changer transitions 9/448 dead transitions. [2022-11-16 12:37:01,509 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 448 transitions, 984 flow [2022-11-16 12:37:01,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:37:01,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:37:01,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1442 transitions. [2022-11-16 12:37:01,534 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9103535353535354 [2022-11-16 12:37:01,535 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1442 transitions. [2022-11-16 12:37:01,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1442 transitions. [2022-11-16 12:37:01,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:37:01,543 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1442 transitions. [2022-11-16 12:37:01,552 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 480.6666666666667) internal successors, (1442), 3 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states 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 12:37:01,563 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 12:37:01,565 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 12:37:01,567 INFO L175 Difference]: Start difference. First operand has 464 places, 478 transitions, 974 flow. Second operand 3 states and 1442 transitions. [2022-11-16 12:37:01,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 448 transitions, 984 flow [2022-11-16 12:37:01,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 445 places, 448 transitions, 972 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-16 12:37:01,637 INFO L231 Difference]: Finished difference. Result has 445 places, 439 transitions, 888 flow [2022-11-16 12:37:01,639 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=902, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=448, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=446, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=888, PETRI_PLACES=445, PETRI_TRANSITIONS=439} [2022-11-16 12:37:01,642 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -19 predicate places. [2022-11-16 12:37:01,643 INFO L495 AbstractCegarLoop]: Abstraction has has 445 places, 439 transitions, 888 flow [2022-11-16 12:37:01,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 460.3333333333333) internal successors, (1381), 3 states have internal predecessors, (1381), 0 states have call successors, (0), 0 states 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 12:37:01,644 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:37:01,644 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:37:01,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:37:01,645 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 12:37:01,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:01,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1337293528, now seen corresponding path program 1 times [2022-11-16 12:37:01,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:01,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115362821] [2022-11-16 12:37:01,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:01,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:01,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:01,766 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 12:37:01,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:01,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115362821] [2022-11-16 12:37:01,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115362821] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:37:01,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:37:01,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:37:01,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73632228] [2022-11-16 12:37:01,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:37:01,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:37:01,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:01,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:37:01,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:37:01,778 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 462 out of 528 [2022-11-16 12:37:01,780 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 439 transitions, 888 flow. Second operand has 3 states, 3 states have (on average 463.3333333333333) internal successors, (1390), 3 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states 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 12:37:01,781 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:37:01,781 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 462 of 528 [2022-11-16 12:37:01,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:37:02,175 INFO L130 PetriNetUnfolder]: 223/1238 cut-off events. [2022-11-16 12:37:02,175 INFO L131 PetriNetUnfolder]: For 27/107 co-relation queries the response was YES. [2022-11-16 12:37:02,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1560 conditions, 1238 events. 223/1238 cut-off events. For 27/107 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 6550 event pairs, 128 based on Foata normal form. 0/1045 useless extension candidates. Maximal degree in co-relation 1523. Up to 299 conditions per place. [2022-11-16 12:37:02,188 INFO L137 encePairwiseOnDemand]: 520/528 looper letters, 24 selfloop transitions, 1 changer transitions 0/432 dead transitions. [2022-11-16 12:37:02,189 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 431 places, 432 transitions, 924 flow [2022-11-16 12:37:02,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:37:02,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:37:02,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1418 transitions. [2022-11-16 12:37:02,193 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8952020202020202 [2022-11-16 12:37:02,194 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1418 transitions. [2022-11-16 12:37:02,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1418 transitions. [2022-11-16 12:37:02,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:37:02,195 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1418 transitions. [2022-11-16 12:37:02,199 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 472.6666666666667) internal successors, (1418), 3 states have internal predecessors, (1418), 0 states have call successors, (0), 0 states 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 12:37:02,202 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 12:37:02,204 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 12:37:02,204 INFO L175 Difference]: Start difference. First operand has 445 places, 439 transitions, 888 flow. Second operand 3 states and 1418 transitions. [2022-11-16 12:37:02,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 431 places, 432 transitions, 924 flow [2022-11-16 12:37:02,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 429 places, 432 transitions, 920 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:37:02,214 INFO L231 Difference]: Finished difference. Result has 429 places, 432 transitions, 872 flow [2022-11-16 12:37:02,215 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=870, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=432, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=431, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=872, PETRI_PLACES=429, PETRI_TRANSITIONS=432} [2022-11-16 12:37:02,216 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -35 predicate places. [2022-11-16 12:37:02,216 INFO L495 AbstractCegarLoop]: Abstraction has has 429 places, 432 transitions, 872 flow [2022-11-16 12:37:02,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 463.3333333333333) internal successors, (1390), 3 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states 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 12:37:02,217 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:37:02,218 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] [2022-11-16 12:37:02,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:37:02,218 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 12:37:02,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:02,229 INFO L85 PathProgramCache]: Analyzing trace with hash 84698391, now seen corresponding path program 1 times [2022-11-16 12:37:02,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:02,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822800223] [2022-11-16 12:37:02,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:02,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:02,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:02,366 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 12:37:02,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:02,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822800223] [2022-11-16 12:37:02,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822800223] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:37:02,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:37:02,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:37:02,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986144809] [2022-11-16 12:37:02,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:37:02,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:37:02,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:02,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:37:02,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:37:02,376 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 468 out of 528 [2022-11-16 12:37:02,378 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 432 transitions, 872 flow. Second operand has 3 states, 3 states have (on average 469.3333333333333) internal successors, (1408), 3 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states 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 12:37:02,378 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:37:02,378 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 468 of 528 [2022-11-16 12:37:02,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:37:02,784 INFO L130 PetriNetUnfolder]: 157/1366 cut-off events. [2022-11-16 12:37:02,784 INFO L131 PetriNetUnfolder]: For 23/26 co-relation queries the response was YES. [2022-11-16 12:37:02,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1605 conditions, 1366 events. 157/1366 cut-off events. For 23/26 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 7571 event pairs, 78 based on Foata normal form. 0/1150 useless extension candidates. Maximal degree in co-relation 1569. Up to 212 conditions per place. [2022-11-16 12:37:02,799 INFO L137 encePairwiseOnDemand]: 525/528 looper letters, 24 selfloop transitions, 2 changer transitions 0/431 dead transitions. [2022-11-16 12:37:02,799 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 431 transitions, 922 flow [2022-11-16 12:37:02,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:37:02,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:37:02,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1431 transitions. [2022-11-16 12:37:02,803 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9034090909090909 [2022-11-16 12:37:02,804 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1431 transitions. [2022-11-16 12:37:02,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1431 transitions. [2022-11-16 12:37:02,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:37:02,805 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1431 transitions. [2022-11-16 12:37:02,809 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 477.0) internal successors, (1431), 3 states have internal predecessors, (1431), 0 states have call successors, (0), 0 states 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 12:37:02,813 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 12:37:02,814 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 12:37:02,815 INFO L175 Difference]: Start difference. First operand has 429 places, 432 transitions, 872 flow. Second operand 3 states and 1431 transitions. [2022-11-16 12:37:02,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 431 transitions, 922 flow [2022-11-16 12:37:02,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 429 places, 431 transitions, 921 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:37:02,823 INFO L231 Difference]: Finished difference. Result has 429 places, 431 transitions, 873 flow [2022-11-16 12:37:02,824 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=869, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=431, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=429, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=873, PETRI_PLACES=429, PETRI_TRANSITIONS=431} [2022-11-16 12:37:02,825 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -35 predicate places. [2022-11-16 12:37:02,825 INFO L495 AbstractCegarLoop]: Abstraction has has 429 places, 431 transitions, 873 flow [2022-11-16 12:37:02,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 469.3333333333333) internal successors, (1408), 3 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states 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 12:37:02,827 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:37:02,827 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 12:37:02,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:37:02,827 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 12:37:02,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:02,828 INFO L85 PathProgramCache]: Analyzing trace with hash -846826309, now seen corresponding path program 1 times [2022-11-16 12:37:02,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:02,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216366942] [2022-11-16 12:37:02,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:02,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:02,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:03,522 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 12:37:03,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:03,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216366942] [2022-11-16 12:37:03,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216366942] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:37:03,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:37:03,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:37:03,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007260340] [2022-11-16 12:37:03,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:37:03,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:37:03,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:03,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:37:03,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:37:03,534 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 528 [2022-11-16 12:37:03,537 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 431 transitions, 873 flow. Second operand has 6 states, 6 states have (on average 370.8333333333333) internal successors, (2225), 6 states have internal predecessors, (2225), 0 states have call successors, (0), 0 states 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 12:37:03,538 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:37:03,538 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 528 [2022-11-16 12:37:03,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:37:06,161 INFO L130 PetriNetUnfolder]: 2943/6655 cut-off events. [2022-11-16 12:37:06,161 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-16 12:37:06,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10875 conditions, 6655 events. 2943/6655 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 53058 event pairs, 2244 based on Foata normal form. 0/5729 useless extension candidates. Maximal degree in co-relation 10840. Up to 4124 conditions per place. [2022-11-16 12:37:06,286 INFO L137 encePairwiseOnDemand]: 510/528 looper letters, 108 selfloop transitions, 15 changer transitions 0/428 dead transitions. [2022-11-16 12:37:06,286 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 431 places, 428 transitions, 1113 flow [2022-11-16 12:37:06,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:37:06,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:37:06,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2340 transitions. [2022-11-16 12:37:06,293 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7386363636363636 [2022-11-16 12:37:06,293 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2340 transitions. [2022-11-16 12:37:06,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2340 transitions. [2022-11-16 12:37:06,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:37:06,295 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2340 transitions. [2022-11-16 12:37:06,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 390.0) internal successors, (2340), 6 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states 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 12:37:06,308 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states 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 12:37:06,311 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states 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 12:37:06,311 INFO L175 Difference]: Start difference. First operand has 429 places, 431 transitions, 873 flow. Second operand 6 states and 2340 transitions. [2022-11-16 12:37:06,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 431 places, 428 transitions, 1113 flow [2022-11-16 12:37:06,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 429 places, 428 transitions, 1109 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:37:06,319 INFO L231 Difference]: Finished difference. Result has 429 places, 428 transitions, 893 flow [2022-11-16 12:37:06,320 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=863, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=413, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=893, PETRI_PLACES=429, PETRI_TRANSITIONS=428} [2022-11-16 12:37:06,321 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -35 predicate places. [2022-11-16 12:37:06,321 INFO L495 AbstractCegarLoop]: Abstraction has has 429 places, 428 transitions, 893 flow [2022-11-16 12:37:06,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 370.8333333333333) internal successors, (2225), 6 states have internal predecessors, (2225), 0 states have call successors, (0), 0 states 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 12:37:06,323 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:37:06,323 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] [2022-11-16 12:37:06,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:37:06,324 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 12:37:06,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:06,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1901775103, now seen corresponding path program 1 times [2022-11-16 12:37:06,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:06,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736637571] [2022-11-16 12:37:06,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:06,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:06,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:06,409 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 12:37:06,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:06,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736637571] [2022-11-16 12:37:06,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736637571] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:37:06,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:37:06,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:37:06,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195180563] [2022-11-16 12:37:06,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:37:06,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:37:06,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:06,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:37:06,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:37:06,414 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 468 out of 528 [2022-11-16 12:37:06,416 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 428 transitions, 893 flow. Second operand has 3 states, 3 states have (on average 469.3333333333333) internal successors, (1408), 3 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states 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 12:37:06,416 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:37:06,416 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 468 of 528 [2022-11-16 12:37:06,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:37:06,792 INFO L130 PetriNetUnfolder]: 154/1308 cut-off events. [2022-11-16 12:37:06,793 INFO L131 PetriNetUnfolder]: For 20/23 co-relation queries the response was YES. [2022-11-16 12:37:06,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1556 conditions, 1308 events. 154/1308 cut-off events. For 20/23 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 6918 event pairs, 78 based on Foata normal form. 0/1105 useless extension candidates. Maximal degree in co-relation 1520. Up to 206 conditions per place. [2022-11-16 12:37:06,805 INFO L137 encePairwiseOnDemand]: 525/528 looper letters, 24 selfloop transitions, 2 changer transitions 0/427 dead transitions. [2022-11-16 12:37:06,805 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 427 transitions, 943 flow [2022-11-16 12:37:06,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:37:06,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:37:06,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1431 transitions. [2022-11-16 12:37:06,810 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9034090909090909 [2022-11-16 12:37:06,810 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1431 transitions. [2022-11-16 12:37:06,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1431 transitions. [2022-11-16 12:37:06,811 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:37:06,812 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1431 transitions. [2022-11-16 12:37:06,816 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 477.0) internal successors, (1431), 3 states have internal predecessors, (1431), 0 states have call successors, (0), 0 states 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 12:37:06,820 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 12:37:06,822 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 12:37:06,822 INFO L175 Difference]: Start difference. First operand has 429 places, 428 transitions, 893 flow. Second operand 3 states and 1431 transitions. [2022-11-16 12:37:06,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 427 transitions, 943 flow [2022-11-16 12:37:06,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 427 transitions, 913 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 12:37:06,832 INFO L231 Difference]: Finished difference. Result has 425 places, 427 transitions, 865 flow [2022-11-16 12:37:06,833 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=861, PETRI_DIFFERENCE_MINUEND_PLACES=423, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=427, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=865, PETRI_PLACES=425, PETRI_TRANSITIONS=427} [2022-11-16 12:37:06,834 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -39 predicate places. [2022-11-16 12:37:06,834 INFO L495 AbstractCegarLoop]: Abstraction has has 425 places, 427 transitions, 865 flow [2022-11-16 12:37:06,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 469.3333333333333) internal successors, (1408), 3 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states 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 12:37:06,835 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:37:06,835 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] [2022-11-16 12:37:06,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:37:06,836 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 12:37:06,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:06,837 INFO L85 PathProgramCache]: Analyzing trace with hash 169984604, now seen corresponding path program 1 times [2022-11-16 12:37:06,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:06,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610338111] [2022-11-16 12:37:06,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:06,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:06,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:06,912 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 12:37:06,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:06,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610338111] [2022-11-16 12:37:06,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610338111] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:37:06,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:37:06,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:37:06,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042332640] [2022-11-16 12:37:06,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:37:06,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:37:06,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:06,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:37:06,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:37:06,917 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 480 out of 528 [2022-11-16 12:37:06,920 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 425 places, 427 transitions, 865 flow. Second operand has 3 states, 3 states have (on average 481.3333333333333) internal successors, (1444), 3 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states 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 12:37:06,920 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:37:06,920 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 480 of 528 [2022-11-16 12:37:06,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:37:07,117 INFO L130 PetriNetUnfolder]: 37/530 cut-off events. [2022-11-16 12:37:07,118 INFO L131 PetriNetUnfolder]: For 14/17 co-relation queries the response was YES. [2022-11-16 12:37:07,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 589 conditions, 530 events. 37/530 cut-off events. For 14/17 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1118 event pairs, 12 based on Foata normal form. 0/473 useless extension candidates. Maximal degree in co-relation 553. Up to 48 conditions per place. [2022-11-16 12:37:07,123 INFO L137 encePairwiseOnDemand]: 525/528 looper letters, 12 selfloop transitions, 2 changer transitions 0/426 dead transitions. [2022-11-16 12:37:07,123 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 426 transitions, 891 flow [2022-11-16 12:37:07,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:37:07,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:37:07,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1455 transitions. [2022-11-16 12:37:07,128 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9185606060606061 [2022-11-16 12:37:07,129 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1455 transitions. [2022-11-16 12:37:07,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1455 transitions. [2022-11-16 12:37:07,130 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:37:07,131 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1455 transitions. [2022-11-16 12:37:07,135 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 485.0) internal successors, (1455), 3 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states 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 12:37:07,139 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 12:37:07,141 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 12:37:07,141 INFO L175 Difference]: Start difference. First operand has 425 places, 427 transitions, 865 flow. Second operand 3 states and 1455 transitions. [2022-11-16 12:37:07,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 426 transitions, 891 flow [2022-11-16 12:37:07,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 426 transitions, 887 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:37:07,151 INFO L231 Difference]: Finished difference. Result has 424 places, 426 transitions, 863 flow [2022-11-16 12:37:07,152 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=859, PETRI_DIFFERENCE_MINUEND_PLACES=422, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=426, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=424, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=863, PETRI_PLACES=424, PETRI_TRANSITIONS=426} [2022-11-16 12:37:07,153 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -40 predicate places. [2022-11-16 12:37:07,153 INFO L495 AbstractCegarLoop]: Abstraction has has 424 places, 426 transitions, 863 flow [2022-11-16 12:37:07,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 481.3333333333333) internal successors, (1444), 3 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states 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 12:37:07,155 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:37:07,155 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] [2022-11-16 12:37:07,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:37:07,156 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 12:37:07,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:07,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1408339223, now seen corresponding path program 1 times [2022-11-16 12:37:07,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:07,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855416196] [2022-11-16 12:37:07,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:07,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:07,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:07,226 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 12:37:07,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:07,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855416196] [2022-11-16 12:37:07,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855416196] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:37:07,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:37:07,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:37:07,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334579942] [2022-11-16 12:37:07,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:37:07,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:37:07,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:07,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:37:07,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:37:07,232 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 480 out of 528 [2022-11-16 12:37:07,234 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 426 transitions, 863 flow. Second operand has 3 states, 3 states have (on average 481.3333333333333) internal successors, (1444), 3 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states 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 12:37:07,235 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:37:07,235 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 480 of 528 [2022-11-16 12:37:07,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:37:07,443 INFO L130 PetriNetUnfolder]: 37/529 cut-off events. [2022-11-16 12:37:07,444 INFO L131 PetriNetUnfolder]: For 14/17 co-relation queries the response was YES. [2022-11-16 12:37:07,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 588 conditions, 529 events. 37/529 cut-off events. For 14/17 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1117 event pairs, 12 based on Foata normal form. 0/473 useless extension candidates. Maximal degree in co-relation 552. Up to 48 conditions per place. [2022-11-16 12:37:07,449 INFO L137 encePairwiseOnDemand]: 525/528 looper letters, 12 selfloop transitions, 2 changer transitions 0/425 dead transitions. [2022-11-16 12:37:07,449 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 425 transitions, 889 flow [2022-11-16 12:37:07,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:37:07,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:37:07,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1455 transitions. [2022-11-16 12:37:07,454 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9185606060606061 [2022-11-16 12:37:07,455 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1455 transitions. [2022-11-16 12:37:07,455 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1455 transitions. [2022-11-16 12:37:07,456 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:37:07,457 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1455 transitions. [2022-11-16 12:37:07,461 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 485.0) internal successors, (1455), 3 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states 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 12:37:07,465 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 12:37:07,467 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 12:37:07,467 INFO L175 Difference]: Start difference. First operand has 424 places, 426 transitions, 863 flow. Second operand 3 states and 1455 transitions. [2022-11-16 12:37:07,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 425 places, 425 transitions, 889 flow [2022-11-16 12:37:07,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 423 places, 425 transitions, 885 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:37:07,478 INFO L231 Difference]: Finished difference. Result has 423 places, 425 transitions, 861 flow [2022-11-16 12:37:07,479 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=857, PETRI_DIFFERENCE_MINUEND_PLACES=421, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=425, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=423, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=861, PETRI_PLACES=423, PETRI_TRANSITIONS=425} [2022-11-16 12:37:07,480 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -41 predicate places. [2022-11-16 12:37:07,480 INFO L495 AbstractCegarLoop]: Abstraction has has 423 places, 425 transitions, 861 flow [2022-11-16 12:37:07,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 481.3333333333333) internal successors, (1444), 3 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states 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 12:37:07,482 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:37:07,482 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] [2022-11-16 12:37:07,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:37:07,483 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 12:37:07,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:07,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1702728360, now seen corresponding path program 1 times [2022-11-16 12:37:07,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:07,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020339422] [2022-11-16 12:37:07,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:07,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:07,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:07,555 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 12:37:07,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:07,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020339422] [2022-11-16 12:37:07,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020339422] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:37:07,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:37:07,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:37:07,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024073340] [2022-11-16 12:37:07,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:37:07,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:37:07,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:07,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:37:07,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:37:07,560 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 471 out of 528 [2022-11-16 12:37:07,563 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 425 transitions, 861 flow. Second operand has 3 states, 3 states have (on average 472.3333333333333) internal successors, (1417), 3 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:07,563 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:37:07,564 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 471 of 528 [2022-11-16 12:37:07,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:37:07,987 INFO L130 PetriNetUnfolder]: 129/1285 cut-off events. [2022-11-16 12:37:07,988 INFO L131 PetriNetUnfolder]: For 23/26 co-relation queries the response was YES. [2022-11-16 12:37:07,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1469 conditions, 1285 events. 129/1285 cut-off events. For 23/26 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 6852 event pairs, 56 based on Foata normal form. 0/1105 useless extension candidates. Maximal degree in co-relation 1434. Up to 160 conditions per place. [2022-11-16 12:37:08,001 INFO L137 encePairwiseOnDemand]: 523/528 looper letters, 18 selfloop transitions, 1 changer transitions 0/421 dead transitions. [2022-11-16 12:37:08,027 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 421 transitions, 891 flow [2022-11-16 12:37:08,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:37:08,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:37:08,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1436 transitions. [2022-11-16 12:37:08,032 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9065656565656566 [2022-11-16 12:37:08,032 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1436 transitions. [2022-11-16 12:37:08,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1436 transitions. [2022-11-16 12:37:08,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:37:08,033 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1436 transitions. [2022-11-16 12:37:08,044 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 478.6666666666667) internal successors, (1436), 3 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states 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 12:37:08,048 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 12:37:08,049 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 12:37:08,050 INFO L175 Difference]: Start difference. First operand has 423 places, 425 transitions, 861 flow. Second operand 3 states and 1436 transitions. [2022-11-16 12:37:08,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 421 transitions, 891 flow [2022-11-16 12:37:08,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 421 transitions, 887 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:37:08,057 INFO L231 Difference]: Finished difference. Result has 419 places, 421 transitions, 851 flow [2022-11-16 12:37:08,058 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=849, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=851, PETRI_PLACES=419, PETRI_TRANSITIONS=421} [2022-11-16 12:37:08,062 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -45 predicate places. [2022-11-16 12:37:08,062 INFO L495 AbstractCegarLoop]: Abstraction has has 419 places, 421 transitions, 851 flow [2022-11-16 12:37:08,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 472.3333333333333) internal successors, (1417), 3 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:08,063 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:37:08,063 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] [2022-11-16 12:37:08,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:37:08,064 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 12:37:08,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:08,064 INFO L85 PathProgramCache]: Analyzing trace with hash 84189388, now seen corresponding path program 1 times [2022-11-16 12:37:08,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:08,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480406659] [2022-11-16 12:37:08,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:08,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:08,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:08,806 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 12:37:08,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:08,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480406659] [2022-11-16 12:37:08,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480406659] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:37:08,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:37:08,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:37:08,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93271401] [2022-11-16 12:37:08,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:37:08,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:37:08,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:08,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:37:08,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:37:08,812 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 396 out of 528 [2022-11-16 12:37:08,815 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 421 transitions, 851 flow. Second operand has 6 states, 6 states have (on average 397.3333333333333) internal successors, (2384), 6 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states 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 12:37:08,815 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:37:08,815 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 396 of 528 [2022-11-16 12:37:08,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:37:12,039 INFO L130 PetriNetUnfolder]: 3172/11360 cut-off events. [2022-11-16 12:37:12,039 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-11-16 12:37:12,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15924 conditions, 11360 events. 3172/11360 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 409. Compared 124356 event pairs, 924 based on Foata normal form. 0/10143 useless extension candidates. Maximal degree in co-relation 15888. Up to 2825 conditions per place. [2022-11-16 12:37:12,144 INFO L137 encePairwiseOnDemand]: 521/528 looper letters, 140 selfloop transitions, 5 changer transitions 0/470 dead transitions. [2022-11-16 12:37:12,145 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 470 transitions, 1243 flow [2022-11-16 12:37:12,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:37:12,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:37:12,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2523 transitions. [2022-11-16 12:37:12,153 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7964015151515151 [2022-11-16 12:37:12,153 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2523 transitions. [2022-11-16 12:37:12,153 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2523 transitions. [2022-11-16 12:37:12,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:37:12,156 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2523 transitions. [2022-11-16 12:37:12,163 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 420.5) internal successors, (2523), 6 states have internal predecessors, (2523), 0 states have call successors, (0), 0 states 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 12:37:12,171 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states 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 12:37:12,174 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states 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 12:37:12,174 INFO L175 Difference]: Start difference. First operand has 419 places, 421 transitions, 851 flow. Second operand 6 states and 2523 transitions. [2022-11-16 12:37:12,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 470 transitions, 1243 flow [2022-11-16 12:37:12,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 470 transitions, 1242 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:37:12,186 INFO L231 Difference]: Finished difference. Result has 422 places, 420 transitions, 862 flow [2022-11-16 12:37:12,188 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=846, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=862, PETRI_PLACES=422, PETRI_TRANSITIONS=420} [2022-11-16 12:37:12,189 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -42 predicate places. [2022-11-16 12:37:12,190 INFO L495 AbstractCegarLoop]: Abstraction has has 422 places, 420 transitions, 862 flow [2022-11-16 12:37:12,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 397.3333333333333) internal successors, (2384), 6 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states 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 12:37:12,191 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:37:12,191 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] [2022-11-16 12:37:12,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:37:12,192 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 12:37:12,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:12,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1088711712, now seen corresponding path program 1 times [2022-11-16 12:37:12,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:12,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928274852] [2022-11-16 12:37:12,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:12,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:12,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:12,278 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 12:37:12,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:12,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928274852] [2022-11-16 12:37:12,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928274852] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:37:12,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:37:12,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:37:12,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838644491] [2022-11-16 12:37:12,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:37:12,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:37:12,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:12,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:37:12,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:37:12,289 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 471 out of 528 [2022-11-16 12:37:12,291 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 420 transitions, 862 flow. Second operand has 3 states, 3 states have (on average 472.3333333333333) internal successors, (1417), 3 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:12,291 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:37:12,291 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 471 of 528 [2022-11-16 12:37:12,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:37:12,688 INFO L130 PetriNetUnfolder]: 162/1308 cut-off events. [2022-11-16 12:37:12,689 INFO L131 PetriNetUnfolder]: For 87/95 co-relation queries the response was YES. [2022-11-16 12:37:12,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1658 conditions, 1308 events. 162/1308 cut-off events. For 87/95 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 7001 event pairs, 80 based on Foata normal form. 0/1126 useless extension candidates. Maximal degree in co-relation 1621. Up to 224 conditions per place. [2022-11-16 12:37:12,701 INFO L137 encePairwiseOnDemand]: 525/528 looper letters, 22 selfloop transitions, 2 changer transitions 0/419 dead transitions. [2022-11-16 12:37:12,702 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 419 transitions, 908 flow [2022-11-16 12:37:12,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:37:12,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:37:12,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1437 transitions. [2022-11-16 12:37:12,707 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9071969696969697 [2022-11-16 12:37:12,707 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1437 transitions. [2022-11-16 12:37:12,707 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1437 transitions. [2022-11-16 12:37:12,708 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:37:12,709 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1437 transitions. [2022-11-16 12:37:12,712 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 479.0) internal successors, (1437), 3 states have internal predecessors, (1437), 0 states have call successors, (0), 0 states 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 12:37:12,716 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 12:37:12,717 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 12:37:12,717 INFO L175 Difference]: Start difference. First operand has 422 places, 420 transitions, 862 flow. Second operand 3 states and 1437 transitions. [2022-11-16 12:37:12,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 419 transitions, 908 flow [2022-11-16 12:37:12,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 419 transitions, 900 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 12:37:12,728 INFO L231 Difference]: Finished difference. Result has 419 places, 419 transitions, 856 flow [2022-11-16 12:37:12,729 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=852, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=417, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=856, PETRI_PLACES=419, PETRI_TRANSITIONS=419} [2022-11-16 12:37:12,731 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -45 predicate places. [2022-11-16 12:37:12,731 INFO L495 AbstractCegarLoop]: Abstraction has has 419 places, 419 transitions, 856 flow [2022-11-16 12:37:12,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 472.3333333333333) internal successors, (1417), 3 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:12,732 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:37:12,732 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] [2022-11-16 12:37:12,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 12:37:12,733 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 12:37:12,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:12,733 INFO L85 PathProgramCache]: Analyzing trace with hash -543481836, now seen corresponding path program 1 times [2022-11-16 12:37:12,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:12,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263472397] [2022-11-16 12:37:12,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:12,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:12,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:12,820 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 12:37:12,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:12,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263472397] [2022-11-16 12:37:12,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263472397] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:37:12,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:37:12,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:37:12,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440456307] [2022-11-16 12:37:12,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:37:12,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:37:12,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:12,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:37:12,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:37:12,828 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 471 out of 528 [2022-11-16 12:37:12,830 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 419 transitions, 856 flow. Second operand has 3 states, 3 states have (on average 472.3333333333333) internal successors, (1417), 3 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:12,830 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:37:12,830 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 471 of 528 [2022-11-16 12:37:12,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:37:13,187 INFO L130 PetriNetUnfolder]: 131/1285 cut-off events. [2022-11-16 12:37:13,187 INFO L131 PetriNetUnfolder]: For 68/73 co-relation queries the response was YES. [2022-11-16 12:37:13,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1522 conditions, 1285 events. 131/1285 cut-off events. For 68/73 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 6904 event pairs, 58 based on Foata normal form. 0/1125 useless extension candidates. Maximal degree in co-relation 1486. Up to 164 conditions per place. [2022-11-16 12:37:13,200 INFO L137 encePairwiseOnDemand]: 523/528 looper letters, 19 selfloop transitions, 1 changer transitions 0/415 dead transitions. [2022-11-16 12:37:13,200 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 415 transitions, 888 flow [2022-11-16 12:37:13,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:37:13,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:37:13,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1436 transitions. [2022-11-16 12:37:13,205 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9065656565656566 [2022-11-16 12:37:13,205 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1436 transitions. [2022-11-16 12:37:13,205 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1436 transitions. [2022-11-16 12:37:13,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:37:13,207 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1436 transitions. [2022-11-16 12:37:13,211 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 478.6666666666667) internal successors, (1436), 3 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states 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 12:37:13,215 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 12:37:13,216 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 12:37:13,216 INFO L175 Difference]: Start difference. First operand has 419 places, 419 transitions, 856 flow. Second operand 3 states and 1436 transitions. [2022-11-16 12:37:13,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 415 transitions, 888 flow [2022-11-16 12:37:13,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 415 places, 415 transitions, 884 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:37:13,226 INFO L231 Difference]: Finished difference. Result has 415 places, 415 transitions, 846 flow [2022-11-16 12:37:13,227 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=844, PETRI_DIFFERENCE_MINUEND_PLACES=413, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=415, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=846, PETRI_PLACES=415, PETRI_TRANSITIONS=415} [2022-11-16 12:37:13,228 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -49 predicate places. [2022-11-16 12:37:13,228 INFO L495 AbstractCegarLoop]: Abstraction has has 415 places, 415 transitions, 846 flow [2022-11-16 12:37:13,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 472.3333333333333) internal successors, (1417), 3 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:13,229 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:37:13,230 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] [2022-11-16 12:37:13,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 12:37:13,230 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 12:37:13,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:13,232 INFO L85 PathProgramCache]: Analyzing trace with hash -545976828, now seen corresponding path program 1 times [2022-11-16 12:37:13,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:13,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715560005] [2022-11-16 12:37:13,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:13,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:13,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:13,929 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 12:37:13,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:13,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715560005] [2022-11-16 12:37:13,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715560005] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:37:13,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:37:13,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:37:13,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669564065] [2022-11-16 12:37:13,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:37:13,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:37:13,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:13,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:37:13,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:37:13,935 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 396 out of 528 [2022-11-16 12:37:13,938 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 415 places, 415 transitions, 846 flow. Second operand has 6 states, 6 states have (on average 398.1666666666667) internal successors, (2389), 6 states have internal predecessors, (2389), 0 states have call successors, (0), 0 states 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 12:37:13,938 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:37:13,938 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 396 of 528 [2022-11-16 12:37:13,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:37:17,362 INFO L130 PetriNetUnfolder]: 3172/11292 cut-off events. [2022-11-16 12:37:17,362 INFO L131 PetriNetUnfolder]: For 1242/1242 co-relation queries the response was YES. [2022-11-16 12:37:17,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17087 conditions, 11292 events. 3172/11292 cut-off events. For 1242/1242 co-relation queries the response was YES. Maximal size of possible extension queue 423. Compared 123407 event pairs, 924 based on Foata normal form. 0/10123 useless extension candidates. Maximal degree in co-relation 17050. Up to 2830 conditions per place. [2022-11-16 12:37:17,438 INFO L137 encePairwiseOnDemand]: 521/528 looper letters, 138 selfloop transitions, 5 changer transitions 0/463 dead transitions. [2022-11-16 12:37:17,438 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 463 transitions, 1232 flow [2022-11-16 12:37:17,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:37:17,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:37:17,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2521 transitions. [2022-11-16 12:37:17,444 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.795770202020202 [2022-11-16 12:37:17,445 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2521 transitions. [2022-11-16 12:37:17,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2521 transitions. [2022-11-16 12:37:17,447 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:37:17,447 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2521 transitions. [2022-11-16 12:37:17,452 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 420.1666666666667) internal successors, (2521), 6 states have internal predecessors, (2521), 0 states have call successors, (0), 0 states 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 12:37:17,458 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states 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 12:37:17,459 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states 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 12:37:17,460 INFO L175 Difference]: Start difference. First operand has 415 places, 415 transitions, 846 flow. Second operand 6 states and 2521 transitions. [2022-11-16 12:37:17,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 463 transitions, 1232 flow [2022-11-16 12:37:17,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 463 transitions, 1231 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:37:17,469 INFO L231 Difference]: Finished difference. Result has 417 places, 413 transitions, 851 flow [2022-11-16 12:37:17,470 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=841, PETRI_DIFFERENCE_MINUEND_PLACES=412, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=413, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=851, PETRI_PLACES=417, PETRI_TRANSITIONS=413} [2022-11-16 12:37:17,471 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -47 predicate places. [2022-11-16 12:37:17,471 INFO L495 AbstractCegarLoop]: Abstraction has has 417 places, 413 transitions, 851 flow [2022-11-16 12:37:17,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 398.1666666666667) internal successors, (2389), 6 states have internal predecessors, (2389), 0 states have call successors, (0), 0 states 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 12:37:17,472 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:37:17,472 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] [2022-11-16 12:37:17,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 12:37:17,473 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 12:37:17,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:17,473 INFO L85 PathProgramCache]: Analyzing trace with hash -460420730, now seen corresponding path program 1 times [2022-11-16 12:37:17,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:17,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922880576] [2022-11-16 12:37:17,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:17,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:17,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:17,537 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 12:37:17,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:17,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922880576] [2022-11-16 12:37:17,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922880576] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:37:17,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:37:17,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:37:17,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652245751] [2022-11-16 12:37:17,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:37:17,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:37:17,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:17,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:37:17,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:37:17,542 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 471 out of 528 [2022-11-16 12:37:17,543 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 413 transitions, 851 flow. Second operand has 3 states, 3 states have (on average 472.3333333333333) internal successors, (1417), 3 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:17,543 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:37:17,544 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 471 of 528 [2022-11-16 12:37:17,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:37:17,919 INFO L130 PetriNetUnfolder]: 161/1312 cut-off events. [2022-11-16 12:37:17,919 INFO L131 PetriNetUnfolder]: For 146/151 co-relation queries the response was YES. [2022-11-16 12:37:17,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1656 conditions, 1312 events. 161/1312 cut-off events. For 146/151 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 7111 event pairs, 80 based on Foata normal form. 0/1148 useless extension candidates. Maximal degree in co-relation 1619. Up to 216 conditions per place. [2022-11-16 12:37:17,930 INFO L137 encePairwiseOnDemand]: 525/528 looper letters, 21 selfloop transitions, 2 changer transitions 0/412 dead transitions. [2022-11-16 12:37:17,930 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 412 transitions, 895 flow [2022-11-16 12:37:17,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:37:17,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:37:17,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1436 transitions. [2022-11-16 12:37:17,934 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9065656565656566 [2022-11-16 12:37:17,934 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1436 transitions. [2022-11-16 12:37:17,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1436 transitions. [2022-11-16 12:37:17,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:37:17,936 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1436 transitions. [2022-11-16 12:37:17,939 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 478.6666666666667) internal successors, (1436), 3 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states 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 12:37:17,942 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 12:37:17,942 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 12:37:17,943 INFO L175 Difference]: Start difference. First operand has 417 places, 413 transitions, 851 flow. Second operand 3 states and 1436 transitions. [2022-11-16 12:37:17,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 412 transitions, 895 flow [2022-11-16 12:37:17,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 413 places, 412 transitions, 885 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 12:37:17,950 INFO L231 Difference]: Finished difference. Result has 413 places, 412 transitions, 843 flow [2022-11-16 12:37:17,951 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=839, PETRI_DIFFERENCE_MINUEND_PLACES=411, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=412, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=843, PETRI_PLACES=413, PETRI_TRANSITIONS=412} [2022-11-16 12:37:17,952 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -51 predicate places. [2022-11-16 12:37:17,952 INFO L495 AbstractCegarLoop]: Abstraction has has 413 places, 412 transitions, 843 flow [2022-11-16 12:37:17,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 472.3333333333333) internal successors, (1417), 3 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:17,953 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:37:17,953 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] [2022-11-16 12:37:17,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 12:37:17,954 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 12:37:17,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:17,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1834400030, now seen corresponding path program 1 times [2022-11-16 12:37:17,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:17,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449161473] [2022-11-16 12:37:17,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:17,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:17,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:18,030 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 12:37:18,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:18,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449161473] [2022-11-16 12:37:18,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449161473] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:37:18,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:37:18,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:37:18,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039663766] [2022-11-16 12:37:18,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:37:18,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:37:18,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:18,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:37:18,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:37:18,035 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 477 out of 528 [2022-11-16 12:37:18,037 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 413 places, 412 transitions, 843 flow. Second operand has 3 states, 3 states have (on average 478.3333333333333) internal successors, (1435), 3 states have internal predecessors, (1435), 0 states have call successors, (0), 0 states 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 12:37:18,037 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:37:18,037 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 477 of 528 [2022-11-16 12:37:18,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:37:18,222 INFO L130 PetriNetUnfolder]: 39/554 cut-off events. [2022-11-16 12:37:18,222 INFO L131 PetriNetUnfolder]: For 30/35 co-relation queries the response was YES. [2022-11-16 12:37:18,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 643 conditions, 554 events. 39/554 cut-off events. For 30/35 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1283 event pairs, 14 based on Foata normal form. 0/507 useless extension candidates. Maximal degree in co-relation 606. Up to 60 conditions per place. [2022-11-16 12:37:18,226 INFO L137 encePairwiseOnDemand]: 525/528 looper letters, 16 selfloop transitions, 2 changer transitions 0/411 dead transitions. [2022-11-16 12:37:18,227 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 414 places, 411 transitions, 877 flow [2022-11-16 12:37:18,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:37:18,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:37:18,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1449 transitions. [2022-11-16 12:37:18,231 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9147727272727273 [2022-11-16 12:37:18,231 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1449 transitions. [2022-11-16 12:37:18,231 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1449 transitions. [2022-11-16 12:37:18,232 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:37:18,232 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1449 transitions. [2022-11-16 12:37:18,235 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 483.0) internal successors, (1449), 3 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states 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 12:37:18,238 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 12:37:18,239 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 12:37:18,239 INFO L175 Difference]: Start difference. First operand has 413 places, 412 transitions, 843 flow. Second operand 3 states and 1449 transitions. [2022-11-16 12:37:18,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 414 places, 411 transitions, 877 flow [2022-11-16 12:37:18,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 412 places, 411 transitions, 873 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:37:18,247 INFO L231 Difference]: Finished difference. Result has 412 places, 411 transitions, 841 flow [2022-11-16 12:37:18,248 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=837, PETRI_DIFFERENCE_MINUEND_PLACES=410, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=841, PETRI_PLACES=412, PETRI_TRANSITIONS=411} [2022-11-16 12:37:18,248 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -52 predicate places. [2022-11-16 12:37:18,249 INFO L495 AbstractCegarLoop]: Abstraction has has 412 places, 411 transitions, 841 flow [2022-11-16 12:37:18,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 478.3333333333333) internal successors, (1435), 3 states have internal predecessors, (1435), 0 states have call successors, (0), 0 states 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 12:37:18,249 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:37:18,250 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] [2022-11-16 12:37:18,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 12:37:18,250 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 12:37:18,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:18,251 INFO L85 PathProgramCache]: Analyzing trace with hash 665529338, now seen corresponding path program 1 times [2022-11-16 12:37:18,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:18,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040453875] [2022-11-16 12:37:18,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:18,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:18,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:18,329 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 12:37:18,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:18,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040453875] [2022-11-16 12:37:18,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040453875] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:37:18,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:37:18,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:37:18,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974251221] [2022-11-16 12:37:18,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:37:18,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:37:18,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:18,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:37:18,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:37:18,334 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 474 out of 528 [2022-11-16 12:37:18,335 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 412 places, 411 transitions, 841 flow. Second operand has 3 states, 3 states have (on average 475.6666666666667) internal successors, (1427), 3 states have internal predecessors, (1427), 0 states have call successors, (0), 0 states 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 12:37:18,335 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:37:18,335 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 474 of 528 [2022-11-16 12:37:18,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:37:18,707 INFO L130 PetriNetUnfolder]: 179/1384 cut-off events. [2022-11-16 12:37:18,707 INFO L131 PetriNetUnfolder]: For 98/111 co-relation queries the response was YES. [2022-11-16 12:37:18,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1708 conditions, 1384 events. 179/1384 cut-off events. For 98/111 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 7593 event pairs, 62 based on Foata normal form. 0/1208 useless extension candidates. Maximal degree in co-relation 1672. Up to 131 conditions per place. [2022-11-16 12:37:18,719 INFO L137 encePairwiseOnDemand]: 523/528 looper letters, 27 selfloop transitions, 3 changer transitions 0/420 dead transitions. [2022-11-16 12:37:18,720 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 412 places, 420 transitions, 928 flow [2022-11-16 12:37:18,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:37:18,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:37:18,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1452 transitions. [2022-11-16 12:37:18,724 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9166666666666666 [2022-11-16 12:37:18,724 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1452 transitions. [2022-11-16 12:37:18,724 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1452 transitions. [2022-11-16 12:37:18,725 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:37:18,725 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1452 transitions. [2022-11-16 12:37:18,728 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 484.0) internal successors, (1452), 3 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:18,731 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 12:37:18,732 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 12:37:18,732 INFO L175 Difference]: Start difference. First operand has 412 places, 411 transitions, 841 flow. Second operand 3 states and 1452 transitions. [2022-11-16 12:37:18,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 412 places, 420 transitions, 928 flow [2022-11-16 12:37:18,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 410 places, 420 transitions, 924 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:37:18,740 INFO L231 Difference]: Finished difference. Result has 411 places, 411 transitions, 850 flow [2022-11-16 12:37:18,741 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=833, PETRI_DIFFERENCE_MINUEND_PLACES=408, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=409, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=406, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=850, PETRI_PLACES=411, PETRI_TRANSITIONS=411} [2022-11-16 12:37:18,742 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -53 predicate places. [2022-11-16 12:37:18,742 INFO L495 AbstractCegarLoop]: Abstraction has has 411 places, 411 transitions, 850 flow [2022-11-16 12:37:18,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 475.6666666666667) internal successors, (1427), 3 states have internal predecessors, (1427), 0 states have call successors, (0), 0 states 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 12:37:18,743 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:37:18,743 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, 1, 1, 1] [2022-11-16 12:37:18,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 12:37:18,743 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 12:37:18,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:18,744 INFO L85 PathProgramCache]: Analyzing trace with hash 36186144, now seen corresponding path program 1 times [2022-11-16 12:37:18,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:18,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303685413] [2022-11-16 12:37:18,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:18,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:18,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:19,019 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 12:37:19,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:19,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303685413] [2022-11-16 12:37:19,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303685413] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:37:19,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:37:19,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:37:19,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619594217] [2022-11-16 12:37:19,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:37:19,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:37:19,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:19,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:37:19,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:37:19,028 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 392 out of 528 [2022-11-16 12:37:19,031 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 411 places, 411 transitions, 850 flow. Second operand has 7 states, 7 states have (on average 397.14285714285717) internal successors, (2780), 7 states have internal predecessors, (2780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:19,031 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:37:19,031 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 392 of 528 [2022-11-16 12:37:19,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:37:22,733 INFO L130 PetriNetUnfolder]: 5052/12147 cut-off events. [2022-11-16 12:37:22,733 INFO L131 PetriNetUnfolder]: For 858/952 co-relation queries the response was YES. [2022-11-16 12:37:22,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20664 conditions, 12147 events. 5052/12147 cut-off events. For 858/952 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 101312 event pairs, 3443 based on Foata normal form. 1/9696 useless extension candidates. Maximal degree in co-relation 20626. Up to 6311 conditions per place. [2022-11-16 12:37:22,848 INFO L137 encePairwiseOnDemand]: 509/528 looper letters, 211 selfloop transitions, 28 changer transitions 0/549 dead transitions. [2022-11-16 12:37:22,848 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 549 transitions, 1636 flow [2022-11-16 12:37:22,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:37:22,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 12:37:22,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4548 transitions. [2022-11-16 12:37:22,861 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7830578512396694 [2022-11-16 12:37:22,861 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4548 transitions. [2022-11-16 12:37:22,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4548 transitions. [2022-11-16 12:37:22,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:37:22,865 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4548 transitions. [2022-11-16 12:37:22,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 413.45454545454544) internal successors, (4548), 11 states have internal predecessors, (4548), 0 states have call successors, (0), 0 states 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 12:37:22,887 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 528.0) internal successors, (6336), 12 states have internal predecessors, (6336), 0 states have call successors, (0), 0 states 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 12:37:22,889 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 528.0) internal successors, (6336), 12 states have internal predecessors, (6336), 0 states have call successors, (0), 0 states 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 12:37:22,891 INFO L175 Difference]: Start difference. First operand has 411 places, 411 transitions, 850 flow. Second operand 11 states and 4548 transitions. [2022-11-16 12:37:22,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 549 transitions, 1636 flow [2022-11-16 12:37:22,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 549 transitions, 1633 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:37:22,905 INFO L231 Difference]: Finished difference. Result has 424 places, 428 transitions, 980 flow [2022-11-16 12:37:22,905 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=847, PETRI_DIFFERENCE_MINUEND_PLACES=410, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=393, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=980, PETRI_PLACES=424, PETRI_TRANSITIONS=428} [2022-11-16 12:37:22,906 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -40 predicate places. [2022-11-16 12:37:22,908 INFO L495 AbstractCegarLoop]: Abstraction has has 424 places, 428 transitions, 980 flow [2022-11-16 12:37:22,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 397.14285714285717) internal successors, (2780), 7 states have internal predecessors, (2780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:22,910 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:37:22,910 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:37:22,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 12:37:22,910 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 12:37:22,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:22,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1534992727, now seen corresponding path program 1 times [2022-11-16 12:37:22,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:22,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242939100] [2022-11-16 12:37:22,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:22,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:22,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:23,681 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 12:37:23,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:23,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242939100] [2022-11-16 12:37:23,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242939100] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:37:23,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:37:23,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:37:23,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204854116] [2022-11-16 12:37:23,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:37:23,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:37:23,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:23,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:37:23,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:37:23,686 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 396 out of 528 [2022-11-16 12:37:23,688 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 428 transitions, 980 flow. Second operand has 6 states, 6 states have (on average 401.3333333333333) internal successors, (2408), 6 states have internal predecessors, (2408), 0 states have call successors, (0), 0 states 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 12:37:23,689 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:37:23,689 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 396 of 528 [2022-11-16 12:37:23,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:37:28,776 INFO L130 PetriNetUnfolder]: 6676/14217 cut-off events. [2022-11-16 12:37:28,776 INFO L131 PetriNetUnfolder]: For 2786/2846 co-relation queries the response was YES. [2022-11-16 12:37:28,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26970 conditions, 14217 events. 6676/14217 cut-off events. For 2786/2846 co-relation queries the response was YES. Maximal size of possible extension queue 328. Compared 114792 event pairs, 2122 based on Foata normal form. 48/13059 useless extension candidates. Maximal degree in co-relation 26925. Up to 5895 conditions per place. [2022-11-16 12:37:28,896 INFO L137 encePairwiseOnDemand]: 521/528 looper letters, 209 selfloop transitions, 13 changer transitions 0/559 dead transitions. [2022-11-16 12:37:28,896 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 429 places, 559 transitions, 1705 flow [2022-11-16 12:37:28,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:37:28,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:37:28,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2594 transitions. [2022-11-16 12:37:28,902 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8188131313131313 [2022-11-16 12:37:28,902 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2594 transitions. [2022-11-16 12:37:28,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2594 transitions. [2022-11-16 12:37:28,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:37:28,904 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2594 transitions. [2022-11-16 12:37:28,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 432.3333333333333) internal successors, (2594), 6 states have internal predecessors, (2594), 0 states have call successors, (0), 0 states 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 12:37:28,913 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states 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 12:37:28,915 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states 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 12:37:28,915 INFO L175 Difference]: Start difference. First operand has 424 places, 428 transitions, 980 flow. Second operand 6 states and 2594 transitions. [2022-11-16 12:37:28,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 429 places, 559 transitions, 1705 flow [2022-11-16 12:37:28,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 427 places, 559 transitions, 1700 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:37:28,930 INFO L231 Difference]: Finished difference. Result has 432 places, 440 transitions, 1081 flow [2022-11-16 12:37:28,930 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=975, PETRI_DIFFERENCE_MINUEND_PLACES=422, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1081, PETRI_PLACES=432, PETRI_TRANSITIONS=440} [2022-11-16 12:37:28,931 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -32 predicate places. [2022-11-16 12:37:28,931 INFO L495 AbstractCegarLoop]: Abstraction has has 432 places, 440 transitions, 1081 flow [2022-11-16 12:37:28,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 401.3333333333333) internal successors, (2408), 6 states have internal predecessors, (2408), 0 states have call successors, (0), 0 states 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 12:37:28,932 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:37:28,932 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:37:28,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 12:37:28,933 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 12:37:28,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:28,933 INFO L85 PathProgramCache]: Analyzing trace with hash -338838976, now seen corresponding path program 1 times [2022-11-16 12:37:28,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:28,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222491009] [2022-11-16 12:37:28,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:28,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:28,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:29,193 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 12:37:29,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:29,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222491009] [2022-11-16 12:37:29,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222491009] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:37:29,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:37:29,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:37:29,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469497852] [2022-11-16 12:37:29,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:37:29,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:37:29,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:29,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:37:29,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:37:29,199 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 420 out of 528 [2022-11-16 12:37:29,202 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 440 transitions, 1081 flow. Second operand has 7 states, 7 states have (on average 424.7142857142857) internal successors, (2973), 7 states have internal predecessors, (2973), 0 states have call successors, (0), 0 states 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 12:37:29,202 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:37:29,203 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 420 of 528 [2022-11-16 12:37:29,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:37:31,749 INFO L130 PetriNetUnfolder]: 3124/7596 cut-off events. [2022-11-16 12:37:31,749 INFO L131 PetriNetUnfolder]: For 4452/5151 co-relation queries the response was YES. [2022-11-16 12:37:31,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14659 conditions, 7596 events. 3124/7596 cut-off events. For 4452/5151 co-relation queries the response was YES. Maximal size of possible extension queue 370. Compared 57147 event pairs, 1719 based on Foata normal form. 39/5923 useless extension candidates. Maximal degree in co-relation 14612. Up to 3889 conditions per place. [2022-11-16 12:37:31,823 INFO L137 encePairwiseOnDemand]: 509/528 looper letters, 179 selfloop transitions, 28 changer transitions 0/551 dead transitions. [2022-11-16 12:37:31,823 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 551 transitions, 1749 flow [2022-11-16 12:37:31,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:37:31,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 12:37:31,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4820 transitions. [2022-11-16 12:37:31,832 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8298898071625345 [2022-11-16 12:37:31,832 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4820 transitions. [2022-11-16 12:37:31,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4820 transitions. [2022-11-16 12:37:31,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:37:31,835 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4820 transitions. [2022-11-16 12:37:31,842 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 438.1818181818182) internal successors, (4820), 11 states have internal predecessors, (4820), 0 states have call successors, (0), 0 states 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 12:37:31,850 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 528.0) internal successors, (6336), 12 states have internal predecessors, (6336), 0 states have call successors, (0), 0 states 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 12:37:31,852 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 528.0) internal successors, (6336), 12 states have internal predecessors, (6336), 0 states have call successors, (0), 0 states 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 12:37:31,852 INFO L175 Difference]: Start difference. First operand has 432 places, 440 transitions, 1081 flow. Second operand 11 states and 4820 transitions. [2022-11-16 12:37:31,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 551 transitions, 1749 flow [2022-11-16 12:37:31,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 442 places, 551 transitions, 1749 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:37:31,865 INFO L231 Difference]: Finished difference. Result has 444 places, 442 transitions, 1149 flow [2022-11-16 12:37:31,866 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=1081, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=413, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1149, PETRI_PLACES=444, PETRI_TRANSITIONS=442} [2022-11-16 12:37:31,867 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -20 predicate places. [2022-11-16 12:37:31,867 INFO L495 AbstractCegarLoop]: Abstraction has has 444 places, 442 transitions, 1149 flow [2022-11-16 12:37:31,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 424.7142857142857) internal successors, (2973), 7 states have internal predecessors, (2973), 0 states have call successors, (0), 0 states 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 12:37:31,868 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:37:31,868 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, 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 12:37:31,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 12:37:31,869 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 12:37:31,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:31,869 INFO L85 PathProgramCache]: Analyzing trace with hash -964379768, now seen corresponding path program 1 times [2022-11-16 12:37:31,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:31,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501970907] [2022-11-16 12:37:31,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:31,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:31,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:32,710 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 12:37:32,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:32,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501970907] [2022-11-16 12:37:32,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501970907] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:37:32,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:37:32,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:37:32,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100320651] [2022-11-16 12:37:32,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:37:32,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:37:32,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:32,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:37:32,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:37:32,716 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 396 out of 528 [2022-11-16 12:37:32,718 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 442 transitions, 1149 flow. Second operand has 6 states, 6 states have (on average 402.3333333333333) internal successors, (2414), 6 states have internal predecessors, (2414), 0 states have call successors, (0), 0 states 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 12:37:32,718 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:37:32,718 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 396 of 528 [2022-11-16 12:37:32,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:37:37,615 INFO L130 PetriNetUnfolder]: 5873/15054 cut-off events. [2022-11-16 12:37:37,615 INFO L131 PetriNetUnfolder]: For 13951/14038 co-relation queries the response was YES. [2022-11-16 12:37:37,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32839 conditions, 15054 events. 5873/15054 cut-off events. For 13951/14038 co-relation queries the response was YES. Maximal size of possible extension queue 391. Compared 140585 event pairs, 3463 based on Foata normal form. 12/13948 useless extension candidates. Maximal degree in co-relation 32787. Up to 7909 conditions per place. [2022-11-16 12:37:37,766 INFO L137 encePairwiseOnDemand]: 521/528 looper letters, 118 selfloop transitions, 17 changer transitions 0/474 dead transitions. [2022-11-16 12:37:37,766 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 449 places, 474 transitions, 1549 flow [2022-11-16 12:37:37,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:37:37,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:37:37,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2491 transitions. [2022-11-16 12:37:37,773 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7863005050505051 [2022-11-16 12:37:37,773 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2491 transitions. [2022-11-16 12:37:37,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2491 transitions. [2022-11-16 12:37:37,774 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:37:37,775 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2491 transitions. [2022-11-16 12:37:37,779 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 415.1666666666667) internal successors, (2491), 6 states have internal predecessors, (2491), 0 states have call successors, (0), 0 states 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 12:37:37,784 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states 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 12:37:37,786 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states 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 12:37:37,786 INFO L175 Difference]: Start difference. First operand has 444 places, 442 transitions, 1149 flow. Second operand 6 states and 2491 transitions. [2022-11-16 12:37:37,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 449 places, 474 transitions, 1549 flow [2022-11-16 12:37:37,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 474 transitions, 1524 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 12:37:37,820 INFO L231 Difference]: Finished difference. Result has 449 places, 458 transitions, 1304 flow [2022-11-16 12:37:37,821 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=1124, PETRI_DIFFERENCE_MINUEND_PLACES=439, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=442, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=434, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1304, PETRI_PLACES=449, PETRI_TRANSITIONS=458} [2022-11-16 12:37:37,821 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -15 predicate places. [2022-11-16 12:37:37,822 INFO L495 AbstractCegarLoop]: Abstraction has has 449 places, 458 transitions, 1304 flow [2022-11-16 12:37:37,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 402.3333333333333) internal successors, (2414), 6 states have internal predecessors, (2414), 0 states have call successors, (0), 0 states 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 12:37:37,823 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:37:37,823 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:37:37,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-16 12:37:37,823 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 12:37:37,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:37,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1341699162, now seen corresponding path program 1 times [2022-11-16 12:37:37,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:37,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449972290] [2022-11-16 12:37:37,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:37,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:37,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:38,714 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 12:37:38,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:38,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449972290] [2022-11-16 12:37:38,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449972290] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:37:38,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:37:38,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:37:38,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530638011] [2022-11-16 12:37:38,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:37:38,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:37:38,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:38,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:37:38,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:37:38,720 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 396 out of 528 [2022-11-16 12:37:38,722 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 458 transitions, 1304 flow. Second operand has 6 states, 6 states have (on average 403.3333333333333) internal successors, (2420), 6 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states 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 12:37:38,722 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:37:38,723 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 396 of 528 [2022-11-16 12:37:38,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:37:43,909 INFO L130 PetriNetUnfolder]: 5953/15203 cut-off events. [2022-11-16 12:37:43,909 INFO L131 PetriNetUnfolder]: For 19036/19159 co-relation queries the response was YES. [2022-11-16 12:37:44,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34957 conditions, 15203 events. 5953/15203 cut-off events. For 19036/19159 co-relation queries the response was YES. Maximal size of possible extension queue 400. Compared 141912 event pairs, 3606 based on Foata normal form. 0/14108 useless extension candidates. Maximal degree in co-relation 34903. Up to 8233 conditions per place. [2022-11-16 12:37:44,100 INFO L137 encePairwiseOnDemand]: 523/528 looper letters, 122 selfloop transitions, 4 changer transitions 0/465 dead transitions. [2022-11-16 12:37:44,100 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 453 places, 465 transitions, 1570 flow [2022-11-16 12:37:44,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:37:44,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:37:44,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2474 transitions. [2022-11-16 12:37:44,108 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7809343434343434 [2022-11-16 12:37:44,108 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2474 transitions. [2022-11-16 12:37:44,108 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2474 transitions. [2022-11-16 12:37:44,110 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:37:44,110 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2474 transitions. [2022-11-16 12:37:44,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 412.3333333333333) internal successors, (2474), 6 states have internal predecessors, (2474), 0 states have call successors, (0), 0 states 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 12:37:44,122 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states 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 12:37:44,124 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states 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 12:37:44,125 INFO L175 Difference]: Start difference. First operand has 449 places, 458 transitions, 1304 flow. Second operand 6 states and 2474 transitions. [2022-11-16 12:37:44,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 453 places, 465 transitions, 1570 flow [2022-11-16 12:37:44,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 465 transitions, 1570 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:37:44,186 INFO L231 Difference]: Finished difference. Result has 453 places, 457 transitions, 1310 flow [2022-11-16 12:37:44,187 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=1302, PETRI_DIFFERENCE_MINUEND_PLACES=448, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=457, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=453, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1310, PETRI_PLACES=453, PETRI_TRANSITIONS=457} [2022-11-16 12:37:44,188 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -11 predicate places. [2022-11-16 12:37:44,188 INFO L495 AbstractCegarLoop]: Abstraction has has 453 places, 457 transitions, 1310 flow [2022-11-16 12:37:44,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 403.3333333333333) internal successors, (2420), 6 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states 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 12:37:44,189 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:37:44,189 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:37:44,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-16 12:37:44,190 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 12:37:44,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:44,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1079535895, now seen corresponding path program 1 times [2022-11-16 12:37:44,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:44,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271854426] [2022-11-16 12:37:44,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:44,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:44,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:44,754 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 12:37:44,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:44,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271854426] [2022-11-16 12:37:44,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271854426] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:37:44,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1459016944] [2022-11-16 12:37:44,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:44,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:37:44,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dce7478-4e8a-4dc4-9043-32ba08651f8a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:37:44,760 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dce7478-4e8a-4dc4-9043-32ba08651f8a/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:37:44,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dce7478-4e8a-4dc4-9043-32ba08651f8a/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 12:37:45,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:45,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 662 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 12:37:45,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:37:45,629 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 12:37:45,629 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:37:46,183 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 12:37:46,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1459016944] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:37:46,184 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:37:46,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-11-16 12:37:46,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572777681] [2022-11-16 12:37:46,185 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:37:46,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-16 12:37:46,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:46,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-16 12:37:46,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2022-11-16 12:37:46,196 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 389 out of 528 [2022-11-16 12:37:46,205 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 457 transitions, 1310 flow. Second operand has 19 states, 19 states have (on average 394.2631578947368) internal successors, (7491), 19 states have internal predecessors, (7491), 0 states have call successors, (0), 0 states 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 12:37:46,205 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:37:46,205 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 389 of 528 [2022-11-16 12:37:46,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:38:02,504 INFO L130 PetriNetUnfolder]: 19022/40535 cut-off events. [2022-11-16 12:38:02,505 INFO L131 PetriNetUnfolder]: For 52782/55516 co-relation queries the response was YES. [2022-11-16 12:38:02,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94205 conditions, 40535 events. 19022/40535 cut-off events. For 52782/55516 co-relation queries the response was YES. Maximal size of possible extension queue 1040. Compared 385248 event pairs, 10380 based on Foata normal form. 315/35504 useless extension candidates. Maximal degree in co-relation 94150. Up to 20549 conditions per place. [2022-11-16 12:38:02,976 INFO L137 encePairwiseOnDemand]: 499/528 looper letters, 359 selfloop transitions, 70 changer transitions 0/745 dead transitions. [2022-11-16 12:38:02,977 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 473 places, 745 transitions, 3419 flow [2022-11-16 12:38:02,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 12:38:02,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-16 12:38:02,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 8498 transitions. [2022-11-16 12:38:02,991 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7664141414141414 [2022-11-16 12:38:02,991 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 8498 transitions. [2022-11-16 12:38:02,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 8498 transitions. [2022-11-16 12:38:02,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:38:02,995 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 8498 transitions. [2022-11-16 12:38:03,007 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 404.6666666666667) internal successors, (8498), 21 states have internal predecessors, (8498), 0 states have call successors, (0), 0 states 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 12:38:03,016 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 528.0) internal successors, (11616), 22 states have internal predecessors, (11616), 0 states have call successors, (0), 0 states 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 12:38:03,018 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 528.0) internal successors, (11616), 22 states have internal predecessors, (11616), 0 states have call successors, (0), 0 states 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 12:38:03,018 INFO L175 Difference]: Start difference. First operand has 453 places, 457 transitions, 1310 flow. Second operand 21 states and 8498 transitions. [2022-11-16 12:38:03,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 473 places, 745 transitions, 3419 flow [2022-11-16 12:38:03,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 469 places, 745 transitions, 3412 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 12:38:03,182 INFO L231 Difference]: Finished difference. Result has 478 places, 498 transitions, 1738 flow [2022-11-16 12:38:03,182 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=1303, PETRI_DIFFERENCE_MINUEND_PLACES=449, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=457, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=412, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1738, PETRI_PLACES=478, PETRI_TRANSITIONS=498} [2022-11-16 12:38:03,183 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, 14 predicate places. [2022-11-16 12:38:03,183 INFO L495 AbstractCegarLoop]: Abstraction has has 478 places, 498 transitions, 1738 flow [2022-11-16 12:38:03,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 394.2631578947368) internal successors, (7491), 19 states have internal predecessors, (7491), 0 states have call successors, (0), 0 states 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 12:38:03,184 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:38:03,184 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:38:03,192 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dce7478-4e8a-4dc4-9043-32ba08651f8a/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-16 12:38:03,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dce7478-4e8a-4dc4-9043-32ba08651f8a/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-11-16 12:38:03,386 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 12:38:03,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:38:03,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1092733298, now seen corresponding path program 1 times [2022-11-16 12:38:03,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:38:03,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185323121] [2022-11-16 12:38:03,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:38:03,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:38:03,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:03,533 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 12:38:03,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:38:03,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185323121] [2022-11-16 12:38:03,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185323121] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:38:03,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:38:03,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:38:03,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943874786] [2022-11-16 12:38:03,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:38:03,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:38:03,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:38:03,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:38:03,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:38:03,539 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 480 out of 528 [2022-11-16 12:38:03,540 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 478 places, 498 transitions, 1738 flow. Second operand has 3 states, 3 states have (on average 483.3333333333333) internal successors, (1450), 3 states have internal predecessors, (1450), 0 states have call successors, (0), 0 states 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 12:38:03,541 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:38:03,541 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 480 of 528 [2022-11-16 12:38:03,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:38:04,898 INFO L130 PetriNetUnfolder]: 658/4102 cut-off events. [2022-11-16 12:38:04,898 INFO L131 PetriNetUnfolder]: For 4563/4672 co-relation queries the response was YES. [2022-11-16 12:38:04,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7685 conditions, 4102 events. 658/4102 cut-off events. For 4563/4672 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 26632 event pairs, 159 based on Foata normal form. 0/3874 useless extension candidates. Maximal degree in co-relation 7621. Up to 819 conditions per place. [2022-11-16 12:38:04,935 INFO L137 encePairwiseOnDemand]: 526/528 looper letters, 33 selfloop transitions, 1 changer transitions 0/497 dead transitions. [2022-11-16 12:38:04,936 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 497 transitions, 1804 flow [2022-11-16 12:38:04,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:38:04,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:38:04,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1454 transitions. [2022-11-16 12:38:04,939 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9179292929292929 [2022-11-16 12:38:04,939 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1454 transitions. [2022-11-16 12:38:04,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1454 transitions. [2022-11-16 12:38:04,939 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:38:04,940 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1454 transitions. [2022-11-16 12:38:04,942 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 484.6666666666667) internal successors, (1454), 3 states have internal predecessors, (1454), 0 states have call successors, (0), 0 states 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 12:38:04,944 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 12:38:04,944 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 12:38:04,945 INFO L175 Difference]: Start difference. First operand has 478 places, 498 transitions, 1738 flow. Second operand 3 states and 1454 transitions. [2022-11-16 12:38:04,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 479 places, 497 transitions, 1804 flow [2022-11-16 12:38:04,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 476 places, 497 transitions, 1747 flow, removed 20 selfloop flow, removed 3 redundant places. [2022-11-16 12:38:04,967 INFO L231 Difference]: Finished difference. Result has 476 places, 497 transitions, 1681 flow [2022-11-16 12:38:04,968 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=1679, PETRI_DIFFERENCE_MINUEND_PLACES=474, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=497, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=496, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1681, PETRI_PLACES=476, PETRI_TRANSITIONS=497} [2022-11-16 12:38:04,969 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, 12 predicate places. [2022-11-16 12:38:04,969 INFO L495 AbstractCegarLoop]: Abstraction has has 476 places, 497 transitions, 1681 flow [2022-11-16 12:38:04,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 483.3333333333333) internal successors, (1450), 3 states have internal predecessors, (1450), 0 states have call successors, (0), 0 states 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 12:38:04,969 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:38:04,970 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:38:04,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-16 12:38:04,970 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 12:38:04,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:38:04,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1555828474, now seen corresponding path program 1 times [2022-11-16 12:38:04,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:38:04,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596879055] [2022-11-16 12:38:04,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:38:04,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:38:05,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:05,070 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 12:38:05,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:38:05,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596879055] [2022-11-16 12:38:05,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596879055] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:38:05,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:38:05,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:38:05,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8929866] [2022-11-16 12:38:05,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:38:05,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:38:05,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:38:05,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:38:05,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:38:05,074 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 474 out of 528 [2022-11-16 12:38:05,075 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 476 places, 497 transitions, 1681 flow. Second operand has 3 states, 3 states have (on average 477.3333333333333) internal successors, (1432), 3 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:05,075 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:38:05,075 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 474 of 528 [2022-11-16 12:38:05,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand