./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93946797-bada-4b01-86de-c1fdb8aec1d5/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93946797-bada-4b01-86de-c1fdb8aec1d5/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93946797-bada-4b01-86de-c1fdb8aec1d5/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93946797-bada-4b01-86de-c1fdb8aec1d5/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93946797-bada-4b01-86de-c1fdb8aec1d5/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93946797-bada-4b01-86de-c1fdb8aec1d5/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0bf2f5f336333cdf96c271b32cdeb9b70ee932e1c07acf27a63b4425ec902f3e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 10:34:22,834 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:34:22,836 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:34:22,866 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:34:22,867 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:34:22,872 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:34:22,875 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:34:22,879 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:34:22,881 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:34:22,889 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:34:22,890 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:34:22,893 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:34:22,894 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:34:22,900 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:34:22,901 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:34:22,902 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:34:22,903 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:34:22,904 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:34:22,905 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:34:22,907 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:34:22,909 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:34:22,913 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:34:22,916 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:34:22,917 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:34:22,927 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:34:22,927 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:34:22,928 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:34:22,930 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:34:22,930 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:34:22,931 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:34:22,932 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:34:22,933 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:34:22,935 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:34:22,936 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:34:22,937 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:34:22,937 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:34:22,938 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:34:22,938 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:34:22,939 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:34:22,940 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:34:22,941 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:34:22,942 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93946797-bada-4b01-86de-c1fdb8aec1d5/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 10:34:22,991 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:34:22,991 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:34:22,992 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:34:22,992 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:34:22,993 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:34:22,994 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:34:22,994 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:34:22,995 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:34:22,995 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:34:22,995 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:34:22,996 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:34:22,997 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 10:34:22,997 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:34:22,997 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:34:22,997 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:34:22,998 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:34:22,998 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:34:22,998 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:34:22,998 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 10:34:22,999 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:34:22,999 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:34:22,999 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:34:23,000 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:34:23,000 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:34:23,000 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:34:23,000 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:34:23,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:34:23,001 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:34:23,001 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:34:23,001 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:34:23,002 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:34:23,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:34:23,002 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:34:23,003 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:34:23,003 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:34:23,003 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_93946797-bada-4b01-86de-c1fdb8aec1d5/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93946797-bada-4b01-86de-c1fdb8aec1d5/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0bf2f5f336333cdf96c271b32cdeb9b70ee932e1c07acf27a63b4425ec902f3e [2022-11-20 10:34:23,330 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:34:23,369 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:34:23,372 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:34:23,374 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:34:23,374 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:34:23,376 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93946797-bada-4b01-86de-c1fdb8aec1d5/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr.i [2022-11-20 10:34:26,541 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:34:26,884 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:34:26,887 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93946797-bada-4b01-86de-c1fdb8aec1d5/sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr.i [2022-11-20 10:34:26,925 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93946797-bada-4b01-86de-c1fdb8aec1d5/bin/uautomizer-ug76WZFUDN/data/526730acd/eb30f3ab2a22462282b10e5c1b9027a8/FLAG51d31cbfd [2022-11-20 10:34:26,940 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93946797-bada-4b01-86de-c1fdb8aec1d5/bin/uautomizer-ug76WZFUDN/data/526730acd/eb30f3ab2a22462282b10e5c1b9027a8 [2022-11-20 10:34:26,943 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:34:26,944 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:34:26,946 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:34:26,947 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:34:26,952 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:34:26,953 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:34:26" (1/1) ... [2022-11-20 10:34:26,954 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53bc89b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:26, skipping insertion in model container [2022-11-20 10:34:26,954 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:34:26" (1/1) ... [2022-11-20 10:34:26,963 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:34:27,036 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:34:28,125 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:34:28,140 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:34:28,294 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:34:28,461 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:34:28,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:28 WrapperNode [2022-11-20 10:34:28,462 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:34:28,464 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:34:28,464 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:34:28,464 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:34:28,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:28" (1/1) ... [2022-11-20 10:34:28,516 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:28" (1/1) ... [2022-11-20 10:34:28,571 INFO L138 Inliner]: procedures = 524, calls = 61, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 145 [2022-11-20 10:34:28,571 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:34:28,572 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:34:28,572 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:34:28,572 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:34:28,583 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:28" (1/1) ... [2022-11-20 10:34:28,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:28" (1/1) ... [2022-11-20 10:34:28,608 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:28" (1/1) ... [2022-11-20 10:34:28,610 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:28" (1/1) ... [2022-11-20 10:34:28,620 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:28" (1/1) ... [2022-11-20 10:34:28,627 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:28" (1/1) ... [2022-11-20 10:34:28,631 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:28" (1/1) ... [2022-11-20 10:34:28,634 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:28" (1/1) ... [2022-11-20 10:34:28,640 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:34:28,641 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:34:28,641 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:34:28,641 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:34:28,642 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:28" (1/1) ... [2022-11-20 10:34:28,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:34:28,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93946797-bada-4b01-86de-c1fdb8aec1d5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:34:28,695 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93946797-bada-4b01-86de-c1fdb8aec1d5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:34:28,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93946797-bada-4b01-86de-c1fdb8aec1d5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:34:28,743 INFO L130 BoogieDeclarations]: Found specification of procedure counter_thread [2022-11-20 10:34:28,743 INFO L138 BoogieDeclarations]: Found implementation of procedure counter_thread [2022-11-20 10:34:28,744 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2022-11-20 10:34:28,744 INFO L130 BoogieDeclarations]: Found specification of procedure monitor_thread [2022-11-20 10:34:28,744 INFO L138 BoogieDeclarations]: Found implementation of procedure monitor_thread [2022-11-20 10:34:28,744 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2022-11-20 10:34:28,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:34:28,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 10:34:28,745 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 10:34:28,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:34:28,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:34:28,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:34:28,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:34:28,745 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2022-11-20 10:34:28,746 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-20 10:34:28,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 10:34:28,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:34:28,748 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 10:34:29,122 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:34:29,125 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:34:29,569 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:34:29,579 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:34:29,579 INFO L300 CfgBuilder]: Removed 19 assume(true) statements. [2022-11-20 10:34:29,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:34:29 BoogieIcfgContainer [2022-11-20 10:34:29,582 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:34:29,584 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:34:29,584 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:34:29,587 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:34:29,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:34:26" (1/3) ... [2022-11-20 10:34:29,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@762800bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:34:29, skipping insertion in model container [2022-11-20 10:34:29,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:28" (2/3) ... [2022-11-20 10:34:29,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@762800bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:34:29, skipping insertion in model container [2022-11-20 10:34:29,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:34:29" (3/3) ... [2022-11-20 10:34:29,591 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_36-trylock_nr.i [2022-11-20 10:34:29,600 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 10:34:29,617 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:34:29,618 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-11-20 10:34:29,618 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 10:34:29,705 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-20 10:34:29,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 251 places, 276 transitions, 568 flow [2022-11-20 10:34:29,851 INFO L130 PetriNetUnfolder]: 32/274 cut-off events. [2022-11-20 10:34:29,852 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-20 10:34:29,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 283 conditions, 274 events. 32/274 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 616 event pairs, 0 based on Foata normal form. 0/226 useless extension candidates. Maximal degree in co-relation 165. Up to 5 conditions per place. [2022-11-20 10:34:29,872 INFO L82 GeneralOperation]: Start removeDead. Operand has 251 places, 276 transitions, 568 flow [2022-11-20 10:34:29,887 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 235 places, 257 transitions, 526 flow [2022-11-20 10:34:29,898 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:34:29,904 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;@1cae2078, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:34:29,905 INFO L358 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2022-11-20 10:34:29,918 INFO L130 PetriNetUnfolder]: 0/55 cut-off events. [2022-11-20 10:34:29,918 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 10:34:29,918 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:34:29,919 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:34:29,920 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-20 10:34:29,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:34:29,925 INFO L85 PathProgramCache]: Analyzing trace with hash 350373763, now seen corresponding path program 1 times [2022-11-20 10:34:29,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:34:29,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555432169] [2022-11-20 10:34:29,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:34:29,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:34:30,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:30,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:34:30,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:34:30,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555432169] [2022-11-20 10:34:30,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555432169] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:34:30,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:34:30,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:34:30,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028334779] [2022-11-20 10:34:30,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:34:30,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:34:30,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:34:30,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:34:30,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:34:30,485 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 276 [2022-11-20 10:34:30,489 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 257 transitions, 526 flow. Second operand has 3 states, 3 states have (on average 234.33333333333334) internal successors, (703), 3 states have internal predecessors, (703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:30,490 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:34:30,490 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 276 [2022-11-20 10:34:30,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:34:30,655 INFO L130 PetriNetUnfolder]: 33/538 cut-off events. [2022-11-20 10:34:30,655 INFO L131 PetriNetUnfolder]: For 22/24 co-relation queries the response was YES. [2022-11-20 10:34:30,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 610 conditions, 538 events. 33/538 cut-off events. For 22/24 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2772 event pairs, 15 based on Foata normal form. 87/537 useless extension candidates. Maximal degree in co-relation 443. Up to 52 conditions per place. [2022-11-20 10:34:30,663 INFO L137 encePairwiseOnDemand]: 255/276 looper letters, 13 selfloop transitions, 2 changer transitions 3/223 dead transitions. [2022-11-20 10:34:30,663 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 223 transitions, 488 flow [2022-11-20 10:34:30,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:34:30,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:34:30,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 733 transitions. [2022-11-20 10:34:30,680 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8852657004830918 [2022-11-20 10:34:30,681 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 733 transitions. [2022-11-20 10:34:30,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 733 transitions. [2022-11-20 10:34:30,684 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:34:30,687 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 733 transitions. [2022-11-20 10:34:30,691 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 244.33333333333334) internal successors, (733), 3 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:30,699 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:30,700 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:30,702 INFO L175 Difference]: Start difference. First operand has 235 places, 257 transitions, 526 flow. Second operand 3 states and 733 transitions. [2022-11-20 10:34:30,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 223 transitions, 488 flow [2022-11-20 10:34:30,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 223 transitions, 480 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 10:34:30,713 INFO L231 Difference]: Finished difference. Result has 224 places, 220 transitions, 448 flow [2022-11-20 10:34:30,715 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=448, PETRI_PLACES=224, PETRI_TRANSITIONS=220} [2022-11-20 10:34:30,719 INFO L288 CegarLoopForPetriNet]: 235 programPoint places, -11 predicate places. [2022-11-20 10:34:30,720 INFO L495 AbstractCegarLoop]: Abstraction has has 224 places, 220 transitions, 448 flow [2022-11-20 10:34:30,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 234.33333333333334) internal successors, (703), 3 states have internal predecessors, (703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:30,721 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:34:30,721 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] [2022-11-20 10:34:30,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 10:34:30,721 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting counter_threadErr0ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-20 10:34:30,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:34:30,722 INFO L85 PathProgramCache]: Analyzing trace with hash 654018200, now seen corresponding path program 1 times [2022-11-20 10:34:30,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:34:30,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894497335] [2022-11-20 10:34:30,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:34:30,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:34:30,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:30,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:34:30,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:34:30,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894497335] [2022-11-20 10:34:30,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894497335] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:34:30,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:34:30,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:34:30,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649853851] [2022-11-20 10:34:30,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:34:30,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:34:30,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:34:30,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:34:30,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:34:30,928 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 276 [2022-11-20 10:34:30,929 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 220 transitions, 448 flow. Second operand has 3 states, 3 states have (on average 237.66666666666666) internal successors, (713), 3 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:30,930 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:34:30,930 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 276 [2022-11-20 10:34:30,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:34:31,069 INFO L130 PetriNetUnfolder]: 23/502 cut-off events. [2022-11-20 10:34:31,069 INFO L131 PetriNetUnfolder]: For 5/11 co-relation queries the response was YES. [2022-11-20 10:34:31,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 544 conditions, 502 events. 23/502 cut-off events. For 5/11 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2421 event pairs, 5 based on Foata normal form. 0/432 useless extension candidates. Maximal degree in co-relation 480. Up to 29 conditions per place. [2022-11-20 10:34:31,076 INFO L137 encePairwiseOnDemand]: 272/276 looper letters, 11 selfloop transitions, 2 changer transitions 0/221 dead transitions. [2022-11-20 10:34:31,077 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 221 transitions, 477 flow [2022-11-20 10:34:31,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:34:31,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:34:31,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 723 transitions. [2022-11-20 10:34:31,081 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8731884057971014 [2022-11-20 10:34:31,082 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 723 transitions. [2022-11-20 10:34:31,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 723 transitions. [2022-11-20 10:34:31,084 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:34:31,084 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 723 transitions. [2022-11-20 10:34:31,086 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 241.0) internal successors, (723), 3 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:31,089 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:31,090 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:31,090 INFO L175 Difference]: Start difference. First operand has 224 places, 220 transitions, 448 flow. Second operand 3 states and 723 transitions. [2022-11-20 10:34:31,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 221 transitions, 477 flow [2022-11-20 10:34:31,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 221 transitions, 473 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:34:31,102 INFO L231 Difference]: Finished difference. Result has 220 places, 220 transitions, 454 flow [2022-11-20 10:34:31,103 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=440, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=454, PETRI_PLACES=220, PETRI_TRANSITIONS=220} [2022-11-20 10:34:31,104 INFO L288 CegarLoopForPetriNet]: 235 programPoint places, -15 predicate places. [2022-11-20 10:34:31,104 INFO L495 AbstractCegarLoop]: Abstraction has has 220 places, 220 transitions, 454 flow [2022-11-20 10:34:31,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 237.66666666666666) internal successors, (713), 3 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:31,106 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:34:31,106 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:34:31,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 10:34:31,108 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-20 10:34:31,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:34:31,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1123478929, now seen corresponding path program 1 times [2022-11-20 10:34:31,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:34:31,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321973281] [2022-11-20 10:34:31,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:34:31,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:34:31,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:31,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:34:31,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:34:31,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321973281] [2022-11-20 10:34:31,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321973281] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:34:31,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:34:31,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:34:31,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682613742] [2022-11-20 10:34:31,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:34:31,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:34:31,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:34:31,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:34:31,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:34:31,304 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 276 [2022-11-20 10:34:31,305 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 220 transitions, 454 flow. Second operand has 3 states, 3 states have (on average 222.0) internal successors, (666), 3 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:31,305 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:34:31,305 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 276 [2022-11-20 10:34:31,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:34:31,479 INFO L130 PetriNetUnfolder]: 136/628 cut-off events. [2022-11-20 10:34:31,479 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-20 10:34:31,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 894 conditions, 628 events. 136/628 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 3643 event pairs, 76 based on Foata normal form. 1/573 useless extension candidates. Maximal degree in co-relation 725. Up to 243 conditions per place. [2022-11-20 10:34:31,487 INFO L137 encePairwiseOnDemand]: 260/276 looper letters, 17 selfloop transitions, 7 changer transitions 8/221 dead transitions. [2022-11-20 10:34:31,487 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 221 transitions, 514 flow [2022-11-20 10:34:31,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:34:31,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:34:31,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 699 transitions. [2022-11-20 10:34:31,491 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8442028985507246 [2022-11-20 10:34:31,491 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 699 transitions. [2022-11-20 10:34:31,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 699 transitions. [2022-11-20 10:34:31,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:34:31,492 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 699 transitions. [2022-11-20 10:34:31,494 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 233.0) internal successors, (699), 3 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:31,496 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:31,496 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:31,497 INFO L175 Difference]: Start difference. First operand has 220 places, 220 transitions, 454 flow. Second operand 3 states and 699 transitions. [2022-11-20 10:34:31,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 221 transitions, 514 flow [2022-11-20 10:34:31,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 221 transitions, 514 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 10:34:31,502 INFO L231 Difference]: Finished difference. Result has 215 places, 211 transitions, 466 flow [2022-11-20 10:34:31,503 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=438, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=466, PETRI_PLACES=215, PETRI_TRANSITIONS=211} [2022-11-20 10:34:31,505 INFO L288 CegarLoopForPetriNet]: 235 programPoint places, -20 predicate places. [2022-11-20 10:34:31,505 INFO L495 AbstractCegarLoop]: Abstraction has has 215 places, 211 transitions, 466 flow [2022-11-20 10:34:31,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 222.0) internal successors, (666), 3 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:31,506 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:34:31,507 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] [2022-11-20 10:34:31,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 10:34:31,507 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting counter_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-20 10:34:31,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:34:31,509 INFO L85 PathProgramCache]: Analyzing trace with hash 341041829, now seen corresponding path program 1 times [2022-11-20 10:34:31,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:34:31,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867283432] [2022-11-20 10:34:31,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:34:31,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:34:31,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:31,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:34:31,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:34:31,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867283432] [2022-11-20 10:34:31,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867283432] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:34:31,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:34:31,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:34:31,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639146919] [2022-11-20 10:34:31,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:34:31,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:34:31,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:34:31,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:34:31,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:34:31,678 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 276 [2022-11-20 10:34:31,679 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 211 transitions, 466 flow. Second operand has 3 states, 3 states have (on average 237.0) internal successors, (711), 3 states have internal predecessors, (711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:31,680 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:34:31,680 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 276 [2022-11-20 10:34:31,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:34:31,846 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([744] L1803-2-->L1803-3: Formula: (= |v_#race~end_time~0_4| 0) InVars {} OutVars{#race~end_time~0=|v_#race~end_time~0_4|} AuxVars[] AssignedVars[#race~end_time~0][115], [260#(= |#race~end_time~0| 0), 42#L1803-3true, 268#true, Black: 258#true, 263#true, 68#L1819-3true, 219#L1847-3true]) [2022-11-20 10:34:31,846 INFO L383 tUnfolder$Statistics]: this new event has 130 ancestors and is cut-off event [2022-11-20 10:34:31,846 INFO L386 tUnfolder$Statistics]: existing Event has 98 ancestors and is cut-off event [2022-11-20 10:34:31,846 INFO L386 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-11-20 10:34:31,846 INFO L386 tUnfolder$Statistics]: existing Event has 81 ancestors and is cut-off event [2022-11-20 10:34:31,849 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([688] L1819-2-->L1819-3: Formula: (= |v_#race~end_time~0_1| 0) InVars {} OutVars{#race~end_time~0=|v_#race~end_time~0_1|} AuxVars[] AssignedVars[#race~end_time~0][108], [260#(= |#race~end_time~0| 0), 42#L1803-3true, 268#true, Black: 258#true, 263#true, 68#L1819-3true, 219#L1847-3true]) [2022-11-20 10:34:31,849 INFO L383 tUnfolder$Statistics]: this new event has 130 ancestors and is cut-off event [2022-11-20 10:34:31,850 INFO L386 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-11-20 10:34:31,850 INFO L386 tUnfolder$Statistics]: existing Event has 96 ancestors and is cut-off event [2022-11-20 10:34:31,850 INFO L386 tUnfolder$Statistics]: existing Event has 81 ancestors and is cut-off event [2022-11-20 10:34:31,882 INFO L130 PetriNetUnfolder]: 129/1066 cut-off events. [2022-11-20 10:34:31,882 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-20 10:34:31,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1364 conditions, 1066 events. 129/1066 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 6816 event pairs, 16 based on Foata normal form. 0/954 useless extension candidates. Maximal degree in co-relation 1180. Up to 142 conditions per place. [2022-11-20 10:34:31,893 INFO L137 encePairwiseOnDemand]: 270/276 looper letters, 14 selfloop transitions, 4 changer transitions 0/217 dead transitions. [2022-11-20 10:34:31,894 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 217 transitions, 516 flow [2022-11-20 10:34:31,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:34:31,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:34:31,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 728 transitions. [2022-11-20 10:34:31,896 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8792270531400966 [2022-11-20 10:34:31,896 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 728 transitions. [2022-11-20 10:34:31,896 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 728 transitions. [2022-11-20 10:34:31,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:34:31,897 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 728 transitions. [2022-11-20 10:34:31,899 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 242.66666666666666) internal successors, (728), 3 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:31,900 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:31,901 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:31,901 INFO L175 Difference]: Start difference. First operand has 215 places, 211 transitions, 466 flow. Second operand 3 states and 728 transitions. [2022-11-20 10:34:31,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 217 transitions, 516 flow [2022-11-20 10:34:31,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 217 transitions, 516 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 10:34:31,906 INFO L231 Difference]: Finished difference. Result has 212 places, 213 transitions, 494 flow [2022-11-20 10:34:31,907 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=464, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=494, PETRI_PLACES=212, PETRI_TRANSITIONS=213} [2022-11-20 10:34:31,907 INFO L288 CegarLoopForPetriNet]: 235 programPoint places, -23 predicate places. [2022-11-20 10:34:31,908 INFO L495 AbstractCegarLoop]: Abstraction has has 212 places, 213 transitions, 494 flow [2022-11-20 10:34:31,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 237.0) internal successors, (711), 3 states have internal predecessors, (711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:31,908 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:34:31,909 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] [2022-11-20 10:34:31,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 10:34:31,909 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-20 10:34:31,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:34:31,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1128374688, now seen corresponding path program 1 times [2022-11-20 10:34:31,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:34:31,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516740608] [2022-11-20 10:34:31,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:34:31,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:34:31,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:32,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:34:32,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:34:32,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516740608] [2022-11-20 10:34:32,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516740608] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:34:32,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:34:32,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:34:32,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480807188] [2022-11-20 10:34:32,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:34:32,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:34:32,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:34:32,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:34:32,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:34:32,491 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 276 [2022-11-20 10:34:32,493 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 213 transitions, 494 flow. Second operand has 6 states, 6 states have (on average 226.83333333333334) internal successors, (1361), 6 states have internal predecessors, (1361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:32,493 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:34:32,493 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 276 [2022-11-20 10:34:32,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:34:32,662 INFO L130 PetriNetUnfolder]: 71/723 cut-off events. [2022-11-20 10:34:32,662 INFO L131 PetriNetUnfolder]: For 14/28 co-relation queries the response was YES. [2022-11-20 10:34:32,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 945 conditions, 723 events. 71/723 cut-off events. For 14/28 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 3902 event pairs, 8 based on Foata normal form. 8/664 useless extension candidates. Maximal degree in co-relation 755. Up to 103 conditions per place. [2022-11-20 10:34:32,670 INFO L137 encePairwiseOnDemand]: 271/276 looper letters, 14 selfloop transitions, 4 changer transitions 0/212 dead transitions. [2022-11-20 10:34:32,670 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 212 transitions, 528 flow [2022-11-20 10:34:32,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:34:32,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 10:34:32,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1369 transitions. [2022-11-20 10:34:32,674 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8266908212560387 [2022-11-20 10:34:32,674 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1369 transitions. [2022-11-20 10:34:32,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1369 transitions. [2022-11-20 10:34:32,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:34:32,675 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1369 transitions. [2022-11-20 10:34:32,678 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 228.16666666666666) internal successors, (1369), 6 states have internal predecessors, (1369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:32,681 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:32,683 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:32,683 INFO L175 Difference]: Start difference. First operand has 212 places, 213 transitions, 494 flow. Second operand 6 states and 1369 transitions. [2022-11-20 10:34:32,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 212 transitions, 528 flow [2022-11-20 10:34:32,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 212 transitions, 520 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:34:32,688 INFO L231 Difference]: Finished difference. Result has 214 places, 212 transitions, 492 flow [2022-11-20 10:34:32,688 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=492, PETRI_PLACES=214, PETRI_TRANSITIONS=212} [2022-11-20 10:34:32,689 INFO L288 CegarLoopForPetriNet]: 235 programPoint places, -21 predicate places. [2022-11-20 10:34:32,689 INFO L495 AbstractCegarLoop]: Abstraction has has 214 places, 212 transitions, 492 flow [2022-11-20 10:34:32,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 226.83333333333334) internal successors, (1361), 6 states have internal predecessors, (1361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:32,690 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:34:32,691 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:34:32,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 10:34:32,691 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting counter_threadErr3ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-20 10:34:32,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:34:32,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1776884825, now seen corresponding path program 1 times [2022-11-20 10:34:32,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:34:32,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386992996] [2022-11-20 10:34:32,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:34:32,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:34:32,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:32,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:34:32,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:34:32,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386992996] [2022-11-20 10:34:32,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386992996] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:34:32,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:34:32,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:34:32,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414574465] [2022-11-20 10:34:32,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:34:32,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:34:32,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:34:32,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:34:32,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:34:32,784 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 276 [2022-11-20 10:34:32,785 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 212 transitions, 492 flow. Second operand has 3 states, 3 states have (on average 236.0) internal successors, (708), 3 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:32,786 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:34:32,786 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 276 [2022-11-20 10:34:32,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:34:32,965 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([744] L1803-2-->L1803-3: Formula: (= |v_#race~end_time~0_4| 0) InVars {} OutVars{#race~end_time~0=|v_#race~end_time~0_4|} AuxVars[] AssignedVars[#race~end_time~0][115], [281#true, 260#(= |#race~end_time~0| 0), Black: 270#(= |#race~counter~0| 0), 42#L1803-3true, Black: 258#true, 274#true, 263#true, 219#L1847-3true, 68#L1819-3true]) [2022-11-20 10:34:32,965 INFO L383 tUnfolder$Statistics]: this new event has 130 ancestors and is cut-off event [2022-11-20 10:34:32,965 INFO L386 tUnfolder$Statistics]: existing Event has 98 ancestors and is cut-off event [2022-11-20 10:34:32,966 INFO L386 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-11-20 10:34:32,966 INFO L386 tUnfolder$Statistics]: existing Event has 81 ancestors and is cut-off event [2022-11-20 10:34:32,970 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([688] L1819-2-->L1819-3: Formula: (= |v_#race~end_time~0_1| 0) InVars {} OutVars{#race~end_time~0=|v_#race~end_time~0_1|} AuxVars[] AssignedVars[#race~end_time~0][108], [281#true, 260#(= |#race~end_time~0| 0), Black: 270#(= |#race~counter~0| 0), 42#L1803-3true, Black: 258#true, 274#true, 263#true, 219#L1847-3true, 68#L1819-3true]) [2022-11-20 10:34:32,971 INFO L383 tUnfolder$Statistics]: this new event has 130 ancestors and is cut-off event [2022-11-20 10:34:32,971 INFO L386 tUnfolder$Statistics]: existing Event has 96 ancestors and is cut-off event [2022-11-20 10:34:32,971 INFO L386 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-11-20 10:34:32,971 INFO L386 tUnfolder$Statistics]: existing Event has 81 ancestors and is cut-off event [2022-11-20 10:34:33,024 INFO L130 PetriNetUnfolder]: 148/1264 cut-off events. [2022-11-20 10:34:33,024 INFO L131 PetriNetUnfolder]: For 44/54 co-relation queries the response was YES. [2022-11-20 10:34:33,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1683 conditions, 1264 events. 148/1264 cut-off events. For 44/54 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 8759 event pairs, 21 based on Foata normal form. 2/1147 useless extension candidates. Maximal degree in co-relation 1494. Up to 165 conditions per place. [2022-11-20 10:34:33,038 INFO L137 encePairwiseOnDemand]: 271/276 looper letters, 19 selfloop transitions, 5 changer transitions 0/220 dead transitions. [2022-11-20 10:34:33,038 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 220 transitions, 567 flow [2022-11-20 10:34:33,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:34:33,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:34:33,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 722 transitions. [2022-11-20 10:34:33,041 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8719806763285024 [2022-11-20 10:34:33,041 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 722 transitions. [2022-11-20 10:34:33,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 722 transitions. [2022-11-20 10:34:33,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:34:33,042 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 722 transitions. [2022-11-20 10:34:33,043 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:33,045 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:33,046 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:33,046 INFO L175 Difference]: Start difference. First operand has 214 places, 212 transitions, 492 flow. Second operand 3 states and 722 transitions. [2022-11-20 10:34:33,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 220 transitions, 567 flow [2022-11-20 10:34:33,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 220 transitions, 560 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 10:34:33,051 INFO L231 Difference]: Finished difference. Result has 214 places, 216 transitions, 527 flow [2022-11-20 10:34:33,052 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=485, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=527, PETRI_PLACES=214, PETRI_TRANSITIONS=216} [2022-11-20 10:34:33,053 INFO L288 CegarLoopForPetriNet]: 235 programPoint places, -21 predicate places. [2022-11-20 10:34:33,053 INFO L495 AbstractCegarLoop]: Abstraction has has 214 places, 216 transitions, 527 flow [2022-11-20 10:34:33,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 236.0) internal successors, (708), 3 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:33,053 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:34:33,054 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:34:33,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 10:34:33,054 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-20 10:34:33,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:34:33,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1094186694, now seen corresponding path program 1 times [2022-11-20 10:34:33,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:34:33,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217649576] [2022-11-20 10:34:33,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:34:33,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:34:33,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:33,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:34:33,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:34:33,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217649576] [2022-11-20 10:34:33,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217649576] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:34:33,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:34:33,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:34:33,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761911041] [2022-11-20 10:34:33,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:34:33,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:34:33,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:34:33,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:34:33,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:34:33,768 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 276 [2022-11-20 10:34:33,769 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 216 transitions, 527 flow. Second operand has 6 states, 6 states have (on average 227.83333333333334) internal successors, (1367), 6 states have internal predecessors, (1367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:33,769 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:34:33,770 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 276 [2022-11-20 10:34:33,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:34:33,985 INFO L130 PetriNetUnfolder]: 106/895 cut-off events. [2022-11-20 10:34:33,985 INFO L131 PetriNetUnfolder]: For 54/75 co-relation queries the response was YES. [2022-11-20 10:34:33,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1211 conditions, 895 events. 106/895 cut-off events. For 54/75 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 5357 event pairs, 8 based on Foata normal form. 2/813 useless extension candidates. Maximal degree in co-relation 1020. Up to 134 conditions per place. [2022-11-20 10:34:33,994 INFO L137 encePairwiseOnDemand]: 271/276 looper letters, 13 selfloop transitions, 4 changer transitions 0/215 dead transitions. [2022-11-20 10:34:33,994 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 215 transitions, 559 flow [2022-11-20 10:34:33,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:34:33,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 10:34:33,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1368 transitions. [2022-11-20 10:34:33,998 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8260869565217391 [2022-11-20 10:34:33,998 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1368 transitions. [2022-11-20 10:34:33,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1368 transitions. [2022-11-20 10:34:33,999 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:34:33,999 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1368 transitions. [2022-11-20 10:34:34,002 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 228.0) internal successors, (1368), 6 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:34,007 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:34,008 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:34,008 INFO L175 Difference]: Start difference. First operand has 214 places, 216 transitions, 527 flow. Second operand 6 states and 1368 transitions. [2022-11-20 10:34:34,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 215 transitions, 559 flow [2022-11-20 10:34:34,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 215 transitions, 549 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:34:34,016 INFO L231 Difference]: Finished difference. Result has 216 places, 215 transitions, 523 flow [2022-11-20 10:34:34,016 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=515, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=523, PETRI_PLACES=216, PETRI_TRANSITIONS=215} [2022-11-20 10:34:34,018 INFO L288 CegarLoopForPetriNet]: 235 programPoint places, -19 predicate places. [2022-11-20 10:34:34,018 INFO L495 AbstractCegarLoop]: Abstraction has has 216 places, 215 transitions, 523 flow [2022-11-20 10:34:34,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 227.83333333333334) internal successors, (1367), 6 states have internal predecessors, (1367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:34,019 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:34:34,019 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] [2022-11-20 10:34:34,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 10:34:34,019 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting counter_threadErr3ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-20 10:34:34,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:34:34,020 INFO L85 PathProgramCache]: Analyzing trace with hash -185614811, now seen corresponding path program 1 times [2022-11-20 10:34:34,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:34:34,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477439342] [2022-11-20 10:34:34,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:34:34,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:34:34,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:34,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:34:34,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:34:34,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477439342] [2022-11-20 10:34:34,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477439342] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:34:34,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:34:34,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:34:34,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078152007] [2022-11-20 10:34:34,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:34:34,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:34:34,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:34:34,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:34:34,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:34:34,367 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 276 [2022-11-20 10:34:34,368 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 215 transitions, 523 flow. Second operand has 5 states, 5 states have (on average 228.0) internal successors, (1140), 5 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:34,368 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:34:34,369 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 276 [2022-11-20 10:34:34,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:34:34,909 INFO L130 PetriNetUnfolder]: 332/2435 cut-off events. [2022-11-20 10:34:34,910 INFO L131 PetriNetUnfolder]: For 79/87 co-relation queries the response was YES. [2022-11-20 10:34:34,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3464 conditions, 2435 events. 332/2435 cut-off events. For 79/87 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 21053 event pairs, 49 based on Foata normal form. 2/2232 useless extension candidates. Maximal degree in co-relation 3376. Up to 251 conditions per place. [2022-11-20 10:34:34,935 INFO L137 encePairwiseOnDemand]: 266/276 looper letters, 37 selfloop transitions, 23 changer transitions 3/255 dead transitions. [2022-11-20 10:34:34,935 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 255 transitions, 733 flow [2022-11-20 10:34:34,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 10:34:34,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-20 10:34:34,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2090 transitions. [2022-11-20 10:34:34,940 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8413848631239935 [2022-11-20 10:34:34,940 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2090 transitions. [2022-11-20 10:34:34,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2090 transitions. [2022-11-20 10:34:34,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:34:34,942 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2090 transitions. [2022-11-20 10:34:34,946 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 232.22222222222223) internal successors, (2090), 9 states have internal predecessors, (2090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:34,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 276.0) internal successors, (2760), 10 states have internal predecessors, (2760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:34,952 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 276.0) internal successors, (2760), 10 states have internal predecessors, (2760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:34,952 INFO L175 Difference]: Start difference. First operand has 216 places, 215 transitions, 523 flow. Second operand 9 states and 2090 transitions. [2022-11-20 10:34:34,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 255 transitions, 733 flow [2022-11-20 10:34:34,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 255 transitions, 726 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 10:34:34,958 INFO L231 Difference]: Finished difference. Result has 228 places, 237 transitions, 686 flow [2022-11-20 10:34:34,959 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=516, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=686, PETRI_PLACES=228, PETRI_TRANSITIONS=237} [2022-11-20 10:34:34,959 INFO L288 CegarLoopForPetriNet]: 235 programPoint places, -7 predicate places. [2022-11-20 10:34:34,959 INFO L495 AbstractCegarLoop]: Abstraction has has 228 places, 237 transitions, 686 flow [2022-11-20 10:34:34,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 228.0) internal successors, (1140), 5 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:34,960 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:34:34,960 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] [2022-11-20 10:34:34,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 10:34:34,961 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting monitor_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-20 10:34:34,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:34:34,961 INFO L85 PathProgramCache]: Analyzing trace with hash -2099521675, now seen corresponding path program 1 times [2022-11-20 10:34:34,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:34:34,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125977238] [2022-11-20 10:34:34,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:34:34,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:34:34,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:35,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:34:35,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:34:35,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125977238] [2022-11-20 10:34:35,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125977238] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:34:35,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:34:35,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:34:35,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527271469] [2022-11-20 10:34:35,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:34:35,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:34:35,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:34:35,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:34:35,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:34:35,238 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 276 [2022-11-20 10:34:35,240 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 237 transitions, 686 flow. Second operand has 5 states, 5 states have (on average 228.0) internal successors, (1140), 5 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:35,240 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:34:35,240 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 276 [2022-11-20 10:34:35,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:34:36,030 INFO L130 PetriNetUnfolder]: 409/3530 cut-off events. [2022-11-20 10:34:36,030 INFO L131 PetriNetUnfolder]: For 924/993 co-relation queries the response was YES. [2022-11-20 10:34:36,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5599 conditions, 3530 events. 409/3530 cut-off events. For 924/993 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 34920 event pairs, 33 based on Foata normal form. 28/3329 useless extension candidates. Maximal degree in co-relation 5304. Up to 367 conditions per place. [2022-11-20 10:34:36,070 INFO L137 encePairwiseOnDemand]: 266/276 looper letters, 44 selfloop transitions, 33 changer transitions 3/272 dead transitions. [2022-11-20 10:34:36,070 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 272 transitions, 1017 flow [2022-11-20 10:34:36,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:34:36,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 10:34:36,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1406 transitions. [2022-11-20 10:34:36,073 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8490338164251208 [2022-11-20 10:34:36,073 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1406 transitions. [2022-11-20 10:34:36,074 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1406 transitions. [2022-11-20 10:34:36,074 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:34:36,075 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1406 transitions. [2022-11-20 10:34:36,077 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 234.33333333333334) internal successors, (1406), 6 states have internal predecessors, (1406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:36,080 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:36,081 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:36,081 INFO L175 Difference]: Start difference. First operand has 228 places, 237 transitions, 686 flow. Second operand 6 states and 1406 transitions. [2022-11-20 10:34:36,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 272 transitions, 1017 flow [2022-11-20 10:34:36,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 272 transitions, 1017 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 10:34:36,091 INFO L231 Difference]: Finished difference. Result has 238 places, 258 transitions, 956 flow [2022-11-20 10:34:36,091 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=686, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=956, PETRI_PLACES=238, PETRI_TRANSITIONS=258} [2022-11-20 10:34:36,092 INFO L288 CegarLoopForPetriNet]: 235 programPoint places, 3 predicate places. [2022-11-20 10:34:36,092 INFO L495 AbstractCegarLoop]: Abstraction has has 238 places, 258 transitions, 956 flow [2022-11-20 10:34:36,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 228.0) internal successors, (1140), 5 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:36,093 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:34:36,093 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] [2022-11-20 10:34:36,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 10:34:36,093 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting monitor_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-20 10:34:36,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:34:36,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1984317043, now seen corresponding path program 2 times [2022-11-20 10:34:36,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:34:36,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412776098] [2022-11-20 10:34:36,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:34:36,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:34:36,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:36,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:34:36,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:34:36,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412776098] [2022-11-20 10:34:36,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412776098] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:34:36,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:34:36,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:34:36,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356138960] [2022-11-20 10:34:36,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:34:36,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:34:36,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:34:36,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:34:36,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:34:36,384 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 276 [2022-11-20 10:34:36,385 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 258 transitions, 956 flow. Second operand has 5 states, 5 states have (on average 228.0) internal successors, (1140), 5 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:36,385 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:34:36,386 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 276 [2022-11-20 10:34:36,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:34:37,354 INFO L130 PetriNetUnfolder]: 496/3917 cut-off events. [2022-11-20 10:34:37,355 INFO L131 PetriNetUnfolder]: For 3091/3259 co-relation queries the response was YES. [2022-11-20 10:34:37,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7061 conditions, 3917 events. 496/3917 cut-off events. For 3091/3259 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 39200 event pairs, 43 based on Foata normal form. 68/3714 useless extension candidates. Maximal degree in co-relation 6731. Up to 408 conditions per place. [2022-11-20 10:34:37,401 INFO L137 encePairwiseOnDemand]: 263/276 looper letters, 47 selfloop transitions, 68 changer transitions 3/310 dead transitions. [2022-11-20 10:34:37,401 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 310 transitions, 1552 flow [2022-11-20 10:34:37,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 10:34:37,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-20 10:34:37,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1648 transitions. [2022-11-20 10:34:37,406 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8530020703933747 [2022-11-20 10:34:37,406 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1648 transitions. [2022-11-20 10:34:37,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1648 transitions. [2022-11-20 10:34:37,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:34:37,407 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1648 transitions. [2022-11-20 10:34:37,411 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 235.42857142857142) internal successors, (1648), 7 states have internal predecessors, (1648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:37,414 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 276.0) internal successors, (2208), 8 states have internal predecessors, (2208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:37,416 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 276.0) internal successors, (2208), 8 states have internal predecessors, (2208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:37,416 INFO L175 Difference]: Start difference. First operand has 238 places, 258 transitions, 956 flow. Second operand 7 states and 1648 transitions. [2022-11-20 10:34:37,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 310 transitions, 1552 flow [2022-11-20 10:34:37,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 310 transitions, 1536 flow, removed 8 selfloop flow, removed 0 redundant places. [2022-11-20 10:34:37,434 INFO L231 Difference]: Finished difference. Result has 250 places, 293 transitions, 1543 flow [2022-11-20 10:34:37,435 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=940, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=258, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1543, PETRI_PLACES=250, PETRI_TRANSITIONS=293} [2022-11-20 10:34:37,435 INFO L288 CegarLoopForPetriNet]: 235 programPoint places, 15 predicate places. [2022-11-20 10:34:37,436 INFO L495 AbstractCegarLoop]: Abstraction has has 250 places, 293 transitions, 1543 flow [2022-11-20 10:34:37,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 228.0) internal successors, (1140), 5 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:37,437 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:34:37,437 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] [2022-11-20 10:34:37,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 10:34:37,437 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting monitor_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-20 10:34:37,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:34:37,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1777524279, now seen corresponding path program 3 times [2022-11-20 10:34:37,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:34:37,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314899512] [2022-11-20 10:34:37,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:34:37,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:34:37,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:37,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:34:37,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:34:37,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314899512] [2022-11-20 10:34:37,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314899512] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:34:37,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:34:37,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:34:37,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182688811] [2022-11-20 10:34:37,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:34:37,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:34:37,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:34:37,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:34:37,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:34:37,719 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 276 [2022-11-20 10:34:37,733 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 293 transitions, 1543 flow. Second operand has 5 states, 5 states have (on average 228.0) internal successors, (1140), 5 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:37,733 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:34:37,733 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 276 [2022-11-20 10:34:37,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:34:38,479 INFO L130 PetriNetUnfolder]: 372/3147 cut-off events. [2022-11-20 10:34:38,479 INFO L131 PetriNetUnfolder]: For 4656/4848 co-relation queries the response was YES. [2022-11-20 10:34:38,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6010 conditions, 3147 events. 372/3147 cut-off events. For 4656/4848 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 29990 event pairs, 45 based on Foata normal form. 75/3002 useless extension candidates. Maximal degree in co-relation 5653. Up to 332 conditions per place. [2022-11-20 10:34:38,511 INFO L137 encePairwiseOnDemand]: 266/276 looper letters, 0 selfloop transitions, 0 changer transitions 297/297 dead transitions. [2022-11-20 10:34:38,511 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 297 transitions, 1810 flow [2022-11-20 10:34:38,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 10:34:38,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-20 10:34:38,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1640 transitions. [2022-11-20 10:34:38,516 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8488612836438924 [2022-11-20 10:34:38,516 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1640 transitions. [2022-11-20 10:34:38,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1640 transitions. [2022-11-20 10:34:38,517 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:34:38,517 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1640 transitions. [2022-11-20 10:34:38,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 234.28571428571428) internal successors, (1640), 7 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:38,533 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 276.0) internal successors, (2208), 8 states have internal predecessors, (2208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:38,534 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 276.0) internal successors, (2208), 8 states have internal predecessors, (2208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:38,534 INFO L175 Difference]: Start difference. First operand has 250 places, 293 transitions, 1543 flow. Second operand 7 states and 1640 transitions. [2022-11-20 10:34:38,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 297 transitions, 1810 flow [2022-11-20 10:34:38,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 297 transitions, 1666 flow, removed 25 selfloop flow, removed 5 redundant places. [2022-11-20 10:34:38,557 INFO L231 Difference]: Finished difference. Result has 249 places, 0 transitions, 0 flow [2022-11-20 10:34:38,558 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=1267, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=249, PETRI_TRANSITIONS=0} [2022-11-20 10:34:38,558 INFO L288 CegarLoopForPetriNet]: 235 programPoint places, 14 predicate places. [2022-11-20 10:34:38,558 INFO L495 AbstractCegarLoop]: Abstraction has has 249 places, 0 transitions, 0 flow [2022-11-20 10:34:38,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 228.0) internal successors, (1140), 5 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:38,561 INFO L805 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr0ASSERT_VIOLATIONDATA_RACE (26 of 27 remaining) [2022-11-20 10:34:38,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (25 of 27 remaining) [2022-11-20 10:34:38,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (24 of 27 remaining) [2022-11-20 10:34:38,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr3ASSERT_VIOLATIONDATA_RACE (23 of 27 remaining) [2022-11-20 10:34:38,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr0ASSERT_VIOLATIONDATA_RACE (22 of 27 remaining) [2022-11-20 10:34:38,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr1ASSERT_VIOLATIONDATA_RACE (21 of 27 remaining) [2022-11-20 10:34:38,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr2ASSERT_VIOLATIONDATA_RACE (20 of 27 remaining) [2022-11-20 10:34:38,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr4ASSERT_VIOLATIONDATA_RACE (19 of 27 remaining) [2022-11-20 10:34:38,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr3ASSERT_VIOLATIONDATA_RACE (18 of 27 remaining) [2022-11-20 10:34:38,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (17 of 27 remaining) [2022-11-20 10:34:38,564 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 27 remaining) [2022-11-20 10:34:38,564 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (15 of 27 remaining) [2022-11-20 10:34:38,564 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 27 remaining) [2022-11-20 10:34:38,564 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 27 remaining) [2022-11-20 10:34:38,564 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (12 of 27 remaining) [2022-11-20 10:34:38,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (11 of 27 remaining) [2022-11-20 10:34:38,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 27 remaining) [2022-11-20 10:34:38,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 27 remaining) [2022-11-20 10:34:38,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr0ASSERT_VIOLATIONDATA_RACE (8 of 27 remaining) [2022-11-20 10:34:38,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (7 of 27 remaining) [2022-11-20 10:34:38,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (6 of 27 remaining) [2022-11-20 10:34:38,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr3ASSERT_VIOLATIONDATA_RACE (5 of 27 remaining) [2022-11-20 10:34:38,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 27 remaining) [2022-11-20 10:34:38,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr1ASSERT_VIOLATIONDATA_RACE (3 of 27 remaining) [2022-11-20 10:34:38,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr2ASSERT_VIOLATIONDATA_RACE (2 of 27 remaining) [2022-11-20 10:34:38,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr4ASSERT_VIOLATIONDATA_RACE (1 of 27 remaining) [2022-11-20 10:34:38,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr3ASSERT_VIOLATIONDATA_RACE (0 of 27 remaining) [2022-11-20 10:34:38,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 10:34:38,567 INFO L444 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:34:38,573 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 10:34:38,573 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 10:34:38,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:34:38 BasicIcfg [2022-11-20 10:34:38,578 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 10:34:38,579 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 10:34:38,579 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 10:34:38,579 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 10:34:38,579 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:34:29" (3/4) ... [2022-11-20 10:34:38,582 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 10:34:38,588 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure monitor_thread [2022-11-20 10:34:38,588 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure counter_thread [2022-11-20 10:34:38,594 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2022-11-20 10:34:38,595 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-20 10:34:38,595 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-20 10:34:38,595 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 10:34:38,595 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 10:34:38,637 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93946797-bada-4b01-86de-c1fdb8aec1d5/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 10:34:38,637 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 10:34:38,637 INFO L158 Benchmark]: Toolchain (without parser) took 11693.18ms. Allocated memory was 146.8MB in the beginning and 333.4MB in the end (delta: 186.6MB). Free memory was 95.7MB in the beginning and 109.6MB in the end (delta: -13.9MB). Peak memory consumption was 173.6MB. Max. memory is 16.1GB. [2022-11-20 10:34:38,638 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 146.8MB. Free memory is still 85.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:34:38,638 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1516.29ms. Allocated memory was 146.8MB in the beginning and 186.6MB in the end (delta: 39.8MB). Free memory was 95.3MB in the beginning and 112.7MB in the end (delta: -17.4MB). Peak memory consumption was 34.5MB. Max. memory is 16.1GB. [2022-11-20 10:34:38,638 INFO L158 Benchmark]: Boogie Procedure Inliner took 107.96ms. Allocated memory is still 186.6MB. Free memory was 112.7MB in the beginning and 109.4MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 10:34:38,639 INFO L158 Benchmark]: Boogie Preprocessor took 68.24ms. Allocated memory is still 186.6MB. Free memory was 109.4MB in the beginning and 106.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:34:38,639 INFO L158 Benchmark]: RCFGBuilder took 941.01ms. Allocated memory is still 186.6MB. Free memory was 106.5MB in the beginning and 135.8MB in the end (delta: -29.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-20 10:34:38,639 INFO L158 Benchmark]: TraceAbstraction took 8994.39ms. Allocated memory was 186.6MB in the beginning and 333.4MB in the end (delta: 146.8MB). Free memory was 134.7MB in the beginning and 112.8MB in the end (delta: 22.0MB). Peak memory consumption was 206.5MB. Max. memory is 16.1GB. [2022-11-20 10:34:38,640 INFO L158 Benchmark]: Witness Printer took 58.41ms. Allocated memory is still 333.4MB. Free memory was 112.8MB in the beginning and 109.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:34:38,641 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 146.8MB. Free memory is still 85.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1516.29ms. Allocated memory was 146.8MB in the beginning and 186.6MB in the end (delta: 39.8MB). Free memory was 95.3MB in the beginning and 112.7MB in the end (delta: -17.4MB). Peak memory consumption was 34.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 107.96ms. Allocated memory is still 186.6MB. Free memory was 112.7MB in the beginning and 109.4MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.24ms. Allocated memory is still 186.6MB. Free memory was 109.4MB in the beginning and 106.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 941.01ms. Allocated memory is still 186.6MB. Free memory was 106.5MB in the beginning and 135.8MB in the end (delta: -29.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 8994.39ms. Allocated memory was 186.6MB in the beginning and 333.4MB in the end (delta: 146.8MB). Free memory was 134.7MB in the beginning and 112.8MB in the end (delta: 22.0MB). Peak memory consumption was 206.5MB. Max. memory is 16.1GB. * Witness Printer took 58.41ms. Allocated memory is still 333.4MB. Free memory was 112.8MB in the beginning and 109.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1819]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1824]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1825]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1828]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1803]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1806]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1808]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1811]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1808]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1843]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1846]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1849]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1850]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1852]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1853]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1855]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 350 locations, 27 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 8.8s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 4.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 126 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 126 mSDsluCounter, 264 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 95 mSDsCounter, 69 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 452 IncrementalHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 69 mSolverCounterUnsat, 169 mSDtfsCounter, 452 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1543occurred in iteration=10, InterpolantAutomatonStates: 56, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 968 NumberOfCodeBlocks, 968 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 957 ConstructedInterpolants, 0 QuantifiedInterpolants, 1483 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-20 10:34:38,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93946797-bada-4b01-86de-c1fdb8aec1d5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE