./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-chromosome-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993a0c41-c8cd-464d-8305-360c545911d1/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993a0c41-c8cd-464d-8305-360c545911d1/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993a0c41-c8cd-464d-8305-360c545911d1/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993a0c41-c8cd-464d-8305-360c545911d1/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-chromosome-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993a0c41-c8cd-464d-8305-360c545911d1/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993a0c41-c8cd-464d-8305-360c545911d1/bin/uautomizer-TMbwUNV5ro --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 795c382fbb0026f2f6f7212254176553809c7311a8058a10cea47f6b1b03373b --- 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-8393723 [2022-11-18 21:00:38,750 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 21:00:38,752 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 21:00:38,783 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 21:00:38,786 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 21:00:38,790 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 21:00:38,793 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 21:00:38,797 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 21:00:38,800 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 21:00:38,805 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 21:00:38,807 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 21:00:38,809 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 21:00:38,809 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 21:00:38,812 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 21:00:38,813 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 21:00:38,815 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 21:00:38,817 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 21:00:38,818 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 21:00:38,819 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 21:00:38,828 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 21:00:38,830 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 21:00:38,832 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 21:00:38,834 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 21:00:38,835 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 21:00:38,843 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 21:00:38,844 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 21:00:38,844 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 21:00:38,846 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 21:00:38,847 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 21:00:38,848 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 21:00:38,848 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 21:00:38,849 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 21:00:38,851 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 21:00:38,852 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 21:00:38,853 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 21:00:38,854 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 21:00:38,854 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 21:00:38,855 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 21:00:38,855 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 21:00:38,856 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 21:00:38,857 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 21:00:38,857 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993a0c41-c8cd-464d-8305-360c545911d1/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 21:00:38,899 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 21:00:38,900 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 21:00:38,901 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 21:00:38,901 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 21:00:38,902 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 21:00:38,903 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 21:00:38,903 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 21:00:38,904 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 21:00:38,904 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 21:00:38,904 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 21:00:38,905 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 21:00:38,906 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 21:00:38,906 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 21:00:38,906 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 21:00:38,907 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 21:00:38,907 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 21:00:38,907 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 21:00:38,907 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 21:00:38,908 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 21:00:38,908 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 21:00:38,908 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 21:00:38,908 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 21:00:38,909 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 21:00:38,909 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 21:00:38,909 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 21:00:38,909 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 21:00:38,909 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:00:38,910 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 21:00:38,910 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 21:00:38,910 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 21:00:38,910 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 21:00:38,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 21:00:38,911 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 21:00:38,911 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 21:00:38,911 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 21:00:38,912 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_993a0c41-c8cd-464d-8305-360c545911d1/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993a0c41-c8cd-464d-8305-360c545911d1/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 795c382fbb0026f2f6f7212254176553809c7311a8058a10cea47f6b1b03373b [2022-11-18 21:00:39,257 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 21:00:39,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 21:00:39,280 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 21:00:39,281 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 21:00:39,282 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 21:00:39,283 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993a0c41-c8cd-464d-8305-360c545911d1/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/chl-chromosome-trans.wvr.c [2022-11-18 21:00:39,353 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993a0c41-c8cd-464d-8305-360c545911d1/bin/uautomizer-TMbwUNV5ro/data/634061b22/d79947a13580421d96145e6c218017bd/FLAG9bbd2bb4b [2022-11-18 21:00:39,863 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 21:00:39,863 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993a0c41-c8cd-464d-8305-360c545911d1/sv-benchmarks/c/weaver/chl-chromosome-trans.wvr.c [2022-11-18 21:00:39,878 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993a0c41-c8cd-464d-8305-360c545911d1/bin/uautomizer-TMbwUNV5ro/data/634061b22/d79947a13580421d96145e6c218017bd/FLAG9bbd2bb4b [2022-11-18 21:00:40,243 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993a0c41-c8cd-464d-8305-360c545911d1/bin/uautomizer-TMbwUNV5ro/data/634061b22/d79947a13580421d96145e6c218017bd [2022-11-18 21:00:40,247 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 21:00:40,250 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 21:00:40,255 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 21:00:40,255 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 21:00:40,259 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 21:00:40,260 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:00:40" (1/1) ... [2022-11-18 21:00:40,262 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@118f3303 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:40, skipping insertion in model container [2022-11-18 21:00:40,263 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:00:40" (1/1) ... [2022-11-18 21:00:40,272 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 21:00:40,307 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 21:00:40,704 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993a0c41-c8cd-464d-8305-360c545911d1/sv-benchmarks/c/weaver/chl-chromosome-trans.wvr.c[3034,3047] [2022-11-18 21:00:40,711 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:00:40,723 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 21:00:40,794 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993a0c41-c8cd-464d-8305-360c545911d1/sv-benchmarks/c/weaver/chl-chromosome-trans.wvr.c[3034,3047] [2022-11-18 21:00:40,799 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:00:40,827 INFO L208 MainTranslator]: Completed translation [2022-11-18 21:00:40,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:40 WrapperNode [2022-11-18 21:00:40,830 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 21:00:40,831 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 21:00:40,831 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 21:00:40,832 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 21:00:40,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:40" (1/1) ... [2022-11-18 21:00:40,867 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:40" (1/1) ... [2022-11-18 21:00:40,927 INFO L138 Inliner]: procedures = 26, calls = 46, calls flagged for inlining = 16, calls inlined = 24, statements flattened = 459 [2022-11-18 21:00:40,928 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 21:00:40,929 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 21:00:40,929 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 21:00:40,929 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 21:00:40,938 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:40" (1/1) ... [2022-11-18 21:00:40,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:40" (1/1) ... [2022-11-18 21:00:40,945 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:40" (1/1) ... [2022-11-18 21:00:40,956 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:40" (1/1) ... [2022-11-18 21:00:40,993 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:40" (1/1) ... [2022-11-18 21:00:40,999 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:40" (1/1) ... [2022-11-18 21:00:41,001 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:40" (1/1) ... [2022-11-18 21:00:41,004 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:40" (1/1) ... [2022-11-18 21:00:41,013 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 21:00:41,022 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 21:00:41,023 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 21:00:41,023 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 21:00:41,024 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:40" (1/1) ... [2022-11-18 21:00:41,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:00:41,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993a0c41-c8cd-464d-8305-360c545911d1/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:00:41,048 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993a0c41-c8cd-464d-8305-360c545911d1/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 21:00:41,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993a0c41-c8cd-464d-8305-360c545911d1/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 21:00:41,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 21:00:41,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 21:00:41,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 21:00:41,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 21:00:41,094 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 21:00:41,100 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 21:00:41,100 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 21:00:41,100 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 21:00:41,100 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-18 21:00:41,101 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-18 21:00:41,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 21:00:41,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 21:00:41,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 21:00:41,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 21:00:41,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 21:00:41,104 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 21:00:41,301 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 21:00:41,303 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 21:00:42,225 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 21:00:42,238 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 21:00:42,238 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-18 21:00:42,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:00:42 BoogieIcfgContainer [2022-11-18 21:00:42,241 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 21:00:42,243 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 21:00:42,244 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 21:00:42,247 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 21:00:42,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:00:40" (1/3) ... [2022-11-18 21:00:42,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5460478 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:00:42, skipping insertion in model container [2022-11-18 21:00:42,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:40" (2/3) ... [2022-11-18 21:00:42,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5460478 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:00:42, skipping insertion in model container [2022-11-18 21:00:42,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:00:42" (3/3) ... [2022-11-18 21:00:42,251 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-chromosome-trans.wvr.c [2022-11-18 21:00:42,261 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 21:00:42,272 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 21:00:42,273 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 48 error locations. [2022-11-18 21:00:42,273 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 21:00:42,492 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-18 21:00:42,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 573 places, 596 transitions, 1216 flow [2022-11-18 21:00:42,867 INFO L130 PetriNetUnfolder]: 33/593 cut-off events. [2022-11-18 21:00:42,868 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 21:00:42,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 606 conditions, 593 events. 33/593 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1312 event pairs, 0 based on Foata normal form. 0/512 useless extension candidates. Maximal degree in co-relation 426. Up to 2 conditions per place. [2022-11-18 21:00:42,888 INFO L82 GeneralOperation]: Start removeDead. Operand has 573 places, 596 transitions, 1216 flow [2022-11-18 21:00:42,904 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 548 places, 569 transitions, 1156 flow [2022-11-18 21:00:42,922 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 21:00:42,928 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;@44ca2ce3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 21:00:42,928 INFO L358 AbstractCegarLoop]: Starting to check reachability of 84 error locations. [2022-11-18 21:00:42,937 INFO L130 PetriNetUnfolder]: 3/64 cut-off events. [2022-11-18 21:00:42,938 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 21:00:42,938 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:00:42,939 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] [2022-11-18 21:00:42,939 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2022-11-18 21:00:42,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:42,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1202938778, now seen corresponding path program 1 times [2022-11-18 21:00:42,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:42,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939104870] [2022-11-18 21:00:42,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:42,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:43,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:43,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:43,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:00:43,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939104870] [2022-11-18 21:00:43,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939104870] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:00:43,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:00:43,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:00:43,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039183852] [2022-11-18 21:00:43,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:00:43,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 21:00:43,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:00:43,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 21:00:43,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 21:00:43,251 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 567 out of 596 [2022-11-18 21:00:43,259 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 548 places, 569 transitions, 1156 flow. Second operand has 2 states, 2 states have (on average 567.5) internal successors, (1135), 2 states have internal predecessors, (1135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:43,259 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:00:43,260 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 567 of 596 [2022-11-18 21:00:43,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:00:43,457 INFO L130 PetriNetUnfolder]: 10/548 cut-off events. [2022-11-18 21:00:43,457 INFO L131 PetriNetUnfolder]: For 14/16 co-relation queries the response was YES. [2022-11-18 21:00:43,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 568 conditions, 548 events. 10/548 cut-off events. For 14/16 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1274 event pairs, 0 based on Foata normal form. 30/506 useless extension candidates. Maximal degree in co-relation 411. Up to 7 conditions per place. [2022-11-18 21:00:43,469 INFO L137 encePairwiseOnDemand]: 575/596 looper letters, 6 selfloop transitions, 0 changer transitions 6/548 dead transitions. [2022-11-18 21:00:43,470 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 549 places, 548 transitions, 1126 flow [2022-11-18 21:00:43,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 21:00:43,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-18 21:00:43,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1161 transitions. [2022-11-18 21:00:43,495 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9739932885906041 [2022-11-18 21:00:43,496 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1161 transitions. [2022-11-18 21:00:43,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1161 transitions. [2022-11-18 21:00:43,503 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:00:43,506 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1161 transitions. [2022-11-18 21:00:43,513 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 580.5) internal successors, (1161), 2 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) [2022-11-18 21:00:43,525 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 596.0) internal successors, (1788), 3 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:43,528 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 596.0) internal successors, (1788), 3 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:43,530 INFO L175 Difference]: Start difference. First operand has 548 places, 569 transitions, 1156 flow. Second operand 2 states and 1161 transitions. [2022-11-18 21:00:43,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 549 places, 548 transitions, 1126 flow [2022-11-18 21:00:43,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 543 places, 548 transitions, 1114 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-18 21:00:43,553 INFO L231 Difference]: Finished difference. Result has 543 places, 542 transitions, 1090 flow [2022-11-18 21:00:43,556 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=596, PETRI_DIFFERENCE_MINUEND_FLOW=1102, PETRI_DIFFERENCE_MINUEND_PLACES=542, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=548, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=548, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=1090, PETRI_PLACES=543, PETRI_TRANSITIONS=542} [2022-11-18 21:00:43,562 INFO L288 CegarLoopForPetriNet]: 548 programPoint places, -5 predicate places. [2022-11-18 21:00:43,563 INFO L495 AbstractCegarLoop]: Abstraction has has 543 places, 542 transitions, 1090 flow [2022-11-18 21:00:43,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 567.5) internal successors, (1135), 2 states have internal predecessors, (1135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:43,564 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:00:43,565 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] [2022-11-18 21:00:43,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 21:00:43,565 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2022-11-18 21:00:43,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:43,566 INFO L85 PathProgramCache]: Analyzing trace with hash 539871557, now seen corresponding path program 1 times [2022-11-18 21:00:43,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:43,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666756804] [2022-11-18 21:00:43,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:43,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:43,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:43,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:43,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:00:43,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666756804] [2022-11-18 21:00:43,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666756804] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:00:43,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:00:43,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:00:43,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116261010] [2022-11-18 21:00:43,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:00:43,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:00:43,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:00:43,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:00:43,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:00:43,726 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 555 out of 596 [2022-11-18 21:00:43,728 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 543 places, 542 transitions, 1090 flow. Second operand has 3 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 3 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:43,728 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:00:43,728 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 555 of 596 [2022-11-18 21:00:43,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:00:44,235 INFO L130 PetriNetUnfolder]: 56/1347 cut-off events. [2022-11-18 21:00:44,235 INFO L131 PetriNetUnfolder]: For 14/16 co-relation queries the response was YES. [2022-11-18 21:00:44,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1432 conditions, 1347 events. 56/1347 cut-off events. For 14/16 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 6833 event pairs, 21 based on Foata normal form. 0/1149 useless extension candidates. Maximal degree in co-relation 1429. Up to 72 conditions per place. [2022-11-18 21:00:44,268 INFO L137 encePairwiseOnDemand]: 593/596 looper letters, 15 selfloop transitions, 2 changer transitions 0/541 dead transitions. [2022-11-18 21:00:44,268 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 538 places, 541 transitions, 1122 flow [2022-11-18 21:00:44,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:00:44,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:00:44,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1683 transitions. [2022-11-18 21:00:44,273 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9412751677852349 [2022-11-18 21:00:44,273 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1683 transitions. [2022-11-18 21:00:44,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1683 transitions. [2022-11-18 21:00:44,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:00:44,274 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1683 transitions. [2022-11-18 21:00:44,278 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 561.0) internal successors, (1683), 3 states have internal predecessors, (1683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:44,283 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:44,284 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:44,285 INFO L175 Difference]: Start difference. First operand has 543 places, 542 transitions, 1090 flow. Second operand 3 states and 1683 transitions. [2022-11-18 21:00:44,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 538 places, 541 transitions, 1122 flow [2022-11-18 21:00:44,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 538 places, 541 transitions, 1122 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 21:00:44,295 INFO L231 Difference]: Finished difference. Result has 538 places, 541 transitions, 1092 flow [2022-11-18 21:00:44,296 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=596, PETRI_DIFFERENCE_MINUEND_FLOW=1088, PETRI_DIFFERENCE_MINUEND_PLACES=536, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=541, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=539, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1092, PETRI_PLACES=538, PETRI_TRANSITIONS=541} [2022-11-18 21:00:44,298 INFO L288 CegarLoopForPetriNet]: 548 programPoint places, -10 predicate places. [2022-11-18 21:00:44,298 INFO L495 AbstractCegarLoop]: Abstraction has has 538 places, 541 transitions, 1092 flow [2022-11-18 21:00:44,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 3 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:44,300 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:00:44,301 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] [2022-11-18 21:00:44,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 21:00:44,302 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2022-11-18 21:00:44,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:44,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1441100117, now seen corresponding path program 1 times [2022-11-18 21:00:44,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:44,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897238302] [2022-11-18 21:00:44,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:44,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:44,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:45,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:45,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:00:45,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897238302] [2022-11-18 21:00:45,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897238302] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:00:45,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:00:45,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 21:00:45,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538744633] [2022-11-18 21:00:45,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:00:45,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:00:45,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:00:45,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:00:45,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:00:45,047 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 462 out of 596 [2022-11-18 21:00:45,051 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 538 places, 541 transitions, 1092 flow. Second operand has 6 states, 6 states have (on average 463.8333333333333) internal successors, (2783), 6 states have internal predecessors, (2783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:45,051 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:00:45,051 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 462 of 596 [2022-11-18 21:00:45,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:01:23,856 INFO L130 PetriNetUnfolder]: 49023/197967 cut-off events. [2022-11-18 21:01:23,856 INFO L131 PetriNetUnfolder]: For 349/615 co-relation queries the response was YES. [2022-11-18 21:01:25,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 261965 conditions, 197967 events. 49023/197967 cut-off events. For 349/615 co-relation queries the response was YES. Maximal size of possible extension queue 3431. Compared 3244519 event pairs, 42984 based on Foata normal form. 0/164792 useless extension candidates. Maximal degree in co-relation 261961. Up to 63795 conditions per place. [2022-11-18 21:01:26,282 INFO L137 encePairwiseOnDemand]: 578/596 looper letters, 93 selfloop transitions, 15 changer transitions 0/538 dead transitions. [2022-11-18 21:01:26,282 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 540 places, 538 transitions, 1302 flow [2022-11-18 21:01:26,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:01:26,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 21:01:26,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2883 transitions. [2022-11-18 21:01:26,295 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8062080536912751 [2022-11-18 21:01:26,295 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2883 transitions. [2022-11-18 21:01:26,295 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2883 transitions. [2022-11-18 21:01:26,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:01:26,298 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2883 transitions. [2022-11-18 21:01:26,308 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 480.5) internal successors, (2883), 6 states have internal predecessors, (2883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:26,317 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 596.0) internal successors, (4172), 7 states have internal predecessors, (4172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:26,321 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 596.0) internal successors, (4172), 7 states have internal predecessors, (4172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:26,321 INFO L175 Difference]: Start difference. First operand has 538 places, 541 transitions, 1092 flow. Second operand 6 states and 2883 transitions. [2022-11-18 21:01:26,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 540 places, 538 transitions, 1302 flow [2022-11-18 21:01:26,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 538 places, 538 transitions, 1298 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:01:26,335 INFO L231 Difference]: Finished difference. Result has 538 places, 538 transitions, 1112 flow [2022-11-18 21:01:26,336 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=596, PETRI_DIFFERENCE_MINUEND_FLOW=1082, PETRI_DIFFERENCE_MINUEND_PLACES=533, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=538, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=523, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1112, PETRI_PLACES=538, PETRI_TRANSITIONS=538} [2022-11-18 21:01:26,337 INFO L288 CegarLoopForPetriNet]: 548 programPoint places, -10 predicate places. [2022-11-18 21:01:26,338 INFO L495 AbstractCegarLoop]: Abstraction has has 538 places, 538 transitions, 1112 flow [2022-11-18 21:01:26,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 463.8333333333333) internal successors, (2783), 6 states have internal predecessors, (2783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:26,340 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:01:26,340 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] [2022-11-18 21:01:26,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 21:01:26,341 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2022-11-18 21:01:26,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:26,342 INFO L85 PathProgramCache]: Analyzing trace with hash -2111405063, now seen corresponding path program 1 times [2022-11-18 21:01:26,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:01:26,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328374748] [2022-11-18 21:01:26,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:01:26,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:01:26,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:01:26,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:26,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:01:26,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328374748] [2022-11-18 21:01:26,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328374748] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:26,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:26,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:01:26,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069393086] [2022-11-18 21:01:26,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:26,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:01:26,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:01:26,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:01:26,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:01:26,427 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 555 out of 596 [2022-11-18 21:01:26,430 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 538 places, 538 transitions, 1112 flow. Second operand has 3 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 3 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:26,430 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:01:26,431 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 555 of 596 [2022-11-18 21:01:26,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:01:26,868 INFO L130 PetriNetUnfolder]: 86/1882 cut-off events. [2022-11-18 21:01:26,868 INFO L131 PetriNetUnfolder]: For 11/16 co-relation queries the response was YES. [2022-11-18 21:01:26,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2026 conditions, 1882 events. 86/1882 cut-off events. For 11/16 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 12306 event pairs, 39 based on Foata normal form. 0/1600 useless extension candidates. Maximal degree in co-relation 2022. Up to 103 conditions per place. [2022-11-18 21:01:26,905 INFO L137 encePairwiseOnDemand]: 593/596 looper letters, 15 selfloop transitions, 2 changer transitions 0/537 dead transitions. [2022-11-18 21:01:26,905 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 539 places, 537 transitions, 1144 flow [2022-11-18 21:01:26,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:01:26,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:01:26,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1683 transitions. [2022-11-18 21:01:26,910 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9412751677852349 [2022-11-18 21:01:26,910 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1683 transitions. [2022-11-18 21:01:26,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1683 transitions. [2022-11-18 21:01:26,912 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:01:26,912 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1683 transitions. [2022-11-18 21:01:26,917 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 561.0) internal successors, (1683), 3 states have internal predecessors, (1683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:26,922 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:26,924 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:26,924 INFO L175 Difference]: Start difference. First operand has 538 places, 538 transitions, 1112 flow. Second operand 3 states and 1683 transitions. [2022-11-18 21:01:26,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 539 places, 537 transitions, 1144 flow [2022-11-18 21:01:26,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 534 places, 537 transitions, 1114 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 21:01:26,936 INFO L231 Difference]: Finished difference. Result has 534 places, 537 transitions, 1084 flow [2022-11-18 21:01:26,937 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=596, PETRI_DIFFERENCE_MINUEND_FLOW=1080, PETRI_DIFFERENCE_MINUEND_PLACES=532, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=537, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=535, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1084, PETRI_PLACES=534, PETRI_TRANSITIONS=537} [2022-11-18 21:01:26,938 INFO L288 CegarLoopForPetriNet]: 548 programPoint places, -14 predicate places. [2022-11-18 21:01:26,938 INFO L495 AbstractCegarLoop]: Abstraction has has 534 places, 537 transitions, 1084 flow [2022-11-18 21:01:26,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 3 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:26,940 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:01:26,940 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] [2022-11-18 21:01:26,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 21:01:26,941 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2022-11-18 21:01:26,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:26,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1707271784, now seen corresponding path program 1 times [2022-11-18 21:01:26,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:01:26,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985357849] [2022-11-18 21:01:26,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:01:26,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:01:26,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:01:27,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:27,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:01:27,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985357849] [2022-11-18 21:01:27,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985357849] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:27,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:27,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:01:27,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374946968] [2022-11-18 21:01:27,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:27,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:01:27,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:01:27,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:01:27,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:01:27,024 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 555 out of 596 [2022-11-18 21:01:27,027 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 534 places, 537 transitions, 1084 flow. Second operand has 3 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 3 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:27,027 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:01:27,027 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 555 of 596 [2022-11-18 21:01:27,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:01:27,626 INFO L130 PetriNetUnfolder]: 82/1587 cut-off events. [2022-11-18 21:01:27,626 INFO L131 PetriNetUnfolder]: For 26/28 co-relation queries the response was YES. [2022-11-18 21:01:27,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1705 conditions, 1587 events. 82/1587 cut-off events. For 26/28 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 8747 event pairs, 39 based on Foata normal form. 0/1357 useless extension candidates. Maximal degree in co-relation 1701. Up to 105 conditions per place. [2022-11-18 21:01:27,650 INFO L137 encePairwiseOnDemand]: 593/596 looper letters, 15 selfloop transitions, 2 changer transitions 0/536 dead transitions. [2022-11-18 21:01:27,651 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 535 places, 536 transitions, 1116 flow [2022-11-18 21:01:27,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:01:27,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:01:27,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1683 transitions. [2022-11-18 21:01:27,656 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9412751677852349 [2022-11-18 21:01:27,656 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1683 transitions. [2022-11-18 21:01:27,656 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1683 transitions. [2022-11-18 21:01:27,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:01:27,658 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1683 transitions. [2022-11-18 21:01:27,662 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 561.0) internal successors, (1683), 3 states have internal predecessors, (1683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:27,667 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:27,669 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:27,669 INFO L175 Difference]: Start difference. First operand has 534 places, 537 transitions, 1084 flow. Second operand 3 states and 1683 transitions. [2022-11-18 21:01:27,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 535 places, 536 transitions, 1116 flow [2022-11-18 21:01:27,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 533 places, 536 transitions, 1112 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:01:27,679 INFO L231 Difference]: Finished difference. Result has 533 places, 536 transitions, 1082 flow [2022-11-18 21:01:27,680 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=596, PETRI_DIFFERENCE_MINUEND_FLOW=1078, PETRI_DIFFERENCE_MINUEND_PLACES=531, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=536, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=534, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1082, PETRI_PLACES=533, PETRI_TRANSITIONS=536} [2022-11-18 21:01:27,681 INFO L288 CegarLoopForPetriNet]: 548 programPoint places, -15 predicate places. [2022-11-18 21:01:27,681 INFO L495 AbstractCegarLoop]: Abstraction has has 533 places, 536 transitions, 1082 flow [2022-11-18 21:01:27,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 3 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:27,683 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:01:27,683 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] [2022-11-18 21:01:27,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 21:01:27,683 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2022-11-18 21:01:27,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:27,684 INFO L85 PathProgramCache]: Analyzing trace with hash -809913820, now seen corresponding path program 1 times [2022-11-18 21:01:27,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:01:27,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428376962] [2022-11-18 21:01:27,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:01:27,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:01:27,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:01:27,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:27,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:01:27,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428376962] [2022-11-18 21:01:27,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428376962] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:27,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:27,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:01:27,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433606638] [2022-11-18 21:01:27,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:27,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:01:27,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:01:27,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:01:27,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:01:27,755 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 555 out of 596 [2022-11-18 21:01:27,757 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 533 places, 536 transitions, 1082 flow. Second operand has 3 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 3 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:27,757 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:01:27,758 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 555 of 596 [2022-11-18 21:01:27,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:01:28,086 INFO L130 PetriNetUnfolder]: 45/1249 cut-off events. [2022-11-18 21:01:28,087 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-11-18 21:01:28,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1323 conditions, 1249 events. 45/1249 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 6122 event pairs, 21 based on Foata normal form. 0/1063 useless extension candidates. Maximal degree in co-relation 1319. Up to 58 conditions per place. [2022-11-18 21:01:28,113 INFO L137 encePairwiseOnDemand]: 593/596 looper letters, 15 selfloop transitions, 2 changer transitions 0/535 dead transitions. [2022-11-18 21:01:28,113 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 534 places, 535 transitions, 1114 flow [2022-11-18 21:01:28,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:01:28,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:01:28,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1683 transitions. [2022-11-18 21:01:28,117 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9412751677852349 [2022-11-18 21:01:28,117 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1683 transitions. [2022-11-18 21:01:28,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1683 transitions. [2022-11-18 21:01:28,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:01:28,119 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1683 transitions. [2022-11-18 21:01:28,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 561.0) internal successors, (1683), 3 states have internal predecessors, (1683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:28,127 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:28,129 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:28,129 INFO L175 Difference]: Start difference. First operand has 533 places, 536 transitions, 1082 flow. Second operand 3 states and 1683 transitions. [2022-11-18 21:01:28,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 534 places, 535 transitions, 1114 flow [2022-11-18 21:01:28,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 532 places, 535 transitions, 1110 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:01:28,139 INFO L231 Difference]: Finished difference. Result has 532 places, 535 transitions, 1080 flow [2022-11-18 21:01:28,140 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=596, PETRI_DIFFERENCE_MINUEND_FLOW=1076, PETRI_DIFFERENCE_MINUEND_PLACES=530, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=535, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=533, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1080, PETRI_PLACES=532, PETRI_TRANSITIONS=535} [2022-11-18 21:01:28,141 INFO L288 CegarLoopForPetriNet]: 548 programPoint places, -16 predicate places. [2022-11-18 21:01:28,141 INFO L495 AbstractCegarLoop]: Abstraction has has 532 places, 535 transitions, 1080 flow [2022-11-18 21:01:28,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 3 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:28,143 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:01:28,143 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] [2022-11-18 21:01:28,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 21:01:28,143 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2022-11-18 21:01:28,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:28,144 INFO L85 PathProgramCache]: Analyzing trace with hash -666387082, now seen corresponding path program 1 times [2022-11-18 21:01:28,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:01:28,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305524352] [2022-11-18 21:01:28,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:01:28,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:01:28,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:01:28,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:28,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:01:28,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305524352] [2022-11-18 21:01:28,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305524352] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:28,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:28,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:01:28,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988906100] [2022-11-18 21:01:28,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:28,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:01:28,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:01:28,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:01:28,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:01:28,202 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 555 out of 596 [2022-11-18 21:01:28,205 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 532 places, 535 transitions, 1080 flow. Second operand has 3 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 3 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:28,205 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:01:28,205 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 555 of 596 [2022-11-18 21:01:28,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:01:28,616 INFO L130 PetriNetUnfolder]: 73/1716 cut-off events. [2022-11-18 21:01:28,616 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-18 21:01:28,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1829 conditions, 1716 events. 73/1716 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 11690 event pairs, 39 based on Foata normal form. 0/1455 useless extension candidates. Maximal degree in co-relation 1825. Up to 85 conditions per place. [2022-11-18 21:01:28,641 INFO L137 encePairwiseOnDemand]: 593/596 looper letters, 15 selfloop transitions, 2 changer transitions 0/534 dead transitions. [2022-11-18 21:01:28,641 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 533 places, 534 transitions, 1112 flow [2022-11-18 21:01:28,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:01:28,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:01:28,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1683 transitions. [2022-11-18 21:01:28,646 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9412751677852349 [2022-11-18 21:01:28,647 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1683 transitions. [2022-11-18 21:01:28,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1683 transitions. [2022-11-18 21:01:28,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:01:28,648 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1683 transitions. [2022-11-18 21:01:28,653 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 561.0) internal successors, (1683), 3 states have internal predecessors, (1683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:28,657 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:28,658 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:28,658 INFO L175 Difference]: Start difference. First operand has 532 places, 535 transitions, 1080 flow. Second operand 3 states and 1683 transitions. [2022-11-18 21:01:28,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 533 places, 534 transitions, 1112 flow [2022-11-18 21:01:28,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 531 places, 534 transitions, 1108 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:01:28,669 INFO L231 Difference]: Finished difference. Result has 531 places, 534 transitions, 1078 flow [2022-11-18 21:01:28,670 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=596, PETRI_DIFFERENCE_MINUEND_FLOW=1074, PETRI_DIFFERENCE_MINUEND_PLACES=529, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=534, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=532, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1078, PETRI_PLACES=531, PETRI_TRANSITIONS=534} [2022-11-18 21:01:28,670 INFO L288 CegarLoopForPetriNet]: 548 programPoint places, -17 predicate places. [2022-11-18 21:01:28,671 INFO L495 AbstractCegarLoop]: Abstraction has has 531 places, 534 transitions, 1078 flow [2022-11-18 21:01:28,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 3 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:28,672 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:01:28,673 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] [2022-11-18 21:01:28,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 21:01:28,673 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2022-11-18 21:01:28,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:28,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1548445414, now seen corresponding path program 1 times [2022-11-18 21:01:28,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:01:28,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135927352] [2022-11-18 21:01:28,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:01:28,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:01:28,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:01:28,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:28,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:01:28,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135927352] [2022-11-18 21:01:28,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135927352] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:28,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:28,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:01:28,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946548483] [2022-11-18 21:01:28,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:28,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:01:28,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:01:28,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:01:28,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:01:28,747 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 555 out of 596 [2022-11-18 21:01:28,749 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 531 places, 534 transitions, 1078 flow. Second operand has 3 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 3 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:28,750 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:01:28,750 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 555 of 596 [2022-11-18 21:01:28,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:01:29,146 INFO L130 PetriNetUnfolder]: 71/1575 cut-off events. [2022-11-18 21:01:29,147 INFO L131 PetriNetUnfolder]: For 21/29 co-relation queries the response was YES. [2022-11-18 21:01:29,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1673 conditions, 1575 events. 71/1575 cut-off events. For 21/29 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 9322 event pairs, 39 based on Foata normal form. 0/1344 useless extension candidates. Maximal degree in co-relation 1669. Up to 85 conditions per place. [2022-11-18 21:01:29,182 INFO L137 encePairwiseOnDemand]: 593/596 looper letters, 15 selfloop transitions, 2 changer transitions 0/533 dead transitions. [2022-11-18 21:01:29,182 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 532 places, 533 transitions, 1110 flow [2022-11-18 21:01:29,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:01:29,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:01:29,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1683 transitions. [2022-11-18 21:01:29,188 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9412751677852349 [2022-11-18 21:01:29,188 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1683 transitions. [2022-11-18 21:01:29,188 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1683 transitions. [2022-11-18 21:01:29,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:01:29,190 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1683 transitions. [2022-11-18 21:01:29,194 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 561.0) internal successors, (1683), 3 states have internal predecessors, (1683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:29,198 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:29,199 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:29,200 INFO L175 Difference]: Start difference. First operand has 531 places, 534 transitions, 1078 flow. Second operand 3 states and 1683 transitions. [2022-11-18 21:01:29,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 532 places, 533 transitions, 1110 flow [2022-11-18 21:01:29,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 530 places, 533 transitions, 1106 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:01:29,211 INFO L231 Difference]: Finished difference. Result has 530 places, 533 transitions, 1076 flow [2022-11-18 21:01:29,213 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=596, PETRI_DIFFERENCE_MINUEND_FLOW=1072, PETRI_DIFFERENCE_MINUEND_PLACES=528, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=533, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=531, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1076, PETRI_PLACES=530, PETRI_TRANSITIONS=533} [2022-11-18 21:01:29,217 INFO L288 CegarLoopForPetriNet]: 548 programPoint places, -18 predicate places. [2022-11-18 21:01:29,217 INFO L495 AbstractCegarLoop]: Abstraction has has 530 places, 533 transitions, 1076 flow [2022-11-18 21:01:29,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 3 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:29,219 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:01:29,219 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] [2022-11-18 21:01:29,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 21:01:29,219 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2022-11-18 21:01:29,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:29,225 INFO L85 PathProgramCache]: Analyzing trace with hash 272084745, now seen corresponding path program 1 times [2022-11-18 21:01:29,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:01:29,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213548979] [2022-11-18 21:01:29,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:01:29,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:01:29,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:01:29,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:29,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:01:29,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213548979] [2022-11-18 21:01:29,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213548979] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:29,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:29,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:01:29,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271750310] [2022-11-18 21:01:29,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:29,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:01:29,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:01:29,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:01:29,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:01:29,321 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 558 out of 596 [2022-11-18 21:01:29,324 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 530 places, 533 transitions, 1076 flow. Second operand has 3 states, 3 states have (on average 559.6666666666666) internal successors, (1679), 3 states have internal predecessors, (1679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:29,324 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:01:29,324 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 558 of 596 [2022-11-18 21:01:29,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:01:29,692 INFO L130 PetriNetUnfolder]: 34/1131 cut-off events. [2022-11-18 21:01:29,692 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-18 21:01:29,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1180 conditions, 1131 events. 34/1131 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 5064 event pairs, 6 based on Foata normal form. 0/980 useless extension candidates. Maximal degree in co-relation 1176. Up to 31 conditions per place. [2022-11-18 21:01:29,710 INFO L137 encePairwiseOnDemand]: 592/596 looper letters, 14 selfloop transitions, 2 changer transitions 0/535 dead transitions. [2022-11-18 21:01:29,711 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 530 places, 535 transitions, 1114 flow [2022-11-18 21:01:29,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:01:29,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:01:29,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1692 transitions. [2022-11-18 21:01:29,715 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9463087248322147 [2022-11-18 21:01:29,716 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1692 transitions. [2022-11-18 21:01:29,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1692 transitions. [2022-11-18 21:01:29,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:01:29,717 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1692 transitions. [2022-11-18 21:01:29,721 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 564.0) internal successors, (1692), 3 states have internal predecessors, (1692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:29,725 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:29,726 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:29,726 INFO L175 Difference]: Start difference. First operand has 530 places, 533 transitions, 1076 flow. Second operand 3 states and 1692 transitions. [2022-11-18 21:01:29,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 530 places, 535 transitions, 1114 flow [2022-11-18 21:01:29,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 528 places, 535 transitions, 1110 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:01:29,736 INFO L231 Difference]: Finished difference. Result has 529 places, 533 transitions, 1082 flow [2022-11-18 21:01:29,737 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=596, PETRI_DIFFERENCE_MINUEND_FLOW=1068, PETRI_DIFFERENCE_MINUEND_PLACES=526, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=531, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=529, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1082, PETRI_PLACES=529, PETRI_TRANSITIONS=533} [2022-11-18 21:01:29,738 INFO L288 CegarLoopForPetriNet]: 548 programPoint places, -19 predicate places. [2022-11-18 21:01:29,738 INFO L495 AbstractCegarLoop]: Abstraction has has 529 places, 533 transitions, 1082 flow [2022-11-18 21:01:29,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 559.6666666666666) internal successors, (1679), 3 states have internal predecessors, (1679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:29,739 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:01:29,740 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] [2022-11-18 21:01:29,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 21:01:29,740 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2022-11-18 21:01:29,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:29,741 INFO L85 PathProgramCache]: Analyzing trace with hash 53694015, now seen corresponding path program 1 times [2022-11-18 21:01:29,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:01:29,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659096672] [2022-11-18 21:01:29,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:01:29,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:01:29,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:01:29,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:29,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:01:29,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659096672] [2022-11-18 21:01:29,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659096672] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:29,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:29,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:01:29,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446564749] [2022-11-18 21:01:29,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:29,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:01:29,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:01:29,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:01:29,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:01:29,803 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 558 out of 596 [2022-11-18 21:01:29,805 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 529 places, 533 transitions, 1082 flow. Second operand has 3 states, 3 states have (on average 560.0) internal successors, (1680), 3 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:29,805 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:01:29,805 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 558 of 596 [2022-11-18 21:01:29,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:01:30,195 INFO L130 PetriNetUnfolder]: 56/1701 cut-off events. [2022-11-18 21:01:30,195 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-18 21:01:30,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1777 conditions, 1701 events. 56/1701 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 11678 event pairs, 11 based on Foata normal form. 0/1473 useless extension candidates. Maximal degree in co-relation 1773. Up to 43 conditions per place. [2022-11-18 21:01:30,224 INFO L137 encePairwiseOnDemand]: 592/596 looper letters, 14 selfloop transitions, 2 changer transitions 0/535 dead transitions. [2022-11-18 21:01:30,225 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 529 places, 535 transitions, 1120 flow [2022-11-18 21:01:30,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:01:30,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:01:30,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1692 transitions. [2022-11-18 21:01:30,229 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9463087248322147 [2022-11-18 21:01:30,229 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1692 transitions. [2022-11-18 21:01:30,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1692 transitions. [2022-11-18 21:01:30,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:01:30,230 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1692 transitions. [2022-11-18 21:01:30,234 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 564.0) internal successors, (1692), 3 states have internal predecessors, (1692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:30,237 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:30,238 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:30,238 INFO L175 Difference]: Start difference. First operand has 529 places, 533 transitions, 1082 flow. Second operand 3 states and 1692 transitions. [2022-11-18 21:01:30,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 529 places, 535 transitions, 1120 flow [2022-11-18 21:01:30,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 529 places, 535 transitions, 1120 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 21:01:30,248 INFO L231 Difference]: Finished difference. Result has 530 places, 533 transitions, 1092 flow [2022-11-18 21:01:30,249 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=596, PETRI_DIFFERENCE_MINUEND_FLOW=1078, PETRI_DIFFERENCE_MINUEND_PLACES=527, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=531, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=529, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1092, PETRI_PLACES=530, PETRI_TRANSITIONS=533} [2022-11-18 21:01:30,249 INFO L288 CegarLoopForPetriNet]: 548 programPoint places, -18 predicate places. [2022-11-18 21:01:30,249 INFO L495 AbstractCegarLoop]: Abstraction has has 530 places, 533 transitions, 1092 flow [2022-11-18 21:01:30,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 560.0) internal successors, (1680), 3 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:30,250 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:01:30,250 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:01:30,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 21:01:30,251 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2022-11-18 21:01:30,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:30,251 INFO L85 PathProgramCache]: Analyzing trace with hash 2003622484, now seen corresponding path program 1 times [2022-11-18 21:01:30,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:01:30,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407286775] [2022-11-18 21:01:30,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:01:30,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:01:30,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:01:30,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:30,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:01:30,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407286775] [2022-11-18 21:01:30,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407286775] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:30,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:30,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:01:30,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200235769] [2022-11-18 21:01:30,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:30,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:01:30,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:01:30,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:01:30,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:01:30,313 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 547 out of 596 [2022-11-18 21:01:30,315 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 530 places, 533 transitions, 1092 flow. Second operand has 3 states, 3 states have (on average 548.3333333333334) internal successors, (1645), 3 states have internal predecessors, (1645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:30,315 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:01:30,315 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 547 of 596 [2022-11-18 21:01:30,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:01:30,618 INFO L130 PetriNetUnfolder]: 75/1241 cut-off events. [2022-11-18 21:01:30,618 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-18 21:01:30,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1450 conditions, 1241 events. 75/1241 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 7154 event pairs, 42 based on Foata normal form. 0/1088 useless extension candidates. Maximal degree in co-relation 1445. Up to 123 conditions per place. [2022-11-18 21:01:30,644 INFO L137 encePairwiseOnDemand]: 593/596 looper letters, 25 selfloop transitions, 2 changer transitions 0/534 dead transitions. [2022-11-18 21:01:30,644 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 531 places, 534 transitions, 1150 flow [2022-11-18 21:01:30,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:01:30,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:01:30,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1669 transitions. [2022-11-18 21:01:30,648 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9334451901565995 [2022-11-18 21:01:30,649 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1669 transitions. [2022-11-18 21:01:30,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1669 transitions. [2022-11-18 21:01:30,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:01:30,650 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1669 transitions. [2022-11-18 21:01:30,653 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 3 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:30,657 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:30,657 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:30,658 INFO L175 Difference]: Start difference. First operand has 530 places, 533 transitions, 1092 flow. Second operand 3 states and 1669 transitions. [2022-11-18 21:01:30,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 531 places, 534 transitions, 1150 flow [2022-11-18 21:01:30,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 531 places, 534 transitions, 1150 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 21:01:30,672 INFO L231 Difference]: Finished difference. Result has 531 places, 532 transitions, 1094 flow [2022-11-18 21:01:30,673 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=596, PETRI_DIFFERENCE_MINUEND_FLOW=1090, PETRI_DIFFERENCE_MINUEND_PLACES=529, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=532, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=530, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1094, PETRI_PLACES=531, PETRI_TRANSITIONS=532} [2022-11-18 21:01:30,674 INFO L288 CegarLoopForPetriNet]: 548 programPoint places, -17 predicate places. [2022-11-18 21:01:30,674 INFO L495 AbstractCegarLoop]: Abstraction has has 531 places, 532 transitions, 1094 flow [2022-11-18 21:01:30,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 548.3333333333334) internal successors, (1645), 3 states have internal predecessors, (1645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:30,675 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:01:30,675 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] [2022-11-18 21:01:30,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 21:01:30,675 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2022-11-18 21:01:30,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:30,676 INFO L85 PathProgramCache]: Analyzing trace with hash -748891803, now seen corresponding path program 1 times [2022-11-18 21:01:30,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:01:30,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526075216] [2022-11-18 21:01:30,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:01:30,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:01:30,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:01:30,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:30,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:01:30,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526075216] [2022-11-18 21:01:30,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526075216] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:30,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:30,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:01:30,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168385327] [2022-11-18 21:01:30,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:30,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:01:30,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:01:30,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:01:30,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:01:30,738 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 558 out of 596 [2022-11-18 21:01:30,740 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 531 places, 532 transitions, 1094 flow. Second operand has 3 states, 3 states have (on average 560.0) internal successors, (1680), 3 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:30,740 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:01:30,740 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 558 of 596 [2022-11-18 21:01:30,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:01:31,161 INFO L130 PetriNetUnfolder]: 68/1911 cut-off events. [2022-11-18 21:01:31,162 INFO L131 PetriNetUnfolder]: For 16/21 co-relation queries the response was YES. [2022-11-18 21:01:31,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2001 conditions, 1911 events. 68/1911 cut-off events. For 16/21 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 12632 event pairs, 15 based on Foata normal form. 0/1649 useless extension candidates. Maximal degree in co-relation 1995. Up to 56 conditions per place. [2022-11-18 21:01:31,198 INFO L137 encePairwiseOnDemand]: 592/596 looper letters, 14 selfloop transitions, 2 changer transitions 0/534 dead transitions. [2022-11-18 21:01:31,198 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 531 places, 534 transitions, 1132 flow [2022-11-18 21:01:31,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:01:31,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:01:31,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1692 transitions. [2022-11-18 21:01:31,202 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9463087248322147 [2022-11-18 21:01:31,202 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1692 transitions. [2022-11-18 21:01:31,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1692 transitions. [2022-11-18 21:01:31,203 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:01:31,203 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1692 transitions. [2022-11-18 21:01:31,206 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 564.0) internal successors, (1692), 3 states have internal predecessors, (1692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:31,210 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:31,210 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:31,211 INFO L175 Difference]: Start difference. First operand has 531 places, 532 transitions, 1094 flow. Second operand 3 states and 1692 transitions. [2022-11-18 21:01:31,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 531 places, 534 transitions, 1132 flow [2022-11-18 21:01:31,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 529 places, 534 transitions, 1128 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:01:31,221 INFO L231 Difference]: Finished difference. Result has 530 places, 532 transitions, 1100 flow [2022-11-18 21:01:31,222 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=596, PETRI_DIFFERENCE_MINUEND_FLOW=1086, PETRI_DIFFERENCE_MINUEND_PLACES=527, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=530, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=528, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1100, PETRI_PLACES=530, PETRI_TRANSITIONS=532} [2022-11-18 21:01:31,222 INFO L288 CegarLoopForPetriNet]: 548 programPoint places, -18 predicate places. [2022-11-18 21:01:31,223 INFO L495 AbstractCegarLoop]: Abstraction has has 530 places, 532 transitions, 1100 flow [2022-11-18 21:01:31,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 560.0) internal successors, (1680), 3 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:31,224 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:01:31,224 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:01:31,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 21:01:31,224 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2022-11-18 21:01:31,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:31,225 INFO L85 PathProgramCache]: Analyzing trace with hash -2011955972, now seen corresponding path program 1 times [2022-11-18 21:01:31,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:01:31,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160989059] [2022-11-18 21:01:31,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:01:31,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:01:31,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:01:31,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:31,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:01:31,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160989059] [2022-11-18 21:01:31,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160989059] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:31,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:31,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 21:01:31,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36897857] [2022-11-18 21:01:31,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:31,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 21:01:31,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:01:31,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 21:01:31,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:01:31,380 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 513 out of 596 [2022-11-18 21:01:31,383 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 530 places, 532 transitions, 1100 flow. Second operand has 5 states, 5 states have (on average 518.4) internal successors, (2592), 5 states have internal predecessors, (2592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:31,383 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:01:31,383 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 513 of 596 [2022-11-18 21:01:31,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:01:31,807 INFO L130 PetriNetUnfolder]: 22/938 cut-off events. [2022-11-18 21:01:31,807 INFO L131 PetriNetUnfolder]: For 4/7 co-relation queries the response was YES. [2022-11-18 21:01:31,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1054 conditions, 938 events. 22/938 cut-off events. For 4/7 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3920 event pairs, 0 based on Foata normal form. 0/835 useless extension candidates. Maximal degree in co-relation 1048. Up to 54 conditions per place. [2022-11-18 21:01:31,829 INFO L137 encePairwiseOnDemand]: 581/596 looper letters, 72 selfloop transitions, 12 changer transitions 0/559 dead transitions. [2022-11-18 21:01:31,830 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 534 places, 559 transitions, 1322 flow [2022-11-18 21:01:31,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 21:01:31,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 21:01:31,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2652 transitions. [2022-11-18 21:01:31,837 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8899328859060402 [2022-11-18 21:01:31,837 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2652 transitions. [2022-11-18 21:01:31,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2652 transitions. [2022-11-18 21:01:31,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:01:31,839 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2652 transitions. [2022-11-18 21:01:31,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 530.4) internal successors, (2652), 5 states have internal predecessors, (2652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:31,852 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 596.0) internal successors, (3576), 6 states have internal predecessors, (3576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:31,853 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 596.0) internal successors, (3576), 6 states have internal predecessors, (3576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:31,854 INFO L175 Difference]: Start difference. First operand has 530 places, 532 transitions, 1100 flow. Second operand 5 states and 2652 transitions. [2022-11-18 21:01:31,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 534 places, 559 transitions, 1322 flow [2022-11-18 21:01:31,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 534 places, 559 transitions, 1322 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 21:01:31,865 INFO L231 Difference]: Finished difference. Result has 535 places, 535 transitions, 1148 flow [2022-11-18 21:01:31,867 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=596, PETRI_DIFFERENCE_MINUEND_FLOW=1100, PETRI_DIFFERENCE_MINUEND_PLACES=530, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=532, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=520, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1148, PETRI_PLACES=535, PETRI_TRANSITIONS=535} [2022-11-18 21:01:31,868 INFO L288 CegarLoopForPetriNet]: 548 programPoint places, -13 predicate places. [2022-11-18 21:01:31,868 INFO L495 AbstractCegarLoop]: Abstraction has has 535 places, 535 transitions, 1148 flow [2022-11-18 21:01:31,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 518.4) internal successors, (2592), 5 states have internal predecessors, (2592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:31,869 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:01:31,870 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:01:31,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 21:01:31,870 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2022-11-18 21:01:31,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:31,871 INFO L85 PathProgramCache]: Analyzing trace with hash 161874918, now seen corresponding path program 1 times [2022-11-18 21:01:31,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:01:31,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785213326] [2022-11-18 21:01:31,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:01:31,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:01:31,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:01:32,256 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-18 21:01:32,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:01:32,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785213326] [2022-11-18 21:01:32,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785213326] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:01:32,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120874747] [2022-11-18 21:01:32,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:01:32,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:01:32,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993a0c41-c8cd-464d-8305-360c545911d1/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:01:32,263 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993a0c41-c8cd-464d-8305-360c545911d1/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:01:32,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993a0c41-c8cd-464d-8305-360c545911d1/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 21:01:32,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:01:32,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 21:01:32,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:01:32,677 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-18 21:01:32,677 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 21:01:32,802 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-18 21:01:32,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120874747] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 21:01:32,803 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 21:01:32,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-11-18 21:01:32,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221774948] [2022-11-18 21:01:32,804 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 21:01:32,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-18 21:01:32,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:01:32,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-18 21:01:32,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-11-18 21:01:32,814 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 510 out of 596 [2022-11-18 21:01:32,822 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 535 places, 535 transitions, 1148 flow. Second operand has 15 states, 15 states have (on average 515.8) internal successors, (7737), 15 states have internal predecessors, (7737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:32,822 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:01:32,822 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 510 of 596 [2022-11-18 21:01:32,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:01:33,534 INFO L130 PetriNetUnfolder]: 22/986 cut-off events. [2022-11-18 21:01:33,534 INFO L131 PetriNetUnfolder]: For 16/19 co-relation queries the response was YES. [2022-11-18 21:01:33,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1167 conditions, 986 events. 22/986 cut-off events. For 16/19 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3850 event pairs, 0 based on Foata normal form. 6/892 useless extension candidates. Maximal degree in co-relation 1159. Up to 30 conditions per place. [2022-11-18 21:01:33,555 INFO L137 encePairwiseOnDemand]: 572/596 looper letters, 90 selfloop transitions, 33 changer transitions 0/595 dead transitions. [2022-11-18 21:01:33,556 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 545 places, 595 transitions, 1520 flow [2022-11-18 21:01:33,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 21:01:33,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-18 21:01:33,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 5739 transitions. [2022-11-18 21:01:33,570 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8753813300793166 [2022-11-18 21:01:33,570 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 5739 transitions. [2022-11-18 21:01:33,570 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 5739 transitions. [2022-11-18 21:01:33,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:01:33,574 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 5739 transitions. [2022-11-18 21:01:33,587 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 521.7272727272727) internal successors, (5739), 11 states have internal predecessors, (5739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:33,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 596.0) internal successors, (7152), 12 states have internal predecessors, (7152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:33,603 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 596.0) internal successors, (7152), 12 states have internal predecessors, (7152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:33,603 INFO L175 Difference]: Start difference. First operand has 535 places, 535 transitions, 1148 flow. Second operand 11 states and 5739 transitions. [2022-11-18 21:01:33,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 545 places, 595 transitions, 1520 flow [2022-11-18 21:01:33,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 542 places, 595 transitions, 1502 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 21:01:33,617 INFO L231 Difference]: Finished difference. Result has 545 places, 553 transitions, 1297 flow [2022-11-18 21:01:33,619 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=596, PETRI_DIFFERENCE_MINUEND_FLOW=1130, PETRI_DIFFERENCE_MINUEND_PLACES=532, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=535, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=511, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1297, PETRI_PLACES=545, PETRI_TRANSITIONS=553} [2022-11-18 21:01:33,619 INFO L288 CegarLoopForPetriNet]: 548 programPoint places, -3 predicate places. [2022-11-18 21:01:33,620 INFO L495 AbstractCegarLoop]: Abstraction has has 545 places, 553 transitions, 1297 flow [2022-11-18 21:01:33,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 515.8) internal successors, (7737), 15 states have internal predecessors, (7737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:33,623 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:01:33,624 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:01:33,638 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993a0c41-c8cd-464d-8305-360c545911d1/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 21:01:33,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993a0c41-c8cd-464d-8305-360c545911d1/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-18 21:01:33,831 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2022-11-18 21:01:33,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:33,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1487225530, now seen corresponding path program 2 times [2022-11-18 21:01:33,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:01:33,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625504655] [2022-11-18 21:01:33,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:01:33,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:01:33,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:01:34,393 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-11-18 21:01:34,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:01:34,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625504655] [2022-11-18 21:01:34,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625504655] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:01:34,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2009342775] [2022-11-18 21:01:34,394 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 21:01:34,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:01:34,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993a0c41-c8cd-464d-8305-360c545911d1/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:01:34,395 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993a0c41-c8cd-464d-8305-360c545911d1/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:01:34,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993a0c41-c8cd-464d-8305-360c545911d1/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 21:01:34,638 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 21:01:34,638 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:01:34,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-18 21:01:34,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:01:35,185 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-18 21:01:35,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 21:01:35,218 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-18 21:01:35,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 21:01:35,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 21:01:35,260 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 21:01:35,261 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-18 21:01:35,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 21:01:35,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 21:01:35,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 21:01:35,309 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 21:01:35,311 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2022-11-18 21:01:35,353 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-11-18 21:01:35,353 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:01:35,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2009342775] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:35,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 21:01:35,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 16 [2022-11-18 21:01:35,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838733310] [2022-11-18 21:01:35,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:35,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 21:01:35,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:01:35,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 21:01:35,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2022-11-18 21:01:35,364 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 489 out of 596 [2022-11-18 21:01:35,367 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 545 places, 553 transitions, 1297 flow. Second operand has 7 states, 7 states have (on average 492.85714285714283) internal successors, (3450), 7 states have internal predecessors, (3450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:35,368 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:01:35,368 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 489 of 596 [2022-11-18 21:01:35,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand