./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a 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_7077542e-2003-4007-afdf-49ba468fe2a4/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7077542e-2003-4007-afdf-49ba468fe2a4/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7077542e-2003-4007-afdf-49ba468fe2a4/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7077542e-2003-4007-afdf-49ba468fe2a4/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7077542e-2003-4007-afdf-49ba468fe2a4/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7077542e-2003-4007-afdf-49ba468fe2a4/bin/uautomizer-Dbtcem3rbc --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 c0b350b5c7953744a22c8334b20c4dc8efdff09f1ecb36de8b1744d1e20f0260 --- 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-5e519f3 [2022-11-02 20:07:49,052 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:07:49,057 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:07:49,105 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:07:49,105 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:07:49,110 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:07:49,112 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:07:49,117 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:07:49,120 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:07:49,126 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:07:49,127 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:07:49,130 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:07:49,130 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:07:49,134 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:07:49,137 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:07:49,138 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:07:49,140 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:07:49,141 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:07:49,143 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:07:49,151 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:07:49,155 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:07:49,157 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:07:49,161 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:07:49,162 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:07:49,170 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:07:49,170 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:07:49,171 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:07:49,172 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:07:49,173 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:07:49,174 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:07:49,174 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:07:49,175 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:07:49,176 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:07:49,177 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:07:49,178 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:07:49,179 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:07:49,180 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:07:49,180 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:07:49,180 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:07:49,181 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:07:49,182 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:07:49,189 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7077542e-2003-4007-afdf-49ba468fe2a4/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 20:07:49,236 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:07:49,236 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:07:49,237 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:07:49,238 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:07:49,239 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:07:49,239 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:07:49,240 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:07:49,240 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:07:49,240 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:07:49,241 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:07:49,242 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:07:49,242 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:07:49,243 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:07:49,243 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:07:49,243 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:07:49,243 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:07:49,244 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:07:49,244 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:07:49,244 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 20:07:49,244 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:07:49,245 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:07:49,245 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:07:49,245 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:07:49,246 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:07:49,246 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:07:49,246 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:07:49,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:07:49,248 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:07:49,249 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:07:49,249 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:07:49,249 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:07:49,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:07:49,250 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:07:49,250 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:07:49,250 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:07:49,251 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_7077542e-2003-4007-afdf-49ba468fe2a4/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7077542e-2003-4007-afdf-49ba468fe2a4/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c0b350b5c7953744a22c8334b20c4dc8efdff09f1ecb36de8b1744d1e20f0260 [2022-11-02 20:07:49,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:07:49,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:07:49,609 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:07:49,610 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:07:49,611 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:07:49,613 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7077542e-2003-4007-afdf-49ba468fe2a4/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c [2022-11-02 20:07:49,731 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7077542e-2003-4007-afdf-49ba468fe2a4/bin/uautomizer-Dbtcem3rbc/data/455f7a2d6/70dc849081e24c8f99dcaab8fb3897d2/FLAGf49522061 [2022-11-02 20:07:50,285 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:07:50,286 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7077542e-2003-4007-afdf-49ba468fe2a4/sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c [2022-11-02 20:07:50,300 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7077542e-2003-4007-afdf-49ba468fe2a4/bin/uautomizer-Dbtcem3rbc/data/455f7a2d6/70dc849081e24c8f99dcaab8fb3897d2/FLAGf49522061 [2022-11-02 20:07:50,643 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7077542e-2003-4007-afdf-49ba468fe2a4/bin/uautomizer-Dbtcem3rbc/data/455f7a2d6/70dc849081e24c8f99dcaab8fb3897d2 [2022-11-02 20:07:50,647 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:07:50,650 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:07:50,654 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:07:50,655 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:07:50,659 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:07:50,660 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:07:50" (1/1) ... [2022-11-02 20:07:50,662 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72035cf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:50, skipping insertion in model container [2022-11-02 20:07:50,662 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:07:50" (1/1) ... [2022-11-02 20:07:50,672 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:07:50,724 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:07:51,101 WARN L230 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_7077542e-2003-4007-afdf-49ba468fe2a4/sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c[4225,4238] [2022-11-02 20:07:51,110 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:07:51,128 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:07:51,221 WARN L230 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_7077542e-2003-4007-afdf-49ba468fe2a4/sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c[4225,4238] [2022-11-02 20:07:51,239 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:07:51,270 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:07:51,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:51 WrapperNode [2022-11-02 20:07:51,271 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:07:51,272 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:07:51,272 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:07:51,272 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:07:51,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:51" (1/1) ... [2022-11-02 20:07:51,324 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:51" (1/1) ... [2022-11-02 20:07:51,410 INFO L138 Inliner]: procedures = 29, calls = 88, calls flagged for inlining = 22, calls inlined = 32, statements flattened = 673 [2022-11-02 20:07:51,410 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:07:51,411 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:07:51,411 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:07:51,411 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:07:51,423 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:51" (1/1) ... [2022-11-02 20:07:51,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:51" (1/1) ... [2022-11-02 20:07:51,431 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:51" (1/1) ... [2022-11-02 20:07:51,431 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:51" (1/1) ... [2022-11-02 20:07:51,454 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:51" (1/1) ... [2022-11-02 20:07:51,461 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:51" (1/1) ... [2022-11-02 20:07:51,465 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:51" (1/1) ... [2022-11-02 20:07:51,468 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:51" (1/1) ... [2022-11-02 20:07:51,476 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:07:51,477 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:07:51,477 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:07:51,477 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:07:51,478 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:51" (1/1) ... [2022-11-02 20:07:51,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:07:51,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7077542e-2003-4007-afdf-49ba468fe2a4/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:07:51,536 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7077542e-2003-4007-afdf-49ba468fe2a4/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:07:51,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7077542e-2003-4007-afdf-49ba468fe2a4/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:07:51,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:07:51,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:07:51,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:07:51,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:07:51,608 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-02 20:07:51,610 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-02 20:07:51,611 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-02 20:07:51,611 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-02 20:07:51,611 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-02 20:07:51,612 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-02 20:07:51,612 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-02 20:07:51,612 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-02 20:07:51,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:07:51,612 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-11-02 20:07:51,613 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-11-02 20:07:51,613 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-11-02 20:07:51,613 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-11-02 20:07:51,613 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-02 20:07:51,613 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-02 20:07:51,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:07:51,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:07:51,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:07:51,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:07:51,617 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 20:07:51,803 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:07:51,806 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:07:53,176 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:07:53,692 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:07:53,692 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-02 20:07:53,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:07:53 BoogieIcfgContainer [2022-11-02 20:07:53,697 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:07:53,700 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:07:53,700 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:07:53,704 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:07:53,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:07:50" (1/3) ... [2022-11-02 20:07:53,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c7fd838 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:07:53, skipping insertion in model container [2022-11-02 20:07:53,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:51" (2/3) ... [2022-11-02 20:07:53,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c7fd838 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:07:53, skipping insertion in model container [2022-11-02 20:07:53,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:07:53" (3/3) ... [2022-11-02 20:07:53,709 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-2.wvr.c [2022-11-02 20:07:53,720 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:07:53,731 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:07:53,731 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 89 error locations. [2022-11-02 20:07:53,732 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:07:53,991 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-11-02 20:07:54,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 572 places, 581 transitions, 1234 flow [2022-11-02 20:07:54,367 INFO L130 PetriNetUnfolder]: 26/505 cut-off events. [2022-11-02 20:07:54,368 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-02 20:07:54,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 534 conditions, 505 events. 26/505 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 878 event pairs, 0 based on Foata normal form. 0/390 useless extension candidates. Maximal degree in co-relation 428. Up to 3 conditions per place. [2022-11-02 20:07:54,380 INFO L82 GeneralOperation]: Start removeDead. Operand has 572 places, 581 transitions, 1234 flow [2022-11-02 20:07:54,428 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 481 places, 487 transitions, 1022 flow [2022-11-02 20:07:54,442 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:07:54,450 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;@1c791014, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:07:54,450 INFO L358 AbstractCegarLoop]: Starting to check reachability of 157 error locations. [2022-11-02 20:07:54,456 INFO L130 PetriNetUnfolder]: 0/32 cut-off events. [2022-11-02 20:07:54,456 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:07:54,456 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:07:54,457 INFO L208 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] [2022-11-02 20:07:54,458 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-02 20:07:54,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:07:54,464 INFO L85 PathProgramCache]: Analyzing trace with hash -968705940, now seen corresponding path program 1 times [2022-11-02 20:07:54,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:07:54,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072435686] [2022-11-02 20:07:54,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:07:54,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:07:54,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:07:54,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:07:54,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:07:54,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072435686] [2022-11-02 20:07:54,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072435686] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:07:54,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:07:54,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:07:54,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962063700] [2022-11-02 20:07:54,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:07:54,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:07:54,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:07:54,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:07:54,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:07:54,845 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 463 out of 585 [2022-11-02 20:07:54,865 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 481 places, 487 transitions, 1022 flow. Second operand has 3 states, 3 states have (on average 464.3333333333333) internal successors, (1393), 3 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:07:54,866 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:07:54,866 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 463 of 585 [2022-11-02 20:07:54,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:07:55,806 INFO L130 PetriNetUnfolder]: 483/1589 cut-off events. [2022-11-02 20:07:55,806 INFO L131 PetriNetUnfolder]: For 388/424 co-relation queries the response was YES. [2022-11-02 20:07:55,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2628 conditions, 1589 events. 483/1589 cut-off events. For 388/424 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 7562 event pairs, 234 based on Foata normal form. 192/1536 useless extension candidates. Maximal degree in co-relation 2172. Up to 664 conditions per place. [2022-11-02 20:07:55,837 INFO L137 encePairwiseOnDemand]: 521/585 looper letters, 35 selfloop transitions, 2 changer transitions 4/425 dead transitions. [2022-11-02 20:07:55,838 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 432 places, 425 transitions, 972 flow [2022-11-02 20:07:55,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:07:55,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:07:55,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1488 transitions. [2022-11-02 20:07:55,867 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8478632478632478 [2022-11-02 20:07:55,868 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1488 transitions. [2022-11-02 20:07:55,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1488 transitions. [2022-11-02 20:07:55,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:07:55,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1488 transitions. [2022-11-02 20:07:55,887 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 496.0) internal successors, (1488), 3 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:07:55,899 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 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) [2022-11-02 20:07:55,902 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 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) [2022-11-02 20:07:55,904 INFO L175 Difference]: Start difference. First operand has 481 places, 487 transitions, 1022 flow. Second operand 3 states and 1488 transitions. [2022-11-02 20:07:55,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 432 places, 425 transitions, 972 flow [2022-11-02 20:07:55,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 425 transitions, 940 flow, removed 0 selfloop flow, removed 12 redundant places. [2022-11-02 20:07:55,938 INFO L231 Difference]: Finished difference. Result has 420 places, 421 transitions, 862 flow [2022-11-02 20:07:55,941 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=866, PETRI_DIFFERENCE_MINUEND_PLACES=418, 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=862, PETRI_PLACES=420, PETRI_TRANSITIONS=421} [2022-11-02 20:07:55,946 INFO L287 CegarLoopForPetriNet]: 481 programPoint places, -61 predicate places. [2022-11-02 20:07:55,946 INFO L495 AbstractCegarLoop]: Abstraction has has 420 places, 421 transitions, 862 flow [2022-11-02 20:07:55,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 464.3333333333333) internal successors, (1393), 3 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:07:55,947 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:07:55,948 INFO L208 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] [2022-11-02 20:07:55,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:07:55,949 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-02 20:07:55,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:07:55,950 INFO L85 PathProgramCache]: Analyzing trace with hash -1267639256, now seen corresponding path program 1 times [2022-11-02 20:07:55,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:07:55,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69772949] [2022-11-02 20:07:55,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:07:55,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:07:55,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:07:56,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:07:56,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:07:56,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69772949] [2022-11-02 20:07:56,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69772949] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:07:56,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:07:56,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:07:56,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346874168] [2022-11-02 20:07:56,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:07:56,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:07:56,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:07:56,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:07:56,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:07:56,107 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 463 out of 585 [2022-11-02 20:07:56,111 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 421 transitions, 862 flow. Second operand has 3 states, 3 states have (on average 464.3333333333333) internal successors, (1393), 3 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:07:56,112 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:07:56,113 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 463 of 585 [2022-11-02 20:07:56,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:07:56,934 INFO L130 PetriNetUnfolder]: 483/1712 cut-off events. [2022-11-02 20:07:56,934 INFO L131 PetriNetUnfolder]: For 96/138 co-relation queries the response was YES. [2022-11-02 20:07:56,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2475 conditions, 1712 events. 483/1712 cut-off events. For 96/138 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 8479 event pairs, 234 based on Foata normal form. 0/1428 useless extension candidates. Maximal degree in co-relation 2434. Up to 664 conditions per place. [2022-11-02 20:07:56,958 INFO L137 encePairwiseOnDemand]: 582/585 looper letters, 35 selfloop transitions, 2 changer transitions 0/420 dead transitions. [2022-11-02 20:07:56,959 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 420 transitions, 934 flow [2022-11-02 20:07:56,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:07:56,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:07:56,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1427 transitions. [2022-11-02 20:07:56,964 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8131054131054131 [2022-11-02 20:07:56,964 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1427 transitions. [2022-11-02 20:07:56,964 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1427 transitions. [2022-11-02 20:07:56,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:07:56,966 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1427 transitions. [2022-11-02 20:07:56,970 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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) [2022-11-02 20:07:56,975 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 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) [2022-11-02 20:07:56,977 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 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) [2022-11-02 20:07:56,977 INFO L175 Difference]: Start difference. First operand has 420 places, 421 transitions, 862 flow. Second operand 3 states and 1427 transitions. [2022-11-02 20:07:56,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 420 transitions, 934 flow [2022-11-02 20:07:56,981 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 415 places, 420 transitions, 930 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:07:56,988 INFO L231 Difference]: Finished difference. Result has 415 places, 420 transitions, 860 flow [2022-11-02 20:07:56,989 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=856, PETRI_DIFFERENCE_MINUEND_PLACES=413, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=420, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=418, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=860, PETRI_PLACES=415, PETRI_TRANSITIONS=420} [2022-11-02 20:07:56,990 INFO L287 CegarLoopForPetriNet]: 481 programPoint places, -66 predicate places. [2022-11-02 20:07:56,991 INFO L495 AbstractCegarLoop]: Abstraction has has 415 places, 420 transitions, 860 flow [2022-11-02 20:07:56,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 464.3333333333333) internal successors, (1393), 3 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:07:56,992 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:07:56,992 INFO L208 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] [2022-11-02 20:07:56,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:07:56,993 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-02 20:07:56,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:07:56,994 INFO L85 PathProgramCache]: Analyzing trace with hash -628427822, now seen corresponding path program 1 times [2022-11-02 20:07:56,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:07:56,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926573915] [2022-11-02 20:07:56,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:07:56,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:07:57,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:07:57,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:07:57,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:07:57,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926573915] [2022-11-02 20:07:57,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926573915] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:07:57,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:07:57,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:07:57,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213727390] [2022-11-02 20:07:57,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:07:57,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:07:57,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:07:57,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:07:57,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:07:57,086 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 472 out of 585 [2022-11-02 20:07:57,089 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 415 places, 420 transitions, 860 flow. Second operand has 3 states, 3 states have (on average 473.3333333333333) internal successors, (1420), 3 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:07:57,089 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:07:57,089 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 472 of 585 [2022-11-02 20:07:57,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:07:57,670 INFO L130 PetriNetUnfolder]: 414/1433 cut-off events. [2022-11-02 20:07:57,670 INFO L131 PetriNetUnfolder]: For 84/120 co-relation queries the response was YES. [2022-11-02 20:07:57,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2079 conditions, 1433 events. 414/1433 cut-off events. For 84/120 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 6437 event pairs, 192 based on Foata normal form. 0/1209 useless extension candidates. Maximal degree in co-relation 2031. Up to 556 conditions per place. [2022-11-02 20:07:57,693 INFO L137 encePairwiseOnDemand]: 582/585 looper letters, 29 selfloop transitions, 2 changer transitions 0/419 dead transitions. [2022-11-02 20:07:57,693 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 416 places, 419 transitions, 920 flow [2022-11-02 20:07:57,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:07:57,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:07:57,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1448 transitions. [2022-11-02 20:07:57,698 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8250712250712251 [2022-11-02 20:07:57,698 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1448 transitions. [2022-11-02 20:07:57,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1448 transitions. [2022-11-02 20:07:57,700 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:07:57,700 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1448 transitions. [2022-11-02 20:07:57,704 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 482.6666666666667) internal successors, (1448), 3 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:07:57,709 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 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) [2022-11-02 20:07:57,711 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 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) [2022-11-02 20:07:57,711 INFO L175 Difference]: Start difference. First operand has 415 places, 420 transitions, 860 flow. Second operand 3 states and 1448 transitions. [2022-11-02 20:07:57,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 416 places, 419 transitions, 920 flow [2022-11-02 20:07:57,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 414 places, 419 transitions, 916 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:07:57,722 INFO L231 Difference]: Finished difference. Result has 414 places, 419 transitions, 858 flow [2022-11-02 20:07:57,723 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=854, PETRI_DIFFERENCE_MINUEND_PLACES=412, 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=858, PETRI_PLACES=414, PETRI_TRANSITIONS=419} [2022-11-02 20:07:57,724 INFO L287 CegarLoopForPetriNet]: 481 programPoint places, -67 predicate places. [2022-11-02 20:07:57,724 INFO L495 AbstractCegarLoop]: Abstraction has has 414 places, 419 transitions, 858 flow [2022-11-02 20:07:57,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 473.3333333333333) internal successors, (1420), 3 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:07:57,726 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:07:57,726 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:07:57,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:07:57,727 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-02 20:07:57,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:07:57,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1743410668, now seen corresponding path program 1 times [2022-11-02 20:07:57,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:07:57,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788423843] [2022-11-02 20:07:57,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:07:57,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:07:57,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:07:57,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:07:57,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:07:57,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788423843] [2022-11-02 20:07:57,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788423843] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:07:57,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:07:57,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:07:57,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48041256] [2022-11-02 20:07:57,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:07:57,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:07:57,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:07:57,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:07:57,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:07:57,818 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 472 out of 585 [2022-11-02 20:07:57,820 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 414 places, 419 transitions, 858 flow. Second operand has 3 states, 3 states have (on average 473.3333333333333) internal successors, (1420), 3 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:07:57,821 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:07:57,821 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 472 of 585 [2022-11-02 20:07:57,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:07:58,357 INFO L130 PetriNetUnfolder]: 414/1432 cut-off events. [2022-11-02 20:07:58,357 INFO L131 PetriNetUnfolder]: For 84/120 co-relation queries the response was YES. [2022-11-02 20:07:58,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2078 conditions, 1432 events. 414/1432 cut-off events. For 84/120 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 6486 event pairs, 192 based on Foata normal form. 0/1209 useless extension candidates. Maximal degree in co-relation 2023. Up to 556 conditions per place. [2022-11-02 20:07:58,381 INFO L137 encePairwiseOnDemand]: 582/585 looper letters, 29 selfloop transitions, 2 changer transitions 0/418 dead transitions. [2022-11-02 20:07:58,381 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 415 places, 418 transitions, 918 flow [2022-11-02 20:07:58,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:07:58,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:07:58,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1448 transitions. [2022-11-02 20:07:58,387 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8250712250712251 [2022-11-02 20:07:58,387 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1448 transitions. [2022-11-02 20:07:58,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1448 transitions. [2022-11-02 20:07:58,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:07:58,389 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1448 transitions. [2022-11-02 20:07:58,394 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 482.6666666666667) internal successors, (1448), 3 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:07:58,400 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 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) [2022-11-02 20:07:58,402 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 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) [2022-11-02 20:07:58,402 INFO L175 Difference]: Start difference. First operand has 414 places, 419 transitions, 858 flow. Second operand 3 states and 1448 transitions. [2022-11-02 20:07:58,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 415 places, 418 transitions, 918 flow [2022-11-02 20:07:58,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 413 places, 418 transitions, 914 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:07:58,415 INFO L231 Difference]: Finished difference. Result has 413 places, 418 transitions, 856 flow [2022-11-02 20:07:58,416 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=852, PETRI_DIFFERENCE_MINUEND_PLACES=411, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=418, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=856, PETRI_PLACES=413, PETRI_TRANSITIONS=418} [2022-11-02 20:07:58,417 INFO L287 CegarLoopForPetriNet]: 481 programPoint places, -68 predicate places. [2022-11-02 20:07:58,417 INFO L495 AbstractCegarLoop]: Abstraction has has 413 places, 418 transitions, 856 flow [2022-11-02 20:07:58,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 473.3333333333333) internal successors, (1420), 3 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:07:58,419 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:07:58,420 INFO L208 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] [2022-11-02 20:07:58,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:07:58,420 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-02 20:07:58,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:07:58,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1178463443, now seen corresponding path program 1 times [2022-11-02 20:07:58,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:07:58,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892376643] [2022-11-02 20:07:58,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:07:58,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:07:58,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:07:58,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:07:58,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:07:58,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892376643] [2022-11-02 20:07:58,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892376643] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:07:58,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:07:58,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:07:58,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585494776] [2022-11-02 20:07:58,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:07:58,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:07:58,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:07:58,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:07:58,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:07:58,531 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 472 out of 585 [2022-11-02 20:07:58,534 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 413 places, 418 transitions, 856 flow. Second operand has 3 states, 3 states have (on average 473.3333333333333) internal successors, (1420), 3 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:07:58,534 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:07:58,534 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 472 of 585 [2022-11-02 20:07:58,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:07:59,143 INFO L130 PetriNetUnfolder]: 414/1431 cut-off events. [2022-11-02 20:07:59,144 INFO L131 PetriNetUnfolder]: For 84/120 co-relation queries the response was YES. [2022-11-02 20:07:59,151 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2077 conditions, 1431 events. 414/1431 cut-off events. For 84/120 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 6496 event pairs, 192 based on Foata normal form. 0/1209 useless extension candidates. Maximal degree in co-relation 2015. Up to 556 conditions per place. [2022-11-02 20:07:59,166 INFO L137 encePairwiseOnDemand]: 582/585 looper letters, 29 selfloop transitions, 2 changer transitions 0/417 dead transitions. [2022-11-02 20:07:59,166 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 414 places, 417 transitions, 916 flow [2022-11-02 20:07:59,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:07:59,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:07:59,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1448 transitions. [2022-11-02 20:07:59,171 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8250712250712251 [2022-11-02 20:07:59,171 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1448 transitions. [2022-11-02 20:07:59,171 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1448 transitions. [2022-11-02 20:07:59,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:07:59,173 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1448 transitions. [2022-11-02 20:07:59,177 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 482.6666666666667) internal successors, (1448), 3 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:07:59,181 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 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) [2022-11-02 20:07:59,182 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 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) [2022-11-02 20:07:59,183 INFO L175 Difference]: Start difference. First operand has 413 places, 418 transitions, 856 flow. Second operand 3 states and 1448 transitions. [2022-11-02 20:07:59,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 414 places, 417 transitions, 916 flow [2022-11-02 20:07:59,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 412 places, 417 transitions, 912 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:07:59,193 INFO L231 Difference]: Finished difference. Result has 412 places, 417 transitions, 854 flow [2022-11-02 20:07:59,194 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=850, PETRI_DIFFERENCE_MINUEND_PLACES=410, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=417, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=415, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=854, PETRI_PLACES=412, PETRI_TRANSITIONS=417} [2022-11-02 20:07:59,199 INFO L287 CegarLoopForPetriNet]: 481 programPoint places, -69 predicate places. [2022-11-02 20:07:59,200 INFO L495 AbstractCegarLoop]: Abstraction has has 412 places, 417 transitions, 854 flow [2022-11-02 20:07:59,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 473.3333333333333) internal successors, (1420), 3 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:07:59,203 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:07:59,204 INFO L208 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] [2022-11-02 20:07:59,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:07:59,204 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-02 20:07:59,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:07:59,206 INFO L85 PathProgramCache]: Analyzing trace with hash 774376349, now seen corresponding path program 1 times [2022-11-02 20:07:59,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:07:59,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186627507] [2022-11-02 20:07:59,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:07:59,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:07:59,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:07:59,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:07:59,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:07:59,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186627507] [2022-11-02 20:07:59,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186627507] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:07:59,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:07:59,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:07:59,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077124084] [2022-11-02 20:07:59,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:07:59,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:07:59,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:07:59,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:07:59,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:07:59,313 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 472 out of 585 [2022-11-02 20:07:59,315 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 412 places, 417 transitions, 854 flow. Second operand has 3 states, 3 states have (on average 473.3333333333333) internal successors, (1420), 3 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:07:59,316 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:07:59,316 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 472 of 585 [2022-11-02 20:07:59,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:07:59,795 INFO L130 PetriNetUnfolder]: 414/1430 cut-off events. [2022-11-02 20:07:59,795 INFO L131 PetriNetUnfolder]: For 84/120 co-relation queries the response was YES. [2022-11-02 20:07:59,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2076 conditions, 1430 events. 414/1430 cut-off events. For 84/120 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 6454 event pairs, 192 based on Foata normal form. 0/1209 useless extension candidates. Maximal degree in co-relation 2007. Up to 556 conditions per place. [2022-11-02 20:07:59,816 INFO L137 encePairwiseOnDemand]: 582/585 looper letters, 29 selfloop transitions, 2 changer transitions 0/416 dead transitions. [2022-11-02 20:07:59,817 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 413 places, 416 transitions, 914 flow [2022-11-02 20:07:59,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:07:59,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:07:59,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1448 transitions. [2022-11-02 20:07:59,821 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8250712250712251 [2022-11-02 20:07:59,822 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1448 transitions. [2022-11-02 20:07:59,822 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1448 transitions. [2022-11-02 20:07:59,823 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:07:59,823 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1448 transitions. [2022-11-02 20:07:59,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 482.6666666666667) internal successors, (1448), 3 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:07:59,832 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 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) [2022-11-02 20:07:59,834 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 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) [2022-11-02 20:07:59,834 INFO L175 Difference]: Start difference. First operand has 412 places, 417 transitions, 854 flow. Second operand 3 states and 1448 transitions. [2022-11-02 20:07:59,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 413 places, 416 transitions, 914 flow [2022-11-02 20:07:59,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 411 places, 416 transitions, 910 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:07:59,845 INFO L231 Difference]: Finished difference. Result has 411 places, 416 transitions, 852 flow [2022-11-02 20:07:59,846 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=848, PETRI_DIFFERENCE_MINUEND_PLACES=409, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=416, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=852, PETRI_PLACES=411, PETRI_TRANSITIONS=416} [2022-11-02 20:07:59,850 INFO L287 CegarLoopForPetriNet]: 481 programPoint places, -70 predicate places. [2022-11-02 20:07:59,850 INFO L495 AbstractCegarLoop]: Abstraction has has 411 places, 416 transitions, 852 flow [2022-11-02 20:07:59,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 473.3333333333333) internal successors, (1420), 3 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:07:59,852 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:07:59,853 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:07:59,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:07:59,853 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-02 20:07:59,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:07:59,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1776436583, now seen corresponding path program 1 times [2022-11-02 20:07:59,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:07:59,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30927690] [2022-11-02 20:07:59,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:07:59,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:07:59,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:07:59,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:07:59,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:07:59,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30927690] [2022-11-02 20:07:59,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30927690] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:07:59,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:07:59,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:07:59,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879850500] [2022-11-02 20:07:59,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:07:59,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:07:59,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:07:59,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:07:59,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:07:59,962 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 454 out of 585 [2022-11-02 20:07:59,964 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 411 places, 416 transitions, 852 flow. Second operand has 3 states, 3 states have (on average 455.3333333333333) internal successors, (1366), 3 states have internal predecessors, (1366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:07:59,965 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:07:59,965 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 454 of 585 [2022-11-02 20:07:59,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:08:00,431 INFO L130 PetriNetUnfolder]: 414/1429 cut-off events. [2022-11-02 20:08:00,431 INFO L131 PetriNetUnfolder]: For 84/120 co-relation queries the response was YES. [2022-11-02 20:08:00,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2093 conditions, 1429 events. 414/1429 cut-off events. For 84/120 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 6489 event pairs, 192 based on Foata normal form. 0/1209 useless extension candidates. Maximal degree in co-relation 2017. Up to 574 conditions per place. [2022-11-02 20:08:00,452 INFO L137 encePairwiseOnDemand]: 582/585 looper letters, 47 selfloop transitions, 2 changer transitions 0/415 dead transitions. [2022-11-02 20:08:00,453 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 412 places, 415 transitions, 948 flow [2022-11-02 20:08:00,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:08:00,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:08:00,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1412 transitions. [2022-11-02 20:08:00,458 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8045584045584045 [2022-11-02 20:08:00,458 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1412 transitions. [2022-11-02 20:08:00,458 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1412 transitions. [2022-11-02 20:08:00,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:08:00,460 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1412 transitions. [2022-11-02 20:08:00,463 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 470.6666666666667) internal successors, (1412), 3 states have internal predecessors, (1412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:08:00,467 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 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) [2022-11-02 20:08:00,469 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 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) [2022-11-02 20:08:00,469 INFO L175 Difference]: Start difference. First operand has 411 places, 416 transitions, 852 flow. Second operand 3 states and 1412 transitions. [2022-11-02 20:08:00,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 412 places, 415 transitions, 948 flow [2022-11-02 20:08:00,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 410 places, 415 transitions, 944 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:08:00,480 INFO L231 Difference]: Finished difference. Result has 410 places, 415 transitions, 850 flow [2022-11-02 20:08:00,481 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=846, PETRI_DIFFERENCE_MINUEND_PLACES=408, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=415, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=413, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=850, PETRI_PLACES=410, PETRI_TRANSITIONS=415} [2022-11-02 20:08:00,481 INFO L287 CegarLoopForPetriNet]: 481 programPoint places, -71 predicate places. [2022-11-02 20:08:00,482 INFO L495 AbstractCegarLoop]: Abstraction has has 410 places, 415 transitions, 850 flow [2022-11-02 20:08:00,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 455.3333333333333) internal successors, (1366), 3 states have internal predecessors, (1366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:08:00,484 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:08:00,484 INFO L208 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] [2022-11-02 20:08:00,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:08:00,484 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-02 20:08:00,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:08:00,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1046014902, now seen corresponding path program 1 times [2022-11-02 20:08:00,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:08:00,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276940671] [2022-11-02 20:08:00,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:08:00,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:08:00,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:08:00,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:08:00,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:08:00,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276940671] [2022-11-02 20:08:00,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276940671] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:08:00,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:08:00,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:08:00,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661843999] [2022-11-02 20:08:00,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:08:00,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:08:00,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:08:00,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:08:00,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:08:00,587 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 469 out of 585 [2022-11-02 20:08:00,589 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 410 places, 415 transitions, 850 flow. Second operand has 3 states, 3 states have (on average 470.3333333333333) internal successors, (1411), 3 states have internal predecessors, (1411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:08:00,589 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:08:00,590 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 469 of 585 [2022-11-02 20:08:00,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:08:01,066 INFO L130 PetriNetUnfolder]: 414/1428 cut-off events. [2022-11-02 20:08:01,067 INFO L131 PetriNetUnfolder]: For 84/120 co-relation queries the response was YES. [2022-11-02 20:08:01,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2077 conditions, 1428 events. 414/1428 cut-off events. For 84/120 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 6478 event pairs, 192 based on Foata normal form. 0/1209 useless extension candidates. Maximal degree in co-relation 1994. Up to 559 conditions per place. [2022-11-02 20:08:01,085 INFO L137 encePairwiseOnDemand]: 582/585 looper letters, 32 selfloop transitions, 2 changer transitions 0/414 dead transitions. [2022-11-02 20:08:01,085 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 411 places, 414 transitions, 916 flow [2022-11-02 20:08:01,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:08:01,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:08:01,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1442 transitions. [2022-11-02 20:08:01,090 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8216524216524217 [2022-11-02 20:08:01,090 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1442 transitions. [2022-11-02 20:08:01,090 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1442 transitions. [2022-11-02 20:08:01,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:08:01,092 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1442 transitions. [2022-11-02 20:08:01,096 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) [2022-11-02 20:08:01,100 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 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) [2022-11-02 20:08:01,101 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 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) [2022-11-02 20:08:01,101 INFO L175 Difference]: Start difference. First operand has 410 places, 415 transitions, 850 flow. Second operand 3 states and 1442 transitions. [2022-11-02 20:08:01,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 411 places, 414 transitions, 916 flow [2022-11-02 20:08:01,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 409 places, 414 transitions, 912 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:08:01,111 INFO L231 Difference]: Finished difference. Result has 409 places, 414 transitions, 848 flow [2022-11-02 20:08:01,112 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=844, PETRI_DIFFERENCE_MINUEND_PLACES=407, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=412, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=848, PETRI_PLACES=409, PETRI_TRANSITIONS=414} [2022-11-02 20:08:01,113 INFO L287 CegarLoopForPetriNet]: 481 programPoint places, -72 predicate places. [2022-11-02 20:08:01,113 INFO L495 AbstractCegarLoop]: Abstraction has has 409 places, 414 transitions, 848 flow [2022-11-02 20:08:01,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 470.3333333333333) internal successors, (1411), 3 states have internal predecessors, (1411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:08:01,115 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:08:01,115 INFO L208 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] [2022-11-02 20:08:01,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 20:08:01,116 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-02 20:08:01,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:08:01,117 INFO L85 PathProgramCache]: Analyzing trace with hash 510479388, now seen corresponding path program 1 times [2022-11-02 20:08:01,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:08:01,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031348076] [2022-11-02 20:08:01,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:08:01,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:08:01,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:08:01,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:08:01,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:08:01,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031348076] [2022-11-02 20:08:01,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031348076] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:08:01,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:08:01,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:08:01,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150540120] [2022-11-02 20:08:01,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:08:01,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:08:01,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:08:01,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:08:01,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:08:01,166 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 469 out of 585 [2022-11-02 20:08:01,167 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 414 transitions, 848 flow. Second operand has 3 states, 3 states have (on average 470.3333333333333) internal successors, (1411), 3 states have internal predecessors, (1411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:08:01,168 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:08:01,168 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 469 of 585 [2022-11-02 20:08:01,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:08:01,600 INFO L130 PetriNetUnfolder]: 414/1427 cut-off events. [2022-11-02 20:08:01,600 INFO L131 PetriNetUnfolder]: For 84/120 co-relation queries the response was YES. [2022-11-02 20:08:01,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2076 conditions, 1427 events. 414/1427 cut-off events. For 84/120 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 6438 event pairs, 192 based on Foata normal form. 0/1209 useless extension candidates. Maximal degree in co-relation 1986. Up to 559 conditions per place. [2022-11-02 20:08:01,620 INFO L137 encePairwiseOnDemand]: 582/585 looper letters, 32 selfloop transitions, 2 changer transitions 0/413 dead transitions. [2022-11-02 20:08:01,621 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 410 places, 413 transitions, 914 flow [2022-11-02 20:08:01,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:08:01,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:08:01,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1442 transitions. [2022-11-02 20:08:01,625 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8216524216524217 [2022-11-02 20:08:01,625 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1442 transitions. [2022-11-02 20:08:01,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1442 transitions. [2022-11-02 20:08:01,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:08:01,627 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1442 transitions. [2022-11-02 20:08:01,630 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) [2022-11-02 20:08:01,634 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 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) [2022-11-02 20:08:01,635 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 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) [2022-11-02 20:08:01,636 INFO L175 Difference]: Start difference. First operand has 409 places, 414 transitions, 848 flow. Second operand 3 states and 1442 transitions. [2022-11-02 20:08:01,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 410 places, 413 transitions, 914 flow [2022-11-02 20:08:01,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 413 transitions, 910 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:08:01,646 INFO L231 Difference]: Finished difference. Result has 408 places, 413 transitions, 846 flow [2022-11-02 20:08:01,647 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=842, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=413, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=411, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=846, PETRI_PLACES=408, PETRI_TRANSITIONS=413} [2022-11-02 20:08:01,647 INFO L287 CegarLoopForPetriNet]: 481 programPoint places, -73 predicate places. [2022-11-02 20:08:01,648 INFO L495 AbstractCegarLoop]: Abstraction has has 408 places, 413 transitions, 846 flow [2022-11-02 20:08:01,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 470.3333333333333) internal successors, (1411), 3 states have internal predecessors, (1411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:08:01,649 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:08:01,649 INFO L208 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] [2022-11-02 20:08:01,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 20:08:01,650 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-02 20:08:01,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:08:01,651 INFO L85 PathProgramCache]: Analyzing trace with hash 797986881, now seen corresponding path program 1 times [2022-11-02 20:08:01,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:08:01,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376717340] [2022-11-02 20:08:01,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:08:01,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:08:01,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:08:01,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:08:01,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:08:01,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376717340] [2022-11-02 20:08:01,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376717340] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:08:01,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:08:01,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:08:01,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642667076] [2022-11-02 20:08:01,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:08:01,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:08:01,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:08:01,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:08:01,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:08:01,704 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 469 out of 585 [2022-11-02 20:08:01,706 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 413 transitions, 846 flow. Second operand has 3 states, 3 states have (on average 470.3333333333333) internal successors, (1411), 3 states have internal predecessors, (1411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:08:01,706 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:08:01,706 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 469 of 585 [2022-11-02 20:08:01,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:08:02,128 INFO L130 PetriNetUnfolder]: 414/1426 cut-off events. [2022-11-02 20:08:02,128 INFO L131 PetriNetUnfolder]: For 84/120 co-relation queries the response was YES. [2022-11-02 20:08:02,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2075 conditions, 1426 events. 414/1426 cut-off events. For 84/120 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 6471 event pairs, 192 based on Foata normal form. 0/1209 useless extension candidates. Maximal degree in co-relation 1978. Up to 559 conditions per place. [2022-11-02 20:08:02,148 INFO L137 encePairwiseOnDemand]: 582/585 looper letters, 32 selfloop transitions, 2 changer transitions 0/412 dead transitions. [2022-11-02 20:08:02,149 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 412 transitions, 912 flow [2022-11-02 20:08:02,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:08:02,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:08:02,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1442 transitions. [2022-11-02 20:08:02,153 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8216524216524217 [2022-11-02 20:08:02,154 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1442 transitions. [2022-11-02 20:08:02,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1442 transitions. [2022-11-02 20:08:02,155 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:08:02,155 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1442 transitions. [2022-11-02 20:08:02,159 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) [2022-11-02 20:08:02,163 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 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) [2022-11-02 20:08:02,164 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 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) [2022-11-02 20:08:02,164 INFO L175 Difference]: Start difference. First operand has 408 places, 413 transitions, 846 flow. Second operand 3 states and 1442 transitions. [2022-11-02 20:08:02,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 412 transitions, 912 flow [2022-11-02 20:08:02,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 412 transitions, 908 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:08:02,174 INFO L231 Difference]: Finished difference. Result has 407 places, 412 transitions, 844 flow [2022-11-02 20:08:02,175 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=840, PETRI_DIFFERENCE_MINUEND_PLACES=405, 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=844, PETRI_PLACES=407, PETRI_TRANSITIONS=412} [2022-11-02 20:08:02,176 INFO L287 CegarLoopForPetriNet]: 481 programPoint places, -74 predicate places. [2022-11-02 20:08:02,176 INFO L495 AbstractCegarLoop]: Abstraction has has 407 places, 412 transitions, 844 flow [2022-11-02 20:08:02,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 470.3333333333333) internal successors, (1411), 3 states have internal predecessors, (1411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:08:02,177 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:08:02,177 INFO L208 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] [2022-11-02 20:08:02,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 20:08:02,178 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-02 20:08:02,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:08:02,178 INFO L85 PathProgramCache]: Analyzing trace with hash 604629019, now seen corresponding path program 1 times [2022-11-02 20:08:02,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:08:02,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570248040] [2022-11-02 20:08:02,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:08:02,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:08:02,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:08:02,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:08:02,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:08:02,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570248040] [2022-11-02 20:08:02,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570248040] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:08:02,222 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:08:02,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:08:02,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18219186] [2022-11-02 20:08:02,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:08:02,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:08:02,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:08:02,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:08:02,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:08:02,226 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 469 out of 585 [2022-11-02 20:08:02,228 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 412 transitions, 844 flow. Second operand has 3 states, 3 states have (on average 470.3333333333333) internal successors, (1411), 3 states have internal predecessors, (1411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:08:02,228 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:08:02,229 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 469 of 585 [2022-11-02 20:08:02,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:08:02,674 INFO L130 PetriNetUnfolder]: 414/1425 cut-off events. [2022-11-02 20:08:02,674 INFO L131 PetriNetUnfolder]: For 84/120 co-relation queries the response was YES. [2022-11-02 20:08:02,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2073 conditions, 1425 events. 414/1425 cut-off events. For 84/120 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 6478 event pairs, 192 based on Foata normal form. 0/1209 useless extension candidates. Maximal degree in co-relation 1969. Up to 558 conditions per place. [2022-11-02 20:08:02,695 INFO L137 encePairwiseOnDemand]: 582/585 looper letters, 31 selfloop transitions, 2 changer transitions 0/411 dead transitions. [2022-11-02 20:08:02,695 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 408 places, 411 transitions, 908 flow [2022-11-02 20:08:02,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:08:02,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:08:02,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1441 transitions. [2022-11-02 20:08:02,701 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8210826210826211 [2022-11-02 20:08:02,702 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1441 transitions. [2022-11-02 20:08:02,702 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1441 transitions. [2022-11-02 20:08:02,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:08:02,704 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1441 transitions. [2022-11-02 20:08:02,709 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 480.3333333333333) internal successors, (1441), 3 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:08:02,714 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 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) [2022-11-02 20:08:02,715 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 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) [2022-11-02 20:08:02,716 INFO L175 Difference]: Start difference. First operand has 407 places, 412 transitions, 844 flow. Second operand 3 states and 1441 transitions. [2022-11-02 20:08:02,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 408 places, 411 transitions, 908 flow [2022-11-02 20:08:02,720 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 411 transitions, 904 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:08:02,728 INFO L231 Difference]: Finished difference. Result has 406 places, 411 transitions, 842 flow [2022-11-02 20:08:02,729 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=838, PETRI_DIFFERENCE_MINUEND_PLACES=404, 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=842, PETRI_PLACES=406, PETRI_TRANSITIONS=411} [2022-11-02 20:08:02,730 INFO L287 CegarLoopForPetriNet]: 481 programPoint places, -75 predicate places. [2022-11-02 20:08:02,730 INFO L495 AbstractCegarLoop]: Abstraction has has 406 places, 411 transitions, 842 flow [2022-11-02 20:08:02,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 470.3333333333333) internal successors, (1411), 3 states have internal predecessors, (1411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:08:02,731 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:08:02,731 INFO L208 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] [2022-11-02 20:08:02,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 20:08:02,732 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-02 20:08:02,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:08:02,733 INFO L85 PathProgramCache]: Analyzing trace with hash 488265826, now seen corresponding path program 1 times [2022-11-02 20:08:02,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:08:02,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762392520] [2022-11-02 20:08:02,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:08:02,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:08:02,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:08:02,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:08:02,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:08:02,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762392520] [2022-11-02 20:08:02,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762392520] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:08:02,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:08:02,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:08:02,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99236652] [2022-11-02 20:08:02,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:08:02,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:08:02,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:08:02,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:08:02,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:08:02,800 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 454 out of 585 [2022-11-02 20:08:02,803 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 406 places, 411 transitions, 842 flow. Second operand has 3 states, 3 states have (on average 455.3333333333333) internal successors, (1366), 3 states have internal predecessors, (1366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:08:02,803 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:08:02,803 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 454 of 585 [2022-11-02 20:08:02,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:08:03,437 INFO L130 PetriNetUnfolder]: 561/1867 cut-off events. [2022-11-02 20:08:03,438 INFO L131 PetriNetUnfolder]: For 105/147 co-relation queries the response was YES. [2022-11-02 20:08:03,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2768 conditions, 1867 events. 561/1867 cut-off events. For 105/147 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 9667 event pairs, 285 based on Foata normal form. 0/1579 useless extension candidates. Maximal degree in co-relation 2657. Up to 790 conditions per place. [2022-11-02 20:08:03,463 INFO L137 encePairwiseOnDemand]: 582/585 looper letters, 41 selfloop transitions, 2 changer transitions 0/410 dead transitions. [2022-11-02 20:08:03,464 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 407 places, 410 transitions, 926 flow [2022-11-02 20:08:03,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:08:03,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:08:03,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1406 transitions. [2022-11-02 20:08:03,469 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8011396011396011 [2022-11-02 20:08:03,469 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1406 transitions. [2022-11-02 20:08:03,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1406 transitions. [2022-11-02 20:08:03,470 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:08:03,471 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1406 transitions. [2022-11-02 20:08:03,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 468.6666666666667) internal successors, (1406), 3 states have internal predecessors, (1406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:08:03,479 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 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) [2022-11-02 20:08:03,480 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 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) [2022-11-02 20:08:03,480 INFO L175 Difference]: Start difference. First operand has 406 places, 411 transitions, 842 flow. Second operand 3 states and 1406 transitions. [2022-11-02 20:08:03,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 407 places, 410 transitions, 926 flow [2022-11-02 20:08:03,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 410 transitions, 922 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:08:03,490 INFO L231 Difference]: Finished difference. Result has 405 places, 410 transitions, 840 flow [2022-11-02 20:08:03,491 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=836, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=410, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=840, PETRI_PLACES=405, PETRI_TRANSITIONS=410} [2022-11-02 20:08:03,491 INFO L287 CegarLoopForPetriNet]: 481 programPoint places, -76 predicate places. [2022-11-02 20:08:03,492 INFO L495 AbstractCegarLoop]: Abstraction has has 405 places, 410 transitions, 840 flow [2022-11-02 20:08:03,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 455.3333333333333) internal successors, (1366), 3 states have internal predecessors, (1366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:08:03,493 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:08:03,493 INFO L208 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] [2022-11-02 20:08:03,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-02 20:08:03,493 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-02 20:08:03,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:08:03,494 INFO L85 PathProgramCache]: Analyzing trace with hash -525105607, now seen corresponding path program 1 times [2022-11-02 20:08:03,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:08:03,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050111514] [2022-11-02 20:08:03,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:08:03,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:08:03,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:08:03,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:08:03,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:08:03,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050111514] [2022-11-02 20:08:03,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050111514] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:08:03,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:08:03,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:08:03,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807924084] [2022-11-02 20:08:03,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:08:03,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:08:03,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:08:03,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:08:03,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:08:03,547 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 457 out of 585 [2022-11-02 20:08:03,549 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 410 transitions, 840 flow. Second operand has 3 states, 3 states have (on average 458.3333333333333) internal successors, (1375), 3 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:08:03,550 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:08:03,550 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 457 of 585 [2022-11-02 20:08:03,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:08:04,045 INFO L130 PetriNetUnfolder]: 510/1772 cut-off events. [2022-11-02 20:08:04,046 INFO L131 PetriNetUnfolder]: For 99/138 co-relation queries the response was YES. [2022-11-02 20:08:04,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2581 conditions, 1772 events. 510/1772 cut-off events. For 99/138 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 8961 event pairs, 252 based on Foata normal form. 0/1533 useless extension candidates. Maximal degree in co-relation 2462. Up to 704 conditions per place. [2022-11-02 20:08:04,067 INFO L137 encePairwiseOnDemand]: 580/585 looper letters, 35 selfloop transitions, 1 changer transitions 0/406 dead transitions. [2022-11-02 20:08:04,067 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 403 places, 406 transitions, 904 flow [2022-11-02 20:08:04,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:08:04,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:08:04,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1411 transitions. [2022-11-02 20:08:04,072 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.803988603988604 [2022-11-02 20:08:04,072 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1411 transitions. [2022-11-02 20:08:04,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1411 transitions. [2022-11-02 20:08:04,074 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:08:04,074 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1411 transitions. [2022-11-02 20:08:04,078 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 470.3333333333333) internal successors, (1411), 3 states have internal predecessors, (1411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:08:04,082 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 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) [2022-11-02 20:08:04,083 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 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) [2022-11-02 20:08:04,084 INFO L175 Difference]: Start difference. First operand has 405 places, 410 transitions, 840 flow. Second operand 3 states and 1411 transitions. [2022-11-02 20:08:04,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 403 places, 406 transitions, 904 flow [2022-11-02 20:08:04,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 401 places, 406 transitions, 900 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:08:04,092 INFO L231 Difference]: Finished difference. Result has 401 places, 406 transitions, 830 flow [2022-11-02 20:08:04,093 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=828, PETRI_DIFFERENCE_MINUEND_PLACES=399, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=406, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=405, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=830, PETRI_PLACES=401, PETRI_TRANSITIONS=406} [2022-11-02 20:08:04,094 INFO L287 CegarLoopForPetriNet]: 481 programPoint places, -80 predicate places. [2022-11-02 20:08:04,094 INFO L495 AbstractCegarLoop]: Abstraction has has 401 places, 406 transitions, 830 flow [2022-11-02 20:08:04,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 458.3333333333333) internal successors, (1375), 3 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:08:04,095 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:08:04,096 INFO L208 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] [2022-11-02 20:08:04,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-02 20:08:04,096 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-02 20:08:04,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:08:04,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1445145391, now seen corresponding path program 1 times [2022-11-02 20:08:04,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:08:04,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828565782] [2022-11-02 20:08:04,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:08:04,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:08:04,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:08:04,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:08:04,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:08:04,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828565782] [2022-11-02 20:08:04,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828565782] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:08:04,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:08:04,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:08:04,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763556146] [2022-11-02 20:08:04,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:08:04,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:08:04,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:08:04,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:08:04,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:08:04,171 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 472 out of 585 [2022-11-02 20:08:04,173 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 401 places, 406 transitions, 830 flow. Second operand has 3 states, 3 states have (on average 473.3333333333333) internal successors, (1420), 3 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:08:04,173 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:08:04,173 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 472 of 585 [2022-11-02 20:08:04,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:08:04,587 INFO L130 PetriNetUnfolder]: 414/1411 cut-off events. [2022-11-02 20:08:04,587 INFO L131 PetriNetUnfolder]: For 84/120 co-relation queries the response was YES. [2022-11-02 20:08:04,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2056 conditions, 1411 events. 414/1411 cut-off events. For 84/120 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 6379 event pairs, 192 based on Foata normal form. 0/1209 useless extension candidates. Maximal degree in co-relation 1938. Up to 556 conditions per place. [2022-11-02 20:08:04,607 INFO L137 encePairwiseOnDemand]: 582/585 looper letters, 29 selfloop transitions, 2 changer transitions 0/405 dead transitions. [2022-11-02 20:08:04,607 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 402 places, 405 transitions, 890 flow [2022-11-02 20:08:04,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:08:04,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:08:04,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1448 transitions. [2022-11-02 20:08:04,613 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8250712250712251 [2022-11-02 20:08:04,613 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1448 transitions. [2022-11-02 20:08:04,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1448 transitions. [2022-11-02 20:08:04,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:08:04,615 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1448 transitions. [2022-11-02 20:08:04,619 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 482.6666666666667) internal successors, (1448), 3 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:08:04,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 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) [2022-11-02 20:08:04,626 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 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) [2022-11-02 20:08:04,627 INFO L175 Difference]: Start difference. First operand has 401 places, 406 transitions, 830 flow. Second operand 3 states and 1448 transitions. [2022-11-02 20:08:04,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 402 places, 405 transitions, 890 flow [2022-11-02 20:08:04,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 401 places, 405 transitions, 889 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:08:04,639 INFO L231 Difference]: Finished difference. Result has 401 places, 405 transitions, 831 flow [2022-11-02 20:08:04,640 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=827, PETRI_DIFFERENCE_MINUEND_PLACES=399, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=405, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=403, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=831, PETRI_PLACES=401, PETRI_TRANSITIONS=405} [2022-11-02 20:08:04,641 INFO L287 CegarLoopForPetriNet]: 481 programPoint places, -80 predicate places. [2022-11-02 20:08:04,641 INFO L495 AbstractCegarLoop]: Abstraction has has 401 places, 405 transitions, 831 flow [2022-11-02 20:08:04,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 473.3333333333333) internal successors, (1420), 3 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:08:04,643 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:08:04,643 INFO L208 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] [2022-11-02 20:08:04,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-02 20:08:04,643 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-02 20:08:04,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:08:04,644 INFO L85 PathProgramCache]: Analyzing trace with hash -335410741, now seen corresponding path program 1 times [2022-11-02 20:08:04,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:08:04,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809779717] [2022-11-02 20:08:04,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:08:04,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:08:04,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:08:05,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:08:05,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:08:05,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809779717] [2022-11-02 20:08:05,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809779717] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:08:05,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:08:05,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:08:05,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290013466] [2022-11-02 20:08:05,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:08:05,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:08:05,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:08:05,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:08:05,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:08:05,404 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 413 out of 585 [2022-11-02 20:08:05,408 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 401 places, 405 transitions, 831 flow. Second operand has 6 states, 6 states have (on average 414.8333333333333) internal successors, (2489), 6 states have internal predecessors, (2489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:08:05,408 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:08:05,408 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 413 of 585 [2022-11-02 20:08:05,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:08:36,571 INFO L130 PetriNetUnfolder]: 76386/104983 cut-off events. [2022-11-02 20:08:36,571 INFO L131 PetriNetUnfolder]: For 851/856 co-relation queries the response was YES. [2022-11-02 20:08:36,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199271 conditions, 104983 events. 76386/104983 cut-off events. For 851/856 co-relation queries the response was YES. Maximal size of possible extension queue 2054. Compared 671139 event pairs, 50406 based on Foata normal form. 0/95214 useless extension candidates. Maximal degree in co-relation 199154. Up to 92232 conditions per place. [2022-11-02 20:08:37,739 INFO L137 encePairwiseOnDemand]: 579/585 looper letters, 73 selfloop transitions, 5 changer transitions 0/404 dead transitions. [2022-11-02 20:08:37,739 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 404 transitions, 985 flow [2022-11-02 20:08:37,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:08:37,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:08:37,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2557 transitions. [2022-11-02 20:08:37,747 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7284900284900285 [2022-11-02 20:08:37,747 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2557 transitions. [2022-11-02 20:08:37,747 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2557 transitions. [2022-11-02 20:08:37,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:08:37,749 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2557 transitions. [2022-11-02 20:08:37,755 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 426.1666666666667) internal successors, (2557), 6 states have internal predecessors, (2557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:08:37,763 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 585.0) internal successors, (4095), 7 states have internal predecessors, (4095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:08:37,764 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 585.0) internal successors, (4095), 7 states have internal predecessors, (4095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:08:37,765 INFO L175 Difference]: Start difference. First operand has 401 places, 405 transitions, 831 flow. Second operand 6 states and 2557 transitions. [2022-11-02 20:08:37,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 405 places, 404 transitions, 985 flow [2022-11-02 20:08:37,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 403 places, 404 transitions, 981 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:08:37,774 INFO L231 Difference]: Finished difference. Result has 403 places, 404 transitions, 835 flow [2022-11-02 20:08:37,775 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=825, PETRI_DIFFERENCE_MINUEND_PLACES=398, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=404, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=399, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=835, PETRI_PLACES=403, PETRI_TRANSITIONS=404} [2022-11-02 20:08:37,776 INFO L287 CegarLoopForPetriNet]: 481 programPoint places, -78 predicate places. [2022-11-02 20:08:37,776 INFO L495 AbstractCegarLoop]: Abstraction has has 403 places, 404 transitions, 835 flow [2022-11-02 20:08:37,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 414.8333333333333) internal successors, (2489), 6 states have internal predecessors, (2489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:08:37,777 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:08:37,777 INFO L208 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] [2022-11-02 20:08:37,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-02 20:08:37,778 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-02 20:08:37,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:08:37,779 INFO L85 PathProgramCache]: Analyzing trace with hash -269890375, now seen corresponding path program 1 times [2022-11-02 20:08:37,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:08:37,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56570611] [2022-11-02 20:08:37,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:08:37,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:08:37,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:08:37,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:08:37,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:08:37,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56570611] [2022-11-02 20:08:37,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56570611] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:08:37,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:08:37,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:08:37,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069916917] [2022-11-02 20:08:37,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:08:37,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:08:37,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:08:37,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:08:37,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:08:37,848 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 457 out of 585 [2022-11-02 20:08:37,849 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 404 transitions, 835 flow. Second operand has 3 states, 3 states have (on average 458.3333333333333) internal successors, (1375), 3 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:08:37,849 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:08:37,849 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 457 of 585 [2022-11-02 20:08:37,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:08:38,520 INFO L130 PetriNetUnfolder]: 765/2532 cut-off events. [2022-11-02 20:08:38,520 INFO L131 PetriNetUnfolder]: For 147/197 co-relation queries the response was YES. [2022-11-02 20:08:38,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3710 conditions, 2532 events. 765/2532 cut-off events. For 147/197 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 15843 event pairs, 236 based on Foata normal form. 0/2169 useless extension candidates. Maximal degree in co-relation 3692. Up to 540 conditions per place. [2022-11-02 20:08:38,556 INFO L137 encePairwiseOnDemand]: 576/585 looper letters, 59 selfloop transitions, 3 changer transitions 0/420 dead transitions. [2022-11-02 20:08:38,556 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 420 transitions, 1003 flow [2022-11-02 20:08:38,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:08:38,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:08:38,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1439 transitions. [2022-11-02 20:08:38,561 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.81994301994302 [2022-11-02 20:08:38,561 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1439 transitions. [2022-11-02 20:08:38,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1439 transitions. [2022-11-02 20:08:38,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:08:38,563 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1439 transitions. [2022-11-02 20:08:38,567 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 479.6666666666667) internal successors, (1439), 3 states have internal predecessors, (1439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:08:38,571 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 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) [2022-11-02 20:08:38,572 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 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) [2022-11-02 20:08:38,574 INFO L175 Difference]: Start difference. First operand has 403 places, 404 transitions, 835 flow. Second operand 3 states and 1439 transitions. [2022-11-02 20:08:38,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 420 transitions, 1003 flow [2022-11-02 20:08:38,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 394 places, 420 transitions, 993 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:08:38,591 INFO L231 Difference]: Finished difference. Result has 396 places, 400 transitions, 833 flow [2022-11-02 20:08:38,591 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=813, PETRI_DIFFERENCE_MINUEND_PLACES=392, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=398, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=833, PETRI_PLACES=396, PETRI_TRANSITIONS=400} [2022-11-02 20:08:38,592 INFO L287 CegarLoopForPetriNet]: 481 programPoint places, -85 predicate places. [2022-11-02 20:08:38,593 INFO L495 AbstractCegarLoop]: Abstraction has has 396 places, 400 transitions, 833 flow [2022-11-02 20:08:38,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 458.3333333333333) internal successors, (1375), 3 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:08:38,596 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:08:38,596 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:08:38,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-02 20:08:38,597 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-02 20:08:38,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:08:38,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1666555363, now seen corresponding path program 1 times [2022-11-02 20:08:38,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:08:38,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63876367] [2022-11-02 20:08:38,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:08:38,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:08:38,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:08:38,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:08:38,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:08:38,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63876367] [2022-11-02 20:08:38,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63876367] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:08:38,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:08:38,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:08:38,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577469407] [2022-11-02 20:08:38,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:08:38,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:08:38,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:08:38,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:08:38,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:08:38,960 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 472 out of 585 [2022-11-02 20:08:38,963 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 400 transitions, 833 flow. Second operand has 3 states, 3 states have (on average 473.3333333333333) internal successors, (1420), 3 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:08:38,963 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:08:38,963 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 472 of 585 [2022-11-02 20:08:38,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:08:40,239 INFO L130 PetriNetUnfolder]: 1327/3831 cut-off events. [2022-11-02 20:08:40,240 INFO L131 PetriNetUnfolder]: For 517/724 co-relation queries the response was YES. [2022-11-02 20:08:40,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6035 conditions, 3831 events. 1327/3831 cut-off events. For 517/724 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 27127 event pairs, 402 based on Foata normal form. 0/3231 useless extension candidates. Maximal degree in co-relation 5915. Up to 965 conditions per place. [2022-11-02 20:08:40,305 INFO L137 encePairwiseOnDemand]: 581/585 looper letters, 51 selfloop transitions, 4 changer transitions 0/422 dead transitions. [2022-11-02 20:08:40,305 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 422 transitions, 1010 flow [2022-11-02 20:08:40,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:08:40,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:08:40,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1468 transitions. [2022-11-02 20:08:40,310 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8364672364672364 [2022-11-02 20:08:40,310 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1468 transitions. [2022-11-02 20:08:40,310 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1468 transitions. [2022-11-02 20:08:40,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:08:40,312 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1468 transitions. [2022-11-02 20:08:40,316 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 489.3333333333333) internal successors, (1468), 3 states have internal predecessors, (1468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:08:40,320 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 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) [2022-11-02 20:08:40,321 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 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) [2022-11-02 20:08:40,321 INFO L175 Difference]: Start difference. First operand has 396 places, 400 transitions, 833 flow. Second operand 3 states and 1468 transitions. [2022-11-02 20:08:40,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 422 transitions, 1010 flow [2022-11-02 20:08:40,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 422 transitions, 1000 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:08:40,332 INFO L231 Difference]: Finished difference. Result has 397 places, 402 transitions, 857 flow [2022-11-02 20:08:40,333 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=825, PETRI_DIFFERENCE_MINUEND_PLACES=393, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=399, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=857, PETRI_PLACES=397, PETRI_TRANSITIONS=402} [2022-11-02 20:08:40,334 INFO L287 CegarLoopForPetriNet]: 481 programPoint places, -84 predicate places. [2022-11-02 20:08:40,334 INFO L495 AbstractCegarLoop]: Abstraction has has 397 places, 402 transitions, 857 flow [2022-11-02 20:08:40,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 473.3333333333333) internal successors, (1420), 3 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:08:40,335 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:08:40,335 INFO L208 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] [2022-11-02 20:08:40,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-02 20:08:40,336 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-02 20:08:40,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:08:40,336 INFO L85 PathProgramCache]: Analyzing trace with hash -813074309, now seen corresponding path program 1 times [2022-11-02 20:08:40,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:08:40,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359846870] [2022-11-02 20:08:40,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:08:40,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:08:40,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:08:40,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:08:40,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:08:40,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359846870] [2022-11-02 20:08:40,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359846870] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:08:40,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:08:40,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:08:40,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781520843] [2022-11-02 20:08:40,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:08:40,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:08:40,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:08:40,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:08:40,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:08:40,418 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 475 out of 585 [2022-11-02 20:08:40,420 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 397 places, 402 transitions, 857 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) [2022-11-02 20:08:40,421 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:08:40,421 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 475 of 585 [2022-11-02 20:08:40,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:08:42,464 INFO L130 PetriNetUnfolder]: 2608/6986 cut-off events. [2022-11-02 20:08:42,465 INFO L131 PetriNetUnfolder]: For 1417/1839 co-relation queries the response was YES. [2022-11-02 20:08:42,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11669 conditions, 6986 events. 2608/6986 cut-off events. For 1417/1839 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 57158 event pairs, 1284 based on Foata normal form. 0/5831 useless extension candidates. Maximal degree in co-relation 11550. Up to 1733 conditions per place. [2022-11-02 20:08:42,562 INFO L137 encePairwiseOnDemand]: 581/585 looper letters, 60 selfloop transitions, 3 changer transitions 0/431 dead transitions. [2022-11-02 20:08:42,563 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 398 places, 431 transitions, 1086 flow [2022-11-02 20:08:42,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:08:42,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:08:42,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1479 transitions. [2022-11-02 20:08:42,567 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8427350427350427 [2022-11-02 20:08:42,568 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1479 transitions. [2022-11-02 20:08:42,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1479 transitions. [2022-11-02 20:08:42,569 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:08:42,569 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1479 transitions. [2022-11-02 20:08:42,573 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 493.0) internal successors, (1479), 3 states have internal predecessors, (1479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:08:42,576 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 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) [2022-11-02 20:08:42,577 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 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) [2022-11-02 20:08:42,578 INFO L175 Difference]: Start difference. First operand has 397 places, 402 transitions, 857 flow. Second operand 3 states and 1479 transitions. [2022-11-02 20:08:42,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 398 places, 431 transitions, 1086 flow [2022-11-02 20:08:42,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 431 transitions, 1072 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:08:42,589 INFO L231 Difference]: Finished difference. Result has 398 places, 403 transitions, 867 flow [2022-11-02 20:08:42,590 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=847, PETRI_DIFFERENCE_MINUEND_PLACES=394, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=401, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=398, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=867, PETRI_PLACES=398, PETRI_TRANSITIONS=403} [2022-11-02 20:08:42,590 INFO L287 CegarLoopForPetriNet]: 481 programPoint places, -83 predicate places. [2022-11-02 20:08:42,591 INFO L495 AbstractCegarLoop]: Abstraction has has 398 places, 403 transitions, 867 flow [2022-11-02 20:08:42,591 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) [2022-11-02 20:08:42,592 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:08:42,592 INFO L208 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] [2022-11-02 20:08:42,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-02 20:08:42,592 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-02 20:08:42,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:08:42,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1429601796, now seen corresponding path program 1 times [2022-11-02 20:08:42,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:08:42,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131198061] [2022-11-02 20:08:42,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:08:42,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:08:42,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:08:42,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:08:42,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:08:42,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131198061] [2022-11-02 20:08:42,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131198061] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:08:42,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:08:42,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:08:42,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259135903] [2022-11-02 20:08:42,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:08:42,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:08:42,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:08:42,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:08:42,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:08:42,661 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 472 out of 585 [2022-11-02 20:08:42,662 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 398 places, 403 transitions, 867 flow. Second operand has 3 states, 3 states have (on average 473.3333333333333) internal successors, (1420), 3 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:08:42,663 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:08:42,663 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 472 of 585 [2022-11-02 20:08:42,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:08:45,677 INFO L130 PetriNetUnfolder]: 5168/13478 cut-off events. [2022-11-02 20:08:45,678 INFO L131 PetriNetUnfolder]: For 2903/3747 co-relation queries the response was YES. [2022-11-02 20:08:45,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23197 conditions, 13478 events. 5168/13478 cut-off events. For 2903/3747 co-relation queries the response was YES. Maximal size of possible extension queue 438. Compared 126932 event pairs, 2568 based on Foata normal form. 0/11189 useless extension candidates. Maximal degree in co-relation 23075. Up to 3467 conditions per place. [2022-11-02 20:08:45,840 INFO L137 encePairwiseOnDemand]: 581/585 looper letters, 65 selfloop transitions, 4 changer transitions 0/434 dead transitions. [2022-11-02 20:08:45,840 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 434 transitions, 1118 flow [2022-11-02 20:08:45,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:08:45,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:08:45,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1472 transitions. [2022-11-02 20:08:45,845 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8387464387464387 [2022-11-02 20:08:45,845 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1472 transitions. [2022-11-02 20:08:45,845 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1472 transitions. [2022-11-02 20:08:45,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:08:45,847 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1472 transitions. [2022-11-02 20:08:45,850 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 490.6666666666667) internal successors, (1472), 3 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:08:45,854 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 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) [2022-11-02 20:08:45,855 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 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) [2022-11-02 20:08:45,855 INFO L175 Difference]: Start difference. First operand has 398 places, 403 transitions, 867 flow. Second operand 3 states and 1472 transitions. [2022-11-02 20:08:45,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 434 transitions, 1118 flow [2022-11-02 20:08:45,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 434 transitions, 1108 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:08:45,866 INFO L231 Difference]: Finished difference. Result has 399 places, 405 transitions, 891 flow [2022-11-02 20:08:45,867 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=859, PETRI_DIFFERENCE_MINUEND_PLACES=395, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=402, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=398, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=891, PETRI_PLACES=399, PETRI_TRANSITIONS=405} [2022-11-02 20:08:45,868 INFO L287 CegarLoopForPetriNet]: 481 programPoint places, -82 predicate places. [2022-11-02 20:08:45,868 INFO L495 AbstractCegarLoop]: Abstraction has has 399 places, 405 transitions, 891 flow [2022-11-02 20:08:45,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 473.3333333333333) internal successors, (1420), 3 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:08:45,869 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:08:45,869 INFO L208 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] [2022-11-02 20:08:45,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-02 20:08:45,869 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-02 20:08:45,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:08:45,870 INFO L85 PathProgramCache]: Analyzing trace with hash -856750582, now seen corresponding path program 1 times [2022-11-02 20:08:45,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:08:45,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322155648] [2022-11-02 20:08:45,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:08:45,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:08:45,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:08:45,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:08:45,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:08:45,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322155648] [2022-11-02 20:08:45,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322155648] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:08:45,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:08:45,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:08:45,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885962569] [2022-11-02 20:08:45,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:08:45,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:08:45,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:08:45,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:08:45,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:08:45,924 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 466 out of 585 [2022-11-02 20:08:45,926 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 405 transitions, 891 flow. Second operand has 3 states, 3 states have (on average 467.3333333333333) internal successors, (1402), 3 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:08:45,926 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:08:45,926 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 466 of 585 [2022-11-02 20:08:45,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:08:50,547 INFO L130 PetriNetUnfolder]: 6642/17472 cut-off events. [2022-11-02 20:08:50,547 INFO L131 PetriNetUnfolder]: For 4558/5452 co-relation queries the response was YES. [2022-11-02 20:08:50,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30636 conditions, 17472 events. 6642/17472 cut-off events. For 4558/5452 co-relation queries the response was YES. Maximal size of possible extension queue 511. Compared 171718 event pairs, 853 based on Foata normal form. 33/14904 useless extension candidates. Maximal degree in co-relation 30513. Up to 8056 conditions per place. [2022-11-02 20:08:50,787 INFO L137 encePairwiseOnDemand]: 579/585 looper letters, 65 selfloop transitions, 4 changer transitions 0/430 dead transitions. [2022-11-02 20:08:50,787 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 430 transitions, 1123 flow [2022-11-02 20:08:50,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:08:50,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:08:50,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1454 transitions. [2022-11-02 20:08:50,791 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8284900284900285 [2022-11-02 20:08:50,792 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1454 transitions. [2022-11-02 20:08:50,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1454 transitions. [2022-11-02 20:08:50,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:08:50,793 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1454 transitions. [2022-11-02 20:08:50,796 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) [2022-11-02 20:08:50,800 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 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) [2022-11-02 20:08:50,801 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 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) [2022-11-02 20:08:50,802 INFO L175 Difference]: Start difference. First operand has 399 places, 405 transitions, 891 flow. Second operand 3 states and 1454 transitions. [2022-11-02 20:08:50,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 430 transitions, 1123 flow [2022-11-02 20:08:50,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 430 transitions, 1109 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:08:50,816 INFO L231 Difference]: Finished difference. Result has 398 places, 406 transitions, 903 flow [2022-11-02 20:08:50,817 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=879, PETRI_DIFFERENCE_MINUEND_PLACES=395, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=403, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=399, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=903, PETRI_PLACES=398, PETRI_TRANSITIONS=406} [2022-11-02 20:08:50,817 INFO L287 CegarLoopForPetriNet]: 481 programPoint places, -83 predicate places. [2022-11-02 20:08:50,818 INFO L495 AbstractCegarLoop]: Abstraction has has 398 places, 406 transitions, 903 flow [2022-11-02 20:08:50,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 467.3333333333333) internal successors, (1402), 3 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:08:50,819 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:08:50,819 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:08:50,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-02 20:08:50,819 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-02 20:08:50,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:08:50,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1549076719, now seen corresponding path program 1 times [2022-11-02 20:08:50,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:08:50,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159124235] [2022-11-02 20:08:50,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:08:50,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:08:50,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:08:50,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:08:50,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:08:50,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159124235] [2022-11-02 20:08:50,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159124235] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:08:50,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:08:50,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:08:50,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334992501] [2022-11-02 20:08:50,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:08:50,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:08:50,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:08:50,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:08:50,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:08:50,895 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 466 out of 585 [2022-11-02 20:08:50,897 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 398 places, 406 transitions, 903 flow. Second operand has 3 states, 3 states have (on average 467.3333333333333) internal successors, (1402), 3 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:08:50,897 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:08:50,897 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 466 of 585 [2022-11-02 20:08:50,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand