./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF --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 9e83a031749850377e0f1ecd2c361048b8f87f697f146600048034d31c93bd9a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 05:49:21,713 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 05:49:21,716 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 05:49:21,770 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 05:49:21,771 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 05:49:21,776 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 05:49:21,778 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 05:49:21,782 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 05:49:21,785 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 05:49:21,790 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 05:49:21,792 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 05:49:21,794 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 05:49:21,795 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 05:49:21,798 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 05:49:21,800 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 05:49:21,805 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 05:49:21,807 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 05:49:21,808 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 05:49:21,811 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 05:49:21,819 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 05:49:21,821 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 05:49:21,823 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 05:49:21,826 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 05:49:21,827 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 05:49:21,837 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 05:49:21,838 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 05:49:21,838 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 05:49:21,840 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 05:49:21,841 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 05:49:21,843 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 05:49:21,843 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 05:49:21,845 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 05:49:21,847 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 05:49:21,849 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 05:49:21,851 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 05:49:21,851 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 05:49:21,852 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 05:49:21,852 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 05:49:21,853 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 05:49:21,854 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 05:49:21,855 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 05:49:21,856 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/config/svcomp-DataRace-32bit-Automizer_Default.epf [2021-11-20 05:49:21,898 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 05:49:21,898 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 05:49:21,899 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 05:49:21,899 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 05:49:21,901 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 05:49:21,901 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 05:49:21,902 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 05:49:21,902 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 05:49:21,903 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 05:49:21,903 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 05:49:21,904 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 05:49:21,904 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 05:49:21,905 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 05:49:21,905 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 05:49:21,905 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 05:49:21,905 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 05:49:21,906 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 05:49:21,906 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 05:49:21,906 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-20 05:49:21,906 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 05:49:21,907 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 05:49:21,907 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 05:49:21,907 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 05:49:21,907 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 05:49:21,908 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 05:49:21,908 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 05:49:21,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:49:21,908 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 05:49:21,909 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 05:49:21,910 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 05:49:21,911 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 05:49:21,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 05:49:21,920 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 05:49:21,920 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 05:49:21,920 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 05:49:21,921 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 05:49:21,921 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_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e83a031749850377e0f1ecd2c361048b8f87f697f146600048034d31c93bd9a [2021-11-20 05:49:22,245 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 05:49:22,309 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 05:49:22,317 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 05:49:22,320 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 05:49:22,320 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 05:49:22,322 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i [2021-11-20 05:49:22,380 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/data/acb886e1d/0740d8eded3d41b18e7e58529d0cca09/FLAG92cb7e7c7 [2021-11-20 05:49:22,938 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 05:49:22,941 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i [2021-11-20 05:49:22,969 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/data/acb886e1d/0740d8eded3d41b18e7e58529d0cca09/FLAG92cb7e7c7 [2021-11-20 05:49:23,189 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/data/acb886e1d/0740d8eded3d41b18e7e58529d0cca09 [2021-11-20 05:49:23,191 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 05:49:23,192 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 05:49:23,197 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 05:49:23,198 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 05:49:23,203 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 05:49:23,204 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:49:23" (1/1) ... [2021-11-20 05:49:23,205 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76430f34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:49:23, skipping insertion in model container [2021-11-20 05:49:23,206 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:49:23" (1/1) ... [2021-11-20 05:49:23,213 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 05:49:23,260 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 05:49:23,768 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:49:23,805 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 05:49:23,865 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:49:23,945 INFO L208 MainTranslator]: Completed translation [2021-11-20 05:49:23,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:49:23 WrapperNode [2021-11-20 05:49:23,945 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 05:49:23,946 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 05:49:23,947 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 05:49:23,947 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 05:49:23,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:49:23" (1/1) ... [2021-11-20 05:49:23,989 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:49:23" (1/1) ... [2021-11-20 05:49:24,035 INFO L137 Inliner]: procedures = 262, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 115 [2021-11-20 05:49:24,035 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 05:49:24,036 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 05:49:24,036 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 05:49:24,036 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 05:49:24,045 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:49:23" (1/1) ... [2021-11-20 05:49:24,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:49:23" (1/1) ... [2021-11-20 05:49:24,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:49:23" (1/1) ... [2021-11-20 05:49:24,050 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:49:23" (1/1) ... [2021-11-20 05:49:24,062 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:49:23" (1/1) ... [2021-11-20 05:49:24,066 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:49:23" (1/1) ... [2021-11-20 05:49:24,068 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:49:23" (1/1) ... [2021-11-20 05:49:24,072 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 05:49:24,073 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 05:49:24,073 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 05:49:24,073 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 05:49:24,074 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:49:23" (1/1) ... [2021-11-20 05:49:24,096 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:49:24,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:49:24,130 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 05:49:24,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 05:49:24,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 05:49:24,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 05:49:24,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 05:49:24,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 05:49:24,186 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-20 05:49:24,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 05:49:24,187 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-20 05:49:24,187 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-20 05:49:24,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 05:49:24,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 05:49:24,189 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-20 05:49:24,383 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 05:49:24,384 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 05:49:24,669 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 05:49:24,678 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 05:49:24,681 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-20 05:49:24,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:49:24 BoogieIcfgContainer [2021-11-20 05:49:24,696 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 05:49:24,698 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 05:49:24,698 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 05:49:24,702 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 05:49:24,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:49:23" (1/3) ... [2021-11-20 05:49:24,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57e8fa2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:49:24, skipping insertion in model container [2021-11-20 05:49:24,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:49:23" (2/3) ... [2021-11-20 05:49:24,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57e8fa2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:49:24, skipping insertion in model container [2021-11-20 05:49:24,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:49:24" (3/3) ... [2021-11-20 05:49:24,705 INFO L111 eAbstractionObserver]: Analyzing ICFG 06-symbeq_05-funloop_hard2.i [2021-11-20 05:49:24,711 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-20 05:49:24,721 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 05:49:24,722 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-20 05:49:24,722 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-20 05:49:24,790 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,790 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,790 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,790 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,791 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,791 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,791 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,791 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,792 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,793 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,794 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,798 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,799 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,799 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,799 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,799 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,800 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,801 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,801 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,801 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,801 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,801 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#in~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,802 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#in~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,803 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,803 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#in~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,803 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#in~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,804 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,804 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,804 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,804 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,805 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,805 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,805 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,806 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,806 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,806 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,806 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,806 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,807 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#in~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,807 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#in~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,807 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,807 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,808 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#in~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,808 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#in~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,808 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,809 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,809 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,809 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,809 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,809 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,810 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,810 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,810 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,811 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,811 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,811 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,811 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,811 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,812 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,812 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,812 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,812 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,813 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,813 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,813 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,813 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,814 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,814 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,815 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,815 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,815 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,815 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,816 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,816 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,816 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,817 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,817 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,817 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,817 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,818 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,818 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,818 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,819 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,819 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,820 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,823 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,823 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,823 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,825 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,825 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,825 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,826 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,826 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,826 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,832 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,832 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,832 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,833 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,833 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,833 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,833 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,834 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,834 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,834 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,834 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,834 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,835 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,835 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,835 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,835 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,835 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,836 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,836 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,836 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,836 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,836 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,836 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,837 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,837 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,837 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,837 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,837 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,838 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,838 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,838 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,838 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,838 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,839 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,839 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,839 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,839 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,839 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,840 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,840 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,840 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,840 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,840 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,840 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,841 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,841 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,841 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,841 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,841 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,842 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,842 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,842 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,842 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,842 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,843 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,843 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,843 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,843 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,847 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,848 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,848 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,848 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,848 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#in~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,848 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,848 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,848 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#in~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,849 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,849 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,849 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,849 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,849 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,849 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:49:24,854 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-20 05:49:24,925 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 05:49:24,930 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 05:49:24,931 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-11-20 05:49:24,944 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 126 places, 128 transitions, 261 flow [2021-11-20 05:49:25,004 INFO L129 PetriNetUnfolder]: 6/127 cut-off events. [2021-11-20 05:49:25,004 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-20 05:49:25,012 INFO L84 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 127 events. 6/127 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 232 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 102. Up to 2 conditions per place. [2021-11-20 05:49:25,013 INFO L82 GeneralOperation]: Start removeDead. Operand has 126 places, 128 transitions, 261 flow [2021-11-20 05:49:25,019 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 125 places, 127 transitions, 257 flow [2021-11-20 05:49:25,032 INFO L129 PetriNetUnfolder]: 4/63 cut-off events. [2021-11-20 05:49:25,032 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-20 05:49:25,032 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:49:25,033 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] [2021-11-20 05:49:25,034 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-20 05:49:25,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:49:25,039 INFO L85 PathProgramCache]: Analyzing trace with hash -88358338, now seen corresponding path program 1 times [2021-11-20 05:49:25,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:49:25,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192065416] [2021-11-20 05:49:25,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:49:25,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:49:25,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:49:25,318 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:49:25,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192065416] [2021-11-20 05:49:25,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192065416] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:49:25,320 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:49:25,321 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 05:49:25,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830455090] [2021-11-20 05:49:25,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:49:25,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 05:49:25,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:49:25,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 05:49:25,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 05:49:25,368 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 128 [2021-11-20 05:49:25,371 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 127 transitions, 257 flow. Second operand has 2 states, 2 states have (on average 125.0) internal successors, (250), 2 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:25,372 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:49:25,372 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 128 [2021-11-20 05:49:25,373 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:49:25,413 INFO L129 PetriNetUnfolder]: 3/124 cut-off events. [2021-11-20 05:49:25,413 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-20 05:49:25,416 INFO L84 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 124 events. 3/124 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 227 event pairs, 0 based on Foata normal form. 3/118 useless extension candidates. Maximal degree in co-relation 100. Up to 2 conditions per place. [2021-11-20 05:49:25,417 INFO L132 encePairwiseOnDemand]: 125/128 looper letters, 1 selfloop transitions, 0 changer transitions 0/124 dead transitions. [2021-11-20 05:49:25,418 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 124 transitions, 253 flow [2021-11-20 05:49:25,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 05:49:25,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-11-20 05:49:25,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 252 transitions. [2021-11-20 05:49:25,432 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.984375 [2021-11-20 05:49:25,433 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 252 transitions. [2021-11-20 05:49:25,434 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 252 transitions. [2021-11-20 05:49:25,436 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:49:25,438 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 252 transitions. [2021-11-20 05:49:25,442 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 126.0) internal successors, (252), 2 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:25,447 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:25,448 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:25,450 INFO L186 Difference]: Start difference. First operand has 125 places, 127 transitions, 257 flow. Second operand 2 states and 252 transitions. [2021-11-20 05:49:25,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 124 transitions, 253 flow [2021-11-20 05:49:25,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 124 transitions, 252 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-20 05:49:25,460 INFO L242 Difference]: Finished difference. Result has 125 places, 124 transitions, 250 flow [2021-11-20 05:49:25,462 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=250, PETRI_PLACES=125, PETRI_TRANSITIONS=124} [2021-11-20 05:49:25,466 INFO L334 CegarLoopForPetriNet]: 125 programPoint places, 0 predicate places. [2021-11-20 05:49:25,467 INFO L470 AbstractCegarLoop]: Abstraction has has 125 places, 124 transitions, 250 flow [2021-11-20 05:49:25,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 125.0) internal successors, (250), 2 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:25,467 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:49:25,467 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] [2021-11-20 05:49:25,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 05:49:25,468 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-20 05:49:25,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:49:25,469 INFO L85 PathProgramCache]: Analyzing trace with hash -932830209, now seen corresponding path program 1 times [2021-11-20 05:49:25,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:49:25,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645684903] [2021-11-20 05:49:25,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:49:25,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:49:25,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:49:25,526 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:49:25,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645684903] [2021-11-20 05:49:25,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645684903] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:49:25,527 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:49:25,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 05:49:25,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993146270] [2021-11-20 05:49:25,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:49:25,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:49:25,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:49:25,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:49:25,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:49:25,532 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 128 [2021-11-20 05:49:25,533 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 124 transitions, 250 flow. Second operand has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:25,533 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:49:25,533 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 128 [2021-11-20 05:49:25,533 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:49:25,576 INFO L129 PetriNetUnfolder]: 3/128 cut-off events. [2021-11-20 05:49:25,577 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-20 05:49:25,578 INFO L84 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 128 events. 3/128 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 225 event pairs, 0 based on Foata normal form. 0/119 useless extension candidates. Maximal degree in co-relation 142. Up to 9 conditions per place. [2021-11-20 05:49:25,580 INFO L132 encePairwiseOnDemand]: 125/128 looper letters, 10 selfloop transitions, 2 changer transitions 0/128 dead transitions. [2021-11-20 05:49:25,580 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 128 transitions, 282 flow [2021-11-20 05:49:25,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:49:25,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-20 05:49:25,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 364 transitions. [2021-11-20 05:49:25,584 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9479166666666666 [2021-11-20 05:49:25,584 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 364 transitions. [2021-11-20 05:49:25,584 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 364 transitions. [2021-11-20 05:49:25,585 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:49:25,585 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 364 transitions. [2021-11-20 05:49:25,587 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:25,590 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:25,591 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:25,591 INFO L186 Difference]: Start difference. First operand has 125 places, 124 transitions, 250 flow. Second operand 3 states and 364 transitions. [2021-11-20 05:49:25,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 128 transitions, 282 flow [2021-11-20 05:49:25,593 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 128 transitions, 282 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-11-20 05:49:25,596 INFO L242 Difference]: Finished difference. Result has 128 places, 125 transitions, 262 flow [2021-11-20 05:49:25,597 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=262, PETRI_PLACES=128, PETRI_TRANSITIONS=125} [2021-11-20 05:49:25,597 INFO L334 CegarLoopForPetriNet]: 125 programPoint places, 3 predicate places. [2021-11-20 05:49:25,598 INFO L470 AbstractCegarLoop]: Abstraction has has 128 places, 125 transitions, 262 flow [2021-11-20 05:49:25,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:25,598 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:49:25,599 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] [2021-11-20 05:49:25,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 05:49:25,599 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-20 05:49:25,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:49:25,600 INFO L85 PathProgramCache]: Analyzing trace with hash 527090186, now seen corresponding path program 1 times [2021-11-20 05:49:25,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:49:25,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34141954] [2021-11-20 05:49:25,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:49:25,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:49:25,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,682 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:49:25,682 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:49:25,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34141954] [2021-11-20 05:49:25,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34141954] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:49:25,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [393373018] [2021-11-20 05:49:25,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:49:25,684 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:49:25,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:49:25,693 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:49:25,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 05:49:25,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 05:49:25,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:49:26,025 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 05:49:26,025 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:49:26,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [393373018] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:49:26,026 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 05:49:26,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2021-11-20 05:49:26,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212580045] [2021-11-20 05:49:26,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:49:26,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:49:26,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:49:26,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:49:26,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:49:26,039 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 128 [2021-11-20 05:49:26,040 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 125 transitions, 262 flow. Second operand has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:26,040 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:49:26,040 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 128 [2021-11-20 05:49:26,040 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:49:26,135 INFO L129 PetriNetUnfolder]: 3/158 cut-off events. [2021-11-20 05:49:26,135 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-20 05:49:26,140 INFO L84 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 158 events. 3/158 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 162 event pairs, 0 based on Foata normal form. 0/148 useless extension candidates. Maximal degree in co-relation 178. Up to 10 conditions per place. [2021-11-20 05:49:26,142 INFO L132 encePairwiseOnDemand]: 125/128 looper letters, 11 selfloop transitions, 2 changer transitions 0/129 dead transitions. [2021-11-20 05:49:26,142 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 129 transitions, 296 flow [2021-11-20 05:49:26,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:49:26,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-20 05:49:26,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 362 transitions. [2021-11-20 05:49:26,148 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9427083333333334 [2021-11-20 05:49:26,149 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 362 transitions. [2021-11-20 05:49:26,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 362 transitions. [2021-11-20 05:49:26,150 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:49:26,150 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 362 transitions. [2021-11-20 05:49:26,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:26,156 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:26,157 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:26,157 INFO L186 Difference]: Start difference. First operand has 128 places, 125 transitions, 262 flow. Second operand 3 states and 362 transitions. [2021-11-20 05:49:26,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 129 transitions, 296 flow [2021-11-20 05:49:26,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 129 transitions, 294 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-20 05:49:26,171 INFO L242 Difference]: Finished difference. Result has 130 places, 126 transitions, 272 flow [2021-11-20 05:49:26,171 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=272, PETRI_PLACES=130, PETRI_TRANSITIONS=126} [2021-11-20 05:49:26,174 INFO L334 CegarLoopForPetriNet]: 125 programPoint places, 5 predicate places. [2021-11-20 05:49:26,174 INFO L470 AbstractCegarLoop]: Abstraction has has 130 places, 126 transitions, 272 flow [2021-11-20 05:49:26,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:26,175 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:49:26,175 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] [2021-11-20 05:49:26,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 05:49:26,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:49:26,388 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-20 05:49:26,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:49:26,389 INFO L85 PathProgramCache]: Analyzing trace with hash 18470129, now seen corresponding path program 1 times [2021-11-20 05:49:26,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:49:26,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062124640] [2021-11-20 05:49:26,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:49:26,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:49:26,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:26,492 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:49:26,492 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:49:26,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062124640] [2021-11-20 05:49:26,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062124640] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:49:26,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1434940504] [2021-11-20 05:49:26,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:49:26,493 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:49:26,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:49:26,501 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:49:26,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 05:49:26,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:26,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 05:49:26,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:49:26,750 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:49:26,750 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:49:26,893 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:49:26,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1434940504] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 05:49:26,894 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 05:49:26,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-11-20 05:49:26,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605010147] [2021-11-20 05:49:26,896 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 05:49:26,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:49:26,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:49:26,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:49:26,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:49:26,902 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 128 [2021-11-20 05:49:26,904 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 126 transitions, 272 flow. Second operand has 10 states, 10 states have (on average 118.1) internal successors, (1181), 10 states have internal predecessors, (1181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:26,904 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:49:26,905 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 128 [2021-11-20 05:49:26,905 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:49:27,021 INFO L129 PetriNetUnfolder]: 3/165 cut-off events. [2021-11-20 05:49:27,021 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-20 05:49:27,023 INFO L84 FinitePrefix]: Finished finitePrefix Result has 203 conditions, 165 events. 3/165 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 157 event pairs, 0 based on Foata normal form. 2/158 useless extension candidates. Maximal degree in co-relation 197. Up to 6 conditions per place. [2021-11-20 05:49:27,024 INFO L132 encePairwiseOnDemand]: 122/128 looper letters, 11 selfloop transitions, 9 changer transitions 0/136 dead transitions. [2021-11-20 05:49:27,024 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 136 transitions, 334 flow [2021-11-20 05:49:27,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 05:49:27,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-11-20 05:49:27,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1066 transitions. [2021-11-20 05:49:27,029 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9253472222222222 [2021-11-20 05:49:27,029 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1066 transitions. [2021-11-20 05:49:27,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1066 transitions. [2021-11-20 05:49:27,030 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:49:27,030 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1066 transitions. [2021-11-20 05:49:27,043 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 118.44444444444444) internal successors, (1066), 9 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:27,046 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:27,048 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:27,048 INFO L186 Difference]: Start difference. First operand has 130 places, 126 transitions, 272 flow. Second operand 9 states and 1066 transitions. [2021-11-20 05:49:27,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 136 transitions, 334 flow [2021-11-20 05:49:27,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 136 transitions, 332 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-20 05:49:27,053 INFO L242 Difference]: Finished difference. Result has 140 places, 132 transitions, 320 flow [2021-11-20 05:49:27,054 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=320, PETRI_PLACES=140, PETRI_TRANSITIONS=132} [2021-11-20 05:49:27,055 INFO L334 CegarLoopForPetriNet]: 125 programPoint places, 15 predicate places. [2021-11-20 05:49:27,055 INFO L470 AbstractCegarLoop]: Abstraction has has 140 places, 132 transitions, 320 flow [2021-11-20 05:49:27,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 118.1) internal successors, (1181), 10 states have internal predecessors, (1181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:27,057 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:49:27,057 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:49:27,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 05:49:27,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:49:27,272 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-20 05:49:27,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:49:27,273 INFO L85 PathProgramCache]: Analyzing trace with hash 697598481, now seen corresponding path program 2 times [2021-11-20 05:49:27,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:49:27,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491412482] [2021-11-20 05:49:27,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:49:27,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:49:27,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:27,371 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:49:27,371 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:49:27,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491412482] [2021-11-20 05:49:27,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491412482] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:49:27,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1688386882] [2021-11-20 05:49:27,372 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 05:49:27,372 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:49:27,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:49:27,374 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:49:27,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 05:49:27,436 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-20 05:49:27,436 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 05:49:27,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 05:49:27,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:49:27,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-20 05:49:27,583 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-11-20 05:49:27,584 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2021-11-20 05:49:27,628 INFO L354 Elim1Store]: treesize reduction 56, result has 23.3 percent of original size [2021-11-20 05:49:27,629 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 32 [2021-11-20 05:49:27,690 INFO L354 Elim1Store]: treesize reduction 104, result has 20.0 percent of original size [2021-11-20 05:49:27,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 44 [2021-11-20 05:49:27,720 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-20 05:49:27,721 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:49:27,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1688386882] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:49:27,721 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 05:49:27,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2021-11-20 05:49:27,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274206218] [2021-11-20 05:49:27,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:49:27,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:49:27,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:49:27,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:49:27,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-11-20 05:49:27,725 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 128 [2021-11-20 05:49:27,726 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 132 transitions, 320 flow. Second operand has 6 states, 6 states have (on average 83.66666666666667) internal successors, (502), 6 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:27,726 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:49:27,726 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 128 [2021-11-20 05:49:27,726 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:49:28,572 INFO L129 PetriNetUnfolder]: 871/2799 cut-off events. [2021-11-20 05:49:28,573 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-11-20 05:49:28,582 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4616 conditions, 2799 events. 871/2799 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 20286 event pairs, 424 based on Foata normal form. 0/2561 useless extension candidates. Maximal degree in co-relation 4608. Up to 1332 conditions per place. [2021-11-20 05:49:28,600 INFO L132 encePairwiseOnDemand]: 113/128 looper letters, 107 selfloop transitions, 38 changer transitions 0/234 dead transitions. [2021-11-20 05:49:28,601 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 234 transitions, 814 flow [2021-11-20 05:49:28,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 05:49:28,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-20 05:49:28,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 638 transitions. [2021-11-20 05:49:28,604 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8307291666666666 [2021-11-20 05:49:28,604 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 638 transitions. [2021-11-20 05:49:28,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 638 transitions. [2021-11-20 05:49:28,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:49:28,605 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 638 transitions. [2021-11-20 05:49:28,608 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 106.33333333333333) internal successors, (638), 6 states have internal predecessors, (638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:28,610 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 128.0) internal successors, (896), 7 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:28,611 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 128.0) internal successors, (896), 7 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:28,611 INFO L186 Difference]: Start difference. First operand has 140 places, 132 transitions, 320 flow. Second operand 6 states and 638 transitions. [2021-11-20 05:49:28,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 234 transitions, 814 flow [2021-11-20 05:49:28,616 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 234 transitions, 808 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-11-20 05:49:28,621 INFO L242 Difference]: Finished difference. Result has 149 places, 169 transitions, 568 flow [2021-11-20 05:49:28,621 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=568, PETRI_PLACES=149, PETRI_TRANSITIONS=169} [2021-11-20 05:49:28,624 INFO L334 CegarLoopForPetriNet]: 125 programPoint places, 24 predicate places. [2021-11-20 05:49:28,624 INFO L470 AbstractCegarLoop]: Abstraction has has 149 places, 169 transitions, 568 flow [2021-11-20 05:49:28,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.66666666666667) internal successors, (502), 6 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:28,625 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:49:28,625 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:49:28,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 05:49:28,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:49:28,840 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-20 05:49:28,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:49:28,841 INFO L85 PathProgramCache]: Analyzing trace with hash -198306197, now seen corresponding path program 1 times [2021-11-20 05:49:28,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:49:28,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255417864] [2021-11-20 05:49:28,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:49:28,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:49:28,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:28,973 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:49:28,973 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:49:28,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255417864] [2021-11-20 05:49:28,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255417864] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:49:28,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1868496090] [2021-11-20 05:49:28,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:49:28,974 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:49:28,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:49:28,975 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:49:28,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 05:49:29,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 05:49:29,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:49:29,201 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:49:29,202 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:49:29,467 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:49:29,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1868496090] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 05:49:29,468 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 05:49:29,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2021-11-20 05:49:29,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882703941] [2021-11-20 05:49:29,469 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 05:49:29,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-20 05:49:29,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:49:29,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-20 05:49:29,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2021-11-20 05:49:29,476 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 128 [2021-11-20 05:49:29,481 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 169 transitions, 568 flow. Second operand has 18 states, 18 states have (on average 118.27777777777777) internal successors, (2129), 18 states have internal predecessors, (2129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:29,482 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:49:29,482 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 128 [2021-11-20 05:49:29,482 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:49:29,849 INFO L129 PetriNetUnfolder]: 126/861 cut-off events. [2021-11-20 05:49:29,849 INFO L130 PetriNetUnfolder]: For 115/132 co-relation queries the response was YES. [2021-11-20 05:49:29,854 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1402 conditions, 861 events. 126/861 cut-off events. For 115/132 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 5093 event pairs, 17 based on Foata normal form. 4/819 useless extension candidates. Maximal degree in co-relation 1389. Up to 153 conditions per place. [2021-11-20 05:49:29,859 INFO L132 encePairwiseOnDemand]: 122/128 looper letters, 19 selfloop transitions, 21 changer transitions 0/193 dead transitions. [2021-11-20 05:49:29,860 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 193 transitions, 748 flow [2021-11-20 05:49:29,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-20 05:49:29,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-11-20 05:49:29,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2480 transitions. [2021-11-20 05:49:29,868 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9226190476190477 [2021-11-20 05:49:29,869 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2480 transitions. [2021-11-20 05:49:29,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2480 transitions. [2021-11-20 05:49:29,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:49:29,871 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2480 transitions. [2021-11-20 05:49:29,879 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 118.0952380952381) internal successors, (2480), 21 states have internal predecessors, (2480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:29,886 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 128.0) internal successors, (2816), 22 states have internal predecessors, (2816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:29,888 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 128.0) internal successors, (2816), 22 states have internal predecessors, (2816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:29,888 INFO L186 Difference]: Start difference. First operand has 149 places, 169 transitions, 568 flow. Second operand 21 states and 2480 transitions. [2021-11-20 05:49:29,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 193 transitions, 748 flow [2021-11-20 05:49:29,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 193 transitions, 748 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-11-20 05:49:29,904 INFO L242 Difference]: Finished difference. Result has 174 places, 182 transitions, 698 flow [2021-11-20 05:49:29,904 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=568, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=698, PETRI_PLACES=174, PETRI_TRANSITIONS=182} [2021-11-20 05:49:29,907 INFO L334 CegarLoopForPetriNet]: 125 programPoint places, 49 predicate places. [2021-11-20 05:49:29,907 INFO L470 AbstractCegarLoop]: Abstraction has has 174 places, 182 transitions, 698 flow [2021-11-20 05:49:29,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 118.27777777777777) internal successors, (2129), 18 states have internal predecessors, (2129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:29,909 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:49:29,909 INFO L254 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:49:29,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-20 05:49:30,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-20 05:49:30,148 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-20 05:49:30,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:49:30,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1911834453, now seen corresponding path program 2 times [2021-11-20 05:49:30,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:49:30,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819921610] [2021-11-20 05:49:30,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:49:30,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:49:30,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:30,369 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:49:30,369 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:49:30,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819921610] [2021-11-20 05:49:30,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819921610] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:49:30,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1520283308] [2021-11-20 05:49:30,370 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 05:49:30,370 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:49:30,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:49:30,372 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:49:30,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-20 05:49:30,430 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-20 05:49:30,430 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 05:49:30,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 05:49:30,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:49:30,536 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-20 05:49:30,566 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-11-20 05:49:30,566 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2021-11-20 05:49:30,614 INFO L354 Elim1Store]: treesize reduction 56, result has 23.3 percent of original size [2021-11-20 05:49:30,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 32 [2021-11-20 05:49:30,686 INFO L354 Elim1Store]: treesize reduction 104, result has 20.0 percent of original size [2021-11-20 05:49:30,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 44 [2021-11-20 05:49:30,720 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-20 05:49:30,720 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:49:30,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1520283308] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:49:30,721 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 05:49:30,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2021-11-20 05:49:30,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898915211] [2021-11-20 05:49:30,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:49:30,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:49:30,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:49:30,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:49:30,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2021-11-20 05:49:30,724 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 128 [2021-11-20 05:49:30,725 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 182 transitions, 698 flow. Second operand has 6 states, 6 states have (on average 83.66666666666667) internal successors, (502), 6 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:30,726 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:49:30,726 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 128 [2021-11-20 05:49:30,726 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:49:31,467 INFO L129 PetriNetUnfolder]: 935/3052 cut-off events. [2021-11-20 05:49:31,468 INFO L130 PetriNetUnfolder]: For 1208/1224 co-relation queries the response was YES. [2021-11-20 05:49:31,481 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6374 conditions, 3052 events. 935/3052 cut-off events. For 1208/1224 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 21855 event pairs, 355 based on Foata normal form. 0/2845 useless extension candidates. Maximal degree in co-relation 6356. Up to 1523 conditions per place. [2021-11-20 05:49:31,501 INFO L132 encePairwiseOnDemand]: 117/128 looper letters, 128 selfloop transitions, 30 changer transitions 0/260 dead transitions. [2021-11-20 05:49:31,501 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 260 transitions, 1332 flow [2021-11-20 05:49:31,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 05:49:31,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-20 05:49:31,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 590 transitions. [2021-11-20 05:49:31,504 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7682291666666666 [2021-11-20 05:49:31,504 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 590 transitions. [2021-11-20 05:49:31,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 590 transitions. [2021-11-20 05:49:31,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:49:31,505 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 590 transitions. [2021-11-20 05:49:31,507 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 98.33333333333333) internal successors, (590), 6 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:31,565 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 128.0) internal successors, (896), 7 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:31,566 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 128.0) internal successors, (896), 7 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:31,566 INFO L186 Difference]: Start difference. First operand has 174 places, 182 transitions, 698 flow. Second operand 6 states and 590 transitions. [2021-11-20 05:49:31,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 260 transitions, 1332 flow [2021-11-20 05:49:31,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 260 transitions, 1308 flow, removed 6 selfloop flow, removed 6 redundant places. [2021-11-20 05:49:31,581 INFO L242 Difference]: Finished difference. Result has 178 places, 211 transitions, 924 flow [2021-11-20 05:49:31,582 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=674, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=924, PETRI_PLACES=178, PETRI_TRANSITIONS=211} [2021-11-20 05:49:31,583 INFO L334 CegarLoopForPetriNet]: 125 programPoint places, 53 predicate places. [2021-11-20 05:49:31,583 INFO L470 AbstractCegarLoop]: Abstraction has has 178 places, 211 transitions, 924 flow [2021-11-20 05:49:31,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.66666666666667) internal successors, (502), 6 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:31,584 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:49:31,584 INFO L254 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:49:31,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-20 05:49:31,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:49:31,800 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-20 05:49:31,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:49:31,801 INFO L85 PathProgramCache]: Analyzing trace with hash 157483862, now seen corresponding path program 1 times [2021-11-20 05:49:31,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:49:31,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103569066] [2021-11-20 05:49:31,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:49:31,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:49:31,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:31,982 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:49:31,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:49:31,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103569066] [2021-11-20 05:49:31,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103569066] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:49:31,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1349311426] [2021-11-20 05:49:31,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:49:31,983 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:49:31,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:49:31,984 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:49:31,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-20 05:49:32,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:32,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-20 05:49:32,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:49:32,277 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:49:32,277 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:49:32,537 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:49:32,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1349311426] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 05:49:32,538 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 05:49:32,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2021-11-20 05:49:32,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735253131] [2021-11-20 05:49:32,539 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 05:49:32,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-20 05:49:32,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:49:32,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-20 05:49:32,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2021-11-20 05:49:32,546 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 128 [2021-11-20 05:49:32,550 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 211 transitions, 924 flow. Second operand has 23 states, 23 states have (on average 118.43478260869566) internal successors, (2724), 23 states have internal predecessors, (2724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:32,551 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:49:32,551 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 128 [2021-11-20 05:49:32,551 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:49:33,120 INFO L129 PetriNetUnfolder]: 227/1445 cut-off events. [2021-11-20 05:49:33,121 INFO L130 PetriNetUnfolder]: For 581/612 co-relation queries the response was YES. [2021-11-20 05:49:33,130 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2665 conditions, 1445 events. 227/1445 cut-off events. For 581/612 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 9799 event pairs, 10 based on Foata normal form. 7/1371 useless extension candidates. Maximal degree in co-relation 2642. Up to 201 conditions per place. [2021-11-20 05:49:33,138 INFO L132 encePairwiseOnDemand]: 122/128 looper letters, 25 selfloop transitions, 30 changer transitions 0/237 dead transitions. [2021-11-20 05:49:33,138 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 237 transitions, 1174 flow [2021-11-20 05:49:33,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-20 05:49:33,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2021-11-20 05:49:33,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 3538 transitions. [2021-11-20 05:49:33,150 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9213541666666667 [2021-11-20 05:49:33,150 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 3538 transitions. [2021-11-20 05:49:33,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 3538 transitions. [2021-11-20 05:49:33,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:49:33,154 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 3538 transitions. [2021-11-20 05:49:33,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 117.93333333333334) internal successors, (3538), 30 states have internal predecessors, (3538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:33,175 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 128.0) internal successors, (3968), 31 states have internal predecessors, (3968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:33,178 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 128.0) internal successors, (3968), 31 states have internal predecessors, (3968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:33,178 INFO L186 Difference]: Start difference. First operand has 178 places, 211 transitions, 924 flow. Second operand 30 states and 3538 transitions. [2021-11-20 05:49:33,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 237 transitions, 1174 flow [2021-11-20 05:49:33,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 237 transitions, 1174 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-11-20 05:49:33,191 INFO L242 Difference]: Finished difference. Result has 211 places, 221 transitions, 1076 flow [2021-11-20 05:49:33,192 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=924, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=211, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1076, PETRI_PLACES=211, PETRI_TRANSITIONS=221} [2021-11-20 05:49:33,194 INFO L334 CegarLoopForPetriNet]: 125 programPoint places, 86 predicate places. [2021-11-20 05:49:33,194 INFO L470 AbstractCegarLoop]: Abstraction has has 211 places, 221 transitions, 1076 flow [2021-11-20 05:49:33,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 118.43478260869566) internal successors, (2724), 23 states have internal predecessors, (2724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:33,196 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:49:33,196 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:49:33,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-20 05:49:33,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-11-20 05:49:33,412 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-20 05:49:33,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:49:33,412 INFO L85 PathProgramCache]: Analyzing trace with hash 360970443, now seen corresponding path program 2 times [2021-11-20 05:49:33,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:49:33,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667390201] [2021-11-20 05:49:33,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:49:33,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:49:33,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,547 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:49:33,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:49:33,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667390201] [2021-11-20 05:49:33,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667390201] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:49:33,548 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:49:33,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 05:49:33,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755333766] [2021-11-20 05:49:33,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:49:33,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:49:33,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:49:33,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:49:33,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:49:33,551 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 128 [2021-11-20 05:49:33,552 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 221 transitions, 1076 flow. Second operand has 6 states, 6 states have (on average 82.83333333333333) internal successors, (497), 6 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:33,552 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:49:33,552 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 128 [2021-11-20 05:49:33,553 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:49:34,748 INFO L129 PetriNetUnfolder]: 1343/4435 cut-off events. [2021-11-20 05:49:34,748 INFO L130 PetriNetUnfolder]: For 2217/2278 co-relation queries the response was YES. [2021-11-20 05:49:34,774 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9878 conditions, 4435 events. 1343/4435 cut-off events. For 2217/2278 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 34808 event pairs, 476 based on Foata normal form. 20/4212 useless extension candidates. Maximal degree in co-relation 9851. Up to 2326 conditions per place. [2021-11-20 05:49:34,802 INFO L132 encePairwiseOnDemand]: 105/128 looper letters, 130 selfloop transitions, 89 changer transitions 4/333 dead transitions. [2021-11-20 05:49:34,802 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 333 transitions, 1938 flow [2021-11-20 05:49:34,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 05:49:34,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-20 05:49:34,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 627 transitions. [2021-11-20 05:49:34,806 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.81640625 [2021-11-20 05:49:34,806 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 627 transitions. [2021-11-20 05:49:34,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 627 transitions. [2021-11-20 05:49:34,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:49:34,807 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 627 transitions. [2021-11-20 05:49:34,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 104.5) internal successors, (627), 6 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:34,812 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 128.0) internal successors, (896), 7 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:34,813 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 128.0) internal successors, (896), 7 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:34,813 INFO L186 Difference]: Start difference. First operand has 211 places, 221 transitions, 1076 flow. Second operand 6 states and 627 transitions. [2021-11-20 05:49:34,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 333 transitions, 1938 flow [2021-11-20 05:49:34,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 333 transitions, 1892 flow, removed 5 selfloop flow, removed 18 redundant places. [2021-11-20 05:49:34,835 INFO L242 Difference]: Finished difference. Result has 203 places, 300 transitions, 1768 flow [2021-11-20 05:49:34,836 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=1030, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1768, PETRI_PLACES=203, PETRI_TRANSITIONS=300} [2021-11-20 05:49:34,836 INFO L334 CegarLoopForPetriNet]: 125 programPoint places, 78 predicate places. [2021-11-20 05:49:34,837 INFO L470 AbstractCegarLoop]: Abstraction has has 203 places, 300 transitions, 1768 flow [2021-11-20 05:49:34,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 82.83333333333333) internal successors, (497), 6 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:34,837 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:49:34,838 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:49:34,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-20 05:49:34,838 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-20 05:49:34,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:49:34,839 INFO L85 PathProgramCache]: Analyzing trace with hash 26007824, now seen corresponding path program 1 times [2021-11-20 05:49:34,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:49:34,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692998908] [2021-11-20 05:49:34,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:49:34,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:49:34,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:34,952 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:49:34,952 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:49:34,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692998908] [2021-11-20 05:49:34,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692998908] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:49:34,953 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:49:34,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 05:49:34,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528930705] [2021-11-20 05:49:34,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:49:34,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:49:34,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:49:34,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:49:34,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:49:34,956 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 128 [2021-11-20 05:49:34,957 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 300 transitions, 1768 flow. Second operand has 6 states, 6 states have (on average 82.83333333333333) internal successors, (497), 6 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:34,957 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:49:34,958 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 128 [2021-11-20 05:49:34,958 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:49:36,262 INFO L129 PetriNetUnfolder]: 1436/4496 cut-off events. [2021-11-20 05:49:36,262 INFO L130 PetriNetUnfolder]: For 5098/5171 co-relation queries the response was YES. [2021-11-20 05:49:36,294 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12462 conditions, 4496 events. 1436/4496 cut-off events. For 5098/5171 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 34577 event pairs, 381 based on Foata normal form. 0/4339 useless extension candidates. Maximal degree in co-relation 12430. Up to 2527 conditions per place. [2021-11-20 05:49:36,324 INFO L132 encePairwiseOnDemand]: 113/128 looper letters, 189 selfloop transitions, 71 changer transitions 0/371 dead transitions. [2021-11-20 05:49:36,324 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 371 transitions, 2714 flow [2021-11-20 05:49:36,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 05:49:36,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-20 05:49:36,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 579 transitions. [2021-11-20 05:49:36,327 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.75390625 [2021-11-20 05:49:36,327 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 579 transitions. [2021-11-20 05:49:36,327 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 579 transitions. [2021-11-20 05:49:36,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:49:36,328 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 579 transitions. [2021-11-20 05:49:36,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 96.5) internal successors, (579), 6 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:36,332 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 128.0) internal successors, (896), 7 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:36,333 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 128.0) internal successors, (896), 7 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:36,333 INFO L186 Difference]: Start difference. First operand has 203 places, 300 transitions, 1768 flow. Second operand 6 states and 579 transitions. [2021-11-20 05:49:36,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 371 transitions, 2714 flow [2021-11-20 05:49:36,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 371 transitions, 2618 flow, removed 48 selfloop flow, removed 0 redundant places. [2021-11-20 05:49:36,369 INFO L242 Difference]: Finished difference. Result has 213 places, 353 transitions, 2348 flow [2021-11-20 05:49:36,369 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=1678, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2348, PETRI_PLACES=213, PETRI_TRANSITIONS=353} [2021-11-20 05:49:36,370 INFO L334 CegarLoopForPetriNet]: 125 programPoint places, 88 predicate places. [2021-11-20 05:49:36,370 INFO L470 AbstractCegarLoop]: Abstraction has has 213 places, 353 transitions, 2348 flow [2021-11-20 05:49:36,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 82.83333333333333) internal successors, (497), 6 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:36,371 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:49:36,371 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:49:36,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-20 05:49:36,372 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-20 05:49:36,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:49:36,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1752093046, now seen corresponding path program 1 times [2021-11-20 05:49:36,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:49:36,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927788092] [2021-11-20 05:49:36,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:49:36,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:49:36,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:36,761 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2021-11-20 05:49:36,761 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:49:36,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927788092] [2021-11-20 05:49:36,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927788092] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:49:36,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [825513514] [2021-11-20 05:49:36,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:49:36,762 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:49:36,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:49:36,768 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:49:36,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-20 05:49:36,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:36,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-20 05:49:36,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:49:37,252 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-20 05:49:37,437 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:49:37,438 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:49:37,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [825513514] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:49:37,438 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 05:49:37,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2021-11-20 05:49:37,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750512636] [2021-11-20 05:49:37,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:49:37,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:49:37,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:49:37,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:49:37,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2021-11-20 05:49:37,441 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 128 [2021-11-20 05:49:37,442 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 353 transitions, 2348 flow. Second operand has 10 states, 10 states have (on average 57.3) internal successors, (573), 10 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:37,442 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:49:37,442 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 128 [2021-11-20 05:49:37,442 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:49:42,271 INFO L129 PetriNetUnfolder]: 6096/15644 cut-off events. [2021-11-20 05:49:42,271 INFO L130 PetriNetUnfolder]: For 25237/25239 co-relation queries the response was YES. [2021-11-20 05:49:42,401 INFO L84 FinitePrefix]: Finished finitePrefix Result has 48285 conditions, 15644 events. 6096/15644 cut-off events. For 25237/25239 co-relation queries the response was YES. Maximal size of possible extension queue 292. Compared 135330 event pairs, 1514 based on Foata normal form. 13/15236 useless extension candidates. Maximal degree in co-relation 48248. Up to 5218 conditions per place. [2021-11-20 05:49:42,481 INFO L132 encePairwiseOnDemand]: 114/128 looper letters, 968 selfloop transitions, 16 changer transitions 8/1077 dead transitions. [2021-11-20 05:49:42,482 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 1077 transitions, 9184 flow [2021-11-20 05:49:42,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-20 05:49:42,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-11-20 05:49:42,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1041 transitions. [2021-11-20 05:49:42,487 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.677734375 [2021-11-20 05:49:42,487 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1041 transitions. [2021-11-20 05:49:42,487 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1041 transitions. [2021-11-20 05:49:42,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:49:42,488 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1041 transitions. [2021-11-20 05:49:42,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 86.75) internal successors, (1041), 12 states have internal predecessors, (1041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:42,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 128.0) internal successors, (1664), 13 states have internal predecessors, (1664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:42,496 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 128.0) internal successors, (1664), 13 states have internal predecessors, (1664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:42,496 INFO L186 Difference]: Start difference. First operand has 213 places, 353 transitions, 2348 flow. Second operand 12 states and 1041 transitions. [2021-11-20 05:49:42,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 1077 transitions, 9184 flow [2021-11-20 05:49:42,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 1077 transitions, 8938 flow, removed 123 selfloop flow, removed 0 redundant places. [2021-11-20 05:49:42,640 INFO L242 Difference]: Finished difference. Result has 232 places, 368 transitions, 2382 flow [2021-11-20 05:49:42,641 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=2266, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=341, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2382, PETRI_PLACES=232, PETRI_TRANSITIONS=368} [2021-11-20 05:49:42,642 INFO L334 CegarLoopForPetriNet]: 125 programPoint places, 107 predicate places. [2021-11-20 05:49:42,642 INFO L470 AbstractCegarLoop]: Abstraction has has 232 places, 368 transitions, 2382 flow [2021-11-20 05:49:42,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 57.3) internal successors, (573), 10 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:42,643 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:49:42,643 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:49:42,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-20 05:49:42,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:49:42,868 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-20 05:49:42,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:49:42,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1985203314, now seen corresponding path program 2 times [2021-11-20 05:49:42,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:49:42,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661156409] [2021-11-20 05:49:42,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:49:42,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:49:42,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:43,288 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2021-11-20 05:49:43,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:49:43,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661156409] [2021-11-20 05:49:43,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661156409] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:49:43,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2070516931] [2021-11-20 05:49:43,289 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 05:49:43,289 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:49:43,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:49:43,292 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:49:43,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-20 05:49:43,367 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-20 05:49:43,367 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 05:49:43,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-20 05:49:43,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:49:43,704 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-20 05:49:43,900 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:49:43,901 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:49:43,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2070516931] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:49:43,901 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 05:49:43,901 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2021-11-20 05:49:43,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505613770] [2021-11-20 05:49:43,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:49:43,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:49:43,902 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:49:43,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:49:43,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2021-11-20 05:49:43,904 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 128 [2021-11-20 05:49:43,905 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 368 transitions, 2382 flow. Second operand has 10 states, 10 states have (on average 57.3) internal successors, (573), 10 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:43,905 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:49:43,905 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 128 [2021-11-20 05:49:43,905 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:49:49,979 INFO L129 PetriNetUnfolder]: 8609/22426 cut-off events. [2021-11-20 05:49:49,980 INFO L130 PetriNetUnfolder]: For 37549/37555 co-relation queries the response was YES. [2021-11-20 05:49:50,199 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70664 conditions, 22426 events. 8609/22426 cut-off events. For 37549/37555 co-relation queries the response was YES. Maximal size of possible extension queue 371. Compared 202731 event pairs, 2380 based on Foata normal form. 17/21980 useless extension candidates. Maximal degree in co-relation 70618. Up to 8387 conditions per place. [2021-11-20 05:49:50,305 INFO L132 encePairwiseOnDemand]: 115/128 looper letters, 903 selfloop transitions, 21 changer transitions 0/1009 dead transitions. [2021-11-20 05:49:50,305 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 1009 transitions, 8684 flow [2021-11-20 05:49:50,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-20 05:49:50,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-11-20 05:49:50,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 966 transitions. [2021-11-20 05:49:50,308 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.62890625 [2021-11-20 05:49:50,308 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 966 transitions. [2021-11-20 05:49:50,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 966 transitions. [2021-11-20 05:49:50,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:49:50,309 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 966 transitions. [2021-11-20 05:49:50,311 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 80.5) internal successors, (966), 12 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:50,315 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 128.0) internal successors, (1664), 13 states have internal predecessors, (1664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:50,316 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 128.0) internal successors, (1664), 13 states have internal predecessors, (1664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:50,316 INFO L186 Difference]: Start difference. First operand has 232 places, 368 transitions, 2382 flow. Second operand 12 states and 966 transitions. [2021-11-20 05:49:50,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 1009 transitions, 8684 flow [2021-11-20 05:49:50,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 1009 transitions, 8683 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-20 05:49:50,489 INFO L242 Difference]: Finished difference. Result has 249 places, 384 transitions, 2551 flow [2021-11-20 05:49:50,490 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=2381, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=368, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2551, PETRI_PLACES=249, PETRI_TRANSITIONS=384} [2021-11-20 05:49:50,491 INFO L334 CegarLoopForPetriNet]: 125 programPoint places, 124 predicate places. [2021-11-20 05:49:50,491 INFO L470 AbstractCegarLoop]: Abstraction has has 249 places, 384 transitions, 2551 flow [2021-11-20 05:49:50,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 57.3) internal successors, (573), 10 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:50,509 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:49:50,509 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:49:50,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-20 05:49:50,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:49:50,722 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-20 05:49:50,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:49:50,723 INFO L85 PathProgramCache]: Analyzing trace with hash 940376937, now seen corresponding path program 1 times [2021-11-20 05:49:50,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:49:50,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492960202] [2021-11-20 05:49:50,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:49:50,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:49:50,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:51,100 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2021-11-20 05:49:51,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:49:51,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492960202] [2021-11-20 05:49:51,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492960202] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:49:51,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827671195] [2021-11-20 05:49:51,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:49:51,101 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:49:51,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:49:51,102 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:49:51,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-20 05:49:51,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:51,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-20 05:49:51,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:49:51,561 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-20 05:49:51,737 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:49:51,737 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:49:51,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [827671195] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:49:51,738 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 05:49:51,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2021-11-20 05:49:51,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002969074] [2021-11-20 05:49:51,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:49:51,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:49:51,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:49:51,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:49:51,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2021-11-20 05:49:51,741 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 128 [2021-11-20 05:49:51,742 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 384 transitions, 2551 flow. Second operand has 10 states, 10 states have (on average 57.3) internal successors, (573), 10 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:51,742 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:49:51,742 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 128 [2021-11-20 05:49:51,743 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:49:58,716 INFO L129 PetriNetUnfolder]: 9539/24673 cut-off events. [2021-11-20 05:49:58,716 INFO L130 PetriNetUnfolder]: For 46574/46588 co-relation queries the response was YES. [2021-11-20 05:49:59,008 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81075 conditions, 24673 events. 9539/24673 cut-off events. For 46574/46588 co-relation queries the response was YES. Maximal size of possible extension queue 368. Compared 227071 event pairs, 2909 based on Foata normal form. 18/24217 useless extension candidates. Maximal degree in co-relation 81022. Up to 7774 conditions per place. [2021-11-20 05:49:59,105 INFO L132 encePairwiseOnDemand]: 114/128 looper letters, 1058 selfloop transitions, 29 changer transitions 8/1180 dead transitions. [2021-11-20 05:49:59,105 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 1180 transitions, 10232 flow [2021-11-20 05:49:59,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 05:49:59,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-11-20 05:49:59,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1203 transitions. [2021-11-20 05:49:59,109 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6713169642857143 [2021-11-20 05:49:59,110 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1203 transitions. [2021-11-20 05:49:59,110 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1203 transitions. [2021-11-20 05:49:59,111 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:49:59,111 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1203 transitions. [2021-11-20 05:49:59,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 85.92857142857143) internal successors, (1203), 14 states have internal predecessors, (1203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:59,119 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 128.0) internal successors, (1920), 15 states have internal predecessors, (1920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:59,120 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 128.0) internal successors, (1920), 15 states have internal predecessors, (1920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:59,120 INFO L186 Difference]: Start difference. First operand has 249 places, 384 transitions, 2551 flow. Second operand 14 states and 1203 transitions. [2021-11-20 05:49:59,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 1180 transitions, 10232 flow [2021-11-20 05:49:59,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 1180 transitions, 10160 flow, removed 27 selfloop flow, removed 2 redundant places. [2021-11-20 05:49:59,374 INFO L242 Difference]: Finished difference. Result has 269 places, 402 transitions, 2790 flow [2021-11-20 05:49:59,375 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=2533, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=384, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=365, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2790, PETRI_PLACES=269, PETRI_TRANSITIONS=402} [2021-11-20 05:49:59,376 INFO L334 CegarLoopForPetriNet]: 125 programPoint places, 144 predicate places. [2021-11-20 05:49:59,376 INFO L470 AbstractCegarLoop]: Abstraction has has 269 places, 402 transitions, 2790 flow [2021-11-20 05:49:59,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 57.3) internal successors, (573), 10 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:49:59,376 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:49:59,377 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:49:59,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-20 05:49:59,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:49:59,581 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-20 05:49:59,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:49:59,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1122746634, now seen corresponding path program 3 times [2021-11-20 05:49:59,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:49:59,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587938534] [2021-11-20 05:49:59,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:49:59,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:49:59,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:59,916 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2021-11-20 05:49:59,916 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:49:59,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587938534] [2021-11-20 05:49:59,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587938534] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:49:59,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1793828491] [2021-11-20 05:49:59,917 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-20 05:49:59,917 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:49:59,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:49:59,919 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:49:59,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-20 05:49:59,992 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-11-20 05:49:59,992 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 05:49:59,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-20 05:49:59,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:50:00,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-20 05:50:00,556 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:50:00,557 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:50:00,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1793828491] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:50:00,557 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 05:50:00,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2021-11-20 05:50:00,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943548301] [2021-11-20 05:50:00,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:50:00,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:50:00,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:50:00,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:50:00,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2021-11-20 05:50:00,561 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 128 [2021-11-20 05:50:00,562 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 402 transitions, 2790 flow. Second operand has 10 states, 10 states have (on average 57.3) internal successors, (573), 10 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:00,562 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:50:00,562 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 128 [2021-11-20 05:50:00,562 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:50:09,039 INFO L129 PetriNetUnfolder]: 11291/29391 cut-off events. [2021-11-20 05:50:09,039 INFO L130 PetriNetUnfolder]: For 65210/65244 co-relation queries the response was YES. [2021-11-20 05:50:09,420 INFO L84 FinitePrefix]: Finished finitePrefix Result has 98802 conditions, 29391 events. 11291/29391 cut-off events. For 65210/65244 co-relation queries the response was YES. Maximal size of possible extension queue 441. Compared 278459 event pairs, 3186 based on Foata normal form. 25/28805 useless extension candidates. Maximal degree in co-relation 98740. Up to 8434 conditions per place. [2021-11-20 05:50:09,518 INFO L132 encePairwiseOnDemand]: 114/128 looper letters, 1090 selfloop transitions, 38 changer transitions 0/1213 dead transitions. [2021-11-20 05:50:09,519 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 1213 transitions, 10881 flow [2021-11-20 05:50:09,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 05:50:09,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-11-20 05:50:09,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1160 transitions. [2021-11-20 05:50:09,522 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6473214285714286 [2021-11-20 05:50:09,522 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1160 transitions. [2021-11-20 05:50:09,522 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1160 transitions. [2021-11-20 05:50:09,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:50:09,523 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1160 transitions. [2021-11-20 05:50:09,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 82.85714285714286) internal successors, (1160), 14 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:09,529 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 128.0) internal successors, (1920), 15 states have internal predecessors, (1920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:09,530 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 128.0) internal successors, (1920), 15 states have internal predecessors, (1920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:09,530 INFO L186 Difference]: Start difference. First operand has 269 places, 402 transitions, 2790 flow. Second operand 14 states and 1160 transitions. [2021-11-20 05:50:09,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 1213 transitions, 10881 flow [2021-11-20 05:50:09,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 1213 transitions, 10768 flow, removed 7 selfloop flow, removed 6 redundant places. [2021-11-20 05:50:09,761 INFO L242 Difference]: Finished difference. Result has 285 places, 420 transitions, 3068 flow [2021-11-20 05:50:09,762 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=2758, PETRI_DIFFERENCE_MINUEND_PLACES=263, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=402, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=374, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=3068, PETRI_PLACES=285, PETRI_TRANSITIONS=420} [2021-11-20 05:50:09,763 INFO L334 CegarLoopForPetriNet]: 125 programPoint places, 160 predicate places. [2021-11-20 05:50:09,763 INFO L470 AbstractCegarLoop]: Abstraction has has 285 places, 420 transitions, 3068 flow [2021-11-20 05:50:09,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 57.3) internal successors, (573), 10 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:09,764 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:50:09,764 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:50:09,794 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2021-11-20 05:50:09,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-20 05:50:09,986 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-20 05:50:09,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:50:09,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1136841255, now seen corresponding path program 2 times [2021-11-20 05:50:09,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:50:09,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023974647] [2021-11-20 05:50:09,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:09,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:50:10,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:10,298 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2021-11-20 05:50:10,298 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:50:10,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023974647] [2021-11-20 05:50:10,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023974647] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:50:10,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1693019827] [2021-11-20 05:50:10,299 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 05:50:10,299 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:50:10,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:50:10,301 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:50:10,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-20 05:50:10,365 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-20 05:50:10,365 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 05:50:10,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-20 05:50:10,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:50:10,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-20 05:50:11,053 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:50:11,053 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:50:11,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1693019827] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:50:11,054 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 05:50:11,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2021-11-20 05:50:11,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056590132] [2021-11-20 05:50:11,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:50:11,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:50:11,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:50:11,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:50:11,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-11-20 05:50:11,057 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 128 [2021-11-20 05:50:11,058 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 420 transitions, 3068 flow. Second operand has 10 states, 10 states have (on average 57.3) internal successors, (573), 10 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:11,058 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:50:11,058 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 128 [2021-11-20 05:50:11,058 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:50:20,633 INFO L129 PetriNetUnfolder]: 12269/31766 cut-off events. [2021-11-20 05:50:20,633 INFO L130 PetriNetUnfolder]: For 82380/82439 co-relation queries the response was YES. [2021-11-20 05:50:21,138 INFO L84 FinitePrefix]: Finished finitePrefix Result has 110295 conditions, 31766 events. 12269/31766 cut-off events. For 82380/82439 co-relation queries the response was YES. Maximal size of possible extension queue 435. Compared 306833 event pairs, 3767 based on Foata normal form. 33/31188 useless extension candidates. Maximal degree in co-relation 110224. Up to 11361 conditions per place. [2021-11-20 05:50:21,263 INFO L132 encePairwiseOnDemand]: 114/128 looper letters, 1202 selfloop transitions, 41 changer transitions 4/1332 dead transitions. [2021-11-20 05:50:21,263 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 1332 transitions, 12470 flow [2021-11-20 05:50:21,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 05:50:21,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-11-20 05:50:21,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1191 transitions. [2021-11-20 05:50:21,267 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6646205357142857 [2021-11-20 05:50:21,268 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1191 transitions. [2021-11-20 05:50:21,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1191 transitions. [2021-11-20 05:50:21,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:50:21,269 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1191 transitions. [2021-11-20 05:50:21,272 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 85.07142857142857) internal successors, (1191), 14 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:21,276 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 128.0) internal successors, (1920), 15 states have internal predecessors, (1920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:21,277 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 128.0) internal successors, (1920), 15 states have internal predecessors, (1920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:21,277 INFO L186 Difference]: Start difference. First operand has 285 places, 420 transitions, 3068 flow. Second operand 14 states and 1191 transitions. [2021-11-20 05:50:21,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 1332 transitions, 12470 flow [2021-11-20 05:50:21,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 1332 transitions, 12346 flow, removed 16 selfloop flow, removed 6 redundant places. [2021-11-20 05:50:21,689 INFO L242 Difference]: Finished difference. Result has 299 places, 441 transitions, 3449 flow [2021-11-20 05:50:21,689 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=3011, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=420, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=387, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=3449, PETRI_PLACES=299, PETRI_TRANSITIONS=441} [2021-11-20 05:50:21,690 INFO L334 CegarLoopForPetriNet]: 125 programPoint places, 174 predicate places. [2021-11-20 05:50:21,690 INFO L470 AbstractCegarLoop]: Abstraction has has 299 places, 441 transitions, 3449 flow [2021-11-20 05:50:21,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 57.3) internal successors, (573), 10 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:21,690 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:50:21,691 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:50:21,718 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2021-11-20 05:50:21,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-20 05:50:21,900 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-20 05:50:21,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:50:21,901 INFO L85 PathProgramCache]: Analyzing trace with hash 257044046, now seen corresponding path program 4 times [2021-11-20 05:50:21,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:50:21,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048323987] [2021-11-20 05:50:21,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:21,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:50:21,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:22,513 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2021-11-20 05:50:22,514 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:50:22,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048323987] [2021-11-20 05:50:22,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048323987] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:50:22,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1038695979] [2021-11-20 05:50:22,514 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-20 05:50:22,514 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:50:22,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:50:22,515 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:50:22,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-20 05:50:22,643 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-20 05:50:22,643 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 05:50:22,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-20 05:50:22,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:50:22,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-20 05:50:22,880 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-20 05:50:22,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:50:22,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-20 05:50:22,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:50:22,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:50:22,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:50:22,966 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-11-20 05:50:23,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:50:23,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:50:23,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:50:23,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:50:23,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:50:23,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:50:23,021 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2021-11-20 05:50:23,194 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:50:23,200 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-20 05:50:23,200 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 11 [2021-11-20 05:50:23,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:50:23,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:50:23,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:50:23,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:50:23,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:50:23,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:50:23,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2021-11-20 05:50:23,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:50:23,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:50:23,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:50:23,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:50:23,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:50:23,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:50:23,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:50:23,382 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-20 05:50:23,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:50:23,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:50:23,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:50:23,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:50:23,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:50:23,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:50:23,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:50:23,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:50:23,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:50:23,452 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 78 [2021-11-20 05:50:23,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:50:23,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:50:23,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:50:23,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:50:23,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:50:23,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:50:23,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:50:23,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:50:23,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:50:23,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:50:23,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:50:23,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:50:23,542 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 13 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 90 [2021-11-20 05:50:23,925 INFO L354 Elim1Store]: treesize reduction 516, result has 10.7 percent of original size [2021-11-20 05:50:23,925 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 35 case distinctions, treesize of input 84 treesize of output 97 [2021-11-20 05:50:24,044 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:50:24,045 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:50:24,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1038695979] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:50:24,045 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 05:50:24,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [11] total 28 [2021-11-20 05:50:24,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666475535] [2021-11-20 05:50:24,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:50:24,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-20 05:50:24,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:50:24,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-20 05:50:24,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=661, Unknown=0, NotChecked=0, Total=756 [2021-11-20 05:50:24,048 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 128 [2021-11-20 05:50:24,050 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 441 transitions, 3449 flow. Second operand has 19 states, 19 states have (on average 56.68421052631579) internal successors, (1077), 19 states have internal predecessors, (1077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:24,050 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:50:24,050 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 128 [2021-11-20 05:50:24,050 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:50:36,764 INFO L129 PetriNetUnfolder]: 14066/36637 cut-off events. [2021-11-20 05:50:36,765 INFO L130 PetriNetUnfolder]: For 108995/109080 co-relation queries the response was YES. [2021-11-20 05:50:37,336 INFO L84 FinitePrefix]: Finished finitePrefix Result has 128886 conditions, 36637 events. 14066/36637 cut-off events. For 108995/109080 co-relation queries the response was YES. Maximal size of possible extension queue 512. Compared 363265 event pairs, 4007 based on Foata normal form. 26/35907 useless extension candidates. Maximal degree in co-relation 128808. Up to 8750 conditions per place. [2021-11-20 05:50:37,460 INFO L132 encePairwiseOnDemand]: 100/128 looper letters, 1339 selfloop transitions, 114 changer transitions 0/1539 dead transitions. [2021-11-20 05:50:37,461 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 1539 transitions, 14614 flow [2021-11-20 05:50:37,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-20 05:50:37,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2021-11-20 05:50:37,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 1800 transitions. [2021-11-20 05:50:37,465 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6114130434782609 [2021-11-20 05:50:37,465 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 1800 transitions. [2021-11-20 05:50:37,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 1800 transitions. [2021-11-20 05:50:37,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:50:37,466 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 1800 transitions. [2021-11-20 05:50:37,470 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 78.26086956521739) internal successors, (1800), 23 states have internal predecessors, (1800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:37,475 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 128.0) internal successors, (3072), 24 states have internal predecessors, (3072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:37,477 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 128.0) internal successors, (3072), 24 states have internal predecessors, (3072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:37,477 INFO L186 Difference]: Start difference. First operand has 299 places, 441 transitions, 3449 flow. Second operand 23 states and 1800 transitions. [2021-11-20 05:50:37,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 321 places, 1539 transitions, 14614 flow [2021-11-20 05:50:37,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 1539 transitions, 14431 flow, removed 60 selfloop flow, removed 5 redundant places. [2021-11-20 05:50:37,990 INFO L242 Difference]: Finished difference. Result has 333 places, 526 transitions, 4916 flow [2021-11-20 05:50:37,990 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=3328, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=441, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=352, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=4916, PETRI_PLACES=333, PETRI_TRANSITIONS=526} [2021-11-20 05:50:37,991 INFO L334 CegarLoopForPetriNet]: 125 programPoint places, 208 predicate places. [2021-11-20 05:50:37,991 INFO L470 AbstractCegarLoop]: Abstraction has has 333 places, 526 transitions, 4916 flow [2021-11-20 05:50:37,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 56.68421052631579) internal successors, (1077), 19 states have internal predecessors, (1077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:37,992 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:50:37,992 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:50:38,024 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2021-11-20 05:50:38,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-20 05:50:38,193 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-20 05:50:38,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:50:38,193 INFO L85 PathProgramCache]: Analyzing trace with hash -92825393, now seen corresponding path program 3 times [2021-11-20 05:50:38,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:50:38,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977585607] [2021-11-20 05:50:38,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:38,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:50:38,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:38,548 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2021-11-20 05:50:38,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:50:38,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977585607] [2021-11-20 05:50:38,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977585607] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:50:38,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421624312] [2021-11-20 05:50:38,549 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-20 05:50:38,549 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:50:38,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:50:38,550 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:50:38,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cc0ab1-082f-41f2-898a-c495cc1bcae7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-20 05:50:38,620 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-11-20 05:50:38,620 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 05:50:38,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-20 05:50:38,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:50:38,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-20 05:50:39,322 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:50:39,322 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:50:39,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [421624312] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:50:39,322 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 05:50:39,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2021-11-20 05:50:39,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619506763] [2021-11-20 05:50:39,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:50:39,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:50:39,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:50:39,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:50:39,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-11-20 05:50:39,326 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 128 [2021-11-20 05:50:39,327 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 526 transitions, 4916 flow. Second operand has 10 states, 10 states have (on average 57.3) internal successors, (573), 10 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:39,327 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:50:39,327 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 128 [2021-11-20 05:50:39,327 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand