./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/parallel-bakery-3.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b 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_f10c99c4-fdcd-4902-9761-b581805c3dbe/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10c99c4-fdcd-4902-9761-b581805c3dbe/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10c99c4-fdcd-4902-9761-b581805c3dbe/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10c99c4-fdcd-4902-9761-b581805c3dbe/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-bakery-3.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10c99c4-fdcd-4902-9761-b581805c3dbe/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10c99c4-fdcd-4902-9761-b581805c3dbe/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f6b55d0b1c42ab7aaefa2efb35454af77e64d43e1c106bfebef7445a043c9409 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 10:37:46,026 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:37:46,029 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:37:46,069 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:37:46,070 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:37:46,097 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:37:46,100 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:37:46,104 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:37:46,106 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:37:46,112 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:37:46,114 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:37:46,116 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:37:46,117 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:37:46,119 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:37:46,121 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:37:46,122 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:37:46,124 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:37:46,125 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:37:46,127 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:37:46,134 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:37:46,135 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:37:46,137 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:37:46,139 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:37:46,140 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:37:46,150 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:37:46,150 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:37:46,150 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:37:46,152 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:37:46,153 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:37:46,154 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:37:46,154 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:37:46,155 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:37:46,157 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:37:46,158 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:37:46,159 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:37:46,160 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:37:46,160 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:37:46,161 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:37:46,161 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:37:46,162 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:37:46,162 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:37:46,163 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10c99c4-fdcd-4902-9761-b581805c3dbe/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 10:37:46,203 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:37:46,204 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:37:46,204 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:37:46,205 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:37:46,206 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:37:46,206 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:37:46,207 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:37:46,207 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:37:46,207 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:37:46,208 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:37:46,209 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:37:46,209 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 10:37:46,209 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:37:46,210 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:37:46,210 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:37:46,210 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:37:46,210 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:37:46,211 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:37:46,211 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 10:37:46,211 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:37:46,211 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:37:46,211 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:37:46,212 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:37:46,212 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:37:46,212 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:37:46,212 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:37:46,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:37:46,213 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:37:46,214 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:37:46,214 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:37:46,214 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:37:46,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:37:46,215 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:37:46,215 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:37:46,215 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:37:46,215 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_f10c99c4-fdcd-4902-9761-b581805c3dbe/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10c99c4-fdcd-4902-9761-b581805c3dbe/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6b55d0b1c42ab7aaefa2efb35454af77e64d43e1c106bfebef7445a043c9409 [2022-11-20 10:37:46,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:37:46,616 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:37:46,619 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:37:46,620 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:37:46,621 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:37:46,622 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10c99c4-fdcd-4902-9761-b581805c3dbe/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/weaver/parallel-bakery-3.wvr.c [2022-11-20 10:37:49,646 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:37:49,918 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:37:49,920 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10c99c4-fdcd-4902-9761-b581805c3dbe/sv-benchmarks/c/weaver/parallel-bakery-3.wvr.c [2022-11-20 10:37:49,931 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10c99c4-fdcd-4902-9761-b581805c3dbe/bin/uautomizer-ug76WZFUDN/data/2d02846ed/15cd0295b17a49cb9d79b34bd50941df/FLAG527429434 [2022-11-20 10:37:49,955 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10c99c4-fdcd-4902-9761-b581805c3dbe/bin/uautomizer-ug76WZFUDN/data/2d02846ed/15cd0295b17a49cb9d79b34bd50941df [2022-11-20 10:37:49,958 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:37:49,961 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:37:49,965 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:37:49,966 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:37:49,970 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:37:49,971 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:37:49" (1/1) ... [2022-11-20 10:37:49,973 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11713fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:49, skipping insertion in model container [2022-11-20 10:37:49,973 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:37:49" (1/1) ... [2022-11-20 10:37:50,007 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:37:50,092 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:37:50,421 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10c99c4-fdcd-4902-9761-b581805c3dbe/sv-benchmarks/c/weaver/parallel-bakery-3.wvr.c[5426,5439] [2022-11-20 10:37:50,423 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:37:50,434 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:37:50,495 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10c99c4-fdcd-4902-9761-b581805c3dbe/sv-benchmarks/c/weaver/parallel-bakery-3.wvr.c[5426,5439] [2022-11-20 10:37:50,508 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:37:50,527 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:37:50,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:50 WrapperNode [2022-11-20 10:37:50,529 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:37:50,530 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:37:50,530 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:37:50,530 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:37:50,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:50" (1/1) ... [2022-11-20 10:37:50,570 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:50" (1/1) ... [2022-11-20 10:37:50,611 INFO L138 Inliner]: procedures = 22, calls = 110, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 656 [2022-11-20 10:37:50,612 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:37:50,613 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:37:50,613 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:37:50,613 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:37:50,631 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:50" (1/1) ... [2022-11-20 10:37:50,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:50" (1/1) ... [2022-11-20 10:37:50,636 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:50" (1/1) ... [2022-11-20 10:37:50,636 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:50" (1/1) ... [2022-11-20 10:37:50,650 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:50" (1/1) ... [2022-11-20 10:37:50,654 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:50" (1/1) ... [2022-11-20 10:37:50,657 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:50" (1/1) ... [2022-11-20 10:37:50,659 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:50" (1/1) ... [2022-11-20 10:37:50,664 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:37:50,665 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:37:50,665 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:37:50,665 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:37:50,666 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:50" (1/1) ... [2022-11-20 10:37:50,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:37:50,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10c99c4-fdcd-4902-9761-b581805c3dbe/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:37:50,698 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10c99c4-fdcd-4902-9761-b581805c3dbe/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:37:50,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10c99c4-fdcd-4902-9761-b581805c3dbe/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:37:50,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:37:50,777 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 10:37:50,777 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 10:37:50,777 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 10:37:50,777 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 10:37:50,779 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-20 10:37:50,779 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-20 10:37:50,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:37:50,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:37:50,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 10:37:50,780 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 10:37:50,780 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 10:37:50,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:37:50,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:37:50,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 10:37:50,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:37:50,782 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 10:37:50,936 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:37:50,940 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:37:51,942 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:37:52,414 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:37:52,414 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 10:37:52,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:37:52 BoogieIcfgContainer [2022-11-20 10:37:52,418 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:37:52,421 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:37:52,421 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:37:52,424 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:37:52,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:37:49" (1/3) ... [2022-11-20 10:37:52,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3be84705 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:37:52, skipping insertion in model container [2022-11-20 10:37:52,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:50" (2/3) ... [2022-11-20 10:37:52,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3be84705 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:37:52, skipping insertion in model container [2022-11-20 10:37:52,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:37:52" (3/3) ... [2022-11-20 10:37:52,430 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-bakery-3.wvr.c [2022-11-20 10:37:52,440 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 10:37:52,452 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:37:52,452 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 114 error locations. [2022-11-20 10:37:52,452 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 10:37:52,602 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-20 10:37:52,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 368 places, 366 transitions, 756 flow [2022-11-20 10:37:52,851 INFO L130 PetriNetUnfolder]: 8/363 cut-off events. [2022-11-20 10:37:52,852 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 10:37:52,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 376 conditions, 363 events. 8/363 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 705 event pairs, 0 based on Foata normal form. 0/241 useless extension candidates. Maximal degree in co-relation 270. Up to 2 conditions per place. [2022-11-20 10:37:52,860 INFO L82 GeneralOperation]: Start removeDead. Operand has 368 places, 366 transitions, 756 flow [2022-11-20 10:37:52,878 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 346 places, 343 transitions, 704 flow [2022-11-20 10:37:52,898 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:37:52,906 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;@30aceff7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:37:52,906 INFO L358 AbstractCegarLoop]: Starting to check reachability of 210 error locations. [2022-11-20 10:37:52,926 INFO L130 PetriNetUnfolder]: 0/28 cut-off events. [2022-11-20 10:37:52,926 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 10:37:52,926 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:37:52,927 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:37:52,927 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 206 more)] === [2022-11-20 10:37:52,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:37:52,933 INFO L85 PathProgramCache]: Analyzing trace with hash 597901975, now seen corresponding path program 1 times [2022-11-20 10:37:52,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:37:52,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38347163] [2022-11-20 10:37:52,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:37:52,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:37:53,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:53,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:37:53,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:37:53,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38347163] [2022-11-20 10:37:53,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38347163] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:37:53,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:37:53,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:37:53,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658978208] [2022-11-20 10:37:53,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:37:53,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:37:53,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:37:53,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:37:53,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:37:53,313 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 366 [2022-11-20 10:37:53,318 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 346 places, 343 transitions, 704 flow. Second operand has 3 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:37:53,318 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:37:53,318 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 366 [2022-11-20 10:37:53,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:37:56,097 INFO L130 PetriNetUnfolder]: 4542/8012 cut-off events. [2022-11-20 10:37:56,098 INFO L131 PetriNetUnfolder]: For 732/732 co-relation queries the response was YES. [2022-11-20 10:37:56,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15672 conditions, 8012 events. 4542/8012 cut-off events. For 732/732 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 50377 event pairs, 4536 based on Foata normal form. 1/7933 useless extension candidates. Maximal degree in co-relation 15283. Up to 7105 conditions per place. [2022-11-20 10:37:56,195 INFO L137 encePairwiseOnDemand]: 269/366 looper letters, 48 selfloop transitions, 2 changer transitions 1/248 dead transitions. [2022-11-20 10:37:56,196 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 248 transitions, 614 flow [2022-11-20 10:37:56,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:37:56,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:37:56,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 802 transitions. [2022-11-20 10:37:56,221 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7304189435336976 [2022-11-20 10:37:56,222 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 802 transitions. [2022-11-20 10:37:56,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 802 transitions. [2022-11-20 10:37:56,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:37:56,231 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 802 transitions. [2022-11-20 10:37:56,237 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 267.3333333333333) internal successors, (802), 3 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:37:56,247 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:37:56,248 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:37:56,250 INFO L175 Difference]: Start difference. First operand has 346 places, 343 transitions, 704 flow. Second operand 3 states and 802 transitions. [2022-11-20 10:37:56,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 248 transitions, 614 flow [2022-11-20 10:37:56,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 248 transitions, 602 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-20 10:37:56,271 INFO L231 Difference]: Finished difference. Result has 248 places, 247 transitions, 504 flow [2022-11-20 10:37:56,274 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=502, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=248, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=246, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=504, PETRI_PLACES=248, PETRI_TRANSITIONS=247} [2022-11-20 10:37:56,282 INFO L288 CegarLoopForPetriNet]: 346 programPoint places, -98 predicate places. [2022-11-20 10:37:56,283 INFO L495 AbstractCegarLoop]: Abstraction has has 248 places, 247 transitions, 504 flow [2022-11-20 10:37:56,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:37:56,284 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:37:56,284 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:37:56,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 10:37:56,285 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 206 more)] === [2022-11-20 10:37:56,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:37:56,286 INFO L85 PathProgramCache]: Analyzing trace with hash 91197797, now seen corresponding path program 1 times [2022-11-20 10:37:56,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:37:56,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352925978] [2022-11-20 10:37:56,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:37:56,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:37:56,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:56,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:37:56,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:37:56,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352925978] [2022-11-20 10:37:56,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352925978] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:37:56,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:37:56,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:37:56,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675343957] [2022-11-20 10:37:56,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:37:56,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:37:56,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:37:56,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:37:56,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:37:56,409 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 366 [2022-11-20 10:37:56,414 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 247 transitions, 504 flow. Second operand has 3 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:37:56,415 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:37:56,415 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 366 [2022-11-20 10:37:56,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:37:58,691 INFO L130 PetriNetUnfolder]: 4542/8010 cut-off events. [2022-11-20 10:37:58,692 INFO L131 PetriNetUnfolder]: For 183/183 co-relation queries the response was YES. [2022-11-20 10:37:58,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15304 conditions, 8010 events. 4542/8010 cut-off events. For 183/183 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 50409 event pairs, 4536 based on Foata normal form. 0/7932 useless extension candidates. Maximal degree in co-relation 15267. Up to 7105 conditions per place. [2022-11-20 10:37:58,759 INFO L137 encePairwiseOnDemand]: 363/366 looper letters, 48 selfloop transitions, 2 changer transitions 0/246 dead transitions. [2022-11-20 10:37:58,759 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 246 transitions, 602 flow [2022-11-20 10:37:58,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:37:58,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:37:58,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 708 transitions. [2022-11-20 10:37:58,763 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.644808743169399 [2022-11-20 10:37:58,763 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 708 transitions. [2022-11-20 10:37:58,763 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 708 transitions. [2022-11-20 10:37:58,764 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:37:58,764 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 708 transitions. [2022-11-20 10:37:58,766 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 236.0) internal successors, (708), 3 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:37:58,768 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:37:58,769 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:37:58,770 INFO L175 Difference]: Start difference. First operand has 248 places, 247 transitions, 504 flow. Second operand 3 states and 708 transitions. [2022-11-20 10:37:58,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 246 transitions, 602 flow [2022-11-20 10:37:58,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 246 transitions, 598 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:37:58,780 INFO L231 Difference]: Finished difference. Result has 246 places, 246 transitions, 502 flow [2022-11-20 10:37:58,781 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=498, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=502, PETRI_PLACES=246, PETRI_TRANSITIONS=246} [2022-11-20 10:37:58,782 INFO L288 CegarLoopForPetriNet]: 346 programPoint places, -100 predicate places. [2022-11-20 10:37:58,783 INFO L495 AbstractCegarLoop]: Abstraction has has 246 places, 246 transitions, 502 flow [2022-11-20 10:37:58,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:37:58,784 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:37:58,784 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:37:58,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 10:37:58,784 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 206 more)] === [2022-11-20 10:37:58,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:37:58,785 INFO L85 PathProgramCache]: Analyzing trace with hash -2146420914, now seen corresponding path program 1 times [2022-11-20 10:37:58,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:37:58,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310603902] [2022-11-20 10:37:58,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:37:58,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:37:58,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:58,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:37:58,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:37:58,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310603902] [2022-11-20 10:37:58,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310603902] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:37:58,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:37:58,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:37:58,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567367940] [2022-11-20 10:37:58,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:37:58,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:37:58,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:37:58,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:37:58,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:37:58,899 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 366 [2022-11-20 10:37:58,901 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 246 transitions, 502 flow. Second operand has 3 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:37:58,901 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:37:58,902 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 366 [2022-11-20 10:37:58,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:38:00,998 INFO L130 PetriNetUnfolder]: 4542/8009 cut-off events. [2022-11-20 10:38:00,998 INFO L131 PetriNetUnfolder]: For 183/183 co-relation queries the response was YES. [2022-11-20 10:38:01,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15303 conditions, 8009 events. 4542/8009 cut-off events. For 183/183 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 50422 event pairs, 4536 based on Foata normal form. 0/7932 useless extension candidates. Maximal degree in co-relation 15260. Up to 7105 conditions per place. [2022-11-20 10:38:01,066 INFO L137 encePairwiseOnDemand]: 363/366 looper letters, 48 selfloop transitions, 2 changer transitions 0/245 dead transitions. [2022-11-20 10:38:01,066 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 245 transitions, 600 flow [2022-11-20 10:38:01,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:38:01,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:38:01,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 708 transitions. [2022-11-20 10:38:01,069 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.644808743169399 [2022-11-20 10:38:01,069 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 708 transitions. [2022-11-20 10:38:01,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 708 transitions. [2022-11-20 10:38:01,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:38:01,070 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 708 transitions. [2022-11-20 10:38:01,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 236.0) internal successors, (708), 3 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:01,075 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:01,076 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:01,076 INFO L175 Difference]: Start difference. First operand has 246 places, 246 transitions, 502 flow. Second operand 3 states and 708 transitions. [2022-11-20 10:38:01,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 245 transitions, 600 flow [2022-11-20 10:38:01,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 245 transitions, 596 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:38:01,082 INFO L231 Difference]: Finished difference. Result has 245 places, 245 transitions, 500 flow [2022-11-20 10:38:01,082 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=496, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=500, PETRI_PLACES=245, PETRI_TRANSITIONS=245} [2022-11-20 10:38:01,085 INFO L288 CegarLoopForPetriNet]: 346 programPoint places, -101 predicate places. [2022-11-20 10:38:01,085 INFO L495 AbstractCegarLoop]: Abstraction has has 245 places, 245 transitions, 500 flow [2022-11-20 10:38:01,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:01,086 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:38:01,086 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:38:01,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 10:38:01,087 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 206 more)] === [2022-11-20 10:38:01,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:38:01,088 INFO L85 PathProgramCache]: Analyzing trace with hash -991984023, now seen corresponding path program 1 times [2022-11-20 10:38:01,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:38:01,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894252432] [2022-11-20 10:38:01,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:38:01,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:38:01,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:01,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:38:01,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:38:01,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894252432] [2022-11-20 10:38:01,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894252432] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:38:01,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:38:01,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:38:01,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281084880] [2022-11-20 10:38:01,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:38:01,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:38:01,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:38:01,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:38:01,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:38:01,186 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 366 [2022-11-20 10:38:01,187 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 245 transitions, 500 flow. Second operand has 3 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:01,188 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:38:01,188 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 366 [2022-11-20 10:38:01,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:38:02,808 INFO L130 PetriNetUnfolder]: 4542/8008 cut-off events. [2022-11-20 10:38:02,808 INFO L131 PetriNetUnfolder]: For 183/183 co-relation queries the response was YES. [2022-11-20 10:38:02,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15302 conditions, 8008 events. 4542/8008 cut-off events. For 183/183 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 50404 event pairs, 4536 based on Foata normal form. 0/7932 useless extension candidates. Maximal degree in co-relation 15253. Up to 7105 conditions per place. [2022-11-20 10:38:02,866 INFO L137 encePairwiseOnDemand]: 363/366 looper letters, 48 selfloop transitions, 2 changer transitions 0/244 dead transitions. [2022-11-20 10:38:02,866 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 244 transitions, 598 flow [2022-11-20 10:38:02,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:38:02,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:38:02,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 708 transitions. [2022-11-20 10:38:02,869 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.644808743169399 [2022-11-20 10:38:02,869 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 708 transitions. [2022-11-20 10:38:02,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 708 transitions. [2022-11-20 10:38:02,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:38:02,870 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 708 transitions. [2022-11-20 10:38:02,872 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 236.0) internal successors, (708), 3 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:02,874 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:02,875 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:02,876 INFO L175 Difference]: Start difference. First operand has 245 places, 245 transitions, 500 flow. Second operand 3 states and 708 transitions. [2022-11-20 10:38:02,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 244 transitions, 598 flow [2022-11-20 10:38:02,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 244 transitions, 594 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:38:02,881 INFO L231 Difference]: Finished difference. Result has 244 places, 244 transitions, 498 flow [2022-11-20 10:38:02,882 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=498, PETRI_PLACES=244, PETRI_TRANSITIONS=244} [2022-11-20 10:38:02,882 INFO L288 CegarLoopForPetriNet]: 346 programPoint places, -102 predicate places. [2022-11-20 10:38:02,883 INFO L495 AbstractCegarLoop]: Abstraction has has 244 places, 244 transitions, 498 flow [2022-11-20 10:38:02,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:02,884 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:38:02,884 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:38:02,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 10:38:02,884 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 206 more)] === [2022-11-20 10:38:02,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:38:02,885 INFO L85 PathProgramCache]: Analyzing trace with hash -956167535, now seen corresponding path program 1 times [2022-11-20 10:38:02,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:38:02,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978474227] [2022-11-20 10:38:02,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:38:02,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:38:02,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:02,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:38:02,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:38:02,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978474227] [2022-11-20 10:38:02,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978474227] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:38:02,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:38:02,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:38:02,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921217279] [2022-11-20 10:38:02,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:38:02,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:38:02,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:38:02,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:38:02,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:38:02,935 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 366 [2022-11-20 10:38:02,937 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 244 transitions, 498 flow. Second operand has 3 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:02,937 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:38:02,937 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 366 [2022-11-20 10:38:02,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:38:04,840 INFO L130 PetriNetUnfolder]: 4542/8007 cut-off events. [2022-11-20 10:38:04,841 INFO L131 PetriNetUnfolder]: For 183/183 co-relation queries the response was YES. [2022-11-20 10:38:04,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15301 conditions, 8007 events. 4542/8007 cut-off events. For 183/183 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 50440 event pairs, 4536 based on Foata normal form. 0/7932 useless extension candidates. Maximal degree in co-relation 15245. Up to 7105 conditions per place. [2022-11-20 10:38:04,905 INFO L137 encePairwiseOnDemand]: 363/366 looper letters, 48 selfloop transitions, 2 changer transitions 0/243 dead transitions. [2022-11-20 10:38:04,905 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 243 transitions, 596 flow [2022-11-20 10:38:04,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:38:04,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:38:04,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 708 transitions. [2022-11-20 10:38:04,908 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.644808743169399 [2022-11-20 10:38:04,908 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 708 transitions. [2022-11-20 10:38:04,909 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 708 transitions. [2022-11-20 10:38:04,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:38:04,909 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 708 transitions. [2022-11-20 10:38:04,911 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 236.0) internal successors, (708), 3 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:04,914 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:04,915 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:04,915 INFO L175 Difference]: Start difference. First operand has 244 places, 244 transitions, 498 flow. Second operand 3 states and 708 transitions. [2022-11-20 10:38:04,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 243 transitions, 596 flow [2022-11-20 10:38:04,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 243 transitions, 592 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:38:04,920 INFO L231 Difference]: Finished difference. Result has 243 places, 243 transitions, 496 flow [2022-11-20 10:38:04,921 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=492, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=496, PETRI_PLACES=243, PETRI_TRANSITIONS=243} [2022-11-20 10:38:04,922 INFO L288 CegarLoopForPetriNet]: 346 programPoint places, -103 predicate places. [2022-11-20 10:38:04,922 INFO L495 AbstractCegarLoop]: Abstraction has has 243 places, 243 transitions, 496 flow [2022-11-20 10:38:04,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:04,923 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:38:04,923 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:38:04,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 10:38:04,924 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 206 more)] === [2022-11-20 10:38:04,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:38:04,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1072391099, now seen corresponding path program 1 times [2022-11-20 10:38:04,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:38:04,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259916584] [2022-11-20 10:38:04,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:38:04,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:38:04,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:05,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:38:05,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:38:05,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259916584] [2022-11-20 10:38:05,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259916584] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:38:05,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:38:05,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:38:05,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985926507] [2022-11-20 10:38:05,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:38:05,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:38:05,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:38:05,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:38:05,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:38:05,017 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 366 [2022-11-20 10:38:05,018 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 243 transitions, 496 flow. Second operand has 3 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:05,018 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:38:05,019 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 366 [2022-11-20 10:38:05,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:38:06,410 INFO L130 PetriNetUnfolder]: 4542/8006 cut-off events. [2022-11-20 10:38:06,411 INFO L131 PetriNetUnfolder]: For 183/183 co-relation queries the response was YES. [2022-11-20 10:38:06,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15300 conditions, 8006 events. 4542/8006 cut-off events. For 183/183 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 50480 event pairs, 4536 based on Foata normal form. 0/7932 useless extension candidates. Maximal degree in co-relation 15237. Up to 7105 conditions per place. [2022-11-20 10:38:06,458 INFO L137 encePairwiseOnDemand]: 363/366 looper letters, 48 selfloop transitions, 2 changer transitions 0/242 dead transitions. [2022-11-20 10:38:06,458 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 242 transitions, 594 flow [2022-11-20 10:38:06,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:38:06,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:38:06,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 708 transitions. [2022-11-20 10:38:06,461 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.644808743169399 [2022-11-20 10:38:06,462 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 708 transitions. [2022-11-20 10:38:06,462 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 708 transitions. [2022-11-20 10:38:06,463 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:38:06,463 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 708 transitions. [2022-11-20 10:38:06,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 236.0) internal successors, (708), 3 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:06,468 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:06,469 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:06,469 INFO L175 Difference]: Start difference. First operand has 243 places, 243 transitions, 496 flow. Second operand 3 states and 708 transitions. [2022-11-20 10:38:06,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 242 transitions, 594 flow [2022-11-20 10:38:06,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 242 transitions, 590 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:38:06,474 INFO L231 Difference]: Finished difference. Result has 242 places, 242 transitions, 494 flow [2022-11-20 10:38:06,475 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=494, PETRI_PLACES=242, PETRI_TRANSITIONS=242} [2022-11-20 10:38:06,476 INFO L288 CegarLoopForPetriNet]: 346 programPoint places, -104 predicate places. [2022-11-20 10:38:06,476 INFO L495 AbstractCegarLoop]: Abstraction has has 242 places, 242 transitions, 494 flow [2022-11-20 10:38:06,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:06,477 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:38:06,477 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:38:06,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 10:38:06,477 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 206 more)] === [2022-11-20 10:38:06,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:38:06,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1611749806, now seen corresponding path program 1 times [2022-11-20 10:38:06,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:38:06,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963242018] [2022-11-20 10:38:06,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:38:06,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:38:06,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:06,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:38:06,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:38:06,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963242018] [2022-11-20 10:38:06,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963242018] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:38:06,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:38:06,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:38:06,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329383372] [2022-11-20 10:38:06,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:38:06,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:38:06,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:38:06,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:38:06,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:38:06,524 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 366 [2022-11-20 10:38:06,526 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 242 transitions, 494 flow. Second operand has 3 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:06,526 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:38:06,526 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 366 [2022-11-20 10:38:06,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:38:08,080 INFO L130 PetriNetUnfolder]: 4542/8005 cut-off events. [2022-11-20 10:38:08,080 INFO L131 PetriNetUnfolder]: For 183/183 co-relation queries the response was YES. [2022-11-20 10:38:08,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15301 conditions, 8005 events. 4542/8005 cut-off events. For 183/183 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 50393 event pairs, 4536 based on Foata normal form. 0/7932 useless extension candidates. Maximal degree in co-relation 15231. Up to 7107 conditions per place. [2022-11-20 10:38:08,120 INFO L137 encePairwiseOnDemand]: 363/366 looper letters, 50 selfloop transitions, 2 changer transitions 0/241 dead transitions. [2022-11-20 10:38:08,120 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 241 transitions, 596 flow [2022-11-20 10:38:08,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:38:08,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:38:08,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 701 transitions. [2022-11-20 10:38:08,124 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6384335154826958 [2022-11-20 10:38:08,124 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 701 transitions. [2022-11-20 10:38:08,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 701 transitions. [2022-11-20 10:38:08,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:38:08,124 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 701 transitions. [2022-11-20 10:38:08,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 233.66666666666666) internal successors, (701), 3 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:08,130 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:08,131 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:08,131 INFO L175 Difference]: Start difference. First operand has 242 places, 242 transitions, 494 flow. Second operand 3 states and 701 transitions. [2022-11-20 10:38:08,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 241 transitions, 596 flow [2022-11-20 10:38:08,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 241 transitions, 592 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:38:08,137 INFO L231 Difference]: Finished difference. Result has 241 places, 241 transitions, 492 flow [2022-11-20 10:38:08,138 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=488, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=492, PETRI_PLACES=241, PETRI_TRANSITIONS=241} [2022-11-20 10:38:08,139 INFO L288 CegarLoopForPetriNet]: 346 programPoint places, -105 predicate places. [2022-11-20 10:38:08,139 INFO L495 AbstractCegarLoop]: Abstraction has has 241 places, 241 transitions, 492 flow [2022-11-20 10:38:08,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:08,140 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:38:08,140 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:38:08,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 10:38:08,141 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 206 more)] === [2022-11-20 10:38:08,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:38:08,141 INFO L85 PathProgramCache]: Analyzing trace with hash -2126273410, now seen corresponding path program 1 times [2022-11-20 10:38:08,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:38:08,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027632810] [2022-11-20 10:38:08,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:38:08,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:38:08,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:08,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:38:08,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:38:08,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027632810] [2022-11-20 10:38:08,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027632810] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:38:08,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:38:08,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:38:08,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939539849] [2022-11-20 10:38:08,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:38:08,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:38:08,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:38:08,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:38:08,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:38:08,192 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 366 [2022-11-20 10:38:08,193 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 241 transitions, 492 flow. Second operand has 3 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:08,194 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:38:08,194 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 366 [2022-11-20 10:38:08,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:38:09,585 INFO L130 PetriNetUnfolder]: 4542/8004 cut-off events. [2022-11-20 10:38:09,585 INFO L131 PetriNetUnfolder]: For 183/183 co-relation queries the response was YES. [2022-11-20 10:38:09,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15295 conditions, 8004 events. 4542/8004 cut-off events. For 183/183 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 50415 event pairs, 4536 based on Foata normal form. 0/7932 useless extension candidates. Maximal degree in co-relation 15218. Up to 7102 conditions per place. [2022-11-20 10:38:09,622 INFO L137 encePairwiseOnDemand]: 363/366 looper letters, 45 selfloop transitions, 2 changer transitions 0/240 dead transitions. [2022-11-20 10:38:09,622 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 240 transitions, 584 flow [2022-11-20 10:38:09,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:38:09,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:38:09,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 714 transitions. [2022-11-20 10:38:09,625 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6502732240437158 [2022-11-20 10:38:09,626 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 714 transitions. [2022-11-20 10:38:09,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 714 transitions. [2022-11-20 10:38:09,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:38:09,627 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 714 transitions. [2022-11-20 10:38:09,629 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 238.0) internal successors, (714), 3 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:09,631 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:09,632 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:09,633 INFO L175 Difference]: Start difference. First operand has 241 places, 241 transitions, 492 flow. Second operand 3 states and 714 transitions. [2022-11-20 10:38:09,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 240 transitions, 584 flow [2022-11-20 10:38:09,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 240 transitions, 580 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:38:09,638 INFO L231 Difference]: Finished difference. Result has 240 places, 240 transitions, 490 flow [2022-11-20 10:38:09,638 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=486, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=490, PETRI_PLACES=240, PETRI_TRANSITIONS=240} [2022-11-20 10:38:09,639 INFO L288 CegarLoopForPetriNet]: 346 programPoint places, -106 predicate places. [2022-11-20 10:38:09,639 INFO L495 AbstractCegarLoop]: Abstraction has has 240 places, 240 transitions, 490 flow [2022-11-20 10:38:09,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:09,640 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:38:09,640 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:38:09,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 10:38:09,641 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 206 more)] === [2022-11-20 10:38:09,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:38:09,641 INFO L85 PathProgramCache]: Analyzing trace with hash -491756566, now seen corresponding path program 1 times [2022-11-20 10:38:09,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:38:09,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204118080] [2022-11-20 10:38:09,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:38:09,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:38:09,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:09,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:38:09,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:38:09,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204118080] [2022-11-20 10:38:09,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204118080] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:38:09,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:38:09,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:38:09,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931536300] [2022-11-20 10:38:09,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:38:09,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:38:09,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:38:09,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:38:09,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:38:09,689 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 366 [2022-11-20 10:38:09,691 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 240 transitions, 490 flow. Second operand has 3 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:09,691 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:38:09,691 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 366 [2022-11-20 10:38:09,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:38:11,406 INFO L130 PetriNetUnfolder]: 4542/8003 cut-off events. [2022-11-20 10:38:11,406 INFO L131 PetriNetUnfolder]: For 183/183 co-relation queries the response was YES. [2022-11-20 10:38:11,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15294 conditions, 8003 events. 4542/8003 cut-off events. For 183/183 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 50406 event pairs, 4536 based on Foata normal form. 0/7932 useless extension candidates. Maximal degree in co-relation 15210. Up to 7102 conditions per place. [2022-11-20 10:38:11,448 INFO L137 encePairwiseOnDemand]: 363/366 looper letters, 45 selfloop transitions, 2 changer transitions 0/239 dead transitions. [2022-11-20 10:38:11,448 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 239 transitions, 582 flow [2022-11-20 10:38:11,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:38:11,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:38:11,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 714 transitions. [2022-11-20 10:38:11,452 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6502732240437158 [2022-11-20 10:38:11,452 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 714 transitions. [2022-11-20 10:38:11,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 714 transitions. [2022-11-20 10:38:11,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:38:11,453 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 714 transitions. [2022-11-20 10:38:11,456 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 238.0) internal successors, (714), 3 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:11,462 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:11,463 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:11,463 INFO L175 Difference]: Start difference. First operand has 240 places, 240 transitions, 490 flow. Second operand 3 states and 714 transitions. [2022-11-20 10:38:11,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 239 transitions, 582 flow [2022-11-20 10:38:11,468 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 239 transitions, 578 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:38:11,475 INFO L231 Difference]: Finished difference. Result has 239 places, 239 transitions, 488 flow [2022-11-20 10:38:11,476 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=488, PETRI_PLACES=239, PETRI_TRANSITIONS=239} [2022-11-20 10:38:11,477 INFO L288 CegarLoopForPetriNet]: 346 programPoint places, -107 predicate places. [2022-11-20 10:38:11,477 INFO L495 AbstractCegarLoop]: Abstraction has has 239 places, 239 transitions, 488 flow [2022-11-20 10:38:11,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:11,478 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:38:11,478 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:38:11,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 10:38:11,479 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 206 more)] === [2022-11-20 10:38:11,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:38:11,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1518270261, now seen corresponding path program 1 times [2022-11-20 10:38:11,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:38:11,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834159519] [2022-11-20 10:38:11,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:38:11,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:38:11,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:11,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:38:11,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:38:11,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834159519] [2022-11-20 10:38:11,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834159519] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:38:11,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:38:11,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:38:11,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146072355] [2022-11-20 10:38:11,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:38:11,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:38:11,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:38:11,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:38:11,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:38:11,591 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 366 [2022-11-20 10:38:11,592 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 239 transitions, 488 flow. Second operand has 3 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:11,592 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:38:11,592 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 366 [2022-11-20 10:38:11,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:38:12,901 INFO L130 PetriNetUnfolder]: 4542/8002 cut-off events. [2022-11-20 10:38:12,901 INFO L131 PetriNetUnfolder]: For 183/183 co-relation queries the response was YES. [2022-11-20 10:38:12,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15293 conditions, 8002 events. 4542/8002 cut-off events. For 183/183 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 50399 event pairs, 4536 based on Foata normal form. 0/7932 useless extension candidates. Maximal degree in co-relation 15202. Up to 7102 conditions per place. [2022-11-20 10:38:12,947 INFO L137 encePairwiseOnDemand]: 363/366 looper letters, 45 selfloop transitions, 2 changer transitions 0/238 dead transitions. [2022-11-20 10:38:12,947 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 238 transitions, 580 flow [2022-11-20 10:38:12,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:38:12,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:38:12,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 714 transitions. [2022-11-20 10:38:12,950 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6502732240437158 [2022-11-20 10:38:12,951 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 714 transitions. [2022-11-20 10:38:12,951 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 714 transitions. [2022-11-20 10:38:12,952 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:38:12,952 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 714 transitions. [2022-11-20 10:38:12,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 238.0) internal successors, (714), 3 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:12,957 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:12,958 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:12,959 INFO L175 Difference]: Start difference. First operand has 239 places, 239 transitions, 488 flow. Second operand 3 states and 714 transitions. [2022-11-20 10:38:12,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 238 transitions, 580 flow [2022-11-20 10:38:12,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 238 transitions, 576 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:38:12,965 INFO L231 Difference]: Finished difference. Result has 238 places, 238 transitions, 486 flow [2022-11-20 10:38:12,965 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=482, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=486, PETRI_PLACES=238, PETRI_TRANSITIONS=238} [2022-11-20 10:38:12,966 INFO L288 CegarLoopForPetriNet]: 346 programPoint places, -108 predicate places. [2022-11-20 10:38:12,966 INFO L495 AbstractCegarLoop]: Abstraction has has 238 places, 238 transitions, 486 flow [2022-11-20 10:38:12,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:12,967 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:38:12,968 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:38:12,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 10:38:12,968 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 206 more)] === [2022-11-20 10:38:12,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:38:12,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1973323219, now seen corresponding path program 1 times [2022-11-20 10:38:12,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:38:12,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387439604] [2022-11-20 10:38:12,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:38:12,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:38:12,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:13,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:38:13,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:38:13,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387439604] [2022-11-20 10:38:13,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387439604] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:38:13,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:38:13,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:38:13,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87236412] [2022-11-20 10:38:13,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:38:13,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:38:13,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:38:13,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:38:13,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:38:13,230 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 366 [2022-11-20 10:38:13,232 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 238 transitions, 486 flow. Second operand has 3 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:13,232 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:38:13,232 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 366 [2022-11-20 10:38:13,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:38:14,941 INFO L130 PetriNetUnfolder]: 4798/9716 cut-off events. [2022-11-20 10:38:14,941 INFO L131 PetriNetUnfolder]: For 209/248 co-relation queries the response was YES. [2022-11-20 10:38:14,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17435 conditions, 9716 events. 4798/9716 cut-off events. For 209/248 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 71629 event pairs, 2797 based on Foata normal form. 1/9525 useless extension candidates. Maximal degree in co-relation 17336. Up to 4420 conditions per place. [2022-11-20 10:38:15,012 INFO L137 encePairwiseOnDemand]: 356/366 looper letters, 78 selfloop transitions, 7 changer transitions 3/276 dead transitions. [2022-11-20 10:38:15,013 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 276 transitions, 740 flow [2022-11-20 10:38:15,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:38:15,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:38:15,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 746 transitions. [2022-11-20 10:38:15,017 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6794171220400729 [2022-11-20 10:38:15,017 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 746 transitions. [2022-11-20 10:38:15,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 746 transitions. [2022-11-20 10:38:15,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:38:15,019 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 746 transitions. [2022-11-20 10:38:15,021 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 248.66666666666666) internal successors, (746), 3 states have internal predecessors, (746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:15,024 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:15,025 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:15,026 INFO L175 Difference]: Start difference. First operand has 238 places, 238 transitions, 486 flow. Second operand 3 states and 746 transitions. [2022-11-20 10:38:15,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 276 transitions, 740 flow [2022-11-20 10:38:15,028 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 276 transitions, 736 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:38:15,034 INFO L231 Difference]: Finished difference. Result has 238 places, 239 transitions, 523 flow [2022-11-20 10:38:15,034 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=478, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=523, PETRI_PLACES=238, PETRI_TRANSITIONS=239} [2022-11-20 10:38:15,035 INFO L288 CegarLoopForPetriNet]: 346 programPoint places, -108 predicate places. [2022-11-20 10:38:15,035 INFO L495 AbstractCegarLoop]: Abstraction has has 238 places, 239 transitions, 523 flow [2022-11-20 10:38:15,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:15,036 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:38:15,037 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:38:15,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 10:38:15,037 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 206 more)] === [2022-11-20 10:38:15,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:38:15,038 INFO L85 PathProgramCache]: Analyzing trace with hash 784300009, now seen corresponding path program 1 times [2022-11-20 10:38:15,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:38:15,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713951338] [2022-11-20 10:38:15,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:38:15,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:38:15,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:15,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:38:15,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:38:15,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713951338] [2022-11-20 10:38:15,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713951338] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:38:15,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:38:15,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:38:15,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137767240] [2022-11-20 10:38:15,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:38:15,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:38:15,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:38:15,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:38:15,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:38:15,096 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 366 [2022-11-20 10:38:15,097 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 239 transitions, 523 flow. Second operand has 3 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:15,102 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:38:15,102 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 366 [2022-11-20 10:38:15,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:38:17,628 INFO L130 PetriNetUnfolder]: 8286/15174 cut-off events. [2022-11-20 10:38:17,628 INFO L131 PetriNetUnfolder]: For 2933/3011 co-relation queries the response was YES. [2022-11-20 10:38:17,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32381 conditions, 15174 events. 8286/15174 cut-off events. For 2933/3011 co-relation queries the response was YES. Maximal size of possible extension queue 404. Compared 114508 event pairs, 2787 based on Foata normal form. 0/14945 useless extension candidates. Maximal degree in co-relation 26492. Up to 7078 conditions per place. [2022-11-20 10:38:17,756 INFO L137 encePairwiseOnDemand]: 360/366 looper letters, 93 selfloop transitions, 5 changer transitions 0/285 dead transitions. [2022-11-20 10:38:17,757 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 285 transitions, 852 flow [2022-11-20 10:38:17,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:38:17,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:38:17,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 753 transitions. [2022-11-20 10:38:17,760 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6857923497267759 [2022-11-20 10:38:17,760 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 753 transitions. [2022-11-20 10:38:17,760 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 753 transitions. [2022-11-20 10:38:17,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:38:17,761 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 753 transitions. [2022-11-20 10:38:17,763 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 251.0) internal successors, (753), 3 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:17,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:17,766 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:17,766 INFO L175 Difference]: Start difference. First operand has 238 places, 239 transitions, 523 flow. Second operand 3 states and 753 transitions. [2022-11-20 10:38:17,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 285 transitions, 852 flow [2022-11-20 10:38:17,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 285 transitions, 826 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:38:17,888 INFO L231 Difference]: Finished difference. Result has 236 places, 242 transitions, 543 flow [2022-11-20 10:38:17,888 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=507, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=543, PETRI_PLACES=236, PETRI_TRANSITIONS=242} [2022-11-20 10:38:17,890 INFO L288 CegarLoopForPetriNet]: 346 programPoint places, -110 predicate places. [2022-11-20 10:38:18,054 INFO L495 AbstractCegarLoop]: Abstraction has has 236 places, 242 transitions, 543 flow [2022-11-20 10:38:18,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:18,054 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:38:18,055 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:38:18,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 10:38:18,055 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 206 more)] === [2022-11-20 10:38:18,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:38:18,055 INFO L85 PathProgramCache]: Analyzing trace with hash 2089257620, now seen corresponding path program 1 times [2022-11-20 10:38:18,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:38:18,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923563046] [2022-11-20 10:38:18,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:38:18,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:38:18,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:18,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:38:18,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:38:18,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923563046] [2022-11-20 10:38:18,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923563046] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:38:18,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:38:18,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:38:18,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564962605] [2022-11-20 10:38:18,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:38:18,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:38:18,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:38:18,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:38:18,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:38:18,104 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 366 [2022-11-20 10:38:18,105 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 242 transitions, 543 flow. Second operand has 3 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:18,105 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:38:18,105 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 366 [2022-11-20 10:38:18,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:38:22,037 INFO L130 PetriNetUnfolder]: 12680/23833 cut-off events. [2022-11-20 10:38:22,037 INFO L131 PetriNetUnfolder]: For 5399/5491 co-relation queries the response was YES. [2022-11-20 10:38:22,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50964 conditions, 23833 events. 12680/23833 cut-off events. For 5399/5491 co-relation queries the response was YES. Maximal size of possible extension queue 690. Compared 199513 event pairs, 4083 based on Foata normal form. 0/23447 useless extension candidates. Maximal degree in co-relation 41413. Up to 10068 conditions per place. [2022-11-20 10:38:22,200 INFO L137 encePairwiseOnDemand]: 360/366 looper letters, 101 selfloop transitions, 5 changer transitions 0/292 dead transitions. [2022-11-20 10:38:22,200 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 292 transitions, 908 flow [2022-11-20 10:38:22,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:38:22,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:38:22,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 753 transitions. [2022-11-20 10:38:22,203 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6857923497267759 [2022-11-20 10:38:22,204 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 753 transitions. [2022-11-20 10:38:22,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 753 transitions. [2022-11-20 10:38:22,204 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:38:22,205 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 753 transitions. [2022-11-20 10:38:22,206 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 251.0) internal successors, (753), 3 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:22,209 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:22,209 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:22,210 INFO L175 Difference]: Start difference. First operand has 236 places, 242 transitions, 543 flow. Second operand 3 states and 753 transitions. [2022-11-20 10:38:22,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 292 transitions, 908 flow [2022-11-20 10:38:22,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 292 transitions, 890 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:38:22,222 INFO L231 Difference]: Finished difference. Result has 237 places, 245 transitions, 567 flow [2022-11-20 10:38:22,222 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=531, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=567, PETRI_PLACES=237, PETRI_TRANSITIONS=245} [2022-11-20 10:38:22,223 INFO L288 CegarLoopForPetriNet]: 346 programPoint places, -109 predicate places. [2022-11-20 10:38:22,223 INFO L495 AbstractCegarLoop]: Abstraction has has 237 places, 245 transitions, 567 flow [2022-11-20 10:38:22,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:22,224 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:38:22,224 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:38:22,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 10:38:22,225 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 206 more)] === [2022-11-20 10:38:22,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:38:22,225 INFO L85 PathProgramCache]: Analyzing trace with hash 2026543130, now seen corresponding path program 1 times [2022-11-20 10:38:22,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:38:22,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812316220] [2022-11-20 10:38:22,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:38:22,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:38:22,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:22,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:38:22,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:38:22,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812316220] [2022-11-20 10:38:22,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812316220] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:38:22,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:38:22,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:38:22,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876432753] [2022-11-20 10:38:22,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:38:22,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:38:22,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:38:22,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:38:22,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:38:22,280 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 366 [2022-11-20 10:38:22,281 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 245 transitions, 567 flow. Second operand has 3 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:22,281 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:38:22,281 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 366 [2022-11-20 10:38:22,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:38:28,128 INFO L130 PetriNetUnfolder]: 18404/35373 cut-off events. [2022-11-20 10:38:28,128 INFO L131 PetriNetUnfolder]: For 9719/9829 co-relation queries the response was YES. [2022-11-20 10:38:28,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77528 conditions, 35373 events. 18404/35373 cut-off events. For 9719/9829 co-relation queries the response was YES. Maximal size of possible extension queue 1147. Compared 323808 event pairs, 5924 based on Foata normal form. 0/34746 useless extension candidates. Maximal degree in co-relation 62175. Up to 14667 conditions per place. [2022-11-20 10:38:28,356 INFO L137 encePairwiseOnDemand]: 360/366 looper letters, 109 selfloop transitions, 5 changer transitions 0/299 dead transitions. [2022-11-20 10:38:28,357 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 299 transitions, 972 flow [2022-11-20 10:38:28,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:38:28,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:38:28,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 753 transitions. [2022-11-20 10:38:28,360 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6857923497267759 [2022-11-20 10:38:28,360 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 753 transitions. [2022-11-20 10:38:28,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 753 transitions. [2022-11-20 10:38:28,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:38:28,361 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 753 transitions. [2022-11-20 10:38:28,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 251.0) internal successors, (753), 3 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:28,365 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:28,366 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:28,366 INFO L175 Difference]: Start difference. First operand has 237 places, 245 transitions, 567 flow. Second operand 3 states and 753 transitions. [2022-11-20 10:38:28,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 299 transitions, 972 flow [2022-11-20 10:38:28,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 299 transitions, 954 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:38:28,388 INFO L231 Difference]: Finished difference. Result has 238 places, 248 transitions, 591 flow [2022-11-20 10:38:28,389 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=555, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=591, PETRI_PLACES=238, PETRI_TRANSITIONS=248} [2022-11-20 10:38:28,390 INFO L288 CegarLoopForPetriNet]: 346 programPoint places, -108 predicate places. [2022-11-20 10:38:28,390 INFO L495 AbstractCegarLoop]: Abstraction has has 238 places, 248 transitions, 591 flow [2022-11-20 10:38:28,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:28,392 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:38:28,392 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:38:28,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 10:38:28,393 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 206 more)] === [2022-11-20 10:38:28,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:38:28,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1883576792, now seen corresponding path program 1 times [2022-11-20 10:38:28,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:38:28,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591601075] [2022-11-20 10:38:28,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:38:28,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:38:28,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:28,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:38:28,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:38:28,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591601075] [2022-11-20 10:38:28,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591601075] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:38:28,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:38:28,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:38:28,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298392878] [2022-11-20 10:38:28,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:38:28,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:38:28,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:38:28,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:38:28,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:38:28,442 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 366 [2022-11-20 10:38:28,443 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 248 transitions, 591 flow. Second operand has 3 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:28,443 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:38:28,443 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 366 [2022-11-20 10:38:28,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand