./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b5237d83 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_45af987a-4e42-4e0f-950f-2983ead65818/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45af987a-4e42-4e0f-950f-2983ead65818/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45af987a-4e42-4e0f-950f-2983ead65818/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45af987a-4e42-4e0f-950f-2983ead65818/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45af987a-4e42-4e0f-950f-2983ead65818/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45af987a-4e42-4e0f-950f-2983ead65818/bin/uautomizer-vX5HgA9Q3a --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 e4d7ddac57159b9ffdb625c6e71ce7282574c20e8d076ceee5f26bffd815ae46 --- 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-b5237d8 [2022-11-21 17:10:09,455 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:10:09,458 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:10:09,506 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:10:09,506 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:10:09,510 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:10:09,513 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:10:09,517 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:10:09,520 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:10:09,525 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:10:09,528 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:10:09,530 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:10:09,531 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:10:09,534 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:10:09,535 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:10:09,538 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:10:09,540 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:10:09,541 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:10:09,543 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:10:09,552 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:10:09,554 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:10:09,557 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:10:09,559 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:10:09,560 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:10:09,569 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:10:09,571 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:10:09,572 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:10:09,574 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:10:09,574 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:10:09,577 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:10:09,577 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:10:09,578 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:10:09,580 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:10:09,582 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:10:09,584 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:10:09,584 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:10:09,585 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:10:09,585 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:10:09,586 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:10:09,588 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:10:09,589 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:10:09,590 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45af987a-4e42-4e0f-950f-2983ead65818/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-21 17:10:09,634 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:10:09,634 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:10:09,635 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:10:09,636 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:10:09,637 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 17:10:09,637 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 17:10:09,638 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:10:09,638 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:10:09,639 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:10:09,639 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:10:09,640 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 17:10:09,641 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 17:10:09,641 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 17:10:09,641 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 17:10:09,641 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:10:09,642 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 17:10:09,642 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 17:10:09,642 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 17:10:09,642 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-21 17:10:09,643 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 17:10:09,643 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:10:09,643 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:10:09,643 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 17:10:09,644 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:10:09,644 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:10:09,644 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 17:10:09,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:10:09,645 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:10:09,645 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 17:10:09,646 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 17:10:09,646 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 17:10:09,646 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 17:10:09,647 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 17:10:09,647 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 17:10:09,647 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 17:10:09,647 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_45af987a-4e42-4e0f-950f-2983ead65818/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45af987a-4e42-4e0f-950f-2983ead65818/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4d7ddac57159b9ffdb625c6e71ce7282574c20e8d076ceee5f26bffd815ae46 [2022-11-21 17:10:09,997 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:10:10,039 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:10:10,042 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:10:10,044 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:10:10,045 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:10:10,046 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45af987a-4e42-4e0f-950f-2983ead65818/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.i [2022-11-21 17:10:13,496 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:10:13,829 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:10:13,829 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45af987a-4e42-4e0f-950f-2983ead65818/sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.i [2022-11-21 17:10:13,852 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45af987a-4e42-4e0f-950f-2983ead65818/bin/uautomizer-vX5HgA9Q3a/data/eed41dbab/95e9f3da4ac1475a832054510cf11269/FLAGe39a0922a [2022-11-21 17:10:13,872 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45af987a-4e42-4e0f-950f-2983ead65818/bin/uautomizer-vX5HgA9Q3a/data/eed41dbab/95e9f3da4ac1475a832054510cf11269 [2022-11-21 17:10:13,875 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:10:13,877 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:10:13,880 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:10:13,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:10:13,884 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:10:13,885 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:10:13" (1/1) ... [2022-11-21 17:10:13,886 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fefd490 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:13, skipping insertion in model container [2022-11-21 17:10:13,886 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:10:13" (1/1) ... [2022-11-21 17:10:13,895 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:10:13,965 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:10:14,710 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:10:14,724 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:10:14,787 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:10:14,921 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:10:14,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:14 WrapperNode [2022-11-21 17:10:14,923 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:10:14,925 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:10:14,925 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:10:14,925 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:10:14,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:14" (1/1) ... [2022-11-21 17:10:14,991 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:14" (1/1) ... [2022-11-21 17:10:15,045 INFO L138 Inliner]: procedures = 368, calls = 31, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 209 [2022-11-21 17:10:15,046 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:10:15,046 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:10:15,046 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:10:15,047 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:10:15,062 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:14" (1/1) ... [2022-11-21 17:10:15,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:14" (1/1) ... [2022-11-21 17:10:15,084 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:14" (1/1) ... [2022-11-21 17:10:15,084 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:14" (1/1) ... [2022-11-21 17:10:15,121 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:14" (1/1) ... [2022-11-21 17:10:15,131 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:14" (1/1) ... [2022-11-21 17:10:15,133 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:14" (1/1) ... [2022-11-21 17:10:15,135 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:14" (1/1) ... [2022-11-21 17:10:15,138 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:10:15,139 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:10:15,139 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:10:15,140 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:10:15,141 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:14" (1/1) ... [2022-11-21 17:10:15,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:10:15,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45af987a-4e42-4e0f-950f-2983ead65818/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:10:15,192 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45af987a-4e42-4e0f-950f-2983ead65818/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 17:10:15,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45af987a-4e42-4e0f-950f-2983ead65818/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 17:10:15,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 17:10:15,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-21 17:10:15,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 17:10:15,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 17:10:15,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 17:10:15,243 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-21 17:10:15,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 17:10:15,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 17:10:15,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-21 17:10:15,244 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-21 17:10:15,244 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-21 17:10:15,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 17:10:15,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:10:15,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:10:15,246 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 17:10:15,458 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:10:15,461 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:10:16,099 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:10:16,113 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:10:16,117 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 17:10:16,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:10:16 BoogieIcfgContainer [2022-11-21 17:10:16,122 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:10:16,124 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 17:10:16,125 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 17:10:16,129 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 17:10:16,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:10:13" (1/3) ... [2022-11-21 17:10:16,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ce13517 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:10:16, skipping insertion in model container [2022-11-21 17:10:16,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:14" (2/3) ... [2022-11-21 17:10:16,133 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ce13517 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:10:16, skipping insertion in model container [2022-11-21 17:10:16,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:10:16" (3/3) ... [2022-11-21 17:10:16,139 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_06-ptra_nr.i [2022-11-21 17:10:16,150 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 17:10:16,161 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 17:10:16,161 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-11-21 17:10:16,161 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 17:10:16,287 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-21 17:10:16,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 252 places, 248 transitions, 501 flow [2022-11-21 17:10:16,429 INFO L130 PetriNetUnfolder]: 0/247 cut-off events. [2022-11-21 17:10:16,429 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 17:10:16,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 251 conditions, 247 events. 0/247 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 93 event pairs, 0 based on Foata normal form. 0/225 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-21 17:10:16,433 INFO L82 GeneralOperation]: Start removeDead. Operand has 252 places, 248 transitions, 501 flow [2022-11-21 17:10:16,439 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 251 places, 247 transitions, 497 flow [2022-11-21 17:10:16,458 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 17:10:16,464 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;@1a8c048e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 17:10:16,465 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2022-11-21 17:10:16,476 INFO L130 PetriNetUnfolder]: 0/43 cut-off events. [2022-11-21 17:10:16,476 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 17:10:16,477 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:10:16,478 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:10:16,478 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-21 17:10:16,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:10:16,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1292603453, now seen corresponding path program 1 times [2022-11-21 17:10:16,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:10:16,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629025487] [2022-11-21 17:10:16,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:16,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:10:16,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:17,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:10:17,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:10:17,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629025487] [2022-11-21 17:10:17,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629025487] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:10:17,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:10:17,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 17:10:17,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324455846] [2022-11-21 17:10:17,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:10:17,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:10:17,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:10:17,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:10:17,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:10:17,682 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 248 [2022-11-21 17:10:17,689 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 247 transitions, 497 flow. Second operand has 6 states, 6 states have (on average 146.5) internal successors, (879), 6 states have internal predecessors, (879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:17,690 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:10:17,690 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 248 [2022-11-21 17:10:17,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:10:18,486 INFO L130 PetriNetUnfolder]: 360/1333 cut-off events. [2022-11-21 17:10:18,487 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-21 17:10:18,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2158 conditions, 1333 events. 360/1333 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 6837 event pairs, 360 based on Foata normal form. 0/1158 useless extension candidates. Maximal degree in co-relation 1956. Up to 806 conditions per place. [2022-11-21 17:10:18,505 INFO L137 encePairwiseOnDemand]: 230/248 looper letters, 85 selfloop transitions, 15 changer transitions 0/244 dead transitions. [2022-11-21 17:10:18,505 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 244 transitions, 691 flow [2022-11-21 17:10:18,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 17:10:18,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 17:10:18,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 973 transitions. [2022-11-21 17:10:18,531 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6538978494623656 [2022-11-21 17:10:18,532 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 973 transitions. [2022-11-21 17:10:18,533 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 973 transitions. [2022-11-21 17:10:18,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:10:18,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 973 transitions. [2022-11-21 17:10:18,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 162.16666666666666) internal successors, (973), 6 states have internal predecessors, (973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:18,553 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:18,554 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:18,556 INFO L175 Difference]: Start difference. First operand has 251 places, 247 transitions, 497 flow. Second operand 6 states and 973 transitions. [2022-11-21 17:10:18,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 244 transitions, 691 flow [2022-11-21 17:10:18,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 244 transitions, 690 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 17:10:18,567 INFO L231 Difference]: Finished difference. Result has 252 places, 244 transitions, 520 flow [2022-11-21 17:10:18,569 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=520, PETRI_PLACES=252, PETRI_TRANSITIONS=244} [2022-11-21 17:10:18,573 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, 1 predicate places. [2022-11-21 17:10:18,573 INFO L495 AbstractCegarLoop]: Abstraction has has 252 places, 244 transitions, 520 flow [2022-11-21 17:10:18,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 146.5) internal successors, (879), 6 states have internal predecessors, (879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:18,574 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:10:18,575 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] [2022-11-21 17:10:18,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 17:10:18,575 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-21 17:10:18,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:10:18,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1004537384, now seen corresponding path program 1 times [2022-11-21 17:10:18,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:10:18,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134124570] [2022-11-21 17:10:18,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:18,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:10:18,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:19,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:10:19,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:10:19,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134124570] [2022-11-21 17:10:19,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134124570] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:10:19,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:10:19,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 17:10:19,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383669468] [2022-11-21 17:10:19,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:10:19,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:10:19,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:10:19,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:10:19,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:10:19,164 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 248 [2022-11-21 17:10:19,166 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 244 transitions, 520 flow. Second operand has 6 states, 6 states have (on average 147.5) internal successors, (885), 6 states have internal predecessors, (885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:19,167 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:10:19,167 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 248 [2022-11-21 17:10:19,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:10:19,689 INFO L130 PetriNetUnfolder]: 360/1330 cut-off events. [2022-11-21 17:10:19,689 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-21 17:10:19,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2167 conditions, 1330 events. 360/1330 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 6879 event pairs, 360 based on Foata normal form. 0/1158 useless extension candidates. Maximal degree in co-relation 1980. Up to 803 conditions per place. [2022-11-21 17:10:19,697 INFO L137 encePairwiseOnDemand]: 230/248 looper letters, 82 selfloop transitions, 15 changer transitions 0/241 dead transitions. [2022-11-21 17:10:19,697 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 241 transitions, 708 flow [2022-11-21 17:10:19,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 17:10:19,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 17:10:19,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 970 transitions. [2022-11-21 17:10:19,700 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6518817204301075 [2022-11-21 17:10:19,701 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 970 transitions. [2022-11-21 17:10:19,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 970 transitions. [2022-11-21 17:10:19,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:10:19,702 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 970 transitions. [2022-11-21 17:10:19,704 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 161.66666666666666) internal successors, (970), 6 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:19,707 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:19,709 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:19,709 INFO L175 Difference]: Start difference. First operand has 252 places, 244 transitions, 520 flow. Second operand 6 states and 970 transitions. [2022-11-21 17:10:19,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 241 transitions, 708 flow [2022-11-21 17:10:19,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 241 transitions, 678 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 17:10:19,716 INFO L231 Difference]: Finished difference. Result has 249 places, 241 transitions, 514 flow [2022-11-21 17:10:19,716 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=514, PETRI_PLACES=249, PETRI_TRANSITIONS=241} [2022-11-21 17:10:19,717 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, -2 predicate places. [2022-11-21 17:10:19,718 INFO L495 AbstractCegarLoop]: Abstraction has has 249 places, 241 transitions, 514 flow [2022-11-21 17:10:19,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 147.5) internal successors, (885), 6 states have internal predecessors, (885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:19,718 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:10:19,719 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] [2022-11-21 17:10:19,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 17:10:19,719 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-21 17:10:19,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:10:19,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1921770962, now seen corresponding path program 1 times [2022-11-21 17:10:19,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:10:19,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734405009] [2022-11-21 17:10:19,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:19,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:10:19,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:19,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:10:19,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:10:19,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734405009] [2022-11-21 17:10:19,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734405009] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:10:19,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:10:19,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 17:10:19,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121756711] [2022-11-21 17:10:19,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:10:19,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:10:19,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:10:19,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:10:19,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:10:19,791 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 248 [2022-11-21 17:10:19,792 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 241 transitions, 514 flow. Second operand has 3 states, 3 states have (on average 227.33333333333334) internal successors, (682), 3 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:19,792 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:10:19,792 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 248 [2022-11-21 17:10:19,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:10:19,883 INFO L130 PetriNetUnfolder]: 18/391 cut-off events. [2022-11-21 17:10:19,884 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 17:10:19,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 468 conditions, 391 events. 18/391 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 815 event pairs, 18 based on Foata normal form. 0/350 useless extension candidates. Maximal degree in co-relation 309. Up to 56 conditions per place. [2022-11-21 17:10:19,886 INFO L137 encePairwiseOnDemand]: 245/248 looper letters, 19 selfloop transitions, 2 changer transitions 0/240 dead transitions. [2022-11-21 17:10:19,886 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 240 transitions, 554 flow [2022-11-21 17:10:19,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:10:19,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 17:10:19,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 700 transitions. [2022-11-21 17:10:19,889 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9408602150537635 [2022-11-21 17:10:19,889 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 700 transitions. [2022-11-21 17:10:19,889 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 700 transitions. [2022-11-21 17:10:19,890 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:10:19,890 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 700 transitions. [2022-11-21 17:10:19,892 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 233.33333333333334) internal successors, (700), 3 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:19,894 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:19,894 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:19,895 INFO L175 Difference]: Start difference. First operand has 249 places, 241 transitions, 514 flow. Second operand 3 states and 700 transitions. [2022-11-21 17:10:19,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 240 transitions, 554 flow [2022-11-21 17:10:19,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 240 transitions, 524 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 17:10:19,901 INFO L231 Difference]: Finished difference. Result has 245 places, 240 transitions, 486 flow [2022-11-21 17:10:19,901 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=482, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=486, PETRI_PLACES=245, PETRI_TRANSITIONS=240} [2022-11-21 17:10:19,902 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, -6 predicate places. [2022-11-21 17:10:19,902 INFO L495 AbstractCegarLoop]: Abstraction has has 245 places, 240 transitions, 486 flow [2022-11-21 17:10:19,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 227.33333333333334) internal successors, (682), 3 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:19,903 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:10:19,904 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] [2022-11-21 17:10:19,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 17:10:19,904 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-21 17:10:19,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:10:19,905 INFO L85 PathProgramCache]: Analyzing trace with hash -599217216, now seen corresponding path program 1 times [2022-11-21 17:10:19,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:10:19,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071618909] [2022-11-21 17:10:19,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:19,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:10:19,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:19,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:10:19,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:10:19,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071618909] [2022-11-21 17:10:19,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071618909] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:10:19,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:10:19,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 17:10:19,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082049952] [2022-11-21 17:10:19,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:10:19,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:10:19,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:10:19,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:10:19,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:10:19,958 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 248 [2022-11-21 17:10:19,959 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 240 transitions, 486 flow. Second operand has 3 states, 3 states have (on average 230.33333333333334) internal successors, (691), 3 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:19,959 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:10:19,960 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 248 [2022-11-21 17:10:19,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:10:20,050 INFO L130 PetriNetUnfolder]: 8/336 cut-off events. [2022-11-21 17:10:20,051 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-21 17:10:20,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 372 conditions, 336 events. 8/336 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 496 event pairs, 8 based on Foata normal form. 0/316 useless extension candidates. Maximal degree in co-relation 304. Up to 27 conditions per place. [2022-11-21 17:10:20,052 INFO L137 encePairwiseOnDemand]: 242/248 looper letters, 12 selfloop transitions, 1 changer transitions 0/235 dead transitions. [2022-11-21 17:10:20,052 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 235 transitions, 502 flow [2022-11-21 17:10:20,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:10:20,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 17:10:20,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 705 transitions. [2022-11-21 17:10:20,055 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9475806451612904 [2022-11-21 17:10:20,055 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 705 transitions. [2022-11-21 17:10:20,055 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 705 transitions. [2022-11-21 17:10:20,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:10:20,057 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 705 transitions. [2022-11-21 17:10:20,062 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 235.0) internal successors, (705), 3 states have internal predecessors, (705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:20,064 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:20,065 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:20,065 INFO L175 Difference]: Start difference. First operand has 245 places, 240 transitions, 486 flow. Second operand 3 states and 705 transitions. [2022-11-21 17:10:20,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 235 transitions, 502 flow [2022-11-21 17:10:20,067 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 235 transitions, 498 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 17:10:20,070 INFO L231 Difference]: Finished difference. Result has 240 places, 235 transitions, 474 flow [2022-11-21 17:10:20,071 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=472, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=474, PETRI_PLACES=240, PETRI_TRANSITIONS=235} [2022-11-21 17:10:20,073 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, -11 predicate places. [2022-11-21 17:10:20,074 INFO L495 AbstractCegarLoop]: Abstraction has has 240 places, 235 transitions, 474 flow [2022-11-21 17:10:20,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 230.33333333333334) internal successors, (691), 3 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:20,076 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:10:20,077 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:10:20,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 17:10:20,077 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-21 17:10:20,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:10:20,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1655649905, now seen corresponding path program 1 times [2022-11-21 17:10:20,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:10:20,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171286274] [2022-11-21 17:10:20,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:20,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:10:20,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:20,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:10:20,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:10:20,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171286274] [2022-11-21 17:10:20,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171286274] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:10:20,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:10:20,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 17:10:20,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999003610] [2022-11-21 17:10:20,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:10:20,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:10:20,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:10:20,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:10:20,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:10:20,754 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 248 [2022-11-21 17:10:20,756 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 235 transitions, 474 flow. Second operand has 6 states, 6 states have (on average 158.16666666666666) internal successors, (949), 6 states have internal predecessors, (949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:20,756 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:10:20,756 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 248 [2022-11-21 17:10:20,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:10:21,324 INFO L130 PetriNetUnfolder]: 416/1410 cut-off events. [2022-11-21 17:10:21,324 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 17:10:21,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2336 conditions, 1410 events. 416/1410 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 7051 event pairs, 416 based on Foata normal form. 0/1259 useless extension candidates. Maximal degree in co-relation 2257. Up to 916 conditions per place. [2022-11-21 17:10:21,334 INFO L137 encePairwiseOnDemand]: 242/248 looper letters, 83 selfloop transitions, 5 changer transitions 0/234 dead transitions. [2022-11-21 17:10:21,334 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 234 transitions, 648 flow [2022-11-21 17:10:21,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 17:10:21,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 17:10:21,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1007 transitions. [2022-11-21 17:10:21,338 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.676747311827957 [2022-11-21 17:10:21,338 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1007 transitions. [2022-11-21 17:10:21,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1007 transitions. [2022-11-21 17:10:21,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:10:21,339 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1007 transitions. [2022-11-21 17:10:21,343 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 167.83333333333334) internal successors, (1007), 6 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:21,347 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:21,348 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:21,349 INFO L175 Difference]: Start difference. First operand has 240 places, 235 transitions, 474 flow. Second operand 6 states and 1007 transitions. [2022-11-21 17:10:21,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 234 transitions, 648 flow [2022-11-21 17:10:21,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 234 transitions, 647 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 17:10:21,356 INFO L231 Difference]: Finished difference. Result has 243 places, 234 transitions, 481 flow [2022-11-21 17:10:21,357 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=471, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=481, PETRI_PLACES=243, PETRI_TRANSITIONS=234} [2022-11-21 17:10:21,360 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, -8 predicate places. [2022-11-21 17:10:21,360 INFO L495 AbstractCegarLoop]: Abstraction has has 243 places, 234 transitions, 481 flow [2022-11-21 17:10:21,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 158.16666666666666) internal successors, (949), 6 states have internal predecessors, (949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:21,361 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:10:21,361 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:10:21,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 17:10:21,362 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-21 17:10:21,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:10:21,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1719227292, now seen corresponding path program 1 times [2022-11-21 17:10:21,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:10:21,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369108612] [2022-11-21 17:10:21,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:21,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:10:21,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:21,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:10:21,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:10:21,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369108612] [2022-11-21 17:10:21,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369108612] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:10:21,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:10:21,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 17:10:21,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291859425] [2022-11-21 17:10:21,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:10:21,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:10:21,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:10:21,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:10:21,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:10:21,476 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 248 [2022-11-21 17:10:21,477 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 234 transitions, 481 flow. Second operand has 3 states, 3 states have (on average 239.33333333333334) internal successors, (718), 3 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:21,477 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:10:21,477 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 248 [2022-11-21 17:10:21,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:10:21,522 INFO L130 PetriNetUnfolder]: 0/233 cut-off events. [2022-11-21 17:10:21,523 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 17:10:21,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 253 conditions, 233 events. 0/233 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 80 event pairs, 0 based on Foata normal form. 0/225 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2022-11-21 17:10:21,524 INFO L137 encePairwiseOnDemand]: 245/248 looper letters, 7 selfloop transitions, 2 changer transitions 0/233 dead transitions. [2022-11-21 17:10:21,524 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 233 transitions, 497 flow [2022-11-21 17:10:21,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:10:21,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 17:10:21,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 724 transitions. [2022-11-21 17:10:21,527 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9731182795698925 [2022-11-21 17:10:21,527 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 724 transitions. [2022-11-21 17:10:21,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 724 transitions. [2022-11-21 17:10:21,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:10:21,528 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 724 transitions. [2022-11-21 17:10:21,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 241.33333333333334) internal successors, (724), 3 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:21,532 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:21,533 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:21,533 INFO L175 Difference]: Start difference. First operand has 243 places, 234 transitions, 481 flow. Second operand 3 states and 724 transitions. [2022-11-21 17:10:21,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 233 transitions, 497 flow [2022-11-21 17:10:21,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 233 transitions, 487 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 17:10:21,539 INFO L231 Difference]: Finished difference. Result has 239 places, 233 transitions, 473 flow [2022-11-21 17:10:21,539 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=469, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=473, PETRI_PLACES=239, PETRI_TRANSITIONS=233} [2022-11-21 17:10:21,543 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, -12 predicate places. [2022-11-21 17:10:21,543 INFO L495 AbstractCegarLoop]: Abstraction has has 239 places, 233 transitions, 473 flow [2022-11-21 17:10:21,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 239.33333333333334) internal successors, (718), 3 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:21,544 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:10:21,544 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:10:21,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 17:10:21,545 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-21 17:10:21,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:10:21,546 INFO L85 PathProgramCache]: Analyzing trace with hash -457398828, now seen corresponding path program 1 times [2022-11-21 17:10:21,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:10:21,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748675847] [2022-11-21 17:10:21,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:21,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:10:21,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:21,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:10:21,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:10:21,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748675847] [2022-11-21 17:10:21,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748675847] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:10:21,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:10:21,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 17:10:21,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904102251] [2022-11-21 17:10:21,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:10:21,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:10:21,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:10:21,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:10:21,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:10:21,647 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 248 [2022-11-21 17:10:21,648 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 233 transitions, 473 flow. Second operand has 3 states, 3 states have (on average 242.33333333333334) internal successors, (727), 3 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:21,648 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:10:21,649 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 248 [2022-11-21 17:10:21,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:10:21,691 INFO L130 PetriNetUnfolder]: 0/232 cut-off events. [2022-11-21 17:10:21,691 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-21 17:10:21,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 245 conditions, 232 events. 0/232 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 79 event pairs, 0 based on Foata normal form. 0/225 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2022-11-21 17:10:21,692 INFO L137 encePairwiseOnDemand]: 246/248 looper letters, 4 selfloop transitions, 1 changer transitions 0/232 dead transitions. [2022-11-21 17:10:21,692 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 232 transitions, 481 flow [2022-11-21 17:10:21,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:10:21,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 17:10:21,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 729 transitions. [2022-11-21 17:10:21,695 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9798387096774194 [2022-11-21 17:10:21,695 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 729 transitions. [2022-11-21 17:10:21,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 729 transitions. [2022-11-21 17:10:21,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:10:21,696 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 729 transitions. [2022-11-21 17:10:21,698 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 243.0) internal successors, (729), 3 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:21,702 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:21,703 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:21,703 INFO L175 Difference]: Start difference. First operand has 239 places, 233 transitions, 473 flow. Second operand 3 states and 729 transitions. [2022-11-21 17:10:21,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 232 transitions, 481 flow [2022-11-21 17:10:21,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 232 transitions, 477 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 17:10:21,710 INFO L231 Difference]: Finished difference. Result has 238 places, 232 transitions, 469 flow [2022-11-21 17:10:21,710 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=467, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=469, PETRI_PLACES=238, PETRI_TRANSITIONS=232} [2022-11-21 17:10:21,711 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, -13 predicate places. [2022-11-21 17:10:21,711 INFO L495 AbstractCegarLoop]: Abstraction has has 238 places, 232 transitions, 469 flow [2022-11-21 17:10:21,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 242.33333333333334) internal successors, (727), 3 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:21,712 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:10:21,712 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:10:21,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 17:10:21,713 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-21 17:10:21,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:10:21,713 INFO L85 PathProgramCache]: Analyzing trace with hash -430693432, now seen corresponding path program 1 times [2022-11-21 17:10:21,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:10:21,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435550548] [2022-11-21 17:10:21,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:21,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:10:21,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:22,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:10:22,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:10:22,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435550548] [2022-11-21 17:10:22,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435550548] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:10:22,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:10:22,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 17:10:22,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719901187] [2022-11-21 17:10:22,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:10:22,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:10:22,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:10:22,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:10:22,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:10:22,635 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 248 [2022-11-21 17:10:22,636 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 232 transitions, 469 flow. Second operand has 6 states, 6 states have (on average 163.66666666666666) internal successors, (982), 6 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:22,637 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:10:22,637 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 248 [2022-11-21 17:10:22,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:10:23,695 INFO L130 PetriNetUnfolder]: 748/2427 cut-off events. [2022-11-21 17:10:23,695 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 17:10:23,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4066 conditions, 2427 events. 748/2427 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 15221 event pairs, 76 based on Foata normal form. 0/2180 useless extension candidates. Maximal degree in co-relation 3988. Up to 791 conditions per place. [2022-11-21 17:10:23,707 INFO L137 encePairwiseOnDemand]: 220/248 looper letters, 171 selfloop transitions, 70 changer transitions 0/388 dead transitions. [2022-11-21 17:10:23,707 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 388 transitions, 1263 flow [2022-11-21 17:10:23,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 17:10:23,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 17:10:23,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1179 transitions. [2022-11-21 17:10:23,711 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7923387096774194 [2022-11-21 17:10:23,711 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1179 transitions. [2022-11-21 17:10:23,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1179 transitions. [2022-11-21 17:10:23,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:10:23,712 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1179 transitions. [2022-11-21 17:10:23,715 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 196.5) internal successors, (1179), 6 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:23,718 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:23,719 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:23,719 INFO L175 Difference]: Start difference. First operand has 238 places, 232 transitions, 469 flow. Second operand 6 states and 1179 transitions. [2022-11-21 17:10:23,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 388 transitions, 1263 flow [2022-11-21 17:10:23,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 388 transitions, 1262 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 17:10:23,727 INFO L231 Difference]: Finished difference. Result has 246 places, 302 transitions, 946 flow [2022-11-21 17:10:23,728 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=466, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=946, PETRI_PLACES=246, PETRI_TRANSITIONS=302} [2022-11-21 17:10:23,730 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, -5 predicate places. [2022-11-21 17:10:23,731 INFO L495 AbstractCegarLoop]: Abstraction has has 246 places, 302 transitions, 946 flow [2022-11-21 17:10:23,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 163.66666666666666) internal successors, (982), 6 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:23,731 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:10:23,732 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:10:23,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 17:10:23,732 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-21 17:10:23,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:10:23,733 INFO L85 PathProgramCache]: Analyzing trace with hash -432670038, now seen corresponding path program 1 times [2022-11-21 17:10:23,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:10:23,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385357223] [2022-11-21 17:10:23,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:23,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:10:23,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:24,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:10:24,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:10:24,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385357223] [2022-11-21 17:10:24,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385357223] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:10:24,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:10:24,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 17:10:24,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840534475] [2022-11-21 17:10:24,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:10:24,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:10:24,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:10:24,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:10:24,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:10:24,485 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 248 [2022-11-21 17:10:24,486 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 302 transitions, 946 flow. Second operand has 6 states, 6 states have (on average 164.5) internal successors, (987), 6 states have internal predecessors, (987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:24,486 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:10:24,486 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 248 [2022-11-21 17:10:24,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:10:25,358 INFO L130 PetriNetUnfolder]: 836/2741 cut-off events. [2022-11-21 17:10:25,358 INFO L131 PetriNetUnfolder]: For 879/879 co-relation queries the response was YES. [2022-11-21 17:10:25,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5985 conditions, 2741 events. 836/2741 cut-off events. For 879/879 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 17638 event pairs, 379 based on Foata normal form. 0/2556 useless extension candidates. Maximal degree in co-relation 5905. Up to 1700 conditions per place. [2022-11-21 17:10:25,375 INFO L137 encePairwiseOnDemand]: 233/248 looper letters, 166 selfloop transitions, 48 changer transitions 0/362 dead transitions. [2022-11-21 17:10:25,375 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 362 transitions, 1590 flow [2022-11-21 17:10:25,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 17:10:25,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 17:10:25,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1079 transitions. [2022-11-21 17:10:25,378 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7251344086021505 [2022-11-21 17:10:25,378 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1079 transitions. [2022-11-21 17:10:25,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1079 transitions. [2022-11-21 17:10:25,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:10:25,379 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1079 transitions. [2022-11-21 17:10:25,382 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 179.83333333333334) internal successors, (1079), 6 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:25,385 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:25,386 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:25,386 INFO L175 Difference]: Start difference. First operand has 246 places, 302 transitions, 946 flow. Second operand 6 states and 1079 transitions. [2022-11-21 17:10:25,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 362 transitions, 1590 flow [2022-11-21 17:10:25,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 362 transitions, 1590 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 17:10:25,405 INFO L231 Difference]: Finished difference. Result has 256 places, 345 transitions, 1334 flow [2022-11-21 17:10:25,405 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=946, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1334, PETRI_PLACES=256, PETRI_TRANSITIONS=345} [2022-11-21 17:10:25,407 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, 5 predicate places. [2022-11-21 17:10:25,407 INFO L495 AbstractCegarLoop]: Abstraction has has 256 places, 345 transitions, 1334 flow [2022-11-21 17:10:25,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 164.5) internal successors, (987), 6 states have internal predecessors, (987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:25,408 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:10:25,408 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] [2022-11-21 17:10:25,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 17:10:25,408 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-21 17:10:25,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:10:25,409 INFO L85 PathProgramCache]: Analyzing trace with hash -762713712, now seen corresponding path program 1 times [2022-11-21 17:10:25,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:10:25,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586348114] [2022-11-21 17:10:25,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:25,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:10:25,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:26,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:10:26,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:10:26,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586348114] [2022-11-21 17:10:26,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586348114] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:10:26,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:10:26,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 17:10:26,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858829922] [2022-11-21 17:10:26,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:10:26,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:10:26,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:10:26,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:10:26,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:10:26,034 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 248 [2022-11-21 17:10:26,035 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 345 transitions, 1334 flow. Second operand has 6 states, 6 states have (on average 165.66666666666666) internal successors, (994), 6 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:26,035 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:10:26,035 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 248 [2022-11-21 17:10:26,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:10:27,336 INFO L130 PetriNetUnfolder]: 985/3392 cut-off events. [2022-11-21 17:10:27,336 INFO L131 PetriNetUnfolder]: For 2072/2188 co-relation queries the response was YES. [2022-11-21 17:10:27,347 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8255 conditions, 3392 events. 985/3392 cut-off events. For 2072/2188 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 24019 event pairs, 172 based on Foata normal form. 0/3253 useless extension candidates. Maximal degree in co-relation 8167. Up to 1579 conditions per place. [2022-11-21 17:10:27,362 INFO L137 encePairwiseOnDemand]: 226/248 looper letters, 272 selfloop transitions, 135 changer transitions 4/560 dead transitions. [2022-11-21 17:10:27,363 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 560 transitions, 3248 flow [2022-11-21 17:10:27,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 17:10:27,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 17:10:27,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1146 transitions. [2022-11-21 17:10:27,367 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7701612903225806 [2022-11-21 17:10:27,367 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1146 transitions. [2022-11-21 17:10:27,367 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1146 transitions. [2022-11-21 17:10:27,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:10:27,368 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1146 transitions. [2022-11-21 17:10:27,371 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 191.0) internal successors, (1146), 6 states have internal predecessors, (1146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:27,374 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:27,375 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:27,376 INFO L175 Difference]: Start difference. First operand has 256 places, 345 transitions, 1334 flow. Second operand 6 states and 1146 transitions. [2022-11-21 17:10:27,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 560 transitions, 3248 flow [2022-11-21 17:10:27,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 261 places, 560 transitions, 3230 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-11-21 17:10:27,401 INFO L231 Difference]: Finished difference. Result has 266 places, 475 transitions, 2674 flow [2022-11-21 17:10:27,402 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=1316, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=345, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2674, PETRI_PLACES=266, PETRI_TRANSITIONS=475} [2022-11-21 17:10:27,403 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, 15 predicate places. [2022-11-21 17:10:27,406 INFO L495 AbstractCegarLoop]: Abstraction has has 266 places, 475 transitions, 2674 flow [2022-11-21 17:10:27,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 165.66666666666666) internal successors, (994), 6 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:27,407 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:10:27,408 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] [2022-11-21 17:10:27,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-21 17:10:27,408 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-21 17:10:27,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:10:27,409 INFO L85 PathProgramCache]: Analyzing trace with hash 29735855, now seen corresponding path program 1 times [2022-11-21 17:10:27,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:10:27,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862644344] [2022-11-21 17:10:27,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:27,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:10:27,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:28,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:10:28,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:10:28,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862644344] [2022-11-21 17:10:28,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862644344] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:10:28,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:10:28,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 17:10:28,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941550108] [2022-11-21 17:10:28,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:10:28,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:10:28,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:10:28,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:10:28,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:10:28,053 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 248 [2022-11-21 17:10:28,055 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 475 transitions, 2674 flow. Second operand has 6 states, 6 states have (on average 165.5) internal successors, (993), 6 states have internal predecessors, (993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:28,055 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:10:28,055 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 248 [2022-11-21 17:10:28,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:10:29,212 INFO L130 PetriNetUnfolder]: 1055/3531 cut-off events. [2022-11-21 17:10:29,212 INFO L131 PetriNetUnfolder]: For 3965/4034 co-relation queries the response was YES. [2022-11-21 17:10:29,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10396 conditions, 3531 events. 1055/3531 cut-off events. For 3965/4034 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 25102 event pairs, 258 based on Foata normal form. 0/3438 useless extension candidates. Maximal degree in co-relation 10306. Up to 2152 conditions per place. [2022-11-21 17:10:29,253 INFO L137 encePairwiseOnDemand]: 233/248 looper letters, 331 selfloop transitions, 62 changer transitions 0/542 dead transitions. [2022-11-21 17:10:29,254 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 542 transitions, 3874 flow [2022-11-21 17:10:29,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 17:10:29,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 17:10:29,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1079 transitions. [2022-11-21 17:10:29,258 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7251344086021505 [2022-11-21 17:10:29,258 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1079 transitions. [2022-11-21 17:10:29,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1079 transitions. [2022-11-21 17:10:29,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:10:29,259 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1079 transitions. [2022-11-21 17:10:29,262 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 179.83333333333334) internal successors, (1079), 6 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:29,266 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:29,267 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:29,267 INFO L175 Difference]: Start difference. First operand has 266 places, 475 transitions, 2674 flow. Second operand 6 states and 1079 transitions. [2022-11-21 17:10:29,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 542 transitions, 3874 flow [2022-11-21 17:10:29,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 542 transitions, 3838 flow, removed 18 selfloop flow, removed 0 redundant places. [2022-11-21 17:10:29,311 INFO L231 Difference]: Finished difference. Result has 276 places, 524 transitions, 3264 flow [2022-11-21 17:10:29,312 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=2638, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=475, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=437, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3264, PETRI_PLACES=276, PETRI_TRANSITIONS=524} [2022-11-21 17:10:29,312 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, 25 predicate places. [2022-11-21 17:10:29,313 INFO L495 AbstractCegarLoop]: Abstraction has has 276 places, 524 transitions, 3264 flow [2022-11-21 17:10:29,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 165.5) internal successors, (993), 6 states have internal predecessors, (993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:29,313 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:10:29,314 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] [2022-11-21 17:10:29,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-21 17:10:29,314 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-21 17:10:29,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:10:29,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1030604795, now seen corresponding path program 1 times [2022-11-21 17:10:29,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:10:29,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203268339] [2022-11-21 17:10:29,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:29,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:10:29,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:31,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:10:31,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:10:31,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203268339] [2022-11-21 17:10:31,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203268339] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:10:31,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:10:31,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 17:10:31,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341769222] [2022-11-21 17:10:31,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:10:31,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 17:10:31,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:10:31,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 17:10:31,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-21 17:10:31,184 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 248 [2022-11-21 17:10:31,187 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 524 transitions, 3264 flow. Second operand has 13 states, 13 states have (on average 142.76923076923077) internal successors, (1856), 13 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:31,187 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:10:31,188 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 248 [2022-11-21 17:10:31,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:10:35,268 INFO L130 PetriNetUnfolder]: 2033/6688 cut-off events. [2022-11-21 17:10:35,268 INFO L131 PetriNetUnfolder]: For 10476/10587 co-relation queries the response was YES. [2022-11-21 17:10:35,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20950 conditions, 6688 events. 2033/6688 cut-off events. For 10476/10587 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 56723 event pairs, 291 based on Foata normal form. 43/6614 useless extension candidates. Maximal degree in co-relation 20846. Up to 1329 conditions per place. [2022-11-21 17:10:35,338 INFO L137 encePairwiseOnDemand]: 212/248 looper letters, 756 selfloop transitions, 251 changer transitions 4/1142 dead transitions. [2022-11-21 17:10:35,338 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 1142 transitions, 9952 flow [2022-11-21 17:10:35,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-21 17:10:35,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2022-11-21 17:10:35,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 3893 transitions. [2022-11-21 17:10:35,347 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6279032258064516 [2022-11-21 17:10:35,347 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 3893 transitions. [2022-11-21 17:10:35,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 3893 transitions. [2022-11-21 17:10:35,350 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:10:35,350 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 3893 transitions. [2022-11-21 17:10:35,358 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 155.72) internal successors, (3893), 25 states have internal predecessors, (3893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:35,368 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 248.0) internal successors, (6448), 26 states have internal predecessors, (6448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:35,371 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 248.0) internal successors, (6448), 26 states have internal predecessors, (6448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:35,372 INFO L175 Difference]: Start difference. First operand has 276 places, 524 transitions, 3264 flow. Second operand 25 states and 3893 transitions. [2022-11-21 17:10:35,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 1142 transitions, 9952 flow [2022-11-21 17:10:35,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 1142 transitions, 9728 flow, removed 112 selfloop flow, removed 0 redundant places. [2022-11-21 17:10:35,512 INFO L231 Difference]: Finished difference. Result has 321 places, 697 transitions, 5826 flow [2022-11-21 17:10:35,513 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=3152, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=524, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=350, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=5826, PETRI_PLACES=321, PETRI_TRANSITIONS=697} [2022-11-21 17:10:35,514 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, 70 predicate places. [2022-11-21 17:10:35,514 INFO L495 AbstractCegarLoop]: Abstraction has has 321 places, 697 transitions, 5826 flow [2022-11-21 17:10:35,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 142.76923076923077) internal successors, (1856), 13 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:35,516 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:10:35,516 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] [2022-11-21 17:10:35,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-21 17:10:35,516 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-21 17:10:35,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:10:35,517 INFO L85 PathProgramCache]: Analyzing trace with hash -363914509, now seen corresponding path program 2 times [2022-11-21 17:10:35,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:10:35,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339378986] [2022-11-21 17:10:35,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:35,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:10:35,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:36,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:10:36,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:10:36,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339378986] [2022-11-21 17:10:36,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339378986] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:10:36,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:10:36,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 17:10:36,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943158274] [2022-11-21 17:10:36,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:10:36,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 17:10:36,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:10:36,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 17:10:36,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-21 17:10:36,707 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 248 [2022-11-21 17:10:36,709 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 697 transitions, 5826 flow. Second operand has 13 states, 13 states have (on average 142.76923076923077) internal successors, (1856), 13 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:36,709 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:10:36,709 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 248 [2022-11-21 17:10:36,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:10:41,391 INFO L130 PetriNetUnfolder]: 2140/6927 cut-off events. [2022-11-21 17:10:41,391 INFO L131 PetriNetUnfolder]: For 16585/16744 co-relation queries the response was YES. [2022-11-21 17:10:41,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24546 conditions, 6927 events. 2140/6927 cut-off events. For 16585/16744 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 58654 event pairs, 291 based on Foata normal form. 56/6867 useless extension candidates. Maximal degree in co-relation 24417. Up to 2228 conditions per place. [2022-11-21 17:10:41,518 INFO L137 encePairwiseOnDemand]: 218/248 looper letters, 779 selfloop transitions, 219 changer transitions 7/1136 dead transitions. [2022-11-21 17:10:41,519 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 1136 transitions, 11134 flow [2022-11-21 17:10:41,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-21 17:10:41,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2022-11-21 17:10:41,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 4441 transitions. [2022-11-21 17:10:41,534 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6174916573971079 [2022-11-21 17:10:41,534 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 4441 transitions. [2022-11-21 17:10:41,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 4441 transitions. [2022-11-21 17:10:41,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:10:41,538 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 4441 transitions. [2022-11-21 17:10:41,549 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 153.13793103448276) internal successors, (4441), 29 states have internal predecessors, (4441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:41,563 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 248.0) internal successors, (7440), 30 states have internal predecessors, (7440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:41,567 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 248.0) internal successors, (7440), 30 states have internal predecessors, (7440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:41,567 INFO L175 Difference]: Start difference. First operand has 321 places, 697 transitions, 5826 flow. Second operand 29 states and 4441 transitions. [2022-11-21 17:10:41,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 1136 transitions, 11134 flow [2022-11-21 17:10:41,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 1136 transitions, 11108 flow, removed 11 selfloop flow, removed 2 redundant places. [2022-11-21 17:10:41,753 INFO L231 Difference]: Finished difference. Result has 355 places, 774 transitions, 7291 flow [2022-11-21 17:10:41,754 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=5800, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=697, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=147, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=504, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=7291, PETRI_PLACES=355, PETRI_TRANSITIONS=774} [2022-11-21 17:10:41,755 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, 104 predicate places. [2022-11-21 17:10:41,756 INFO L495 AbstractCegarLoop]: Abstraction has has 355 places, 774 transitions, 7291 flow [2022-11-21 17:10:41,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 142.76923076923077) internal successors, (1856), 13 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:41,757 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:10:41,757 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] [2022-11-21 17:10:41,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-21 17:10:41,757 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-21 17:10:41,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:10:41,758 INFO L85 PathProgramCache]: Analyzing trace with hash 2054598988, now seen corresponding path program 1 times [2022-11-21 17:10:41,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:10:41,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783857170] [2022-11-21 17:10:41,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:41,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:10:41,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:42,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:10:42,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:10:42,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783857170] [2022-11-21 17:10:42,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783857170] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:10:42,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:10:42,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 17:10:42,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348008109] [2022-11-21 17:10:42,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:10:42,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 17:10:42,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:10:42,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 17:10:42,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-21 17:10:43,001 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 248 [2022-11-21 17:10:43,003 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 355 places, 774 transitions, 7291 flow. Second operand has 13 states, 13 states have (on average 140.84615384615384) internal successors, (1831), 13 states have internal predecessors, (1831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:43,003 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:10:43,003 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 248 [2022-11-21 17:10:43,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:10:46,325 INFO L130 PetriNetUnfolder]: 2204/7071 cut-off events. [2022-11-21 17:10:46,326 INFO L131 PetriNetUnfolder]: For 23608/23738 co-relation queries the response was YES. [2022-11-21 17:10:46,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27231 conditions, 7071 events. 2204/7071 cut-off events. For 23608/23738 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 60087 event pairs, 363 based on Foata normal form. 47/6984 useless extension candidates. Maximal degree in co-relation 27092. Up to 3453 conditions per place. [2022-11-21 17:10:46,431 INFO L137 encePairwiseOnDemand]: 228/248 looper letters, 730 selfloop transitions, 160 changer transitions 2/1020 dead transitions. [2022-11-21 17:10:46,431 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 1020 transitions, 11334 flow [2022-11-21 17:10:46,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-21 17:10:46,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-11-21 17:10:46,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 3576 transitions. [2022-11-21 17:10:46,438 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6008064516129032 [2022-11-21 17:10:46,439 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 3576 transitions. [2022-11-21 17:10:46,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 3576 transitions. [2022-11-21 17:10:46,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:10:46,441 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 3576 transitions. [2022-11-21 17:10:46,447 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 149.0) internal successors, (3576), 24 states have internal predecessors, (3576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:46,458 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 248.0) internal successors, (6200), 25 states have internal predecessors, (6200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:46,460 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 248.0) internal successors, (6200), 25 states have internal predecessors, (6200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:46,461 INFO L175 Difference]: Start difference. First operand has 355 places, 774 transitions, 7291 flow. Second operand 24 states and 3576 transitions. [2022-11-21 17:10:46,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 1020 transitions, 11334 flow [2022-11-21 17:10:46,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 376 places, 1020 transitions, 11240 flow, removed 45 selfloop flow, removed 2 redundant places. [2022-11-21 17:10:46,712 INFO L231 Difference]: Finished difference. Result has 381 places, 805 transitions, 7958 flow [2022-11-21 17:10:46,714 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=7205, PETRI_DIFFERENCE_MINUEND_PLACES=353, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=774, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=133, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=635, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=7958, PETRI_PLACES=381, PETRI_TRANSITIONS=805} [2022-11-21 17:10:46,715 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, 130 predicate places. [2022-11-21 17:10:46,715 INFO L495 AbstractCegarLoop]: Abstraction has has 381 places, 805 transitions, 7958 flow [2022-11-21 17:10:46,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 140.84615384615384) internal successors, (1831), 13 states have internal predecessors, (1831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:46,716 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:10:46,716 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] [2022-11-21 17:10:46,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-21 17:10:46,717 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-21 17:10:46,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:10:46,717 INFO L85 PathProgramCache]: Analyzing trace with hash 560525299, now seen corresponding path program 3 times [2022-11-21 17:10:46,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:10:46,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016189173] [2022-11-21 17:10:46,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:46,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:10:46,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:47,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:10:47,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:10:47,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016189173] [2022-11-21 17:10:47,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016189173] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:10:47,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:10:47,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 17:10:47,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98278645] [2022-11-21 17:10:47,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:10:47,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 17:10:47,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:10:47,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 17:10:47,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-11-21 17:10:47,828 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 248 [2022-11-21 17:10:47,831 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 381 places, 805 transitions, 7958 flow. Second operand has 13 states, 13 states have (on average 142.76923076923077) internal successors, (1856), 13 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:47,831 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:10:47,832 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 248 [2022-11-21 17:10:47,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:10:52,568 INFO L130 PetriNetUnfolder]: 3030/10015 cut-off events. [2022-11-21 17:10:52,568 INFO L131 PetriNetUnfolder]: For 39458/39705 co-relation queries the response was YES. [2022-11-21 17:10:52,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39795 conditions, 10015 events. 3030/10015 cut-off events. For 39458/39705 co-relation queries the response was YES. Maximal size of possible extension queue 278. Compared 95866 event pairs, 591 based on Foata normal form. 95/9965 useless extension candidates. Maximal degree in co-relation 39718. Up to 3045 conditions per place. [2022-11-21 17:10:52,706 INFO L137 encePairwiseOnDemand]: 216/248 looper letters, 817 selfloop transitions, 313 changer transitions 3/1267 dead transitions. [2022-11-21 17:10:52,706 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 1267 transitions, 14828 flow [2022-11-21 17:10:52,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-21 17:10:52,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-21 17:10:52,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3229 transitions. [2022-11-21 17:10:52,712 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6200076804915514 [2022-11-21 17:10:52,712 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3229 transitions. [2022-11-21 17:10:52,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3229 transitions. [2022-11-21 17:10:52,714 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:10:52,714 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3229 transitions. [2022-11-21 17:10:52,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 153.76190476190476) internal successors, (3229), 21 states have internal predecessors, (3229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:52,727 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 248.0) internal successors, (5456), 22 states have internal predecessors, (5456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:52,729 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 248.0) internal successors, (5456), 22 states have internal predecessors, (5456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:52,730 INFO L175 Difference]: Start difference. First operand has 381 places, 805 transitions, 7958 flow. Second operand 21 states and 3229 transitions. [2022-11-21 17:10:52,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 401 places, 1267 transitions, 14828 flow [2022-11-21 17:10:53,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 389 places, 1267 transitions, 14670 flow, removed 14 selfloop flow, removed 12 redundant places. [2022-11-21 17:10:53,080 INFO L231 Difference]: Finished difference. Result has 403 places, 947 transitions, 11154 flow [2022-11-21 17:10:53,081 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=7870, PETRI_DIFFERENCE_MINUEND_PLACES=369, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=805, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=171, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=545, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=11154, PETRI_PLACES=403, PETRI_TRANSITIONS=947} [2022-11-21 17:10:53,083 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, 152 predicate places. [2022-11-21 17:10:53,083 INFO L495 AbstractCegarLoop]: Abstraction has has 403 places, 947 transitions, 11154 flow [2022-11-21 17:10:53,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 142.76923076923077) internal successors, (1856), 13 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:53,084 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:10:53,085 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] [2022-11-21 17:10:53,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-21 17:10:53,085 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-21 17:10:53,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:10:53,086 INFO L85 PathProgramCache]: Analyzing trace with hash -400447731, now seen corresponding path program 4 times [2022-11-21 17:10:53,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:10:53,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244538124] [2022-11-21 17:10:53,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:53,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:10:53,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:54,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:10:54,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:10:54,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244538124] [2022-11-21 17:10:54,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244538124] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:10:54,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:10:54,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 17:10:54,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087193566] [2022-11-21 17:10:54,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:10:54,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 17:10:54,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:10:54,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 17:10:54,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-11-21 17:10:54,325 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 248 [2022-11-21 17:10:54,327 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 947 transitions, 11154 flow. Second operand has 13 states, 13 states have (on average 142.76923076923077) internal successors, (1856), 13 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:10:54,327 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:10:54,327 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 248 [2022-11-21 17:10:54,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:11:01,317 INFO L130 PetriNetUnfolder]: 4378/14508 cut-off events. [2022-11-21 17:11:01,317 INFO L131 PetriNetUnfolder]: For 70001/70465 co-relation queries the response was YES. [2022-11-21 17:11:01,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60344 conditions, 14508 events. 4378/14508 cut-off events. For 70001/70465 co-relation queries the response was YES. Maximal size of possible extension queue 437. Compared 153497 event pairs, 656 based on Foata normal form. 187/14508 useless extension candidates. Maximal degree in co-relation 60253. Up to 2790 conditions per place. [2022-11-21 17:11:01,514 INFO L137 encePairwiseOnDemand]: 211/248 looper letters, 939 selfloop transitions, 545 changer transitions 6/1624 dead transitions. [2022-11-21 17:11:01,514 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 1624 transitions, 21318 flow [2022-11-21 17:11:01,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-21 17:11:01,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-21 17:11:01,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 4368 transitions. [2022-11-21 17:11:01,521 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6290322580645161 [2022-11-21 17:11:01,521 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 4368 transitions. [2022-11-21 17:11:01,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 4368 transitions. [2022-11-21 17:11:01,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:11:01,523 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 4368 transitions. [2022-11-21 17:11:01,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 156.0) internal successors, (4368), 28 states have internal predecessors, (4368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:11:01,540 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 248.0) internal successors, (7192), 29 states have internal predecessors, (7192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:11:01,543 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 248.0) internal successors, (7192), 29 states have internal predecessors, (7192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:11:01,543 INFO L175 Difference]: Start difference. First operand has 403 places, 947 transitions, 11154 flow. Second operand 28 states and 4368 transitions. [2022-11-21 17:11:01,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 1624 transitions, 21318 flow [2022-11-21 17:11:02,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 428 places, 1624 transitions, 21206 flow, removed 54 selfloop flow, removed 2 redundant places. [2022-11-21 17:11:02,197 INFO L231 Difference]: Finished difference. Result has 439 places, 1116 transitions, 16230 flow [2022-11-21 17:11:02,198 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=11078, PETRI_DIFFERENCE_MINUEND_PLACES=401, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=947, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=381, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=457, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=16230, PETRI_PLACES=439, PETRI_TRANSITIONS=1116} [2022-11-21 17:11:02,198 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, 188 predicate places. [2022-11-21 17:11:02,199 INFO L495 AbstractCegarLoop]: Abstraction has has 439 places, 1116 transitions, 16230 flow [2022-11-21 17:11:02,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 142.76923076923077) internal successors, (1856), 13 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:11:02,200 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:11:02,200 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] [2022-11-21 17:11:02,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-21 17:11:02,200 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-21 17:11:02,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:11:02,201 INFO L85 PathProgramCache]: Analyzing trace with hash -146302761, now seen corresponding path program 5 times [2022-11-21 17:11:02,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:11:02,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296277653] [2022-11-21 17:11:02,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:11:02,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:11:02,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:11:03,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:11:03,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:11:03,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296277653] [2022-11-21 17:11:03,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296277653] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:11:03,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:11:03,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 17:11:03,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72225819] [2022-11-21 17:11:03,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:11:03,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 17:11:03,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:11:03,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 17:11:03,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-11-21 17:11:03,359 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 248 [2022-11-21 17:11:03,361 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 1116 transitions, 16230 flow. Second operand has 13 states, 13 states have (on average 142.76923076923077) internal successors, (1856), 13 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:11:03,361 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:11:03,361 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 248 [2022-11-21 17:11:03,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:11:13,696 INFO L130 PetriNetUnfolder]: 5964/19988 cut-off events. [2022-11-21 17:11:13,697 INFO L131 PetriNetUnfolder]: For 122765/123409 co-relation queries the response was YES. [2022-11-21 17:11:13,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87127 conditions, 19988 events. 5964/19988 cut-off events. For 122765/123409 co-relation queries the response was YES. Maximal size of possible extension queue 642. Compared 227850 event pairs, 974 based on Foata normal form. 250/19990 useless extension candidates. Maximal degree in co-relation 87021. Up to 4448 conditions per place. [2022-11-21 17:11:14,048 INFO L137 encePairwiseOnDemand]: 211/248 looper letters, 939 selfloop transitions, 700 changer transitions 7/1780 dead transitions. [2022-11-21 17:11:14,048 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 468 places, 1780 transitions, 27300 flow [2022-11-21 17:11:14,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-21 17:11:14,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-21 17:11:14,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 4651 transitions. [2022-11-21 17:11:14,057 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6251344086021505 [2022-11-21 17:11:14,057 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 4651 transitions. [2022-11-21 17:11:14,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 4651 transitions. [2022-11-21 17:11:14,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:11:14,060 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 4651 transitions. [2022-11-21 17:11:14,069 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 155.03333333333333) internal successors, (4651), 30 states have internal predecessors, (4651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:11:14,080 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 248.0) internal successors, (7688), 31 states have internal predecessors, (7688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:11:14,083 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 248.0) internal successors, (7688), 31 states have internal predecessors, (7688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:11:14,083 INFO L175 Difference]: Start difference. First operand has 439 places, 1116 transitions, 16230 flow. Second operand 30 states and 4651 transitions. [2022-11-21 17:11:14,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 468 places, 1780 transitions, 27300 flow [2022-11-21 17:11:15,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 1780 transitions, 27063 flow, removed 54 selfloop flow, removed 15 redundant places. [2022-11-21 17:11:15,580 INFO L231 Difference]: Finished difference. Result has 470 places, 1310 transitions, 22846 flow [2022-11-21 17:11:15,581 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=16033, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=506, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=500, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=22846, PETRI_PLACES=470, PETRI_TRANSITIONS=1310} [2022-11-21 17:11:15,581 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, 219 predicate places. [2022-11-21 17:11:15,582 INFO L495 AbstractCegarLoop]: Abstraction has has 470 places, 1310 transitions, 22846 flow [2022-11-21 17:11:15,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 142.76923076923077) internal successors, (1856), 13 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:11:15,583 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:11:15,583 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] [2022-11-21 17:11:15,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-21 17:11:15,583 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-21 17:11:15,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:11:15,584 INFO L85 PathProgramCache]: Analyzing trace with hash -680722107, now seen corresponding path program 6 times [2022-11-21 17:11:15,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:11:15,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248954184] [2022-11-21 17:11:15,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:11:15,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:11:15,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:11:16,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:11:16,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:11:16,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248954184] [2022-11-21 17:11:16,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248954184] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:11:16,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:11:16,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 17:11:16,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769203354] [2022-11-21 17:11:16,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:11:16,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 17:11:16,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:11:16,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 17:11:16,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-21 17:11:16,684 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 248 [2022-11-21 17:11:16,687 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 470 places, 1310 transitions, 22846 flow. Second operand has 13 states, 13 states have (on average 142.76923076923077) internal successors, (1856), 13 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:11:16,687 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:11:16,688 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 248 [2022-11-21 17:11:16,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:11:29,306 INFO L130 PetriNetUnfolder]: 6566/21941 cut-off events. [2022-11-21 17:11:29,306 INFO L131 PetriNetUnfolder]: For 177131/177803 co-relation queries the response was YES. [2022-11-21 17:11:29,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102076 conditions, 21941 events. 6566/21941 cut-off events. For 177131/177803 co-relation queries the response was YES. Maximal size of possible extension queue 714. Compared 255284 event pairs, 1095 based on Foata normal form. 236/21901 useless extension candidates. Maximal degree in co-relation 101953. Up to 5488 conditions per place. [2022-11-21 17:11:29,754 INFO L137 encePairwiseOnDemand]: 211/248 looper letters, 1076 selfloop transitions, 724 changer transitions 5/1939 dead transitions. [2022-11-21 17:11:29,754 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 496 places, 1939 transitions, 33856 flow [2022-11-21 17:11:29,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-21 17:11:29,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2022-11-21 17:11:29,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 4208 transitions. [2022-11-21 17:11:29,762 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6284348864994026 [2022-11-21 17:11:29,762 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 4208 transitions. [2022-11-21 17:11:29,763 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 4208 transitions. [2022-11-21 17:11:29,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:11:29,765 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 4208 transitions. [2022-11-21 17:11:29,772 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 155.85185185185185) internal successors, (4208), 27 states have internal predecessors, (4208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:11:29,781 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 248.0) internal successors, (6944), 28 states have internal predecessors, (6944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:11:29,784 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 248.0) internal successors, (6944), 28 states have internal predecessors, (6944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:11:29,784 INFO L175 Difference]: Start difference. First operand has 470 places, 1310 transitions, 22846 flow. Second operand 27 states and 4208 transitions. [2022-11-21 17:11:29,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 496 places, 1939 transitions, 33856 flow [2022-11-21 17:11:32,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 486 places, 1939 transitions, 33745 flow, removed 32 selfloop flow, removed 10 redundant places. [2022-11-21 17:11:32,092 INFO L231 Difference]: Finished difference. Result has 496 places, 1433 transitions, 28422 flow [2022-11-21 17:11:32,093 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=22761, PETRI_DIFFERENCE_MINUEND_PLACES=460, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1310, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=601, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=604, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=28422, PETRI_PLACES=496, PETRI_TRANSITIONS=1433} [2022-11-21 17:11:32,094 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, 245 predicate places. [2022-11-21 17:11:32,094 INFO L495 AbstractCegarLoop]: Abstraction has has 496 places, 1433 transitions, 28422 flow [2022-11-21 17:11:32,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 142.76923076923077) internal successors, (1856), 13 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:11:32,095 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:11:32,095 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] [2022-11-21 17:11:32,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-21 17:11:32,095 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-21 17:11:32,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:11:32,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1264847025, now seen corresponding path program 7 times [2022-11-21 17:11:32,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:11:32,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315637221] [2022-11-21 17:11:32,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:11:32,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:11:32,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:11:33,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:11:33,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:11:33,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315637221] [2022-11-21 17:11:33,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315637221] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:11:33,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:11:33,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 17:11:33,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153671001] [2022-11-21 17:11:33,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:11:33,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 17:11:33,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:11:33,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 17:11:33,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-21 17:11:33,540 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 248 [2022-11-21 17:11:33,541 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 496 places, 1433 transitions, 28422 flow. Second operand has 13 states, 13 states have (on average 142.76923076923077) internal successors, (1856), 13 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:11:33,542 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:11:33,542 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 248 [2022-11-21 17:11:33,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:11:50,143 INFO L130 PetriNetUnfolder]: 7468/25092 cut-off events. [2022-11-21 17:11:50,143 INFO L131 PetriNetUnfolder]: For 249680/250555 co-relation queries the response was YES. [2022-11-21 17:11:50,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121709 conditions, 25092 events. 7468/25092 cut-off events. For 249680/250555 co-relation queries the response was YES. Maximal size of possible extension queue 824. Compared 301252 event pairs, 1249 based on Foata normal form. 328/25110 useless extension candidates. Maximal degree in co-relation 121576. Up to 5138 conditions per place. [2022-11-21 17:11:50,697 INFO L137 encePairwiseOnDemand]: 211/248 looper letters, 1080 selfloop transitions, 846 changer transitions 7/2067 dead transitions. [2022-11-21 17:11:50,697 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 527 places, 2067 transitions, 40276 flow [2022-11-21 17:11:50,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-21 17:11:50,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2022-11-21 17:11:50,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 4950 transitions. [2022-11-21 17:11:50,705 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6237399193548387 [2022-11-21 17:11:50,705 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 4950 transitions. [2022-11-21 17:11:50,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 4950 transitions. [2022-11-21 17:11:50,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:11:50,708 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 4950 transitions. [2022-11-21 17:11:50,716 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 154.6875) internal successors, (4950), 32 states have internal predecessors, (4950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:11:50,726 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 248.0) internal successors, (8184), 33 states have internal predecessors, (8184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:11:50,729 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 248.0) internal successors, (8184), 33 states have internal predecessors, (8184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:11:50,729 INFO L175 Difference]: Start difference. First operand has 496 places, 1433 transitions, 28422 flow. Second operand 32 states and 4950 transitions. [2022-11-21 17:11:50,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 527 places, 2067 transitions, 40276 flow [2022-11-21 17:11:54,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 512 places, 2067 transitions, 40085 flow, removed 31 selfloop flow, removed 15 redundant places. [2022-11-21 17:11:54,619 INFO L231 Difference]: Finished difference. Result has 527 places, 1569 transitions, 35332 flow [2022-11-21 17:11:54,619 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=28240, PETRI_DIFFERENCE_MINUEND_PLACES=481, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1433, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=711, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=628, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=35332, PETRI_PLACES=527, PETRI_TRANSITIONS=1569} [2022-11-21 17:11:54,620 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, 276 predicate places. [2022-11-21 17:11:54,620 INFO L495 AbstractCegarLoop]: Abstraction has has 527 places, 1569 transitions, 35332 flow [2022-11-21 17:11:54,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 142.76923076923077) internal successors, (1856), 13 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:11:54,620 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:11:54,621 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] [2022-11-21 17:11:54,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-21 17:11:54,621 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-21 17:11:54,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:11:54,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1286563, now seen corresponding path program 8 times [2022-11-21 17:11:54,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:11:54,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544967741] [2022-11-21 17:11:54,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:11:54,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:11:54,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:11:55,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:11:55,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:11:55,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544967741] [2022-11-21 17:11:55,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544967741] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:11:55,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:11:55,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 17:11:55,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323168175] [2022-11-21 17:11:55,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:11:55,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 17:11:55,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:11:55,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 17:11:55,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-21 17:11:55,581 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 248 [2022-11-21 17:11:55,582 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 527 places, 1569 transitions, 35332 flow. Second operand has 13 states, 13 states have (on average 142.76923076923077) internal successors, (1856), 13 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:11:55,582 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:11:55,583 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 248 [2022-11-21 17:11:55,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand