./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-lit/qw2004-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b9cc9e2-01e7-4428-9cd0-ff4eeaad06e3/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b9cc9e2-01e7-4428-9cd0-ff4eeaad06e3/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b9cc9e2-01e7-4428-9cd0-ff4eeaad06e3/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b9cc9e2-01e7-4428-9cd0-ff4eeaad06e3/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-lit/qw2004-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b9cc9e2-01e7-4428-9cd0-ff4eeaad06e3/bin/uautomizer-DrprNOufMa/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b9cc9e2-01e7-4428-9cd0-ff4eeaad06e3/bin/uautomizer-DrprNOufMa --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 a0f042164bf78d3595348b117153fa7346585efa21c060e488a9879023a64e1b --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 18:36:03,976 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 18:36:03,977 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 18:36:03,999 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 18:36:03,999 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 18:36:04,000 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 18:36:04,002 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 18:36:04,003 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 18:36:04,005 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 18:36:04,006 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 18:36:04,007 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 18:36:04,008 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 18:36:04,008 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 18:36:04,009 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 18:36:04,010 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 18:36:04,011 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 18:36:04,012 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 18:36:04,013 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 18:36:04,014 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 18:36:04,016 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 18:36:04,017 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 18:36:04,019 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 18:36:04,020 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 18:36:04,021 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 18:36:04,023 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 18:36:04,024 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 18:36:04,024 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 18:36:04,025 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 18:36:04,025 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 18:36:04,026 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 18:36:04,027 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 18:36:04,027 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 18:36:04,028 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 18:36:04,029 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 18:36:04,029 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 18:36:04,030 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 18:36:04,030 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 18:36:04,030 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 18:36:04,030 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 18:36:04,031 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 18:36:04,031 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 18:36:04,032 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b9cc9e2-01e7-4428-9cd0-ff4eeaad06e3/bin/uautomizer-DrprNOufMa/config/svcomp-DataRace-32bit-Automizer_Default.epf [2021-12-06 18:36:04,050 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 18:36:04,050 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 18:36:04,050 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 18:36:04,050 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 18:36:04,051 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 18:36:04,051 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 18:36:04,051 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 18:36:04,051 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 18:36:04,051 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 18:36:04,052 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 18:36:04,052 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 18:36:04,052 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 18:36:04,052 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 18:36:04,052 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 18:36:04,052 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 18:36:04,052 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 18:36:04,052 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 18:36:04,052 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 18:36:04,053 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-12-06 18:36:04,053 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 18:36:04,053 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 18:36:04,053 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 18:36:04,053 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 18:36:04,053 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 18:36:04,053 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 18:36:04,053 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 18:36:04,053 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 18:36:04,054 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 18:36:04,054 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 18:36:04,054 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 18:36:04,054 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 18:36:04,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 18:36:04,054 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 18:36:04,054 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 18:36:04,054 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 18:36:04,054 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 18:36:04,055 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_9b9cc9e2-01e7-4428-9cd0-ff4eeaad06e3/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b9cc9e2-01e7-4428-9cd0-ff4eeaad06e3/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a0f042164bf78d3595348b117153fa7346585efa21c060e488a9879023a64e1b [2021-12-06 18:36:04,226 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 18:36:04,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 18:36:04,244 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 18:36:04,245 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 18:36:04,246 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 18:36:04,247 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b9cc9e2-01e7-4428-9cd0-ff4eeaad06e3/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/pthread-lit/qw2004-2.i [2021-12-06 18:36:04,298 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b9cc9e2-01e7-4428-9cd0-ff4eeaad06e3/bin/uautomizer-DrprNOufMa/data/d6be74989/d93eb4dfe5a945d3a76da3f893e73ed9/FLAG9df93192f [2021-12-06 18:36:04,710 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 18:36:04,711 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b9cc9e2-01e7-4428-9cd0-ff4eeaad06e3/sv-benchmarks/c/pthread-lit/qw2004-2.i [2021-12-06 18:36:04,721 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b9cc9e2-01e7-4428-9cd0-ff4eeaad06e3/bin/uautomizer-DrprNOufMa/data/d6be74989/d93eb4dfe5a945d3a76da3f893e73ed9/FLAG9df93192f [2021-12-06 18:36:04,731 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b9cc9e2-01e7-4428-9cd0-ff4eeaad06e3/bin/uautomizer-DrprNOufMa/data/d6be74989/d93eb4dfe5a945d3a76da3f893e73ed9 [2021-12-06 18:36:04,732 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 18:36:04,733 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 18:36:04,734 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 18:36:04,735 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 18:36:04,737 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 18:36:04,738 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:36:04" (1/1) ... [2021-12-06 18:36:04,738 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b13036b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:36:04, skipping insertion in model container [2021-12-06 18:36:04,739 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:36:04" (1/1) ... [2021-12-06 18:36:04,743 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 18:36:04,770 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 18:36:04,975 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b9cc9e2-01e7-4428-9cd0-ff4eeaad06e3/sv-benchmarks/c/pthread-lit/qw2004-2.i[30003,30016] [2021-12-06 18:36:04,991 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:36:04,997 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 18:36:05,021 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b9cc9e2-01e7-4428-9cd0-ff4eeaad06e3/sv-benchmarks/c/pthread-lit/qw2004-2.i[30003,30016] [2021-12-06 18:36:05,027 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:36:05,052 INFO L208 MainTranslator]: Completed translation [2021-12-06 18:36:05,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:36:05 WrapperNode [2021-12-06 18:36:05,052 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 18:36:05,053 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 18:36:05,053 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 18:36:05,053 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 18:36:05,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:36:05" (1/1) ... [2021-12-06 18:36:05,069 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:36:05" (1/1) ... [2021-12-06 18:36:05,089 INFO L137 Inliner]: procedures = 175, calls = 32, calls flagged for inlining = 9, calls inlined = 10, statements flattened = 172 [2021-12-06 18:36:05,089 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 18:36:05,090 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 18:36:05,090 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 18:36:05,090 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 18:36:05,096 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:36:05" (1/1) ... [2021-12-06 18:36:05,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:36:05" (1/1) ... [2021-12-06 18:36:05,099 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:36:05" (1/1) ... [2021-12-06 18:36:05,099 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:36:05" (1/1) ... [2021-12-06 18:36:05,104 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:36:05" (1/1) ... [2021-12-06 18:36:05,105 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:36:05" (1/1) ... [2021-12-06 18:36:05,107 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:36:05" (1/1) ... [2021-12-06 18:36:05,110 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 18:36:05,110 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 18:36:05,110 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 18:36:05,111 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 18:36:05,111 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:36:05" (1/1) ... [2021-12-06 18:36:05,119 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 18:36:05,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b9cc9e2-01e7-4428-9cd0-ff4eeaad06e3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:36:05,143 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b9cc9e2-01e7-4428-9cd0-ff4eeaad06e3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 18:36:05,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b9cc9e2-01e7-4428-9cd0-ff4eeaad06e3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 18:36:05,173 INFO L130 BoogieDeclarations]: Found specification of procedure BCSP_PnpStop [2021-12-06 18:36:05,173 INFO L138 BoogieDeclarations]: Found implementation of procedure BCSP_PnpStop [2021-12-06 18:36:05,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 18:36:05,174 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-12-06 18:36:05,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 18:36:05,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 18:36:05,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 18:36:05,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 18:36:05,174 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-12-06 18:36:05,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 18:36:05,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 18:36:05,175 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-06 18:36:05,255 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 18:36:05,256 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 18:36:05,442 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 18:36:05,495 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 18:36:05,495 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 18:36:05,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:36:05 BoogieIcfgContainer [2021-12-06 18:36:05,497 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 18:36:05,499 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 18:36:05,499 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 18:36:05,502 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 18:36:05,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 06:36:04" (1/3) ... [2021-12-06 18:36:05,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@493c94a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:36:05, skipping insertion in model container [2021-12-06 18:36:05,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:36:05" (2/3) ... [2021-12-06 18:36:05,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@493c94a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:36:05, skipping insertion in model container [2021-12-06 18:36:05,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:36:05" (3/3) ... [2021-12-06 18:36:05,504 INFO L111 eAbstractionObserver]: Analyzing ICFG qw2004-2.i [2021-12-06 18:36:05,508 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-06 18:36:05,508 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 18:36:05,508 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2021-12-06 18:36:05,508 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-06 18:36:05,530 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,530 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,530 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,530 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,530 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,531 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,531 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,531 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,531 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,531 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,531 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,531 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,531 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~nondet7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,531 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,532 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,532 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~nondet7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,532 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,532 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,532 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,532 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,532 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,532 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,532 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,532 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,533 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,533 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,533 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,533 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,533 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,533 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,533 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,533 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,533 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,533 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,534 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,534 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,534 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,534 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,534 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,534 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,534 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,534 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,534 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,535 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,535 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,535 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,535 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,535 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,535 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,535 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,535 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,535 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,536 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,536 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,536 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,536 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,536 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,536 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,536 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,536 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,536 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,536 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,537 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~nondet7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,537 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~nondet7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,537 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~nondet7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,537 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~nondet7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,537 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_~lse~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,537 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_~lse~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,537 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_~lse~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,537 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,538 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_~lse~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,538 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,538 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,538 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,538 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,538 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,538 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,538 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,538 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,538 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,539 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,539 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,539 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,539 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,539 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,539 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,539 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,539 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,540 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,540 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,540 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,540 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,540 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,540 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,540 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,540 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,543 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,543 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,543 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,543 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,543 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,543 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,544 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,544 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,544 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~nondet7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,544 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,544 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_~lse~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,544 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,544 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,544 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,545 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,545 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:36:05,545 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-12-06 18:36:05,585 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 18:36:05,591 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 [2021-12-06 18:36:05,591 INFO L340 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2021-12-06 18:36:05,601 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 157 places, 159 transitions, 323 flow [2021-12-06 18:36:05,642 INFO L129 PetriNetUnfolder]: 6/158 cut-off events. [2021-12-06 18:36:05,642 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-06 18:36:05,647 INFO L84 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 158 events. 6/158 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 204 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 113. Up to 2 conditions per place. [2021-12-06 18:36:05,647 INFO L82 GeneralOperation]: Start removeDead. Operand has 157 places, 159 transitions, 323 flow [2021-12-06 18:36:05,652 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 156 places, 158 transitions, 319 flow [2021-12-06 18:36:05,655 INFO L129 PetriNetUnfolder]: 0/21 cut-off events. [2021-12-06 18:36:05,656 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-06 18:36:05,656 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:36:05,656 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] [2021-12-06 18:36:05,657 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-12-06 18:36:05,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:36:05,661 INFO L85 PathProgramCache]: Analyzing trace with hash 340496940, now seen corresponding path program 1 times [2021-12-06 18:36:05,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:36:05,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725915115] [2021-12-06 18:36:05,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:36:05,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:36:05,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:36:05,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:36:05,789 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:36:05,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725915115] [2021-12-06 18:36:05,789 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725915115] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:36:05,789 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:36:05,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 18:36:05,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673084730] [2021-12-06 18:36:05,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:36:05,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:36:05,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:36:05,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:36:05,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:36:05,821 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 159 [2021-12-06 18:36:05,824 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 158 transitions, 319 flow. Second operand has 3 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:36:05,824 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:36:05,824 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 159 [2021-12-06 18:36:05,825 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:36:05,918 INFO L129 PetriNetUnfolder]: 30/378 cut-off events. [2021-12-06 18:36:05,918 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-06 18:36:05,921 INFO L84 FinitePrefix]: Finished finitePrefix Result has 438 conditions, 378 events. 30/378 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1543 event pairs, 14 based on Foata normal form. 10/350 useless extension candidates. Maximal degree in co-relation 383. Up to 54 conditions per place. [2021-12-06 18:36:05,924 INFO L132 encePairwiseOnDemand]: 141/159 looper letters, 13 selfloop transitions, 2 changer transitions 0/141 dead transitions. [2021-12-06 18:36:05,924 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 141 transitions, 315 flow [2021-12-06 18:36:05,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:36:05,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-06 18:36:05,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 412 transitions. [2021-12-06 18:36:05,937 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8637316561844863 [2021-12-06 18:36:05,938 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 412 transitions. [2021-12-06 18:36:05,938 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 412 transitions. [2021-12-06 18:36:05,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:36:05,942 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 412 transitions. [2021-12-06 18:36:05,945 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 137.33333333333334) internal successors, (412), 3 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:36:05,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 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) [2021-12-06 18:36:05,951 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 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) [2021-12-06 18:36:05,953 INFO L186 Difference]: Start difference. First operand has 156 places, 158 transitions, 319 flow. Second operand 3 states and 412 transitions. [2021-12-06 18:36:05,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 141 transitions, 315 flow [2021-12-06 18:36:05,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 141 transitions, 314 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-06 18:36:05,962 INFO L242 Difference]: Finished difference. Result has 142 places, 141 transitions, 288 flow [2021-12-06 18:36:05,964 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=288, PETRI_PLACES=142, PETRI_TRANSITIONS=141} [2021-12-06 18:36:05,968 INFO L334 CegarLoopForPetriNet]: 156 programPoint places, -14 predicate places. [2021-12-06 18:36:05,968 INFO L470 AbstractCegarLoop]: Abstraction has has 142 places, 141 transitions, 288 flow [2021-12-06 18:36:05,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:36:05,969 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:36:05,969 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] [2021-12-06 18:36:05,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 18:36:05,970 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-12-06 18:36:05,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:36:05,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1742999048, now seen corresponding path program 1 times [2021-12-06 18:36:05,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:36:05,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785381240] [2021-12-06 18:36:05,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:36:05,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:36:05,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:36:06,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:36:06,018 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:36:06,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785381240] [2021-12-06 18:36:06,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785381240] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:36:06,018 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:36:06,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 18:36:06,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610876872] [2021-12-06 18:36:06,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:36:06,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:36:06,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:36:06,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:36:06,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:36:06,021 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 159 [2021-12-06 18:36:06,022 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 141 transitions, 288 flow. Second operand has 3 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:36:06,022 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:36:06,022 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 159 [2021-12-06 18:36:06,022 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:36:06,090 INFO L129 PetriNetUnfolder]: 30/377 cut-off events. [2021-12-06 18:36:06,090 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-06 18:36:06,092 INFO L84 FinitePrefix]: Finished finitePrefix Result has 439 conditions, 377 events. 30/377 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1556 event pairs, 14 based on Foata normal form. 0/340 useless extension candidates. Maximal degree in co-relation 411. Up to 54 conditions per place. [2021-12-06 18:36:06,094 INFO L132 encePairwiseOnDemand]: 156/159 looper letters, 13 selfloop transitions, 2 changer transitions 0/140 dead transitions. [2021-12-06 18:36:06,094 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 140 transitions, 316 flow [2021-12-06 18:36:06,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:36:06,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-06 18:36:06,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 397 transitions. [2021-12-06 18:36:06,098 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8322851153039832 [2021-12-06 18:36:06,098 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 397 transitions. [2021-12-06 18:36:06,098 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 397 transitions. [2021-12-06 18:36:06,098 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:36:06,098 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 397 transitions. [2021-12-06 18:36:06,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:36:06,103 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 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) [2021-12-06 18:36:06,103 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 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) [2021-12-06 18:36:06,103 INFO L186 Difference]: Start difference. First operand has 142 places, 141 transitions, 288 flow. Second operand 3 states and 397 transitions. [2021-12-06 18:36:06,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 140 transitions, 316 flow [2021-12-06 18:36:06,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 140 transitions, 312 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-06 18:36:06,109 INFO L242 Difference]: Finished difference. Result has 141 places, 140 transitions, 286 flow [2021-12-06 18:36:06,109 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=286, PETRI_PLACES=141, PETRI_TRANSITIONS=140} [2021-12-06 18:36:06,110 INFO L334 CegarLoopForPetriNet]: 156 programPoint places, -15 predicate places. [2021-12-06 18:36:06,110 INFO L470 AbstractCegarLoop]: Abstraction has has 141 places, 140 transitions, 286 flow [2021-12-06 18:36:06,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:36:06,111 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:36:06,111 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] [2021-12-06 18:36:06,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 18:36:06,111 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-12-06 18:36:06,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:36:06,112 INFO L85 PathProgramCache]: Analyzing trace with hash -260477463, now seen corresponding path program 1 times [2021-12-06 18:36:06,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:36:06,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840968761] [2021-12-06 18:36:06,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:36:06,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:36:06,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:36:06,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:36:06,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:36:06,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840968761] [2021-12-06 18:36:06,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840968761] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:36:06,154 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:36:06,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 18:36:06,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222422224] [2021-12-06 18:36:06,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:36:06,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:36:06,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:36:06,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:36:06,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:36:06,157 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 159 [2021-12-06 18:36:06,158 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 140 transitions, 286 flow. Second operand has 3 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:36:06,158 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:36:06,158 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 159 [2021-12-06 18:36:06,158 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:36:06,222 INFO L129 PetriNetUnfolder]: 30/376 cut-off events. [2021-12-06 18:36:06,223 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-06 18:36:06,224 INFO L84 FinitePrefix]: Finished finitePrefix Result has 438 conditions, 376 events. 30/376 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1539 event pairs, 14 based on Foata normal form. 0/340 useless extension candidates. Maximal degree in co-relation 405. Up to 54 conditions per place. [2021-12-06 18:36:06,226 INFO L132 encePairwiseOnDemand]: 156/159 looper letters, 13 selfloop transitions, 2 changer transitions 0/139 dead transitions. [2021-12-06 18:36:06,226 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 139 transitions, 314 flow [2021-12-06 18:36:06,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:36:06,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-06 18:36:06,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 397 transitions. [2021-12-06 18:36:06,229 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8322851153039832 [2021-12-06 18:36:06,229 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 397 transitions. [2021-12-06 18:36:06,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 397 transitions. [2021-12-06 18:36:06,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:36:06,229 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 397 transitions. [2021-12-06 18:36:06,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:36:06,233 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 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) [2021-12-06 18:36:06,234 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 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) [2021-12-06 18:36:06,234 INFO L186 Difference]: Start difference. First operand has 141 places, 140 transitions, 286 flow. Second operand 3 states and 397 transitions. [2021-12-06 18:36:06,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 139 transitions, 314 flow [2021-12-06 18:36:06,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 139 transitions, 310 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-06 18:36:06,238 INFO L242 Difference]: Finished difference. Result has 140 places, 139 transitions, 284 flow [2021-12-06 18:36:06,239 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=284, PETRI_PLACES=140, PETRI_TRANSITIONS=139} [2021-12-06 18:36:06,239 INFO L334 CegarLoopForPetriNet]: 156 programPoint places, -16 predicate places. [2021-12-06 18:36:06,240 INFO L470 AbstractCegarLoop]: Abstraction has has 140 places, 139 transitions, 284 flow [2021-12-06 18:36:06,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:36:06,240 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:36:06,240 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] [2021-12-06 18:36:06,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 18:36:06,241 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-12-06 18:36:06,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:36:06,241 INFO L85 PathProgramCache]: Analyzing trace with hash 459629893, now seen corresponding path program 1 times [2021-12-06 18:36:06,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:36:06,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619221875] [2021-12-06 18:36:06,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:36:06,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:36:06,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:36:06,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:36:06,279 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:36:06,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619221875] [2021-12-06 18:36:06,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619221875] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:36:06,279 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:36:06,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 18:36:06,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081263083] [2021-12-06 18:36:06,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:36:06,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:36:06,280 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:36:06,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:36:06,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:36:06,282 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 159 [2021-12-06 18:36:06,283 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 139 transitions, 284 flow. Second operand has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:36:06,283 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:36:06,283 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 159 [2021-12-06 18:36:06,283 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:36:06,380 INFO L129 PetriNetUnfolder]: 77/530 cut-off events. [2021-12-06 18:36:06,380 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-06 18:36:06,382 INFO L84 FinitePrefix]: Finished finitePrefix Result has 679 conditions, 530 events. 77/530 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2578 event pairs, 47 based on Foata normal form. 0/469 useless extension candidates. Maximal degree in co-relation 641. Up to 141 conditions per place. [2021-12-06 18:36:06,384 INFO L132 encePairwiseOnDemand]: 156/159 looper letters, 19 selfloop transitions, 2 changer transitions 0/138 dead transitions. [2021-12-06 18:36:06,385 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 138 transitions, 324 flow [2021-12-06 18:36:06,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:36:06,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-06 18:36:06,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 385 transitions. [2021-12-06 18:36:06,387 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8071278825995807 [2021-12-06 18:36:06,387 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 385 transitions. [2021-12-06 18:36:06,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 385 transitions. [2021-12-06 18:36:06,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:36:06,388 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 385 transitions. [2021-12-06 18:36:06,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:36:06,391 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 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) [2021-12-06 18:36:06,392 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 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) [2021-12-06 18:36:06,392 INFO L186 Difference]: Start difference. First operand has 140 places, 139 transitions, 284 flow. Second operand 3 states and 385 transitions. [2021-12-06 18:36:06,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 138 transitions, 324 flow [2021-12-06 18:36:06,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 138 transitions, 320 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-06 18:36:06,396 INFO L242 Difference]: Finished difference. Result has 139 places, 138 transitions, 282 flow [2021-12-06 18:36:06,397 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=282, PETRI_PLACES=139, PETRI_TRANSITIONS=138} [2021-12-06 18:36:06,398 INFO L334 CegarLoopForPetriNet]: 156 programPoint places, -17 predicate places. [2021-12-06 18:36:06,398 INFO L470 AbstractCegarLoop]: Abstraction has has 139 places, 138 transitions, 282 flow [2021-12-06 18:36:06,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:36:06,399 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:36:06,399 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] [2021-12-06 18:36:06,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 18:36:06,399 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-12-06 18:36:06,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:36:06,400 INFO L85 PathProgramCache]: Analyzing trace with hash 782364043, now seen corresponding path program 1 times [2021-12-06 18:36:06,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:36:06,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117387513] [2021-12-06 18:36:06,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:36:06,401 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:36:06,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:36:06,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:36:06,481 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:36:06,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117387513] [2021-12-06 18:36:06,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117387513] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:36:06,482 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:36:06,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 18:36:06,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403526437] [2021-12-06 18:36:06,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:36:06,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 18:36:06,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:36:06,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 18:36:06,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 18:36:06,485 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 159 [2021-12-06 18:36:06,486 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 138 transitions, 282 flow. Second operand has 4 states, 4 states have (on average 129.5) internal successors, (518), 4 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:36:06,486 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:36:06,486 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 159 [2021-12-06 18:36:06,486 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:36:06,566 INFO L129 PetriNetUnfolder]: 58/616 cut-off events. [2021-12-06 18:36:06,566 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-06 18:36:06,567 INFO L84 FinitePrefix]: Finished finitePrefix Result has 718 conditions, 616 events. 58/616 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3355 event pairs, 10 based on Foata normal form. 0/557 useless extension candidates. Maximal degree in co-relation 674. Up to 47 conditions per place. [2021-12-06 18:36:06,569 INFO L132 encePairwiseOnDemand]: 154/159 looper letters, 24 selfloop transitions, 5 changer transitions 0/152 dead transitions. [2021-12-06 18:36:06,570 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 152 transitions, 368 flow [2021-12-06 18:36:06,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 18:36:06,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-06 18:36:06,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 671 transitions. [2021-12-06 18:36:06,572 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8440251572327044 [2021-12-06 18:36:06,572 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 671 transitions. [2021-12-06 18:36:06,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 671 transitions. [2021-12-06 18:36:06,572 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:36:06,572 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 671 transitions. [2021-12-06 18:36:06,574 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 134.2) internal successors, (671), 5 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:36:06,576 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 159.0) internal successors, (954), 6 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:36:06,577 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 159.0) internal successors, (954), 6 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:36:06,577 INFO L186 Difference]: Start difference. First operand has 139 places, 138 transitions, 282 flow. Second operand 5 states and 671 transitions. [2021-12-06 18:36:06,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 152 transitions, 368 flow [2021-12-06 18:36:06,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 152 transitions, 364 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-06 18:36:06,580 INFO L242 Difference]: Finished difference. Result has 145 places, 141 transitions, 312 flow [2021-12-06 18:36:06,580 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=312, PETRI_PLACES=145, PETRI_TRANSITIONS=141} [2021-12-06 18:36:06,581 INFO L334 CegarLoopForPetriNet]: 156 programPoint places, -11 predicate places. [2021-12-06 18:36:06,581 INFO L470 AbstractCegarLoop]: Abstraction has has 145 places, 141 transitions, 312 flow [2021-12-06 18:36:06,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 129.5) internal successors, (518), 4 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:36:06,581 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:36:06,581 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] [2021-12-06 18:36:06,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 18:36:06,582 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-12-06 18:36:06,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:36:06,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1775845645, now seen corresponding path program 1 times [2021-12-06 18:36:06,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:36:06,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062075824] [2021-12-06 18:36:06,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:36:06,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:36:06,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:36:06,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:36:06,614 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:36:06,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062075824] [2021-12-06 18:36:06,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062075824] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:36:06,614 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:36:06,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 18:36:06,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576923692] [2021-12-06 18:36:06,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:36:06,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:36:06,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:36:06,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:36:06,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:36:06,616 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 159 [2021-12-06 18:36:06,617 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 141 transitions, 312 flow. Second operand has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:36:06,617 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:36:06,617 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 159 [2021-12-06 18:36:06,617 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:36:06,736 INFO L129 PetriNetUnfolder]: 125/1188 cut-off events. [2021-12-06 18:36:06,736 INFO L130 PetriNetUnfolder]: For 34/37 co-relation queries the response was YES. [2021-12-06 18:36:06,739 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1476 conditions, 1188 events. 125/1188 cut-off events. For 34/37 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 8331 event pairs, 37 based on Foata normal form. 0/1093 useless extension candidates. Maximal degree in co-relation 1422. Up to 145 conditions per place. [2021-12-06 18:36:06,742 INFO L132 encePairwiseOnDemand]: 155/159 looper letters, 26 selfloop transitions, 3 changer transitions 1/151 dead transitions. [2021-12-06 18:36:06,742 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 151 transitions, 396 flow [2021-12-06 18:36:06,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:36:06,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-06 18:36:06,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 401 transitions. [2021-12-06 18:36:06,744 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8406708595387841 [2021-12-06 18:36:06,744 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 401 transitions. [2021-12-06 18:36:06,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 401 transitions. [2021-12-06 18:36:06,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:36:06,744 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 401 transitions. [2021-12-06 18:36:06,745 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 133.66666666666666) internal successors, (401), 3 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:36:06,746 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 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) [2021-12-06 18:36:06,747 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 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) [2021-12-06 18:36:06,747 INFO L186 Difference]: Start difference. First operand has 145 places, 141 transitions, 312 flow. Second operand 3 states and 401 transitions. [2021-12-06 18:36:06,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 151 transitions, 396 flow [2021-12-06 18:36:06,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 151 transitions, 396 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-06 18:36:06,750 INFO L242 Difference]: Finished difference. Result has 149 places, 143 transitions, 334 flow [2021-12-06 18:36:06,750 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=334, PETRI_PLACES=149, PETRI_TRANSITIONS=143} [2021-12-06 18:36:06,751 INFO L334 CegarLoopForPetriNet]: 156 programPoint places, -7 predicate places. [2021-12-06 18:36:06,751 INFO L470 AbstractCegarLoop]: Abstraction has has 149 places, 143 transitions, 334 flow [2021-12-06 18:36:06,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:36:06,751 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:36:06,751 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] [2021-12-06 18:36:06,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 18:36:06,752 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-12-06 18:36:06,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:36:06,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1363842661, now seen corresponding path program 1 times [2021-12-06 18:36:06,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:36:06,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22106063] [2021-12-06 18:36:06,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:36:06,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:36:06,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:36:06,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:36:06,804 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:36:06,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22106063] [2021-12-06 18:36:06,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22106063] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:36:06,804 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:36:06,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 18:36:06,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767376] [2021-12-06 18:36:06,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:36:06,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 18:36:06,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:36:06,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 18:36:06,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 18:36:06,807 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 159 [2021-12-06 18:36:06,808 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 143 transitions, 334 flow. Second operand has 6 states, 6 states have (on average 127.66666666666667) internal successors, (766), 6 states have internal predecessors, (766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:36:06,808 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:36:06,808 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 159 [2021-12-06 18:36:06,808 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:36:07,035 INFO L129 PetriNetUnfolder]: 171/1344 cut-off events. [2021-12-06 18:36:07,036 INFO L130 PetriNetUnfolder]: For 56/59 co-relation queries the response was YES. [2021-12-06 18:36:07,038 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1801 conditions, 1344 events. 171/1344 cut-off events. For 56/59 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 10802 event pairs, 8 based on Foata normal form. 0/1265 useless extension candidates. Maximal degree in co-relation 1745. Up to 175 conditions per place. [2021-12-06 18:36:07,041 INFO L132 encePairwiseOnDemand]: 151/159 looper letters, 23 selfloop transitions, 3 changer transitions 30/180 dead transitions. [2021-12-06 18:36:07,042 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 180 transitions, 534 flow [2021-12-06 18:36:07,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 18:36:07,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-06 18:36:07,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1316 transitions. [2021-12-06 18:36:07,045 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8276729559748428 [2021-12-06 18:36:07,045 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1316 transitions. [2021-12-06 18:36:07,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1316 transitions. [2021-12-06 18:36:07,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:36:07,046 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1316 transitions. [2021-12-06 18:36:07,049 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 131.6) internal successors, (1316), 10 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:36:07,052 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 159.0) internal successors, (1749), 11 states have internal predecessors, (1749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:36:07,053 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 159.0) internal successors, (1749), 11 states have internal predecessors, (1749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:36:07,053 INFO L186 Difference]: Start difference. First operand has 149 places, 143 transitions, 334 flow. Second operand 10 states and 1316 transitions. [2021-12-06 18:36:07,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 180 transitions, 534 flow [2021-12-06 18:36:07,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 180 transitions, 528 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-06 18:36:07,057 INFO L242 Difference]: Finished difference. Result has 163 places, 144 transitions, 363 flow [2021-12-06 18:36:07,057 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=363, PETRI_PLACES=163, PETRI_TRANSITIONS=144} [2021-12-06 18:36:07,058 INFO L334 CegarLoopForPetriNet]: 156 programPoint places, 7 predicate places. [2021-12-06 18:36:07,058 INFO L470 AbstractCegarLoop]: Abstraction has has 163 places, 144 transitions, 363 flow [2021-12-06 18:36:07,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 127.66666666666667) internal successors, (766), 6 states have internal predecessors, (766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:36:07,058 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:36:07,059 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] [2021-12-06 18:36:07,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 18:36:07,059 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-12-06 18:36:07,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:36:07,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1436236176, now seen corresponding path program 1 times [2021-12-06 18:36:07,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:36:07,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274298840] [2021-12-06 18:36:07,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:36:07,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:36:07,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:36:07,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:36:07,089 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:36:07,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274298840] [2021-12-06 18:36:07,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274298840] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:36:07,089 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:36:07,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 18:36:07,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357493238] [2021-12-06 18:36:07,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:36:07,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:36:07,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:36:07,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:36:07,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:36:07,091 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 159 [2021-12-06 18:36:07,091 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 144 transitions, 363 flow. Second operand has 3 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:36:07,091 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:36:07,091 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 159 [2021-12-06 18:36:07,091 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:36:07,235 INFO L129 PetriNetUnfolder]: 171/1531 cut-off events. [2021-12-06 18:36:07,235 INFO L130 PetriNetUnfolder]: For 546/562 co-relation queries the response was YES. [2021-12-06 18:36:07,239 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2287 conditions, 1531 events. 171/1531 cut-off events. For 546/562 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 11847 event pairs, 64 based on Foata normal form. 0/1424 useless extension candidates. Maximal degree in co-relation 2223. Up to 260 conditions per place. [2021-12-06 18:36:07,241 INFO L132 encePairwiseOnDemand]: 154/159 looper letters, 24 selfloop transitions, 4 changer transitions 9/155 dead transitions. [2021-12-06 18:36:07,241 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 155 transitions, 477 flow [2021-12-06 18:36:07,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:36:07,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-06 18:36:07,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 397 transitions. [2021-12-06 18:36:07,243 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8322851153039832 [2021-12-06 18:36:07,243 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 397 transitions. [2021-12-06 18:36:07,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 397 transitions. [2021-12-06 18:36:07,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:36:07,243 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 397 transitions. [2021-12-06 18:36:07,244 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:36:07,245 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 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) [2021-12-06 18:36:07,245 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 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) [2021-12-06 18:36:07,245 INFO L186 Difference]: Start difference. First operand has 163 places, 144 transitions, 363 flow. Second operand 3 states and 397 transitions. [2021-12-06 18:36:07,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 155 transitions, 477 flow [2021-12-06 18:36:07,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 155 transitions, 468 flow, removed 3 selfloop flow, removed 4 redundant places. [2021-12-06 18:36:07,250 INFO L242 Difference]: Finished difference. Result has 155 places, 142 transitions, 368 flow [2021-12-06 18:36:07,251 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=368, PETRI_PLACES=155, PETRI_TRANSITIONS=142} [2021-12-06 18:36:07,251 INFO L334 CegarLoopForPetriNet]: 156 programPoint places, -1 predicate places. [2021-12-06 18:36:07,251 INFO L470 AbstractCegarLoop]: Abstraction has has 155 places, 142 transitions, 368 flow [2021-12-06 18:36:07,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:36:07,251 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:36:07,252 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:36:07,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-06 18:36:07,252 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-12-06 18:36:07,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:36:07,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1239839679, now seen corresponding path program 1 times [2021-12-06 18:36:07,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:36:07,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926220712] [2021-12-06 18:36:07,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:36:07,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:36:07,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:36:07,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:36:07,295 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:36:07,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926220712] [2021-12-06 18:36:07,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926220712] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:36:07,296 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:36:07,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 18:36:07,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548386966] [2021-12-06 18:36:07,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:36:07,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 18:36:07,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:36:07,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 18:36:07,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:36:07,297 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 159 [2021-12-06 18:36:07,298 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 142 transitions, 368 flow. Second operand has 5 states, 5 states have (on average 125.0) internal successors, (625), 5 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:36:07,298 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:36:07,298 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 159 [2021-12-06 18:36:07,298 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:36:07,434 INFO L129 PetriNetUnfolder]: 100/997 cut-off events. [2021-12-06 18:36:07,434 INFO L130 PetriNetUnfolder]: For 320/333 co-relation queries the response was YES. [2021-12-06 18:36:07,436 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1513 conditions, 997 events. 100/997 cut-off events. For 320/333 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 6429 event pairs, 55 based on Foata normal form. 0/943 useless extension candidates. Maximal degree in co-relation 1453. Up to 164 conditions per place. [2021-12-06 18:36:07,438 INFO L132 encePairwiseOnDemand]: 154/159 looper letters, 21 selfloop transitions, 0 changer transitions 21/161 dead transitions. [2021-12-06 18:36:07,438 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 161 transitions, 514 flow [2021-12-06 18:36:07,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 18:36:07,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-06 18:36:07,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 773 transitions. [2021-12-06 18:36:07,441 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.810272536687631 [2021-12-06 18:36:07,441 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 773 transitions. [2021-12-06 18:36:07,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 773 transitions. [2021-12-06 18:36:07,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:36:07,441 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 773 transitions. [2021-12-06 18:36:07,443 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 128.83333333333334) internal successors, (773), 6 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:36:07,444 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 159.0) internal successors, (1113), 7 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:36:07,445 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 159.0) internal successors, (1113), 7 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:36:07,445 INFO L186 Difference]: Start difference. First operand has 155 places, 142 transitions, 368 flow. Second operand 6 states and 773 transitions. [2021-12-06 18:36:07,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 161 transitions, 514 flow [2021-12-06 18:36:07,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 161 transitions, 500 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-12-06 18:36:07,449 INFO L242 Difference]: Finished difference. Result has 161 places, 140 transitions, 362 flow [2021-12-06 18:36:07,450 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=358, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=362, PETRI_PLACES=161, PETRI_TRANSITIONS=140} [2021-12-06 18:36:07,450 INFO L334 CegarLoopForPetriNet]: 156 programPoint places, 5 predicate places. [2021-12-06 18:36:07,450 INFO L470 AbstractCegarLoop]: Abstraction has has 161 places, 140 transitions, 362 flow [2021-12-06 18:36:07,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 125.0) internal successors, (625), 5 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:36:07,451 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:36:07,451 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:36:07,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-06 18:36:07,451 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-12-06 18:36:07,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:36:07,452 INFO L85 PathProgramCache]: Analyzing trace with hash 80110187, now seen corresponding path program 1 times [2021-12-06 18:36:07,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:36:07,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356888557] [2021-12-06 18:36:07,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:36:07,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:36:07,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:36:07,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:36:07,484 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:36:07,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356888557] [2021-12-06 18:36:07,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356888557] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:36:07,484 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:36:07,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 18:36:07,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685092043] [2021-12-06 18:36:07,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:36:07,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 18:36:07,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:36:07,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 18:36:07,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 18:36:07,486 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 159 [2021-12-06 18:36:07,486 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 140 transitions, 362 flow. Second operand has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:36:07,487 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:36:07,487 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 159 [2021-12-06 18:36:07,487 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:36:07,554 INFO L129 PetriNetUnfolder]: 33/555 cut-off events. [2021-12-06 18:36:07,554 INFO L130 PetriNetUnfolder]: For 131/134 co-relation queries the response was YES. [2021-12-06 18:36:07,555 INFO L84 FinitePrefix]: Finished finitePrefix Result has 821 conditions, 555 events. 33/555 cut-off events. For 131/134 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2524 event pairs, 10 based on Foata normal form. 4/537 useless extension candidates. Maximal degree in co-relation 804. Up to 60 conditions per place. [2021-12-06 18:36:07,556 INFO L132 encePairwiseOnDemand]: 156/159 looper letters, 16 selfloop transitions, 1 changer transitions 8/147 dead transitions. [2021-12-06 18:36:07,556 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 147 transitions, 427 flow [2021-12-06 18:36:07,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 18:36:07,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-12-06 18:36:07,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 537 transitions. [2021-12-06 18:36:07,558 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8443396226415094 [2021-12-06 18:36:07,558 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 537 transitions. [2021-12-06 18:36:07,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 537 transitions. [2021-12-06 18:36:07,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:36:07,559 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 537 transitions. [2021-12-06 18:36:07,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 134.25) internal successors, (537), 4 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:36:07,561 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 159.0) internal successors, (795), 5 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:36:07,561 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 159.0) internal successors, (795), 5 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:36:07,561 INFO L186 Difference]: Start difference. First operand has 161 places, 140 transitions, 362 flow. Second operand 4 states and 537 transitions. [2021-12-06 18:36:07,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 147 transitions, 427 flow [2021-12-06 18:36:07,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 147 transitions, 417 flow, removed 4 selfloop flow, removed 5 redundant places. [2021-12-06 18:36:07,565 INFO L242 Difference]: Finished difference. Result has 155 places, 136 transitions, 333 flow [2021-12-06 18:36:07,565 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=333, PETRI_PLACES=155, PETRI_TRANSITIONS=136} [2021-12-06 18:36:07,566 INFO L334 CegarLoopForPetriNet]: 156 programPoint places, -1 predicate places. [2021-12-06 18:36:07,566 INFO L470 AbstractCegarLoop]: Abstraction has has 155 places, 136 transitions, 333 flow [2021-12-06 18:36:07,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:36:07,566 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:36:07,566 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:36:07,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-06 18:36:07,567 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-12-06 18:36:07,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:36:07,567 INFO L85 PathProgramCache]: Analyzing trace with hash 8224897, now seen corresponding path program 2 times [2021-12-06 18:36:07,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:36:07,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053452605] [2021-12-06 18:36:07,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:36:07,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:36:07,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:36:07,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:36:07,643 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:36:07,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053452605] [2021-12-06 18:36:07,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053452605] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:36:07,643 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:36:07,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 18:36:07,643 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017510105] [2021-12-06 18:36:07,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:36:07,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:36:07,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:36:07,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:36:07,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:36:07,646 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 159 [2021-12-06 18:36:07,647 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 136 transitions, 333 flow. Second operand has 9 states, 9 states have (on average 121.33333333333333) internal successors, (1092), 9 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:36:07,647 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:36:07,647 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 159 [2021-12-06 18:36:07,647 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:36:07,879 INFO L129 PetriNetUnfolder]: 81/1312 cut-off events. [2021-12-06 18:36:07,879 INFO L130 PetriNetUnfolder]: For 230/245 co-relation queries the response was YES. [2021-12-06 18:36:07,882 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1777 conditions, 1312 events. 81/1312 cut-off events. For 230/245 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 9584 event pairs, 35 based on Foata normal form. 0/1251 useless extension candidates. Maximal degree in co-relation 1764. Up to 81 conditions per place. [2021-12-06 18:36:07,884 INFO L132 encePairwiseOnDemand]: 149/159 looper letters, 43 selfloop transitions, 6 changer transitions 27/188 dead transitions. [2021-12-06 18:36:07,884 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 188 transitions, 621 flow [2021-12-06 18:36:07,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 18:36:07,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 18:36:07,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1386 transitions. [2021-12-06 18:36:07,888 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7924528301886793 [2021-12-06 18:36:07,888 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1386 transitions. [2021-12-06 18:36:07,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1386 transitions. [2021-12-06 18:36:07,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:36:07,889 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1386 transitions. [2021-12-06 18:36:07,891 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 126.0) internal successors, (1386), 11 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:36:07,894 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 159.0) internal successors, (1908), 12 states have internal predecessors, (1908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:36:07,895 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 159.0) internal successors, (1908), 12 states have internal predecessors, (1908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:36:07,895 INFO L186 Difference]: Start difference. First operand has 155 places, 136 transitions, 333 flow. Second operand 11 states and 1386 transitions. [2021-12-06 18:36:07,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 188 transitions, 621 flow [2021-12-06 18:36:07,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 188 transitions, 601 flow, removed 1 selfloop flow, removed 6 redundant places. [2021-12-06 18:36:07,900 INFO L242 Difference]: Finished difference. Result has 166 places, 139 transitions, 368 flow [2021-12-06 18:36:07,900 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=368, PETRI_PLACES=166, PETRI_TRANSITIONS=139} [2021-12-06 18:36:07,900 INFO L334 CegarLoopForPetriNet]: 156 programPoint places, 10 predicate places. [2021-12-06 18:36:07,901 INFO L470 AbstractCegarLoop]: Abstraction has has 166 places, 139 transitions, 368 flow [2021-12-06 18:36:07,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 121.33333333333333) internal successors, (1092), 9 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:36:07,901 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:36:07,901 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:36:07,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-06 18:36:07,902 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-12-06 18:36:07,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:36:07,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1829365635, now seen corresponding path program 3 times [2021-12-06 18:36:07,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:36:07,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024734751] [2021-12-06 18:36:07,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:36:07,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:36:07,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:36:07,914 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 18:36:07,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:36:07,956 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 18:36:07,956 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 18:36:07,957 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (26 of 27 remaining) [2021-12-06 18:36:07,958 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE (25 of 27 remaining) [2021-12-06 18:36:07,958 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE (24 of 27 remaining) [2021-12-06 18:36:07,958 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (23 of 27 remaining) [2021-12-06 18:36:07,958 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr3ASSERT_VIOLATIONDATA_RACE (22 of 27 remaining) [2021-12-06 18:36:07,959 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr4ASSERT_VIOLATIONDATA_RACE (21 of 27 remaining) [2021-12-06 18:36:07,959 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr5ASSERT_VIOLATIONDATA_RACE (20 of 27 remaining) [2021-12-06 18:36:07,959 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE (19 of 27 remaining) [2021-12-06 18:36:07,959 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 27 remaining) [2021-12-06 18:36:07,959 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 27 remaining) [2021-12-06 18:36:07,959 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 27 remaining) [2021-12-06 18:36:07,959 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 27 remaining) [2021-12-06 18:36:07,959 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 27 remaining) [2021-12-06 18:36:07,959 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 27 remaining) [2021-12-06 18:36:07,959 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (12 of 27 remaining) [2021-12-06 18:36:07,960 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (11 of 27 remaining) [2021-12-06 18:36:07,960 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (10 of 27 remaining) [2021-12-06 18:36:07,960 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (9 of 27 remaining) [2021-12-06 18:36:07,960 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (8 of 27 remaining) [2021-12-06 18:36:07,960 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (7 of 27 remaining) [2021-12-06 18:36:07,960 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE (6 of 27 remaining) [2021-12-06 18:36:07,960 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE (5 of 27 remaining) [2021-12-06 18:36:07,960 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (4 of 27 remaining) [2021-12-06 18:36:07,960 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr3ASSERT_VIOLATIONDATA_RACE (3 of 27 remaining) [2021-12-06 18:36:07,960 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr4ASSERT_VIOLATIONDATA_RACE (2 of 27 remaining) [2021-12-06 18:36:07,960 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr5ASSERT_VIOLATIONDATA_RACE (1 of 27 remaining) [2021-12-06 18:36:07,960 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE (0 of 27 remaining) [2021-12-06 18:36:07,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-06 18:36:07,963 INFO L732 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:36:07,968 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-12-06 18:36:07,968 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 18:36:08,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 06:36:08 BasicIcfg [2021-12-06 18:36:08,033 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 18:36:08,033 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 18:36:08,033 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 18:36:08,034 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 18:36:08,034 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:36:05" (3/4) ... [2021-12-06 18:36:08,036 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 18:36:08,036 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 18:36:08,036 INFO L158 Benchmark]: Toolchain (without parser) took 3302.89ms. Allocated memory was 104.9MB in the beginning and 136.3MB in the end (delta: 31.5MB). Free memory was 70.9MB in the beginning and 98.0MB in the end (delta: -27.1MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. [2021-12-06 18:36:08,037 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 71.3MB. Free memory was 49.9MB in the beginning and 49.8MB in the end (delta: 21.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 18:36:08,037 INFO L158 Benchmark]: CACSL2BoogieTranslator took 318.08ms. Allocated memory is still 104.9MB. Free memory was 70.6MB in the beginning and 71.0MB in the end (delta: -350.9kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 18:36:08,037 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.21ms. Allocated memory is still 104.9MB. Free memory was 71.0MB in the beginning and 68.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 18:36:08,038 INFO L158 Benchmark]: Boogie Preprocessor took 20.13ms. Allocated memory is still 104.9MB. Free memory was 68.9MB in the beginning and 67.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 18:36:08,038 INFO L158 Benchmark]: RCFGBuilder took 387.12ms. Allocated memory is still 104.9MB. Free memory was 67.3MB in the beginning and 48.9MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-12-06 18:36:08,038 INFO L158 Benchmark]: TraceAbstraction took 2533.84ms. Allocated memory was 104.9MB in the beginning and 136.3MB in the end (delta: 31.5MB). Free memory was 48.5MB in the beginning and 99.0MB in the end (delta: -50.5MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2021-12-06 18:36:08,039 INFO L158 Benchmark]: Witness Printer took 2.49ms. Allocated memory is still 136.3MB. Free memory was 99.0MB in the beginning and 98.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 18:36:08,040 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 71.3MB. Free memory was 49.9MB in the beginning and 49.8MB in the end (delta: 21.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 318.08ms. Allocated memory is still 104.9MB. Free memory was 70.6MB in the beginning and 71.0MB in the end (delta: -350.9kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.21ms. Allocated memory is still 104.9MB. Free memory was 71.0MB in the beginning and 68.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.13ms. Allocated memory is still 104.9MB. Free memory was 68.9MB in the beginning and 67.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 387.12ms. Allocated memory is still 104.9MB. Free memory was 67.3MB in the beginning and 48.9MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2533.84ms. Allocated memory was 104.9MB in the beginning and 136.3MB in the end (delta: 31.5MB). Free memory was 48.5MB in the beginning and 99.0MB in the end (delta: -50.5MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Witness Printer took 2.49ms. Allocated memory is still 136.3MB. Free memory was 99.0MB in the beginning and 98.0MB in the end (delta: 1.0MB). There was no memory consumed. 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 - DataRaceFoundResult [Line: 737]: Data race detected Data race detected The following path leads to a data race: [L697] 0 volatile int stoppingFlag; VAL [stoppingFlag=0] [L698] 0 volatile int pendingIo; VAL [pendingIo=0, stoppingFlag=0] [L699] 0 volatile int stoppingEvent; VAL [pendingIo=0, stoppingEvent=0, stoppingFlag=0] [L700] 0 volatile int stopped; VAL [pendingIo=0, stopped=0, stoppingEvent=0, stoppingFlag=0] [L755] 0 pthread_t t; VAL [pendingIo=0, stopped=0, stoppingEvent=0, stoppingFlag=0, t={3:0}] [L756] 0 pendingIo = 1 VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0, t={3:0}] [L757] 0 stoppingFlag = 0 VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0, t={3:0}] [L758] 0 stoppingEvent = 0 VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0, t={3:0}] [L759] 0 stopped = 0 VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0, t={3:0}] [L760] FCALL, FORK 0 pthread_create(&t, 0, BCSP_PnpStop, 0) VAL [pendingIo=1, pthread_create(&t, 0, BCSP_PnpStop, 0)=-1, stopped=0, stoppingEvent=0, stoppingFlag=0, t={3:0}] [L761] CALL 0 BCSP_PnpAdd(0) [L734] 0 int status; VAL [arg={0:0}, arg={0:0}, pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0] [L735] CALL, EXPR 0 BCSP_IoIncrement() [L703] 0 int lsf = stoppingFlag; VAL [lsf=0, pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0] [L744] 1 stoppingFlag = 1 VAL [arg={0:0}, arg={0:0}, pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1] [L746] CALL 1 BCSP_IoDecrement() [L725] 1 int pending; VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1] [L726] CALL, EXPR 1 dec() [L705] COND FALSE 0 !(\read(lsf)) VAL [lsf=0, pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1] [L709] 0 int lp = pendingIo; VAL [lp=1, lsf=0, pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1] [L719] 1 pendingIo-- [L720] 1 int tmp = pendingIo; VAL [pendingIo=0, stopped=0, stoppingEvent=0, stoppingFlag=1, tmp=0] [L722] 1 return tmp; VAL [\result=0, pendingIo=0, stopped=0, stoppingEvent=0, stoppingFlag=1, tmp=0] [L726] RET, EXPR 1 dec() [L726] 1 pending = dec() VAL [dec()=0, pending=0, pendingIo=0, stopped=0, stoppingEvent=0, stoppingFlag=1] [L727] COND TRUE 1 pending == 0 VAL [pending=0, pendingIo=0, stopped=0, stoppingEvent=0, stoppingFlag=1] [L729] 1 stoppingEvent = 1 VAL [pending=0, pendingIo=0, stopped=0, stoppingEvent=1, stoppingFlag=1] [L746] RET 1 BCSP_IoDecrement() [L748] 1 int lse = stoppingEvent; VAL [arg={0:0}, arg={0:0}, lse=1, pendingIo=0, stopped=0, stoppingEvent=1, stoppingFlag=1] [L712] 0 pendingIo = lp + 1 VAL [lp=1, lsf=0, pendingIo=2, stopped=0, stoppingEvent=1, stoppingFlag=1] [L715] 0 return 0; VAL [\result=0, lp=1, lsf=0, pendingIo=2, stopped=0, stoppingEvent=1, stoppingFlag=1] [L735] RET, EXPR 0 BCSP_IoIncrement() [L735] 0 status = BCSP_IoIncrement() VAL [arg={0:0}, arg={0:0}, BCSP_IoIncrement()=0, pendingIo=2, status=0, stopped=0, stoppingEvent=1, stoppingFlag=1] [L736] COND TRUE 0 status == 0 VAL [arg={0:0}, arg={0:0}, pendingIo=2, status=0, stopped=0, stoppingEvent=1, stoppingFlag=1] [L737] 0 !stopped VAL [arg={0:0}, arg={0:0}, pendingIo=2, status=0, stopped=0, stoppingEvent=1, stoppingFlag=1] [L750] CALL 1 assume_abort_if_not(lse) [L686] COND FALSE 1 !(!cond) VAL [\old(cond)=1, cond=1, pendingIo=2, stopped=0, stoppingEvent=1, stoppingFlag=1] [L750] RET 1 assume_abort_if_not(lse) [L751] 1 stopped = 1 VAL [arg={0:0}, arg={0:0}, lse=1, pendingIo=2, stopped=1, stopped = 1=53, stoppingEvent=1, stoppingFlag=1] [L737] 0 !stopped VAL [arg={0:0}, arg={0:0}, pendingIo=2, status=0, stopped=1, stoppingEvent=1, stoppingFlag=1] Now there is a data race on ~stopped~0 between C: stopped = 1 [751] and C: !stopped [737] - UnprovableResult [Line: 744]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 720]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 729]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 748]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 751]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 756]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 757]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 758]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 759]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 720]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 729]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 760]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 196 locations, 27 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.4s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 178 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 178 mSDsluCounter, 303 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 465 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 661 IncrementalHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 97 mSDtfsCounter, 661 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=368occurred in iteration=8, InterpolantAutomatonStates: 54, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 751 NumberOfCodeBlocks, 751 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 647 ConstructedInterpolants, 0 QuantifiedInterpolants, 981 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-12-06 18:36:08,134 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b9cc9e2-01e7-4428-9cd0-ff4eeaad06e3/bin/uautomizer-DrprNOufMa/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE