./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_05-ptra_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8299db0a-f171-42d3-8add-6c01a5e3209c/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8299db0a-f171-42d3-8add-6c01a5e3209c/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8299db0a-f171-42d3-8add-6c01a5e3209c/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8299db0a-f171-42d3-8add-6c01a5e3209c/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_05-ptra_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8299db0a-f171-42d3-8add-6c01a5e3209c/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8299db0a-f171-42d3-8add-6c01a5e3209c/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5d221fe111612a5fd289edcbc5a129acf7ca50098e249efcc8da191d610ed6fb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 11:18:42,715 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:18:42,718 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:18:42,770 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:18:42,772 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:18:42,777 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:18:42,780 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:18:42,785 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:18:42,788 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:18:42,795 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:18:42,796 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:18:42,798 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:18:42,800 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:18:42,803 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:18:42,805 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:18:42,811 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:18:42,813 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:18:42,815 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:18:42,817 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:18:42,823 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:18:42,826 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:18:42,828 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:18:42,830 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:18:42,832 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:18:42,845 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:18:42,847 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:18:42,848 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:18:42,849 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:18:42,851 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:18:42,853 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:18:42,853 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:18:42,855 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:18:42,857 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:18:42,858 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:18:42,861 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:18:42,861 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:18:42,862 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:18:42,863 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:18:42,863 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:18:42,866 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:18:42,867 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:18:42,868 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8299db0a-f171-42d3-8add-6c01a5e3209c/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 11:18:42,922 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:18:42,922 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:18:42,923 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:18:42,924 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:18:42,925 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:18:42,925 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:18:42,926 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:18:42,927 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:18:42,927 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:18:42,928 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:18:42,929 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:18:42,930 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:18:42,930 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:18:42,931 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:18:42,931 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:18:42,931 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:18:42,932 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:18:42,932 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:18:42,933 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 11:18:42,933 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:18:42,933 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:18:42,934 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:18:42,934 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:18:42,935 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:18:42,935 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:18:42,935 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:18:42,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:18:42,936 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:18:42,937 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:18:42,938 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:18:42,938 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:18:42,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:18:42,939 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:18:42,939 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:18:42,940 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:18:42,940 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_8299db0a-f171-42d3-8add-6c01a5e3209c/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8299db0a-f171-42d3-8add-6c01a5e3209c/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d221fe111612a5fd289edcbc5a129acf7ca50098e249efcc8da191d610ed6fb [2022-11-20 11:18:43,368 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:18:43,421 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:18:43,424 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:18:43,426 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:18:43,426 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:18:43,428 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8299db0a-f171-42d3-8add-6c01a5e3209c/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/goblint-regression/09-regions_05-ptra_rc.i [2022-11-20 11:18:47,157 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:18:47,584 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:18:47,584 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8299db0a-f171-42d3-8add-6c01a5e3209c/sv-benchmarks/c/goblint-regression/09-regions_05-ptra_rc.i [2022-11-20 11:18:47,605 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8299db0a-f171-42d3-8add-6c01a5e3209c/bin/uautomizer-ug76WZFUDN/data/994a8120b/feaf85d8034045f3970f26bdc23da95c/FLAG06f490193 [2022-11-20 11:18:47,624 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8299db0a-f171-42d3-8add-6c01a5e3209c/bin/uautomizer-ug76WZFUDN/data/994a8120b/feaf85d8034045f3970f26bdc23da95c [2022-11-20 11:18:47,627 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:18:47,629 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:18:47,631 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:18:47,631 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:18:47,636 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:18:47,637 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:18:47" (1/1) ... [2022-11-20 11:18:47,638 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32d0c092 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:47, skipping insertion in model container [2022-11-20 11:18:47,639 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:18:47" (1/1) ... [2022-11-20 11:18:47,650 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:18:47,748 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:18:48,758 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:18:48,774 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:18:48,833 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:18:48,924 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:18:48,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:48 WrapperNode [2022-11-20 11:18:48,925 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:18:48,926 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:18:48,926 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:18:48,927 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:18:48,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:48" (1/1) ... [2022-11-20 11:18:48,958 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:48" (1/1) ... [2022-11-20 11:18:48,996 INFO L138 Inliner]: procedures = 369, calls = 37, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 207 [2022-11-20 11:18:48,997 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:18:48,998 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:18:48,998 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:18:48,998 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:18:49,009 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:48" (1/1) ... [2022-11-20 11:18:49,010 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:48" (1/1) ... [2022-11-20 11:18:49,017 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:48" (1/1) ... [2022-11-20 11:18:49,020 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:48" (1/1) ... [2022-11-20 11:18:49,049 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:48" (1/1) ... [2022-11-20 11:18:49,057 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:48" (1/1) ... [2022-11-20 11:18:49,059 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:48" (1/1) ... [2022-11-20 11:18:49,062 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:48" (1/1) ... [2022-11-20 11:18:49,076 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:18:49,077 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:18:49,078 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:18:49,078 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:18:49,079 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:48" (1/1) ... [2022-11-20 11:18:49,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:18:49,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8299db0a-f171-42d3-8add-6c01a5e3209c/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:18:49,132 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8299db0a-f171-42d3-8add-6c01a5e3209c/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:18:49,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8299db0a-f171-42d3-8add-6c01a5e3209c/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:18:49,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:18:49,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 11:18:49,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:18:49,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 11:18:49,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:18:49,189 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 11:18:49,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 11:18:49,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:18:49,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 11:18:49,189 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-20 11:18:49,190 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-20 11:18:49,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:18:49,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:18:49,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:18:49,192 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 11:18:49,405 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:18:49,408 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:18:50,286 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:18:50,300 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:18:50,305 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 11:18:50,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:18:50 BoogieIcfgContainer [2022-11-20 11:18:50,309 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:18:50,312 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:18:50,313 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:18:50,317 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:18:50,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:18:47" (1/3) ... [2022-11-20 11:18:50,320 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e6994dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:18:50, skipping insertion in model container [2022-11-20 11:18:50,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:48" (2/3) ... [2022-11-20 11:18:50,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e6994dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:18:50, skipping insertion in model container [2022-11-20 11:18:50,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:18:50" (3/3) ... [2022-11-20 11:18:50,325 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_05-ptra_rc.i [2022-11-20 11:18:50,336 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 11:18:50,349 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:18:50,349 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-11-20 11:18:50,349 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 11:18:50,506 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 11:18:50,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 249 places, 245 transitions, 495 flow [2022-11-20 11:18:50,751 INFO L130 PetriNetUnfolder]: 0/244 cut-off events. [2022-11-20 11:18:50,752 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:18:50,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 248 conditions, 244 events. 0/244 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 92 event pairs, 0 based on Foata normal form. 0/222 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-20 11:18:50,756 INFO L82 GeneralOperation]: Start removeDead. Operand has 249 places, 245 transitions, 495 flow [2022-11-20 11:18:50,769 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 248 places, 244 transitions, 491 flow [2022-11-20 11:18:50,786 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:18:50,795 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;@2d030438, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:18:50,795 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2022-11-20 11:18:50,807 INFO L130 PetriNetUnfolder]: 0/41 cut-off events. [2022-11-20 11:18:50,808 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:18:50,808 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:18:50,809 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] [2022-11-20 11:18:50,810 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)] === [2022-11-20 11:18:50,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:18:50,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1693056685, now seen corresponding path program 1 times [2022-11-20 11:18:50,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:18:50,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856542119] [2022-11-20 11:18:50,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:18:50,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:18:51,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:52,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:18:52,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:18:52,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856542119] [2022-11-20 11:18:52,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856542119] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:18:52,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:18:52,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:18:52,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406845986] [2022-11-20 11:18:52,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:18:52,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:18:52,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:18:52,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:18:52,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:18:52,191 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 245 [2022-11-20 11:18:52,200 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 244 transitions, 491 flow. Second operand has 6 states, 6 states have (on average 143.5) internal successors, (861), 6 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:52,200 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:18:52,201 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 245 [2022-11-20 11:18:52,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:18:53,217 INFO L130 PetriNetUnfolder]: 360/1309 cut-off events. [2022-11-20 11:18:53,217 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 11:18:53,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2134 conditions, 1309 events. 360/1309 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 6695 event pairs, 360 based on Foata normal form. 0/1133 useless extension candidates. Maximal degree in co-relation 1934. Up to 806 conditions per place. [2022-11-20 11:18:53,240 INFO L137 encePairwiseOnDemand]: 227/245 looper letters, 85 selfloop transitions, 15 changer transitions 0/241 dead transitions. [2022-11-20 11:18:53,240 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 241 transitions, 685 flow [2022-11-20 11:18:53,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:18:53,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:18:53,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 955 transitions. [2022-11-20 11:18:53,272 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6496598639455783 [2022-11-20 11:18:53,274 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 955 transitions. [2022-11-20 11:18:53,275 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 955 transitions. [2022-11-20 11:18:53,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:18:53,284 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 955 transitions. [2022-11-20 11:18:53,292 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 159.16666666666666) internal successors, (955), 6 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:53,302 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 245.0) internal successors, (1715), 7 states have internal predecessors, (1715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:53,304 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 245.0) internal successors, (1715), 7 states have internal predecessors, (1715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:53,306 INFO L175 Difference]: Start difference. First operand has 248 places, 244 transitions, 491 flow. Second operand 6 states and 955 transitions. [2022-11-20 11:18:53,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 241 transitions, 685 flow [2022-11-20 11:18:53,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 241 transitions, 684 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:18:53,320 INFO L231 Difference]: Finished difference. Result has 249 places, 241 transitions, 514 flow [2022-11-20 11:18:53,323 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, 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} [2022-11-20 11:18:53,327 INFO L288 CegarLoopForPetriNet]: 248 programPoint places, 1 predicate places. [2022-11-20 11:18:53,327 INFO L495 AbstractCegarLoop]: Abstraction has has 249 places, 241 transitions, 514 flow [2022-11-20 11:18:53,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 143.5) internal successors, (861), 6 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:53,328 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:18:53,329 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] [2022-11-20 11:18:53,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:18:53,329 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)] === [2022-11-20 11:18:53,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:18:53,330 INFO L85 PathProgramCache]: Analyzing trace with hash -508000039, now seen corresponding path program 1 times [2022-11-20 11:18:53,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:18:53,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391846741] [2022-11-20 11:18:53,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:18:53,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:18:53,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:53,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:18:53,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:18:53,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391846741] [2022-11-20 11:18:53,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391846741] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:18:53,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:18:53,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:18:53,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961633701] [2022-11-20 11:18:53,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:18:53,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:18:53,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:18:53,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:18:53,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:18:53,994 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 245 [2022-11-20 11:18:53,997 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 241 transitions, 514 flow. Second operand has 6 states, 6 states have (on average 144.5) internal successors, (867), 6 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:53,997 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:18:53,999 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 245 [2022-11-20 11:18:54,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:18:54,667 INFO L130 PetriNetUnfolder]: 360/1306 cut-off events. [2022-11-20 11:18:54,667 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 11:18:54,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2143 conditions, 1306 events. 360/1306 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 6671 event pairs, 360 based on Foata normal form. 0/1133 useless extension candidates. Maximal degree in co-relation 1958. Up to 803 conditions per place. [2022-11-20 11:18:54,677 INFO L137 encePairwiseOnDemand]: 227/245 looper letters, 82 selfloop transitions, 15 changer transitions 0/238 dead transitions. [2022-11-20 11:18:54,678 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 238 transitions, 702 flow [2022-11-20 11:18:54,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:18:54,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:18:54,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 952 transitions. [2022-11-20 11:18:54,682 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6476190476190476 [2022-11-20 11:18:54,683 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 952 transitions. [2022-11-20 11:18:54,683 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 952 transitions. [2022-11-20 11:18:54,684 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:18:54,684 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 952 transitions. [2022-11-20 11:18:54,687 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 158.66666666666666) internal successors, (952), 6 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:54,691 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 245.0) internal successors, (1715), 7 states have internal predecessors, (1715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:54,693 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 245.0) internal successors, (1715), 7 states have internal predecessors, (1715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:54,694 INFO L175 Difference]: Start difference. First operand has 249 places, 241 transitions, 514 flow. Second operand 6 states and 952 transitions. [2022-11-20 11:18:54,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 238 transitions, 702 flow [2022-11-20 11:18:54,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 238 transitions, 672 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 11:18:54,709 INFO L231 Difference]: Finished difference. Result has 246 places, 238 transitions, 508 flow [2022-11-20 11:18:54,710 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=478, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=508, PETRI_PLACES=246, PETRI_TRANSITIONS=238} [2022-11-20 11:18:54,711 INFO L288 CegarLoopForPetriNet]: 248 programPoint places, -2 predicate places. [2022-11-20 11:18:54,712 INFO L495 AbstractCegarLoop]: Abstraction has has 246 places, 238 transitions, 508 flow [2022-11-20 11:18:54,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 144.5) internal successors, (867), 6 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:54,713 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:18:54,713 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] [2022-11-20 11:18:54,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:18:54,714 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)] === [2022-11-20 11:18:54,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:18:54,716 INFO L85 PathProgramCache]: Analyzing trace with hash -844517101, now seen corresponding path program 1 times [2022-11-20 11:18:54,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:18:54,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907542570] [2022-11-20 11:18:54,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:18:54,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:18:54,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:54,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:18:54,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:18:54,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907542570] [2022-11-20 11:18:54,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907542570] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:18:54,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:18:54,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:18:54,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005671906] [2022-11-20 11:18:54,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:18:54,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:18:54,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:18:54,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:18:54,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:18:54,840 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 245 [2022-11-20 11:18:54,841 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 238 transitions, 508 flow. Second operand has 3 states, 3 states have (on average 224.33333333333334) internal successors, (673), 3 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:54,841 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:18:54,842 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 245 [2022-11-20 11:18:54,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:18:54,958 INFO L130 PetriNetUnfolder]: 18/388 cut-off events. [2022-11-20 11:18:54,958 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:18:54,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 465 conditions, 388 events. 18/388 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 807 event pairs, 18 based on Foata normal form. 0/347 useless extension candidates. Maximal degree in co-relation 308. Up to 56 conditions per place. [2022-11-20 11:18:54,962 INFO L137 encePairwiseOnDemand]: 242/245 looper letters, 19 selfloop transitions, 2 changer transitions 0/237 dead transitions. [2022-11-20 11:18:54,962 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 237 transitions, 548 flow [2022-11-20 11:18:54,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:18:54,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:18:54,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 691 transitions. [2022-11-20 11:18:54,964 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9401360544217687 [2022-11-20 11:18:54,965 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 691 transitions. [2022-11-20 11:18:54,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 691 transitions. [2022-11-20 11:18:54,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:18:54,965 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 691 transitions. [2022-11-20 11:18:54,967 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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) [2022-11-20 11:18:54,970 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 245.0) internal successors, (980), 4 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:54,971 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 245.0) internal successors, (980), 4 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:54,971 INFO L175 Difference]: Start difference. First operand has 246 places, 238 transitions, 508 flow. Second operand 3 states and 691 transitions. [2022-11-20 11:18:54,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 237 transitions, 548 flow [2022-11-20 11:18:54,974 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 237 transitions, 518 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 11:18:54,978 INFO L231 Difference]: Finished difference. Result has 242 places, 237 transitions, 480 flow [2022-11-20 11:18:54,979 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=476, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=480, PETRI_PLACES=242, PETRI_TRANSITIONS=237} [2022-11-20 11:18:54,983 INFO L288 CegarLoopForPetriNet]: 248 programPoint places, -6 predicate places. [2022-11-20 11:18:54,983 INFO L495 AbstractCegarLoop]: Abstraction has has 242 places, 237 transitions, 480 flow [2022-11-20 11:18:54,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 224.33333333333334) internal successors, (673), 3 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:54,984 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:18:54,984 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] [2022-11-20 11:18:54,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:18:54,985 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)] === [2022-11-20 11:18:54,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:18:54,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1861345983, now seen corresponding path program 1 times [2022-11-20 11:18:54,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:18:54,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955518683] [2022-11-20 11:18:54,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:18:54,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:18:55,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:55,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:18:55,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:18:55,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955518683] [2022-11-20 11:18:55,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955518683] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:18:55,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:18:55,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:18:55,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367620405] [2022-11-20 11:18:55,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:18:55,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:18:55,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:18:55,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:18:55,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:18:55,075 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 245 [2022-11-20 11:18:55,076 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 237 transitions, 480 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) [2022-11-20 11:18:55,076 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:18:55,076 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 245 [2022-11-20 11:18:55,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:18:55,157 INFO L130 PetriNetUnfolder]: 8/333 cut-off events. [2022-11-20 11:18:55,158 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 11:18:55,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 369 conditions, 333 events. 8/333 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 497 event pairs, 8 based on Foata normal form. 0/313 useless extension candidates. Maximal degree in co-relation 303. Up to 27 conditions per place. [2022-11-20 11:18:55,160 INFO L137 encePairwiseOnDemand]: 239/245 looper letters, 12 selfloop transitions, 1 changer transitions 0/232 dead transitions. [2022-11-20 11:18:55,160 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 232 transitions, 496 flow [2022-11-20 11:18:55,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:18:55,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:18:55,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 696 transitions. [2022-11-20 11:18:55,163 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9469387755102041 [2022-11-20 11:18:55,164 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 696 transitions. [2022-11-20 11:18:55,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 696 transitions. [2022-11-20 11:18:55,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:18:55,166 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 696 transitions. [2022-11-20 11:18:55,173 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 232.0) internal successors, (696), 3 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:55,175 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 245.0) internal successors, (980), 4 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:55,176 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 245.0) internal successors, (980), 4 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:55,176 INFO L175 Difference]: Start difference. First operand has 242 places, 237 transitions, 480 flow. Second operand 3 states and 696 transitions. [2022-11-20 11:18:55,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 232 transitions, 496 flow [2022-11-20 11:18:55,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 232 transitions, 492 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:18:55,183 INFO L231 Difference]: Finished difference. Result has 237 places, 232 transitions, 468 flow [2022-11-20 11:18:55,183 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=466, PETRI_DIFFERENCE_MINUEND_PLACES=235, 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=468, PETRI_PLACES=237, PETRI_TRANSITIONS=232} [2022-11-20 11:18:55,185 INFO L288 CegarLoopForPetriNet]: 248 programPoint places, -11 predicate places. [2022-11-20 11:18:55,187 INFO L495 AbstractCegarLoop]: Abstraction has has 237 places, 232 transitions, 468 flow [2022-11-20 11:18:55,188 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) [2022-11-20 11:18:55,188 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:18:55,189 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:18:55,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:18:55,190 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)] === [2022-11-20 11:18:55,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:18:55,190 INFO L85 PathProgramCache]: Analyzing trace with hash -611283254, now seen corresponding path program 1 times [2022-11-20 11:18:55,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:18:55,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148314145] [2022-11-20 11:18:55,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:18:55,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:18:55,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:55,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:18:55,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:18:55,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148314145] [2022-11-20 11:18:55,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148314145] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:18:55,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:18:55,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:18:55,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074146581] [2022-11-20 11:18:55,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:18:55,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:18:55,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:18:55,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:18:55,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:18:55,943 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 245 [2022-11-20 11:18:55,945 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 232 transitions, 468 flow. Second operand has 6 states, 6 states have (on average 155.16666666666666) internal successors, (931), 6 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:55,946 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:18:55,946 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 245 [2022-11-20 11:18:55,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:18:56,608 INFO L130 PetriNetUnfolder]: 416/1384 cut-off events. [2022-11-20 11:18:56,608 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:18:56,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2310 conditions, 1384 events. 416/1384 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 7011 event pairs, 416 based on Foata normal form. 0/1232 useless extension candidates. Maximal degree in co-relation 2233. Up to 916 conditions per place. [2022-11-20 11:18:56,617 INFO L137 encePairwiseOnDemand]: 239/245 looper letters, 83 selfloop transitions, 5 changer transitions 0/231 dead transitions. [2022-11-20 11:18:56,618 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 231 transitions, 642 flow [2022-11-20 11:18:56,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:18:56,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:18:56,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 989 transitions. [2022-11-20 11:18:56,622 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6727891156462585 [2022-11-20 11:18:56,622 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 989 transitions. [2022-11-20 11:18:56,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 989 transitions. [2022-11-20 11:18:56,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:18:56,624 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 989 transitions. [2022-11-20 11:18:56,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 164.83333333333334) internal successors, (989), 6 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:56,630 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 245.0) internal successors, (1715), 7 states have internal predecessors, (1715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:56,632 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 245.0) internal successors, (1715), 7 states have internal predecessors, (1715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:56,632 INFO L175 Difference]: Start difference. First operand has 237 places, 232 transitions, 468 flow. Second operand 6 states and 989 transitions. [2022-11-20 11:18:56,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 231 transitions, 642 flow [2022-11-20 11:18:56,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 231 transitions, 641 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:18:56,640 INFO L231 Difference]: Finished difference. Result has 240 places, 231 transitions, 475 flow [2022-11-20 11:18:56,641 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=465, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=475, PETRI_PLACES=240, PETRI_TRANSITIONS=231} [2022-11-20 11:18:56,644 INFO L288 CegarLoopForPetriNet]: 248 programPoint places, -8 predicate places. [2022-11-20 11:18:56,645 INFO L495 AbstractCegarLoop]: Abstraction has has 240 places, 231 transitions, 475 flow [2022-11-20 11:18:56,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 155.16666666666666) internal successors, (931), 6 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:56,646 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:18:56,646 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:18:56,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 11:18:56,647 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)] === [2022-11-20 11:18:56,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:18:56,648 INFO L85 PathProgramCache]: Analyzing trace with hash -846604848, now seen corresponding path program 1 times [2022-11-20 11:18:56,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:18:56,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410747321] [2022-11-20 11:18:56,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:18:56,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:18:56,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:56,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:18:56,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:18:56,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410747321] [2022-11-20 11:18:56,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410747321] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:18:56,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:18:56,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:18:56,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873945682] [2022-11-20 11:18:56,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:18:56,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:18:56,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:18:56,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:18:56,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:18:56,768 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 245 [2022-11-20 11:18:56,769 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 231 transitions, 475 flow. Second operand has 3 states, 3 states have (on average 236.33333333333334) internal successors, (709), 3 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:56,769 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:18:56,769 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 245 [2022-11-20 11:18:56,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:18:56,819 INFO L130 PetriNetUnfolder]: 0/230 cut-off events. [2022-11-20 11:18:56,819 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:18:56,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 230 events. 0/230 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. 0/222 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2022-11-20 11:18:56,821 INFO L137 encePairwiseOnDemand]: 242/245 looper letters, 7 selfloop transitions, 2 changer transitions 0/230 dead transitions. [2022-11-20 11:18:56,821 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 230 transitions, 491 flow [2022-11-20 11:18:56,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:18:56,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:18:56,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 715 transitions. [2022-11-20 11:18:56,824 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9727891156462585 [2022-11-20 11:18:56,825 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 715 transitions. [2022-11-20 11:18:56,825 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 715 transitions. [2022-11-20 11:18:56,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:18:56,826 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 715 transitions. [2022-11-20 11:18:56,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 238.33333333333334) internal successors, (715), 3 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:56,830 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 245.0) internal successors, (980), 4 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:56,831 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 245.0) internal successors, (980), 4 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:56,831 INFO L175 Difference]: Start difference. First operand has 240 places, 231 transitions, 475 flow. Second operand 3 states and 715 transitions. [2022-11-20 11:18:56,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 230 transitions, 491 flow [2022-11-20 11:18:56,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 230 transitions, 481 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 11:18:56,862 INFO L231 Difference]: Finished difference. Result has 236 places, 230 transitions, 467 flow [2022-11-20 11:18:56,863 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=463, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=228, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=467, PETRI_PLACES=236, PETRI_TRANSITIONS=230} [2022-11-20 11:18:56,867 INFO L288 CegarLoopForPetriNet]: 248 programPoint places, -12 predicate places. [2022-11-20 11:18:56,867 INFO L495 AbstractCegarLoop]: Abstraction has has 236 places, 230 transitions, 467 flow [2022-11-20 11:18:56,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 236.33333333333334) internal successors, (709), 3 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:56,868 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:18:56,868 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:18:56,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 11:18:56,869 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)] === [2022-11-20 11:18:56,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:18:56,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1500311913, now seen corresponding path program 1 times [2022-11-20 11:18:56,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:18:56,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8907412] [2022-11-20 11:18:56,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:18:56,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:18:56,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:56,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:18:56,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:18:56,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8907412] [2022-11-20 11:18:56,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8907412] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:18:56,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:18:56,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:18:56,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234771147] [2022-11-20 11:18:56,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:18:56,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:18:56,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:18:56,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:18:56,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:18:56,984 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 245 [2022-11-20 11:18:56,985 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 230 transitions, 467 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) [2022-11-20 11:18:56,986 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:18:56,986 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 245 [2022-11-20 11:18:56,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:18:57,032 INFO L130 PetriNetUnfolder]: 0/229 cut-off events. [2022-11-20 11:18:57,032 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 11:18:57,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 242 conditions, 229 events. 0/229 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 80 event pairs, 0 based on Foata normal form. 0/222 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2022-11-20 11:18:57,034 INFO L137 encePairwiseOnDemand]: 243/245 looper letters, 4 selfloop transitions, 1 changer transitions 0/229 dead transitions. [2022-11-20 11:18:57,034 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 229 transitions, 475 flow [2022-11-20 11:18:57,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:18:57,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:18:57,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 720 transitions. [2022-11-20 11:18:57,037 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9795918367346939 [2022-11-20 11:18:57,038 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 720 transitions. [2022-11-20 11:18:57,038 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 720 transitions. [2022-11-20 11:18:57,039 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:18:57,039 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 720 transitions. [2022-11-20 11:18:57,041 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 240.0) internal successors, (720), 3 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:57,045 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 245.0) internal successors, (980), 4 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:57,046 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 245.0) internal successors, (980), 4 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:57,047 INFO L175 Difference]: Start difference. First operand has 236 places, 230 transitions, 467 flow. Second operand 3 states and 720 transitions. [2022-11-20 11:18:57,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 229 transitions, 475 flow [2022-11-20 11:18:57,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 229 transitions, 471 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:18:57,053 INFO L231 Difference]: Finished difference. Result has 235 places, 229 transitions, 463 flow [2022-11-20 11:18:57,053 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=461, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=228, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=463, PETRI_PLACES=235, PETRI_TRANSITIONS=229} [2022-11-20 11:18:57,054 INFO L288 CegarLoopForPetriNet]: 248 programPoint places, -13 predicate places. [2022-11-20 11:18:57,055 INFO L495 AbstractCegarLoop]: Abstraction has has 235 places, 229 transitions, 463 flow [2022-11-20 11:18:57,055 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) [2022-11-20 11:18:57,055 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:18:57,056 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] [2022-11-20 11:18:57,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 11:18:57,056 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)] === [2022-11-20 11:18:57,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:18:57,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1315759893, now seen corresponding path program 1 times [2022-11-20 11:18:57,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:18:57,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145359981] [2022-11-20 11:18:57,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:18:57,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:18:57,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:58,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:18:58,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:18:58,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145359981] [2022-11-20 11:18:58,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145359981] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:18:58,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:18:58,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:18:58,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585890449] [2022-11-20 11:18:58,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:18:58,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:18:58,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:18:58,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:18:58,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:18:58,086 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 245 [2022-11-20 11:18:58,088 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 229 transitions, 463 flow. Second operand has 6 states, 6 states have (on average 160.66666666666666) internal successors, (964), 6 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:58,088 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:18:58,088 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 245 [2022-11-20 11:18:58,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:18:59,336 INFO L130 PetriNetUnfolder]: 748/2388 cut-off events. [2022-11-20 11:18:59,336 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:18:59,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4027 conditions, 2388 events. 748/2388 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 14812 event pairs, 64 based on Foata normal form. 0/2134 useless extension candidates. Maximal degree in co-relation 3951. Up to 791 conditions per place. [2022-11-20 11:18:59,351 INFO L137 encePairwiseOnDemand]: 217/245 looper letters, 171 selfloop transitions, 70 changer transitions 0/385 dead transitions. [2022-11-20 11:18:59,351 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 385 transitions, 1257 flow [2022-11-20 11:18:59,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:18:59,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:18:59,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1161 transitions. [2022-11-20 11:18:59,356 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.789795918367347 [2022-11-20 11:18:59,356 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1161 transitions. [2022-11-20 11:18:59,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1161 transitions. [2022-11-20 11:18:59,358 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:18:59,358 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1161 transitions. [2022-11-20 11:18:59,361 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 193.5) internal successors, (1161), 6 states have internal predecessors, (1161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:59,365 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 245.0) internal successors, (1715), 7 states have internal predecessors, (1715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:59,366 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 245.0) internal successors, (1715), 7 states have internal predecessors, (1715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:59,366 INFO L175 Difference]: Start difference. First operand has 235 places, 229 transitions, 463 flow. Second operand 6 states and 1161 transitions. [2022-11-20 11:18:59,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 385 transitions, 1257 flow [2022-11-20 11:18:59,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 385 transitions, 1256 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:18:59,376 INFO L231 Difference]: Finished difference. Result has 243 places, 299 transitions, 940 flow [2022-11-20 11:18:59,377 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=460, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=940, PETRI_PLACES=243, PETRI_TRANSITIONS=299} [2022-11-20 11:18:59,381 INFO L288 CegarLoopForPetriNet]: 248 programPoint places, -5 predicate places. [2022-11-20 11:18:59,381 INFO L495 AbstractCegarLoop]: Abstraction has has 243 places, 299 transitions, 940 flow [2022-11-20 11:18:59,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 160.66666666666666) internal successors, (964), 6 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:59,382 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:18:59,382 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] [2022-11-20 11:18:59,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 11:18:59,383 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)] === [2022-11-20 11:18:59,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:18:59,384 INFO L85 PathProgramCache]: Analyzing trace with hash 99857008, now seen corresponding path program 1 times [2022-11-20 11:18:59,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:18:59,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716667760] [2022-11-20 11:18:59,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:18:59,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:18:59,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:19:00,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:19:00,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:19:00,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716667760] [2022-11-20 11:19:00,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716667760] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:19:00,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:19:00,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:19:00,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708189229] [2022-11-20 11:19:00,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:19:00,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:19:00,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:19:00,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:19:00,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:19:00,268 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 245 [2022-11-20 11:19:00,269 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 299 transitions, 940 flow. Second operand has 6 states, 6 states have (on average 161.5) internal successors, (969), 6 states have internal predecessors, (969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:19:00,270 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:19:00,270 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 245 [2022-11-20 11:19:00,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:19:01,235 INFO L130 PetriNetUnfolder]: 836/2696 cut-off events. [2022-11-20 11:19:01,235 INFO L131 PetriNetUnfolder]: For 881/881 co-relation queries the response was YES. [2022-11-20 11:19:01,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5940 conditions, 2696 events. 836/2696 cut-off events. For 881/881 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 17273 event pairs, 379 based on Foata normal form. 0/2509 useless extension candidates. Maximal degree in co-relation 5862. Up to 1700 conditions per place. [2022-11-20 11:19:01,256 INFO L137 encePairwiseOnDemand]: 230/245 looper letters, 166 selfloop transitions, 48 changer transitions 0/359 dead transitions. [2022-11-20 11:19:01,256 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 359 transitions, 1584 flow [2022-11-20 11:19:01,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:19:01,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:19:01,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1061 transitions. [2022-11-20 11:19:01,260 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7217687074829932 [2022-11-20 11:19:01,260 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1061 transitions. [2022-11-20 11:19:01,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1061 transitions. [2022-11-20 11:19:01,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:19:01,262 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1061 transitions. [2022-11-20 11:19:01,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 176.83333333333334) internal successors, (1061), 6 states have internal predecessors, (1061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:19:01,268 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 245.0) internal successors, (1715), 7 states have internal predecessors, (1715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:19:01,269 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 245.0) internal successors, (1715), 7 states have internal predecessors, (1715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:19:01,269 INFO L175 Difference]: Start difference. First operand has 243 places, 299 transitions, 940 flow. Second operand 6 states and 1061 transitions. [2022-11-20 11:19:01,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 359 transitions, 1584 flow [2022-11-20 11:19:01,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 359 transitions, 1584 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:19:01,289 INFO L231 Difference]: Finished difference. Result has 253 places, 342 transitions, 1328 flow [2022-11-20 11:19:01,290 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=940, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1328, PETRI_PLACES=253, PETRI_TRANSITIONS=342} [2022-11-20 11:19:01,291 INFO L288 CegarLoopForPetriNet]: 248 programPoint places, 5 predicate places. [2022-11-20 11:19:01,291 INFO L495 AbstractCegarLoop]: Abstraction has has 253 places, 342 transitions, 1328 flow [2022-11-20 11:19:01,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 161.5) internal successors, (969), 6 states have internal predecessors, (969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:19:01,294 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:19:01,294 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] [2022-11-20 11:19:01,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 11:19:01,294 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)] === [2022-11-20 11:19:01,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:19:01,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1941721989, now seen corresponding path program 1 times [2022-11-20 11:19:01,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:19:01,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111463352] [2022-11-20 11:19:01,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:19:01,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:19:01,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:19:02,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:19:02,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:19:02,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111463352] [2022-11-20 11:19:02,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111463352] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:19:02,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:19:02,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:19:02,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557276449] [2022-11-20 11:19:02,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:19:02,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:19:02,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:19:02,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:19:02,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:19:02,057 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 245 [2022-11-20 11:19:02,059 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 342 transitions, 1328 flow. Second operand has 6 states, 6 states have (on average 161.83333333333334) internal successors, (971), 6 states have internal predecessors, (971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:19:02,059 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:19:02,059 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 245 [2022-11-20 11:19:02,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:19:03,699 INFO L130 PetriNetUnfolder]: 1057/3510 cut-off events. [2022-11-20 11:19:03,699 INFO L131 PetriNetUnfolder]: For 2168/2276 co-relation queries the response was YES. [2022-11-20 11:19:03,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8630 conditions, 3510 events. 1057/3510 cut-off events. For 2168/2276 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 24868 event pairs, 222 based on Foata normal form. 0/3371 useless extension candidates. Maximal degree in co-relation 8544. Up to 1726 conditions per place. [2022-11-20 11:19:03,729 INFO L137 encePairwiseOnDemand]: 223/245 looper letters, 273 selfloop transitions, 135 changer transitions 4/557 dead transitions. [2022-11-20 11:19:03,729 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 557 transitions, 3244 flow [2022-11-20 11:19:03,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:19:03,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:19:03,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1123 transitions. [2022-11-20 11:19:03,734 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7639455782312925 [2022-11-20 11:19:03,734 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1123 transitions. [2022-11-20 11:19:03,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1123 transitions. [2022-11-20 11:19:03,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:19:03,735 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1123 transitions. [2022-11-20 11:19:03,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 187.16666666666666) internal successors, (1123), 6 states have internal predecessors, (1123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:19:03,742 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 245.0) internal successors, (1715), 7 states have internal predecessors, (1715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:19:03,743 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 245.0) internal successors, (1715), 7 states have internal predecessors, (1715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:19:03,743 INFO L175 Difference]: Start difference. First operand has 253 places, 342 transitions, 1328 flow. Second operand 6 states and 1123 transitions. [2022-11-20 11:19:03,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 557 transitions, 3244 flow [2022-11-20 11:19:03,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 557 transitions, 3226 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-11-20 11:19:03,772 INFO L231 Difference]: Finished difference. Result has 263 places, 472 transitions, 2668 flow [2022-11-20 11:19:03,774 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=1310, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=342, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=297, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2668, PETRI_PLACES=263, PETRI_TRANSITIONS=472} [2022-11-20 11:19:03,776 INFO L288 CegarLoopForPetriNet]: 248 programPoint places, 15 predicate places. [2022-11-20 11:19:03,776 INFO L495 AbstractCegarLoop]: Abstraction has has 263 places, 472 transitions, 2668 flow [2022-11-20 11:19:03,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 161.83333333333334) internal successors, (971), 6 states have internal predecessors, (971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:19:03,778 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:19:03,778 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] [2022-11-20 11:19:03,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 11:19:03,779 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)] === [2022-11-20 11:19:03,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:19:03,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1810613515, now seen corresponding path program 1 times [2022-11-20 11:19:03,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:19:03,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919705063] [2022-11-20 11:19:03,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:19:03,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:19:03,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:19:04,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:19:04,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:19:04,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919705063] [2022-11-20 11:19:04,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919705063] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:19:04,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:19:04,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:19:04,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639033135] [2022-11-20 11:19:04,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:19:04,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:19:04,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:19:04,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:19:04,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:19:04,498 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 245 [2022-11-20 11:19:04,499 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 472 transitions, 2668 flow. Second operand has 6 states, 6 states have (on average 162.5) internal successors, (975), 6 states have internal predecessors, (975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:19:04,500 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:19:04,500 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 245 [2022-11-20 11:19:04,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:19:06,013 INFO L130 PetriNetUnfolder]: 1055/3494 cut-off events. [2022-11-20 11:19:06,013 INFO L131 PetriNetUnfolder]: For 3970/4036 co-relation queries the response was YES. [2022-11-20 11:19:06,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10359 conditions, 3494 events. 1055/3494 cut-off events. For 3970/4036 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 24699 event pairs, 258 based on Foata normal form. 0/3402 useless extension candidates. Maximal degree in co-relation 10271. Up to 2152 conditions per place. [2022-11-20 11:19:06,061 INFO L137 encePairwiseOnDemand]: 230/245 looper letters, 331 selfloop transitions, 62 changer transitions 0/539 dead transitions. [2022-11-20 11:19:06,062 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 539 transitions, 3868 flow [2022-11-20 11:19:06,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:19:06,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:19:06,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1061 transitions. [2022-11-20 11:19:06,066 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7217687074829932 [2022-11-20 11:19:06,066 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1061 transitions. [2022-11-20 11:19:06,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1061 transitions. [2022-11-20 11:19:06,067 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:19:06,067 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1061 transitions. [2022-11-20 11:19:06,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 176.83333333333334) internal successors, (1061), 6 states have internal predecessors, (1061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:19:06,073 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 245.0) internal successors, (1715), 7 states have internal predecessors, (1715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:19:06,074 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 245.0) internal successors, (1715), 7 states have internal predecessors, (1715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:19:06,075 INFO L175 Difference]: Start difference. First operand has 263 places, 472 transitions, 2668 flow. Second operand 6 states and 1061 transitions. [2022-11-20 11:19:06,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 539 transitions, 3868 flow [2022-11-20 11:19:06,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 539 transitions, 3832 flow, removed 18 selfloop flow, removed 0 redundant places. [2022-11-20 11:19:06,117 INFO L231 Difference]: Finished difference. Result has 273 places, 521 transitions, 3258 flow [2022-11-20 11:19:06,118 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=2632, PETRI_DIFFERENCE_MINUEND_PLACES=263, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=472, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=434, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3258, PETRI_PLACES=273, PETRI_TRANSITIONS=521} [2022-11-20 11:19:06,119 INFO L288 CegarLoopForPetriNet]: 248 programPoint places, 25 predicate places. [2022-11-20 11:19:06,119 INFO L495 AbstractCegarLoop]: Abstraction has has 273 places, 521 transitions, 3258 flow [2022-11-20 11:19:06,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 162.5) internal successors, (975), 6 states have internal predecessors, (975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:19:06,120 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:19:06,120 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] [2022-11-20 11:19:06,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 11:19:06,120 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)] === [2022-11-20 11:19:06,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:19:06,121 INFO L85 PathProgramCache]: Analyzing trace with hash -75327835, now seen corresponding path program 1 times [2022-11-20 11:19:06,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:19:06,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165585170] [2022-11-20 11:19:06,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:19:06,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:19:06,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:19:07,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:19:07,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:19:07,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165585170] [2022-11-20 11:19:07,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165585170] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:19:07,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:19:07,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 11:19:07,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636582268] [2022-11-20 11:19:07,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:19:07,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:19:07,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:19:07,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:19:07,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:19:07,490 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 245 [2022-11-20 11:19:07,492 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 521 transitions, 3258 flow. Second operand has 13 states, 13 states have (on average 139.84615384615384) internal successors, (1818), 13 states have internal predecessors, (1818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:19:07,493 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:19:07,493 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 245 [2022-11-20 11:19:07,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:19:12,068 INFO L130 PetriNetUnfolder]: 1795/6034 cut-off events. [2022-11-20 11:19:12,068 INFO L131 PetriNetUnfolder]: For 9736/9829 co-relation queries the response was YES. [2022-11-20 11:19:12,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18992 conditions, 6034 events. 1795/6034 cut-off events. For 9736/9829 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 50954 event pairs, 260 based on Foata normal form. 46/5972 useless extension candidates. Maximal degree in co-relation 18889. Up to 1270 conditions per place. [2022-11-20 11:19:12,142 INFO L137 encePairwiseOnDemand]: 208/245 looper letters, 759 selfloop transitions, 232 changer transitions 7/1126 dead transitions. [2022-11-20 11:19:12,142 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 1126 transitions, 9720 flow [2022-11-20 11:19:12,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-20 11:19:12,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2022-11-20 11:19:12,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 4430 transitions. [2022-11-20 11:19:12,157 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6235045742434905 [2022-11-20 11:19:12,157 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 4430 transitions. [2022-11-20 11:19:12,157 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 4430 transitions. [2022-11-20 11:19:12,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:19:12,161 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 4430 transitions. [2022-11-20 11:19:12,172 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 152.75862068965517) internal successors, (4430), 29 states have internal predecessors, (4430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:19:12,197 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 245.0) internal successors, (7350), 30 states have internal predecessors, (7350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:19:12,210 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 245.0) internal successors, (7350), 30 states have internal predecessors, (7350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:19:12,210 INFO L175 Difference]: Start difference. First operand has 273 places, 521 transitions, 3258 flow. Second operand 29 states and 4430 transitions. [2022-11-20 11:19:12,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 1126 transitions, 9720 flow [2022-11-20 11:19:12,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 1126 transitions, 9524 flow, removed 98 selfloop flow, removed 0 redundant places. [2022-11-20 11:19:12,359 INFO L231 Difference]: Finished difference. Result has 314 places, 658 transitions, 5325 flow [2022-11-20 11:19:12,360 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=3146, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=521, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=5325, PETRI_PLACES=314, PETRI_TRANSITIONS=658} [2022-11-20 11:19:12,361 INFO L288 CegarLoopForPetriNet]: 248 programPoint places, 66 predicate places. [2022-11-20 11:19:12,361 INFO L495 AbstractCegarLoop]: Abstraction has has 314 places, 658 transitions, 5325 flow [2022-11-20 11:19:12,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 139.84615384615384) internal successors, (1818), 13 states have internal predecessors, (1818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:19:12,362 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:19:12,363 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] [2022-11-20 11:19:12,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 11:19:12,363 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)] === [2022-11-20 11:19:12,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:19:12,364 INFO L85 PathProgramCache]: Analyzing trace with hash -937072887, now seen corresponding path program 2 times [2022-11-20 11:19:12,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:19:12,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582682769] [2022-11-20 11:19:12,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:19:12,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:19:12,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:19:13,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:19:13,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:19:13,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582682769] [2022-11-20 11:19:13,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582682769] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:19:13,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:19:13,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 11:19:13,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445161919] [2022-11-20 11:19:13,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:19:13,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:19:13,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:19:13,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:19:13,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:19:13,927 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 245 [2022-11-20 11:19:13,929 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 658 transitions, 5325 flow. Second operand has 13 states, 13 states have (on average 139.84615384615384) internal successors, (1818), 13 states have internal predecessors, (1818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:19:13,929 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:19:13,929 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 245 [2022-11-20 11:19:13,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:19:18,414 INFO L130 PetriNetUnfolder]: 2648/8983 cut-off events. [2022-11-20 11:19:18,414 INFO L131 PetriNetUnfolder]: For 20681/20833 co-relation queries the response was YES. [2022-11-20 11:19:18,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30953 conditions, 8983 events. 2648/8983 cut-off events. For 20681/20833 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 85879 event pairs, 504 based on Foata normal form. 36/8878 useless extension candidates. Maximal degree in co-relation 30833. Up to 2617 conditions per place. [2022-11-20 11:19:18,522 INFO L137 encePairwiseOnDemand]: 213/245 looper letters, 739 selfloop transitions, 247 changer transitions 3/1117 dead transitions. [2022-11-20 11:19:18,522 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 1117 transitions, 11406 flow [2022-11-20 11:19:18,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-20 11:19:18,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-20 11:19:18,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3161 transitions. [2022-11-20 11:19:18,535 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6143828960155491 [2022-11-20 11:19:18,535 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3161 transitions. [2022-11-20 11:19:18,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3161 transitions. [2022-11-20 11:19:18,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:19:18,538 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3161 transitions. [2022-11-20 11:19:18,548 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 150.52380952380952) internal successors, (3161), 21 states have internal predecessors, (3161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:19:18,558 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 245.0) internal successors, (5390), 22 states have internal predecessors, (5390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:19:18,561 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 245.0) internal successors, (5390), 22 states have internal predecessors, (5390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:19:18,561 INFO L175 Difference]: Start difference. First operand has 314 places, 658 transitions, 5325 flow. Second operand 21 states and 3161 transitions. [2022-11-20 11:19:18,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 1117 transitions, 11406 flow [2022-11-20 11:19:18,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 1117 transitions, 11390 flow, removed 6 selfloop flow, removed 2 redundant places. [2022-11-20 11:19:18,844 INFO L231 Difference]: Finished difference. Result has 346 places, 792 transitions, 8084 flow [2022-11-20 11:19:18,845 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=5315, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=658, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=113, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=451, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=8084, PETRI_PLACES=346, PETRI_TRANSITIONS=792} [2022-11-20 11:19:18,846 INFO L288 CegarLoopForPetriNet]: 248 programPoint places, 98 predicate places. [2022-11-20 11:19:18,847 INFO L495 AbstractCegarLoop]: Abstraction has has 346 places, 792 transitions, 8084 flow [2022-11-20 11:19:18,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 139.84615384615384) internal successors, (1818), 13 states have internal predecessors, (1818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:19:18,848 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:19:18,848 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] [2022-11-20 11:19:18,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 11:19:18,848 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-20 11:19:18,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:19:18,849 INFO L85 PathProgramCache]: Analyzing trace with hash 2037729779, now seen corresponding path program 3 times [2022-11-20 11:19:18,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:19:18,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611076324] [2022-11-20 11:19:18,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:19:18,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:19:19,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:19:20,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:19:20,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:19:20,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611076324] [2022-11-20 11:19:20,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611076324] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:19:20,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:19:20,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 11:19:20,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752115192] [2022-11-20 11:19:20,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:19:20,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:19:20,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:19:20,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:19:20,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:19:20,489 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 245 [2022-11-20 11:19:20,492 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 346 places, 792 transitions, 8084 flow. Second operand has 13 states, 13 states have (on average 139.84615384615384) internal successors, (1818), 13 states have internal predecessors, (1818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:19:20,493 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:19:20,493 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 245 [2022-11-20 11:19:20,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:19:27,051 INFO L130 PetriNetUnfolder]: 3908/13274 cut-off events. [2022-11-20 11:19:27,051 INFO L131 PetriNetUnfolder]: For 39607/39916 co-relation queries the response was YES. [2022-11-20 11:19:27,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48564 conditions, 13274 events. 3908/13274 cut-off events. For 39607/39916 co-relation queries the response was YES. Maximal size of possible extension queue 401. Compared 140526 event pairs, 585 based on Foata normal form. 108/13186 useless extension candidates. Maximal degree in co-relation 48493. Up to 2811 conditions per place. [2022-11-20 11:19:27,414 INFO L137 encePairwiseOnDemand]: 210/245 looper letters, 792 selfloop transitions, 468 changer transitions 5/1393 dead transitions. [2022-11-20 11:19:27,422 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 373 places, 1393 transitions, 16518 flow [2022-11-20 11:19:27,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-20 11:19:27,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-20 11:19:27,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 4230 transitions. [2022-11-20 11:19:27,434 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6166180758017493 [2022-11-20 11:19:27,434 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 4230 transitions. [2022-11-20 11:19:27,434 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 4230 transitions. [2022-11-20 11:19:27,437 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:19:27,437 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 4230 transitions. [2022-11-20 11:19:27,448 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 151.07142857142858) internal successors, (4230), 28 states have internal predecessors, (4230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:19:27,463 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 245.0) internal successors, (7105), 29 states have internal predecessors, (7105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:19:27,466 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 245.0) internal successors, (7105), 29 states have internal predecessors, (7105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:19:27,467 INFO L175 Difference]: Start difference. First operand has 346 places, 792 transitions, 8084 flow. Second operand 28 states and 4230 transitions. [2022-11-20 11:19:27,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 373 places, 1393 transitions, 16518 flow [2022-11-20 11:19:28,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 371 places, 1393 transitions, 16428 flow, removed 43 selfloop flow, removed 2 redundant places. [2022-11-20 11:19:28,188 INFO L231 Difference]: Finished difference. Result has 385 places, 965 transitions, 12670 flow [2022-11-20 11:19:28,189 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=8042, PETRI_DIFFERENCE_MINUEND_PLACES=344, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=792, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=306, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=390, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=12670, PETRI_PLACES=385, PETRI_TRANSITIONS=965} [2022-11-20 11:19:28,190 INFO L288 CegarLoopForPetriNet]: 248 programPoint places, 137 predicate places. [2022-11-20 11:19:28,191 INFO L495 AbstractCegarLoop]: Abstraction has has 385 places, 965 transitions, 12670 flow [2022-11-20 11:19:28,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 139.84615384615384) internal successors, (1818), 13 states have internal predecessors, (1818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:19:28,192 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:19:28,192 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] [2022-11-20 11:19:28,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 11:19:28,193 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-20 11:19:28,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:19:28,193 INFO L85 PathProgramCache]: Analyzing trace with hash 531848827, now seen corresponding path program 1 times [2022-11-20 11:19:28,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:19:28,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131895898] [2022-11-20 11:19:28,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:19:28,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:19:28,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:19:30,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:19:30,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:19:30,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131895898] [2022-11-20 11:19:30,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131895898] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:19:30,327 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:19:30,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 11:19:30,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588107705] [2022-11-20 11:19:30,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:19:30,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:19:30,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:19:30,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:19:30,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:19:30,333 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 245 [2022-11-20 11:19:30,335 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 385 places, 965 transitions, 12670 flow. Second operand has 13 states, 13 states have (on average 144.46153846153845) internal successors, (1878), 13 states have internal predecessors, (1878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:19:30,335 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:19:30,335 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 245 [2022-11-20 11:19:30,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:19:35,962 INFO L130 PetriNetUnfolder]: 3604/12206 cut-off events. [2022-11-20 11:19:35,962 INFO L131 PetriNetUnfolder]: For 51192/51400 co-relation queries the response was YES. [2022-11-20 11:19:36,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48645 conditions, 12206 events. 3604/12206 cut-off events. For 51192/51400 co-relation queries the response was YES. Maximal size of possible extension queue 338. Compared 125479 event pairs, 704 based on Foata normal form. 82/12186 useless extension candidates. Maximal degree in co-relation 48553. Up to 6701 conditions per place. [2022-11-20 11:19:36,134 INFO L137 encePairwiseOnDemand]: 226/245 looper letters, 743 selfloop transitions, 184 changer transitions 0/1095 dead transitions. [2022-11-20 11:19:36,135 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 1095 transitions, 16018 flow [2022-11-20 11:19:36,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 11:19:36,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-20 11:19:36,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2030 transitions. [2022-11-20 11:19:36,144 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6373626373626373 [2022-11-20 11:19:36,144 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2030 transitions. [2022-11-20 11:19:36,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2030 transitions. [2022-11-20 11:19:36,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:19:36,146 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2030 transitions. [2022-11-20 11:19:36,151 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 156.15384615384616) internal successors, (2030), 13 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:19:36,157 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 245.0) internal successors, (3430), 14 states have internal predecessors, (3430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:19:36,159 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 245.0) internal successors, (3430), 14 states have internal predecessors, (3430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:19:36,159 INFO L175 Difference]: Start difference. First operand has 385 places, 965 transitions, 12670 flow. Second operand 13 states and 2030 transitions. [2022-11-20 11:19:36,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 1095 transitions, 16018 flow [2022-11-20 11:19:36,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 385 places, 1095 transitions, 15810 flow, removed 75 selfloop flow, removed 12 redundant places. [2022-11-20 11:19:36,916 INFO L231 Difference]: Finished difference. Result has 390 places, 974 transitions, 13233 flow [2022-11-20 11:19:36,918 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=12484, PETRI_DIFFERENCE_MINUEND_PLACES=373, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=965, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=175, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=784, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=13233, PETRI_PLACES=390, PETRI_TRANSITIONS=974} [2022-11-20 11:19:36,918 INFO L288 CegarLoopForPetriNet]: 248 programPoint places, 142 predicate places. [2022-11-20 11:19:36,919 INFO L495 AbstractCegarLoop]: Abstraction has has 390 places, 974 transitions, 13233 flow [2022-11-20 11:19:36,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 144.46153846153845) internal successors, (1878), 13 states have internal predecessors, (1878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:19:36,920 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:19:36,920 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] [2022-11-20 11:19:36,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 11:19:36,921 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)] === [2022-11-20 11:19:36,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:19:36,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1164769821, now seen corresponding path program 4 times [2022-11-20 11:19:36,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:19:36,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939390483] [2022-11-20 11:19:36,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:19:36,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:19:37,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:19:38,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:19:38,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:19:38,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939390483] [2022-11-20 11:19:38,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939390483] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:19:38,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:19:38,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 11:19:38,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121253159] [2022-11-20 11:19:38,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:19:38,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:19:38,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:19:38,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:19:38,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:19:38,479 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 245 [2022-11-20 11:19:38,481 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 974 transitions, 13233 flow. Second operand has 13 states, 13 states have (on average 139.84615384615384) internal successors, (1818), 13 states have internal predecessors, (1818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:19:38,481 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:19:38,481 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 245 [2022-11-20 11:19:38,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:19:48,437 INFO L130 PetriNetUnfolder]: 5416/18526 cut-off events. [2022-11-20 11:19:48,438 INFO L131 PetriNetUnfolder]: For 89835/90383 co-relation queries the response was YES. [2022-11-20 11:19:48,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75579 conditions, 18526 events. 5416/18526 cut-off events. For 89835/90383 co-relation queries the response was YES. Maximal size of possible extension queue 605. Compared 211606 event pairs, 902 based on Foata normal form. 221/18504 useless extension candidates. Maximal degree in co-relation 75446. Up to 4210 conditions per place. [2022-11-20 11:19:48,880 INFO L137 encePairwiseOnDemand]: 208/245 looper letters, 844 selfloop transitions, 597 changer transitions 6/1576 dead transitions. [2022-11-20 11:19:48,880 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 1576 transitions, 22929 flow [2022-11-20 11:19:48,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 11:19:48,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 11:19:48,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3151 transitions. [2022-11-20 11:19:48,889 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.643061224489796 [2022-11-20 11:19:48,889 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 3151 transitions. [2022-11-20 11:19:48,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 3151 transitions. [2022-11-20 11:19:48,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:19:48,891 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 3151 transitions. [2022-11-20 11:19:48,898 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 157.55) internal successors, (3151), 20 states have internal predecessors, (3151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:19:48,906 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 245.0) internal successors, (5145), 21 states have internal predecessors, (5145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:19:48,908 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 245.0) internal successors, (5145), 21 states have internal predecessors, (5145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:19:48,909 INFO L175 Difference]: Start difference. First operand has 390 places, 974 transitions, 13233 flow. Second operand 20 states and 3151 transitions. [2022-11-20 11:19:48,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 1576 transitions, 22929 flow [2022-11-20 11:19:49,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 402 places, 1576 transitions, 22772 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-11-20 11:19:50,011 INFO L231 Difference]: Finished difference. Result has 418 places, 1143 transitions, 18839 flow [2022-11-20 11:19:50,013 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=13152, PETRI_DIFFERENCE_MINUEND_PLACES=383, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=974, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=428, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=439, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=18839, PETRI_PLACES=418, PETRI_TRANSITIONS=1143} [2022-11-20 11:19:50,013 INFO L288 CegarLoopForPetriNet]: 248 programPoint places, 170 predicate places. [2022-11-20 11:19:50,013 INFO L495 AbstractCegarLoop]: Abstraction has has 418 places, 1143 transitions, 18839 flow [2022-11-20 11:19:50,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 139.84615384615384) internal successors, (1818), 13 states have internal predecessors, (1818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:19:50,014 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:19:50,015 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] [2022-11-20 11:19:50,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 11:19:50,015 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)] === [2022-11-20 11:19:50,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:19:50,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1446802333, now seen corresponding path program 5 times [2022-11-20 11:19:50,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:19:50,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931650417] [2022-11-20 11:19:50,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:19:50,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:19:50,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:19:51,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:19:51,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:19:51,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931650417] [2022-11-20 11:19:51,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931650417] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:19:51,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:19:51,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 11:19:51,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771581430] [2022-11-20 11:19:51,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:19:51,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:19:51,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:19:51,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:19:51,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:19:51,297 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 245 [2022-11-20 11:19:51,301 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 1143 transitions, 18839 flow. Second operand has 13 states, 13 states have (on average 139.84615384615384) internal successors, (1818), 13 states have internal predecessors, (1818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:19:51,302 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:19:51,302 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 245 [2022-11-20 11:19:51,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:20:02,767 INFO L130 PetriNetUnfolder]: 5509/18585 cut-off events. [2022-11-20 11:20:02,767 INFO L131 PetriNetUnfolder]: For 119688/120534 co-relation queries the response was YES. [2022-11-20 11:20:03,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81736 conditions, 18585 events. 5509/18585 cut-off events. For 119688/120534 co-relation queries the response was YES. Maximal size of possible extension queue 587. Compared 210692 event pairs, 975 based on Foata normal form. 145/18481 useless extension candidates. Maximal degree in co-relation 81630. Up to 8025 conditions per place. [2022-11-20 11:20:03,092 INFO L137 encePairwiseOnDemand]: 215/245 looper letters, 1017 selfloop transitions, 406 changer transitions 7/1559 dead transitions. [2022-11-20 11:20:03,093 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 1559 transitions, 25723 flow [2022-11-20 11:20:03,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-20 11:20:03,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2022-11-20 11:20:03,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 4344 transitions. [2022-11-20 11:20:03,101 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6114004222378606 [2022-11-20 11:20:03,101 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 4344 transitions. [2022-11-20 11:20:03,101 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 4344 transitions. [2022-11-20 11:20:03,104 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:20:03,104 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 4344 transitions. [2022-11-20 11:20:03,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 149.79310344827587) internal successors, (4344), 29 states have internal predecessors, (4344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:20:03,126 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 245.0) internal successors, (7350), 30 states have internal predecessors, (7350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:20:03,130 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 245.0) internal successors, (7350), 30 states have internal predecessors, (7350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:20:03,130 INFO L175 Difference]: Start difference. First operand has 418 places, 1143 transitions, 18839 flow. Second operand 29 states and 4344 transitions. [2022-11-20 11:20:03,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 446 places, 1559 transitions, 25723 flow [2022-11-20 11:20:05,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 1559 transitions, 25689 flow, removed 15 selfloop flow, removed 2 redundant places. [2022-11-20 11:20:05,103 INFO L231 Difference]: Finished difference. Result has 450 places, 1208 transitions, 21081 flow [2022-11-20 11:20:05,104 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=18811, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=342, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=750, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=21081, PETRI_PLACES=450, PETRI_TRANSITIONS=1208} [2022-11-20 11:20:05,105 INFO L288 CegarLoopForPetriNet]: 248 programPoint places, 202 predicate places. [2022-11-20 11:20:05,105 INFO L495 AbstractCegarLoop]: Abstraction has has 450 places, 1208 transitions, 21081 flow [2022-11-20 11:20:05,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 139.84615384615384) internal successors, (1818), 13 states have internal predecessors, (1818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:20:05,106 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:20:05,106 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] [2022-11-20 11:20:05,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-20 11:20:05,106 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)] === [2022-11-20 11:20:05,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:20:05,107 INFO L85 PathProgramCache]: Analyzing trace with hash -798009259, now seen corresponding path program 6 times [2022-11-20 11:20:05,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:20:05,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526225086] [2022-11-20 11:20:05,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:20:05,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:20:05,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:06,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:20:06,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:20:06,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526225086] [2022-11-20 11:20:06,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526225086] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:20:06,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:20:06,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 11:20:06,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107533571] [2022-11-20 11:20:06,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:20:06,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:20:06,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:20:06,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:20:06,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:20:06,274 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 245 [2022-11-20 11:20:06,275 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 1208 transitions, 21081 flow. Second operand has 13 states, 13 states have (on average 139.84615384615384) internal successors, (1818), 13 states have internal predecessors, (1818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:20:06,276 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:20:06,276 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 245 [2022-11-20 11:20:06,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:20:18,971 INFO L130 PetriNetUnfolder]: 6068/20539 cut-off events. [2022-11-20 11:20:18,972 INFO L131 PetriNetUnfolder]: For 155174/155773 co-relation queries the response was YES. [2022-11-20 11:20:19,264 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94355 conditions, 20539 events. 6068/20539 cut-off events. For 155174/155773 co-relation queries the response was YES. Maximal size of possible extension queue 666. Compared 239027 event pairs, 965 based on Foata normal form. 234/20497 useless extension candidates. Maximal degree in co-relation 94239. Up to 5235 conditions per place. [2022-11-20 11:20:19,327 INFO L137 encePairwiseOnDemand]: 208/245 looper letters, 1014 selfloop transitions, 664 changer transitions 6/1813 dead transitions. [2022-11-20 11:20:19,327 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 477 places, 1813 transitions, 31431 flow [2022-11-20 11:20:19,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-20 11:20:19,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-20 11:20:19,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 4272 transitions. [2022-11-20 11:20:19,335 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6227405247813411 [2022-11-20 11:20:19,335 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 4272 transitions. [2022-11-20 11:20:19,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 4272 transitions. [2022-11-20 11:20:19,337 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:20:19,338 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 4272 transitions. [2022-11-20 11:20:19,346 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 152.57142857142858) internal successors, (4272), 28 states have internal predecessors, (4272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:20:19,356 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 245.0) internal successors, (7105), 29 states have internal predecessors, (7105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:20:19,359 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 245.0) internal successors, (7105), 29 states have internal predecessors, (7105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:20:19,359 INFO L175 Difference]: Start difference. First operand has 450 places, 1208 transitions, 21081 flow. Second operand 28 states and 4272 transitions. [2022-11-20 11:20:19,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 477 places, 1813 transitions, 31431 flow [2022-11-20 11:20:21,700 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 462 places, 1813 transitions, 31301 flow, removed 3 selfloop flow, removed 15 redundant places. [2022-11-20 11:20:21,730 INFO L231 Difference]: Finished difference. Result has 473 places, 1325 transitions, 26243 flow [2022-11-20 11:20:21,731 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=20955, PETRI_DIFFERENCE_MINUEND_PLACES=435, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=547, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=557, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=26243, PETRI_PLACES=473, PETRI_TRANSITIONS=1325} [2022-11-20 11:20:21,732 INFO L288 CegarLoopForPetriNet]: 248 programPoint places, 225 predicate places. [2022-11-20 11:20:21,732 INFO L495 AbstractCegarLoop]: Abstraction has has 473 places, 1325 transitions, 26243 flow [2022-11-20 11:20:21,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 139.84615384615384) internal successors, (1818), 13 states have internal predecessors, (1818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:20:21,732 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:20:21,733 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] [2022-11-20 11:20:21,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-20 11:20:21,733 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)] === [2022-11-20 11:20:21,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:20:21,734 INFO L85 PathProgramCache]: Analyzing trace with hash 391395101, now seen corresponding path program 7 times [2022-11-20 11:20:21,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:20:21,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921629496] [2022-11-20 11:20:21,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:20:21,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:20:21,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:22,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:20:22,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:20:22,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921629496] [2022-11-20 11:20:22,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921629496] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:20:22,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:20:22,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 11:20:22,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574733802] [2022-11-20 11:20:22,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:20:22,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:20:22,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:20:22,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:20:22,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:20:22,759 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 245 [2022-11-20 11:20:22,761 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 473 places, 1325 transitions, 26243 flow. Second operand has 13 states, 13 states have (on average 139.84615384615384) internal successors, (1818), 13 states have internal predecessors, (1818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:20:22,761 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:20:22,761 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 245 [2022-11-20 11:20:22,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:20:37,200 INFO L130 PetriNetUnfolder]: 6648/22499 cut-off events. [2022-11-20 11:20:37,200 INFO L131 PetriNetUnfolder]: For 213262/213979 co-relation queries the response was YES. [2022-11-20 11:20:37,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108876 conditions, 22499 events. 6648/22499 cut-off events. For 213262/213979 co-relation queries the response was YES. Maximal size of possible extension queue 731. Compared 266778 event pairs, 1070 based on Foata normal form. 230/22423 useless extension candidates. Maximal degree in co-relation 108749. Up to 6111 conditions per place. [2022-11-20 11:20:37,927 INFO L137 encePairwiseOnDemand]: 208/245 looper letters, 1104 selfloop transitions, 688 changer transitions 5/1926 dead transitions. [2022-11-20 11:20:37,927 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 499 places, 1926 transitions, 37319 flow [2022-11-20 11:20:37,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-20 11:20:37,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2022-11-20 11:20:37,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 4114 transitions. [2022-11-20 11:20:37,937 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6219198790627362 [2022-11-20 11:20:37,937 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 4114 transitions. [2022-11-20 11:20:37,937 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 4114 transitions. [2022-11-20 11:20:37,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:20:37,940 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 4114 transitions. [2022-11-20 11:20:37,950 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 152.37037037037038) internal successors, (4114), 27 states have internal predecessors, (4114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:20:37,961 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 245.0) internal successors, (6860), 28 states have internal predecessors, (6860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:20:37,963 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 245.0) internal successors, (6860), 28 states have internal predecessors, (6860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:20:37,963 INFO L175 Difference]: Start difference. First operand has 473 places, 1325 transitions, 26243 flow. Second operand 27 states and 4114 transitions. [2022-11-20 11:20:37,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 499 places, 1926 transitions, 37319 flow [2022-11-20 11:20:41,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 484 places, 1926 transitions, 37153 flow, removed 21 selfloop flow, removed 15 redundant places. [2022-11-20 11:20:41,438 INFO L231 Difference]: Finished difference. Result has 494 places, 1444 transitions, 31877 flow [2022-11-20 11:20:41,439 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=26079, PETRI_DIFFERENCE_MINUEND_PLACES=458, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=569, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=650, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=31877, PETRI_PLACES=494, PETRI_TRANSITIONS=1444} [2022-11-20 11:20:41,440 INFO L288 CegarLoopForPetriNet]: 248 programPoint places, 246 predicate places. [2022-11-20 11:20:41,440 INFO L495 AbstractCegarLoop]: Abstraction has has 494 places, 1444 transitions, 31877 flow [2022-11-20 11:20:41,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 139.84615384615384) internal successors, (1818), 13 states have internal predecessors, (1818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:20:41,440 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:20:41,440 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] [2022-11-20 11:20:41,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-20 11:20:41,440 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)] === [2022-11-20 11:20:41,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:20:41,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1677078751, now seen corresponding path program 8 times [2022-11-20 11:20:41,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:20:41,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115012447] [2022-11-20 11:20:41,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:20:41,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:20:41,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:42,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:20:42,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:20:42,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115012447] [2022-11-20 11:20:42,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115012447] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:20:42,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:20:42,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 11:20:42,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181389861] [2022-11-20 11:20:42,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:20:42,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:20:42,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:20:42,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:20:42,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:20:42,242 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 245 [2022-11-20 11:20:42,244 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 494 places, 1444 transitions, 31877 flow. Second operand has 13 states, 13 states have (on average 139.84615384615384) internal successors, (1818), 13 states have internal predecessors, (1818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:20:42,244 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:20:42,244 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 245 [2022-11-20 11:20:42,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand