./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i --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_c8aa9727-fdb7-4450-b5ff-afe4ff987296/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa9727-fdb7-4450-b5ff-afe4ff987296/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_c8aa9727-fdb7-4450-b5ff-afe4ff987296/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa9727-fdb7-4450-b5ff-afe4ff987296/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa9727-fdb7-4450-b5ff-afe4ff987296/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_c8aa9727-fdb7-4450-b5ff-afe4ff987296/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 99f794c04b6feffb38c1e5c415a278bf34dda5287d389b184a9a7d818ab0b70e --- 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 21:06:14,894 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 21:06:14,896 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 21:06:14,945 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 21:06:14,946 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 21:06:14,947 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 21:06:14,948 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 21:06:14,950 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 21:06:14,952 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 21:06:14,953 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 21:06:14,955 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 21:06:14,956 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 21:06:14,956 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 21:06:14,958 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 21:06:14,959 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 21:06:14,960 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 21:06:14,961 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 21:06:14,962 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 21:06:14,964 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 21:06:14,967 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 21:06:14,968 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 21:06:14,974 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 21:06:14,976 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 21:06:14,977 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 21:06:14,981 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 21:06:14,990 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 21:06:14,991 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 21:06:14,992 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 21:06:14,993 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 21:06:14,994 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 21:06:14,994 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 21:06:14,995 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 21:06:14,998 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 21:06:14,999 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 21:06:15,000 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 21:06:15,001 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 21:06:15,003 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 21:06:15,004 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 21:06:15,004 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 21:06:15,005 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 21:06:15,007 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 21:06:15,008 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa9727-fdb7-4450-b5ff-afe4ff987296/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 21:06:15,045 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 21:06:15,046 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 21:06:15,046 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 21:06:15,047 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 21:06:15,048 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 21:06:15,049 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 21:06:15,049 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 21:06:15,050 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 21:06:15,050 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 21:06:15,050 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 21:06:15,051 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 21:06:15,052 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 21:06:15,052 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 21:06:15,052 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 21:06:15,052 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 21:06:15,053 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 21:06:15,053 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 21:06:15,053 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 21:06:15,053 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 21:06:15,053 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 21:06:15,054 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 21:06:15,054 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 21:06:15,054 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 21:06:15,054 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 21:06:15,055 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 21:06:15,055 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 21:06:15,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:06:15,056 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 21:06:15,067 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 21:06:15,067 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 21:06:15,067 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 21:06:15,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 21:06:15,068 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 21:06:15,068 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 21:06:15,068 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 21:06:15,069 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_c8aa9727-fdb7-4450-b5ff-afe4ff987296/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa9727-fdb7-4450-b5ff-afe4ff987296/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 99f794c04b6feffb38c1e5c415a278bf34dda5287d389b184a9a7d818ab0b70e [2022-11-02 21:06:15,381 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 21:06:15,410 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 21:06:15,413 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 21:06:15,415 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 21:06:15,417 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 21:06:15,418 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa9727-fdb7-4450-b5ff-afe4ff987296/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i [2022-11-02 21:06:15,535 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa9727-fdb7-4450-b5ff-afe4ff987296/bin/uautomizer-Dbtcem3rbc/data/62770451b/97290387663b40ea9e178e0816877d34/FLAGea85f4390 [2022-11-02 21:06:16,084 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 21:06:16,085 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa9727-fdb7-4450-b5ff-afe4ff987296/sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i [2022-11-02 21:06:16,118 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa9727-fdb7-4450-b5ff-afe4ff987296/bin/uautomizer-Dbtcem3rbc/data/62770451b/97290387663b40ea9e178e0816877d34/FLAGea85f4390 [2022-11-02 21:06:16,363 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa9727-fdb7-4450-b5ff-afe4ff987296/bin/uautomizer-Dbtcem3rbc/data/62770451b/97290387663b40ea9e178e0816877d34 [2022-11-02 21:06:16,366 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 21:06:16,368 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 21:06:16,369 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 21:06:16,370 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 21:06:16,374 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 21:06:16,375 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:06:16" (1/1) ... [2022-11-02 21:06:16,376 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f072f58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:16, skipping insertion in model container [2022-11-02 21:06:16,376 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:06:16" (1/1) ... [2022-11-02 21:06:16,385 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 21:06:16,449 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 21:06:16,961 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:06:16,983 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 21:06:17,060 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:06:17,139 INFO L208 MainTranslator]: Completed translation [2022-11-02 21:06:17,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:17 WrapperNode [2022-11-02 21:06:17,141 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 21:06:17,142 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 21:06:17,143 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 21:06:17,143 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 21:06:17,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:17" (1/1) ... [2022-11-02 21:06:17,184 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:17" (1/1) ... [2022-11-02 21:06:17,239 INFO L138 Inliner]: procedures = 264, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 88 [2022-11-02 21:06:17,240 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 21:06:17,241 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 21:06:17,241 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 21:06:17,241 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 21:06:17,252 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:17" (1/1) ... [2022-11-02 21:06:17,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:17" (1/1) ... [2022-11-02 21:06:17,272 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:17" (1/1) ... [2022-11-02 21:06:17,273 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:17" (1/1) ... [2022-11-02 21:06:17,281 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:17" (1/1) ... [2022-11-02 21:06:17,298 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:17" (1/1) ... [2022-11-02 21:06:17,300 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:17" (1/1) ... [2022-11-02 21:06:17,303 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:17" (1/1) ... [2022-11-02 21:06:17,319 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 21:06:17,320 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 21:06:17,320 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 21:06:17,320 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 21:06:17,321 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:17" (1/1) ... [2022-11-02 21:06:17,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:06:17,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa9727-fdb7-4450-b5ff-afe4ff987296/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:06:17,367 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa9727-fdb7-4450-b5ff-afe4ff987296/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 21:06:17,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa9727-fdb7-4450-b5ff-afe4ff987296/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 21:06:17,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 21:06:17,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 21:06:17,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 21:06:17,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 21:06:17,428 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-02 21:06:17,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 21:06:17,428 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-02 21:06:17,428 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-02 21:06:17,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 21:06:17,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 21:06:17,433 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 21:06:17,654 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 21:06:17,657 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 21:06:17,919 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 21:06:17,929 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 21:06:17,929 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 21:06:17,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:06:17 BoogieIcfgContainer [2022-11-02 21:06:17,932 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 21:06:17,934 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 21:06:17,934 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 21:06:17,950 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 21:06:17,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:06:16" (1/3) ... [2022-11-02 21:06:17,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@229824ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:06:17, skipping insertion in model container [2022-11-02 21:06:17,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:17" (2/3) ... [2022-11-02 21:06:17,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@229824ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:06:17, skipping insertion in model container [2022-11-02 21:06:17,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:06:17" (3/3) ... [2022-11-02 21:06:17,955 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_06-tricky_address1.i [2022-11-02 21:06:17,964 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 21:06:17,988 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 21:06:17,988 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-02 21:06:17,988 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 21:06:18,087 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-02 21:06:18,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 103 transitions, 211 flow [2022-11-02 21:06:18,258 INFO L130 PetriNetUnfolder]: 4/102 cut-off events. [2022-11-02 21:06:18,259 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 21:06:18,264 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 102 events. 4/102 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 84 event pairs, 0 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2022-11-02 21:06:18,264 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 103 transitions, 211 flow [2022-11-02 21:06:18,272 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 102 transitions, 207 flow [2022-11-02 21:06:18,298 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 21:06:18,307 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;@dfb795d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 21:06:18,308 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-02 21:06:18,347 INFO L130 PetriNetUnfolder]: 4/56 cut-off events. [2022-11-02 21:06:18,348 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 21:06:18,348 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:06:18,349 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] [2022-11-02 21:06:18,349 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 21:06:18,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:06:18,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1298122157, now seen corresponding path program 1 times [2022-11-02 21:06:18,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:06:18,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68780643] [2022-11-02 21:06:18,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:18,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:06:18,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:18,659 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 21:06:18,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:06:18,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68780643] [2022-11-02 21:06:18,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68780643] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:06:18,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:06:18,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:06:18,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215525620] [2022-11-02 21:06:18,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:06:18,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-02 21:06:18,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:06:18,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-02 21:06:18,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 21:06:18,731 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 103 [2022-11-02 21:06:18,738 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 102 transitions, 207 flow. Second operand has 2 states, 2 states have (on average 100.0) internal successors, (200), 2 states have internal predecessors, (200), 0 states have call successors, (0), 0 states 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 21:06:18,738 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:06:18,739 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 103 [2022-11-02 21:06:18,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:06:18,778 INFO L130 PetriNetUnfolder]: 1/99 cut-off events. [2022-11-02 21:06:18,778 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 21:06:18,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 99 events. 1/99 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 83 event pairs, 0 based on Foata normal form. 3/95 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2022-11-02 21:06:18,780 INFO L137 encePairwiseOnDemand]: 100/103 looper letters, 1 selfloop transitions, 0 changer transitions 1/99 dead transitions. [2022-11-02 21:06:18,780 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 99 transitions, 203 flow [2022-11-02 21:06:18,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 21:06:18,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-02 21:06:18,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 202 transitions. [2022-11-02 21:06:18,795 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9805825242718447 [2022-11-02 21:06:18,796 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 202 transitions. [2022-11-02 21:06:18,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 202 transitions. [2022-11-02 21:06:18,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:06:18,801 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 202 transitions. [2022-11-02 21:06:18,804 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 101.0) internal successors, (202), 2 states have internal predecessors, (202), 0 states have call successors, (0), 0 states 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 21:06:18,808 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states 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 21:06:18,809 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states 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 21:06:18,811 INFO L175 Difference]: Start difference. First operand has 102 places, 102 transitions, 207 flow. Second operand 2 states and 202 transitions. [2022-11-02 21:06:18,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 99 transitions, 203 flow [2022-11-02 21:06:18,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 99 transitions, 202 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 21:06:18,826 INFO L231 Difference]: Finished difference. Result has 102 places, 98 transitions, 198 flow [2022-11-02 21:06:18,828 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=198, PETRI_PLACES=102, PETRI_TRANSITIONS=98} [2022-11-02 21:06:18,833 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 0 predicate places. [2022-11-02 21:06:18,833 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 98 transitions, 198 flow [2022-11-02 21:06:18,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 100.0) internal successors, (200), 2 states have internal predecessors, (200), 0 states have call successors, (0), 0 states 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 21:06:18,834 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:06:18,834 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] [2022-11-02 21:06:18,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 21:06:18,835 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 21:06:18,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:06:18,836 INFO L85 PathProgramCache]: Analyzing trace with hash -779087186, now seen corresponding path program 1 times [2022-11-02 21:06:18,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:06:18,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98553153] [2022-11-02 21:06:18,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:18,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:06:18,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:18,981 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 21:06:18,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:06:18,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98553153] [2022-11-02 21:06:18,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98553153] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:06:18,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:06:18,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:06:18,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047599286] [2022-11-02 21:06:18,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:06:18,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:06:18,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:06:18,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:06:18,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:06:18,987 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 103 [2022-11-02 21:06:18,988 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 98 transitions, 198 flow. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states 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 21:06:18,988 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:06:18,988 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 103 [2022-11-02 21:06:18,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:06:19,038 INFO L130 PetriNetUnfolder]: 1/102 cut-off events. [2022-11-02 21:06:19,038 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 21:06:19,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 102 events. 1/102 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 79 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 116. Up to 9 conditions per place. [2022-11-02 21:06:19,039 INFO L137 encePairwiseOnDemand]: 100/103 looper letters, 10 selfloop transitions, 2 changer transitions 0/102 dead transitions. [2022-11-02 21:06:19,039 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 102 transitions, 230 flow [2022-11-02 21:06:19,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:06:19,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:06:19,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 289 transitions. [2022-11-02 21:06:19,043 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9352750809061489 [2022-11-02 21:06:19,043 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 289 transitions. [2022-11-02 21:06:19,043 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 289 transitions. [2022-11-02 21:06:19,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:06:19,044 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 289 transitions. [2022-11-02 21:06:19,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:06:19,048 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 0 states have call successors, (0), 0 states 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 21:06:19,048 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 0 states have call successors, (0), 0 states 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 21:06:19,049 INFO L175 Difference]: Start difference. First operand has 102 places, 98 transitions, 198 flow. Second operand 3 states and 289 transitions. [2022-11-02 21:06:19,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 102 transitions, 230 flow [2022-11-02 21:06:19,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 102 transitions, 230 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 21:06:19,053 INFO L231 Difference]: Finished difference. Result has 104 places, 99 transitions, 210 flow [2022-11-02 21:06:19,053 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=210, PETRI_PLACES=104, PETRI_TRANSITIONS=99} [2022-11-02 21:06:19,054 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 2 predicate places. [2022-11-02 21:06:19,054 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 99 transitions, 210 flow [2022-11-02 21:06:19,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states 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 21:06:19,055 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:06:19,056 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] [2022-11-02 21:06:19,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 21:06:19,056 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 21:06:19,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:06:19,057 INFO L85 PathProgramCache]: Analyzing trace with hash 624473633, now seen corresponding path program 1 times [2022-11-02 21:06:19,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:06:19,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789586741] [2022-11-02 21:06:19,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:19,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:06:19,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:19,225 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:06:19,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:06:19,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789586741] [2022-11-02 21:06:19,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789586741] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:06:19,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1912096630] [2022-11-02 21:06:19,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:19,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:06:19,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa9727-fdb7-4450-b5ff-afe4ff987296/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:06:19,230 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa9727-fdb7-4450-b5ff-afe4ff987296/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:06:19,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa9727-fdb7-4450-b5ff-afe4ff987296/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-02 21:06:19,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:19,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 21:06:19,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:06:19,455 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:06:19,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:06:19,503 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:06:19,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1912096630] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:06:19,504 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 21:06:19,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-02 21:06:19,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167369550] [2022-11-02 21:06:19,505 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 21:06:19,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:06:19,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:06:19,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:06:19,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:06:19,509 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 103 [2022-11-02 21:06:19,511 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 99 transitions, 210 flow. Second operand has 10 states, 10 states have (on average 93.1) internal successors, (931), 10 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:06:19,511 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:06:19,511 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 103 [2022-11-02 21:06:19,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:06:19,644 INFO L130 PetriNetUnfolder]: 1/109 cut-off events. [2022-11-02 21:06:19,644 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 21:06:19,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 109 events. 1/109 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 75 event pairs, 0 based on Foata normal form. 2/106 useless extension candidates. Maximal degree in co-relation 137. Up to 6 conditions per place. [2022-11-02 21:06:19,649 INFO L137 encePairwiseOnDemand]: 97/103 looper letters, 11 selfloop transitions, 9 changer transitions 0/109 dead transitions. [2022-11-02 21:06:19,650 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 109 transitions, 272 flow [2022-11-02 21:06:19,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 21:06:19,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-02 21:06:19,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 841 transitions. [2022-11-02 21:06:19,657 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9072276159654801 [2022-11-02 21:06:19,658 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 841 transitions. [2022-11-02 21:06:19,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 841 transitions. [2022-11-02 21:06:19,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:06:19,659 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 841 transitions. [2022-11-02 21:06:19,663 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 93.44444444444444) internal successors, (841), 9 states have internal predecessors, (841), 0 states have call successors, (0), 0 states 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 21:06:19,669 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 103.0) internal successors, (1030), 10 states have internal predecessors, (1030), 0 states have call successors, (0), 0 states 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 21:06:19,670 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 103.0) internal successors, (1030), 10 states have internal predecessors, (1030), 0 states have call successors, (0), 0 states 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 21:06:19,671 INFO L175 Difference]: Start difference. First operand has 104 places, 99 transitions, 210 flow. Second operand 9 states and 841 transitions. [2022-11-02 21:06:19,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 109 transitions, 272 flow [2022-11-02 21:06:19,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 109 transitions, 270 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 21:06:19,692 INFO L231 Difference]: Finished difference. Result has 114 places, 105 transitions, 258 flow [2022-11-02 21:06:19,692 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=258, PETRI_PLACES=114, PETRI_TRANSITIONS=105} [2022-11-02 21:06:19,695 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 12 predicate places. [2022-11-02 21:06:19,695 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 105 transitions, 258 flow [2022-11-02 21:06:19,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 93.1) internal successors, (931), 10 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:06:19,697 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:06:19,697 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:06:19,732 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa9727-fdb7-4450-b5ff-afe4ff987296/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-02 21:06:19,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa9727-fdb7-4450-b5ff-afe4ff987296/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:06:19,915 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 21:06:19,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:06:19,916 INFO L85 PathProgramCache]: Analyzing trace with hash 653292097, now seen corresponding path program 2 times [2022-11-02 21:06:19,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:06:19,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144011223] [2022-11-02 21:06:19,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:19,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:06:19,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:20,132 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:06:20,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:06:20,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144011223] [2022-11-02 21:06:20,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144011223] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:06:20,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548277] [2022-11-02 21:06:20,134 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 21:06:20,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:06:20,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa9727-fdb7-4450-b5ff-afe4ff987296/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:06:20,136 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa9727-fdb7-4450-b5ff-afe4ff987296/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:06:20,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa9727-fdb7-4450-b5ff-afe4ff987296/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-02 21:06:20,261 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-02 21:06:20,262 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 21:06:20,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-02 21:06:20,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:06:20,327 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-02 21:06:20,372 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2022-11-02 21:06:20,420 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 21:06:20,421 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2022-11-02 21:06:20,488 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 21:06:20,490 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2022-11-02 21:06:20,547 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-02 21:06:20,547 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:06:20,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1548277] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:06:20,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 21:06:20,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2022-11-02 21:06:20,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121312020] [2022-11-02 21:06:20,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:06:20,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:06:20,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:06:20,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:06:20,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-02 21:06:20,551 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 103 [2022-11-02 21:06:20,552 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 105 transitions, 258 flow. Second operand has 6 states, 6 states have (on average 66.33333333333333) internal successors, (398), 6 states have internal predecessors, (398), 0 states have call successors, (0), 0 states 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 21:06:20,553 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:06:20,553 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 103 [2022-11-02 21:06:20,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:06:21,084 INFO L130 PetriNetUnfolder]: 231/762 cut-off events. [2022-11-02 21:06:21,085 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-02 21:06:21,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1300 conditions, 762 events. 231/762 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 4153 event pairs, 103 based on Foata normal form. 0/693 useless extension candidates. Maximal degree in co-relation 1293. Up to 361 conditions per place. [2022-11-02 21:06:21,092 INFO L137 encePairwiseOnDemand]: 92/103 looper letters, 72 selfloop transitions, 22 changer transitions 0/163 dead transitions. [2022-11-02 21:06:21,092 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 163 transitions, 562 flow [2022-11-02 21:06:21,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:06:21,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:06:21,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 479 transitions. [2022-11-02 21:06:21,095 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7750809061488673 [2022-11-02 21:06:21,095 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 479 transitions. [2022-11-02 21:06:21,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 479 transitions. [2022-11-02 21:06:21,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:06:21,096 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 479 transitions. [2022-11-02 21:06:21,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 79.83333333333333) internal successors, (479), 6 states have internal predecessors, (479), 0 states have call successors, (0), 0 states 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 21:06:21,099 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states 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 21:06:21,100 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states 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 21:06:21,100 INFO L175 Difference]: Start difference. First operand has 114 places, 105 transitions, 258 flow. Second operand 6 states and 479 transitions. [2022-11-02 21:06:21,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 163 transitions, 562 flow [2022-11-02 21:06:21,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 163 transitions, 556 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-11-02 21:06:21,106 INFO L231 Difference]: Finished difference. Result has 123 places, 126 transitions, 402 flow [2022-11-02 21:06:21,106 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=402, PETRI_PLACES=123, PETRI_TRANSITIONS=126} [2022-11-02 21:06:21,107 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 21 predicate places. [2022-11-02 21:06:21,107 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 126 transitions, 402 flow [2022-11-02 21:06:21,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.33333333333333) internal successors, (398), 6 states have internal predecessors, (398), 0 states have call successors, (0), 0 states 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 21:06:21,108 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:06:21,108 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:06:21,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa9727-fdb7-4450-b5ff-afe4ff987296/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-02 21:06:21,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa9727-fdb7-4450-b5ff-afe4ff987296/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:06:21,327 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 21:06:21,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:06:21,328 INFO L85 PathProgramCache]: Analyzing trace with hash -406389930, now seen corresponding path program 1 times [2022-11-02 21:06:21,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:06:21,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157525164] [2022-11-02 21:06:21,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:21,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:06:21,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:21,644 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:06:21,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:06:21,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157525164] [2022-11-02 21:06:21,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157525164] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:06:21,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1072406056] [2022-11-02 21:06:21,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:21,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:06:21,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa9727-fdb7-4450-b5ff-afe4ff987296/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:06:21,655 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa9727-fdb7-4450-b5ff-afe4ff987296/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:06:21,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa9727-fdb7-4450-b5ff-afe4ff987296/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-02 21:06:21,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:21,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 21:06:21,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:06:21,881 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:06:21,883 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:06:21,999 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:06:21,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1072406056] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:06:22,000 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 21:06:22,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-02 21:06:22,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967299788] [2022-11-02 21:06:22,001 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 21:06:22,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 21:06:22,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:06:22,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 21:06:22,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:06:22,010 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 103 [2022-11-02 21:06:22,014 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 126 transitions, 402 flow. Second operand has 18 states, 18 states have (on average 93.27777777777777) internal successors, (1679), 18 states have internal predecessors, (1679), 0 states have call successors, (0), 0 states 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 21:06:22,014 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:06:22,014 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 103 [2022-11-02 21:06:22,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:06:22,305 INFO L130 PetriNetUnfolder]: 40/290 cut-off events. [2022-11-02 21:06:22,306 INFO L131 PetriNetUnfolder]: For 43/46 co-relation queries the response was YES. [2022-11-02 21:06:22,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 536 conditions, 290 events. 40/290 cut-off events. For 43/46 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 876 event pairs, 4 based on Foata normal form. 4/281 useless extension candidates. Maximal degree in co-relation 524. Up to 49 conditions per place. [2022-11-02 21:06:22,310 INFO L137 encePairwiseOnDemand]: 97/103 looper letters, 19 selfloop transitions, 21 changer transitions 0/150 dead transitions. [2022-11-02 21:06:22,311 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 150 transitions, 582 flow [2022-11-02 21:06:22,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-02 21:06:22,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-02 21:06:22,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1955 transitions. [2022-11-02 21:06:22,316 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.903837263060564 [2022-11-02 21:06:22,316 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1955 transitions. [2022-11-02 21:06:22,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1955 transitions. [2022-11-02 21:06:22,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:06:22,318 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1955 transitions. [2022-11-02 21:06:22,323 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 93.0952380952381) internal successors, (1955), 21 states have internal predecessors, (1955), 0 states have call successors, (0), 0 states 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 21:06:22,327 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 103.0) internal successors, (2266), 22 states have internal predecessors, (2266), 0 states have call successors, (0), 0 states 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 21:06:22,331 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 103.0) internal successors, (2266), 22 states have internal predecessors, (2266), 0 states have call successors, (0), 0 states 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 21:06:22,331 INFO L175 Difference]: Start difference. First operand has 123 places, 126 transitions, 402 flow. Second operand 21 states and 1955 transitions. [2022-11-02 21:06:22,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 150 transitions, 582 flow [2022-11-02 21:06:22,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 150 transitions, 582 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 21:06:22,343 INFO L231 Difference]: Finished difference. Result has 148 places, 139 transitions, 532 flow [2022-11-02 21:06:22,343 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=402, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=532, PETRI_PLACES=148, PETRI_TRANSITIONS=139} [2022-11-02 21:06:22,347 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 46 predicate places. [2022-11-02 21:06:22,347 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 139 transitions, 532 flow [2022-11-02 21:06:22,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 93.27777777777777) internal successors, (1679), 18 states have internal predecessors, (1679), 0 states have call successors, (0), 0 states 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 21:06:22,348 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:06:22,349 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:06:22,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa9727-fdb7-4450-b5ff-afe4ff987296/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-02 21:06:22,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa9727-fdb7-4450-b5ff-afe4ff987296/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:06:22,571 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 21:06:22,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:06:22,571 INFO L85 PathProgramCache]: Analyzing trace with hash 232143766, now seen corresponding path program 2 times [2022-11-02 21:06:22,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:06:22,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732083530] [2022-11-02 21:06:22,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:22,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:06:22,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,077 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:06:23,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:06:23,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732083530] [2022-11-02 21:06:23,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732083530] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:06:23,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [140916427] [2022-11-02 21:06:23,079 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 21:06:23,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:06:23,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa9727-fdb7-4450-b5ff-afe4ff987296/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:06:23,083 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa9727-fdb7-4450-b5ff-afe4ff987296/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:06:23,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa9727-fdb7-4450-b5ff-afe4ff987296/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-02 21:06:23,195 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-02 21:06:23,196 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 21:06:23,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-02 21:06:23,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:06:23,211 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-02 21:06:23,234 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2022-11-02 21:06:23,271 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 21:06:23,272 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2022-11-02 21:06:23,327 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 21:06:23,327 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2022-11-02 21:06:23,370 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-02 21:06:23,370 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:06:23,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [140916427] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:06:23,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 21:06:23,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2022-11-02 21:06:23,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711916912] [2022-11-02 21:06:23,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:06:23,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:06:23,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:06:23,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:06:23,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2022-11-02 21:06:23,378 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 103 [2022-11-02 21:06:23,379 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 139 transitions, 532 flow. Second operand has 6 states, 6 states have (on average 65.5) internal successors, (393), 6 states have internal predecessors, (393), 0 states have call successors, (0), 0 states 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 21:06:23,379 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:06:23,380 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 103 [2022-11-02 21:06:23,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:06:23,920 INFO L130 PetriNetUnfolder]: 315/1034 cut-off events. [2022-11-02 21:06:23,920 INFO L131 PetriNetUnfolder]: For 265/269 co-relation queries the response was YES. [2022-11-02 21:06:23,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2160 conditions, 1034 events. 315/1034 cut-off events. For 265/269 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 6055 event pairs, 133 based on Foata normal form. 4/961 useless extension candidates. Maximal degree in co-relation 2143. Up to 572 conditions per place. [2022-11-02 21:06:23,928 INFO L137 encePairwiseOnDemand]: 88/103 looper letters, 73 selfloop transitions, 39 changer transitions 5/196 dead transitions. [2022-11-02 21:06:23,929 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 196 transitions, 910 flow [2022-11-02 21:06:23,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:06:23,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:06:23,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 468 transitions. [2022-11-02 21:06:23,931 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7572815533980582 [2022-11-02 21:06:23,931 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 468 transitions. [2022-11-02 21:06:23,931 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 468 transitions. [2022-11-02 21:06:23,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:06:23,932 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 468 transitions. [2022-11-02 21:06:23,933 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 78.0) internal successors, (468), 6 states have internal predecessors, (468), 0 states have call successors, (0), 0 states 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 21:06:23,935 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states 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 21:06:23,935 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states 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 21:06:23,935 INFO L175 Difference]: Start difference. First operand has 148 places, 139 transitions, 532 flow. Second operand 6 states and 468 transitions. [2022-11-02 21:06:23,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 196 transitions, 910 flow [2022-11-02 21:06:23,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 196 transitions, 886 flow, removed 6 selfloop flow, removed 6 redundant places. [2022-11-02 21:06:23,944 INFO L231 Difference]: Finished difference. Result has 152 places, 175 transitions, 796 flow [2022-11-02 21:06:23,944 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=508, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=796, PETRI_PLACES=152, PETRI_TRANSITIONS=175} [2022-11-02 21:06:23,945 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 50 predicate places. [2022-11-02 21:06:23,945 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 175 transitions, 796 flow [2022-11-02 21:06:23,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 65.5) internal successors, (393), 6 states have internal predecessors, (393), 0 states have call successors, (0), 0 states 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 21:06:23,946 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:06:23,946 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:06:23,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa9727-fdb7-4450-b5ff-afe4ff987296/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-02 21:06:24,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa9727-fdb7-4450-b5ff-afe4ff987296/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:06:24,167 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 21:06:24,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:06:24,167 INFO L85 PathProgramCache]: Analyzing trace with hash -109360466, now seen corresponding path program 1 times [2022-11-02 21:06:24,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:06:24,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180057797] [2022-11-02 21:06:24,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:24,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:06:24,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:24,607 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:06:24,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:06:24,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180057797] [2022-11-02 21:06:24,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180057797] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:06:24,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [897285972] [2022-11-02 21:06:24,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:24,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:06:24,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa9727-fdb7-4450-b5ff-afe4ff987296/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:06:24,613 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa9727-fdb7-4450-b5ff-afe4ff987296/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:06:24,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa9727-fdb7-4450-b5ff-afe4ff987296/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-02 21:06:24,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:24,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-02 21:06:24,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:06:24,843 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:06:24,843 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:06:25,098 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:06:25,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [897285972] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:06:25,099 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 21:06:25,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-11-02 21:06:25,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464455379] [2022-11-02 21:06:25,100 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 21:06:25,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-02 21:06:25,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:06:25,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-02 21:06:25,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-11-02 21:06:25,105 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 103 [2022-11-02 21:06:25,109 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 175 transitions, 796 flow. Second operand has 23 states, 23 states have (on average 93.43478260869566) internal successors, (2149), 23 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states 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 21:06:25,109 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:06:25,109 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 103 [2022-11-02 21:06:25,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:06:25,656 INFO L130 PetriNetUnfolder]: 109/546 cut-off events. [2022-11-02 21:06:25,657 INFO L131 PetriNetUnfolder]: For 297/310 co-relation queries the response was YES. [2022-11-02 21:06:25,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1219 conditions, 546 events. 109/546 cut-off events. For 297/310 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2646 event pairs, 8 based on Foata normal form. 7/533 useless extension candidates. Maximal degree in co-relation 1197. Up to 115 conditions per place. [2022-11-02 21:06:25,662 INFO L137 encePairwiseOnDemand]: 97/103 looper letters, 25 selfloop transitions, 30 changer transitions 0/201 dead transitions. [2022-11-02 21:06:25,662 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 201 transitions, 1046 flow [2022-11-02 21:06:25,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-02 21:06:25,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-02 21:06:25,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 2788 transitions. [2022-11-02 21:06:25,669 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9022653721682848 [2022-11-02 21:06:25,670 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 2788 transitions. [2022-11-02 21:06:25,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 2788 transitions. [2022-11-02 21:06:25,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:06:25,672 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 2788 transitions. [2022-11-02 21:06:25,678 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 92.93333333333334) internal successors, (2788), 30 states have internal predecessors, (2788), 0 states have call successors, (0), 0 states 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 21:06:25,685 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 103.0) internal successors, (3193), 31 states have internal predecessors, (3193), 0 states have call successors, (0), 0 states 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 21:06:25,687 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 103.0) internal successors, (3193), 31 states have internal predecessors, (3193), 0 states have call successors, (0), 0 states 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 21:06:25,687 INFO L175 Difference]: Start difference. First operand has 152 places, 175 transitions, 796 flow. Second operand 30 states and 2788 transitions. [2022-11-02 21:06:25,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 201 transitions, 1046 flow [2022-11-02 21:06:25,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 201 transitions, 1014 flow, removed 16 selfloop flow, removed 0 redundant places. [2022-11-02 21:06:25,697 INFO L231 Difference]: Finished difference. Result has 184 places, 185 transitions, 916 flow [2022-11-02 21:06:25,698 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=764, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=916, PETRI_PLACES=184, PETRI_TRANSITIONS=185} [2022-11-02 21:06:25,699 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 82 predicate places. [2022-11-02 21:06:25,699 INFO L495 AbstractCegarLoop]: Abstraction has has 184 places, 185 transitions, 916 flow [2022-11-02 21:06:25,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 93.43478260869566) internal successors, (2149), 23 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states 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 21:06:25,700 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:06:25,700 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:06:25,739 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa9727-fdb7-4450-b5ff-afe4ff987296/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-02 21:06:25,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa9727-fdb7-4450-b5ff-afe4ff987296/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-02 21:06:25,927 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 21:06:25,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:06:25,927 INFO L85 PathProgramCache]: Analyzing trace with hash 827906497, now seen corresponding path program 2 times [2022-11-02 21:06:25,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:06:25,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145823462] [2022-11-02 21:06:25,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:25,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:06:25,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:26,444 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 21:06:26,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:06:26,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145823462] [2022-11-02 21:06:26,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145823462] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:06:26,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:06:26,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:06:26,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569391920] [2022-11-02 21:06:26,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:06:26,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:06:26,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:06:26,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:06:26,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:06:26,448 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 103 [2022-11-02 21:06:26,448 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 185 transitions, 916 flow. Second operand has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 0 states have call successors, (0), 0 states 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 21:06:26,449 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:06:26,449 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 103 [2022-11-02 21:06:26,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:06:26,911 INFO L130 PetriNetUnfolder]: 321/1076 cut-off events. [2022-11-02 21:06:26,912 INFO L131 PetriNetUnfolder]: For 778/786 co-relation queries the response was YES. [2022-11-02 21:06:26,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2828 conditions, 1076 events. 321/1076 cut-off events. For 778/786 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 6310 event pairs, 77 based on Foata normal form. 0/1029 useless extension candidates. Maximal degree in co-relation 2802. Up to 538 conditions per place. [2022-11-02 21:06:26,922 INFO L137 encePairwiseOnDemand]: 92/103 looper letters, 108 selfloop transitions, 40 changer transitions 0/246 dead transitions. [2022-11-02 21:06:26,922 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 246 transitions, 1538 flow [2022-11-02 21:06:26,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:06:26,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:06:26,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 501 transitions. [2022-11-02 21:06:26,924 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8106796116504854 [2022-11-02 21:06:26,924 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 501 transitions. [2022-11-02 21:06:26,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 501 transitions. [2022-11-02 21:06:26,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:06:26,925 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 501 transitions. [2022-11-02 21:06:26,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 83.5) internal successors, (501), 6 states have internal predecessors, (501), 0 states have call successors, (0), 0 states 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 21:06:26,927 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states 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 21:06:26,927 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states 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 21:06:26,928 INFO L175 Difference]: Start difference. First operand has 184 places, 185 transitions, 916 flow. Second operand 6 states and 501 transitions. [2022-11-02 21:06:26,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 246 transitions, 1538 flow [2022-11-02 21:06:26,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 246 transitions, 1492 flow, removed 5 selfloop flow, removed 18 redundant places. [2022-11-02 21:06:26,946 INFO L231 Difference]: Finished difference. Result has 176 places, 216 transitions, 1238 flow [2022-11-02 21:06:26,946 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=870, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1238, PETRI_PLACES=176, PETRI_TRANSITIONS=216} [2022-11-02 21:06:26,949 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 74 predicate places. [2022-11-02 21:06:26,949 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 216 transitions, 1238 flow [2022-11-02 21:06:26,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 0 states have call successors, (0), 0 states 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 21:06:26,949 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:06:26,950 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:06:26,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 21:06:26,950 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 21:06:26,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:06:26,950 INFO L85 PathProgramCache]: Analyzing trace with hash -1432249786, now seen corresponding path program 1 times [2022-11-02 21:06:26,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:06:26,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943287527] [2022-11-02 21:06:26,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:26,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:06:26,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:27,458 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 21:06:27,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:06:27,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943287527] [2022-11-02 21:06:27,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943287527] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:06:27,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:06:27,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:06:27,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788112044] [2022-11-02 21:06:27,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:06:27,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:06:27,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:06:27,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:06:27,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:06:27,462 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 103 [2022-11-02 21:06:27,462 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 216 transitions, 1238 flow. Second operand has 6 states, 6 states have (on average 70.66666666666667) internal successors, (424), 6 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:06:27,463 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:06:27,463 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 103 [2022-11-02 21:06:27,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:06:28,001 INFO L130 PetriNetUnfolder]: 432/1355 cut-off events. [2022-11-02 21:06:28,001 INFO L131 PetriNetUnfolder]: For 1520/1527 co-relation queries the response was YES. [2022-11-02 21:06:28,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4023 conditions, 1355 events. 432/1355 cut-off events. For 1520/1527 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 8396 event pairs, 122 based on Foata normal form. 0/1322 useless extension candidates. Maximal degree in co-relation 3992. Up to 770 conditions per place. [2022-11-02 21:06:28,016 INFO L137 encePairwiseOnDemand]: 88/103 looper letters, 115 selfloop transitions, 58 changer transitions 18/287 dead transitions. [2022-11-02 21:06:28,016 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 287 transitions, 2032 flow [2022-11-02 21:06:28,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:06:28,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:06:28,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 494 transitions. [2022-11-02 21:06:28,018 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7993527508090615 [2022-11-02 21:06:28,019 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 494 transitions. [2022-11-02 21:06:28,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 494 transitions. [2022-11-02 21:06:28,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:06:28,019 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 494 transitions. [2022-11-02 21:06:28,021 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 82.33333333333333) internal successors, (494), 6 states have internal predecessors, (494), 0 states have call successors, (0), 0 states 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 21:06:28,022 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states 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 21:06:28,023 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states 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 21:06:28,023 INFO L175 Difference]: Start difference. First operand has 176 places, 216 transitions, 1238 flow. Second operand 6 states and 494 transitions. [2022-11-02 21:06:28,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 287 transitions, 2032 flow [2022-11-02 21:06:28,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 287 transitions, 2014 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-11-02 21:06:28,048 INFO L231 Difference]: Finished difference. Result has 186 places, 257 transitions, 1740 flow [2022-11-02 21:06:28,048 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=1220, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1740, PETRI_PLACES=186, PETRI_TRANSITIONS=257} [2022-11-02 21:06:28,049 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 84 predicate places. [2022-11-02 21:06:28,050 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 257 transitions, 1740 flow [2022-11-02 21:06:28,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 70.66666666666667) internal successors, (424), 6 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:06:28,050 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:06:28,051 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:06:28,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 21:06:28,051 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 21:06:28,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:06:28,052 INFO L85 PathProgramCache]: Analyzing trace with hash 906953438, now seen corresponding path program 1 times [2022-11-02 21:06:28,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:06:28,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216892338] [2022-11-02 21:06:28,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:28,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:06:28,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:29,479 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 21:06:29,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:06:29,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216892338] [2022-11-02 21:06:29,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216892338] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:06:29,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:06:29,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:06:29,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276087380] [2022-11-02 21:06:29,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:06:29,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:06:29,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:06:29,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:06:29,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:06:29,482 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2022-11-02 21:06:29,483 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 257 transitions, 1740 flow. Second operand has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states 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 21:06:29,483 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:06:29,483 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2022-11-02 21:06:29,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:06:30,659 INFO L130 PetriNetUnfolder]: 602/1810 cut-off events. [2022-11-02 21:06:30,659 INFO L131 PetriNetUnfolder]: For 3025/3041 co-relation queries the response was YES. [2022-11-02 21:06:30,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6080 conditions, 1810 events. 602/1810 cut-off events. For 3025/3041 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 11860 event pairs, 47 based on Foata normal form. 16/1813 useless extension candidates. Maximal degree in co-relation 6044. Up to 853 conditions per place. [2022-11-02 21:06:30,681 INFO L137 encePairwiseOnDemand]: 83/103 looper letters, 209 selfloop transitions, 77 changer transitions 46/418 dead transitions. [2022-11-02 21:06:30,681 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 418 transitions, 3462 flow [2022-11-02 21:06:30,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 21:06:30,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-02 21:06:30,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 852 transitions. [2022-11-02 21:06:30,684 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6893203883495146 [2022-11-02 21:06:30,684 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 852 transitions. [2022-11-02 21:06:30,685 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 852 transitions. [2022-11-02 21:06:30,685 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:06:30,686 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 852 transitions. [2022-11-02 21:06:30,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 71.0) internal successors, (852), 12 states have internal predecessors, (852), 0 states have call successors, (0), 0 states 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 21:06:30,692 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 21:06:30,693 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 21:06:30,693 INFO L175 Difference]: Start difference. First operand has 186 places, 257 transitions, 1740 flow. Second operand 12 states and 852 transitions. [2022-11-02 21:06:30,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 418 transitions, 3462 flow [2022-11-02 21:06:30,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 418 transitions, 3382 flow, removed 40 selfloop flow, removed 0 redundant places. [2022-11-02 21:06:30,740 INFO L231 Difference]: Finished difference. Result has 205 places, 293 transitions, 2283 flow [2022-11-02 21:06:30,741 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=1672, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2283, PETRI_PLACES=205, PETRI_TRANSITIONS=293} [2022-11-02 21:06:30,742 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 103 predicate places. [2022-11-02 21:06:30,742 INFO L495 AbstractCegarLoop]: Abstraction has has 205 places, 293 transitions, 2283 flow [2022-11-02 21:06:30,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states 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 21:06:30,743 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:06:30,743 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:06:30,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 21:06:30,744 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 21:06:30,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:06:30,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1475514096, now seen corresponding path program 2 times [2022-11-02 21:06:30,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:06:30,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326812226] [2022-11-02 21:06:30,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:30,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:06:30,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:31,892 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 21:06:31,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:06:31,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326812226] [2022-11-02 21:06:31,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326812226] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:06:31,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:06:31,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:06:31,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478353316] [2022-11-02 21:06:31,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:06:31,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:06:31,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:06:31,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:06:31,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:06:31,895 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2022-11-02 21:06:31,896 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 293 transitions, 2283 flow. Second operand has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states 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 21:06:31,896 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:06:31,896 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2022-11-02 21:06:31,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:06:33,161 INFO L130 PetriNetUnfolder]: 568/1707 cut-off events. [2022-11-02 21:06:33,161 INFO L131 PetriNetUnfolder]: For 4550/4571 co-relation queries the response was YES. [2022-11-02 21:06:33,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6668 conditions, 1707 events. 568/1707 cut-off events. For 4550/4571 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 10994 event pairs, 140 based on Foata normal form. 14/1709 useless extension candidates. Maximal degree in co-relation 6623. Up to 869 conditions per place. [2022-11-02 21:06:33,191 INFO L137 encePairwiseOnDemand]: 83/103 looper letters, 192 selfloop transitions, 80 changer transitions 25/383 dead transitions. [2022-11-02 21:06:33,191 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 383 transitions, 3436 flow [2022-11-02 21:06:33,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 21:06:33,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-02 21:06:33,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 672 transitions. [2022-11-02 21:06:33,196 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7249190938511327 [2022-11-02 21:06:33,196 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 672 transitions. [2022-11-02 21:06:33,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 672 transitions. [2022-11-02 21:06:33,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:06:33,197 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 672 transitions. [2022-11-02 21:06:33,201 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 74.66666666666667) internal successors, (672), 9 states have internal predecessors, (672), 0 states have call successors, (0), 0 states 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 21:06:33,208 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 103.0) internal successors, (1030), 10 states have internal predecessors, (1030), 0 states have call successors, (0), 0 states 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 21:06:33,210 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 103.0) internal successors, (1030), 10 states have internal predecessors, (1030), 0 states have call successors, (0), 0 states 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 21:06:33,210 INFO L175 Difference]: Start difference. First operand has 205 places, 293 transitions, 2283 flow. Second operand 9 states and 672 transitions. [2022-11-02 21:06:33,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 383 transitions, 3436 flow [2022-11-02 21:06:33,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 383 transitions, 3406 flow, removed 12 selfloop flow, removed 1 redundant places. [2022-11-02 21:06:33,273 INFO L231 Difference]: Finished difference. Result has 213 places, 297 transitions, 2490 flow [2022-11-02 21:06:33,273 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=2258, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2490, PETRI_PLACES=213, PETRI_TRANSITIONS=297} [2022-11-02 21:06:33,274 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 111 predicate places. [2022-11-02 21:06:33,274 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 297 transitions, 2490 flow [2022-11-02 21:06:33,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states 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 21:06:33,275 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:06:33,275 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:06:33,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 21:06:33,275 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 21:06:33,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:06:33,276 INFO L85 PathProgramCache]: Analyzing trace with hash 386395008, now seen corresponding path program 3 times [2022-11-02 21:06:33,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:06:33,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477198158] [2022-11-02 21:06:33,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:33,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:06:33,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:34,423 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 21:06:34,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:06:34,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477198158] [2022-11-02 21:06:34,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477198158] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:06:34,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:06:34,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:06:34,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638605344] [2022-11-02 21:06:34,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:06:34,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:06:34,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:06:34,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:06:34,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:06:34,427 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2022-11-02 21:06:34,428 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 297 transitions, 2490 flow. Second operand has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states 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 21:06:34,428 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:06:34,428 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2022-11-02 21:06:34,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:06:36,983 INFO L130 PetriNetUnfolder]: 1074/2908 cut-off events. [2022-11-02 21:06:36,983 INFO L131 PetriNetUnfolder]: For 10675/10710 co-relation queries the response was YES. [2022-11-02 21:06:37,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12512 conditions, 2908 events. 1074/2908 cut-off events. For 10675/10710 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 21325 event pairs, 128 based on Foata normal form. 28/2920 useless extension candidates. Maximal degree in co-relation 12464. Up to 953 conditions per place. [2022-11-02 21:06:37,033 INFO L137 encePairwiseOnDemand]: 85/103 looper letters, 382 selfloop transitions, 95 changer transitions 25/588 dead transitions. [2022-11-02 21:06:37,033 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 588 transitions, 6196 flow [2022-11-02 21:06:37,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 21:06:37,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-02 21:06:37,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 811 transitions. [2022-11-02 21:06:37,037 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7157987643424537 [2022-11-02 21:06:37,037 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 811 transitions. [2022-11-02 21:06:37,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 811 transitions. [2022-11-02 21:06:37,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:06:37,038 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 811 transitions. [2022-11-02 21:06:37,041 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 73.72727272727273) internal successors, (811), 11 states have internal predecessors, (811), 0 states have call successors, (0), 0 states 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 21:06:37,045 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 21:06:37,046 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 21:06:37,046 INFO L175 Difference]: Start difference. First operand has 213 places, 297 transitions, 2490 flow. Second operand 11 states and 811 transitions. [2022-11-02 21:06:37,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 588 transitions, 6196 flow [2022-11-02 21:06:37,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 588 transitions, 6056 flow, removed 2 selfloop flow, removed 4 redundant places. [2022-11-02 21:06:37,174 INFO L231 Difference]: Finished difference. Result has 226 places, 377 transitions, 3903 flow [2022-11-02 21:06:37,176 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=2425, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3903, PETRI_PLACES=226, PETRI_TRANSITIONS=377} [2022-11-02 21:06:37,177 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 124 predicate places. [2022-11-02 21:06:37,177 INFO L495 AbstractCegarLoop]: Abstraction has has 226 places, 377 transitions, 3903 flow [2022-11-02 21:06:37,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states 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 21:06:37,178 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:06:37,178 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:06:37,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-02 21:06:37,179 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 21:06:37,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:06:37,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1525410592, now seen corresponding path program 4 times [2022-11-02 21:06:37,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:06:37,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324044465] [2022-11-02 21:06:37,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:37,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:06:37,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:38,488 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 21:06:38,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:06:38,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324044465] [2022-11-02 21:06:38,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324044465] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:06:38,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:06:38,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:06:38,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147382758] [2022-11-02 21:06:38,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:06:38,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:06:38,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:06:38,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:06:38,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:06:38,492 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2022-11-02 21:06:38,493 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 377 transitions, 3903 flow. Second operand has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states 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 21:06:38,493 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:06:38,493 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2022-11-02 21:06:38,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:06:40,654 INFO L130 PetriNetUnfolder]: 1063/3139 cut-off events. [2022-11-02 21:06:40,655 INFO L131 PetriNetUnfolder]: For 14517/14560 co-relation queries the response was YES. [2022-11-02 21:06:40,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13703 conditions, 3139 events. 1063/3139 cut-off events. For 14517/14560 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 24331 event pairs, 144 based on Foata normal form. 30/3151 useless extension candidates. Maximal degree in co-relation 13648. Up to 990 conditions per place. [2022-11-02 21:06:40,699 INFO L137 encePairwiseOnDemand]: 85/103 looper letters, 388 selfloop transitions, 104 changer transitions 31/609 dead transitions. [2022-11-02 21:06:40,699 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 609 transitions, 6799 flow [2022-11-02 21:06:40,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 21:06:40,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-02 21:06:40,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 773 transitions. [2022-11-02 21:06:40,702 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7504854368932039 [2022-11-02 21:06:40,702 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 773 transitions. [2022-11-02 21:06:40,702 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 773 transitions. [2022-11-02 21:06:40,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:06:40,703 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 773 transitions. [2022-11-02 21:06:40,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states 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 21:06:40,707 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 103.0) internal successors, (1133), 11 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states 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 21:06:40,708 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 103.0) internal successors, (1133), 11 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states 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 21:06:40,708 INFO L175 Difference]: Start difference. First operand has 226 places, 377 transitions, 3903 flow. Second operand 10 states and 773 transitions. [2022-11-02 21:06:40,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 609 transitions, 6799 flow [2022-11-02 21:06:40,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 609 transitions, 6751 flow, removed 24 selfloop flow, removed 0 redundant places. [2022-11-02 21:06:40,857 INFO L231 Difference]: Finished difference. Result has 241 places, 403 transitions, 4592 flow [2022-11-02 21:06:40,858 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=3855, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=377, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=283, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4592, PETRI_PLACES=241, PETRI_TRANSITIONS=403} [2022-11-02 21:06:40,859 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 139 predicate places. [2022-11-02 21:06:40,859 INFO L495 AbstractCegarLoop]: Abstraction has has 241 places, 403 transitions, 4592 flow [2022-11-02 21:06:40,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states 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 21:06:40,860 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:06:40,860 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:06:40,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-02 21:06:40,861 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 21:06:40,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:06:40,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1432498022, now seen corresponding path program 5 times [2022-11-02 21:06:40,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:06:40,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831117811] [2022-11-02 21:06:40,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:40,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:06:40,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:41,946 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 21:06:41,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:06:41,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831117811] [2022-11-02 21:06:41,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831117811] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:06:41,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:06:41,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:06:41,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719038031] [2022-11-02 21:06:41,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:06:41,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:06:41,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:06:41,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:06:41,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:06:41,948 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2022-11-02 21:06:41,949 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 403 transitions, 4592 flow. Second operand has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states 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 21:06:41,949 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:06:41,949 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2022-11-02 21:06:41,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:06:44,216 INFO L130 PetriNetUnfolder]: 1073/3086 cut-off events. [2022-11-02 21:06:44,217 INFO L131 PetriNetUnfolder]: For 18816/18858 co-relation queries the response was YES. [2022-11-02 21:06:44,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14713 conditions, 3086 events. 1073/3086 cut-off events. For 18816/18858 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 23768 event pairs, 182 based on Foata normal form. 28/3095 useless extension candidates. Maximal degree in co-relation 14651. Up to 1627 conditions per place. [2022-11-02 21:06:44,264 INFO L137 encePairwiseOnDemand]: 83/103 looper letters, 237 selfloop transitions, 158 changer transitions 21/502 dead transitions. [2022-11-02 21:06:44,265 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 502 transitions, 6240 flow [2022-11-02 21:06:44,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 21:06:44,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-02 21:06:44,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 857 transitions. [2022-11-02 21:06:44,267 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6933656957928802 [2022-11-02 21:06:44,268 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 857 transitions. [2022-11-02 21:06:44,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 857 transitions. [2022-11-02 21:06:44,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:06:44,268 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 857 transitions. [2022-11-02 21:06:44,270 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 71.41666666666667) internal successors, (857), 12 states have internal predecessors, (857), 0 states have call successors, (0), 0 states 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 21:06:44,273 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 21:06:44,274 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 21:06:44,274 INFO L175 Difference]: Start difference. First operand has 241 places, 403 transitions, 4592 flow. Second operand 12 states and 857 transitions. [2022-11-02 21:06:44,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 502 transitions, 6240 flow [2022-11-02 21:06:44,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 502 transitions, 6096 flow, removed 69 selfloop flow, removed 1 redundant places. [2022-11-02 21:06:44,443 INFO L231 Difference]: Finished difference. Result has 256 places, 417 transitions, 5035 flow [2022-11-02 21:06:44,444 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=4451, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=403, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=146, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=5035, PETRI_PLACES=256, PETRI_TRANSITIONS=417} [2022-11-02 21:06:44,444 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 154 predicate places. [2022-11-02 21:06:44,444 INFO L495 AbstractCegarLoop]: Abstraction has has 256 places, 417 transitions, 5035 flow [2022-11-02 21:06:44,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states 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 21:06:44,445 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:06:44,445 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:06:44,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-02 21:06:44,446 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 21:06:44,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:06:44,446 INFO L85 PathProgramCache]: Analyzing trace with hash 706483278, now seen corresponding path program 6 times [2022-11-02 21:06:44,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:06:44,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442607113] [2022-11-02 21:06:44,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:44,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:06:44,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:45,623 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 21:06:45,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:06:45,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442607113] [2022-11-02 21:06:45,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442607113] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:06:45,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:06:45,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:06:45,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077913936] [2022-11-02 21:06:45,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:06:45,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:06:45,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:06:45,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:06:45,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:06:45,626 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2022-11-02 21:06:45,627 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 417 transitions, 5035 flow. Second operand has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states 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 21:06:45,627 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:06:45,627 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2022-11-02 21:06:45,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:06:47,706 INFO L130 PetriNetUnfolder]: 1066/3135 cut-off events. [2022-11-02 21:06:47,706 INFO L131 PetriNetUnfolder]: For 21196/21238 co-relation queries the response was YES. [2022-11-02 21:06:47,729 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15282 conditions, 3135 events. 1066/3135 cut-off events. For 21196/21238 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 24378 event pairs, 131 based on Foata normal form. 32/3151 useless extension candidates. Maximal degree in co-relation 15215. Up to 943 conditions per place. [2022-11-02 21:06:47,743 INFO L137 encePairwiseOnDemand]: 85/103 looper letters, 430 selfloop transitions, 108 changer transitions 38/662 dead transitions. [2022-11-02 21:06:47,744 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 662 transitions, 8241 flow [2022-11-02 21:06:47,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 21:06:47,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-02 21:06:47,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 844 transitions. [2022-11-02 21:06:47,748 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7449249779346867 [2022-11-02 21:06:47,748 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 844 transitions. [2022-11-02 21:06:47,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 844 transitions. [2022-11-02 21:06:47,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:06:47,749 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 844 transitions. [2022-11-02 21:06:47,751 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 76.72727272727273) internal successors, (844), 11 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:06:47,753 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 21:06:47,754 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 21:06:47,755 INFO L175 Difference]: Start difference. First operand has 256 places, 417 transitions, 5035 flow. Second operand 11 states and 844 transitions. [2022-11-02 21:06:47,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 662 transitions, 8241 flow [2022-11-02 21:06:47,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 261 places, 662 transitions, 7891 flow, removed 30 selfloop flow, removed 5 redundant places. [2022-11-02 21:06:47,963 INFO L231 Difference]: Finished difference. Result has 266 places, 439 transitions, 5393 flow [2022-11-02 21:06:47,964 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=4741, PETRI_DIFFERENCE_MINUEND_PLACES=251, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=417, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=319, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=5393, PETRI_PLACES=266, PETRI_TRANSITIONS=439} [2022-11-02 21:06:47,964 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 164 predicate places. [2022-11-02 21:06:47,964 INFO L495 AbstractCegarLoop]: Abstraction has has 266 places, 439 transitions, 5393 flow [2022-11-02 21:06:47,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states 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 21:06:47,974 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:06:47,975 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:06:47,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-02 21:06:47,975 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 21:06:47,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:06:47,976 INFO L85 PathProgramCache]: Analyzing trace with hash -822391322, now seen corresponding path program 7 times [2022-11-02 21:06:47,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:06:47,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288651573] [2022-11-02 21:06:47,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:47,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:06:48,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:49,438 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 21:06:49,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:06:49,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288651573] [2022-11-02 21:06:49,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288651573] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:06:49,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:06:49,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-02 21:06:49,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149032326] [2022-11-02 21:06:49,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:06:49,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-02 21:06:49,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:06:49,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-02 21:06:49,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-11-02 21:06:49,442 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 103 [2022-11-02 21:06:49,444 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 439 transitions, 5393 flow. Second operand has 19 states, 19 states have (on average 51.526315789473685) internal successors, (979), 19 states have internal predecessors, (979), 0 states have call successors, (0), 0 states 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 21:06:49,444 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:06:49,444 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 103 [2022-11-02 21:06:49,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:06:53,966 INFO L130 PetriNetUnfolder]: 1605/4211 cut-off events. [2022-11-02 21:06:53,966 INFO L131 PetriNetUnfolder]: For 31611/31627 co-relation queries the response was YES. [2022-11-02 21:06:53,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21390 conditions, 4211 events. 1605/4211 cut-off events. For 31611/31627 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 33351 event pairs, 159 based on Foata normal form. 4/4192 useless extension candidates. Maximal degree in co-relation 21318. Up to 1121 conditions per place. [2022-11-02 21:06:54,013 INFO L137 encePairwiseOnDemand]: 74/103 looper letters, 363 selfloop transitions, 247 changer transitions 54/742 dead transitions. [2022-11-02 21:06:54,014 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 742 transitions, 10223 flow [2022-11-02 21:06:54,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-02 21:06:54,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2022-11-02 21:06:54,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 1617 transitions. [2022-11-02 21:06:54,020 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5814455231930961 [2022-11-02 21:06:54,021 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 1617 transitions. [2022-11-02 21:06:54,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 1617 transitions. [2022-11-02 21:06:54,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:06:54,022 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 1617 transitions. [2022-11-02 21:06:54,026 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 59.888888888888886) internal successors, (1617), 27 states have internal predecessors, (1617), 0 states have call successors, (0), 0 states 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 21:06:54,032 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 103.0) internal successors, (2884), 28 states have internal predecessors, (2884), 0 states have call successors, (0), 0 states 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 21:06:54,033 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 103.0) internal successors, (2884), 28 states have internal predecessors, (2884), 0 states have call successors, (0), 0 states 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 21:06:54,034 INFO L175 Difference]: Start difference. First operand has 266 places, 439 transitions, 5393 flow. Second operand 27 states and 1617 transitions. [2022-11-02 21:06:54,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 742 transitions, 10223 flow [2022-11-02 21:06:54,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 742 transitions, 10055 flow, removed 49 selfloop flow, removed 3 redundant places. [2022-11-02 21:06:54,379 INFO L231 Difference]: Finished difference. Result has 300 places, 539 transitions, 7615 flow [2022-11-02 21:06:54,379 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=5290, PETRI_DIFFERENCE_MINUEND_PLACES=263, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=439, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=153, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=7615, PETRI_PLACES=300, PETRI_TRANSITIONS=539} [2022-11-02 21:06:54,380 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 198 predicate places. [2022-11-02 21:06:54,380 INFO L495 AbstractCegarLoop]: Abstraction has has 300 places, 539 transitions, 7615 flow [2022-11-02 21:06:54,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 51.526315789473685) internal successors, (979), 19 states have internal predecessors, (979), 0 states have call successors, (0), 0 states 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 21:06:54,381 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:06:54,381 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:06:54,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-02 21:06:54,381 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 21:06:54,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:06:54,382 INFO L85 PathProgramCache]: Analyzing trace with hash 2005589862, now seen corresponding path program 1 times [2022-11-02 21:06:54,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:06:54,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116891887] [2022-11-02 21:06:54,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:54,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:06:54,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,721 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 21:06:56,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:06:56,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116891887] [2022-11-02 21:06:56,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116891887] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:06:56,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:06:56,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-02 21:06:56,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061942537] [2022-11-02 21:06:56,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:06:56,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 21:06:56,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:06:56,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 21:06:56,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:06:56,724 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 103 [2022-11-02 21:06:56,725 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 539 transitions, 7615 flow. Second operand has 12 states, 12 states have (on average 62.0) internal successors, (744), 12 states have internal predecessors, (744), 0 states have call successors, (0), 0 states 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 21:06:56,726 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:06:56,726 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 103 [2022-11-02 21:06:56,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:06:59,324 INFO L130 PetriNetUnfolder]: 1232/3687 cut-off events. [2022-11-02 21:06:59,324 INFO L131 PetriNetUnfolder]: For 31789/31816 co-relation queries the response was YES. [2022-11-02 21:06:59,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19878 conditions, 3687 events. 1232/3687 cut-off events. For 31789/31816 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 30230 event pairs, 113 based on Foata normal form. 15/3686 useless extension candidates. Maximal degree in co-relation 19795. Up to 1023 conditions per place. [2022-11-02 21:06:59,386 INFO L137 encePairwiseOnDemand]: 85/103 looper letters, 587 selfloop transitions, 151 changer transitions 31/868 dead transitions. [2022-11-02 21:06:59,386 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 868 transitions, 12538 flow [2022-11-02 21:06:59,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-02 21:06:59,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-02 21:06:59,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1363 transitions. [2022-11-02 21:06:59,390 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6964741951967297 [2022-11-02 21:06:59,390 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1363 transitions. [2022-11-02 21:06:59,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1363 transitions. [2022-11-02 21:06:59,391 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:06:59,392 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1363 transitions. [2022-11-02 21:06:59,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 71.73684210526316) internal successors, (1363), 19 states have internal predecessors, (1363), 0 states have call successors, (0), 0 states 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 21:06:59,398 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 103.0) internal successors, (2060), 20 states have internal predecessors, (2060), 0 states have call successors, (0), 0 states 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 21:06:59,399 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 103.0) internal successors, (2060), 20 states have internal predecessors, (2060), 0 states have call successors, (0), 0 states 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 21:06:59,400 INFO L175 Difference]: Start difference. First operand has 300 places, 539 transitions, 7615 flow. Second operand 19 states and 1363 transitions. [2022-11-02 21:06:59,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 868 transitions, 12538 flow [2022-11-02 21:06:59,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 868 transitions, 12170 flow, removed 101 selfloop flow, removed 5 redundant places. [2022-11-02 21:06:59,820 INFO L231 Difference]: Finished difference. Result has 326 places, 600 transitions, 8717 flow [2022-11-02 21:06:59,821 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=7337, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=539, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=8717, PETRI_PLACES=326, PETRI_TRANSITIONS=600} [2022-11-02 21:06:59,821 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 224 predicate places. [2022-11-02 21:06:59,821 INFO L495 AbstractCegarLoop]: Abstraction has has 326 places, 600 transitions, 8717 flow [2022-11-02 21:06:59,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 62.0) internal successors, (744), 12 states have internal predecessors, (744), 0 states have call successors, (0), 0 states 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 21:06:59,822 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:06:59,822 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:06:59,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-02 21:06:59,823 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 21:06:59,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:06:59,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1338495224, now seen corresponding path program 8 times [2022-11-02 21:06:59,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:06:59,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564246200] [2022-11-02 21:06:59,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:59,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:06:59,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:07:00,809 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 21:07:00,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:07:00,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564246200] [2022-11-02 21:07:00,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564246200] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:07:00,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:07:00,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:07:00,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648553790] [2022-11-02 21:07:00,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:07:00,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:07:00,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:07:00,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:07:00,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:07:00,812 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2022-11-02 21:07:00,813 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 600 transitions, 8717 flow. Second operand has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states 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 21:07:00,813 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:07:00,813 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2022-11-02 21:07:00,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:07:03,229 INFO L130 PetriNetUnfolder]: 1326/3807 cut-off events. [2022-11-02 21:07:03,229 INFO L131 PetriNetUnfolder]: For 36791/36819 co-relation queries the response was YES. [2022-11-02 21:07:03,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21544 conditions, 3807 events. 1326/3807 cut-off events. For 36791/36819 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 30838 event pairs, 240 based on Foata normal form. 11/3798 useless extension candidates. Maximal degree in co-relation 21449. Up to 1950 conditions per place. [2022-11-02 21:07:03,303 INFO L137 encePairwiseOnDemand]: 83/103 looper letters, 305 selfloop transitions, 271 changer transitions 20/687 dead transitions. [2022-11-02 21:07:03,303 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 338 places, 687 transitions, 11018 flow [2022-11-02 21:07:03,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-02 21:07:03,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-02 21:07:03,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 954 transitions. [2022-11-02 21:07:03,309 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6615811373092927 [2022-11-02 21:07:03,310 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 954 transitions. [2022-11-02 21:07:03,310 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 954 transitions. [2022-11-02 21:07:03,311 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:07:03,311 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 954 transitions. [2022-11-02 21:07:03,313 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 68.14285714285714) internal successors, (954), 14 states have internal predecessors, (954), 0 states have call successors, (0), 0 states 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 21:07:03,316 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 103.0) internal successors, (1545), 15 states have internal predecessors, (1545), 0 states have call successors, (0), 0 states 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 21:07:03,317 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 103.0) internal successors, (1545), 15 states have internal predecessors, (1545), 0 states have call successors, (0), 0 states 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 21:07:03,317 INFO L175 Difference]: Start difference. First operand has 326 places, 600 transitions, 8717 flow. Second operand 14 states and 954 transitions. [2022-11-02 21:07:03,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 338 places, 687 transitions, 11018 flow [2022-11-02 21:07:03,753 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 687 transitions, 10758 flow, removed 12 selfloop flow, removed 2 redundant places. [2022-11-02 21:07:03,767 INFO L231 Difference]: Finished difference. Result has 344 places, 626 transitions, 9803 flow [2022-11-02 21:07:03,768 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=8473, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=600, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=248, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=9803, PETRI_PLACES=344, PETRI_TRANSITIONS=626} [2022-11-02 21:07:03,768 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 242 predicate places. [2022-11-02 21:07:03,769 INFO L495 AbstractCegarLoop]: Abstraction has has 344 places, 626 transitions, 9803 flow [2022-11-02 21:07:03,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states 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 21:07:03,769 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:07:03,770 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:07:03,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-02 21:07:03,770 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 21:07:03,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:07:03,771 INFO L85 PathProgramCache]: Analyzing trace with hash -257739324, now seen corresponding path program 2 times [2022-11-02 21:07:03,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:07:03,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214627732] [2022-11-02 21:07:03,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:07:03,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:07:03,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:07:04,690 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 21:07:04,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:07:04,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214627732] [2022-11-02 21:07:04,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214627732] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:07:04,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:07:04,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:07:04,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555931604] [2022-11-02 21:07:04,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:07:04,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:07:04,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:07:04,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:07:04,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:07:04,693 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 103 [2022-11-02 21:07:04,694 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 626 transitions, 9803 flow. Second operand has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 21:07:04,694 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:07:04,694 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 103 [2022-11-02 21:07:04,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:07:07,183 INFO L130 PetriNetUnfolder]: 1220/3663 cut-off events. [2022-11-02 21:07:07,183 INFO L131 PetriNetUnfolder]: For 40344/40371 co-relation queries the response was YES. [2022-11-02 21:07:07,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21587 conditions, 3663 events. 1220/3663 cut-off events. For 40344/40371 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 29928 event pairs, 117 based on Foata normal form. 15/3660 useless extension candidates. Maximal degree in co-relation 21483. Up to 1023 conditions per place. [2022-11-02 21:07:07,244 INFO L137 encePairwiseOnDemand]: 87/103 looper letters, 573 selfloop transitions, 148 changer transitions 31/852 dead transitions. [2022-11-02 21:07:07,244 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 852 transitions, 13570 flow [2022-11-02 21:07:07,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-02 21:07:07,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-02 21:07:07,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1159 transitions. [2022-11-02 21:07:07,247 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7032766990291263 [2022-11-02 21:07:07,247 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1159 transitions. [2022-11-02 21:07:07,248 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1159 transitions. [2022-11-02 21:07:07,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:07:07,248 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1159 transitions. [2022-11-02 21:07:07,251 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 72.4375) internal successors, (1159), 16 states have internal predecessors, (1159), 0 states have call successors, (0), 0 states 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 21:07:07,254 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 103.0) internal successors, (1751), 17 states have internal predecessors, (1751), 0 states have call successors, (0), 0 states 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 21:07:07,255 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 103.0) internal successors, (1751), 17 states have internal predecessors, (1751), 0 states have call successors, (0), 0 states 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 21:07:07,255 INFO L175 Difference]: Start difference. First operand has 344 places, 626 transitions, 9803 flow. Second operand 16 states and 1159 transitions. [2022-11-02 21:07:07,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 852 transitions, 13570 flow [2022-11-02 21:07:07,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 852 transitions, 13286 flow, removed 129 selfloop flow, removed 2 redundant places. [2022-11-02 21:07:07,663 INFO L231 Difference]: Finished difference. Result has 362 places, 649 transitions, 10378 flow [2022-11-02 21:07:07,664 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=9564, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=626, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=126, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=483, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=10378, PETRI_PLACES=362, PETRI_TRANSITIONS=649} [2022-11-02 21:07:07,664 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 260 predicate places. [2022-11-02 21:07:07,665 INFO L495 AbstractCegarLoop]: Abstraction has has 362 places, 649 transitions, 10378 flow [2022-11-02 21:07:07,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 21:07:07,665 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:07:07,666 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:07:07,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-02 21:07:07,666 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 21:07:07,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:07:07,667 INFO L85 PathProgramCache]: Analyzing trace with hash 585973046, now seen corresponding path program 9 times [2022-11-02 21:07:07,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:07:07,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713055515] [2022-11-02 21:07:07,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:07:07,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:07:07,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:07:08,636 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 21:07:08,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:07:08,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713055515] [2022-11-02 21:07:08,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713055515] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:07:08,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:07:08,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:07:08,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971590276] [2022-11-02 21:07:08,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:07:08,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:07:08,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:07:08,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:07:08,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:07:08,639 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2022-11-02 21:07:08,640 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 362 places, 649 transitions, 10378 flow. Second operand has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states 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 21:07:08,640 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:07:08,640 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2022-11-02 21:07:08,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:07:11,068 INFO L130 PetriNetUnfolder]: 1322/3777 cut-off events. [2022-11-02 21:07:11,069 INFO L131 PetriNetUnfolder]: For 44284/44313 co-relation queries the response was YES. [2022-11-02 21:07:11,121 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22841 conditions, 3777 events. 1322/3777 cut-off events. For 44284/44313 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 30400 event pairs, 160 based on Foata normal form. 12/3767 useless extension candidates. Maximal degree in co-relation 22733. Up to 1130 conditions per place. [2022-11-02 21:07:11,134 INFO L137 encePairwiseOnDemand]: 82/103 looper letters, 497 selfloop transitions, 207 changer transitions 24/819 dead transitions. [2022-11-02 21:07:11,134 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 368 places, 819 transitions, 13380 flow [2022-11-02 21:07:11,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 21:07:11,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-02 21:07:11,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 840 transitions. [2022-11-02 21:07:11,137 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7413945278022948 [2022-11-02 21:07:11,137 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 840 transitions. [2022-11-02 21:07:11,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 840 transitions. [2022-11-02 21:07:11,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:07:11,138 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 840 transitions. [2022-11-02 21:07:11,140 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 76.36363636363636) internal successors, (840), 11 states have internal predecessors, (840), 0 states have call successors, (0), 0 states 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 21:07:11,142 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 21:07:11,143 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 21:07:11,143 INFO L175 Difference]: Start difference. First operand has 362 places, 649 transitions, 10378 flow. Second operand 11 states and 840 transitions. [2022-11-02 21:07:11,143 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 368 places, 819 transitions, 13380 flow [2022-11-02 21:07:11,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 819 transitions, 13243 flow, removed 27 selfloop flow, removed 5 redundant places. [2022-11-02 21:07:11,593 INFO L231 Difference]: Finished difference. Result has 368 places, 662 transitions, 11107 flow [2022-11-02 21:07:11,594 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=10258, PETRI_DIFFERENCE_MINUEND_PLACES=353, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=649, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=194, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=447, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=11107, PETRI_PLACES=368, PETRI_TRANSITIONS=662} [2022-11-02 21:07:11,595 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 266 predicate places. [2022-11-02 21:07:11,595 INFO L495 AbstractCegarLoop]: Abstraction has has 368 places, 662 transitions, 11107 flow [2022-11-02 21:07:11,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states 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 21:07:11,596 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:07:11,596 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:07:11,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-02 21:07:11,596 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 21:07:11,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:07:11,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1435410196, now seen corresponding path program 10 times [2022-11-02 21:07:11,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:07:11,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842081890] [2022-11-02 21:07:11,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:07:11,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:07:11,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:07:12,449 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 21:07:12,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:07:12,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842081890] [2022-11-02 21:07:12,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842081890] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:07:12,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:07:12,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:07:12,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638486924] [2022-11-02 21:07:12,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:07:12,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:07:12,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:07:12,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:07:12,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:07:12,452 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2022-11-02 21:07:12,453 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 368 places, 662 transitions, 11107 flow. Second operand has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states 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 21:07:12,453 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:07:12,453 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2022-11-02 21:07:12,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:07:14,785 INFO L130 PetriNetUnfolder]: 1325/3791 cut-off events. [2022-11-02 21:07:14,785 INFO L131 PetriNetUnfolder]: For 49855/49884 co-relation queries the response was YES. [2022-11-02 21:07:14,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23857 conditions, 3791 events. 1325/3791 cut-off events. For 49855/49884 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 30569 event pairs, 163 based on Foata normal form. 13/3782 useless extension candidates. Maximal degree in co-relation 23744. Up to 1130 conditions per place. [2022-11-02 21:07:14,902 INFO L137 encePairwiseOnDemand]: 85/103 looper letters, 514 selfloop transitions, 195 changer transitions 20/820 dead transitions. [2022-11-02 21:07:14,902 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 820 transitions, 14110 flow [2022-11-02 21:07:14,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 21:07:14,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-02 21:07:14,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 817 transitions. [2022-11-02 21:07:14,905 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7210944395410415 [2022-11-02 21:07:14,905 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 817 transitions. [2022-11-02 21:07:14,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 817 transitions. [2022-11-02 21:07:14,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:07:14,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 817 transitions. [2022-11-02 21:07:14,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 74.27272727272727) internal successors, (817), 11 states have internal predecessors, (817), 0 states have call successors, (0), 0 states 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 21:07:14,909 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 21:07:14,910 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 21:07:14,910 INFO L175 Difference]: Start difference. First operand has 368 places, 662 transitions, 11107 flow. Second operand 11 states and 817 transitions. [2022-11-02 21:07:14,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 820 transitions, 14110 flow [2022-11-02 21:07:15,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 373 places, 820 transitions, 13817 flow, removed 40 selfloop flow, removed 5 redundant places. [2022-11-02 21:07:15,428 INFO L231 Difference]: Finished difference. Result has 377 places, 673 transitions, 11609 flow [2022-11-02 21:07:15,429 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=10852, PETRI_DIFFERENCE_MINUEND_PLACES=363, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=662, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=184, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=473, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=11609, PETRI_PLACES=377, PETRI_TRANSITIONS=673} [2022-11-02 21:07:15,430 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 275 predicate places. [2022-11-02 21:07:15,430 INFO L495 AbstractCegarLoop]: Abstraction has has 377 places, 673 transitions, 11609 flow [2022-11-02 21:07:15,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states 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 21:07:15,431 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:07:15,431 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:07:15,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-02 21:07:15,431 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 21:07:15,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:07:15,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1791502216, now seen corresponding path program 11 times [2022-11-02 21:07:15,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:07:15,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005783450] [2022-11-02 21:07:15,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:07:15,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:07:15,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:07:16,324 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 21:07:16,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:07:16,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005783450] [2022-11-02 21:07:16,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005783450] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:07:16,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:07:16,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:07:16,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271248680] [2022-11-02 21:07:16,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:07:16,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:07:16,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:07:16,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:07:16,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:07:16,327 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2022-11-02 21:07:16,327 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 377 places, 673 transitions, 11609 flow. Second operand has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states 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 21:07:16,328 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:07:16,328 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2022-11-02 21:07:16,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:07:18,803 INFO L130 PetriNetUnfolder]: 1325/3795 cut-off events. [2022-11-02 21:07:18,803 INFO L131 PetriNetUnfolder]: For 52156/52185 co-relation queries the response was YES. [2022-11-02 21:07:18,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24185 conditions, 3795 events. 1325/3795 cut-off events. For 52156/52185 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 30622 event pairs, 160 based on Foata normal form. 13/3786 useless extension candidates. Maximal degree in co-relation 24069. Up to 1130 conditions per place. [2022-11-02 21:07:18,871 INFO L137 encePairwiseOnDemand]: 85/103 looper letters, 509 selfloop transitions, 206 changer transitions 21/827 dead transitions. [2022-11-02 21:07:18,871 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 387 places, 827 transitions, 14445 flow [2022-11-02 21:07:18,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 21:07:18,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-02 21:07:18,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 825 transitions. [2022-11-02 21:07:18,879 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7281553398058253 [2022-11-02 21:07:18,880 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 825 transitions. [2022-11-02 21:07:18,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 825 transitions. [2022-11-02 21:07:18,882 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:07:18,883 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 825 transitions. [2022-11-02 21:07:18,890 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 75.0) internal successors, (825), 11 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:18,892 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 21:07:18,892 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 21:07:18,893 INFO L175 Difference]: Start difference. First operand has 377 places, 673 transitions, 11609 flow. Second operand 11 states and 825 transitions. [2022-11-02 21:07:18,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 387 places, 827 transitions, 14445 flow [2022-11-02 21:07:19,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 382 places, 827 transitions, 14151 flow, removed 16 selfloop flow, removed 5 redundant places. [2022-11-02 21:07:19,652 INFO L231 Difference]: Finished difference. Result has 385 places, 678 transitions, 11950 flow [2022-11-02 21:07:19,653 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=11318, PETRI_DIFFERENCE_MINUEND_PLACES=372, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=673, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=201, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=470, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=11950, PETRI_PLACES=385, PETRI_TRANSITIONS=678} [2022-11-02 21:07:19,653 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 283 predicate places. [2022-11-02 21:07:19,658 INFO L495 AbstractCegarLoop]: Abstraction has has 385 places, 678 transitions, 11950 flow [2022-11-02 21:07:19,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states 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 21:07:19,659 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:07:19,659 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:07:19,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-02 21:07:19,660 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 21:07:19,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:07:19,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1390279132, now seen corresponding path program 12 times [2022-11-02 21:07:19,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:07:19,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017155672] [2022-11-02 21:07:19,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:07:19,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:07:19,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:07:20,422 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 21:07:20,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:07:20,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017155672] [2022-11-02 21:07:20,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017155672] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:07:20,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:07:20,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:07:20,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979882108] [2022-11-02 21:07:20,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:07:20,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:07:20,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:07:20,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:07:20,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:07:20,425 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2022-11-02 21:07:20,425 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 385 places, 678 transitions, 11950 flow. Second operand has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states 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 21:07:20,426 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:07:20,426 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2022-11-02 21:07:20,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:07:22,662 INFO L130 PetriNetUnfolder]: 1331/3812 cut-off events. [2022-11-02 21:07:22,662 INFO L131 PetriNetUnfolder]: For 54955/54983 co-relation queries the response was YES. [2022-11-02 21:07:22,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24616 conditions, 3812 events. 1331/3812 cut-off events. For 54955/54983 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 30812 event pairs, 215 based on Foata normal form. 12/3802 useless extension candidates. Maximal degree in co-relation 24497. Up to 1974 conditions per place. [2022-11-02 21:07:22,735 INFO L137 encePairwiseOnDemand]: 83/103 looper letters, 358 selfloop transitions, 285 changer transitions 18/752 dead transitions. [2022-11-02 21:07:22,735 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 394 places, 752 transitions, 14056 flow [2022-11-02 21:07:22,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 21:07:22,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-02 21:07:22,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 720 transitions. [2022-11-02 21:07:22,738 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6990291262135923 [2022-11-02 21:07:22,738 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 720 transitions. [2022-11-02 21:07:22,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 720 transitions. [2022-11-02 21:07:22,739 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:07:22,739 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 720 transitions. [2022-11-02 21:07:22,740 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 72.0) internal successors, (720), 10 states have internal predecessors, (720), 0 states have call successors, (0), 0 states 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 21:07:22,742 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 103.0) internal successors, (1133), 11 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states 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 21:07:22,743 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 103.0) internal successors, (1133), 11 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states 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 21:07:22,743 INFO L175 Difference]: Start difference. First operand has 385 places, 678 transitions, 11950 flow. Second operand 10 states and 720 transitions. [2022-11-02 21:07:22,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 394 places, 752 transitions, 14056 flow [2022-11-02 21:07:23,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 388 places, 752 transitions, 13732 flow, removed 9 selfloop flow, removed 6 redundant places. [2022-11-02 21:07:23,587 INFO L231 Difference]: Finished difference. Result has 392 places, 686 transitions, 12397 flow [2022-11-02 21:07:23,588 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=11627, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=678, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=277, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=396, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=12397, PETRI_PLACES=392, PETRI_TRANSITIONS=686} [2022-11-02 21:07:23,589 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 290 predicate places. [2022-11-02 21:07:23,589 INFO L495 AbstractCegarLoop]: Abstraction has has 392 places, 686 transitions, 12397 flow [2022-11-02 21:07:23,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states 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 21:07:23,590 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:07:23,590 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:07:23,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-02 21:07:23,590 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 21:07:23,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:07:23,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1932568352, now seen corresponding path program 13 times [2022-11-02 21:07:23,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:07:23,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268832269] [2022-11-02 21:07:23,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:07:23,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:07:23,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:07:24,385 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 21:07:24,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:07:24,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268832269] [2022-11-02 21:07:24,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268832269] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:07:24,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:07:24,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:07:24,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854886607] [2022-11-02 21:07:24,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:07:24,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:07:24,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:07:24,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:07:24,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:07:24,387 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2022-11-02 21:07:24,388 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 686 transitions, 12397 flow. Second operand has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states 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 21:07:24,388 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:07:24,388 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2022-11-02 21:07:24,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:07:27,253 INFO L130 PetriNetUnfolder]: 1331/3816 cut-off events. [2022-11-02 21:07:27,254 INFO L131 PetriNetUnfolder]: For 58306/58334 co-relation queries the response was YES. [2022-11-02 21:07:27,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24980 conditions, 3816 events. 1331/3816 cut-off events. For 58306/58334 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 30922 event pairs, 214 based on Foata normal form. 12/3806 useless extension candidates. Maximal degree in co-relation 24857. Up to 1976 conditions per place. [2022-11-02 21:07:27,333 INFO L137 encePairwiseOnDemand]: 83/103 looper letters, 353 selfloop transitions, 295 changer transitions 18/757 dead transitions. [2022-11-02 21:07:27,333 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 404 places, 757 transitions, 14507 flow [2022-11-02 21:07:27,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 21:07:27,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-02 21:07:27,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 906 transitions. [2022-11-02 21:07:27,335 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6766243465272591 [2022-11-02 21:07:27,335 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 906 transitions. [2022-11-02 21:07:27,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 906 transitions. [2022-11-02 21:07:27,336 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:07:27,336 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 906 transitions. [2022-11-02 21:07:27,338 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 69.6923076923077) internal successors, (906), 13 states have internal predecessors, (906), 0 states have call successors, (0), 0 states 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 21:07:27,340 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 103.0) internal successors, (1442), 14 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 21:07:27,340 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 103.0) internal successors, (1442), 14 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 21:07:27,340 INFO L175 Difference]: Start difference. First operand has 392 places, 686 transitions, 12397 flow. Second operand 13 states and 906 transitions. [2022-11-02 21:07:27,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 404 places, 757 transitions, 14507 flow [2022-11-02 21:07:28,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 399 places, 757 transitions, 13963 flow, removed 8 selfloop flow, removed 5 redundant places. [2022-11-02 21:07:28,035 INFO L231 Difference]: Finished difference. Result has 402 places, 693 transitions, 12680 flow [2022-11-02 21:07:28,036 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=11860, PETRI_DIFFERENCE_MINUEND_PLACES=387, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=686, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=288, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=12680, PETRI_PLACES=402, PETRI_TRANSITIONS=693} [2022-11-02 21:07:28,037 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 300 predicate places. [2022-11-02 21:07:28,037 INFO L495 AbstractCegarLoop]: Abstraction has has 402 places, 693 transitions, 12680 flow [2022-11-02 21:07:28,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states 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 21:07:28,037 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:07:28,037 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:07:28,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-02 21:07:28,038 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 21:07:28,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:07:28,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1541547564, now seen corresponding path program 14 times [2022-11-02 21:07:28,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:07:28,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955838975] [2022-11-02 21:07:28,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:07:28,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:07:28,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:07:28,797 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 21:07:28,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:07:28,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955838975] [2022-11-02 21:07:28,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955838975] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:07:28,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:07:28,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:07:28,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593893818] [2022-11-02 21:07:28,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:07:28,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:07:28,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:07:28,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:07:28,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:07:28,800 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2022-11-02 21:07:28,801 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 402 places, 693 transitions, 12680 flow. Second operand has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states 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 21:07:28,801 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:07:28,801 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2022-11-02 21:07:28,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:07:31,146 INFO L130 PetriNetUnfolder]: 1340/3823 cut-off events. [2022-11-02 21:07:31,146 INFO L131 PetriNetUnfolder]: For 60137/60165 co-relation queries the response was YES. [2022-11-02 21:07:31,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25254 conditions, 3823 events. 1340/3823 cut-off events. For 60137/60165 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 30898 event pairs, 239 based on Foata normal form. 12/3809 useless extension candidates. Maximal degree in co-relation 25128. Up to 1969 conditions per place. [2022-11-02 21:07:31,254 INFO L137 encePairwiseOnDemand]: 83/103 looper letters, 374 selfloop transitions, 285 changer transitions 17/767 dead transitions. [2022-11-02 21:07:31,254 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 411 places, 767 transitions, 14830 flow [2022-11-02 21:07:31,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 21:07:31,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-02 21:07:31,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 710 transitions. [2022-11-02 21:07:31,256 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6893203883495146 [2022-11-02 21:07:31,256 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 710 transitions. [2022-11-02 21:07:31,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 710 transitions. [2022-11-02 21:07:31,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:07:31,257 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 710 transitions. [2022-11-02 21:07:31,258 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 71.0) internal successors, (710), 10 states have internal predecessors, (710), 0 states have call successors, (0), 0 states 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 21:07:31,260 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 103.0) internal successors, (1133), 11 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states 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 21:07:31,260 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 103.0) internal successors, (1133), 11 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states 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 21:07:31,260 INFO L175 Difference]: Start difference. First operand has 402 places, 693 transitions, 12680 flow. Second operand 10 states and 710 transitions. [2022-11-02 21:07:31,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 411 places, 767 transitions, 14830 flow [2022-11-02 21:07:32,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 767 transitions, 14265 flow, removed 7 selfloop flow, removed 6 redundant places. [2022-11-02 21:07:32,070 INFO L231 Difference]: Finished difference. Result has 410 places, 706 transitions, 12990 flow [2022-11-02 21:07:32,071 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=12125, PETRI_DIFFERENCE_MINUEND_PLACES=396, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=693, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=272, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=413, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=12990, PETRI_PLACES=410, PETRI_TRANSITIONS=706} [2022-11-02 21:07:32,071 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 308 predicate places. [2022-11-02 21:07:32,071 INFO L495 AbstractCegarLoop]: Abstraction has has 410 places, 706 transitions, 12990 flow [2022-11-02 21:07:32,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states 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 21:07:32,071 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:07:32,072 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:07:32,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-02 21:07:32,072 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 21:07:32,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:07:32,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1275084978, now seen corresponding path program 15 times [2022-11-02 21:07:32,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:07:32,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105397725] [2022-11-02 21:07:32,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:07:32,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:07:32,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:07:32,896 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 21:07:32,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:07:32,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105397725] [2022-11-02 21:07:32,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105397725] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:07:32,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:07:32,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:07:32,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392487576] [2022-11-02 21:07:32,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:07:32,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:07:32,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:07:32,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:07:32,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:07:32,900 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2022-11-02 21:07:32,901 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 410 places, 706 transitions, 12990 flow. Second operand has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states 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 21:07:32,901 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:07:32,901 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2022-11-02 21:07:32,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:07:35,666 INFO L130 PetriNetUnfolder]: 1347/3843 cut-off events. [2022-11-02 21:07:35,666 INFO L131 PetriNetUnfolder]: For 62472/62500 co-relation queries the response was YES. [2022-11-02 21:07:35,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25586 conditions, 3843 events. 1347/3843 cut-off events. For 62472/62500 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 31078 event pairs, 238 based on Foata normal form. 12/3829 useless extension candidates. Maximal degree in co-relation 25455. Up to 1976 conditions per place. [2022-11-02 21:07:35,756 INFO L137 encePairwiseOnDemand]: 83/103 looper letters, 364 selfloop transitions, 305 changer transitions 17/777 dead transitions. [2022-11-02 21:07:35,756 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 777 transitions, 15218 flow [2022-11-02 21:07:35,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-02 21:07:35,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-02 21:07:35,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 957 transitions. [2022-11-02 21:07:35,758 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6636615811373093 [2022-11-02 21:07:35,758 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 957 transitions. [2022-11-02 21:07:35,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 957 transitions. [2022-11-02 21:07:35,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:07:35,759 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 957 transitions. [2022-11-02 21:07:35,760 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 68.35714285714286) internal successors, (957), 14 states have internal predecessors, (957), 0 states have call successors, (0), 0 states 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 21:07:35,761 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 103.0) internal successors, (1545), 15 states have internal predecessors, (1545), 0 states have call successors, (0), 0 states 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 21:07:35,761 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 103.0) internal successors, (1545), 15 states have internal predecessors, (1545), 0 states have call successors, (0), 0 states 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 21:07:35,761 INFO L175 Difference]: Start difference. First operand has 410 places, 706 transitions, 12990 flow. Second operand 14 states and 957 transitions. [2022-11-02 21:07:35,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 777 transitions, 15218 flow [2022-11-02 21:07:36,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 777 transitions, 14711 flow, removed 6 selfloop flow, removed 4 redundant places. [2022-11-02 21:07:36,530 INFO L231 Difference]: Finished difference. Result has 424 places, 718 transitions, 13466 flow [2022-11-02 21:07:36,531 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=12493, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=706, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=293, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=13466, PETRI_PLACES=424, PETRI_TRANSITIONS=718} [2022-11-02 21:07:36,532 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 322 predicate places. [2022-11-02 21:07:36,532 INFO L495 AbstractCegarLoop]: Abstraction has has 424 places, 718 transitions, 13466 flow [2022-11-02 21:07:36,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states 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 21:07:36,533 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:07:36,533 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:07:36,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-02 21:07:36,533 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 21:07:36,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:07:36,534 INFO L85 PathProgramCache]: Analyzing trace with hash -514006304, now seen corresponding path program 16 times [2022-11-02 21:07:36,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:07:36,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726982804] [2022-11-02 21:07:36,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:07:36,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:07:36,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:07:37,256 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 21:07:37,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:07:37,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726982804] [2022-11-02 21:07:37,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726982804] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:07:37,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:07:37,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:07:37,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489556090] [2022-11-02 21:07:37,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:07:37,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:07:37,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:07:37,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:07:37,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:07:37,259 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2022-11-02 21:07:37,259 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 718 transitions, 13466 flow. Second operand has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states 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 21:07:37,260 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:07:37,260 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2022-11-02 21:07:37,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:07:39,850 INFO L130 PetriNetUnfolder]: 1346/3844 cut-off events. [2022-11-02 21:07:39,851 INFO L131 PetriNetUnfolder]: For 63225/63259 co-relation queries the response was YES. [2022-11-02 21:07:39,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25699 conditions, 3844 events. 1346/3844 cut-off events. For 63225/63259 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 31154 event pairs, 255 based on Foata normal form. 18/3838 useless extension candidates. Maximal degree in co-relation 25563. Up to 2005 conditions per place. [2022-11-02 21:07:39,945 INFO L137 encePairwiseOnDemand]: 83/103 looper letters, 368 selfloop transitions, 314 changer transitions 17/790 dead transitions. [2022-11-02 21:07:39,945 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 434 places, 790 transitions, 15520 flow [2022-11-02 21:07:39,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 21:07:39,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-02 21:07:39,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 792 transitions. [2022-11-02 21:07:39,947 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6990291262135923 [2022-11-02 21:07:39,947 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 792 transitions. [2022-11-02 21:07:39,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 792 transitions. [2022-11-02 21:07:39,947 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:07:39,947 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 792 transitions. [2022-11-02 21:07:39,949 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 72.0) internal successors, (792), 11 states have internal predecessors, (792), 0 states have call successors, (0), 0 states 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 21:07:39,950 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 21:07:39,951 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 21:07:39,951 INFO L175 Difference]: Start difference. First operand has 424 places, 718 transitions, 13466 flow. Second operand 11 states and 792 transitions. [2022-11-02 21:07:39,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 434 places, 790 transitions, 15520 flow [2022-11-02 21:07:40,700 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 790 transitions, 14941 flow, removed 11 selfloop flow, removed 9 redundant places. [2022-11-02 21:07:40,720 INFO L231 Difference]: Finished difference. Result has 427 places, 720 transitions, 13575 flow [2022-11-02 21:07:40,721 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=12889, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=718, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=312, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=405, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=13575, PETRI_PLACES=427, PETRI_TRANSITIONS=720} [2022-11-02 21:07:40,721 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 325 predicate places. [2022-11-02 21:07:40,721 INFO L495 AbstractCegarLoop]: Abstraction has has 427 places, 720 transitions, 13575 flow [2022-11-02 21:07:40,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states 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 21:07:40,722 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:07:40,722 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:07:40,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-02 21:07:40,722 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 21:07:40,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:07:40,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1774891774, now seen corresponding path program 17 times [2022-11-02 21:07:40,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:07:40,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170398950] [2022-11-02 21:07:40,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:07:40,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:07:40,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:07:41,437 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 21:07:41,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:07:41,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170398950] [2022-11-02 21:07:41,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170398950] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:07:41,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:07:41,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:07:41,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109530787] [2022-11-02 21:07:41,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:07:41,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:07:41,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:07:41,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:07:41,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:07:41,440 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2022-11-02 21:07:41,440 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 427 places, 720 transitions, 13575 flow. Second operand has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states 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 21:07:41,440 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:07:41,440 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2022-11-02 21:07:41,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:07:44,063 INFO L130 PetriNetUnfolder]: 1345/3843 cut-off events. [2022-11-02 21:07:44,064 INFO L131 PetriNetUnfolder]: For 64061/64089 co-relation queries the response was YES. [2022-11-02 21:07:44,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25872 conditions, 3843 events. 1345/3843 cut-off events. For 64061/64089 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 31136 event pairs, 239 based on Foata normal form. 12/3829 useless extension candidates. Maximal degree in co-relation 25735. Up to 1976 conditions per place. [2022-11-02 21:07:44,143 INFO L137 encePairwiseOnDemand]: 83/103 looper letters, 371 selfloop transitions, 305 changer transitions 17/784 dead transitions. [2022-11-02 21:07:44,143 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 439 places, 784 transitions, 15692 flow [2022-11-02 21:07:44,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 21:07:44,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-02 21:07:44,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 896 transitions. [2022-11-02 21:07:44,145 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6691560866318148 [2022-11-02 21:07:44,145 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 896 transitions. [2022-11-02 21:07:44,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 896 transitions. [2022-11-02 21:07:44,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:07:44,146 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 896 transitions. [2022-11-02 21:07:44,147 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 68.92307692307692) internal successors, (896), 13 states have internal predecessors, (896), 0 states have call successors, (0), 0 states 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 21:07:44,149 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 103.0) internal successors, (1442), 14 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 21:07:44,149 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 103.0) internal successors, (1442), 14 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 21:07:44,149 INFO L175 Difference]: Start difference. First operand has 427 places, 720 transitions, 13575 flow. Second operand 13 states and 896 transitions. [2022-11-02 21:07:44,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 439 places, 784 transitions, 15692 flow [2022-11-02 21:07:44,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 784 transitions, 15052 flow, removed 7 selfloop flow, removed 7 redundant places. [2022-11-02 21:07:44,985 INFO L231 Difference]: Finished difference. Result has 436 places, 729 transitions, 13872 flow [2022-11-02 21:07:44,986 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=12953, PETRI_DIFFERENCE_MINUEND_PLACES=420, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=720, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=296, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=418, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=13872, PETRI_PLACES=436, PETRI_TRANSITIONS=729} [2022-11-02 21:07:44,987 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 334 predicate places. [2022-11-02 21:07:44,987 INFO L495 AbstractCegarLoop]: Abstraction has has 436 places, 729 transitions, 13872 flow [2022-11-02 21:07:44,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states 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 21:07:44,987 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:07:44,987 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:07:44,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-02 21:07:44,988 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 21:07:44,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:07:44,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1997002542, now seen corresponding path program 1 times [2022-11-02 21:07:44,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:07:44,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952570011] [2022-11-02 21:07:44,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:07:44,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:07:45,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:07:46,870 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 21:07:46,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:07:46,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952570011] [2022-11-02 21:07:46,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952570011] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:07:46,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:07:46,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:07:46,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213742450] [2022-11-02 21:07:46,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:07:46,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:07:46,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:07:46,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:07:46,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:07:46,873 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 103 [2022-11-02 21:07:46,873 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 729 transitions, 13872 flow. Second operand has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 21:07:46,874 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:07:46,874 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 103 [2022-11-02 21:07:46,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:07:50,042 INFO L130 PetriNetUnfolder]: 1398/4083 cut-off events. [2022-11-02 21:07:50,042 INFO L131 PetriNetUnfolder]: For 70303/70337 co-relation queries the response was YES. [2022-11-02 21:07:50,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27205 conditions, 4083 events. 1398/4083 cut-off events. For 70303/70337 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 33982 event pairs, 146 based on Foata normal form. 21/4090 useless extension candidates. Maximal degree in co-relation 27065. Up to 1089 conditions per place. [2022-11-02 21:07:50,138 INFO L137 encePairwiseOnDemand]: 87/103 looper letters, 771 selfloop transitions, 130 changer transitions 19/1025 dead transitions. [2022-11-02 21:07:50,138 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 447 places, 1025 transitions, 19047 flow [2022-11-02 21:07:50,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 21:07:50,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-02 21:07:50,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 937 transitions. [2022-11-02 21:07:50,140 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7580906148867314 [2022-11-02 21:07:50,140 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 937 transitions. [2022-11-02 21:07:50,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 937 transitions. [2022-11-02 21:07:50,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:07:50,140 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 937 transitions. [2022-11-02 21:07:50,141 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 78.08333333333333) internal successors, (937), 12 states have internal predecessors, (937), 0 states have call successors, (0), 0 states 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 21:07:50,142 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 21:07:50,142 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 21:07:50,143 INFO L175 Difference]: Start difference. First operand has 436 places, 729 transitions, 13872 flow. Second operand 12 states and 937 transitions. [2022-11-02 21:07:50,143 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 447 places, 1025 transitions, 19047 flow [2022-11-02 21:07:50,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 439 places, 1025 transitions, 18399 flow, removed 12 selfloop flow, removed 8 redundant places. [2022-11-02 21:07:50,909 INFO L231 Difference]: Finished difference. Result has 447 places, 803 transitions, 14936 flow [2022-11-02 21:07:50,910 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=13282, PETRI_DIFFERENCE_MINUEND_PLACES=428, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=729, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=635, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=14936, PETRI_PLACES=447, PETRI_TRANSITIONS=803} [2022-11-02 21:07:50,911 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 345 predicate places. [2022-11-02 21:07:50,911 INFO L495 AbstractCegarLoop]: Abstraction has has 447 places, 803 transitions, 14936 flow [2022-11-02 21:07:50,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 21:07:50,911 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:07:50,912 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:07:50,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-02 21:07:50,912 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 21:07:50,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:07:50,912 INFO L85 PathProgramCache]: Analyzing trace with hash -347285014, now seen corresponding path program 2 times [2022-11-02 21:07:50,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:07:50,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038571742] [2022-11-02 21:07:50,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:07:50,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:07:50,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:07:52,371 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 21:07:52,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:07:52,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038571742] [2022-11-02 21:07:52,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038571742] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:07:52,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:07:52,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:07:52,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310088527] [2022-11-02 21:07:52,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:07:52,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:07:52,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:07:52,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:07:52,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:07:52,374 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 103 [2022-11-02 21:07:52,374 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 447 places, 803 transitions, 14936 flow. Second operand has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 21:07:52,374 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:07:52,375 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 103 [2022-11-02 21:07:52,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:07:55,432 INFO L130 PetriNetUnfolder]: 1482/4303 cut-off events. [2022-11-02 21:07:55,432 INFO L131 PetriNetUnfolder]: For 79372/79440 co-relation queries the response was YES. [2022-11-02 21:07:55,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29210 conditions, 4303 events. 1482/4303 cut-off events. For 79372/79440 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 36349 event pairs, 165 based on Foata normal form. 47/4338 useless extension candidates. Maximal degree in co-relation 29064. Up to 2191 conditions per place. [2022-11-02 21:07:55,488 INFO L137 encePairwiseOnDemand]: 87/103 looper letters, 698 selfloop transitions, 154 changer transitions 22/979 dead transitions. [2022-11-02 21:07:55,488 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 979 transitions, 19646 flow [2022-11-02 21:07:55,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 21:07:55,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-02 21:07:55,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 758 transitions. [2022-11-02 21:07:55,490 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7359223300970874 [2022-11-02 21:07:55,490 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 758 transitions. [2022-11-02 21:07:55,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 758 transitions. [2022-11-02 21:07:55,491 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:07:55,491 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 758 transitions. [2022-11-02 21:07:55,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 75.8) internal successors, (758), 10 states have internal predecessors, (758), 0 states have call successors, (0), 0 states 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 21:07:55,494 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 103.0) internal successors, (1133), 11 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states 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 21:07:55,494 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 103.0) internal successors, (1133), 11 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states 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 21:07:55,494 INFO L175 Difference]: Start difference. First operand has 447 places, 803 transitions, 14936 flow. Second operand 10 states and 758 transitions. [2022-11-02 21:07:55,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 979 transitions, 19646 flow [2022-11-02 21:07:56,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 979 transitions, 19359 flow, removed 21 selfloop flow, removed 2 redundant places. [2022-11-02 21:07:56,361 INFO L231 Difference]: Finished difference. Result has 457 places, 846 transitions, 16615 flow [2022-11-02 21:07:56,362 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=14714, PETRI_DIFFERENCE_MINUEND_PLACES=444, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=803, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=111, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=666, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=16615, PETRI_PLACES=457, PETRI_TRANSITIONS=846} [2022-11-02 21:07:56,362 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 355 predicate places. [2022-11-02 21:07:56,363 INFO L495 AbstractCegarLoop]: Abstraction has has 457 places, 846 transitions, 16615 flow [2022-11-02 21:07:56,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 21:07:56,363 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:07:56,363 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:07:56,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-02 21:07:56,363 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 21:07:56,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:07:56,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1765787934, now seen corresponding path program 3 times [2022-11-02 21:07:56,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:07:56,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687890695] [2022-11-02 21:07:56,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:07:56,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:07:56,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:07:57,692 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 21:07:57,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:07:57,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687890695] [2022-11-02 21:07:57,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687890695] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:07:57,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:07:57,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:07:57,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451961593] [2022-11-02 21:07:57,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:07:57,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:07:57,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:07:57,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:07:57,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:07:57,695 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 103 [2022-11-02 21:07:57,695 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 846 transitions, 16615 flow. Second operand has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 21:07:57,695 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:07:57,695 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 103 [2022-11-02 21:07:57,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:08:01,104 INFO L130 PetriNetUnfolder]: 1682/4818 cut-off events. [2022-11-02 21:08:01,104 INFO L131 PetriNetUnfolder]: For 101373/101464 co-relation queries the response was YES. [2022-11-02 21:08:01,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33185 conditions, 4818 events. 1682/4818 cut-off events. For 101373/101464 co-relation queries the response was YES. Maximal size of possible extension queue 215. Compared 41637 event pairs, 175 based on Foata normal form. 67/4872 useless extension candidates. Maximal degree in co-relation 33036. Up to 2249 conditions per place. [2022-11-02 21:08:01,216 INFO L137 encePairwiseOnDemand]: 87/103 looper letters, 740 selfloop transitions, 216 changer transitions 7/1068 dead transitions. [2022-11-02 21:08:01,216 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 1068 transitions, 22051 flow [2022-11-02 21:08:01,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 21:08:01,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-02 21:08:01,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 835 transitions. [2022-11-02 21:08:01,218 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.736981465136805 [2022-11-02 21:08:01,218 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 835 transitions. [2022-11-02 21:08:01,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 835 transitions. [2022-11-02 21:08:01,218 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:08:01,219 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 835 transitions. [2022-11-02 21:08:01,220 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 75.9090909090909) internal successors, (835), 11 states have internal predecessors, (835), 0 states have call successors, (0), 0 states 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 21:08:01,221 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 21:08:01,221 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 21:08:01,221 INFO L175 Difference]: Start difference. First operand has 457 places, 846 transitions, 16615 flow. Second operand 11 states and 835 transitions. [2022-11-02 21:08:01,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 466 places, 1068 transitions, 22051 flow [2022-11-02 21:08:02,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 462 places, 1068 transitions, 21952 flow, removed 13 selfloop flow, removed 4 redundant places. [2022-11-02 21:08:02,224 INFO L231 Difference]: Finished difference. Result has 470 places, 919 transitions, 19316 flow [2022-11-02 21:08:02,225 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=16532, PETRI_DIFFERENCE_MINUEND_PLACES=452, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=846, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=147, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=654, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=19316, PETRI_PLACES=470, PETRI_TRANSITIONS=919} [2022-11-02 21:08:02,226 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 368 predicate places. [2022-11-02 21:08:02,226 INFO L495 AbstractCegarLoop]: Abstraction has has 470 places, 919 transitions, 19316 flow [2022-11-02 21:08:02,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 21:08:02,226 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:08:02,226 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:08:02,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-02 21:08:02,227 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 21:08:02,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:08:02,227 INFO L85 PathProgramCache]: Analyzing trace with hash 2056573842, now seen corresponding path program 4 times [2022-11-02 21:08:02,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:08:02,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87872372] [2022-11-02 21:08:02,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:08:02,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:08:02,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:08:03,607 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 21:08:03,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:08:03,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87872372] [2022-11-02 21:08:03,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87872372] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:08:03,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:08:03,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-02 21:08:03,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798218822] [2022-11-02 21:08:03,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:08:03,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-02 21:08:03,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:08:03,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-02 21:08:03,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-11-02 21:08:03,609 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2022-11-02 21:08:03,610 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 470 places, 919 transitions, 19316 flow. Second operand has 11 states, 11 states have (on average 60.36363636363637) internal successors, (664), 11 states have internal predecessors, (664), 0 states have call successors, (0), 0 states 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 21:08:03,610 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:08:03,610 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2022-11-02 21:08:03,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:08:07,375 INFO L130 PetriNetUnfolder]: 1866/5334 cut-off events. [2022-11-02 21:08:07,375 INFO L131 PetriNetUnfolder]: For 133061/133118 co-relation queries the response was YES. [2022-11-02 21:08:07,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37814 conditions, 5334 events. 1866/5334 cut-off events. For 133061/133118 co-relation queries the response was YES. Maximal size of possible extension queue 239. Compared 46910 event pairs, 209 based on Foata normal form. 61/5385 useless extension candidates. Maximal degree in co-relation 37657. Up to 2246 conditions per place. [2022-11-02 21:08:07,484 INFO L137 encePairwiseOnDemand]: 87/103 looper letters, 785 selfloop transitions, 263 changer transitions 7/1158 dead transitions. [2022-11-02 21:08:07,484 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 480 places, 1158 transitions, 25302 flow [2022-11-02 21:08:07,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 21:08:07,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-02 21:08:07,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 823 transitions. [2022-11-02 21:08:07,486 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7263901147396293 [2022-11-02 21:08:07,486 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 823 transitions. [2022-11-02 21:08:07,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 823 transitions. [2022-11-02 21:08:07,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:08:07,486 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 823 transitions. [2022-11-02 21:08:07,488 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 74.81818181818181) internal successors, (823), 11 states have internal predecessors, (823), 0 states have call successors, (0), 0 states 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 21:08:07,489 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 21:08:07,489 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 21:08:07,489 INFO L175 Difference]: Start difference. First operand has 470 places, 919 transitions, 19316 flow. Second operand 11 states and 823 transitions. [2022-11-02 21:08:07,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 480 places, 1158 transitions, 25302 flow [2022-11-02 21:08:08,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 477 places, 1158 transitions, 25131 flow, removed 51 selfloop flow, removed 3 redundant places. [2022-11-02 21:08:08,548 INFO L231 Difference]: Finished difference. Result has 486 places, 995 transitions, 22394 flow [2022-11-02 21:08:08,550 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=19161, PETRI_DIFFERENCE_MINUEND_PLACES=467, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=919, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=188, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=675, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=22394, PETRI_PLACES=486, PETRI_TRANSITIONS=995} [2022-11-02 21:08:08,550 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 384 predicate places. [2022-11-02 21:08:08,550 INFO L495 AbstractCegarLoop]: Abstraction has has 486 places, 995 transitions, 22394 flow [2022-11-02 21:08:08,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 60.36363636363637) internal successors, (664), 11 states have internal predecessors, (664), 0 states have call successors, (0), 0 states 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 21:08:08,551 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:08:08,551 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:08:08,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-02 21:08:08,551 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 21:08:08,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:08:08,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1380732856, now seen corresponding path program 5 times [2022-11-02 21:08:08,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:08:08,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064802168] [2022-11-02 21:08:08,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:08:08,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:08:08,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:08:10,120 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 21:08:10,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:08:10,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064802168] [2022-11-02 21:08:10,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064802168] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:08:10,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:08:10,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:08:10,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410398730] [2022-11-02 21:08:10,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:08:10,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:08:10,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:08:10,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:08:10,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:08:10,124 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 103 [2022-11-02 21:08:10,125 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 486 places, 995 transitions, 22394 flow. Second operand has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 21:08:10,125 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:08:10,125 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 103 [2022-11-02 21:08:10,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:08:15,172 INFO L130 PetriNetUnfolder]: 2088/5911 cut-off events. [2022-11-02 21:08:15,173 INFO L131 PetriNetUnfolder]: For 184237/184411 co-relation queries the response was YES. [2022-11-02 21:08:15,347 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43852 conditions, 5911 events. 2088/5911 cut-off events. For 184237/184411 co-relation queries the response was YES. Maximal size of possible extension queue 288. Compared 53623 event pairs, 234 based on Foata normal form. 114/6012 useless extension candidates. Maximal degree in co-relation 43687. Up to 2719 conditions per place. [2022-11-02 21:08:15,373 INFO L137 encePairwiseOnDemand]: 87/103 looper letters, 841 selfloop transitions, 311 changer transitions 15/1272 dead transitions. [2022-11-02 21:08:15,373 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 500 places, 1272 transitions, 30260 flow [2022-11-02 21:08:15,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 21:08:15,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-02 21:08:15,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1107 transitions. [2022-11-02 21:08:15,375 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7165048543689321 [2022-11-02 21:08:15,375 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1107 transitions. [2022-11-02 21:08:15,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1107 transitions. [2022-11-02 21:08:15,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:08:15,376 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1107 transitions. [2022-11-02 21:08:15,378 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 73.8) internal successors, (1107), 15 states have internal predecessors, (1107), 0 states have call successors, (0), 0 states 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 21:08:15,379 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 103.0) internal successors, (1648), 16 states have internal predecessors, (1648), 0 states have call successors, (0), 0 states 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 21:08:15,380 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 103.0) internal successors, (1648), 16 states have internal predecessors, (1648), 0 states have call successors, (0), 0 states 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 21:08:15,380 INFO L175 Difference]: Start difference. First operand has 486 places, 995 transitions, 22394 flow. Second operand 15 states and 1107 transitions. [2022-11-02 21:08:15,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 500 places, 1272 transitions, 30260 flow [2022-11-02 21:08:16,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 499 places, 1272 transitions, 30084 flow, removed 78 selfloop flow, removed 1 redundant places. [2022-11-02 21:08:16,990 INFO L231 Difference]: Finished difference. Result has 503 places, 1086 transitions, 26406 flow [2022-11-02 21:08:16,990 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=22276, PETRI_DIFFERENCE_MINUEND_PLACES=485, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=995, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=236, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=743, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=26406, PETRI_PLACES=503, PETRI_TRANSITIONS=1086} [2022-11-02 21:08:16,991 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 401 predicate places. [2022-11-02 21:08:16,991 INFO L495 AbstractCegarLoop]: Abstraction has has 503 places, 1086 transitions, 26406 flow [2022-11-02 21:08:16,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 21:08:16,991 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:08:16,991 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:08:16,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-02 21:08:16,991 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 21:08:16,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:08:16,992 INFO L85 PathProgramCache]: Analyzing trace with hash 778130330, now seen corresponding path program 6 times [2022-11-02 21:08:16,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:08:16,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137551015] [2022-11-02 21:08:16,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:08:16,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:08:17,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:08:18,270 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 21:08:18,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:08:18,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137551015] [2022-11-02 21:08:18,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137551015] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:08:18,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:08:18,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:08:18,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444647875] [2022-11-02 21:08:18,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:08:18,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:08:18,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:08:18,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:08:18,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:08:18,273 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 103 [2022-11-02 21:08:18,273 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 503 places, 1086 transitions, 26406 flow. Second operand has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 21:08:18,273 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:08:18,274 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 103 [2022-11-02 21:08:18,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:08:23,600 INFO L130 PetriNetUnfolder]: 2201/6285 cut-off events. [2022-11-02 21:08:23,600 INFO L131 PetriNetUnfolder]: For 217938/218123 co-relation queries the response was YES. [2022-11-02 21:08:23,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47533 conditions, 6285 events. 2201/6285 cut-off events. For 217938/218123 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 58375 event pairs, 221 based on Foata normal form. 109/6382 useless extension candidates. Maximal degree in co-relation 47364. Up to 2610 conditions per place. [2022-11-02 21:08:24,031 INFO L137 encePairwiseOnDemand]: 87/103 looper letters, 822 selfloop transitions, 397 changer transitions 14/1338 dead transitions. [2022-11-02 21:08:24,031 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 516 places, 1338 transitions, 33176 flow [2022-11-02 21:08:24,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-02 21:08:24,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-02 21:08:24,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1061 transitions. [2022-11-02 21:08:24,034 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7357836338418863 [2022-11-02 21:08:24,034 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1061 transitions. [2022-11-02 21:08:24,034 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1061 transitions. [2022-11-02 21:08:24,035 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:08:24,035 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1061 transitions. [2022-11-02 21:08:24,037 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 75.78571428571429) internal successors, (1061), 14 states have internal predecessors, (1061), 0 states have call successors, (0), 0 states 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 21:08:24,039 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 103.0) internal successors, (1545), 15 states have internal predecessors, (1545), 0 states have call successors, (0), 0 states 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 21:08:24,040 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 103.0) internal successors, (1545), 15 states have internal predecessors, (1545), 0 states have call successors, (0), 0 states 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 21:08:24,040 INFO L175 Difference]: Start difference. First operand has 503 places, 1086 transitions, 26406 flow. Second operand 14 states and 1061 transitions. [2022-11-02 21:08:24,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 516 places, 1338 transitions, 33176 flow [2022-11-02 21:08:26,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 512 places, 1338 transitions, 32956 flow, removed 66 selfloop flow, removed 4 redundant places. [2022-11-02 21:08:26,166 INFO L231 Difference]: Finished difference. Result has 519 places, 1150 transitions, 29595 flow [2022-11-02 21:08:26,167 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=26199, PETRI_DIFFERENCE_MINUEND_PLACES=499, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1086, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=335, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=729, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=29595, PETRI_PLACES=519, PETRI_TRANSITIONS=1150} [2022-11-02 21:08:26,168 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 417 predicate places. [2022-11-02 21:08:26,168 INFO L495 AbstractCegarLoop]: Abstraction has has 519 places, 1150 transitions, 29595 flow [2022-11-02 21:08:26,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 21:08:26,168 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:08:26,168 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:08:26,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-02 21:08:26,168 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 21:08:26,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:08:26,169 INFO L85 PathProgramCache]: Analyzing trace with hash 841263638, now seen corresponding path program 7 times [2022-11-02 21:08:26,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:08:26,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267097563] [2022-11-02 21:08:26,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:08:26,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:08:26,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:08:27,770 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 21:08:27,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:08:27,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267097563] [2022-11-02 21:08:27,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267097563] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:08:27,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:08:27,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:08:27,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749845163] [2022-11-02 21:08:27,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:08:27,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:08:27,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:08:27,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:08:27,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:08:27,777 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 103 [2022-11-02 21:08:27,778 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 519 places, 1150 transitions, 29595 flow. Second operand has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 21:08:27,778 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:08:27,778 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 103 [2022-11-02 21:08:27,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:08:34,240 INFO L130 PetriNetUnfolder]: 2277/6508 cut-off events. [2022-11-02 21:08:34,240 INFO L131 PetriNetUnfolder]: For 247615/247818 co-relation queries the response was YES. [2022-11-02 21:08:34,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50579 conditions, 6508 events. 2277/6508 cut-off events. For 247615/247818 co-relation queries the response was YES. Maximal size of possible extension queue 340. Compared 60908 event pairs, 245 based on Foata normal form. 93/6590 useless extension candidates. Maximal degree in co-relation 50403. Up to 2433 conditions per place. [2022-11-02 21:08:34,583 INFO L137 encePairwiseOnDemand]: 87/103 looper letters, 791 selfloop transitions, 473 changer transitions 13/1382 dead transitions. [2022-11-02 21:08:34,584 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 533 places, 1382 transitions, 35882 flow [2022-11-02 21:08:34,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 21:08:34,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-02 21:08:34,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1119 transitions. [2022-11-02 21:08:34,586 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7242718446601941 [2022-11-02 21:08:34,586 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1119 transitions. [2022-11-02 21:08:34,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1119 transitions. [2022-11-02 21:08:34,586 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:08:34,586 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1119 transitions. [2022-11-02 21:08:34,587 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 74.6) internal successors, (1119), 15 states have internal predecessors, (1119), 0 states have call successors, (0), 0 states 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 21:08:34,591 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 103.0) internal successors, (1648), 16 states have internal predecessors, (1648), 0 states have call successors, (0), 0 states 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 21:08:34,592 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 103.0) internal successors, (1648), 16 states have internal predecessors, (1648), 0 states have call successors, (0), 0 states 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 21:08:34,592 INFO L175 Difference]: Start difference. First operand has 519 places, 1150 transitions, 29595 flow. Second operand 15 states and 1119 transitions. [2022-11-02 21:08:34,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 533 places, 1382 transitions, 35882 flow [2022-11-02 21:08:36,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 528 places, 1382 transitions, 35139 flow, removed 98 selfloop flow, removed 5 redundant places. [2022-11-02 21:08:36,812 INFO L231 Difference]: Finished difference. Result has 537 places, 1201 transitions, 32000 flow [2022-11-02 21:08:36,813 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=28916, PETRI_DIFFERENCE_MINUEND_PLACES=514, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=422, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=703, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=32000, PETRI_PLACES=537, PETRI_TRANSITIONS=1201} [2022-11-02 21:08:36,813 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 435 predicate places. [2022-11-02 21:08:36,813 INFO L495 AbstractCegarLoop]: Abstraction has has 537 places, 1201 transitions, 32000 flow [2022-11-02 21:08:36,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 21:08:36,813 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:08:36,814 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:08:36,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-02 21:08:36,814 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 21:08:36,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:08:36,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1128972198, now seen corresponding path program 8 times [2022-11-02 21:08:36,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:08:36,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340993276] [2022-11-02 21:08:36,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:08:36,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:08:36,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:08:37,968 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 21:08:37,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:08:37,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340993276] [2022-11-02 21:08:37,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340993276] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:08:37,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:08:37,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:08:37,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753010633] [2022-11-02 21:08:37,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:08:37,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:08:37,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:08:37,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:08:37,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:08:37,970 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 103 [2022-11-02 21:08:37,971 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 537 places, 1201 transitions, 32000 flow. Second operand has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 21:08:37,971 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:08:37,971 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 103 [2022-11-02 21:08:37,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:08:44,124 INFO L130 PetriNetUnfolder]: 2260/6437 cut-off events. [2022-11-02 21:08:44,124 INFO L131 PetriNetUnfolder]: For 255434/255676 co-relation queries the response was YES. [2022-11-02 21:08:44,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51187 conditions, 6437 events. 2260/6437 cut-off events. For 255434/255676 co-relation queries the response was YES. Maximal size of possible extension queue 336. Compared 60176 event pairs, 277 based on Foata normal form. 135/6559 useless extension candidates. Maximal degree in co-relation 51002. Up to 2959 conditions per place. [2022-11-02 21:08:44,240 INFO L137 encePairwiseOnDemand]: 87/103 looper letters, 860 selfloop transitions, 358 changer transitions 11/1334 dead transitions. [2022-11-02 21:08:44,240 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 547 places, 1334 transitions, 36005 flow [2022-11-02 21:08:44,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 21:08:44,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-02 21:08:44,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 830 transitions. [2022-11-02 21:08:44,242 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.732568402471315 [2022-11-02 21:08:44,242 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 830 transitions. [2022-11-02 21:08:44,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 830 transitions. [2022-11-02 21:08:44,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:08:44,242 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 830 transitions. [2022-11-02 21:08:44,243 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 75.45454545454545) internal successors, (830), 11 states have internal predecessors, (830), 0 states have call successors, (0), 0 states 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 21:08:44,244 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 21:08:44,244 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 21:08:44,244 INFO L175 Difference]: Start difference. First operand has 537 places, 1201 transitions, 32000 flow. Second operand 11 states and 830 transitions. [2022-11-02 21:08:44,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 547 places, 1334 transitions, 36005 flow [2022-11-02 21:08:46,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 543 places, 1334 transitions, 35348 flow, removed 95 selfloop flow, removed 4 redundant places. [2022-11-02 21:08:46,603 INFO L231 Difference]: Finished difference. Result has 546 places, 1200 transitions, 32173 flow [2022-11-02 21:08:46,604 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=31343, PETRI_DIFFERENCE_MINUEND_PLACES=533, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=356, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=844, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=32173, PETRI_PLACES=546, PETRI_TRANSITIONS=1200} [2022-11-02 21:08:46,604 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 444 predicate places. [2022-11-02 21:08:46,605 INFO L495 AbstractCegarLoop]: Abstraction has has 546 places, 1200 transitions, 32173 flow [2022-11-02 21:08:46,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 21:08:46,605 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:08:46,605 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:08:46,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-02 21:08:46,605 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 21:08:46,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:08:46,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1066179186, now seen corresponding path program 9 times [2022-11-02 21:08:46,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:08:46,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576451846] [2022-11-02 21:08:46,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:08:46,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:08:46,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:08:48,058 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 21:08:48,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:08:48,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576451846] [2022-11-02 21:08:48,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576451846] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:08:48,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:08:48,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:08:48,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681677562] [2022-11-02 21:08:48,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:08:48,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:08:48,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:08:48,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:08:48,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:08:48,061 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 103 [2022-11-02 21:08:48,061 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 546 places, 1200 transitions, 32173 flow. Second operand has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 21:08:48,061 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:08:48,061 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 103 [2022-11-02 21:08:48,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:08:54,586 INFO L130 PetriNetUnfolder]: 2324/6653 cut-off events. [2022-11-02 21:08:54,586 INFO L131 PetriNetUnfolder]: For 269836/270052 co-relation queries the response was YES. [2022-11-02 21:08:54,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53434 conditions, 6653 events. 2324/6653 cut-off events. For 269836/270052 co-relation queries the response was YES. Maximal size of possible extension queue 353. Compared 62851 event pairs, 213 based on Foata normal form. 106/6747 useless extension candidates. Maximal degree in co-relation 53247. Up to 2740 conditions per place. [2022-11-02 21:08:54,751 INFO L137 encePairwiseOnDemand]: 87/103 looper letters, 831 selfloop transitions, 462 changer transitions 12/1410 dead transitions. [2022-11-02 21:08:54,751 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 560 places, 1410 transitions, 38212 flow [2022-11-02 21:08:54,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 21:08:54,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-02 21:08:54,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1117 transitions. [2022-11-02 21:08:54,753 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7229773462783171 [2022-11-02 21:08:54,753 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1117 transitions. [2022-11-02 21:08:54,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1117 transitions. [2022-11-02 21:08:54,754 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:08:54,754 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1117 transitions. [2022-11-02 21:08:54,755 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 74.46666666666667) internal successors, (1117), 15 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states 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 21:08:54,757 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 103.0) internal successors, (1648), 16 states have internal predecessors, (1648), 0 states have call successors, (0), 0 states 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 21:08:54,758 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 103.0) internal successors, (1648), 16 states have internal predecessors, (1648), 0 states have call successors, (0), 0 states 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 21:08:54,758 INFO L175 Difference]: Start difference. First operand has 546 places, 1200 transitions, 32173 flow. Second operand 15 states and 1117 transitions. [2022-11-02 21:08:54,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 560 places, 1410 transitions, 38212 flow [2022-11-02 21:08:57,191 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 554 places, 1410 transitions, 37316 flow, removed 4 selfloop flow, removed 6 redundant places. [2022-11-02 21:08:57,220 INFO L231 Difference]: Finished difference. Result has 558 places, 1229 transitions, 33883 flow [2022-11-02 21:08:57,221 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=31334, PETRI_DIFFERENCE_MINUEND_PLACES=540, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=430, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=762, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=33883, PETRI_PLACES=558, PETRI_TRANSITIONS=1229} [2022-11-02 21:08:57,221 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 456 predicate places. [2022-11-02 21:08:57,222 INFO L495 AbstractCegarLoop]: Abstraction has has 558 places, 1229 transitions, 33883 flow [2022-11-02 21:08:57,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 21:08:57,222 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:08:57,222 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:08:57,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-02 21:08:57,223 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 21:08:57,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:08:57,223 INFO L85 PathProgramCache]: Analyzing trace with hash 118517620, now seen corresponding path program 10 times [2022-11-02 21:08:57,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:08:57,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582510280] [2022-11-02 21:08:57,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:08:57,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:08:57,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:08:58,542 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 21:08:58,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:08:58,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582510280] [2022-11-02 21:08:58,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582510280] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:08:58,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:08:58,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:08:58,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761840833] [2022-11-02 21:08:58,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:08:58,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:08:58,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:08:58,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:08:58,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:08:58,545 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 103 [2022-11-02 21:08:58,546 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 558 places, 1229 transitions, 33883 flow. Second operand has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 21:08:58,546 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:08:58,546 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 103 [2022-11-02 21:08:58,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:09:04,931 INFO L130 PetriNetUnfolder]: 2430/6957 cut-off events. [2022-11-02 21:09:04,931 INFO L131 PetriNetUnfolder]: For 286389/286595 co-relation queries the response was YES. [2022-11-02 21:09:05,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56451 conditions, 6957 events. 2430/6957 cut-off events. For 286389/286595 co-relation queries the response was YES. Maximal size of possible extension queue 376. Compared 66412 event pairs, 235 based on Foata normal form. 99/7045 useless extension candidates. Maximal degree in co-relation 56260. Up to 2512 conditions per place. [2022-11-02 21:09:05,116 INFO L137 encePairwiseOnDemand]: 87/103 looper letters, 815 selfloop transitions, 520 changer transitions 6/1446 dead transitions. [2022-11-02 21:09:05,116 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 571 places, 1446 transitions, 39991 flow [2022-11-02 21:09:05,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-02 21:09:05,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-02 21:09:05,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1058 transitions. [2022-11-02 21:09:05,118 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7337031900138696 [2022-11-02 21:09:05,119 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1058 transitions. [2022-11-02 21:09:05,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1058 transitions. [2022-11-02 21:09:05,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:09:05,119 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1058 transitions. [2022-11-02 21:09:05,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 75.57142857142857) internal successors, (1058), 14 states have internal predecessors, (1058), 0 states have call successors, (0), 0 states 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 21:09:05,122 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 103.0) internal successors, (1545), 15 states have internal predecessors, (1545), 0 states have call successors, (0), 0 states 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 21:09:05,122 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 103.0) internal successors, (1545), 15 states have internal predecessors, (1545), 0 states have call successors, (0), 0 states 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 21:09:05,122 INFO L175 Difference]: Start difference. First operand has 558 places, 1229 transitions, 33883 flow. Second operand 14 states and 1058 transitions. [2022-11-02 21:09:05,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 571 places, 1446 transitions, 39991 flow [2022-11-02 21:09:07,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 561 places, 1446 transitions, 38838 flow, removed 37 selfloop flow, removed 10 redundant places. [2022-11-02 21:09:07,872 INFO L231 Difference]: Finished difference. Result has 566 places, 1274 transitions, 35888 flow [2022-11-02 21:09:07,873 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=32808, PETRI_DIFFERENCE_MINUEND_PLACES=548, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=475, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=732, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=35888, PETRI_PLACES=566, PETRI_TRANSITIONS=1274} [2022-11-02 21:09:07,873 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 464 predicate places. [2022-11-02 21:09:07,874 INFO L495 AbstractCegarLoop]: Abstraction has has 566 places, 1274 transitions, 35888 flow [2022-11-02 21:09:07,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 21:09:07,874 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:07,874 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:07,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-02 21:09:07,875 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 21:09:07,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:07,875 INFO L85 PathProgramCache]: Analyzing trace with hash 401367538, now seen corresponding path program 11 times [2022-11-02 21:09:07,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:07,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096882022] [2022-11-02 21:09:07,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:07,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:07,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:09,150 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 21:09:09,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:09,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096882022] [2022-11-02 21:09:09,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096882022] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:09,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:09,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:09:09,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944110590] [2022-11-02 21:09:09,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:09,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:09:09,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:09,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:09:09,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:09:09,153 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 103 [2022-11-02 21:09:09,154 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 566 places, 1274 transitions, 35888 flow. Second operand has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 21:09:09,154 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:09,154 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 103 [2022-11-02 21:09:09,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:09:15,510 INFO L130 PetriNetUnfolder]: 2497/7156 cut-off events. [2022-11-02 21:09:15,510 INFO L131 PetriNetUnfolder]: For 299527/299730 co-relation queries the response was YES. [2022-11-02 21:09:15,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58826 conditions, 7156 events. 2497/7156 cut-off events. For 299527/299730 co-relation queries the response was YES. Maximal size of possible extension queue 393. Compared 68782 event pairs, 250 based on Foata normal form. 98/7243 useless extension candidates. Maximal degree in co-relation 58633. Up to 2556 conditions per place. [2022-11-02 21:09:15,886 INFO L137 encePairwiseOnDemand]: 87/103 looper letters, 837 selfloop transitions, 535 changer transitions 12/1489 dead transitions. [2022-11-02 21:09:15,886 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 578 places, 1489 transitions, 42045 flow [2022-11-02 21:09:15,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 21:09:15,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-02 21:09:15,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 999 transitions. [2022-11-02 21:09:15,888 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7460791635548917 [2022-11-02 21:09:15,888 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 999 transitions. [2022-11-02 21:09:15,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 999 transitions. [2022-11-02 21:09:15,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:09:15,889 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 999 transitions. [2022-11-02 21:09:15,890 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 76.84615384615384) internal successors, (999), 13 states have internal predecessors, (999), 0 states have call successors, (0), 0 states 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 21:09:15,891 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 103.0) internal successors, (1442), 14 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 21:09:15,891 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 103.0) internal successors, (1442), 14 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 21:09:15,891 INFO L175 Difference]: Start difference. First operand has 566 places, 1274 transitions, 35888 flow. Second operand 13 states and 999 transitions. [2022-11-02 21:09:15,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 578 places, 1489 transitions, 42045 flow [2022-11-02 21:09:18,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 572 places, 1489 transitions, 41356 flow, removed 44 selfloop flow, removed 6 redundant places. [2022-11-02 21:09:18,922 INFO L231 Difference]: Finished difference. Result has 577 places, 1307 transitions, 38162 flow [2022-11-02 21:09:18,923 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=35255, PETRI_DIFFERENCE_MINUEND_PLACES=560, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=498, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=762, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=38162, PETRI_PLACES=577, PETRI_TRANSITIONS=1307} [2022-11-02 21:09:18,924 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 475 predicate places. [2022-11-02 21:09:18,924 INFO L495 AbstractCegarLoop]: Abstraction has has 577 places, 1307 transitions, 38162 flow [2022-11-02 21:09:18,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 21:09:18,924 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:18,924 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:18,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-11-02 21:09:18,925 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 21:09:18,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:18,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1032223710, now seen corresponding path program 12 times [2022-11-02 21:09:18,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:18,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5985141] [2022-11-02 21:09:18,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:18,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:18,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:19,542 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 21:09:19,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:19,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5985141] [2022-11-02 21:09:19,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5985141] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:19,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:19,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:09:19,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670854827] [2022-11-02 21:09:19,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:19,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:09:19,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:19,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:09:19,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:09:19,545 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 103 [2022-11-02 21:09:19,546 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 577 places, 1307 transitions, 38162 flow. Second operand has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 21:09:19,546 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:19,546 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 103 [2022-11-02 21:09:19,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:09:25,803 INFO L130 PetriNetUnfolder]: 2532/7270 cut-off events. [2022-11-02 21:09:25,803 INFO L131 PetriNetUnfolder]: For 318105/318304 co-relation queries the response was YES. [2022-11-02 21:09:25,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60418 conditions, 7270 events. 2532/7270 cut-off events. For 318105/318304 co-relation queries the response was YES. Maximal size of possible extension queue 395. Compared 69636 event pairs, 242 based on Foata normal form. 75/7335 useless extension candidates. Maximal degree in co-relation 60221. Up to 2839 conditions per place. [2022-11-02 21:09:25,971 INFO L137 encePairwiseOnDemand]: 87/103 looper letters, 959 selfloop transitions, 402 changer transitions 15/1481 dead transitions. [2022-11-02 21:09:25,971 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 588 places, 1481 transitions, 42983 flow [2022-11-02 21:09:25,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 21:09:25,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-02 21:09:25,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 915 transitions. [2022-11-02 21:09:25,973 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7402912621359223 [2022-11-02 21:09:25,973 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 915 transitions. [2022-11-02 21:09:25,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 915 transitions. [2022-11-02 21:09:25,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:09:25,973 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 915 transitions. [2022-11-02 21:09:25,974 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 76.25) internal successors, (915), 12 states have internal predecessors, (915), 0 states have call successors, (0), 0 states 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 21:09:25,975 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 21:09:25,975 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 21:09:25,975 INFO L175 Difference]: Start difference. First operand has 577 places, 1307 transitions, 38162 flow. Second operand 12 states and 915 transitions. [2022-11-02 21:09:25,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 588 places, 1481 transitions, 42983 flow [2022-11-02 21:09:28,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 580 places, 1481 transitions, 42192 flow, removed 26 selfloop flow, removed 8 redundant places. [2022-11-02 21:09:29,019 INFO L231 Difference]: Finished difference. Result has 585 places, 1342 transitions, 39487 flow [2022-11-02 21:09:29,020 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=37415, PETRI_DIFFERENCE_MINUEND_PLACES=569, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=370, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=911, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=39487, PETRI_PLACES=585, PETRI_TRANSITIONS=1342} [2022-11-02 21:09:29,021 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 483 predicate places. [2022-11-02 21:09:29,021 INFO L495 AbstractCegarLoop]: Abstraction has has 585 places, 1342 transitions, 39487 flow [2022-11-02 21:09:29,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 21:09:29,021 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:29,021 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:29,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-11-02 21:09:29,022 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 21:09:29,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:29,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1598342586, now seen corresponding path program 13 times [2022-11-02 21:09:29,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:29,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073959828] [2022-11-02 21:09:29,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:29,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:29,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:30,558 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 21:09:30,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:30,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073959828] [2022-11-02 21:09:30,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073959828] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:30,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:30,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:09:30,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46195610] [2022-11-02 21:09:30,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:30,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:09:30,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:30,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:09:30,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:09:30,564 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 103 [2022-11-02 21:09:30,566 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 585 places, 1342 transitions, 39487 flow. Second operand has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 21:09:30,566 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:30,566 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 103 [2022-11-02 21:09:30,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:09:37,737 INFO L130 PetriNetUnfolder]: 2638/7530 cut-off events. [2022-11-02 21:09:37,737 INFO L131 PetriNetUnfolder]: For 356909/357119 co-relation queries the response was YES. [2022-11-02 21:09:37,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63878 conditions, 7530 events. 2638/7530 cut-off events. For 356909/357119 co-relation queries the response was YES. Maximal size of possible extension queue 414. Compared 72819 event pairs, 255 based on Foata normal form. 98/7619 useless extension candidates. Maximal degree in co-relation 63677. Up to 1952 conditions per place. [2022-11-02 21:09:37,904 INFO L137 encePairwiseOnDemand]: 87/103 looper letters, 877 selfloop transitions, 569 changer transitions 8/1559 dead transitions. [2022-11-02 21:09:37,904 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 595 places, 1559 transitions, 45754 flow [2022-11-02 21:09:37,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 21:09:37,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-02 21:09:37,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 872 transitions. [2022-11-02 21:09:37,906 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7696381288614298 [2022-11-02 21:09:37,906 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 872 transitions. [2022-11-02 21:09:37,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 872 transitions. [2022-11-02 21:09:37,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:09:37,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 872 transitions. [2022-11-02 21:09:37,907 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 79.27272727272727) internal successors, (872), 11 states have internal predecessors, (872), 0 states have call successors, (0), 0 states 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 21:09:37,908 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 21:09:37,908 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 21:09:37,909 INFO L175 Difference]: Start difference. First operand has 585 places, 1342 transitions, 39487 flow. Second operand 11 states and 872 transitions. [2022-11-02 21:09:37,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 595 places, 1559 transitions, 45754 flow [2022-11-02 21:09:41,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 591 places, 1559 transitions, 45518 flow, removed 16 selfloop flow, removed 4 redundant places. [2022-11-02 21:09:41,207 INFO L231 Difference]: Finished difference. Result has 595 places, 1382 transitions, 42450 flow [2022-11-02 21:09:41,208 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=39285, PETRI_DIFFERENCE_MINUEND_PLACES=581, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1342, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=529, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=793, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=42450, PETRI_PLACES=595, PETRI_TRANSITIONS=1382} [2022-11-02 21:09:41,209 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 493 predicate places. [2022-11-02 21:09:41,209 INFO L495 AbstractCegarLoop]: Abstraction has has 595 places, 1382 transitions, 42450 flow [2022-11-02 21:09:41,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 21:09:41,209 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:41,209 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:41,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-11-02 21:09:41,210 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 21:09:41,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:41,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1291103233, now seen corresponding path program 1 times [2022-11-02 21:09:41,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:41,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55119689] [2022-11-02 21:09:41,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:41,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:41,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:41,923 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 21:09:41,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:41,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55119689] [2022-11-02 21:09:41,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55119689] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:41,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:41,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-02 21:09:41,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032331463] [2022-11-02 21:09:41,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:41,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-02 21:09:41,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:41,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-02 21:09:41,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-11-02 21:09:41,925 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 103 [2022-11-02 21:09:41,926 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 595 places, 1382 transitions, 42450 flow. Second operand has 11 states, 11 states have (on average 58.45454545454545) internal successors, (643), 11 states have internal predecessors, (643), 0 states have call successors, (0), 0 states 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 21:09:41,926 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:41,926 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 103 [2022-11-02 21:09:41,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:09:49,905 INFO L130 PetriNetUnfolder]: 3001/8133 cut-off events. [2022-11-02 21:09:49,905 INFO L131 PetriNetUnfolder]: For 417324/417462 co-relation queries the response was YES. [2022-11-02 21:09:50,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70943 conditions, 8133 events. 3001/8133 cut-off events. For 417324/417462 co-relation queries the response was YES. Maximal size of possible extension queue 417. Compared 77400 event pairs, 575 based on Foata normal form. 131/8227 useless extension candidates. Maximal degree in co-relation 70737. Up to 3270 conditions per place. [2022-11-02 21:09:50,111 INFO L137 encePairwiseOnDemand]: 83/103 looper letters, 1164 selfloop transitions, 293 changer transitions 47/1604 dead transitions. [2022-11-02 21:09:50,111 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 610 places, 1604 transitions, 49885 flow [2022-11-02 21:09:50,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-02 21:09:50,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-02 21:09:50,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1114 transitions. [2022-11-02 21:09:50,113 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6759708737864077 [2022-11-02 21:09:50,113 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1114 transitions. [2022-11-02 21:09:50,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1114 transitions. [2022-11-02 21:09:50,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:09:50,114 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1114 transitions. [2022-11-02 21:09:50,115 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 69.625) internal successors, (1114), 16 states have internal predecessors, (1114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:50,117 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 103.0) internal successors, (1751), 17 states have internal predecessors, (1751), 0 states have call successors, (0), 0 states 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 21:09:50,117 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 103.0) internal successors, (1751), 17 states have internal predecessors, (1751), 0 states have call successors, (0), 0 states 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 21:09:50,117 INFO L175 Difference]: Start difference. First operand has 595 places, 1382 transitions, 42450 flow. Second operand 16 states and 1114 transitions. [2022-11-02 21:09:50,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 610 places, 1604 transitions, 49885 flow