./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-commit-2.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_6a54d5c4-35aa-42fe-ab55-3ca74c2355fa/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a54d5c4-35aa-42fe-ab55-3ca74c2355fa/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_6a54d5c4-35aa-42fe-ab55-3ca74c2355fa/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a54d5c4-35aa-42fe-ab55-3ca74c2355fa/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-commit-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a54d5c4-35aa-42fe-ab55-3ca74c2355fa/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_6a54d5c4-35aa-42fe-ab55-3ca74c2355fa/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 f484a00c18d1df7ceedc12992e35584262ebeacdaf88de41be4bc57f4fb5401d --- 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 10:40:46,515 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:40:46,517 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:40:46,561 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:40:46,562 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:40:46,563 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:40:46,565 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:40:46,567 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:40:46,577 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:40:46,584 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:40:46,585 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:40:46,586 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:40:46,587 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:40:46,588 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:40:46,589 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:40:46,590 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:40:46,591 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:40:46,592 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:40:46,594 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:40:46,607 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:40:46,613 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:40:46,616 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:40:46,619 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:40:46,620 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:40:46,629 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:40:46,632 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:40:46,632 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:40:46,633 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:40:46,633 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:40:46,634 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:40:46,635 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:40:46,636 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:40:46,636 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:40:46,637 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:40:46,638 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:40:46,638 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:40:46,639 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:40:46,639 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:40:46,640 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:40:46,641 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:40:46,641 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:40:46,642 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a54d5c4-35aa-42fe-ab55-3ca74c2355fa/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 10:40:46,666 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:40:46,666 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:40:46,668 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:40:46,668 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:40:46,669 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:40:46,669 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:40:46,679 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:40:46,680 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:40:46,680 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:40:46,680 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:40:46,681 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:40:46,682 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 10:40:46,682 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:40:46,682 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:40:46,683 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:40:46,683 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:40:46,683 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:40:46,683 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:40:46,684 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 10:40:46,684 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:40:46,684 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:40:46,684 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:40:46,684 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:40:46,685 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:40:46,685 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:40:46,685 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:40:46,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:40:46,686 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:40:46,687 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:40:46,687 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:40:46,687 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:40:46,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:40:46,688 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:40:46,688 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:40:46,688 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:40:46,689 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_6a54d5c4-35aa-42fe-ab55-3ca74c2355fa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a54d5c4-35aa-42fe-ab55-3ca74c2355fa/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f484a00c18d1df7ceedc12992e35584262ebeacdaf88de41be4bc57f4fb5401d [2022-11-20 10:40:47,022 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:40:47,061 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:40:47,064 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:40:47,066 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:40:47,066 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:40:47,068 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a54d5c4-35aa-42fe-ab55-3ca74c2355fa/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/weaver/popl20-commit-2.wvr.c [2022-11-20 10:40:50,472 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:40:50,842 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:40:50,845 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a54d5c4-35aa-42fe-ab55-3ca74c2355fa/sv-benchmarks/c/weaver/popl20-commit-2.wvr.c [2022-11-20 10:40:50,857 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a54d5c4-35aa-42fe-ab55-3ca74c2355fa/bin/uautomizer-ug76WZFUDN/data/b12e39dd0/386e36b1eb4340e094c64c3e200f5829/FLAG447752d48 [2022-11-20 10:40:50,883 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a54d5c4-35aa-42fe-ab55-3ca74c2355fa/bin/uautomizer-ug76WZFUDN/data/b12e39dd0/386e36b1eb4340e094c64c3e200f5829 [2022-11-20 10:40:50,890 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:40:50,892 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:40:50,897 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:40:50,897 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:40:50,902 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:40:50,903 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:40:50" (1/1) ... [2022-11-20 10:40:50,904 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e170d38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:40:50, skipping insertion in model container [2022-11-20 10:40:50,904 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:40:50" (1/1) ... [2022-11-20 10:40:50,914 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:40:50,958 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:40:51,286 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_6a54d5c4-35aa-42fe-ab55-3ca74c2355fa/sv-benchmarks/c/weaver/popl20-commit-2.wvr.c[5846,5859] [2022-11-20 10:40:51,293 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:40:51,305 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:40:51,379 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_6a54d5c4-35aa-42fe-ab55-3ca74c2355fa/sv-benchmarks/c/weaver/popl20-commit-2.wvr.c[5846,5859] [2022-11-20 10:40:51,384 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:40:51,408 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:40:51,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:40:51 WrapperNode [2022-11-20 10:40:51,408 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:40:51,409 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:40:51,410 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:40:51,410 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:40:51,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:40:51" (1/1) ... [2022-11-20 10:40:51,440 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:40:51" (1/1) ... [2022-11-20 10:40:51,509 INFO L138 Inliner]: procedures = 26, calls = 93, calls flagged for inlining = 27, calls inlined = 33, statements flattened = 1006 [2022-11-20 10:40:51,510 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:40:51,511 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:40:51,511 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:40:51,511 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:40:51,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:40:51" (1/1) ... [2022-11-20 10:40:51,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:40:51" (1/1) ... [2022-11-20 10:40:51,548 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:40:51" (1/1) ... [2022-11-20 10:40:51,548 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:40:51" (1/1) ... [2022-11-20 10:40:51,582 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:40:51" (1/1) ... [2022-11-20 10:40:51,590 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:40:51" (1/1) ... [2022-11-20 10:40:51,595 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:40:51" (1/1) ... [2022-11-20 10:40:51,599 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:40:51" (1/1) ... [2022-11-20 10:40:51,607 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:40:51,608 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:40:51,608 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:40:51,609 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:40:51,610 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:40:51" (1/1) ... [2022-11-20 10:40:51,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:40:51,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a54d5c4-35aa-42fe-ab55-3ca74c2355fa/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:40:51,645 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a54d5c4-35aa-42fe-ab55-3ca74c2355fa/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:40:51,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a54d5c4-35aa-42fe-ab55-3ca74c2355fa/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:40:51,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:40:51,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:40:51,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 10:40:51,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 10:40:51,710 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 10:40:51,712 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 10:40:51,713 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 10:40:51,713 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 10:40:51,714 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-20 10:40:51,714 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-20 10:40:51,714 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-20 10:40:51,714 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-20 10:40:51,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:40:51,715 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 10:40:51,715 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 10:40:51,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 10:40:51,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:40:51,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:40:51,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:40:51,719 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 10:40:51,934 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:40:51,949 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:40:53,860 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:40:55,194 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:40:55,195 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-20 10:40:55,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:40:55 BoogieIcfgContainer [2022-11-20 10:40:55,198 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:40:55,201 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:40:55,201 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:40:55,205 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:40:55,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:40:50" (1/3) ... [2022-11-20 10:40:55,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d5a78b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:40:55, skipping insertion in model container [2022-11-20 10:40:55,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:40:51" (2/3) ... [2022-11-20 10:40:55,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d5a78b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:40:55, skipping insertion in model container [2022-11-20 10:40:55,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:40:55" (3/3) ... [2022-11-20 10:40:55,210 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-commit-2.wvr.c [2022-11-20 10:40:55,222 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 10:40:55,235 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:40:55,236 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 168 error locations. [2022-11-20 10:40:55,236 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 10:40:55,627 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-20 10:40:55,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 625 places, 637 transitions, 1306 flow [2022-11-20 10:40:56,053 INFO L130 PetriNetUnfolder]: 25/633 cut-off events. [2022-11-20 10:40:56,053 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-20 10:40:56,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 650 conditions, 633 events. 25/633 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1101 event pairs, 0 based on Foata normal form. 0/440 useless extension candidates. Maximal degree in co-relation 545. Up to 2 conditions per place. [2022-11-20 10:40:56,064 INFO L82 GeneralOperation]: Start removeDead. Operand has 625 places, 637 transitions, 1306 flow [2022-11-20 10:40:56,081 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 600 places, 611 transitions, 1246 flow [2022-11-20 10:40:56,100 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:40:56,109 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;@4fb9cb89, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:40:56,109 INFO L358 AbstractCegarLoop]: Starting to check reachability of 304 error locations. [2022-11-20 10:40:56,115 INFO L130 PetriNetUnfolder]: 0/38 cut-off events. [2022-11-20 10:40:56,116 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 10:40:56,116 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:40:56,117 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] [2022-11-20 10:40:56,118 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-20 10:40:56,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:56,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1195253246, now seen corresponding path program 1 times [2022-11-20 10:40:56,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:40:56,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367655164] [2022-11-20 10:40:56,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:56,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:40:56,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:56,510 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 10:40:56,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:40:56,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367655164] [2022-11-20 10:40:56,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367655164] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:56,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:56,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:40:56,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521763189] [2022-11-20 10:40:56,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:56,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:40:56,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:40:56,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:40:56,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:40:56,571 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 458 out of 637 [2022-11-20 10:40:56,584 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 600 places, 611 transitions, 1246 flow. Second operand has 3 states, 3 states have (on average 459.3333333333333) internal successors, (1378), 3 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states 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 10:40:56,585 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:40:56,585 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 458 of 637 [2022-11-20 10:40:56,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:40:57,635 INFO L130 PetriNetUnfolder]: 285/828 cut-off events. [2022-11-20 10:40:57,635 INFO L131 PetriNetUnfolder]: For 104/124 co-relation queries the response was YES. [2022-11-20 10:40:57,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1328 conditions, 828 events. 285/828 cut-off events. For 104/124 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1701 event pairs, 147 based on Foata normal form. 146/902 useless extension candidates. Maximal degree in co-relation 843. Up to 392 conditions per place. [2022-11-20 10:40:57,645 INFO L137 encePairwiseOnDemand]: 486/637 looper letters, 25 selfloop transitions, 2 changer transitions 8/462 dead transitions. [2022-11-20 10:40:57,646 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 469 places, 462 transitions, 1002 flow [2022-11-20 10:40:57,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:40:57,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:40:57,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1550 transitions. [2022-11-20 10:40:57,676 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8110936682365254 [2022-11-20 10:40:57,677 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1550 transitions. [2022-11-20 10:40:57,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1550 transitions. [2022-11-20 10:40:57,682 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:40:57,685 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1550 transitions. [2022-11-20 10:40:57,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 516.6666666666666) internal successors, (1550), 3 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states 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 10:40:57,711 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:40:57,713 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:40:57,716 INFO L175 Difference]: Start difference. First operand has 600 places, 611 transitions, 1246 flow. Second operand 3 states and 1550 transitions. [2022-11-20 10:40:57,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 469 places, 462 transitions, 1002 flow [2022-11-20 10:40:57,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 461 places, 462 transitions, 986 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-11-20 10:40:57,743 INFO L231 Difference]: Finished difference. Result has 461 places, 454 transitions, 920 flow [2022-11-20 10:40:57,746 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=932, PETRI_DIFFERENCE_MINUEND_PLACES=459, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=462, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=460, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=920, PETRI_PLACES=461, PETRI_TRANSITIONS=454} [2022-11-20 10:40:57,753 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -139 predicate places. [2022-11-20 10:40:57,753 INFO L495 AbstractCegarLoop]: Abstraction has has 461 places, 454 transitions, 920 flow [2022-11-20 10:40:57,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 459.3333333333333) internal successors, (1378), 3 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states 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 10:40:57,755 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:40:57,755 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] [2022-11-20 10:40:57,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 10:40:57,756 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-20 10:40:57,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:57,757 INFO L85 PathProgramCache]: Analyzing trace with hash -645404742, now seen corresponding path program 1 times [2022-11-20 10:40:57,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:40:57,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301236068] [2022-11-20 10:40:57,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:57,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:40:57,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:57,924 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 10:40:57,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:40:57,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301236068] [2022-11-20 10:40:57,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301236068] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:57,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:57,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:40:57,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720698784] [2022-11-20 10:40:57,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:57,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:40:57,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:40:57,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:40:57,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:40:57,934 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 458 out of 637 [2022-11-20 10:40:57,936 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 461 places, 454 transitions, 920 flow. Second operand has 3 states, 3 states have (on average 459.3333333333333) internal successors, (1378), 3 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states 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 10:40:57,937 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:40:57,937 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 458 of 637 [2022-11-20 10:40:57,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:40:58,510 INFO L130 PetriNetUnfolder]: 285/819 cut-off events. [2022-11-20 10:40:58,511 INFO L131 PetriNetUnfolder]: For 15/35 co-relation queries the response was YES. [2022-11-20 10:40:58,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1261 conditions, 819 events. 285/819 cut-off events. For 15/35 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1701 event pairs, 147 based on Foata normal form. 0/756 useless extension candidates. Maximal degree in co-relation 1215. Up to 393 conditions per place. [2022-11-20 10:40:58,519 INFO L137 encePairwiseOnDemand]: 634/637 looper letters, 26 selfloop transitions, 2 changer transitions 0/453 dead transitions. [2022-11-20 10:40:58,519 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 453 transitions, 974 flow [2022-11-20 10:40:58,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:40:58,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:40:58,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1403 transitions. [2022-11-20 10:40:58,524 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7341705913134484 [2022-11-20 10:40:58,524 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1403 transitions. [2022-11-20 10:40:58,525 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1403 transitions. [2022-11-20 10:40:58,526 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:40:58,526 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1403 transitions. [2022-11-20 10:40:58,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 467.6666666666667) internal successors, (1403), 3 states have internal predecessors, (1403), 0 states have call successors, (0), 0 states 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 10:40:58,536 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:40:58,538 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:40:58,538 INFO L175 Difference]: Start difference. First operand has 461 places, 454 transitions, 920 flow. Second operand 3 states and 1403 transitions. [2022-11-20 10:40:58,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 453 transitions, 974 flow [2022-11-20 10:40:58,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 452 places, 453 transitions, 970 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:40:58,550 INFO L231 Difference]: Finished difference. Result has 452 places, 453 transitions, 918 flow [2022-11-20 10:40:58,551 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=914, PETRI_DIFFERENCE_MINUEND_PLACES=450, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=453, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=451, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=918, PETRI_PLACES=452, PETRI_TRANSITIONS=453} [2022-11-20 10:40:58,552 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -148 predicate places. [2022-11-20 10:40:58,552 INFO L495 AbstractCegarLoop]: Abstraction has has 452 places, 453 transitions, 918 flow [2022-11-20 10:40:58,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 459.3333333333333) internal successors, (1378), 3 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states 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 10:40:58,554 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:40:58,554 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] [2022-11-20 10:40:58,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 10:40:58,555 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-20 10:40:58,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:58,555 INFO L85 PathProgramCache]: Analyzing trace with hash 25837692, now seen corresponding path program 1 times [2022-11-20 10:40:58,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:40:58,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675961702] [2022-11-20 10:40:58,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:58,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:40:58,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:58,649 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 10:40:58,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:40:58,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675961702] [2022-11-20 10:40:58,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675961702] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:58,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:58,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:40:58,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82707642] [2022-11-20 10:40:58,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:58,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:40:58,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:40:58,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:40:58,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:40:58,658 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 458 out of 637 [2022-11-20 10:40:58,661 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 452 places, 453 transitions, 918 flow. Second operand has 3 states, 3 states have (on average 459.3333333333333) internal successors, (1378), 3 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states 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 10:40:58,661 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:40:58,662 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 458 of 637 [2022-11-20 10:40:58,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:40:59,251 INFO L130 PetriNetUnfolder]: 285/818 cut-off events. [2022-11-20 10:40:59,252 INFO L131 PetriNetUnfolder]: For 15/35 co-relation queries the response was YES. [2022-11-20 10:40:59,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1260 conditions, 818 events. 285/818 cut-off events. For 15/35 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1689 event pairs, 147 based on Foata normal form. 0/756 useless extension candidates. Maximal degree in co-relation 1207. Up to 393 conditions per place. [2022-11-20 10:40:59,260 INFO L137 encePairwiseOnDemand]: 634/637 looper letters, 26 selfloop transitions, 2 changer transitions 0/452 dead transitions. [2022-11-20 10:40:59,262 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 453 places, 452 transitions, 972 flow [2022-11-20 10:40:59,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:40:59,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:40:59,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1403 transitions. [2022-11-20 10:40:59,268 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7341705913134484 [2022-11-20 10:40:59,268 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1403 transitions. [2022-11-20 10:40:59,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1403 transitions. [2022-11-20 10:40:59,270 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:40:59,270 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1403 transitions. [2022-11-20 10:40:59,275 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 467.6666666666667) internal successors, (1403), 3 states have internal predecessors, (1403), 0 states have call successors, (0), 0 states 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 10:40:59,281 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:40:59,283 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:40:59,284 INFO L175 Difference]: Start difference. First operand has 452 places, 453 transitions, 918 flow. Second operand 3 states and 1403 transitions. [2022-11-20 10:40:59,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 453 places, 452 transitions, 972 flow [2022-11-20 10:40:59,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 451 places, 452 transitions, 968 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:40:59,298 INFO L231 Difference]: Finished difference. Result has 451 places, 452 transitions, 916 flow [2022-11-20 10:40:59,299 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=912, PETRI_DIFFERENCE_MINUEND_PLACES=449, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=452, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=450, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=916, PETRI_PLACES=451, PETRI_TRANSITIONS=452} [2022-11-20 10:40:59,302 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -149 predicate places. [2022-11-20 10:40:59,302 INFO L495 AbstractCegarLoop]: Abstraction has has 451 places, 452 transitions, 916 flow [2022-11-20 10:40:59,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 459.3333333333333) internal successors, (1378), 3 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states 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 10:40:59,304 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:40:59,305 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:40:59,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 10:40:59,305 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-20 10:40:59,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:59,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1091408893, now seen corresponding path program 1 times [2022-11-20 10:40:59,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:40:59,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087270322] [2022-11-20 10:40:59,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:59,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:40:59,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:59,389 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 10:40:59,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:40:59,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087270322] [2022-11-20 10:40:59,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087270322] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:59,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:59,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:40:59,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034586439] [2022-11-20 10:40:59,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:59,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:40:59,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:40:59,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:40:59,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:40:59,397 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 637 [2022-11-20 10:40:59,400 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 451 places, 452 transitions, 916 flow. Second operand has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 10:40:59,400 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:40:59,401 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 637 [2022-11-20 10:40:59,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:41:00,095 INFO L130 PetriNetUnfolder]: 360/1052 cut-off events. [2022-11-20 10:41:00,095 INFO L131 PetriNetUnfolder]: For 31/43 co-relation queries the response was YES. [2022-11-20 10:41:00,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1602 conditions, 1052 events. 360/1052 cut-off events. For 31/43 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 3009 event pairs, 174 based on Foata normal form. 0/950 useless extension candidates. Maximal degree in co-relation 1541. Up to 403 conditions per place. [2022-11-20 10:41:00,104 INFO L137 encePairwiseOnDemand]: 634/637 looper letters, 36 selfloop transitions, 2 changer transitions 0/465 dead transitions. [2022-11-20 10:41:00,104 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 452 places, 465 transitions, 1025 flow [2022-11-20 10:41:00,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:41:00,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:41:00,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1422 transitions. [2022-11-20 10:41:00,109 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7441130298273155 [2022-11-20 10:41:00,109 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1422 transitions. [2022-11-20 10:41:00,109 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1422 transitions. [2022-11-20 10:41:00,110 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:41:00,110 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1422 transitions. [2022-11-20 10:41:00,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 474.0) internal successors, (1422), 3 states have internal predecessors, (1422), 0 states have call successors, (0), 0 states 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 10:41:00,118 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:41:00,120 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:41:00,120 INFO L175 Difference]: Start difference. First operand has 451 places, 452 transitions, 916 flow. Second operand 3 states and 1422 transitions. [2022-11-20 10:41:00,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 452 places, 465 transitions, 1025 flow [2022-11-20 10:41:00,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 450 places, 465 transitions, 1021 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:41:00,130 INFO L231 Difference]: Finished difference. Result has 451 places, 452 transitions, 920 flow [2022-11-20 10:41:00,131 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=910, PETRI_DIFFERENCE_MINUEND_PLACES=448, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=451, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=449, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=920, PETRI_PLACES=451, PETRI_TRANSITIONS=452} [2022-11-20 10:41:00,132 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -149 predicate places. [2022-11-20 10:41:00,132 INFO L495 AbstractCegarLoop]: Abstraction has has 451 places, 452 transitions, 920 flow [2022-11-20 10:41:00,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 10:41:00,134 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:41:00,134 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] [2022-11-20 10:41:00,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 10:41:00,134 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-20 10:41:00,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:41:00,135 INFO L85 PathProgramCache]: Analyzing trace with hash -314169241, now seen corresponding path program 1 times [2022-11-20 10:41:00,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:41:00,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142689753] [2022-11-20 10:41:00,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:00,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:41:00,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:00,187 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 10:41:00,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:41:00,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142689753] [2022-11-20 10:41:00,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142689753] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:41:00,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:41:00,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:41:00,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048594282] [2022-11-20 10:41:00,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:41:00,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:41:00,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:41:00,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:41:00,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:41:00,192 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 637 [2022-11-20 10:41:00,194 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 451 places, 452 transitions, 920 flow. Second operand has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 10:41:00,195 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:41:00,195 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 637 [2022-11-20 10:41:00,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:41:00,825 INFO L130 PetriNetUnfolder]: 360/1014 cut-off events. [2022-11-20 10:41:00,825 INFO L131 PetriNetUnfolder]: For 61/88 co-relation queries the response was YES. [2022-11-20 10:41:00,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1610 conditions, 1014 events. 360/1014 cut-off events. For 61/88 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2739 event pairs, 188 based on Foata normal form. 0/935 useless extension candidates. Maximal degree in co-relation 569. Up to 495 conditions per place. [2022-11-20 10:41:00,835 INFO L137 encePairwiseOnDemand]: 634/637 looper letters, 24 selfloop transitions, 2 changer transitions 0/451 dead transitions. [2022-11-20 10:41:00,835 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 452 places, 451 transitions, 970 flow [2022-11-20 10:41:00,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:41:00,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:41:00,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1409 transitions. [2022-11-20 10:41:00,840 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7373103087388801 [2022-11-20 10:41:00,840 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1409 transitions. [2022-11-20 10:41:00,840 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1409 transitions. [2022-11-20 10:41:00,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:41:00,842 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1409 transitions. [2022-11-20 10:41:00,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 469.6666666666667) internal successors, (1409), 3 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states 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 10:41:00,850 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:41:00,853 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:41:00,854 INFO L175 Difference]: Start difference. First operand has 451 places, 452 transitions, 920 flow. Second operand 3 states and 1409 transitions. [2022-11-20 10:41:00,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 452 places, 451 transitions, 970 flow [2022-11-20 10:41:00,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 451 places, 451 transitions, 968 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 10:41:00,868 INFO L231 Difference]: Finished difference. Result has 451 places, 451 transitions, 920 flow [2022-11-20 10:41:00,869 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=916, PETRI_DIFFERENCE_MINUEND_PLACES=449, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=451, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=449, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=920, PETRI_PLACES=451, PETRI_TRANSITIONS=451} [2022-11-20 10:41:00,871 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -149 predicate places. [2022-11-20 10:41:00,871 INFO L495 AbstractCegarLoop]: Abstraction has has 451 places, 451 transitions, 920 flow [2022-11-20 10:41:00,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 10:41:00,874 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:41:00,874 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:41:00,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 10:41:00,874 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-20 10:41:00,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:41:00,875 INFO L85 PathProgramCache]: Analyzing trace with hash -679353610, now seen corresponding path program 1 times [2022-11-20 10:41:00,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:41:00,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702101933] [2022-11-20 10:41:00,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:00,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:41:00,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:00,927 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 10:41:00,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:41:00,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702101933] [2022-11-20 10:41:00,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702101933] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:41:00,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:41:00,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:41:00,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073046976] [2022-11-20 10:41:00,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:41:00,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:41:00,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:41:00,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:41:00,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:41:00,932 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 637 [2022-11-20 10:41:00,934 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 451 places, 451 transitions, 920 flow. Second operand has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 10:41:00,934 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:41:00,934 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 637 [2022-11-20 10:41:00,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:41:01,493 INFO L130 PetriNetUnfolder]: 360/1013 cut-off events. [2022-11-20 10:41:01,494 INFO L131 PetriNetUnfolder]: For 60/87 co-relation queries the response was YES. [2022-11-20 10:41:01,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1595 conditions, 1013 events. 360/1013 cut-off events. For 60/87 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2736 event pairs, 188 based on Foata normal form. 0/935 useless extension candidates. Maximal degree in co-relation 1525. Up to 493 conditions per place. [2022-11-20 10:41:01,503 INFO L137 encePairwiseOnDemand]: 635/637 looper letters, 24 selfloop transitions, 1 changer transitions 0/450 dead transitions. [2022-11-20 10:41:01,503 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 452 places, 450 transitions, 968 flow [2022-11-20 10:41:01,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:41:01,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:41:01,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1408 transitions. [2022-11-20 10:41:01,508 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7367870225013082 [2022-11-20 10:41:01,508 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1408 transitions. [2022-11-20 10:41:01,508 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1408 transitions. [2022-11-20 10:41:01,509 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:41:01,509 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1408 transitions. [2022-11-20 10:41:01,513 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 469.3333333333333) internal successors, (1408), 3 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:41:01,517 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:41:01,519 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:41:01,520 INFO L175 Difference]: Start difference. First operand has 451 places, 451 transitions, 920 flow. Second operand 3 states and 1408 transitions. [2022-11-20 10:41:01,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 452 places, 450 transitions, 968 flow [2022-11-20 10:41:01,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 450 places, 450 transitions, 964 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:41:01,529 INFO L231 Difference]: Finished difference. Result has 450 places, 450 transitions, 916 flow [2022-11-20 10:41:01,530 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=914, PETRI_DIFFERENCE_MINUEND_PLACES=448, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=450, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=449, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=916, PETRI_PLACES=450, PETRI_TRANSITIONS=450} [2022-11-20 10:41:01,530 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -150 predicate places. [2022-11-20 10:41:01,531 INFO L495 AbstractCegarLoop]: Abstraction has has 450 places, 450 transitions, 916 flow [2022-11-20 10:41:01,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 10:41:01,532 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:41:01,532 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] [2022-11-20 10:41:01,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 10:41:01,533 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-20 10:41:01,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:41:01,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1476213169, now seen corresponding path program 1 times [2022-11-20 10:41:01,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:41:01,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061516700] [2022-11-20 10:41:01,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:01,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:41:01,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:01,595 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 10:41:01,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:41:01,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061516700] [2022-11-20 10:41:01,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061516700] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:41:01,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:41:01,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:41:01,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717514473] [2022-11-20 10:41:01,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:41:01,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:41:01,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:41:01,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:41:01,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:41:01,600 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 637 [2022-11-20 10:41:01,602 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 450 transitions, 916 flow. Second operand has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 10:41:01,602 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:41:01,602 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 637 [2022-11-20 10:41:01,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:41:02,261 INFO L130 PetriNetUnfolder]: 360/1012 cut-off events. [2022-11-20 10:41:02,262 INFO L131 PetriNetUnfolder]: For 60/87 co-relation queries the response was YES. [2022-11-20 10:41:02,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1594 conditions, 1012 events. 360/1012 cut-off events. For 60/87 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2722 event pairs, 188 based on Foata normal form. 0/935 useless extension candidates. Maximal degree in co-relation 1525. Up to 495 conditions per place. [2022-11-20 10:41:02,272 INFO L137 encePairwiseOnDemand]: 634/637 looper letters, 24 selfloop transitions, 2 changer transitions 0/449 dead transitions. [2022-11-20 10:41:02,272 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 449 transitions, 966 flow [2022-11-20 10:41:02,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:41:02,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:41:02,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1409 transitions. [2022-11-20 10:41:02,277 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7373103087388801 [2022-11-20 10:41:02,277 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1409 transitions. [2022-11-20 10:41:02,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1409 transitions. [2022-11-20 10:41:02,278 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:41:02,278 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1409 transitions. [2022-11-20 10:41:02,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 469.6666666666667) internal successors, (1409), 3 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states 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 10:41:02,287 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:41:02,288 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:41:02,288 INFO L175 Difference]: Start difference. First operand has 450 places, 450 transitions, 916 flow. Second operand 3 states and 1409 transitions. [2022-11-20 10:41:02,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 449 transitions, 966 flow [2022-11-20 10:41:02,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 450 places, 449 transitions, 965 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 10:41:02,299 INFO L231 Difference]: Finished difference. Result has 450 places, 449 transitions, 917 flow [2022-11-20 10:41:02,300 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=913, PETRI_DIFFERENCE_MINUEND_PLACES=448, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=449, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=447, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=917, PETRI_PLACES=450, PETRI_TRANSITIONS=449} [2022-11-20 10:41:02,301 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -150 predicate places. [2022-11-20 10:41:02,301 INFO L495 AbstractCegarLoop]: Abstraction has has 450 places, 449 transitions, 917 flow [2022-11-20 10:41:02,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 10:41:02,302 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:41:02,302 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] [2022-11-20 10:41:02,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 10:41:02,303 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-20 10:41:02,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:41:02,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1878337448, now seen corresponding path program 1 times [2022-11-20 10:41:02,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:41:02,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400337659] [2022-11-20 10:41:02,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:02,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:41:02,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:03,050 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 10:41:03,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:41:03,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400337659] [2022-11-20 10:41:03,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400337659] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:41:03,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:41:03,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:41:03,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381823047] [2022-11-20 10:41:03,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:41:03,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:41:03,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:41:03,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:41:03,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:41:03,056 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 375 out of 637 [2022-11-20 10:41:03,059 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 449 transitions, 917 flow. Second operand has 6 states, 6 states have (on average 376.8333333333333) internal successors, (2261), 6 states have internal predecessors, (2261), 0 states have call successors, (0), 0 states 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 10:41:03,059 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:41:03,060 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 375 of 637 [2022-11-20 10:41:03,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:41:05,804 INFO L130 PetriNetUnfolder]: 2112/3248 cut-off events. [2022-11-20 10:41:05,804 INFO L131 PetriNetUnfolder]: For 126/126 co-relation queries the response was YES. [2022-11-20 10:41:05,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6243 conditions, 3248 events. 2112/3248 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 11715 event pairs, 1184 based on Foata normal form. 0/3111 useless extension candidates. Maximal degree in co-relation 6175. Up to 2792 conditions per place. [2022-11-20 10:41:05,836 INFO L137 encePairwiseOnDemand]: 613/637 looper letters, 89 selfloop transitions, 20 changer transitions 0/445 dead transitions. [2022-11-20 10:41:05,837 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 445 transitions, 1127 flow [2022-11-20 10:41:05,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:41:05,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 10:41:05,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2362 transitions. [2022-11-20 10:41:05,844 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6180010465724751 [2022-11-20 10:41:05,844 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2362 transitions. [2022-11-20 10:41:05,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2362 transitions. [2022-11-20 10:41:05,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:41:05,846 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2362 transitions. [2022-11-20 10:41:05,852 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 393.6666666666667) internal successors, (2362), 6 states have internal predecessors, (2362), 0 states have call successors, (0), 0 states 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 10:41:05,859 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 637.0) internal successors, (4459), 7 states have internal predecessors, (4459), 0 states have call successors, (0), 0 states 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 10:41:05,861 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 637.0) internal successors, (4459), 7 states have internal predecessors, (4459), 0 states have call successors, (0), 0 states 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 10:41:05,861 INFO L175 Difference]: Start difference. First operand has 450 places, 449 transitions, 917 flow. Second operand 6 states and 2362 transitions. [2022-11-20 10:41:05,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 445 transitions, 1127 flow [2022-11-20 10:41:05,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 449 places, 445 transitions, 1123 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:41:05,872 INFO L231 Difference]: Finished difference. Result has 449 places, 445 transitions, 945 flow [2022-11-20 10:41:05,872 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=905, PETRI_DIFFERENCE_MINUEND_PLACES=444, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=445, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=945, PETRI_PLACES=449, PETRI_TRANSITIONS=445} [2022-11-20 10:41:05,873 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -151 predicate places. [2022-11-20 10:41:05,873 INFO L495 AbstractCegarLoop]: Abstraction has has 449 places, 445 transitions, 945 flow [2022-11-20 10:41:05,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 376.8333333333333) internal successors, (2261), 6 states have internal predecessors, (2261), 0 states have call successors, (0), 0 states 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 10:41:05,875 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:41:05,875 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] [2022-11-20 10:41:05,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 10:41:05,876 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-20 10:41:05,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:41:05,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1289176591, now seen corresponding path program 1 times [2022-11-20 10:41:05,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:41:05,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628539732] [2022-11-20 10:41:05,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:05,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:41:05,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:05,958 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 10:41:05,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:41:05,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628539732] [2022-11-20 10:41:05,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628539732] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:41:05,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:41:05,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:41:05,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676666368] [2022-11-20 10:41:05,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:41:05,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:41:05,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:41:05,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:41:05,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:41:05,965 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 458 out of 637 [2022-11-20 10:41:05,967 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 445 transitions, 945 flow. Second operand has 3 states, 3 states have (on average 459.3333333333333) internal successors, (1378), 3 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states 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 10:41:05,968 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:41:05,968 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 458 of 637 [2022-11-20 10:41:05,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:41:06,576 INFO L130 PetriNetUnfolder]: 360/1007 cut-off events. [2022-11-20 10:41:06,576 INFO L131 PetriNetUnfolder]: For 60/87 co-relation queries the response was YES. [2022-11-20 10:41:06,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1612 conditions, 1007 events. 360/1007 cut-off events. For 60/87 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2740 event pairs, 188 based on Foata normal form. 0/935 useless extension candidates. Maximal degree in co-relation 1548. Up to 498 conditions per place. [2022-11-20 10:41:06,585 INFO L137 encePairwiseOnDemand]: 634/637 looper letters, 27 selfloop transitions, 2 changer transitions 0/444 dead transitions. [2022-11-20 10:41:06,586 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 450 places, 444 transitions, 1001 flow [2022-11-20 10:41:06,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:41:06,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:41:06,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1403 transitions. [2022-11-20 10:41:06,590 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7341705913134484 [2022-11-20 10:41:06,590 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1403 transitions. [2022-11-20 10:41:06,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1403 transitions. [2022-11-20 10:41:06,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:41:06,593 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1403 transitions. [2022-11-20 10:41:06,596 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 467.6666666666667) internal successors, (1403), 3 states have internal predecessors, (1403), 0 states have call successors, (0), 0 states 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 10:41:06,601 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:41:06,602 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:41:06,602 INFO L175 Difference]: Start difference. First operand has 449 places, 445 transitions, 945 flow. Second operand 3 states and 1403 transitions. [2022-11-20 10:41:06,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 450 places, 444 transitions, 1001 flow [2022-11-20 10:41:06,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 445 places, 444 transitions, 961 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 10:41:06,613 INFO L231 Difference]: Finished difference. Result has 445 places, 444 transitions, 907 flow [2022-11-20 10:41:06,614 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=903, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=444, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=442, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=907, PETRI_PLACES=445, PETRI_TRANSITIONS=444} [2022-11-20 10:41:06,615 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -155 predicate places. [2022-11-20 10:41:06,615 INFO L495 AbstractCegarLoop]: Abstraction has has 445 places, 444 transitions, 907 flow [2022-11-20 10:41:06,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 459.3333333333333) internal successors, (1378), 3 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states 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 10:41:06,616 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:41:06,616 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] [2022-11-20 10:41:06,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 10:41:06,617 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-20 10:41:06,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:41:06,617 INFO L85 PathProgramCache]: Analyzing trace with hash -368784085, now seen corresponding path program 1 times [2022-11-20 10:41:06,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:41:06,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328663539] [2022-11-20 10:41:06,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:06,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:41:06,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:06,677 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 10:41:06,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:41:06,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328663539] [2022-11-20 10:41:06,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328663539] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:41:06,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:41:06,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:41:06,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301897307] [2022-11-20 10:41:06,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:41:06,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:41:06,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:41:06,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:41:06,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:41:06,691 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 637 [2022-11-20 10:41:06,693 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 444 transitions, 907 flow. Second operand has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 10:41:06,693 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:41:06,693 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 637 [2022-11-20 10:41:06,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:41:07,687 INFO L130 PetriNetUnfolder]: 596/1586 cut-off events. [2022-11-20 10:41:07,687 INFO L131 PetriNetUnfolder]: For 107/147 co-relation queries the response was YES. [2022-11-20 10:41:07,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2507 conditions, 1586 events. 596/1586 cut-off events. For 107/147 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 6760 event pairs, 188 based on Foata normal form. 2/1465 useless extension candidates. Maximal degree in co-relation 2439. Up to 451 conditions per place. [2022-11-20 10:41:07,700 INFO L137 encePairwiseOnDemand]: 634/637 looper letters, 40 selfloop transitions, 2 changer transitions 0/460 dead transitions. [2022-11-20 10:41:07,700 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 460 transitions, 1031 flow [2022-11-20 10:41:07,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:41:07,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:41:07,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1424 transitions. [2022-11-20 10:41:07,705 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7451596023024595 [2022-11-20 10:41:07,705 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1424 transitions. [2022-11-20 10:41:07,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1424 transitions. [2022-11-20 10:41:07,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:41:07,707 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1424 transitions. [2022-11-20 10:41:07,710 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 474.6666666666667) internal successors, (1424), 3 states have internal predecessors, (1424), 0 states have call successors, (0), 0 states 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 10:41:07,713 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:41:07,714 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:41:07,715 INFO L175 Difference]: Start difference. First operand has 445 places, 444 transitions, 907 flow. Second operand 3 states and 1424 transitions. [2022-11-20 10:41:07,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 446 places, 460 transitions, 1031 flow [2022-11-20 10:41:07,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 460 transitions, 1027 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:41:07,724 INFO L231 Difference]: Finished difference. Result has 445 places, 444 transitions, 911 flow [2022-11-20 10:41:07,726 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=901, PETRI_DIFFERENCE_MINUEND_PLACES=442, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=443, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=441, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=911, PETRI_PLACES=445, PETRI_TRANSITIONS=444} [2022-11-20 10:41:07,727 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -155 predicate places. [2022-11-20 10:41:07,728 INFO L495 AbstractCegarLoop]: Abstraction has has 445 places, 444 transitions, 911 flow [2022-11-20 10:41:07,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 10:41:07,728 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:41:07,729 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:41:07,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 10:41:07,729 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-20 10:41:07,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:41:07,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1736633889, now seen corresponding path program 1 times [2022-11-20 10:41:07,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:41:07,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520210147] [2022-11-20 10:41:07,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:07,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:41:07,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:07,783 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 10:41:07,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:41:07,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520210147] [2022-11-20 10:41:07,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520210147] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:41:07,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:41:07,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:41:07,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443111782] [2022-11-20 10:41:07,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:41:07,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:41:07,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:41:07,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:41:07,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:41:07,789 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 637 [2022-11-20 10:41:07,790 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 444 transitions, 911 flow. Second operand has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 10:41:07,791 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:41:07,791 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 637 [2022-11-20 10:41:07,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:41:08,638 INFO L130 PetriNetUnfolder]: 596/1585 cut-off events. [2022-11-20 10:41:08,639 INFO L131 PetriNetUnfolder]: For 141/181 co-relation queries the response was YES. [2022-11-20 10:41:08,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2633 conditions, 1585 events. 596/1585 cut-off events. For 141/181 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 6832 event pairs, 340 based on Foata normal form. 0/1456 useless extension candidates. Maximal degree in co-relation 2563. Up to 817 conditions per place. [2022-11-20 10:41:08,659 INFO L137 encePairwiseOnDemand]: 634/637 looper letters, 25 selfloop transitions, 2 changer transitions 0/443 dead transitions. [2022-11-20 10:41:08,660 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 443 transitions, 963 flow [2022-11-20 10:41:08,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:41:08,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:41:08,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1409 transitions. [2022-11-20 10:41:08,664 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7373103087388801 [2022-11-20 10:41:08,664 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1409 transitions. [2022-11-20 10:41:08,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1409 transitions. [2022-11-20 10:41:08,666 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:41:08,666 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1409 transitions. [2022-11-20 10:41:08,669 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 469.6666666666667) internal successors, (1409), 3 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states 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 10:41:08,673 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:41:08,674 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:41:08,674 INFO L175 Difference]: Start difference. First operand has 445 places, 444 transitions, 911 flow. Second operand 3 states and 1409 transitions. [2022-11-20 10:41:08,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 446 places, 443 transitions, 963 flow [2022-11-20 10:41:08,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 445 places, 443 transitions, 961 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 10:41:08,684 INFO L231 Difference]: Finished difference. Result has 445 places, 443 transitions, 911 flow [2022-11-20 10:41:08,685 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=907, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=443, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=441, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=911, PETRI_PLACES=445, PETRI_TRANSITIONS=443} [2022-11-20 10:41:08,686 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -155 predicate places. [2022-11-20 10:41:08,686 INFO L495 AbstractCegarLoop]: Abstraction has has 445 places, 443 transitions, 911 flow [2022-11-20 10:41:08,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 10:41:08,687 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:41:08,687 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:41:08,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 10:41:08,688 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-20 10:41:08,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:41:08,689 INFO L85 PathProgramCache]: Analyzing trace with hash 199732266, now seen corresponding path program 1 times [2022-11-20 10:41:08,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:41:08,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933964592] [2022-11-20 10:41:08,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:08,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:41:08,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:08,746 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 10:41:08,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:41:08,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933964592] [2022-11-20 10:41:08,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933964592] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:41:08,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:41:08,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:41:08,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065667276] [2022-11-20 10:41:08,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:41:08,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:41:08,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:41:08,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:41:08,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:41:08,753 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 458 out of 637 [2022-11-20 10:41:08,754 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 443 transitions, 911 flow. Second operand has 3 states, 3 states have (on average 459.3333333333333) internal successors, (1378), 3 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states 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 10:41:08,755 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:41:08,755 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 458 of 637 [2022-11-20 10:41:08,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:41:09,621 INFO L130 PetriNetUnfolder]: 596/1584 cut-off events. [2022-11-20 10:41:09,622 INFO L131 PetriNetUnfolder]: For 140/180 co-relation queries the response was YES. [2022-11-20 10:41:09,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2595 conditions, 1584 events. 596/1584 cut-off events. For 140/180 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 6826 event pairs, 340 based on Foata normal form. 0/1456 useless extension candidates. Maximal degree in co-relation 2525. Up to 820 conditions per place. [2022-11-20 10:41:09,634 INFO L137 encePairwiseOnDemand]: 634/637 looper letters, 28 selfloop transitions, 2 changer transitions 0/442 dead transitions. [2022-11-20 10:41:09,635 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 442 transitions, 969 flow [2022-11-20 10:41:09,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:41:09,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:41:09,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1403 transitions. [2022-11-20 10:41:09,644 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7341705913134484 [2022-11-20 10:41:09,644 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1403 transitions. [2022-11-20 10:41:09,644 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1403 transitions. [2022-11-20 10:41:09,645 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:41:09,645 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1403 transitions. [2022-11-20 10:41:09,649 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 467.6666666666667) internal successors, (1403), 3 states have internal predecessors, (1403), 0 states have call successors, (0), 0 states 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 10:41:09,654 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:41:09,655 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:41:09,655 INFO L175 Difference]: Start difference. First operand has 445 places, 443 transitions, 911 flow. Second operand 3 states and 1403 transitions. [2022-11-20 10:41:09,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 446 places, 442 transitions, 969 flow [2022-11-20 10:41:09,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 442 transitions, 965 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:41:09,670 INFO L231 Difference]: Finished difference. Result has 444 places, 442 transitions, 909 flow [2022-11-20 10:41:09,671 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=905, PETRI_DIFFERENCE_MINUEND_PLACES=442, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=442, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=440, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=909, PETRI_PLACES=444, PETRI_TRANSITIONS=442} [2022-11-20 10:41:09,674 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -156 predicate places. [2022-11-20 10:41:09,675 INFO L495 AbstractCegarLoop]: Abstraction has has 444 places, 442 transitions, 909 flow [2022-11-20 10:41:09,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 459.3333333333333) internal successors, (1378), 3 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states 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 10:41:09,675 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:41:09,676 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:41:09,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 10:41:09,676 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-20 10:41:09,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:41:09,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1075493643, now seen corresponding path program 1 times [2022-11-20 10:41:09,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:41:09,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745399542] [2022-11-20 10:41:09,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:09,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:41:09,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:09,751 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 10:41:09,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:41:09,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745399542] [2022-11-20 10:41:09,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745399542] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:41:09,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:41:09,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:41:09,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774449306] [2022-11-20 10:41:09,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:41:09,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:41:09,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:41:09,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:41:09,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:41:09,762 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 637 [2022-11-20 10:41:09,764 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 442 transitions, 909 flow. Second operand has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 10:41:09,764 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:41:09,764 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 637 [2022-11-20 10:41:09,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:41:10,794 INFO L130 PetriNetUnfolder]: 596/1583 cut-off events. [2022-11-20 10:41:10,795 INFO L131 PetriNetUnfolder]: For 141/181 co-relation queries the response was YES. [2022-11-20 10:41:10,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2590 conditions, 1583 events. 596/1583 cut-off events. For 141/181 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 6816 event pairs, 340 based on Foata normal form. 0/1456 useless extension candidates. Maximal degree in co-relation 2521. Up to 815 conditions per place. [2022-11-20 10:41:10,809 INFO L137 encePairwiseOnDemand]: 635/637 looper letters, 25 selfloop transitions, 1 changer transitions 0/441 dead transitions. [2022-11-20 10:41:10,809 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 441 transitions, 959 flow [2022-11-20 10:41:10,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:41:10,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:41:10,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1408 transitions. [2022-11-20 10:41:10,815 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7367870225013082 [2022-11-20 10:41:10,815 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1408 transitions. [2022-11-20 10:41:10,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1408 transitions. [2022-11-20 10:41:10,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:41:10,817 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1408 transitions. [2022-11-20 10:41:10,822 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 469.3333333333333) internal successors, (1408), 3 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:41:10,827 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:41:10,828 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:41:10,828 INFO L175 Difference]: Start difference. First operand has 444 places, 442 transitions, 909 flow. Second operand 3 states and 1408 transitions. [2022-11-20 10:41:10,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 441 transitions, 959 flow [2022-11-20 10:41:10,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 443 places, 441 transitions, 955 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:41:10,841 INFO L231 Difference]: Finished difference. Result has 443 places, 441 transitions, 905 flow [2022-11-20 10:41:10,842 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=903, PETRI_DIFFERENCE_MINUEND_PLACES=441, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=441, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=440, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=905, PETRI_PLACES=443, PETRI_TRANSITIONS=441} [2022-11-20 10:41:10,843 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -157 predicate places. [2022-11-20 10:41:10,843 INFO L495 AbstractCegarLoop]: Abstraction has has 443 places, 441 transitions, 905 flow [2022-11-20 10:41:10,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 10:41:10,844 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:41:10,844 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:41:10,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 10:41:10,845 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-20 10:41:10,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:41:10,846 INFO L85 PathProgramCache]: Analyzing trace with hash 2096937735, now seen corresponding path program 1 times [2022-11-20 10:41:10,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:41:10,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013307597] [2022-11-20 10:41:10,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:10,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:41:10,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:10,930 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 10:41:10,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:41:10,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013307597] [2022-11-20 10:41:10,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013307597] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:41:10,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:41:10,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:41:10,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167584728] [2022-11-20 10:41:10,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:41:10,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:41:10,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:41:10,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:41:10,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:41:10,936 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 637 [2022-11-20 10:41:10,938 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 443 places, 441 transitions, 905 flow. Second operand has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 10:41:10,939 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:41:10,939 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 637 [2022-11-20 10:41:10,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:41:11,852 INFO L130 PetriNetUnfolder]: 596/1582 cut-off events. [2022-11-20 10:41:11,853 INFO L131 PetriNetUnfolder]: For 140/180 co-relation queries the response was YES. [2022-11-20 10:41:11,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2589 conditions, 1582 events. 596/1582 cut-off events. For 140/180 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 6810 event pairs, 340 based on Foata normal form. 0/1456 useless extension candidates. Maximal degree in co-relation 2519. Up to 817 conditions per place. [2022-11-20 10:41:11,868 INFO L137 encePairwiseOnDemand]: 634/637 looper letters, 25 selfloop transitions, 2 changer transitions 0/440 dead transitions. [2022-11-20 10:41:11,868 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 444 places, 440 transitions, 957 flow [2022-11-20 10:41:11,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:41:11,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:41:11,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1409 transitions. [2022-11-20 10:41:11,873 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7373103087388801 [2022-11-20 10:41:11,873 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1409 transitions. [2022-11-20 10:41:11,873 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1409 transitions. [2022-11-20 10:41:11,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:41:11,875 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1409 transitions. [2022-11-20 10:41:11,879 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 469.6666666666667) internal successors, (1409), 3 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states 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 10:41:11,883 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:41:11,884 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:41:11,884 INFO L175 Difference]: Start difference. First operand has 443 places, 441 transitions, 905 flow. Second operand 3 states and 1409 transitions. [2022-11-20 10:41:11,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 444 places, 440 transitions, 957 flow [2022-11-20 10:41:11,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 443 places, 440 transitions, 956 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 10:41:11,895 INFO L231 Difference]: Finished difference. Result has 443 places, 440 transitions, 906 flow [2022-11-20 10:41:11,896 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=902, PETRI_DIFFERENCE_MINUEND_PLACES=441, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=438, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=906, PETRI_PLACES=443, PETRI_TRANSITIONS=440} [2022-11-20 10:41:11,897 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -157 predicate places. [2022-11-20 10:41:11,897 INFO L495 AbstractCegarLoop]: Abstraction has has 443 places, 440 transitions, 906 flow [2022-11-20 10:41:11,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 10:41:11,898 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:41:11,898 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:41:11,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 10:41:11,899 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-20 10:41:11,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:41:11,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1053615505, now seen corresponding path program 1 times [2022-11-20 10:41:11,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:41:11,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610800604] [2022-11-20 10:41:11,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:11,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:41:11,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:11,974 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 10:41:11,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:41:11,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610800604] [2022-11-20 10:41:11,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610800604] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:41:11,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:41:11,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:41:11,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147333442] [2022-11-20 10:41:11,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:41:11,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:41:11,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:41:11,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:41:11,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:41:11,979 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 458 out of 637 [2022-11-20 10:41:11,981 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 443 places, 440 transitions, 906 flow. Second operand has 3 states, 3 states have (on average 459.3333333333333) internal successors, (1378), 3 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states 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 10:41:11,982 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:41:11,982 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 458 of 637 [2022-11-20 10:41:11,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:41:12,863 INFO L130 PetriNetUnfolder]: 596/1581 cut-off events. [2022-11-20 10:41:12,863 INFO L131 PetriNetUnfolder]: For 140/180 co-relation queries the response was YES. [2022-11-20 10:41:12,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2593 conditions, 1581 events. 596/1581 cut-off events. For 140/180 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 6813 event pairs, 340 based on Foata normal form. 0/1456 useless extension candidates. Maximal degree in co-relation 2523. Up to 820 conditions per place. [2022-11-20 10:41:12,883 INFO L137 encePairwiseOnDemand]: 634/637 looper letters, 28 selfloop transitions, 2 changer transitions 0/439 dead transitions. [2022-11-20 10:41:12,883 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 444 places, 439 transitions, 964 flow [2022-11-20 10:41:12,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:41:12,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:41:12,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1403 transitions. [2022-11-20 10:41:12,888 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7341705913134484 [2022-11-20 10:41:12,888 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1403 transitions. [2022-11-20 10:41:12,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1403 transitions. [2022-11-20 10:41:12,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:41:12,889 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1403 transitions. [2022-11-20 10:41:12,893 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 467.6666666666667) internal successors, (1403), 3 states have internal predecessors, (1403), 0 states have call successors, (0), 0 states 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 10:41:12,897 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:41:12,898 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:41:12,898 INFO L175 Difference]: Start difference. First operand has 443 places, 440 transitions, 906 flow. Second operand 3 states and 1403 transitions. [2022-11-20 10:41:12,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 444 places, 439 transitions, 964 flow [2022-11-20 10:41:12,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 442 places, 439 transitions, 960 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:41:12,908 INFO L231 Difference]: Finished difference. Result has 442 places, 439 transitions, 904 flow [2022-11-20 10:41:12,909 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=900, PETRI_DIFFERENCE_MINUEND_PLACES=440, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=439, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=437, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=904, PETRI_PLACES=442, PETRI_TRANSITIONS=439} [2022-11-20 10:41:12,911 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -158 predicate places. [2022-11-20 10:41:12,911 INFO L495 AbstractCegarLoop]: Abstraction has has 442 places, 439 transitions, 904 flow [2022-11-20 10:41:12,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 459.3333333333333) internal successors, (1378), 3 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states 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 10:41:12,912 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:41:12,912 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:41:12,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 10:41:12,913 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-20 10:41:12,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:41:12,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1596075540, now seen corresponding path program 1 times [2022-11-20 10:41:12,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:41:12,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39842544] [2022-11-20 10:41:12,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:12,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:41:12,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:12,993 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 10:41:12,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:41:12,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39842544] [2022-11-20 10:41:12,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39842544] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:41:12,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:41:12,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:41:12,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092583542] [2022-11-20 10:41:12,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:41:12,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:41:12,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:41:13,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:41:13,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:41:13,002 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 637 [2022-11-20 10:41:13,004 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 442 places, 439 transitions, 904 flow. Second operand has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 10:41:13,004 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:41:13,004 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 637 [2022-11-20 10:41:13,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:41:14,297 INFO L130 PetriNetUnfolder]: 908/2661 cut-off events. [2022-11-20 10:41:14,297 INFO L131 PetriNetUnfolder]: For 275/325 co-relation queries the response was YES. [2022-11-20 10:41:14,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4193 conditions, 2661 events. 908/2661 cut-off events. For 275/325 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 16064 event pairs, 140 based on Foata normal form. 3/2441 useless extension candidates. Maximal degree in co-relation 4124. Up to 894 conditions per place. [2022-11-20 10:41:14,320 INFO L137 encePairwiseOnDemand]: 634/637 looper letters, 43 selfloop transitions, 2 changer transitions 0/457 dead transitions. [2022-11-20 10:41:14,320 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 443 places, 457 transitions, 1044 flow [2022-11-20 10:41:14,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:41:14,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:41:14,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1425 transitions. [2022-11-20 10:41:14,326 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7456828885400314 [2022-11-20 10:41:14,326 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1425 transitions. [2022-11-20 10:41:14,326 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1425 transitions. [2022-11-20 10:41:14,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:41:14,328 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1425 transitions. [2022-11-20 10:41:14,332 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 475.0) internal successors, (1425), 3 states have internal predecessors, (1425), 0 states have call successors, (0), 0 states 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 10:41:14,337 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:41:14,338 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:41:14,338 INFO L175 Difference]: Start difference. First operand has 442 places, 439 transitions, 904 flow. Second operand 3 states and 1425 transitions. [2022-11-20 10:41:14,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 443 places, 457 transitions, 1044 flow [2022-11-20 10:41:14,342 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 441 places, 457 transitions, 1040 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:41:14,348 INFO L231 Difference]: Finished difference. Result has 442 places, 439 transitions, 908 flow [2022-11-20 10:41:14,349 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=898, PETRI_DIFFERENCE_MINUEND_PLACES=439, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=438, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=436, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=908, PETRI_PLACES=442, PETRI_TRANSITIONS=439} [2022-11-20 10:41:14,350 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -158 predicate places. [2022-11-20 10:41:14,350 INFO L495 AbstractCegarLoop]: Abstraction has has 442 places, 439 transitions, 908 flow [2022-11-20 10:41:14,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 10:41:14,351 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:41:14,351 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:41:14,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 10:41:14,352 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-20 10:41:14,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:41:14,353 INFO L85 PathProgramCache]: Analyzing trace with hash 2116542610, now seen corresponding path program 1 times [2022-11-20 10:41:14,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:41:14,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773760295] [2022-11-20 10:41:14,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:14,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:41:14,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:14,418 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 10:41:14,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:41:14,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773760295] [2022-11-20 10:41:14,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773760295] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:41:14,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:41:14,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:41:14,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189464697] [2022-11-20 10:41:14,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:41:14,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:41:14,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:41:14,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:41:14,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:41:14,423 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 637 [2022-11-20 10:41:14,425 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 442 places, 439 transitions, 908 flow. Second operand has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 10:41:14,425 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:41:14,426 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 637 [2022-11-20 10:41:14,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:41:15,732 INFO L130 PetriNetUnfolder]: 908/2444 cut-off events. [2022-11-20 10:41:15,733 INFO L131 PetriNetUnfolder]: For 412/474 co-relation queries the response was YES. [2022-11-20 10:41:15,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4256 conditions, 2444 events. 908/2444 cut-off events. For 412/474 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 13933 event pairs, 566 based on Foata normal form. 0/2228 useless extension candidates. Maximal degree in co-relation 4185. Up to 1250 conditions per place. [2022-11-20 10:41:15,756 INFO L137 encePairwiseOnDemand]: 634/637 looper letters, 26 selfloop transitions, 2 changer transitions 0/438 dead transitions. [2022-11-20 10:41:15,757 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 443 places, 438 transitions, 962 flow [2022-11-20 10:41:15,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:41:15,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:41:15,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1409 transitions. [2022-11-20 10:41:15,761 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7373103087388801 [2022-11-20 10:41:15,761 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1409 transitions. [2022-11-20 10:41:15,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1409 transitions. [2022-11-20 10:41:15,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:41:15,762 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1409 transitions. [2022-11-20 10:41:15,765 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 469.6666666666667) internal successors, (1409), 3 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states 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 10:41:15,769 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:41:15,770 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:41:15,770 INFO L175 Difference]: Start difference. First operand has 442 places, 439 transitions, 908 flow. Second operand 3 states and 1409 transitions. [2022-11-20 10:41:15,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 443 places, 438 transitions, 962 flow [2022-11-20 10:41:15,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 442 places, 438 transitions, 960 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 10:41:15,779 INFO L231 Difference]: Finished difference. Result has 442 places, 438 transitions, 908 flow [2022-11-20 10:41:15,779 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=904, PETRI_DIFFERENCE_MINUEND_PLACES=440, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=438, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=436, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=908, PETRI_PLACES=442, PETRI_TRANSITIONS=438} [2022-11-20 10:41:15,780 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -158 predicate places. [2022-11-20 10:41:15,780 INFO L495 AbstractCegarLoop]: Abstraction has has 442 places, 438 transitions, 908 flow [2022-11-20 10:41:15,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 10:41:15,781 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:41:15,781 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:41:15,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-20 10:41:15,782 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-20 10:41:15,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:41:15,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1765666065, now seen corresponding path program 1 times [2022-11-20 10:41:15,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:41:15,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220505309] [2022-11-20 10:41:15,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:15,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:41:15,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:15,836 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 10:41:15,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:41:15,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220505309] [2022-11-20 10:41:15,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220505309] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:41:15,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:41:15,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:41:15,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344909450] [2022-11-20 10:41:15,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:41:15,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:41:15,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:41:15,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:41:15,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:41:15,840 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 458 out of 637 [2022-11-20 10:41:15,842 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 442 places, 438 transitions, 908 flow. Second operand has 3 states, 3 states have (on average 459.3333333333333) internal successors, (1378), 3 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states 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 10:41:15,842 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:41:15,842 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 458 of 637 [2022-11-20 10:41:15,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:41:16,946 INFO L130 PetriNetUnfolder]: 908/2443 cut-off events. [2022-11-20 10:41:16,946 INFO L131 PetriNetUnfolder]: For 411/473 co-relation queries the response was YES. [2022-11-20 10:41:16,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4167 conditions, 2443 events. 908/2443 cut-off events. For 411/473 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 13945 event pairs, 566 based on Foata normal form. 0/2228 useless extension candidates. Maximal degree in co-relation 4096. Up to 1253 conditions per place. [2022-11-20 10:41:16,968 INFO L137 encePairwiseOnDemand]: 634/637 looper letters, 29 selfloop transitions, 2 changer transitions 0/437 dead transitions. [2022-11-20 10:41:16,968 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 443 places, 437 transitions, 968 flow [2022-11-20 10:41:16,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:41:16,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:41:16,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1403 transitions. [2022-11-20 10:41:16,972 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7341705913134484 [2022-11-20 10:41:16,972 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1403 transitions. [2022-11-20 10:41:16,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1403 transitions. [2022-11-20 10:41:16,974 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:41:16,974 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1403 transitions. [2022-11-20 10:41:16,977 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 467.6666666666667) internal successors, (1403), 3 states have internal predecessors, (1403), 0 states have call successors, (0), 0 states 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 10:41:16,980 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:41:16,981 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:41:16,982 INFO L175 Difference]: Start difference. First operand has 442 places, 438 transitions, 908 flow. Second operand 3 states and 1403 transitions. [2022-11-20 10:41:16,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 443 places, 437 transitions, 968 flow [2022-11-20 10:41:16,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 441 places, 437 transitions, 964 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:41:16,990 INFO L231 Difference]: Finished difference. Result has 441 places, 437 transitions, 906 flow [2022-11-20 10:41:16,991 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=902, PETRI_DIFFERENCE_MINUEND_PLACES=439, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=437, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=435, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=906, PETRI_PLACES=441, PETRI_TRANSITIONS=437} [2022-11-20 10:41:16,992 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -159 predicate places. [2022-11-20 10:41:16,992 INFO L495 AbstractCegarLoop]: Abstraction has has 441 places, 437 transitions, 906 flow [2022-11-20 10:41:16,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 459.3333333333333) internal successors, (1378), 3 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states 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 10:41:16,993 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:41:16,993 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:41:16,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-20 10:41:16,994 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-20 10:41:16,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:41:16,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1799625019, now seen corresponding path program 1 times [2022-11-20 10:41:16,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:41:16,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243993501] [2022-11-20 10:41:16,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:16,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:41:17,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:17,051 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 10:41:17,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:41:17,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243993501] [2022-11-20 10:41:17,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243993501] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:41:17,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:41:17,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:41:17,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368701791] [2022-11-20 10:41:17,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:41:17,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:41:17,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:41:17,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:41:17,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:41:17,056 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 637 [2022-11-20 10:41:17,057 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 437 transitions, 906 flow. Second operand has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 10:41:17,058 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:41:17,058 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 637 [2022-11-20 10:41:17,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:41:18,161 INFO L130 PetriNetUnfolder]: 908/2442 cut-off events. [2022-11-20 10:41:18,162 INFO L131 PetriNetUnfolder]: For 412/474 co-relation queries the response was YES. [2022-11-20 10:41:18,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4162 conditions, 2442 events. 908/2442 cut-off events. For 412/474 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 13851 event pairs, 566 based on Foata normal form. 0/2228 useless extension candidates. Maximal degree in co-relation 4092. Up to 1248 conditions per place. [2022-11-20 10:41:18,187 INFO L137 encePairwiseOnDemand]: 635/637 looper letters, 26 selfloop transitions, 1 changer transitions 0/436 dead transitions. [2022-11-20 10:41:18,188 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 436 transitions, 958 flow [2022-11-20 10:41:18,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:41:18,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:41:18,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1408 transitions. [2022-11-20 10:41:18,194 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7367870225013082 [2022-11-20 10:41:18,194 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1408 transitions. [2022-11-20 10:41:18,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1408 transitions. [2022-11-20 10:41:18,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:41:18,196 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1408 transitions. [2022-11-20 10:41:18,200 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 469.3333333333333) internal successors, (1408), 3 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:41:18,205 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:41:18,206 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:41:18,207 INFO L175 Difference]: Start difference. First operand has 441 places, 437 transitions, 906 flow. Second operand 3 states and 1408 transitions. [2022-11-20 10:41:18,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 436 transitions, 958 flow [2022-11-20 10:41:18,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 440 places, 436 transitions, 954 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:41:18,218 INFO L231 Difference]: Finished difference. Result has 440 places, 436 transitions, 902 flow [2022-11-20 10:41:18,219 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=900, PETRI_DIFFERENCE_MINUEND_PLACES=438, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=436, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=435, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=902, PETRI_PLACES=440, PETRI_TRANSITIONS=436} [2022-11-20 10:41:18,220 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -160 predicate places. [2022-11-20 10:41:18,220 INFO L495 AbstractCegarLoop]: Abstraction has has 440 places, 436 transitions, 902 flow [2022-11-20 10:41:18,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 10:41:18,221 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:41:18,222 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:41:18,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-20 10:41:18,222 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-20 10:41:18,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:41:18,223 INFO L85 PathProgramCache]: Analyzing trace with hash -617306677, now seen corresponding path program 1 times [2022-11-20 10:41:18,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:41:18,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972747091] [2022-11-20 10:41:18,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:18,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:41:18,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:18,319 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 10:41:18,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:41:18,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972747091] [2022-11-20 10:41:18,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972747091] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:41:18,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:41:18,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:41:18,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705310244] [2022-11-20 10:41:18,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:41:18,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:41:18,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:41:18,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:41:18,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:41:18,325 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 637 [2022-11-20 10:41:18,327 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 436 transitions, 902 flow. Second operand has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 10:41:18,328 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:41:18,328 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 637 [2022-11-20 10:41:18,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:41:19,356 INFO L130 PetriNetUnfolder]: 908/2441 cut-off events. [2022-11-20 10:41:19,356 INFO L131 PetriNetUnfolder]: For 411/473 co-relation queries the response was YES. [2022-11-20 10:41:19,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4161 conditions, 2441 events. 908/2441 cut-off events. For 411/473 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 13904 event pairs, 566 based on Foata normal form. 0/2228 useless extension candidates. Maximal degree in co-relation 4090. Up to 1250 conditions per place. [2022-11-20 10:41:19,373 INFO L137 encePairwiseOnDemand]: 634/637 looper letters, 26 selfloop transitions, 2 changer transitions 0/435 dead transitions. [2022-11-20 10:41:19,373 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 441 places, 435 transitions, 956 flow [2022-11-20 10:41:19,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:41:19,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:41:19,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1409 transitions. [2022-11-20 10:41:19,377 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7373103087388801 [2022-11-20 10:41:19,377 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1409 transitions. [2022-11-20 10:41:19,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1409 transitions. [2022-11-20 10:41:19,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:41:19,379 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1409 transitions. [2022-11-20 10:41:19,382 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 469.6666666666667) internal successors, (1409), 3 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states 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 10:41:19,386 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:41:19,387 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:41:19,387 INFO L175 Difference]: Start difference. First operand has 440 places, 436 transitions, 902 flow. Second operand 3 states and 1409 transitions. [2022-11-20 10:41:19,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 441 places, 435 transitions, 956 flow [2022-11-20 10:41:19,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 440 places, 435 transitions, 955 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 10:41:19,397 INFO L231 Difference]: Finished difference. Result has 440 places, 435 transitions, 903 flow [2022-11-20 10:41:19,397 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=899, PETRI_DIFFERENCE_MINUEND_PLACES=438, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=433, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=903, PETRI_PLACES=440, PETRI_TRANSITIONS=435} [2022-11-20 10:41:19,398 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -160 predicate places. [2022-11-20 10:41:19,398 INFO L495 AbstractCegarLoop]: Abstraction has has 440 places, 435 transitions, 903 flow [2022-11-20 10:41:19,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 10:41:19,399 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:41:19,400 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:41:19,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-20 10:41:19,400 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-20 10:41:19,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:41:19,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1439063817, now seen corresponding path program 1 times [2022-11-20 10:41:19,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:41:19,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033040253] [2022-11-20 10:41:19,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:19,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:41:19,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:19,484 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 10:41:19,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:41:19,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033040253] [2022-11-20 10:41:19,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033040253] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:41:19,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:41:19,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:41:19,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517186759] [2022-11-20 10:41:19,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:41:19,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:41:19,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:41:19,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:41:19,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:41:19,489 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 458 out of 637 [2022-11-20 10:41:19,491 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 435 transitions, 903 flow. Second operand has 3 states, 3 states have (on average 459.3333333333333) internal successors, (1378), 3 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states 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 10:41:19,491 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:41:19,491 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 458 of 637 [2022-11-20 10:41:19,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:41:20,417 INFO L130 PetriNetUnfolder]: 908/2440 cut-off events. [2022-11-20 10:41:20,417 INFO L131 PetriNetUnfolder]: For 411/473 co-relation queries the response was YES. [2022-11-20 10:41:20,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4165 conditions, 2440 events. 908/2440 cut-off events. For 411/473 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 13956 event pairs, 566 based on Foata normal form. 0/2228 useless extension candidates. Maximal degree in co-relation 4094. Up to 1253 conditions per place. [2022-11-20 10:41:20,434 INFO L137 encePairwiseOnDemand]: 634/637 looper letters, 29 selfloop transitions, 2 changer transitions 0/434 dead transitions. [2022-11-20 10:41:20,434 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 441 places, 434 transitions, 963 flow [2022-11-20 10:41:20,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:41:20,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:41:20,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1403 transitions. [2022-11-20 10:41:20,439 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7341705913134484 [2022-11-20 10:41:20,439 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1403 transitions. [2022-11-20 10:41:20,440 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1403 transitions. [2022-11-20 10:41:20,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:41:20,441 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1403 transitions. [2022-11-20 10:41:20,444 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 467.6666666666667) internal successors, (1403), 3 states have internal predecessors, (1403), 0 states have call successors, (0), 0 states 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 10:41:20,447 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:41:20,448 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:41:20,449 INFO L175 Difference]: Start difference. First operand has 440 places, 435 transitions, 903 flow. Second operand 3 states and 1403 transitions. [2022-11-20 10:41:20,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 441 places, 434 transitions, 963 flow [2022-11-20 10:41:20,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 439 places, 434 transitions, 959 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:41:20,457 INFO L231 Difference]: Finished difference. Result has 439 places, 434 transitions, 901 flow [2022-11-20 10:41:20,458 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=897, PETRI_DIFFERENCE_MINUEND_PLACES=437, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=434, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=432, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=901, PETRI_PLACES=439, PETRI_TRANSITIONS=434} [2022-11-20 10:41:20,459 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -161 predicate places. [2022-11-20 10:41:20,459 INFO L495 AbstractCegarLoop]: Abstraction has has 439 places, 434 transitions, 901 flow [2022-11-20 10:41:20,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 459.3333333333333) internal successors, (1378), 3 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states 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 10:41:20,460 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:41:20,460 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:41:20,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-20 10:41:20,461 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-20 10:41:20,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:41:20,461 INFO L85 PathProgramCache]: Analyzing trace with hash -948069663, now seen corresponding path program 1 times [2022-11-20 10:41:20,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:41:20,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614398451] [2022-11-20 10:41:20,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:20,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:41:20,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:20,532 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 10:41:20,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:41:20,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614398451] [2022-11-20 10:41:20,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614398451] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:41:20,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:41:20,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:41:20,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857980653] [2022-11-20 10:41:20,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:41:20,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:41:20,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:41:20,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:41:20,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:41:20,537 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 637 [2022-11-20 10:41:20,539 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 434 transitions, 901 flow. Second operand has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 10:41:20,539 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:41:20,539 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 637 [2022-11-20 10:41:20,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:41:22,012 INFO L130 PetriNetUnfolder]: 1343/3831 cut-off events. [2022-11-20 10:41:22,012 INFO L131 PetriNetUnfolder]: For 698/775 co-relation queries the response was YES. [2022-11-20 10:41:22,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6363 conditions, 3831 events. 1343/3831 cut-off events. For 698/775 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 27153 event pairs, 236 based on Foata normal form. 6/3503 useless extension candidates. Maximal degree in co-relation 6293. Up to 1316 conditions per place. [2022-11-20 10:41:22,040 INFO L137 encePairwiseOnDemand]: 634/637 looper letters, 44 selfloop transitions, 2 changer transitions 0/452 dead transitions. [2022-11-20 10:41:22,040 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 452 transitions, 1046 flow [2022-11-20 10:41:22,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:41:22,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:41:22,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1424 transitions. [2022-11-20 10:41:22,045 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7451596023024595 [2022-11-20 10:41:22,045 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1424 transitions. [2022-11-20 10:41:22,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1424 transitions. [2022-11-20 10:41:22,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:41:22,046 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1424 transitions. [2022-11-20 10:41:22,050 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 474.6666666666667) internal successors, (1424), 3 states have internal predecessors, (1424), 0 states have call successors, (0), 0 states 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 10:41:22,053 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:41:22,055 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:41:22,055 INFO L175 Difference]: Start difference. First operand has 439 places, 434 transitions, 901 flow. Second operand 3 states and 1424 transitions. [2022-11-20 10:41:22,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 452 transitions, 1046 flow [2022-11-20 10:41:22,059 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 438 places, 452 transitions, 1042 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:41:22,065 INFO L231 Difference]: Finished difference. Result has 439 places, 434 transitions, 905 flow [2022-11-20 10:41:22,065 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=895, PETRI_DIFFERENCE_MINUEND_PLACES=436, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=433, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=431, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=905, PETRI_PLACES=439, PETRI_TRANSITIONS=434} [2022-11-20 10:41:22,066 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -161 predicate places. [2022-11-20 10:41:22,066 INFO L495 AbstractCegarLoop]: Abstraction has has 439 places, 434 transitions, 905 flow [2022-11-20 10:41:22,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 10:41:22,067 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:41:22,068 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:41:22,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-20 10:41:22,068 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-20 10:41:22,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:41:22,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1297092549, now seen corresponding path program 1 times [2022-11-20 10:41:22,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:41:22,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331536861] [2022-11-20 10:41:22,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:22,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:41:22,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:22,147 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 10:41:22,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:41:22,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331536861] [2022-11-20 10:41:22,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331536861] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:41:22,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:41:22,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:41:22,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928269649] [2022-11-20 10:41:22,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:41:22,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:41:22,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:41:22,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:41:22,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:41:22,155 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 637 [2022-11-20 10:41:22,157 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 434 transitions, 905 flow. Second operand has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 10:41:22,157 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:41:22,158 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 637 [2022-11-20 10:41:22,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:41:23,721 INFO L130 PetriNetUnfolder]: 1343/3792 cut-off events. [2022-11-20 10:41:23,722 INFO L131 PetriNetUnfolder]: For 910/997 co-relation queries the response was YES. [2022-11-20 10:41:23,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6760 conditions, 3792 events. 1343/3792 cut-off events. For 910/997 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 27401 event pairs, 908 based on Foata normal form. 0/3414 useless extension candidates. Maximal degree in co-relation 6688. Up to 1854 conditions per place. [2022-11-20 10:41:23,752 INFO L137 encePairwiseOnDemand]: 634/637 looper letters, 27 selfloop transitions, 2 changer transitions 0/433 dead transitions. [2022-11-20 10:41:23,753 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 433 transitions, 961 flow [2022-11-20 10:41:23,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:41:23,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:41:23,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1409 transitions. [2022-11-20 10:41:23,756 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7373103087388801 [2022-11-20 10:41:23,756 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1409 transitions. [2022-11-20 10:41:23,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1409 transitions. [2022-11-20 10:41:23,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:41:23,758 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1409 transitions. [2022-11-20 10:41:23,760 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 469.6666666666667) internal successors, (1409), 3 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states 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 10:41:23,763 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:41:23,764 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:41:23,765 INFO L175 Difference]: Start difference. First operand has 439 places, 434 transitions, 905 flow. Second operand 3 states and 1409 transitions. [2022-11-20 10:41:23,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 433 transitions, 961 flow [2022-11-20 10:41:23,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 439 places, 433 transitions, 959 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 10:41:23,772 INFO L231 Difference]: Finished difference. Result has 439 places, 433 transitions, 905 flow [2022-11-20 10:41:23,773 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=901, PETRI_DIFFERENCE_MINUEND_PLACES=437, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=433, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=431, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=905, PETRI_PLACES=439, PETRI_TRANSITIONS=433} [2022-11-20 10:41:23,774 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -161 predicate places. [2022-11-20 10:41:23,774 INFO L495 AbstractCegarLoop]: Abstraction has has 439 places, 433 transitions, 905 flow [2022-11-20 10:41:23,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 10:41:23,775 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:41:23,775 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:41:23,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-20 10:41:23,776 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-20 10:41:23,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:41:23,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1837659221, now seen corresponding path program 1 times [2022-11-20 10:41:23,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:41:23,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876035911] [2022-11-20 10:41:23,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:23,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:41:23,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:23,845 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 10:41:23,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:41:23,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876035911] [2022-11-20 10:41:23,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876035911] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:41:23,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:41:23,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:41:23,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139001156] [2022-11-20 10:41:23,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:41:23,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:41:23,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:41:23,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:41:23,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:41:23,849 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 458 out of 637 [2022-11-20 10:41:23,851 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 433 transitions, 905 flow. Second operand has 3 states, 3 states have (on average 459.3333333333333) internal successors, (1378), 3 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states 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 10:41:23,851 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:41:23,851 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 458 of 637 [2022-11-20 10:41:23,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:41:25,344 INFO L130 PetriNetUnfolder]: 1343/3791 cut-off events. [2022-11-20 10:41:25,345 INFO L131 PetriNetUnfolder]: For 909/996 co-relation queries the response was YES. [2022-11-20 10:41:25,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6619 conditions, 3791 events. 1343/3791 cut-off events. For 909/996 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 27392 event pairs, 908 based on Foata normal form. 0/3414 useless extension candidates. Maximal degree in co-relation 6547. Up to 1857 conditions per place. [2022-11-20 10:41:25,475 INFO L137 encePairwiseOnDemand]: 634/637 looper letters, 30 selfloop transitions, 2 changer transitions 0/432 dead transitions. [2022-11-20 10:41:25,475 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 432 transitions, 967 flow [2022-11-20 10:41:25,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:41:25,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:41:25,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1403 transitions. [2022-11-20 10:41:25,480 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7341705913134484 [2022-11-20 10:41:25,481 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1403 transitions. [2022-11-20 10:41:25,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1403 transitions. [2022-11-20 10:41:25,482 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:41:25,482 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1403 transitions. [2022-11-20 10:41:25,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 467.6666666666667) internal successors, (1403), 3 states have internal predecessors, (1403), 0 states have call successors, (0), 0 states 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 10:41:25,490 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:41:25,491 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:41:25,491 INFO L175 Difference]: Start difference. First operand has 439 places, 433 transitions, 905 flow. Second operand 3 states and 1403 transitions. [2022-11-20 10:41:25,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 432 transitions, 967 flow [2022-11-20 10:41:25,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 438 places, 432 transitions, 963 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:41:25,502 INFO L231 Difference]: Finished difference. Result has 438 places, 432 transitions, 903 flow [2022-11-20 10:41:25,503 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=899, PETRI_DIFFERENCE_MINUEND_PLACES=436, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=432, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=430, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=903, PETRI_PLACES=438, PETRI_TRANSITIONS=432} [2022-11-20 10:41:25,504 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -162 predicate places. [2022-11-20 10:41:25,504 INFO L495 AbstractCegarLoop]: Abstraction has has 438 places, 432 transitions, 903 flow [2022-11-20 10:41:25,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 459.3333333333333) internal successors, (1378), 3 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states 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 10:41:25,505 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:41:25,505 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:41:25,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-20 10:41:25,506 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-20 10:41:25,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:41:25,506 INFO L85 PathProgramCache]: Analyzing trace with hash -701134788, now seen corresponding path program 1 times [2022-11-20 10:41:25,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:41:25,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670936197] [2022-11-20 10:41:25,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:25,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:41:25,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:25,599 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 10:41:25,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:41:25,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670936197] [2022-11-20 10:41:25,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670936197] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:41:25,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:41:25,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:41:25,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613923332] [2022-11-20 10:41:25,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:41:25,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:41:25,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:41:25,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:41:25,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:41:25,604 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 637 [2022-11-20 10:41:25,606 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 432 transitions, 903 flow. Second operand has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 10:41:25,606 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:41:25,607 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 637 [2022-11-20 10:41:25,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:41:27,193 INFO L130 PetriNetUnfolder]: 1343/3790 cut-off events. [2022-11-20 10:41:27,193 INFO L131 PetriNetUnfolder]: For 910/997 co-relation queries the response was YES. [2022-11-20 10:41:27,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6614 conditions, 3790 events. 1343/3790 cut-off events. For 910/997 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 27374 event pairs, 908 based on Foata normal form. 0/3414 useless extension candidates. Maximal degree in co-relation 6543. Up to 1852 conditions per place. [2022-11-20 10:41:27,225 INFO L137 encePairwiseOnDemand]: 635/637 looper letters, 27 selfloop transitions, 1 changer transitions 0/431 dead transitions. [2022-11-20 10:41:27,225 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 439 places, 431 transitions, 957 flow [2022-11-20 10:41:27,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:41:27,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:41:27,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1408 transitions. [2022-11-20 10:41:27,230 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7367870225013082 [2022-11-20 10:41:27,231 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1408 transitions. [2022-11-20 10:41:27,231 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1408 transitions. [2022-11-20 10:41:27,232 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:41:27,232 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1408 transitions. [2022-11-20 10:41:27,235 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 469.3333333333333) internal successors, (1408), 3 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:41:27,238 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:41:27,239 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:41:27,239 INFO L175 Difference]: Start difference. First operand has 438 places, 432 transitions, 903 flow. Second operand 3 states and 1408 transitions. [2022-11-20 10:41:27,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 439 places, 431 transitions, 957 flow [2022-11-20 10:41:27,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 431 transitions, 953 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:41:27,250 INFO L231 Difference]: Finished difference. Result has 437 places, 431 transitions, 899 flow [2022-11-20 10:41:27,251 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=897, PETRI_DIFFERENCE_MINUEND_PLACES=435, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=431, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=430, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=899, PETRI_PLACES=437, PETRI_TRANSITIONS=431} [2022-11-20 10:41:27,251 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -163 predicate places. [2022-11-20 10:41:27,251 INFO L495 AbstractCegarLoop]: Abstraction has has 437 places, 431 transitions, 899 flow [2022-11-20 10:41:27,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 10:41:27,253 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:41:27,253 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:41:27,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-20 10:41:27,253 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-20 10:41:27,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:41:27,254 INFO L85 PathProgramCache]: Analyzing trace with hash -349407276, now seen corresponding path program 1 times [2022-11-20 10:41:27,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:41:27,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102573291] [2022-11-20 10:41:27,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:27,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:41:27,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:27,345 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 10:41:27,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:41:27,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102573291] [2022-11-20 10:41:27,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102573291] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:41:27,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:41:27,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:41:27,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445187515] [2022-11-20 10:41:27,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:41:27,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:41:27,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:41:27,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:41:27,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:41:27,351 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 637 [2022-11-20 10:41:27,352 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 431 transitions, 899 flow. Second operand has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 10:41:27,352 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:41:27,352 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 637 [2022-11-20 10:41:27,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:41:28,796 INFO L130 PetriNetUnfolder]: 1343/3789 cut-off events. [2022-11-20 10:41:28,796 INFO L131 PetriNetUnfolder]: For 909/996 co-relation queries the response was YES. [2022-11-20 10:41:28,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6613 conditions, 3789 events. 1343/3789 cut-off events. For 909/996 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 27362 event pairs, 908 based on Foata normal form. 0/3414 useless extension candidates. Maximal degree in co-relation 6541. Up to 1854 conditions per place. [2022-11-20 10:41:28,822 INFO L137 encePairwiseOnDemand]: 634/637 looper letters, 27 selfloop transitions, 2 changer transitions 0/430 dead transitions. [2022-11-20 10:41:28,822 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 438 places, 430 transitions, 955 flow [2022-11-20 10:41:28,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:41:28,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:41:28,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1409 transitions. [2022-11-20 10:41:28,828 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7373103087388801 [2022-11-20 10:41:28,828 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1409 transitions. [2022-11-20 10:41:28,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1409 transitions. [2022-11-20 10:41:28,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:41:28,828 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1409 transitions. [2022-11-20 10:41:28,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 469.6666666666667) internal successors, (1409), 3 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states 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 10:41:28,834 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:41:28,835 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:41:28,835 INFO L175 Difference]: Start difference. First operand has 437 places, 431 transitions, 899 flow. Second operand 3 states and 1409 transitions. [2022-11-20 10:41:28,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 438 places, 430 transitions, 955 flow [2022-11-20 10:41:28,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 430 transitions, 954 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 10:41:28,845 INFO L231 Difference]: Finished difference. Result has 437 places, 430 transitions, 900 flow [2022-11-20 10:41:28,845 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=896, PETRI_DIFFERENCE_MINUEND_PLACES=435, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=430, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=428, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=900, PETRI_PLACES=437, PETRI_TRANSITIONS=430} [2022-11-20 10:41:28,846 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -163 predicate places. [2022-11-20 10:41:28,846 INFO L495 AbstractCegarLoop]: Abstraction has has 437 places, 430 transitions, 900 flow [2022-11-20 10:41:28,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 10:41:28,847 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:41:28,847 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:41:28,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-20 10:41:28,848 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-20 10:41:28,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:41:28,849 INFO L85 PathProgramCache]: Analyzing trace with hash -774337051, now seen corresponding path program 1 times [2022-11-20 10:41:28,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:41:28,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24992721] [2022-11-20 10:41:28,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:28,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:41:28,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:28,941 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 10:41:28,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:41:28,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24992721] [2022-11-20 10:41:28,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24992721] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:41:28,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:41:28,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:41:28,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829335543] [2022-11-20 10:41:28,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:41:28,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:41:28,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:41:28,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:41:28,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:41:28,946 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 637 [2022-11-20 10:41:28,947 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 430 transitions, 900 flow. Second operand has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 10:41:28,948 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:41:28,948 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 637 [2022-11-20 10:41:28,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:41:30,531 INFO L130 PetriNetUnfolder]: 1343/3788 cut-off events. [2022-11-20 10:41:30,531 INFO L131 PetriNetUnfolder]: For 909/996 co-relation queries the response was YES. [2022-11-20 10:41:30,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6614 conditions, 3788 events. 1343/3788 cut-off events. For 909/996 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 27378 event pairs, 908 based on Foata normal form. 0/3414 useless extension candidates. Maximal degree in co-relation 6542. Up to 1854 conditions per place. [2022-11-20 10:41:30,551 INFO L137 encePairwiseOnDemand]: 634/637 looper letters, 27 selfloop transitions, 2 changer transitions 0/429 dead transitions. [2022-11-20 10:41:30,552 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 438 places, 429 transitions, 956 flow [2022-11-20 10:41:30,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:41:30,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:41:30,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1409 transitions. [2022-11-20 10:41:30,555 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7373103087388801 [2022-11-20 10:41:30,555 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1409 transitions. [2022-11-20 10:41:30,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1409 transitions. [2022-11-20 10:41:30,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:41:30,556 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1409 transitions. [2022-11-20 10:41:30,559 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 469.6666666666667) internal successors, (1409), 3 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states 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 10:41:30,561 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:41:30,562 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:41:30,562 INFO L175 Difference]: Start difference. First operand has 437 places, 430 transitions, 900 flow. Second operand 3 states and 1409 transitions. [2022-11-20 10:41:30,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 438 places, 429 transitions, 956 flow [2022-11-20 10:41:30,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 436 places, 429 transitions, 952 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:41:30,571 INFO L231 Difference]: Finished difference. Result has 436 places, 429 transitions, 898 flow [2022-11-20 10:41:30,572 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=894, PETRI_DIFFERENCE_MINUEND_PLACES=434, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=429, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=427, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=898, PETRI_PLACES=436, PETRI_TRANSITIONS=429} [2022-11-20 10:41:30,572 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -164 predicate places. [2022-11-20 10:41:30,572 INFO L495 AbstractCegarLoop]: Abstraction has has 436 places, 429 transitions, 898 flow [2022-11-20 10:41:30,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 10:41:30,573 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:41:30,573 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:41:30,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-20 10:41:30,574 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-20 10:41:30,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:41:30,574 INFO L85 PathProgramCache]: Analyzing trace with hash -824831018, now seen corresponding path program 1 times [2022-11-20 10:41:30,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:41:30,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409409008] [2022-11-20 10:41:30,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:30,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:41:30,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:30,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:41:30,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:41:30,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409409008] [2022-11-20 10:41:30,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409409008] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:41:30,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:41:30,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:41:30,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379765160] [2022-11-20 10:41:30,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:41:30,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:41:30,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:41:30,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:41:30,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:41:30,666 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 637 [2022-11-20 10:41:30,667 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 429 transitions, 898 flow. Second operand has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 10:41:30,667 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:41:30,667 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 637 [2022-11-20 10:41:30,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:41:32,035 INFO L130 PetriNetUnfolder]: 1343/3787 cut-off events. [2022-11-20 10:41:32,036 INFO L131 PetriNetUnfolder]: For 909/996 co-relation queries the response was YES. [2022-11-20 10:41:32,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6613 conditions, 3787 events. 1343/3787 cut-off events. For 909/996 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 27375 event pairs, 908 based on Foata normal form. 0/3414 useless extension candidates. Maximal degree in co-relation 6541. Up to 1854 conditions per place. [2022-11-20 10:41:32,066 INFO L137 encePairwiseOnDemand]: 634/637 looper letters, 27 selfloop transitions, 2 changer transitions 0/428 dead transitions. [2022-11-20 10:41:32,066 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 428 transitions, 954 flow [2022-11-20 10:41:32,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:41:32,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:41:32,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1409 transitions. [2022-11-20 10:41:32,072 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7373103087388801 [2022-11-20 10:41:32,072 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1409 transitions. [2022-11-20 10:41:32,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1409 transitions. [2022-11-20 10:41:32,072 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:41:32,072 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1409 transitions. [2022-11-20 10:41:32,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 469.6666666666667) internal successors, (1409), 3 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states 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 10:41:32,076 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:41:32,076 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states 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 10:41:32,077 INFO L175 Difference]: Start difference. First operand has 436 places, 429 transitions, 898 flow. Second operand 3 states and 1409 transitions. [2022-11-20 10:41:32,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 437 places, 428 transitions, 954 flow [2022-11-20 10:41:32,081 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 428 transitions, 950 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:41:32,087 INFO L231 Difference]: Finished difference. Result has 435 places, 428 transitions, 896 flow [2022-11-20 10:41:32,087 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=892, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=426, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=896, PETRI_PLACES=435, PETRI_TRANSITIONS=428} [2022-11-20 10:41:32,088 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -165 predicate places. [2022-11-20 10:41:32,088 INFO L495 AbstractCegarLoop]: Abstraction has has 435 places, 428 transitions, 896 flow [2022-11-20 10:41:32,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 10:41:32,089 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:41:32,089 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:41:32,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-20 10:41:32,090 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-20 10:41:32,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:41:32,091 INFO L85 PathProgramCache]: Analyzing trace with hash 969075404, now seen corresponding path program 1 times [2022-11-20 10:41:32,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:41:32,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989671756] [2022-11-20 10:41:32,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:32,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:41:32,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:33,099 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 10:41:33,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:41:33,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989671756] [2022-11-20 10:41:33,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989671756] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:41:33,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:41:33,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:41:33,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809984879] [2022-11-20 10:41:33,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:41:33,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:41:33,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:41:33,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:41:33,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:41:33,105 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 413 out of 637 [2022-11-20 10:41:33,107 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 435 places, 428 transitions, 896 flow. Second operand has 6 states, 6 states have (on average 415.1666666666667) internal successors, (2491), 6 states have internal predecessors, (2491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:41:33,108 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:41:33,108 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 413 of 637 [2022-11-20 10:41:33,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:41:41,286 INFO L130 PetriNetUnfolder]: 9455/14668 cut-off events. [2022-11-20 10:41:41,286 INFO L131 PetriNetUnfolder]: For 5163/5163 co-relation queries the response was YES. [2022-11-20 10:41:41,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32476 conditions, 14668 events. 9455/14668 cut-off events. For 5163/5163 co-relation queries the response was YES. Maximal size of possible extension queue 532. Compared 87058 event pairs, 1407 based on Foata normal form. 0/14195 useless extension candidates. Maximal degree in co-relation 32403. Up to 6008 conditions per place. [2022-11-20 10:41:41,400 INFO L137 encePairwiseOnDemand]: 632/637 looper letters, 131 selfloop transitions, 4 changer transitions 0/491 dead transitions. [2022-11-20 10:41:41,401 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 439 places, 491 transitions, 1356 flow [2022-11-20 10:41:41,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:41:41,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 10:41:41,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2594 transitions. [2022-11-20 10:41:41,408 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6787022501308215 [2022-11-20 10:41:41,408 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2594 transitions. [2022-11-20 10:41:41,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2594 transitions. [2022-11-20 10:41:41,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:41:41,409 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2594 transitions. [2022-11-20 10:41:41,412 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 432.3333333333333) internal successors, (2594), 6 states have internal predecessors, (2594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:41:41,415 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 637.0) internal successors, (4459), 7 states have internal predecessors, (4459), 0 states have call successors, (0), 0 states 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 10:41:41,415 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 637.0) internal successors, (4459), 7 states have internal predecessors, (4459), 0 states have call successors, (0), 0 states 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 10:41:41,415 INFO L175 Difference]: Start difference. First operand has 435 places, 428 transitions, 896 flow. Second operand 6 states and 2594 transitions. [2022-11-20 10:41:41,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 439 places, 491 transitions, 1356 flow [2022-11-20 10:41:41,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 491 transitions, 1352 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:41:41,427 INFO L231 Difference]: Finished difference. Result has 437 places, 427 transitions, 898 flow [2022-11-20 10:41:41,428 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=890, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=427, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=423, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=898, PETRI_PLACES=437, PETRI_TRANSITIONS=427} [2022-11-20 10:41:41,429 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -163 predicate places. [2022-11-20 10:41:41,429 INFO L495 AbstractCegarLoop]: Abstraction has has 437 places, 427 transitions, 898 flow [2022-11-20 10:41:41,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 415.1666666666667) internal successors, (2491), 6 states have internal predecessors, (2491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:41:41,430 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:41:41,430 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:41:41,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-20 10:41:41,431 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-20 10:41:41,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:41:41,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1699968841, now seen corresponding path program 1 times [2022-11-20 10:41:41,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:41:41,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228944039] [2022-11-20 10:41:41,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:41,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:41:41,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:42,534 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 10:41:42,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:41:42,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228944039] [2022-11-20 10:41:42,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228944039] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:41:42,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:41:42,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:41:42,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668436444] [2022-11-20 10:41:42,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:41:42,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:41:42,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:41:42,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:41:42,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:41:42,541 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 413 out of 637 [2022-11-20 10:41:42,543 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 427 transitions, 898 flow. Second operand has 6 states, 6 states have (on average 416.1666666666667) internal successors, (2497), 6 states have internal predecessors, (2497), 0 states have call successors, (0), 0 states 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 10:41:42,543 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:41:42,543 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 413 of 637 [2022-11-20 10:41:42,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:41:50,512 INFO L130 PetriNetUnfolder]: 8454/13480 cut-off events. [2022-11-20 10:41:50,512 INFO L131 PetriNetUnfolder]: For 5063/5063 co-relation queries the response was YES. [2022-11-20 10:41:50,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30515 conditions, 13480 events. 8454/13480 cut-off events. For 5063/5063 co-relation queries the response was YES. Maximal size of possible extension queue 495. Compared 81473 event pairs, 4677 based on Foata normal form. 0/12921 useless extension candidates. Maximal degree in co-relation 30442. Up to 8251 conditions per place. [2022-11-20 10:41:50,619 INFO L137 encePairwiseOnDemand]: 632/637 looper letters, 102 selfloop transitions, 4 changer transitions 0/462 dead transitions. [2022-11-20 10:41:50,619 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 441 places, 462 transitions, 1228 flow [2022-11-20 10:41:50,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:41:50,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 10:41:50,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2569 transitions. [2022-11-20 10:41:50,625 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6721611721611722 [2022-11-20 10:41:50,625 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2569 transitions. [2022-11-20 10:41:50,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2569 transitions. [2022-11-20 10:41:50,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:41:50,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2569 transitions. [2022-11-20 10:41:50,628 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 428.1666666666667) internal successors, (2569), 6 states have internal predecessors, (2569), 0 states have call successors, (0), 0 states 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 10:41:50,634 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 637.0) internal successors, (4459), 7 states have internal predecessors, (4459), 0 states have call successors, (0), 0 states 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 10:41:50,635 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 637.0) internal successors, (4459), 7 states have internal predecessors, (4459), 0 states have call successors, (0), 0 states 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 10:41:50,635 INFO L175 Difference]: Start difference. First operand has 437 places, 427 transitions, 898 flow. Second operand 6 states and 2569 transitions. [2022-11-20 10:41:50,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 441 places, 462 transitions, 1228 flow [2022-11-20 10:41:50,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 462 transitions, 1221 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 10:41:50,648 INFO L231 Difference]: Finished difference. Result has 437 places, 426 transitions, 897 flow [2022-11-20 10:41:50,649 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=889, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=426, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=422, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=897, PETRI_PLACES=437, PETRI_TRANSITIONS=426} [2022-11-20 10:41:50,650 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -163 predicate places. [2022-11-20 10:41:50,650 INFO L495 AbstractCegarLoop]: Abstraction has has 437 places, 426 transitions, 897 flow [2022-11-20 10:41:50,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 416.1666666666667) internal successors, (2497), 6 states have internal predecessors, (2497), 0 states have call successors, (0), 0 states 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 10:41:50,651 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:41:50,651 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:41:50,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-20 10:41:50,652 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-20 10:41:50,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:41:50,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1349117587, now seen corresponding path program 1 times [2022-11-20 10:41:50,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:41:50,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420884418] [2022-11-20 10:41:50,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:50,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:41:50,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:51,896 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 10:41:51,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:41:51,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420884418] [2022-11-20 10:41:51,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420884418] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:41:51,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:41:51,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:41:51,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543820419] [2022-11-20 10:41:51,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:41:51,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:41:51,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:41:51,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:41:51,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:41:51,907 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 413 out of 637 [2022-11-20 10:41:51,911 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 426 transitions, 897 flow. Second operand has 6 states, 6 states have (on average 417.1666666666667) internal successors, (2503), 6 states have internal predecessors, (2503), 0 states have call successors, (0), 0 states 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 10:41:51,911 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:41:51,911 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 413 of 637 [2022-11-20 10:41:51,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:41:59,136 INFO L130 PetriNetUnfolder]: 8273/13343 cut-off events. [2022-11-20 10:41:59,136 INFO L131 PetriNetUnfolder]: For 4506/4506 co-relation queries the response was YES. [2022-11-20 10:41:59,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29557 conditions, 13343 events. 8273/13343 cut-off events. For 4506/4506 co-relation queries the response was YES. Maximal size of possible extension queue 486. Compared 81278 event pairs, 5439 based on Foata normal form. 0/12830 useless extension candidates. Maximal degree in co-relation 29484. Up to 9740 conditions per place. [2022-11-20 10:41:59,227 INFO L137 encePairwiseOnDemand]: 632/637 looper letters, 89 selfloop transitions, 4 changer transitions 0/449 dead transitions. [2022-11-20 10:41:59,227 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 441 places, 449 transitions, 1161 flow [2022-11-20 10:41:59,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:41:59,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 10:41:59,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2560 transitions. [2022-11-20 10:41:59,231 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6698063840920984 [2022-11-20 10:41:59,231 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2560 transitions. [2022-11-20 10:41:59,231 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2560 transitions. [2022-11-20 10:41:59,232 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:41:59,232 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2560 transitions. [2022-11-20 10:41:59,234 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 426.6666666666667) internal successors, (2560), 6 states have internal predecessors, (2560), 0 states have call successors, (0), 0 states 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 10:41:59,236 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 637.0) internal successors, (4459), 7 states have internal predecessors, (4459), 0 states have call successors, (0), 0 states 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 10:41:59,237 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 637.0) internal successors, (4459), 7 states have internal predecessors, (4459), 0 states have call successors, (0), 0 states 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 10:41:59,237 INFO L175 Difference]: Start difference. First operand has 437 places, 426 transitions, 897 flow. Second operand 6 states and 2560 transitions. [2022-11-20 10:41:59,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 441 places, 449 transitions, 1161 flow [2022-11-20 10:41:59,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 449 transitions, 1154 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 10:41:59,247 INFO L231 Difference]: Finished difference. Result has 437 places, 425 transitions, 896 flow [2022-11-20 10:41:59,248 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=888, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=425, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=896, PETRI_PLACES=437, PETRI_TRANSITIONS=425} [2022-11-20 10:41:59,249 INFO L288 CegarLoopForPetriNet]: 600 programPoint places, -163 predicate places. [2022-11-20 10:41:59,249 INFO L495 AbstractCegarLoop]: Abstraction has has 437 places, 425 transitions, 896 flow [2022-11-20 10:41:59,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 417.1666666666667) internal successors, (2503), 6 states have internal predecessors, (2503), 0 states have call successors, (0), 0 states 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 10:41:59,250 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:41:59,250 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:41:59,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-20 10:41:59,251 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2022-11-20 10:41:59,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:41:59,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1254205707, now seen corresponding path program 1 times [2022-11-20 10:41:59,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:41:59,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760865100] [2022-11-20 10:41:59,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:59,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:41:59,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:42:00,099 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 10:42:00,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:42:00,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760865100] [2022-11-20 10:42:00,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760865100] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:42:00,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:42:00,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:42:00,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117617876] [2022-11-20 10:42:00,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:42:00,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:42:00,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:42:00,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:42:00,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:42:00,106 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 413 out of 637 [2022-11-20 10:42:00,108 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 425 transitions, 896 flow. Second operand has 6 states, 6 states have (on average 418.1666666666667) internal successors, (2509), 6 states have internal predecessors, (2509), 0 states have call successors, (0), 0 states 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 10:42:00,108 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:42:00,108 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 413 of 637 [2022-11-20 10:42:00,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand