./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f0f633-e868-48d5-8f08-c3d7899a4192/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f0f633-e868-48d5-8f08-c3d7899a4192/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f0f633-e868-48d5-8f08-c3d7899a4192/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f0f633-e868-48d5-8f08-c3d7899a4192/bin/uautomizer-ZXIjhQolGL/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f0f633-e868-48d5-8f08-c3d7899a4192/bin/uautomizer-ZXIjhQolGL/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f0f633-e868-48d5-8f08-c3d7899a4192/bin/uautomizer-ZXIjhQolGL --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 e97ea8fdd79cc88ea5d66529f91fae4bb4475970931b09c5966dea7f1229156f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 05:33:20,817 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 05:33:20,819 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 05:33:20,862 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 05:33:20,865 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 05:33:20,871 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 05:33:20,872 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 05:33:20,875 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 05:33:20,877 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 05:33:20,879 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 05:33:20,880 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 05:33:20,882 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 05:33:20,882 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 05:33:20,896 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 05:33:20,898 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 05:33:20,901 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 05:33:20,907 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 05:33:20,908 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 05:33:20,912 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 05:33:20,919 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 05:33:20,926 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 05:33:20,928 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 05:33:20,930 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 05:33:20,931 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 05:33:20,937 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 05:33:20,940 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 05:33:20,940 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 05:33:20,943 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 05:33:20,944 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 05:33:20,946 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 05:33:20,947 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 05:33:20,949 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 05:33:20,951 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 05:33:20,953 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 05:33:20,955 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 05:33:20,956 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 05:33:20,957 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 05:33:20,957 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 05:33:20,957 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 05:33:20,958 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 05:33:20,959 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 05:33:20,961 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f0f633-e868-48d5-8f08-c3d7899a4192/bin/uautomizer-ZXIjhQolGL/config/svcomp-DataRace-32bit-Automizer_Default.epf [2021-11-19 05:33:21,021 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 05:33:21,025 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 05:33:21,026 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 05:33:21,026 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 05:33:21,034 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 05:33:21,035 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 05:33:21,035 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 05:33:21,036 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 05:33:21,036 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 05:33:21,036 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 05:33:21,038 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 05:33:21,038 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 05:33:21,039 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 05:33:21,039 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 05:33:21,039 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 05:33:21,040 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 05:33:21,040 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 05:33:21,040 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 05:33:21,041 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-19 05:33:21,041 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 05:33:21,041 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 05:33:21,041 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 05:33:21,042 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 05:33:21,042 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 05:33:21,042 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 05:33:21,043 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 05:33:21,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 05:33:21,047 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 05:33:21,048 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 05:33:21,048 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 05:33:21,048 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 05:33:21,048 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 05:33:21,048 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-19 05:33:21,049 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-19 05:33:21,049 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 05:33:21,049 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 05:33:21,049 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_26f0f633-e868-48d5-8f08-c3d7899a4192/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f0f633-e868-48d5-8f08-c3d7899a4192/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e97ea8fdd79cc88ea5d66529f91fae4bb4475970931b09c5966dea7f1229156f [2021-11-19 05:33:21,279 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 05:33:21,300 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 05:33:21,303 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 05:33:21,304 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 05:33:21,305 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 05:33:21,306 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f0f633-e868-48d5-8f08-c3d7899a4192/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i [2021-11-19 05:33:21,364 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f0f633-e868-48d5-8f08-c3d7899a4192/bin/uautomizer-ZXIjhQolGL/data/0d2aeb0e0/b787a80b9c094bed831a3f2921994b93/FLAGf13677d5a [2021-11-19 05:33:21,956 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 05:33:21,957 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f0f633-e868-48d5-8f08-c3d7899a4192/sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i [2021-11-19 05:33:21,980 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f0f633-e868-48d5-8f08-c3d7899a4192/bin/uautomizer-ZXIjhQolGL/data/0d2aeb0e0/b787a80b9c094bed831a3f2921994b93/FLAGf13677d5a [2021-11-19 05:33:22,205 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f0f633-e868-48d5-8f08-c3d7899a4192/bin/uautomizer-ZXIjhQolGL/data/0d2aeb0e0/b787a80b9c094bed831a3f2921994b93 [2021-11-19 05:33:22,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 05:33:22,212 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 05:33:22,215 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 05:33:22,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 05:33:22,219 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 05:33:22,220 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:33:22" (1/1) ... [2021-11-19 05:33:22,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2db6c675 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:33:22, skipping insertion in model container [2021-11-19 05:33:22,224 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:33:22" (1/1) ... [2021-11-19 05:33:22,232 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 05:33:22,282 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 05:33:22,721 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:33:22,734 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 05:33:22,776 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:33:22,842 INFO L208 MainTranslator]: Completed translation [2021-11-19 05:33:22,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:33:22 WrapperNode [2021-11-19 05:33:22,842 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 05:33:22,844 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 05:33:22,844 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 05:33:22,844 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 05:33:22,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:33:22" (1/1) ... [2021-11-19 05:33:22,878 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:33:22" (1/1) ... [2021-11-19 05:33:22,934 INFO L137 Inliner]: procedures = 261, calls = 23, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 65 [2021-11-19 05:33:22,934 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 05:33:22,935 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 05:33:22,935 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 05:33:22,936 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 05:33:22,945 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:33:22" (1/1) ... [2021-11-19 05:33:22,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:33:22" (1/1) ... [2021-11-19 05:33:22,962 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:33:22" (1/1) ... [2021-11-19 05:33:22,968 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:33:22" (1/1) ... [2021-11-19 05:33:22,988 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:33:22" (1/1) ... [2021-11-19 05:33:22,989 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:33:22" (1/1) ... [2021-11-19 05:33:23,004 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:33:22" (1/1) ... [2021-11-19 05:33:23,007 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 05:33:23,008 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 05:33:23,008 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 05:33:23,008 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 05:33:23,011 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:33:22" (1/1) ... [2021-11-19 05:33:23,019 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 05:33:23,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f0f633-e868-48d5-8f08-c3d7899a4192/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:33:23,054 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f0f633-e868-48d5-8f08-c3d7899a4192/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 05:33:23,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f0f633-e868-48d5-8f08-c3d7899a4192/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 05:33:23,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 05:33:23,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 05:33:23,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-19 05:33:23,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-19 05:33:23,110 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-19 05:33:23,110 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-19 05:33:23,110 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-19 05:33:23,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 05:33:23,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 05:33:23,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 05:33:23,113 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-19 05:33:23,249 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 05:33:23,251 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 05:33:23,603 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 05:33:23,613 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 05:33:23,624 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-19 05:33:23,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:33:23 BoogieIcfgContainer [2021-11-19 05:33:23,628 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 05:33:23,631 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 05:33:23,631 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 05:33:23,635 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 05:33:23,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:33:22" (1/3) ... [2021-11-19 05:33:23,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d4b271c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:33:23, skipping insertion in model container [2021-11-19 05:33:23,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:33:22" (2/3) ... [2021-11-19 05:33:23,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d4b271c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:33:23, skipping insertion in model container [2021-11-19 05:33:23,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:33:23" (3/3) ... [2021-11-19 05:33:23,640 INFO L111 eAbstractionObserver]: Analyzing ICFG 04-mutex_46-escape_nr.i [2021-11-19 05:33:23,647 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-19 05:33:23,647 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 05:33:23,648 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-19 05:33:23,648 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-19 05:33:23,701 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,701 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,701 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,702 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,702 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,702 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,703 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,703 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,703 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,704 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,704 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,704 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,704 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,705 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,705 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,705 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,706 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,706 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,706 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,707 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,707 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,707 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,707 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,708 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,708 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,708 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,708 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,709 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,709 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,709 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,710 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,710 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,710 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,710 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,711 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,711 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,711 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,712 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,712 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,712 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,713 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,713 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,713 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,713 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,714 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,714 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,714 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,715 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,715 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,715 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,716 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,716 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,716 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,716 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,717 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,717 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,717 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,718 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,718 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,718 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,718 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,719 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,719 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,719 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,719 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,720 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,720 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,720 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,721 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,721 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,721 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,721 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,722 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,722 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,722 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,723 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,723 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,723 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,723 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,724 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,724 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,724 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,725 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,725 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,725 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,725 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,726 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,726 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,726 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,727 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,727 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,727 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,728 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,728 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,728 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,729 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,729 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,729 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,729 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,730 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,730 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,730 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,730 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,731 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,731 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,731 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,732 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,732 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,736 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,736 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,736 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,737 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,737 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,737 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,738 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,738 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,738 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,738 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:33:23,744 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-11-19 05:33:23,797 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 05:33:23,805 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 05:33:23,806 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-11-19 05:33:23,820 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 101 places, 97 transitions, 202 flow [2021-11-19 05:33:23,871 INFO L129 PetriNetUnfolder]: 0/96 cut-off events. [2021-11-19 05:33:23,872 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-19 05:33:23,873 INFO L84 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 96 events. 0/96 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 63 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-11-19 05:33:23,874 INFO L82 GeneralOperation]: Start removeDead. Operand has 101 places, 97 transitions, 202 flow [2021-11-19 05:33:23,879 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 86 transitions, 175 flow [2021-11-19 05:33:23,896 INFO L129 PetriNetUnfolder]: 0/48 cut-off events. [2021-11-19 05:33:23,896 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-19 05:33:23,897 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 05:33:23,898 INFO L254 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] [2021-11-19 05:33:23,898 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-19 05:33:23,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:33:23,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1096582921, now seen corresponding path program 1 times [2021-11-19 05:33:23,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:33:23,916 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762736271] [2021-11-19 05:33:23,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:33:23,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:33:24,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:33:24,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:33:24,314 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:33:24,314 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762736271] [2021-11-19 05:33:24,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762736271] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:33:24,315 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:33:24,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-19 05:33:24,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803772799] [2021-11-19 05:33:24,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:33:24,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 05:33:24,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:33:24,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 05:33:24,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-19 05:33:24,376 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 97 [2021-11-19 05:33:24,388 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 86 transitions, 175 flow. Second operand has 6 states, 6 states have (on average 60.5) internal successors, (363), 6 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:24,389 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 05:33:24,389 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 97 [2021-11-19 05:33:24,391 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 05:33:24,937 INFO L129 PetriNetUnfolder]: 263/774 cut-off events. [2021-11-19 05:33:24,938 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-19 05:33:24,945 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1346 conditions, 774 events. 263/774 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 4096 event pairs, 158 based on Foata normal form. 0/693 useless extension candidates. Maximal degree in co-relation 1309. Up to 436 conditions per place. [2021-11-19 05:33:24,955 INFO L132 encePairwiseOnDemand]: 86/97 looper letters, 67 selfloop transitions, 22 changer transitions 0/140 dead transitions. [2021-11-19 05:33:24,955 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 140 transitions, 461 flow [2021-11-19 05:33:24,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 05:33:24,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-19 05:33:24,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 444 transitions. [2021-11-19 05:33:24,972 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7628865979381443 [2021-11-19 05:33:24,972 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 444 transitions. [2021-11-19 05:33:24,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 444 transitions. [2021-11-19 05:33:24,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 05:33:24,978 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 444 transitions. [2021-11-19 05:33:24,983 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 74.0) internal successors, (444), 6 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:24,990 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 97.0) internal successors, (679), 7 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:24,990 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 97.0) internal successors, (679), 7 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:24,992 INFO L186 Difference]: Start difference. First operand has 90 places, 86 transitions, 175 flow. Second operand 6 states and 444 transitions. [2021-11-19 05:33:24,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 140 transitions, 461 flow [2021-11-19 05:33:24,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 140 transitions, 460 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-19 05:33:25,002 INFO L242 Difference]: Finished difference. Result has 99 places, 107 transitions, 324 flow [2021-11-19 05:33:25,005 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=324, PETRI_PLACES=99, PETRI_TRANSITIONS=107} [2021-11-19 05:33:25,008 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 9 predicate places. [2021-11-19 05:33:25,009 INFO L470 AbstractCegarLoop]: Abstraction has has 99 places, 107 transitions, 324 flow [2021-11-19 05:33:25,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 60.5) internal successors, (363), 6 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:25,009 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 05:33:25,010 INFO L254 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] [2021-11-19 05:33:25,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 05:33:25,010 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-19 05:33:25,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:33:25,011 INFO L85 PathProgramCache]: Analyzing trace with hash -75234838, now seen corresponding path program 1 times [2021-11-19 05:33:25,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:33:25,011 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992955981] [2021-11-19 05:33:25,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:33:25,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:33:25,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:33:25,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:33:25,191 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:33:25,192 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992955981] [2021-11-19 05:33:25,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992955981] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:33:25,193 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:33:25,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-19 05:33:25,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917006706] [2021-11-19 05:33:25,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:33:25,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 05:33:25,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:33:25,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 05:33:25,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-19 05:33:25,198 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 97 [2021-11-19 05:33:25,199 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 107 transitions, 324 flow. Second operand has 6 states, 6 states have (on average 63.333333333333336) internal successors, (380), 6 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:25,199 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 05:33:25,199 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 97 [2021-11-19 05:33:25,199 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 05:33:25,699 INFO L129 PetriNetUnfolder]: 345/995 cut-off events. [2021-11-19 05:33:25,701 INFO L130 PetriNetUnfolder]: For 273/281 co-relation queries the response was YES. [2021-11-19 05:33:25,704 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2068 conditions, 995 events. 345/995 cut-off events. For 273/281 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 5733 event pairs, 126 based on Foata normal form. 0/906 useless extension candidates. Maximal degree in co-relation 2029. Up to 538 conditions per place. [2021-11-19 05:33:25,712 INFO L132 encePairwiseOnDemand]: 86/97 looper letters, 103 selfloop transitions, 26 changer transitions 0/181 dead transitions. [2021-11-19 05:33:25,713 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 181 transitions, 820 flow [2021-11-19 05:33:25,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 05:33:25,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-19 05:33:25,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 481 transitions. [2021-11-19 05:33:25,718 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8264604810996563 [2021-11-19 05:33:25,718 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 481 transitions. [2021-11-19 05:33:25,718 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 481 transitions. [2021-11-19 05:33:25,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 05:33:25,719 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 481 transitions. [2021-11-19 05:33:25,722 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 80.16666666666667) internal successors, (481), 6 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:25,725 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 97.0) internal successors, (679), 7 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:25,726 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 97.0) internal successors, (679), 7 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:25,726 INFO L186 Difference]: Start difference. First operand has 99 places, 107 transitions, 324 flow. Second operand 6 states and 481 transitions. [2021-11-19 05:33:25,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 181 transitions, 820 flow [2021-11-19 05:33:25,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 181 transitions, 820 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-11-19 05:33:25,736 INFO L242 Difference]: Finished difference. Result has 109 places, 128 transitions, 508 flow [2021-11-19 05:33:25,736 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=508, PETRI_PLACES=109, PETRI_TRANSITIONS=128} [2021-11-19 05:33:25,737 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 19 predicate places. [2021-11-19 05:33:25,737 INFO L470 AbstractCegarLoop]: Abstraction has has 109 places, 128 transitions, 508 flow [2021-11-19 05:33:25,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 63.333333333333336) internal successors, (380), 6 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:25,738 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 05:33:25,738 INFO L254 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] [2021-11-19 05:33:25,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-19 05:33:25,739 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-19 05:33:25,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:33:25,740 INFO L85 PathProgramCache]: Analyzing trace with hash -999688849, now seen corresponding path program 1 times [2021-11-19 05:33:25,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:33:25,740 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917776722] [2021-11-19 05:33:25,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:33:25,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:33:25,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:33:25,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:33:25,859 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:33:25,859 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917776722] [2021-11-19 05:33:25,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917776722] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:33:25,860 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:33:25,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-19 05:33:25,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046500129] [2021-11-19 05:33:25,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:33:25,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 05:33:25,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:33:25,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 05:33:25,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-19 05:33:25,863 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 97 [2021-11-19 05:33:25,864 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 128 transitions, 508 flow. Second operand has 6 states, 6 states have (on average 62.5) internal successors, (375), 6 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:25,864 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 05:33:25,865 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 97 [2021-11-19 05:33:25,865 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 05:33:26,318 INFO L129 PetriNetUnfolder]: 485/1315 cut-off events. [2021-11-19 05:33:26,318 INFO L130 PetriNetUnfolder]: For 772/785 co-relation queries the response was YES. [2021-11-19 05:33:26,323 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3236 conditions, 1315 events. 485/1315 cut-off events. For 772/785 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 7881 event pairs, 179 based on Foata normal form. 4/1223 useless extension candidates. Maximal degree in co-relation 3192. Up to 860 conditions per place. [2021-11-19 05:33:26,335 INFO L132 encePairwiseOnDemand]: 78/97 looper letters, 93 selfloop transitions, 69 changer transitions 4/216 dead transitions. [2021-11-19 05:33:26,335 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 216 transitions, 1168 flow [2021-11-19 05:33:26,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 05:33:26,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-19 05:33:26,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 474 transitions. [2021-11-19 05:33:26,338 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8144329896907216 [2021-11-19 05:33:26,339 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 474 transitions. [2021-11-19 05:33:26,339 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 474 transitions. [2021-11-19 05:33:26,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 05:33:26,339 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 474 transitions. [2021-11-19 05:33:26,342 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 79.0) internal successors, (474), 6 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:26,344 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 97.0) internal successors, (679), 7 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:26,345 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 97.0) internal successors, (679), 7 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:26,345 INFO L186 Difference]: Start difference. First operand has 109 places, 128 transitions, 508 flow. Second operand 6 states and 474 transitions. [2021-11-19 05:33:26,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 216 transitions, 1168 flow [2021-11-19 05:33:26,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 216 transitions, 1168 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-11-19 05:33:26,370 INFO L242 Difference]: Finished difference. Result has 119 places, 191 transitions, 1086 flow [2021-11-19 05:33:26,371 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=508, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1086, PETRI_PLACES=119, PETRI_TRANSITIONS=191} [2021-11-19 05:33:26,374 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 29 predicate places. [2021-11-19 05:33:26,374 INFO L470 AbstractCegarLoop]: Abstraction has has 119 places, 191 transitions, 1086 flow [2021-11-19 05:33:26,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 62.5) internal successors, (375), 6 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:26,375 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 05:33:26,377 INFO L254 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] [2021-11-19 05:33:26,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-19 05:33:26,378 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-19 05:33:26,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:33:26,379 INFO L85 PathProgramCache]: Analyzing trace with hash 135309586, now seen corresponding path program 1 times [2021-11-19 05:33:26,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:33:26,380 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615147558] [2021-11-19 05:33:26,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:33:26,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:33:26,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:33:26,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:33:26,600 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:33:26,601 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615147558] [2021-11-19 05:33:26,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615147558] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:33:26,601 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:33:26,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-19 05:33:26,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43889943] [2021-11-19 05:33:26,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:33:26,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 05:33:26,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:33:26,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 05:33:26,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-19 05:33:26,610 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 97 [2021-11-19 05:33:26,611 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 191 transitions, 1086 flow. Second operand has 6 states, 6 states have (on average 59.666666666666664) internal successors, (358), 6 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:26,611 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 05:33:26,611 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 97 [2021-11-19 05:33:26,611 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 05:33:27,224 INFO L129 PetriNetUnfolder]: 525/1407 cut-off events. [2021-11-19 05:33:27,224 INFO L130 PetriNetUnfolder]: For 1807/1823 co-relation queries the response was YES. [2021-11-19 05:33:27,232 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4443 conditions, 1407 events. 525/1407 cut-off events. For 1807/1823 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 8704 event pairs, 135 based on Foata normal form. 0/1352 useless extension candidates. Maximal degree in co-relation 4392. Up to 955 conditions per place. [2021-11-19 05:33:27,245 INFO L132 encePairwiseOnDemand]: 82/97 looper letters, 145 selfloop transitions, 67 changer transitions 0/262 dead transitions. [2021-11-19 05:33:27,246 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 262 transitions, 1936 flow [2021-11-19 05:33:27,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 05:33:27,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-19 05:33:27,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 433 transitions. [2021-11-19 05:33:27,248 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7439862542955327 [2021-11-19 05:33:27,249 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 433 transitions. [2021-11-19 05:33:27,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 433 transitions. [2021-11-19 05:33:27,249 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 05:33:27,250 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 433 transitions. [2021-11-19 05:33:27,252 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 72.16666666666667) internal successors, (433), 6 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:27,254 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 97.0) internal successors, (679), 7 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:27,254 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 97.0) internal successors, (679), 7 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:27,254 INFO L186 Difference]: Start difference. First operand has 119 places, 191 transitions, 1086 flow. Second operand 6 states and 433 transitions. [2021-11-19 05:33:27,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 262 transitions, 1936 flow [2021-11-19 05:33:27,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 262 transitions, 1880 flow, removed 28 selfloop flow, removed 0 redundant places. [2021-11-19 05:33:27,282 INFO L242 Difference]: Finished difference. Result has 129 places, 244 transitions, 1690 flow [2021-11-19 05:33:27,282 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=1036, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1690, PETRI_PLACES=129, PETRI_TRANSITIONS=244} [2021-11-19 05:33:27,284 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 39 predicate places. [2021-11-19 05:33:27,284 INFO L470 AbstractCegarLoop]: Abstraction has has 129 places, 244 transitions, 1690 flow [2021-11-19 05:33:27,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 59.666666666666664) internal successors, (358), 6 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:27,284 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 05:33:27,285 INFO L254 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] [2021-11-19 05:33:27,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-19 05:33:27,285 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-19 05:33:27,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:33:27,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1241412555, now seen corresponding path program 1 times [2021-11-19 05:33:27,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:33:27,286 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527926930] [2021-11-19 05:33:27,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:33:27,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:33:27,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:33:27,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:33:27,342 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:33:27,343 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527926930] [2021-11-19 05:33:27,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527926930] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:33:27,343 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:33:27,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 05:33:27,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893917981] [2021-11-19 05:33:27,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:33:27,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 05:33:27,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:33:27,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 05:33:27,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 05:33:27,346 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 97 [2021-11-19 05:33:27,346 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 244 transitions, 1690 flow. Second operand has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:27,347 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 05:33:27,347 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 97 [2021-11-19 05:33:27,347 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 05:33:27,430 INFO L129 PetriNetUnfolder]: 40/236 cut-off events. [2021-11-19 05:33:27,431 INFO L130 PetriNetUnfolder]: For 198/198 co-relation queries the response was YES. [2021-11-19 05:33:27,432 INFO L84 FinitePrefix]: Finished finitePrefix Result has 614 conditions, 236 events. 40/236 cut-off events. For 198/198 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 666 event pairs, 5 based on Foata normal form. 2/226 useless extension candidates. Maximal degree in co-relation 554. Up to 64 conditions per place. [2021-11-19 05:33:27,433 INFO L132 encePairwiseOnDemand]: 93/97 looper letters, 7 selfloop transitions, 4 changer transitions 0/104 dead transitions. [2021-11-19 05:33:27,433 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 104 transitions, 466 flow [2021-11-19 05:33:27,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 05:33:27,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-19 05:33:27,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 268 transitions. [2021-11-19 05:33:27,435 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9209621993127147 [2021-11-19 05:33:27,435 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 268 transitions. [2021-11-19 05:33:27,435 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 268 transitions. [2021-11-19 05:33:27,436 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 05:33:27,436 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 268 transitions. [2021-11-19 05:33:27,437 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:27,438 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:27,438 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:27,438 INFO L186 Difference]: Start difference. First operand has 129 places, 244 transitions, 1690 flow. Second operand 3 states and 268 transitions. [2021-11-19 05:33:27,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 104 transitions, 466 flow [2021-11-19 05:33:27,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 104 transitions, 340 flow, removed 33 selfloop flow, removed 30 redundant places. [2021-11-19 05:33:27,445 INFO L242 Difference]: Finished difference. Result has 98 places, 104 transitions, 326 flow [2021-11-19 05:33:27,445 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=326, PETRI_PLACES=98, PETRI_TRANSITIONS=104} [2021-11-19 05:33:27,448 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 8 predicate places. [2021-11-19 05:33:27,448 INFO L470 AbstractCegarLoop]: Abstraction has has 98 places, 104 transitions, 326 flow [2021-11-19 05:33:27,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:27,449 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 05:33:27,449 INFO L254 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] [2021-11-19 05:33:27,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-19 05:33:27,449 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-19 05:33:27,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:33:27,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1967552858, now seen corresponding path program 1 times [2021-11-19 05:33:27,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:33:27,451 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771971132] [2021-11-19 05:33:27,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:33:27,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:33:27,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:33:27,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:33:27,605 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:33:27,605 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771971132] [2021-11-19 05:33:27,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771971132] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:33:27,605 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:33:27,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-19 05:33:27,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565060638] [2021-11-19 05:33:27,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:33:27,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 05:33:27,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:33:27,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 05:33:27,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-19 05:33:27,614 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 97 [2021-11-19 05:33:27,615 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 104 transitions, 326 flow. Second operand has 6 states, 6 states have (on average 62.333333333333336) internal successors, (374), 6 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:27,615 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 05:33:27,615 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 97 [2021-11-19 05:33:27,615 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 05:33:27,992 INFO L129 PetriNetUnfolder]: 119/426 cut-off events. [2021-11-19 05:33:27,992 INFO L130 PetriNetUnfolder]: For 125/129 co-relation queries the response was YES. [2021-11-19 05:33:27,993 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1048 conditions, 426 events. 119/426 cut-off events. For 125/129 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1683 event pairs, 17 based on Foata normal form. 0/413 useless extension candidates. Maximal degree in co-relation 1005. Up to 187 conditions per place. [2021-11-19 05:33:27,996 INFO L132 encePairwiseOnDemand]: 87/97 looper letters, 71 selfloop transitions, 25 changer transitions 11/159 dead transitions. [2021-11-19 05:33:27,996 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 159 transitions, 746 flow [2021-11-19 05:33:27,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 05:33:27,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-19 05:33:27,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 435 transitions. [2021-11-19 05:33:27,998 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7474226804123711 [2021-11-19 05:33:27,999 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 435 transitions. [2021-11-19 05:33:27,999 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 435 transitions. [2021-11-19 05:33:27,999 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 05:33:27,999 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 435 transitions. [2021-11-19 05:33:28,001 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 72.5) internal successors, (435), 6 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:28,003 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 97.0) internal successors, (679), 7 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:28,003 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 97.0) internal successors, (679), 7 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:28,003 INFO L186 Difference]: Start difference. First operand has 98 places, 104 transitions, 326 flow. Second operand 6 states and 435 transitions. [2021-11-19 05:33:28,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 159 transitions, 746 flow [2021-11-19 05:33:28,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 159 transitions, 742 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-19 05:33:28,010 INFO L242 Difference]: Finished difference. Result has 107 places, 124 transitions, 538 flow [2021-11-19 05:33:28,010 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=538, PETRI_PLACES=107, PETRI_TRANSITIONS=124} [2021-11-19 05:33:28,013 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 17 predicate places. [2021-11-19 05:33:28,013 INFO L470 AbstractCegarLoop]: Abstraction has has 107 places, 124 transitions, 538 flow [2021-11-19 05:33:28,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 62.333333333333336) internal successors, (374), 6 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:28,014 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 05:33:28,014 INFO L254 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] [2021-11-19 05:33:28,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-19 05:33:28,014 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-19 05:33:28,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:33:28,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1025735787, now seen corresponding path program 1 times [2021-11-19 05:33:28,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:33:28,016 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784738920] [2021-11-19 05:33:28,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:33:28,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:33:28,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:33:28,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:33:28,360 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:33:28,360 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784738920] [2021-11-19 05:33:28,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784738920] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:33:28,360 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:33:28,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-19 05:33:28,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999077415] [2021-11-19 05:33:28,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:33:28,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-19 05:33:28,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:33:28,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-19 05:33:28,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-11-19 05:33:28,363 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 97 [2021-11-19 05:33:28,364 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 124 transitions, 538 flow. Second operand has 13 states, 13 states have (on average 48.76923076923077) internal successors, (634), 13 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:28,364 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 05:33:28,364 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 97 [2021-11-19 05:33:28,364 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 05:33:28,913 INFO L129 PetriNetUnfolder]: 166/544 cut-off events. [2021-11-19 05:33:28,914 INFO L130 PetriNetUnfolder]: For 488/496 co-relation queries the response was YES. [2021-11-19 05:33:28,915 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1578 conditions, 544 events. 166/544 cut-off events. For 488/496 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2209 event pairs, 2 based on Foata normal form. 11/553 useless extension candidates. Maximal degree in co-relation 1527. Up to 195 conditions per place. [2021-11-19 05:33:28,919 INFO L132 encePairwiseOnDemand]: 86/97 looper letters, 111 selfloop transitions, 30 changer transitions 17/198 dead transitions. [2021-11-19 05:33:28,919 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 198 transitions, 1200 flow [2021-11-19 05:33:28,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-19 05:33:28,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-19 05:33:28,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 613 transitions. [2021-11-19 05:33:28,923 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5745079662605436 [2021-11-19 05:33:28,923 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 613 transitions. [2021-11-19 05:33:28,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 613 transitions. [2021-11-19 05:33:28,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 05:33:28,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 613 transitions. [2021-11-19 05:33:28,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 55.72727272727273) internal successors, (613), 11 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:28,929 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 97.0) internal successors, (1164), 12 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:28,930 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 97.0) internal successors, (1164), 12 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:28,930 INFO L186 Difference]: Start difference. First operand has 107 places, 124 transitions, 538 flow. Second operand 11 states and 613 transitions. [2021-11-19 05:33:28,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 198 transitions, 1200 flow [2021-11-19 05:33:28,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 198 transitions, 1182 flow, removed 9 selfloop flow, removed 0 redundant places. [2021-11-19 05:33:28,941 INFO L242 Difference]: Finished difference. Result has 116 places, 120 transitions, 556 flow [2021-11-19 05:33:28,942 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=516, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=556, PETRI_PLACES=116, PETRI_TRANSITIONS=120} [2021-11-19 05:33:28,942 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 26 predicate places. [2021-11-19 05:33:28,943 INFO L470 AbstractCegarLoop]: Abstraction has has 116 places, 120 transitions, 556 flow [2021-11-19 05:33:28,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 48.76923076923077) internal successors, (634), 13 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:28,944 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 05:33:28,944 INFO L254 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] [2021-11-19 05:33:28,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-19 05:33:28,944 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-19 05:33:28,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:33:28,945 INFO L85 PathProgramCache]: Analyzing trace with hash -402826150, now seen corresponding path program 1 times [2021-11-19 05:33:28,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:33:28,945 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262734158] [2021-11-19 05:33:28,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:33:28,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:33:28,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:33:29,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:33:29,409 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:33:29,410 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262734158] [2021-11-19 05:33:29,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262734158] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:33:29,410 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:33:29,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-19 05:33:29,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546590975] [2021-11-19 05:33:29,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:33:29,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-19 05:33:29,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:33:29,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-19 05:33:29,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-11-19 05:33:29,413 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 97 [2021-11-19 05:33:29,414 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 120 transitions, 556 flow. Second operand has 13 states, 13 states have (on average 50.69230769230769) internal successors, (659), 13 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:29,414 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 05:33:29,414 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 97 [2021-11-19 05:33:29,415 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 05:33:30,252 INFO L129 PetriNetUnfolder]: 152/520 cut-off events. [2021-11-19 05:33:30,252 INFO L130 PetriNetUnfolder]: For 548/548 co-relation queries the response was YES. [2021-11-19 05:33:30,254 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1611 conditions, 520 events. 152/520 cut-off events. For 548/548 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2157 event pairs, 4 based on Foata normal form. 5/523 useless extension candidates. Maximal degree in co-relation 1556. Up to 277 conditions per place. [2021-11-19 05:33:30,258 INFO L132 encePairwiseOnDemand]: 83/97 looper letters, 105 selfloop transitions, 27 changer transitions 13/188 dead transitions. [2021-11-19 05:33:30,258 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 188 transitions, 1108 flow [2021-11-19 05:33:30,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-19 05:33:30,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-19 05:33:30,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 648 transitions. [2021-11-19 05:33:30,263 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6073102155576382 [2021-11-19 05:33:30,263 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 648 transitions. [2021-11-19 05:33:30,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 648 transitions. [2021-11-19 05:33:30,264 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 05:33:30,264 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 648 transitions. [2021-11-19 05:33:30,267 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 58.90909090909091) internal successors, (648), 11 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:30,271 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 97.0) internal successors, (1164), 12 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:30,271 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 97.0) internal successors, (1164), 12 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:30,271 INFO L186 Difference]: Start difference. First operand has 116 places, 120 transitions, 556 flow. Second operand 11 states and 648 transitions. [2021-11-19 05:33:30,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 188 transitions, 1108 flow [2021-11-19 05:33:30,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 188 transitions, 968 flow, removed 15 selfloop flow, removed 11 redundant places. [2021-11-19 05:33:30,286 INFO L242 Difference]: Finished difference. Result has 120 places, 128 transitions, 640 flow [2021-11-19 05:33:30,286 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=458, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=640, PETRI_PLACES=120, PETRI_TRANSITIONS=128} [2021-11-19 05:33:30,289 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 30 predicate places. [2021-11-19 05:33:30,289 INFO L470 AbstractCegarLoop]: Abstraction has has 120 places, 128 transitions, 640 flow [2021-11-19 05:33:30,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 50.69230769230769) internal successors, (659), 13 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:30,290 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 05:33:30,290 INFO L254 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] [2021-11-19 05:33:30,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-19 05:33:30,290 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-19 05:33:30,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:33:30,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1295413922, now seen corresponding path program 2 times [2021-11-19 05:33:30,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:33:30,292 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798973183] [2021-11-19 05:33:30,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:33:30,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:33:30,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:33:30,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:33:30,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:33:30,808 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798973183] [2021-11-19 05:33:30,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798973183] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:33:30,808 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:33:30,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-19 05:33:30,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531659576] [2021-11-19 05:33:30,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:33:30,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-19 05:33:30,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:33:30,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-19 05:33:30,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-11-19 05:33:30,811 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 97 [2021-11-19 05:33:30,812 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 128 transitions, 640 flow. Second operand has 13 states, 13 states have (on average 50.69230769230769) internal successors, (659), 13 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:30,812 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 05:33:30,812 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 97 [2021-11-19 05:33:30,812 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 05:33:31,651 INFO L129 PetriNetUnfolder]: 151/510 cut-off events. [2021-11-19 05:33:31,651 INFO L130 PetriNetUnfolder]: For 530/531 co-relation queries the response was YES. [2021-11-19 05:33:31,653 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1620 conditions, 510 events. 151/510 cut-off events. For 530/531 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1970 event pairs, 43 based on Foata normal form. 5/512 useless extension candidates. Maximal degree in co-relation 1559. Up to 228 conditions per place. [2021-11-19 05:33:31,657 INFO L132 encePairwiseOnDemand]: 83/97 looper letters, 86 selfloop transitions, 34 changer transitions 14/177 dead transitions. [2021-11-19 05:33:31,657 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 177 transitions, 1057 flow [2021-11-19 05:33:31,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-19 05:33:31,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-19 05:33:31,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 636 transitions. [2021-11-19 05:33:31,661 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5960637300843487 [2021-11-19 05:33:31,661 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 636 transitions. [2021-11-19 05:33:31,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 636 transitions. [2021-11-19 05:33:31,661 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 05:33:31,662 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 636 transitions. [2021-11-19 05:33:31,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 57.81818181818182) internal successors, (636), 11 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:31,666 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 97.0) internal successors, (1164), 12 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:31,667 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 97.0) internal successors, (1164), 12 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:31,667 INFO L186 Difference]: Start difference. First operand has 120 places, 128 transitions, 640 flow. Second operand 11 states and 636 transitions. [2021-11-19 05:33:31,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 177 transitions, 1057 flow [2021-11-19 05:33:31,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 177 transitions, 1042 flow, removed 2 selfloop flow, removed 5 redundant places. [2021-11-19 05:33:31,680 INFO L242 Difference]: Finished difference. Result has 127 places, 128 transitions, 710 flow [2021-11-19 05:33:31,681 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=629, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=710, PETRI_PLACES=127, PETRI_TRANSITIONS=128} [2021-11-19 05:33:31,683 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 37 predicate places. [2021-11-19 05:33:31,683 INFO L470 AbstractCegarLoop]: Abstraction has has 127 places, 128 transitions, 710 flow [2021-11-19 05:33:31,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 50.69230769230769) internal successors, (659), 13 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:31,684 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 05:33:31,684 INFO L254 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] [2021-11-19 05:33:31,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-19 05:33:31,684 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-19 05:33:31,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:33:31,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1010613782, now seen corresponding path program 3 times [2021-11-19 05:33:31,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:33:31,686 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95725044] [2021-11-19 05:33:31,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:33:31,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:33:31,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:33:31,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:33:31,945 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:33:31,946 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95725044] [2021-11-19 05:33:31,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95725044] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:33:31,946 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:33:31,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-19 05:33:31,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703695604] [2021-11-19 05:33:31,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:33:31,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-19 05:33:31,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:33:31,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-19 05:33:31,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-11-19 05:33:31,949 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 97 [2021-11-19 05:33:31,950 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 128 transitions, 710 flow. Second operand has 12 states, 12 states have (on average 50.916666666666664) internal successors, (611), 12 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:31,950 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 05:33:31,951 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 97 [2021-11-19 05:33:31,951 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 05:33:32,607 INFO L129 PetriNetUnfolder]: 199/647 cut-off events. [2021-11-19 05:33:32,607 INFO L130 PetriNetUnfolder]: For 1425/1425 co-relation queries the response was YES. [2021-11-19 05:33:32,610 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2267 conditions, 647 events. 199/647 cut-off events. For 1425/1425 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 3019 event pairs, 11 based on Foata normal form. 10/656 useless extension candidates. Maximal degree in co-relation 2204. Up to 280 conditions per place. [2021-11-19 05:33:32,615 INFO L132 encePairwiseOnDemand]: 87/97 looper letters, 84 selfloop transitions, 5 changer transitions 113/245 dead transitions. [2021-11-19 05:33:32,615 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 245 transitions, 1724 flow [2021-11-19 05:33:32,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-19 05:33:32,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-19 05:33:32,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 653 transitions. [2021-11-19 05:33:32,619 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6119962511715089 [2021-11-19 05:33:32,619 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 653 transitions. [2021-11-19 05:33:32,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 653 transitions. [2021-11-19 05:33:32,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 05:33:32,620 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 653 transitions. [2021-11-19 05:33:32,623 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 59.36363636363637) internal successors, (653), 11 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:32,626 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 97.0) internal successors, (1164), 12 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:32,627 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 97.0) internal successors, (1164), 12 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:32,627 INFO L186 Difference]: Start difference. First operand has 127 places, 128 transitions, 710 flow. Second operand 11 states and 653 transitions. [2021-11-19 05:33:32,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 245 transitions, 1724 flow [2021-11-19 05:33:32,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 245 transitions, 1618 flow, removed 2 selfloop flow, removed 10 redundant places. [2021-11-19 05:33:32,645 INFO L242 Difference]: Finished difference. Result has 130 places, 112 transitions, 531 flow [2021-11-19 05:33:32,646 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=638, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=531, PETRI_PLACES=130, PETRI_TRANSITIONS=112} [2021-11-19 05:33:32,646 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 40 predicate places. [2021-11-19 05:33:32,646 INFO L470 AbstractCegarLoop]: Abstraction has has 130 places, 112 transitions, 531 flow [2021-11-19 05:33:32,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 50.916666666666664) internal successors, (611), 12 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:32,647 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 05:33:32,647 INFO L254 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] [2021-11-19 05:33:32,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-19 05:33:32,648 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-19 05:33:32,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:33:32,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1655887854, now seen corresponding path program 4 times [2021-11-19 05:33:32,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:33:32,649 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541005252] [2021-11-19 05:33:32,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:33:32,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:33:32,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:33:33,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:33:33,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:33:33,058 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541005252] [2021-11-19 05:33:33,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541005252] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:33:33,059 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:33:33,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-19 05:33:33,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147437025] [2021-11-19 05:33:33,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:33:33,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-19 05:33:33,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:33:33,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-19 05:33:33,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-11-19 05:33:33,062 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 97 [2021-11-19 05:33:33,063 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 112 transitions, 531 flow. Second operand has 13 states, 13 states have (on average 50.69230769230769) internal successors, (659), 13 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:33,063 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 05:33:33,063 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 97 [2021-11-19 05:33:33,064 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 05:33:33,897 INFO L129 PetriNetUnfolder]: 130/457 cut-off events. [2021-11-19 05:33:33,897 INFO L130 PetriNetUnfolder]: For 843/843 co-relation queries the response was YES. [2021-11-19 05:33:33,899 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1474 conditions, 457 events. 130/457 cut-off events. For 843/843 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1688 event pairs, 37 based on Foata normal form. 5/459 useless extension candidates. Maximal degree in co-relation 1408. Up to 180 conditions per place. [2021-11-19 05:33:33,903 INFO L132 encePairwiseOnDemand]: 86/97 looper letters, 91 selfloop transitions, 23 changer transitions 21/178 dead transitions. [2021-11-19 05:33:33,903 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 178 transitions, 1037 flow [2021-11-19 05:33:33,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-19 05:33:33,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-11-19 05:33:33,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 688 transitions. [2021-11-19 05:33:33,906 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5910652920962199 [2021-11-19 05:33:33,907 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 688 transitions. [2021-11-19 05:33:33,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 688 transitions. [2021-11-19 05:33:33,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 05:33:33,908 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 688 transitions. [2021-11-19 05:33:33,910 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 57.333333333333336) internal successors, (688), 12 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:33,913 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 97.0) internal successors, (1261), 13 states have internal predecessors, (1261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:33,914 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 97.0) internal successors, (1261), 13 states have internal predecessors, (1261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:33,914 INFO L186 Difference]: Start difference. First operand has 130 places, 112 transitions, 531 flow. Second operand 12 states and 688 transitions. [2021-11-19 05:33:33,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 178 transitions, 1037 flow [2021-11-19 05:33:33,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 178 transitions, 957 flow, removed 23 selfloop flow, removed 10 redundant places. [2021-11-19 05:33:33,927 INFO L242 Difference]: Finished difference. Result has 130 places, 116 transitions, 563 flow [2021-11-19 05:33:33,927 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=466, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=563, PETRI_PLACES=130, PETRI_TRANSITIONS=116} [2021-11-19 05:33:33,928 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 40 predicate places. [2021-11-19 05:33:33,928 INFO L470 AbstractCegarLoop]: Abstraction has has 130 places, 116 transitions, 563 flow [2021-11-19 05:33:33,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 50.69230769230769) internal successors, (659), 13 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:33,929 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 05:33:33,929 INFO L254 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] [2021-11-19 05:33:33,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-19 05:33:33,929 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-19 05:33:33,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:33:33,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1380995228, now seen corresponding path program 5 times [2021-11-19 05:33:33,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:33:33,930 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33646450] [2021-11-19 05:33:33,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:33:33,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:33:33,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:33:34,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:33:34,207 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:33:34,207 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33646450] [2021-11-19 05:33:34,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33646450] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:33:34,207 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:33:34,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-19 05:33:34,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66031430] [2021-11-19 05:33:34,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:33:34,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-19 05:33:34,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:33:34,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-19 05:33:34,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-11-19 05:33:34,210 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 97 [2021-11-19 05:33:34,211 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 116 transitions, 563 flow. Second operand has 13 states, 13 states have (on average 50.69230769230769) internal successors, (659), 13 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:34,211 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 05:33:34,211 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 97 [2021-11-19 05:33:34,212 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 05:33:34,881 INFO L129 PetriNetUnfolder]: 192/652 cut-off events. [2021-11-19 05:33:34,881 INFO L130 PetriNetUnfolder]: For 1636/1636 co-relation queries the response was YES. [2021-11-19 05:33:34,884 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2186 conditions, 652 events. 192/652 cut-off events. For 1636/1636 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2932 event pairs, 58 based on Foata normal form. 10/657 useless extension candidates. Maximal degree in co-relation 2122. Up to 248 conditions per place. [2021-11-19 05:33:34,888 INFO L132 encePairwiseOnDemand]: 87/97 looper letters, 108 selfloop transitions, 7 changer transitions 69/227 dead transitions. [2021-11-19 05:33:34,888 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 227 transitions, 1504 flow [2021-11-19 05:33:34,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-19 05:33:34,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-19 05:33:34,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 643 transitions. [2021-11-19 05:33:34,892 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6026241799437676 [2021-11-19 05:33:34,892 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 643 transitions. [2021-11-19 05:33:34,892 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 643 transitions. [2021-11-19 05:33:34,893 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 05:33:34,893 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 643 transitions. [2021-11-19 05:33:34,895 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 58.45454545454545) internal successors, (643), 11 states have internal predecessors, (643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:34,898 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 97.0) internal successors, (1164), 12 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:34,899 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 97.0) internal successors, (1164), 12 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:34,899 INFO L186 Difference]: Start difference. First operand has 130 places, 116 transitions, 563 flow. Second operand 11 states and 643 transitions. [2021-11-19 05:33:34,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 227 transitions, 1504 flow [2021-11-19 05:33:34,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 227 transitions, 1426 flow, removed 6 selfloop flow, removed 9 redundant places. [2021-11-19 05:33:34,916 INFO L242 Difference]: Finished difference. Result has 135 places, 116 transitions, 562 flow [2021-11-19 05:33:34,916 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=509, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=562, PETRI_PLACES=135, PETRI_TRANSITIONS=116} [2021-11-19 05:33:34,917 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 45 predicate places. [2021-11-19 05:33:34,917 INFO L470 AbstractCegarLoop]: Abstraction has has 135 places, 116 transitions, 562 flow [2021-11-19 05:33:34,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 50.69230769230769) internal successors, (659), 13 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:34,918 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 05:33:34,918 INFO L254 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] [2021-11-19 05:33:34,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-19 05:33:34,919 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-19 05:33:34,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:33:34,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1599746302, now seen corresponding path program 6 times [2021-11-19 05:33:34,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:33:34,920 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740989604] [2021-11-19 05:33:34,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:33:34,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:33:34,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:33:35,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:33:35,220 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:33:35,220 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740989604] [2021-11-19 05:33:35,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740989604] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:33:35,220 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:33:35,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-19 05:33:35,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734695489] [2021-11-19 05:33:35,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:33:35,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-19 05:33:35,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:33:35,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-19 05:33:35,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-11-19 05:33:35,223 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 97 [2021-11-19 05:33:35,224 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 116 transitions, 562 flow. Second operand has 13 states, 13 states have (on average 50.69230769230769) internal successors, (659), 13 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:35,224 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 05:33:35,224 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 97 [2021-11-19 05:33:35,224 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 05:33:36,006 INFO L129 PetriNetUnfolder]: 195/707 cut-off events. [2021-11-19 05:33:36,006 INFO L130 PetriNetUnfolder]: For 1545/1545 co-relation queries the response was YES. [2021-11-19 05:33:36,012 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2349 conditions, 707 events. 195/707 cut-off events. For 1545/1545 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 3439 event pairs, 67 based on Foata normal form. 10/712 useless extension candidates. Maximal degree in co-relation 2281. Up to 232 conditions per place. [2021-11-19 05:33:36,017 INFO L132 encePairwiseOnDemand]: 86/97 looper letters, 93 selfloop transitions, 17 changer transitions 55/208 dead transitions. [2021-11-19 05:33:36,017 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 208 transitions, 1398 flow [2021-11-19 05:33:36,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-19 05:33:36,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-19 05:33:36,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 633 transitions. [2021-11-19 05:33:36,021 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5932521087160263 [2021-11-19 05:33:36,022 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 633 transitions. [2021-11-19 05:33:36,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 633 transitions. [2021-11-19 05:33:36,023 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 05:33:36,023 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 633 transitions. [2021-11-19 05:33:36,026 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 57.54545454545455) internal successors, (633), 11 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:36,029 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 97.0) internal successors, (1164), 12 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:36,030 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 97.0) internal successors, (1164), 12 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:36,030 INFO L186 Difference]: Start difference. First operand has 135 places, 116 transitions, 562 flow. Second operand 11 states and 633 transitions. [2021-11-19 05:33:36,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 208 transitions, 1398 flow [2021-11-19 05:33:36,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 208 transitions, 1318 flow, removed 31 selfloop flow, removed 8 redundant places. [2021-11-19 05:33:36,050 INFO L242 Difference]: Finished difference. Result has 139 places, 120 transitions, 642 flow [2021-11-19 05:33:36,050 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=520, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=642, PETRI_PLACES=139, PETRI_TRANSITIONS=120} [2021-11-19 05:33:36,051 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 49 predicate places. [2021-11-19 05:33:36,052 INFO L470 AbstractCegarLoop]: Abstraction has has 139 places, 120 transitions, 642 flow [2021-11-19 05:33:36,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 50.69230769230769) internal successors, (659), 13 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:36,052 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 05:33:36,052 INFO L254 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] [2021-11-19 05:33:36,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-19 05:33:36,053 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-19 05:33:36,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:33:36,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1641038928, now seen corresponding path program 7 times [2021-11-19 05:33:36,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:33:36,054 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926154000] [2021-11-19 05:33:36,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:33:36,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:33:36,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:33:36,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:33:36,411 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:33:36,411 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926154000] [2021-11-19 05:33:36,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926154000] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:33:36,411 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:33:36,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-19 05:33:36,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899162159] [2021-11-19 05:33:36,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:33:36,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-19 05:33:36,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:33:36,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-19 05:33:36,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-19 05:33:36,413 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 97 [2021-11-19 05:33:36,414 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 120 transitions, 642 flow. Second operand has 13 states, 13 states have (on average 50.69230769230769) internal successors, (659), 13 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:36,414 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 05:33:36,414 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 97 [2021-11-19 05:33:36,414 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 05:33:37,215 INFO L129 PetriNetUnfolder]: 176/670 cut-off events. [2021-11-19 05:33:37,215 INFO L130 PetriNetUnfolder]: For 1797/1797 co-relation queries the response was YES. [2021-11-19 05:33:37,219 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2280 conditions, 670 events. 176/670 cut-off events. For 1797/1797 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3197 event pairs, 78 based on Foata normal form. 10/674 useless extension candidates. Maximal degree in co-relation 2210. Up to 320 conditions per place. [2021-11-19 05:33:37,223 INFO L132 encePairwiseOnDemand]: 87/97 looper letters, 103 selfloop transitions, 9 changer transitions 55/210 dead transitions. [2021-11-19 05:33:37,223 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 210 transitions, 1431 flow [2021-11-19 05:33:37,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-19 05:33:37,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-19 05:33:37,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 637 transitions. [2021-11-19 05:33:37,227 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5970009372071228 [2021-11-19 05:33:37,227 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 637 transitions. [2021-11-19 05:33:37,227 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 637 transitions. [2021-11-19 05:33:37,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 05:33:37,228 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 637 transitions. [2021-11-19 05:33:37,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 57.90909090909091) internal successors, (637), 11 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:37,232 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 97.0) internal successors, (1164), 12 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:37,233 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 97.0) internal successors, (1164), 12 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:37,233 INFO L186 Difference]: Start difference. First operand has 139 places, 120 transitions, 642 flow. Second operand 11 states and 637 transitions. [2021-11-19 05:33:37,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 210 transitions, 1431 flow [2021-11-19 05:33:37,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 210 transitions, 1366 flow, removed 21 selfloop flow, removed 7 redundant places. [2021-11-19 05:33:37,252 INFO L242 Difference]: Finished difference. Result has 143 places, 119 transitions, 636 flow [2021-11-19 05:33:37,253 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=604, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=636, PETRI_PLACES=143, PETRI_TRANSITIONS=119} [2021-11-19 05:33:37,254 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 53 predicate places. [2021-11-19 05:33:37,254 INFO L470 AbstractCegarLoop]: Abstraction has has 143 places, 119 transitions, 636 flow [2021-11-19 05:33:37,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 50.69230769230769) internal successors, (659), 13 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:37,255 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 05:33:37,255 INFO L254 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] [2021-11-19 05:33:37,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-19 05:33:37,255 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-19 05:33:37,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:33:37,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1127657548, now seen corresponding path program 8 times [2021-11-19 05:33:37,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:33:37,257 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220593797] [2021-11-19 05:33:37,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:33:37,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:33:37,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:33:37,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:33:37,537 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:33:37,537 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220593797] [2021-11-19 05:33:37,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220593797] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:33:37,537 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:33:37,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-19 05:33:37,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380199699] [2021-11-19 05:33:37,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:33:37,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-19 05:33:37,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:33:37,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-19 05:33:37,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-19 05:33:37,540 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 97 [2021-11-19 05:33:37,541 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 119 transitions, 636 flow. Second operand has 13 states, 13 states have (on average 50.69230769230769) internal successors, (659), 13 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:37,541 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 05:33:37,541 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 97 [2021-11-19 05:33:37,541 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 05:33:38,247 INFO L129 PetriNetUnfolder]: 175/681 cut-off events. [2021-11-19 05:33:38,247 INFO L130 PetriNetUnfolder]: For 1775/1775 co-relation queries the response was YES. [2021-11-19 05:33:38,251 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2289 conditions, 681 events. 175/681 cut-off events. For 1775/1775 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3294 event pairs, 59 based on Foata normal form. 10/686 useless extension candidates. Maximal degree in co-relation 2218. Up to 206 conditions per place. [2021-11-19 05:33:38,255 INFO L132 encePairwiseOnDemand]: 86/97 looper letters, 84 selfloop transitions, 12 changer transitions 77/216 dead transitions. [2021-11-19 05:33:38,255 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 216 transitions, 1525 flow [2021-11-19 05:33:38,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-19 05:33:38,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-19 05:33:38,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 636 transitions. [2021-11-19 05:33:38,258 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5960637300843487 [2021-11-19 05:33:38,258 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 636 transitions. [2021-11-19 05:33:38,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 636 transitions. [2021-11-19 05:33:38,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 05:33:38,259 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 636 transitions. [2021-11-19 05:33:38,263 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 57.81818181818182) internal successors, (636), 11 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:38,265 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 97.0) internal successors, (1164), 12 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:38,266 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 97.0) internal successors, (1164), 12 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:38,266 INFO L186 Difference]: Start difference. First operand has 143 places, 119 transitions, 636 flow. Second operand 11 states and 636 transitions. [2021-11-19 05:33:38,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 216 transitions, 1525 flow [2021-11-19 05:33:38,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 216 transitions, 1457 flow, removed 24 selfloop flow, removed 10 redundant places. [2021-11-19 05:33:38,283 INFO L242 Difference]: Finished difference. Result has 146 places, 114 transitions, 625 flow [2021-11-19 05:33:38,284 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=592, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=625, PETRI_PLACES=146, PETRI_TRANSITIONS=114} [2021-11-19 05:33:38,285 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 56 predicate places. [2021-11-19 05:33:38,285 INFO L470 AbstractCegarLoop]: Abstraction has has 146 places, 114 transitions, 625 flow [2021-11-19 05:33:38,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 50.69230769230769) internal successors, (659), 13 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:38,286 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 05:33:38,286 INFO L254 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] [2021-11-19 05:33:38,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-19 05:33:38,287 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-19 05:33:38,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:33:38,287 INFO L85 PathProgramCache]: Analyzing trace with hash -228658196, now seen corresponding path program 9 times [2021-11-19 05:33:38,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:33:38,288 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126456396] [2021-11-19 05:33:38,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:33:38,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:33:38,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:33:38,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:33:38,666 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:33:38,666 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126456396] [2021-11-19 05:33:38,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126456396] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:33:38,667 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:33:38,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-19 05:33:38,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993256416] [2021-11-19 05:33:38,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:33:38,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-19 05:33:38,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:33:38,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-19 05:33:38,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-11-19 05:33:38,670 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 97 [2021-11-19 05:33:38,671 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 114 transitions, 625 flow. Second operand has 13 states, 13 states have (on average 50.69230769230769) internal successors, (659), 13 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:38,676 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 05:33:38,677 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 97 [2021-11-19 05:33:38,677 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 05:33:39,297 INFO L129 PetriNetUnfolder]: 98/450 cut-off events. [2021-11-19 05:33:39,297 INFO L130 PetriNetUnfolder]: For 1444/1444 co-relation queries the response was YES. [2021-11-19 05:33:39,300 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1534 conditions, 450 events. 98/450 cut-off events. For 1444/1444 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1847 event pairs, 39 based on Foata normal form. 10/457 useless extension candidates. Maximal degree in co-relation 1461. Up to 237 conditions per place. [2021-11-19 05:33:39,303 INFO L132 encePairwiseOnDemand]: 87/97 looper letters, 59 selfloop transitions, 6 changer transitions 62/170 dead transitions. [2021-11-19 05:33:39,303 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 170 transitions, 1121 flow [2021-11-19 05:33:39,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-19 05:33:39,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-11-19 05:33:39,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 670 transitions. [2021-11-19 05:33:39,306 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5756013745704467 [2021-11-19 05:33:39,306 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 670 transitions. [2021-11-19 05:33:39,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 670 transitions. [2021-11-19 05:33:39,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 05:33:39,307 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 670 transitions. [2021-11-19 05:33:39,309 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 55.833333333333336) internal successors, (670), 12 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:39,312 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 97.0) internal successors, (1261), 13 states have internal predecessors, (1261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:39,313 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 97.0) internal successors, (1261), 13 states have internal predecessors, (1261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:39,314 INFO L186 Difference]: Start difference. First operand has 146 places, 114 transitions, 625 flow. Second operand 12 states and 670 transitions. [2021-11-19 05:33:39,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 170 transitions, 1121 flow [2021-11-19 05:33:39,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 170 transitions, 1036 flow, removed 23 selfloop flow, removed 13 redundant places. [2021-11-19 05:33:39,329 INFO L242 Difference]: Finished difference. Result has 143 places, 106 transitions, 488 flow [2021-11-19 05:33:39,330 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=559, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=488, PETRI_PLACES=143, PETRI_TRANSITIONS=106} [2021-11-19 05:33:39,331 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 53 predicate places. [2021-11-19 05:33:39,332 INFO L470 AbstractCegarLoop]: Abstraction has has 143 places, 106 transitions, 488 flow [2021-11-19 05:33:39,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 50.69230769230769) internal successors, (659), 13 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:39,332 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 05:33:39,333 INFO L254 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] [2021-11-19 05:33:39,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-19 05:33:39,333 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-19 05:33:39,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:33:39,334 INFO L85 PathProgramCache]: Analyzing trace with hash -467117878, now seen corresponding path program 10 times [2021-11-19 05:33:39,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:33:39,336 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391267719] [2021-11-19 05:33:39,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:33:39,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:33:39,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:33:39,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:33:39,688 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:33:39,689 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391267719] [2021-11-19 05:33:39,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391267719] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:33:39,689 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:33:39,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-19 05:33:39,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111153690] [2021-11-19 05:33:39,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:33:39,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-19 05:33:39,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:33:39,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-19 05:33:39,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-11-19 05:33:39,691 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 97 [2021-11-19 05:33:39,692 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 106 transitions, 488 flow. Second operand has 13 states, 13 states have (on average 50.69230769230769) internal successors, (659), 13 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:39,692 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 05:33:39,693 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 97 [2021-11-19 05:33:39,693 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 05:33:40,358 INFO L129 PetriNetUnfolder]: 84/401 cut-off events. [2021-11-19 05:33:40,358 INFO L130 PetriNetUnfolder]: For 864/864 co-relation queries the response was YES. [2021-11-19 05:33:40,360 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1269 conditions, 401 events. 84/401 cut-off events. For 864/864 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1670 event pairs, 25 based on Foata normal form. 10/409 useless extension candidates. Maximal degree in co-relation 1201. Up to 75 conditions per place. [2021-11-19 05:33:40,362 INFO L132 encePairwiseOnDemand]: 86/97 looper letters, 70 selfloop transitions, 13 changer transitions 47/173 dead transitions. [2021-11-19 05:33:40,362 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 173 transitions, 1132 flow [2021-11-19 05:33:40,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-19 05:33:40,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-19 05:33:40,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 615 transitions. [2021-11-19 05:33:40,364 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5763823805060918 [2021-11-19 05:33:40,364 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 615 transitions. [2021-11-19 05:33:40,364 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 615 transitions. [2021-11-19 05:33:40,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 05:33:40,365 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 615 transitions. [2021-11-19 05:33:40,367 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 55.90909090909091) internal successors, (615), 11 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:40,370 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 97.0) internal successors, (1164), 12 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:40,371 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 97.0) internal successors, (1164), 12 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:40,371 INFO L186 Difference]: Start difference. First operand has 143 places, 106 transitions, 488 flow. Second operand 11 states and 615 transitions. [2021-11-19 05:33:40,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 173 transitions, 1132 flow [2021-11-19 05:33:40,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 173 transitions, 1030 flow, removed 41 selfloop flow, removed 14 redundant places. [2021-11-19 05:33:40,381 INFO L242 Difference]: Finished difference. Result has 130 places, 101 transitions, 439 flow [2021-11-19 05:33:40,381 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=439, PETRI_PLACES=130, PETRI_TRANSITIONS=101} [2021-11-19 05:33:40,382 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 40 predicate places. [2021-11-19 05:33:40,382 INFO L470 AbstractCegarLoop]: Abstraction has has 130 places, 101 transitions, 439 flow [2021-11-19 05:33:40,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 50.69230769230769) internal successors, (659), 13 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:40,382 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 05:33:40,383 INFO L254 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] [2021-11-19 05:33:40,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-19 05:33:40,383 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-19 05:33:40,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:33:40,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1141135434, now seen corresponding path program 11 times [2021-11-19 05:33:40,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:33:40,384 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970113635] [2021-11-19 05:33:40,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:33:40,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:33:40,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:33:40,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:33:40,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:33:40,732 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970113635] [2021-11-19 05:33:40,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970113635] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:33:40,732 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:33:40,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-19 05:33:40,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401271954] [2021-11-19 05:33:40,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:33:40,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-19 05:33:40,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:33:40,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-19 05:33:40,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-11-19 05:33:40,735 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 97 [2021-11-19 05:33:40,736 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 101 transitions, 439 flow. Second operand has 13 states, 13 states have (on average 50.69230769230769) internal successors, (659), 13 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:40,736 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 05:33:40,736 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 97 [2021-11-19 05:33:40,736 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 05:33:41,369 INFO L129 PetriNetUnfolder]: 52/316 cut-off events. [2021-11-19 05:33:41,369 INFO L130 PetriNetUnfolder]: For 547/547 co-relation queries the response was YES. [2021-11-19 05:33:41,370 INFO L84 FinitePrefix]: Finished finitePrefix Result has 947 conditions, 316 events. 52/316 cut-off events. For 547/547 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1141 event pairs, 27 based on Foata normal form. 5/319 useless extension candidates. Maximal degree in co-relation 885. Up to 92 conditions per place. [2021-11-19 05:33:41,373 INFO L132 encePairwiseOnDemand]: 86/97 looper letters, 59 selfloop transitions, 16 changer transitions 22/140 dead transitions. [2021-11-19 05:33:41,373 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 140 transitions, 794 flow [2021-11-19 05:33:41,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-19 05:33:41,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-19 05:33:41,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 612 transitions. [2021-11-19 05:33:41,376 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5735707591377694 [2021-11-19 05:33:41,376 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 612 transitions. [2021-11-19 05:33:41,376 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 612 transitions. [2021-11-19 05:33:41,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 05:33:41,377 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 612 transitions. [2021-11-19 05:33:41,378 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 55.63636363636363) internal successors, (612), 11 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:41,380 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 97.0) internal successors, (1164), 12 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:41,381 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 97.0) internal successors, (1164), 12 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:41,381 INFO L186 Difference]: Start difference. First operand has 130 places, 101 transitions, 439 flow. Second operand 11 states and 612 transitions. [2021-11-19 05:33:41,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 140 transitions, 794 flow [2021-11-19 05:33:41,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 140 transitions, 717 flow, removed 19 selfloop flow, removed 12 redundant places. [2021-11-19 05:33:41,389 INFO L242 Difference]: Finished difference. Result has 130 places, 103 transitions, 446 flow [2021-11-19 05:33:41,390 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=446, PETRI_PLACES=130, PETRI_TRANSITIONS=103} [2021-11-19 05:33:41,391 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 40 predicate places. [2021-11-19 05:33:41,391 INFO L470 AbstractCegarLoop]: Abstraction has has 130 places, 103 transitions, 446 flow [2021-11-19 05:33:41,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 50.69230769230769) internal successors, (659), 13 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:41,392 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 05:33:41,392 INFO L254 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] [2021-11-19 05:33:41,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-19 05:33:41,392 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-19 05:33:41,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:33:41,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1862920642, now seen corresponding path program 12 times [2021-11-19 05:33:41,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:33:41,393 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331016896] [2021-11-19 05:33:41,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:33:41,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:33:41,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:33:41,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:33:41,799 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:33:41,799 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331016896] [2021-11-19 05:33:41,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331016896] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:33:41,799 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:33:41,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-19 05:33:41,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025548866] [2021-11-19 05:33:41,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:33:41,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-19 05:33:41,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:33:41,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-19 05:33:41,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-11-19 05:33:41,802 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 97 [2021-11-19 05:33:41,803 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 103 transitions, 446 flow. Second operand has 13 states, 13 states have (on average 50.69230769230769) internal successors, (659), 13 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:41,803 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 05:33:41,803 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 97 [2021-11-19 05:33:41,803 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 05:33:42,499 INFO L129 PetriNetUnfolder]: 56/326 cut-off events. [2021-11-19 05:33:42,500 INFO L130 PetriNetUnfolder]: For 539/539 co-relation queries the response was YES. [2021-11-19 05:33:42,501 INFO L84 FinitePrefix]: Finished finitePrefix Result has 972 conditions, 326 events. 56/326 cut-off events. For 539/539 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1193 event pairs, 28 based on Foata normal form. 10/334 useless extension candidates. Maximal degree in co-relation 911. Up to 90 conditions per place. [2021-11-19 05:33:42,503 INFO L132 encePairwiseOnDemand]: 86/97 looper letters, 52 selfloop transitions, 11 changer transitions 40/146 dead transitions. [2021-11-19 05:33:42,503 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 146 transitions, 845 flow [2021-11-19 05:33:42,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-19 05:33:42,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-11-19 05:33:42,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 657 transitions. [2021-11-19 05:33:42,505 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5644329896907216 [2021-11-19 05:33:42,505 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 657 transitions. [2021-11-19 05:33:42,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 657 transitions. [2021-11-19 05:33:42,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 05:33:42,506 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 657 transitions. [2021-11-19 05:33:42,507 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 54.75) internal successors, (657), 12 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:42,509 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 97.0) internal successors, (1261), 13 states have internal predecessors, (1261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:42,510 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 97.0) internal successors, (1261), 13 states have internal predecessors, (1261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:42,510 INFO L186 Difference]: Start difference. First operand has 130 places, 103 transitions, 446 flow. Second operand 12 states and 657 transitions. [2021-11-19 05:33:42,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 146 transitions, 845 flow [2021-11-19 05:33:42,514 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 146 transitions, 816 flow, removed 2 selfloop flow, removed 7 redundant places. [2021-11-19 05:33:42,517 INFO L242 Difference]: Finished difference. Result has 138 places, 99 transitions, 416 flow [2021-11-19 05:33:42,517 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=417, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=416, PETRI_PLACES=138, PETRI_TRANSITIONS=99} [2021-11-19 05:33:42,518 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 48 predicate places. [2021-11-19 05:33:42,518 INFO L470 AbstractCegarLoop]: Abstraction has has 138 places, 99 transitions, 416 flow [2021-11-19 05:33:42,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 50.69230769230769) internal successors, (659), 13 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:42,519 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 05:33:42,519 INFO L254 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] [2021-11-19 05:33:42,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-19 05:33:42,519 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-19 05:33:42,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:33:42,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1460015274, now seen corresponding path program 13 times [2021-11-19 05:33:42,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:33:42,520 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558213703] [2021-11-19 05:33:42,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:33:42,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:33:42,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:33:42,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:33:42,878 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:33:42,878 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558213703] [2021-11-19 05:33:42,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558213703] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:33:42,879 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:33:42,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-19 05:33:42,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40330885] [2021-11-19 05:33:42,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:33:42,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-19 05:33:42,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:33:42,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-19 05:33:42,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-19 05:33:42,882 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 97 [2021-11-19 05:33:42,883 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 99 transitions, 416 flow. Second operand has 13 states, 13 states have (on average 50.69230769230769) internal successors, (659), 13 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:42,883 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 05:33:42,883 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 97 [2021-11-19 05:33:42,883 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 05:33:43,512 INFO L129 PetriNetUnfolder]: 34/221 cut-off events. [2021-11-19 05:33:43,513 INFO L130 PetriNetUnfolder]: For 398/398 co-relation queries the response was YES. [2021-11-19 05:33:43,514 INFO L84 FinitePrefix]: Finished finitePrefix Result has 660 conditions, 221 events. 34/221 cut-off events. For 398/398 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 554 event pairs, 4 based on Foata normal form. 10/231 useless extension candidates. Maximal degree in co-relation 595. Up to 52 conditions per place. [2021-11-19 05:33:43,515 INFO L132 encePairwiseOnDemand]: 86/97 looper letters, 47 selfloop transitions, 9 changer transitions 47/146 dead transitions. [2021-11-19 05:33:43,515 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 146 transitions, 808 flow [2021-11-19 05:33:43,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-19 05:33:43,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-11-19 05:33:43,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 709 transitions. [2021-11-19 05:33:43,518 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5622521808088818 [2021-11-19 05:33:43,518 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 709 transitions. [2021-11-19 05:33:43,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 709 transitions. [2021-11-19 05:33:43,519 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 05:33:43,519 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 709 transitions. [2021-11-19 05:33:43,520 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 54.53846153846154) internal successors, (709), 13 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:43,523 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 97.0) internal successors, (1358), 14 states have internal predecessors, (1358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:43,523 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 97.0) internal successors, (1358), 14 states have internal predecessors, (1358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:43,524 INFO L186 Difference]: Start difference. First operand has 138 places, 99 transitions, 416 flow. Second operand 13 states and 709 transitions. [2021-11-19 05:33:43,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 146 transitions, 808 flow [2021-11-19 05:33:43,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 146 transitions, 728 flow, removed 17 selfloop flow, removed 18 redundant places. [2021-11-19 05:33:43,530 INFO L242 Difference]: Finished difference. Result has 130 places, 92 transitions, 320 flow [2021-11-19 05:33:43,530 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=347, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=320, PETRI_PLACES=130, PETRI_TRANSITIONS=92} [2021-11-19 05:33:43,531 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 40 predicate places. [2021-11-19 05:33:43,531 INFO L470 AbstractCegarLoop]: Abstraction has has 130 places, 92 transitions, 320 flow [2021-11-19 05:33:43,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 50.69230769230769) internal successors, (659), 13 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:43,532 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 05:33:43,532 INFO L254 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] [2021-11-19 05:33:43,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-19 05:33:43,532 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-19 05:33:43,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:33:43,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1347335166, now seen corresponding path program 14 times [2021-11-19 05:33:43,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:33:43,533 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124027051] [2021-11-19 05:33:43,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:33:43,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:33:43,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:33:43,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:33:43,875 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:33:43,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124027051] [2021-11-19 05:33:43,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124027051] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:33:43,875 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:33:43,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-19 05:33:43,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669405723] [2021-11-19 05:33:43,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:33:43,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-19 05:33:43,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:33:43,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-19 05:33:43,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-11-19 05:33:43,877 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 97 [2021-11-19 05:33:43,879 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 92 transitions, 320 flow. Second operand has 13 states, 13 states have (on average 50.69230769230769) internal successors, (659), 13 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:43,879 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 05:33:43,879 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 97 [2021-11-19 05:33:43,879 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 05:33:44,343 INFO L129 PetriNetUnfolder]: 13/131 cut-off events. [2021-11-19 05:33:44,343 INFO L130 PetriNetUnfolder]: For 187/187 co-relation queries the response was YES. [2021-11-19 05:33:44,344 INFO L84 FinitePrefix]: Finished finitePrefix Result has 337 conditions, 131 events. 13/131 cut-off events. For 187/187 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 119 event pairs, 0 based on Foata normal form. 10/141 useless extension candidates. Maximal degree in co-relation 319. Up to 30 conditions per place. [2021-11-19 05:33:44,344 INFO L132 encePairwiseOnDemand]: 87/97 looper letters, 0 selfloop transitions, 0 changer transitions 111/111 dead transitions. [2021-11-19 05:33:44,344 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 111 transitions, 524 flow [2021-11-19 05:33:44,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-19 05:33:44,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-11-19 05:33:44,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 636 transitions. [2021-11-19 05:33:44,350 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5463917525773195 [2021-11-19 05:33:44,350 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 636 transitions. [2021-11-19 05:33:44,350 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 636 transitions. [2021-11-19 05:33:44,350 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 05:33:44,350 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 636 transitions. [2021-11-19 05:33:44,351 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 53.0) internal successors, (636), 12 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:44,353 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 97.0) internal successors, (1261), 13 states have internal predecessors, (1261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:44,354 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 97.0) internal successors, (1261), 13 states have internal predecessors, (1261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:44,354 INFO L186 Difference]: Start difference. First operand has 130 places, 92 transitions, 320 flow. Second operand 12 states and 636 transitions. [2021-11-19 05:33:44,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 111 transitions, 524 flow [2021-11-19 05:33:44,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 111 transitions, 462 flow, removed 12 selfloop flow, removed 16 redundant places. [2021-11-19 05:33:44,358 INFO L242 Difference]: Finished difference. Result has 116 places, 0 transitions, 0 flow [2021-11-19 05:33:44,358 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=0, PETRI_PLACES=116, PETRI_TRANSITIONS=0} [2021-11-19 05:33:44,359 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 26 predicate places. [2021-11-19 05:33:44,359 INFO L470 AbstractCegarLoop]: Abstraction has has 116 places, 0 transitions, 0 flow [2021-11-19 05:33:44,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 50.69230769230769) internal successors, (659), 13 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:33:44,363 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2021-11-19 05:33:44,364 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2021-11-19 05:33:44,364 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2021-11-19 05:33:44,364 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (4 of 8 remaining) [2021-11-19 05:33:44,364 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2021-11-19 05:33:44,365 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2021-11-19 05:33:44,365 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2021-11-19 05:33:44,365 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2021-11-19 05:33:44,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-19 05:33:44,370 INFO L732 BasicCegarLoop]: Path program histogram: [14, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:33:44,376 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-19 05:33:44,376 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 05:33:44,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:33:44 BasicIcfg [2021-11-19 05:33:44,380 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 05:33:44,381 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 05:33:44,381 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 05:33:44,381 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 05:33:44,382 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:33:23" (3/4) ... [2021-11-19 05:33:44,385 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-19 05:33:44,392 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2021-11-19 05:33:44,398 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-11-19 05:33:44,399 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-19 05:33:44,399 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-19 05:33:44,439 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f0f633-e868-48d5-8f08-c3d7899a4192/bin/uautomizer-ZXIjhQolGL/witness.graphml [2021-11-19 05:33:44,439 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 05:33:44,440 INFO L158 Benchmark]: Toolchain (without parser) took 22227.72ms. Allocated memory was 111.1MB in the beginning and 255.9MB in the end (delta: 144.7MB). Free memory was 79.7MB in the beginning and 89.0MB in the end (delta: -9.4MB). Peak memory consumption was 135.9MB. Max. memory is 16.1GB. [2021-11-19 05:33:44,440 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 111.1MB. Free memory was 66.5MB in the beginning and 66.4MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 05:33:44,441 INFO L158 Benchmark]: CACSL2BoogieTranslator took 628.04ms. Allocated memory is still 111.1MB. Free memory was 79.4MB in the beginning and 70.4MB in the end (delta: 9.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-19 05:33:44,441 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.74ms. Allocated memory is still 111.1MB. Free memory was 70.4MB in the beginning and 67.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 05:33:44,442 INFO L158 Benchmark]: Boogie Preprocessor took 72.12ms. Allocated memory is still 111.1MB. Free memory was 67.9MB in the beginning and 66.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 05:33:44,443 INFO L158 Benchmark]: RCFGBuilder took 620.58ms. Allocated memory was 111.1MB in the beginning and 140.5MB in the end (delta: 29.4MB). Free memory was 66.2MB in the beginning and 113.5MB in the end (delta: -47.2MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. [2021-11-19 05:33:44,443 INFO L158 Benchmark]: TraceAbstraction took 20749.65ms. Allocated memory was 140.5MB in the beginning and 255.9MB in the end (delta: 115.3MB). Free memory was 113.5MB in the beginning and 91.1MB in the end (delta: 22.3MB). Peak memory consumption was 139.8MB. Max. memory is 16.1GB. [2021-11-19 05:33:44,444 INFO L158 Benchmark]: Witness Printer took 58.13ms. Allocated memory is still 255.9MB. Free memory was 91.1MB in the beginning and 89.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 05:33:44,446 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 111.1MB. Free memory was 66.5MB in the beginning and 66.4MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 628.04ms. Allocated memory is still 111.1MB. Free memory was 79.4MB in the beginning and 70.4MB in the end (delta: 9.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.74ms. Allocated memory is still 111.1MB. Free memory was 70.4MB in the beginning and 67.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.12ms. Allocated memory is still 111.1MB. Free memory was 67.9MB in the beginning and 66.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 620.58ms. Allocated memory was 111.1MB in the beginning and 140.5MB in the end (delta: 29.4MB). Free memory was 66.2MB in the beginning and 113.5MB in the end (delta: -47.2MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. * TraceAbstraction took 20749.65ms. Allocated memory was 140.5MB in the beginning and 255.9MB in the end (delta: 115.3MB). Free memory was 113.5MB in the beginning and 91.1MB in the end (delta: 22.3MB). Peak memory consumption was 139.8MB. Max. memory is 16.1GB. * Witness Printer took 58.13ms. Allocated memory is still 255.9MB. Free memory was 91.1MB in the beginning and 89.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 931]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 931]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 933]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 922]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 922]: 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 3 procedures, 126 locations, 8 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: 20.6s, OverallIterations: 21, TraceHistogramMax: 1, PathProgramHistogramMax: 14, EmptinessCheckTime: 0.0s, AutomataDifference: 13.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2074 SdHoareTripleChecker+Valid, 6.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2074 mSDsluCounter, 766 SdHoareTripleChecker+Invalid, 5.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 397 mSDsCounter, 1114 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6582 IncrementalHoareTripleChecker+Invalid, 7696 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1114 mSolverCounterUnsat, 374 mSDtfsCounter, 6582 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 385 GetRequests, 22 SyntacticMatches, 52 SemanticMatches, 311 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 892 ImplicationChecksByTransitivity, 5.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1690occurred in iteration=4, InterpolantAutomatonStates: 204, 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, 0.3s SatisfiabilityAnalysisTime, 5.9s InterpolantComputationTime, 1347 NumberOfCodeBlocks, 1347 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1326 ConstructedInterpolants, 0 QuantifiedInterpolants, 15947 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 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 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-11-19 05:33:44,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f0f633-e868-48d5-8f08-c3d7899a4192/bin/uautomizer-ZXIjhQolGL/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