./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1d35278-e2f7-4db0-95ea-155bf283ce00/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1d35278-e2f7-4db0-95ea-155bf283ce00/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1d35278-e2f7-4db0-95ea-155bf283ce00/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1d35278-e2f7-4db0-95ea-155bf283ce00/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1d35278-e2f7-4db0-95ea-155bf283ce00/bin/uautomizer-DrprNOufMa/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1d35278-e2f7-4db0-95ea-155bf283ce00/bin/uautomizer-DrprNOufMa --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9205365dcda04af07212d180b1c6367c5de79b6e0d2e09ec11b949fed58626f5 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 20:08:06,931 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 20:08:06,933 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 20:08:06,962 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 20:08:06,962 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 20:08:06,963 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 20:08:06,965 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 20:08:06,967 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 20:08:06,969 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 20:08:06,970 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 20:08:06,971 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 20:08:06,972 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 20:08:06,973 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 20:08:06,974 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 20:08:06,975 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 20:08:06,977 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 20:08:06,977 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 20:08:06,978 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 20:08:06,981 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 20:08:06,983 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 20:08:06,985 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 20:08:06,987 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 20:08:06,988 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 20:08:06,989 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 20:08:06,992 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 20:08:06,993 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 20:08:06,993 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 20:08:06,994 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 20:08:06,995 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 20:08:06,996 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 20:08:06,996 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 20:08:06,997 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 20:08:06,998 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 20:08:06,999 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 20:08:07,000 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 20:08:07,000 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 20:08:07,001 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 20:08:07,001 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 20:08:07,001 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 20:08:07,002 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 20:08:07,003 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 20:08:07,003 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1d35278-e2f7-4db0-95ea-155bf283ce00/bin/uautomizer-DrprNOufMa/config/svcomp-DataRace-32bit-Automizer_Default.epf [2021-12-06 20:08:07,024 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 20:08:07,025 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 20:08:07,025 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 20:08:07,025 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 20:08:07,026 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 20:08:07,026 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 20:08:07,026 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 20:08:07,027 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 20:08:07,027 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 20:08:07,027 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 20:08:07,027 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 20:08:07,027 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 20:08:07,027 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 20:08:07,028 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 20:08:07,028 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 20:08:07,028 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 20:08:07,028 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 20:08:07,028 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 20:08:07,028 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-12-06 20:08:07,028 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 20:08:07,028 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 20:08:07,029 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 20:08:07,029 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 20:08:07,029 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 20:08:07,029 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 20:08:07,029 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 20:08:07,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 20:08:07,029 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 20:08:07,029 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 20:08:07,029 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 20:08:07,030 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 20:08:07,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 20:08:07,030 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 20:08:07,030 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 20:08:07,030 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 20:08:07,030 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 20:08:07,031 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_f1d35278-e2f7-4db0-95ea-155bf283ce00/bin/uautomizer-DrprNOufMa/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1d35278-e2f7-4db0-95ea-155bf283ce00/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9205365dcda04af07212d180b1c6367c5de79b6e0d2e09ec11b949fed58626f5 [2021-12-06 20:08:07,209 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 20:08:07,223 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 20:08:07,225 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 20:08:07,226 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 20:08:07,226 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 20:08:07,227 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1d35278-e2f7-4db0-95ea-155bf283ce00/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.i [2021-12-06 20:08:07,267 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1d35278-e2f7-4db0-95ea-155bf283ce00/bin/uautomizer-DrprNOufMa/data/6bfbf6dec/9b768d6e39ea40d8a2793e0f1761d795/FLAG7b55305bd [2021-12-06 20:08:07,679 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 20:08:07,679 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1d35278-e2f7-4db0-95ea-155bf283ce00/sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.i [2021-12-06 20:08:07,689 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1d35278-e2f7-4db0-95ea-155bf283ce00/bin/uautomizer-DrprNOufMa/data/6bfbf6dec/9b768d6e39ea40d8a2793e0f1761d795/FLAG7b55305bd [2021-12-06 20:08:07,699 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1d35278-e2f7-4db0-95ea-155bf283ce00/bin/uautomizer-DrprNOufMa/data/6bfbf6dec/9b768d6e39ea40d8a2793e0f1761d795 [2021-12-06 20:08:07,700 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 20:08:07,701 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 20:08:07,702 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 20:08:07,702 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 20:08:07,705 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 20:08:07,705 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:08:07" (1/1) ... [2021-12-06 20:08:07,706 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@653a8af7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:08:07, skipping insertion in model container [2021-12-06 20:08:07,706 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:08:07" (1/1) ... [2021-12-06 20:08:07,711 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 20:08:07,738 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 20:08:07,953 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:08:07,965 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 20:08:07,996 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:08:08,022 INFO L208 MainTranslator]: Completed translation [2021-12-06 20:08:08,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:08:08 WrapperNode [2021-12-06 20:08:08,022 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 20:08:08,023 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 20:08:08,023 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 20:08:08,023 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 20:08:08,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:08:08" (1/1) ... [2021-12-06 20:08:08,039 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:08:08" (1/1) ... [2021-12-06 20:08:08,058 INFO L137 Inliner]: procedures = 161, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 73 [2021-12-06 20:08:08,058 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 20:08:08,058 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 20:08:08,058 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 20:08:08,059 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 20:08:08,065 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:08:08" (1/1) ... [2021-12-06 20:08:08,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:08:08" (1/1) ... [2021-12-06 20:08:08,069 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:08:08" (1/1) ... [2021-12-06 20:08:08,070 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:08:08" (1/1) ... [2021-12-06 20:08:08,084 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:08:08" (1/1) ... [2021-12-06 20:08:08,088 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:08:08" (1/1) ... [2021-12-06 20:08:08,090 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:08:08" (1/1) ... [2021-12-06 20:08:08,093 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 20:08:08,094 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 20:08:08,094 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 20:08:08,094 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 20:08:08,095 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:08:08" (1/1) ... [2021-12-06 20:08:08,100 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 20:08:08,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1d35278-e2f7-4db0-95ea-155bf283ce00/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:08:08,119 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1d35278-e2f7-4db0-95ea-155bf283ce00/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 20:08:08,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1d35278-e2f7-4db0-95ea-155bf283ce00/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 20:08:08,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 20:08:08,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 20:08:08,156 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-12-06 20:08:08,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 20:08:08,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 20:08:08,156 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-12-06 20:08:08,156 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-12-06 20:08:08,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 20:08:08,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 20:08:08,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 20:08:08,158 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-06 20:08:08,242 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 20:08:08,243 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 20:08:08,415 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 20:08:08,421 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 20:08:08,421 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-06 20:08:08,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:08:08 BoogieIcfgContainer [2021-12-06 20:08:08,423 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 20:08:08,424 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 20:08:08,424 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 20:08:08,426 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 20:08:08,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 08:08:07" (1/3) ... [2021-12-06 20:08:08,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51cc08ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 08:08:08, skipping insertion in model container [2021-12-06 20:08:08,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:08:08" (2/3) ... [2021-12-06 20:08:08,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51cc08ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 08:08:08, skipping insertion in model container [2021-12-06 20:08:08,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:08:08" (3/3) ... [2021-12-06 20:08:08,429 INFO L111 eAbstractionObserver]: Analyzing ICFG 06-symbeq_23-idxsense_nr.i [2021-12-06 20:08:08,436 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-06 20:08:08,437 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 20:08:08,437 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-12-06 20:08:08,437 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-06 20:08:08,458 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,458 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,458 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,458 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,459 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,459 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,459 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,459 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,459 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,459 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,460 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,460 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,460 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,460 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,461 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,461 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,461 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,461 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,461 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,461 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,461 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,462 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,462 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,462 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,462 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,462 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,462 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,463 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,463 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,463 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,463 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,463 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,463 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,464 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,464 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,464 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,464 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,464 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,464 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,464 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,465 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,465 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,465 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,465 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,467 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,468 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,468 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,468 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,468 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,468 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,468 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,469 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:08,470 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-12-06 20:08:08,506 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 20:08:08,512 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 20:08:08,512 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-12-06 20:08:08,521 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 107 places, 105 transitions, 215 flow [2021-12-06 20:08:08,557 INFO L129 PetriNetUnfolder]: 2/104 cut-off events. [2021-12-06 20:08:08,557 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-06 20:08:08,559 INFO L84 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 104 events. 2/104 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 26. Up to 2 conditions per place. [2021-12-06 20:08:08,559 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 105 transitions, 215 flow [2021-12-06 20:08:08,563 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 106 places, 104 transitions, 211 flow [2021-12-06 20:08:08,573 INFO L129 PetriNetUnfolder]: 2/45 cut-off events. [2021-12-06 20:08:08,573 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-06 20:08:08,573 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:08:08,574 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] [2021-12-06 20:08:08,574 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-12-06 20:08:08,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:08:08,578 INFO L85 PathProgramCache]: Analyzing trace with hash 513122938, now seen corresponding path program 1 times [2021-12-06 20:08:08,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:08:08,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130342769] [2021-12-06 20:08:08,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:08:08,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:08:08,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:08:08,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:08:08,727 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:08:08,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130342769] [2021-12-06 20:08:08,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130342769] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:08:08,728 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:08:08,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 20:08:08,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594408979] [2021-12-06 20:08:08,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:08:08,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-06 20:08:08,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:08:08,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-06 20:08:08,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 20:08:08,764 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 105 [2021-12-06 20:08:08,767 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 104 transitions, 211 flow. Second operand has 2 states, 2 states have (on average 104.0) internal successors, (208), 2 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:08,767 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:08:08,767 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 105 [2021-12-06 20:08:08,768 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:08:08,793 INFO L129 PetriNetUnfolder]: 1/103 cut-off events. [2021-12-06 20:08:08,793 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-06 20:08:08,793 INFO L84 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 103 events. 1/103 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 0 based on Foata normal form. 1/97 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2021-12-06 20:08:08,794 INFO L132 encePairwiseOnDemand]: 104/105 looper letters, 1 selfloop transitions, 0 changer transitions 0/103 dead transitions. [2021-12-06 20:08:08,794 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 103 transitions, 211 flow [2021-12-06 20:08:08,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 20:08:08,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-12-06 20:08:08,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 208 transitions. [2021-12-06 20:08:08,804 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9904761904761905 [2021-12-06 20:08:08,805 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 208 transitions. [2021-12-06 20:08:08,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 208 transitions. [2021-12-06 20:08:08,806 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:08:08,808 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 208 transitions. [2021-12-06 20:08:08,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 104.0) internal successors, (208), 2 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:08,814 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:08,814 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:08,816 INFO L186 Difference]: Start difference. First operand has 106 places, 104 transitions, 211 flow. Second operand 2 states and 208 transitions. [2021-12-06 20:08:08,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 103 transitions, 211 flow [2021-12-06 20:08:08,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 103 transitions, 210 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-06 20:08:08,822 INFO L242 Difference]: Finished difference. Result has 106 places, 103 transitions, 208 flow [2021-12-06 20:08:08,824 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=208, PETRI_PLACES=106, PETRI_TRANSITIONS=103} [2021-12-06 20:08:08,827 INFO L334 CegarLoopForPetriNet]: 106 programPoint places, 0 predicate places. [2021-12-06 20:08:08,827 INFO L470 AbstractCegarLoop]: Abstraction has has 106 places, 103 transitions, 208 flow [2021-12-06 20:08:08,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 104.0) internal successors, (208), 2 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:08,827 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:08:08,827 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] [2021-12-06 20:08:08,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 20:08:08,828 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-12-06 20:08:08,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:08:08,828 INFO L85 PathProgramCache]: Analyzing trace with hash 2020674747, now seen corresponding path program 1 times [2021-12-06 20:08:08,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:08:08,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551140844] [2021-12-06 20:08:08,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:08:08,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:08:08,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:08:08,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:08:08,888 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:08:08,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551140844] [2021-12-06 20:08:08,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551140844] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:08:08,888 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:08:08,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 20:08:08,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965794252] [2021-12-06 20:08:08,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:08:08,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 20:08:08,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:08:08,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 20:08:08,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:08:08,892 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 105 [2021-12-06 20:08:08,892 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 103 transitions, 208 flow. Second operand has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:08,892 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:08:08,892 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 105 [2021-12-06 20:08:08,892 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:08:08,934 INFO L129 PetriNetUnfolder]: 1/107 cut-off events. [2021-12-06 20:08:08,934 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-06 20:08:08,934 INFO L84 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 107 events. 1/107 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 71 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 121. Up to 9 conditions per place. [2021-12-06 20:08:08,935 INFO L132 encePairwiseOnDemand]: 102/105 looper letters, 10 selfloop transitions, 2 changer transitions 0/107 dead transitions. [2021-12-06 20:08:08,935 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 107 transitions, 240 flow [2021-12-06 20:08:08,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 20:08:08,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-06 20:08:08,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 301 transitions. [2021-12-06 20:08:08,938 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9555555555555556 [2021-12-06 20:08:08,938 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 301 transitions. [2021-12-06 20:08:08,938 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 301 transitions. [2021-12-06 20:08:08,939 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:08:08,939 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 301 transitions. [2021-12-06 20:08:08,941 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:08,943 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:08,943 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:08,943 INFO L186 Difference]: Start difference. First operand has 106 places, 103 transitions, 208 flow. Second operand 3 states and 301 transitions. [2021-12-06 20:08:08,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 107 transitions, 240 flow [2021-12-06 20:08:08,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 107 transitions, 240 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-06 20:08:08,946 INFO L242 Difference]: Finished difference. Result has 109 places, 104 transitions, 220 flow [2021-12-06 20:08:08,947 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=220, PETRI_PLACES=109, PETRI_TRANSITIONS=104} [2021-12-06 20:08:08,947 INFO L334 CegarLoopForPetriNet]: 106 programPoint places, 3 predicate places. [2021-12-06 20:08:08,948 INFO L470 AbstractCegarLoop]: Abstraction has has 109 places, 104 transitions, 220 flow [2021-12-06 20:08:08,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:08,948 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:08:08,948 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] [2021-12-06 20:08:08,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 20:08:08,948 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-12-06 20:08:08,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:08:08,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1130899873, now seen corresponding path program 1 times [2021-12-06 20:08:08,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:08:08,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262973877] [2021-12-06 20:08:08,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:08:08,950 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:08:08,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:08:09,027 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:08:09,027 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:08:09,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262973877] [2021-12-06 20:08:09,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262973877] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 20:08:09,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [840906656] [2021-12-06 20:08:09,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:08:09,028 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:08:09,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1d35278-e2f7-4db0-95ea-155bf283ce00/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:08:09,029 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1d35278-e2f7-4db0-95ea-155bf283ce00/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 20:08:09,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1d35278-e2f7-4db0-95ea-155bf283ce00/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-06 20:08:09,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:08:09,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 20:08:09,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:08:09,174 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:08:09,174 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:08:09,231 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:08:09,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [840906656] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 20:08:09,231 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 20:08:09,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-12-06 20:08:09,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020310295] [2021-12-06 20:08:09,231 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 20:08:09,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 20:08:09,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:08:09,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 20:08:09,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-12-06 20:08:09,234 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 105 [2021-12-06 20:08:09,236 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 104 transitions, 220 flow. Second operand has 10 states, 10 states have (on average 97.1) internal successors, (971), 10 states have internal predecessors, (971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:09,236 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:08:09,236 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 105 [2021-12-06 20:08:09,236 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:08:09,303 INFO L129 PetriNetUnfolder]: 1/114 cut-off events. [2021-12-06 20:08:09,304 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-06 20:08:09,304 INFO L84 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 114 events. 1/114 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 66 event pairs, 0 based on Foata normal form. 2/110 useless extension candidates. Maximal degree in co-relation 142. Up to 6 conditions per place. [2021-12-06 20:08:09,305 INFO L132 encePairwiseOnDemand]: 99/105 looper letters, 11 selfloop transitions, 9 changer transitions 0/114 dead transitions. [2021-12-06 20:08:09,305 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 114 transitions, 282 flow [2021-12-06 20:08:09,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 20:08:09,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-06 20:08:09,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 877 transitions. [2021-12-06 20:08:09,310 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.928042328042328 [2021-12-06 20:08:09,310 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 877 transitions. [2021-12-06 20:08:09,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 877 transitions. [2021-12-06 20:08:09,311 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:08:09,312 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 877 transitions. [2021-12-06 20:08:09,315 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 97.44444444444444) internal successors, (877), 9 states have internal predecessors, (877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:09,320 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 105.0) internal successors, (1050), 10 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:09,321 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 105.0) internal successors, (1050), 10 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:09,321 INFO L186 Difference]: Start difference. First operand has 109 places, 104 transitions, 220 flow. Second operand 9 states and 877 transitions. [2021-12-06 20:08:09,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 114 transitions, 282 flow [2021-12-06 20:08:09,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 114 transitions, 280 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-06 20:08:09,325 INFO L242 Difference]: Finished difference. Result has 119 places, 110 transitions, 268 flow [2021-12-06 20:08:09,325 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=268, PETRI_PLACES=119, PETRI_TRANSITIONS=110} [2021-12-06 20:08:09,326 INFO L334 CegarLoopForPetriNet]: 106 programPoint places, 13 predicate places. [2021-12-06 20:08:09,326 INFO L470 AbstractCegarLoop]: Abstraction has has 119 places, 110 transitions, 268 flow [2021-12-06 20:08:09,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 97.1) internal successors, (971), 10 states have internal predecessors, (971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:09,327 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:08:09,327 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] [2021-12-06 20:08:09,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1d35278-e2f7-4db0-95ea-155bf283ce00/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-06 20:08:09,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1d35278-e2f7-4db0-95ea-155bf283ce00/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:08:09,529 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-12-06 20:08:09,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:08:09,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1774591519, now seen corresponding path program 2 times [2021-12-06 20:08:09,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:08:09,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185605394] [2021-12-06 20:08:09,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:08:09,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:08:09,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:08:09,731 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:08:09,731 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:08:09,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185605394] [2021-12-06 20:08:09,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185605394] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 20:08:09,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [789552668] [2021-12-06 20:08:09,732 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 20:08:09,732 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:08:09,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1d35278-e2f7-4db0-95ea-155bf283ce00/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:08:09,733 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1d35278-e2f7-4db0-95ea-155bf283ce00/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 20:08:09,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1d35278-e2f7-4db0-95ea-155bf283ce00/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-06 20:08:09,776 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-06 20:08:09,776 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 20:08:09,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-06 20:08:09,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:08:09,841 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 [2021-12-06 20:08:09,862 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-12-06 20:08:09,863 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 23 treesize of output 22 [2021-12-06 20:08:09,893 INFO L354 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2021-12-06 20:08:09,893 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 32 treesize of output 34 [2021-12-06 20:08:09,932 INFO L354 Elim1Store]: treesize reduction 114, result has 19.7 percent of original size [2021-12-06 20:08:09,933 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 41 treesize of output 46 [2021-12-06 20:08:09,949 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-06 20:08:09,949 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:08:09,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [789552668] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:08:09,949 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 20:08:09,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2021-12-06 20:08:09,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670707288] [2021-12-06 20:08:09,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:08:09,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 20:08:09,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:08:09,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 20:08:09,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-12-06 20:08:09,951 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 105 [2021-12-06 20:08:09,952 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 110 transitions, 268 flow. Second operand has 6 states, 6 states have (on average 60.5) internal successors, (363), 6 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:09,952 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:08:09,952 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 105 [2021-12-06 20:08:09,952 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:08:10,502 INFO L129 PetriNetUnfolder]: 514/1584 cut-off events. [2021-12-06 20:08:10,503 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-12-06 20:08:10,507 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2711 conditions, 1584 events. 514/1584 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 9738 event pairs, 175 based on Foata normal form. 0/1439 useless extension candidates. Maximal degree in co-relation 2704. Up to 498 conditions per place. [2021-12-06 20:08:10,514 INFO L132 encePairwiseOnDemand]: 83/105 looper letters, 169 selfloop transitions, 42 changer transitions 0/276 dead transitions. [2021-12-06 20:08:10,514 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 276 transitions, 1022 flow [2021-12-06 20:08:10,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 20:08:10,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-06 20:08:10,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 567 transitions. [2021-12-06 20:08:10,516 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9 [2021-12-06 20:08:10,516 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 567 transitions. [2021-12-06 20:08:10,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 567 transitions. [2021-12-06 20:08:10,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:08:10,516 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 567 transitions. [2021-12-06 20:08:10,518 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 94.5) internal successors, (567), 6 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:10,519 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 105.0) internal successors, (735), 7 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:10,520 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 105.0) internal successors, (735), 7 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:10,520 INFO L186 Difference]: Start difference. First operand has 119 places, 110 transitions, 268 flow. Second operand 6 states and 567 transitions. [2021-12-06 20:08:10,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 276 transitions, 1022 flow [2021-12-06 20:08:10,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 276 transitions, 1016 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-12-06 20:08:10,525 INFO L242 Difference]: Finished difference. Result has 128 places, 156 transitions, 578 flow [2021-12-06 20:08:10,526 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=578, PETRI_PLACES=128, PETRI_TRANSITIONS=156} [2021-12-06 20:08:10,526 INFO L334 CegarLoopForPetriNet]: 106 programPoint places, 22 predicate places. [2021-12-06 20:08:10,526 INFO L470 AbstractCegarLoop]: Abstraction has has 128 places, 156 transitions, 578 flow [2021-12-06 20:08:10,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 60.5) internal successors, (363), 6 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:10,527 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:08:10,527 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] [2021-12-06 20:08:10,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1d35278-e2f7-4db0-95ea-155bf283ce00/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-06 20:08:10,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1d35278-e2f7-4db0-95ea-155bf283ce00/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2021-12-06 20:08:10,728 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-12-06 20:08:10,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:08:10,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1716795506, now seen corresponding path program 1 times [2021-12-06 20:08:10,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:08:10,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858121101] [2021-12-06 20:08:10,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:08:10,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:08:10,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:08:10,904 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:08:10,904 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:08:10,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858121101] [2021-12-06 20:08:10,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858121101] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 20:08:10,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1073910959] [2021-12-06 20:08:10,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:08:10,905 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:08:10,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1d35278-e2f7-4db0-95ea-155bf283ce00/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:08:10,905 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1d35278-e2f7-4db0-95ea-155bf283ce00/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 20:08:10,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1d35278-e2f7-4db0-95ea-155bf283ce00/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-06 20:08:10,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:08:10,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 20:08:10,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:08:11,023 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:08:11,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:08:11,110 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:08:11,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1073910959] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 20:08:11,110 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 20:08:11,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2021-12-06 20:08:11,111 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171821618] [2021-12-06 20:08:11,111 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 20:08:11,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-12-06 20:08:11,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:08:11,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-12-06 20:08:11,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2021-12-06 20:08:11,114 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 105 [2021-12-06 20:08:11,116 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 156 transitions, 578 flow. Second operand has 18 states, 18 states have (on average 97.27777777777777) internal successors, (1751), 18 states have internal predecessors, (1751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:11,116 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:08:11,116 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 105 [2021-12-06 20:08:11,117 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:08:11,305 INFO L129 PetriNetUnfolder]: 115/688 cut-off events. [2021-12-06 20:08:11,305 INFO L130 PetriNetUnfolder]: For 114/138 co-relation queries the response was YES. [2021-12-06 20:08:11,307 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1274 conditions, 688 events. 115/688 cut-off events. For 114/138 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 4037 event pairs, 24 based on Foata normal form. 7/677 useless extension candidates. Maximal degree in co-relation 1262. Up to 118 conditions per place. [2021-12-06 20:08:11,309 INFO L132 encePairwiseOnDemand]: 99/105 looper letters, 19 selfloop transitions, 21 changer transitions 0/180 dead transitions. [2021-12-06 20:08:11,309 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 180 transitions, 758 flow [2021-12-06 20:08:11,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-12-06 20:08:11,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-12-06 20:08:11,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2039 transitions. [2021-12-06 20:08:11,314 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9247165532879819 [2021-12-06 20:08:11,315 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2039 transitions. [2021-12-06 20:08:11,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2039 transitions. [2021-12-06 20:08:11,316 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:08:11,316 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2039 transitions. [2021-12-06 20:08:11,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 97.0952380952381) internal successors, (2039), 21 states have internal predecessors, (2039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:11,324 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 105.0) internal successors, (2310), 22 states have internal predecessors, (2310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:11,325 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 105.0) internal successors, (2310), 22 states have internal predecessors, (2310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:11,325 INFO L186 Difference]: Start difference. First operand has 128 places, 156 transitions, 578 flow. Second operand 21 states and 2039 transitions. [2021-12-06 20:08:11,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 180 transitions, 758 flow [2021-12-06 20:08:11,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 180 transitions, 758 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-06 20:08:11,332 INFO L242 Difference]: Finished difference. Result has 153 places, 169 transitions, 708 flow [2021-12-06 20:08:11,333 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=578, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=708, PETRI_PLACES=153, PETRI_TRANSITIONS=169} [2021-12-06 20:08:11,333 INFO L334 CegarLoopForPetriNet]: 106 programPoint places, 47 predicate places. [2021-12-06 20:08:11,333 INFO L470 AbstractCegarLoop]: Abstraction has has 153 places, 169 transitions, 708 flow [2021-12-06 20:08:11,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 97.27777777777777) internal successors, (1751), 18 states have internal predecessors, (1751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:11,334 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:08:11,334 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] [2021-12-06 20:08:11,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1d35278-e2f7-4db0-95ea-155bf283ce00/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-06 20:08:11,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1d35278-e2f7-4db0-95ea-155bf283ce00/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:08:11,535 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-12-06 20:08:11,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:08:11,536 INFO L85 PathProgramCache]: Analyzing trace with hash 2072561650, now seen corresponding path program 2 times [2021-12-06 20:08:11,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:08:11,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261531895] [2021-12-06 20:08:11,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:08:11,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:08:11,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:08:11,676 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:08:11,676 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:08:11,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261531895] [2021-12-06 20:08:11,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261531895] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 20:08:11,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1551397857] [2021-12-06 20:08:11,677 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 20:08:11,677 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:08:11,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1d35278-e2f7-4db0-95ea-155bf283ce00/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:08:11,678 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1d35278-e2f7-4db0-95ea-155bf283ce00/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 20:08:11,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1d35278-e2f7-4db0-95ea-155bf283ce00/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-06 20:08:11,725 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-06 20:08:11,725 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 20:08:11,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-06 20:08:11,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:08:11,780 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 [2021-12-06 20:08:11,799 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-12-06 20:08:11,799 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 23 treesize of output 22 [2021-12-06 20:08:11,824 INFO L354 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2021-12-06 20:08:11,824 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 32 treesize of output 34 [2021-12-06 20:08:11,860 INFO L354 Elim1Store]: treesize reduction 114, result has 19.7 percent of original size [2021-12-06 20:08:11,861 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 41 treesize of output 46 [2021-12-06 20:08:11,880 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-12-06 20:08:11,881 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:08:11,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1551397857] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:08:11,881 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 20:08:11,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2021-12-06 20:08:11,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031016231] [2021-12-06 20:08:11,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:08:11,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 20:08:11,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:08:11,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 20:08:11,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2021-12-06 20:08:11,883 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 105 [2021-12-06 20:08:11,883 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 169 transitions, 708 flow. Second operand has 6 states, 6 states have (on average 60.5) internal successors, (363), 6 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:11,883 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:08:11,883 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 105 [2021-12-06 20:08:11,883 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:08:12,209 INFO L129 PetriNetUnfolder]: 501/1541 cut-off events. [2021-12-06 20:08:12,209 INFO L130 PetriNetUnfolder]: For 724/724 co-relation queries the response was YES. [2021-12-06 20:08:12,213 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3729 conditions, 1541 events. 501/1541 cut-off events. For 724/724 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 9103 event pairs, 262 based on Foata normal form. 0/1527 useless extension candidates. Maximal degree in co-relation 3712. Up to 905 conditions per place. [2021-12-06 20:08:12,220 INFO L132 encePairwiseOnDemand]: 99/105 looper letters, 137 selfloop transitions, 5 changer transitions 0/220 dead transitions. [2021-12-06 20:08:12,220 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 220 transitions, 1222 flow [2021-12-06 20:08:12,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 20:08:12,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-06 20:08:12,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 451 transitions. [2021-12-06 20:08:12,222 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7158730158730159 [2021-12-06 20:08:12,222 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 451 transitions. [2021-12-06 20:08:12,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 451 transitions. [2021-12-06 20:08:12,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:08:12,222 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 451 transitions. [2021-12-06 20:08:12,223 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 75.16666666666667) internal successors, (451), 6 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:12,224 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 105.0) internal successors, (735), 7 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:12,225 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 105.0) internal successors, (735), 7 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:12,225 INFO L186 Difference]: Start difference. First operand has 153 places, 169 transitions, 708 flow. Second operand 6 states and 451 transitions. [2021-12-06 20:08:12,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 220 transitions, 1222 flow [2021-12-06 20:08:12,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 220 transitions, 1198 flow, removed 6 selfloop flow, removed 6 redundant places. [2021-12-06 20:08:12,233 INFO L242 Difference]: Finished difference. Result has 151 places, 168 transitions, 692 flow [2021-12-06 20:08:12,233 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=682, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=692, PETRI_PLACES=151, PETRI_TRANSITIONS=168} [2021-12-06 20:08:12,234 INFO L334 CegarLoopForPetriNet]: 106 programPoint places, 45 predicate places. [2021-12-06 20:08:12,234 INFO L470 AbstractCegarLoop]: Abstraction has has 151 places, 168 transitions, 692 flow [2021-12-06 20:08:12,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 60.5) internal successors, (363), 6 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:12,235 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:08:12,235 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] [2021-12-06 20:08:12,255 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1d35278-e2f7-4db0-95ea-155bf283ce00/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-06 20:08:12,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1d35278-e2f7-4db0-95ea-155bf283ce00/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:08:12,436 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-12-06 20:08:12,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:08:12,437 INFO L85 PathProgramCache]: Analyzing trace with hash -2100397338, now seen corresponding path program 1 times [2021-12-06 20:08:12,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:08:12,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180016175] [2021-12-06 20:08:12,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:08:12,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:08:12,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:08:12,561 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:08:12,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:08:12,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180016175] [2021-12-06 20:08:12,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180016175] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 20:08:12,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2032324631] [2021-12-06 20:08:12,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:08:12,562 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:08:12,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1d35278-e2f7-4db0-95ea-155bf283ce00/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:08:12,563 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1d35278-e2f7-4db0-95ea-155bf283ce00/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 20:08:12,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1d35278-e2f7-4db0-95ea-155bf283ce00/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-06 20:08:12,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:08:12,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-06 20:08:12,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:08:12,714 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:08:12,714 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:08:12,826 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:08:12,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2032324631] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 20:08:12,826 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 20:08:12,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2021-12-06 20:08:12,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437714744] [2021-12-06 20:08:12,827 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 20:08:12,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-12-06 20:08:12,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:08:12,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-12-06 20:08:12,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2021-12-06 20:08:12,830 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 105 [2021-12-06 20:08:12,832 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 168 transitions, 692 flow. Second operand has 23 states, 23 states have (on average 97.43478260869566) internal successors, (2241), 23 states have internal predecessors, (2241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:12,832 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:08:12,832 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 105 [2021-12-06 20:08:12,832 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:08:13,057 INFO L129 PetriNetUnfolder]: 115/702 cut-off events. [2021-12-06 20:08:13,057 INFO L130 PetriNetUnfolder]: For 221/245 co-relation queries the response was YES. [2021-12-06 20:08:13,058 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1372 conditions, 702 events. 115/702 cut-off events. For 221/245 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 4033 event pairs, 24 based on Foata normal form. 6/691 useless extension candidates. Maximal degree in co-relation 1354. Up to 118 conditions per place. [2021-12-06 20:08:13,061 INFO L132 encePairwiseOnDemand]: 99/105 looper letters, 25 selfloop transitions, 30 changer transitions 0/194 dead transitions. [2021-12-06 20:08:13,061 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 194 transitions, 942 flow [2021-12-06 20:08:13,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-12-06 20:08:13,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2021-12-06 20:08:13,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 2908 transitions. [2021-12-06 20:08:13,068 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9231746031746032 [2021-12-06 20:08:13,068 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 2908 transitions. [2021-12-06 20:08:13,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 2908 transitions. [2021-12-06 20:08:13,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:08:13,070 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 2908 transitions. [2021-12-06 20:08:13,075 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 96.93333333333334) internal successors, (2908), 30 states have internal predecessors, (2908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:13,082 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 105.0) internal successors, (3255), 31 states have internal predecessors, (3255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:13,083 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 105.0) internal successors, (3255), 31 states have internal predecessors, (3255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:13,083 INFO L186 Difference]: Start difference. First operand has 151 places, 168 transitions, 692 flow. Second operand 30 states and 2908 transitions. [2021-12-06 20:08:13,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 194 transitions, 942 flow [2021-12-06 20:08:13,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 194 transitions, 932 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-12-06 20:08:13,089 INFO L242 Difference]: Finished difference. Result has 179 places, 178 transitions, 834 flow [2021-12-06 20:08:13,089 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=682, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=834, PETRI_PLACES=179, PETRI_TRANSITIONS=178} [2021-12-06 20:08:13,090 INFO L334 CegarLoopForPetriNet]: 106 programPoint places, 73 predicate places. [2021-12-06 20:08:13,090 INFO L470 AbstractCegarLoop]: Abstraction has has 179 places, 178 transitions, 834 flow [2021-12-06 20:08:13,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 97.43478260869566) internal successors, (2241), 23 states have internal predecessors, (2241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:13,091 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:08:13,091 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] [2021-12-06 20:08:13,123 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1d35278-e2f7-4db0-95ea-155bf283ce00/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-06 20:08:13,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1d35278-e2f7-4db0-95ea-155bf283ce00/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:08:13,291 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-12-06 20:08:13,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:08:13,292 INFO L85 PathProgramCache]: Analyzing trace with hash 986327552, now seen corresponding path program 2 times [2021-12-06 20:08:13,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:08:13,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458536722] [2021-12-06 20:08:13,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:08:13,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:08:13,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:08:13,379 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 20:08:13,379 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:08:13,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458536722] [2021-12-06 20:08:13,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458536722] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:08:13,379 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:08:13,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:08:13,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76409030] [2021-12-06 20:08:13,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:08:13,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 20:08:13,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:08:13,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 20:08:13,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-06 20:08:13,380 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 105 [2021-12-06 20:08:13,381 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 178 transitions, 834 flow. Second operand has 6 states, 6 states have (on average 59.666666666666664) internal successors, (358), 6 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:13,381 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:08:13,381 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 105 [2021-12-06 20:08:13,381 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:08:13,880 INFO L129 PetriNetUnfolder]: 684/2000 cut-off events. [2021-12-06 20:08:13,880 INFO L130 PetriNetUnfolder]: For 892/894 co-relation queries the response was YES. [2021-12-06 20:08:13,885 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4937 conditions, 2000 events. 684/2000 cut-off events. For 892/894 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 12509 event pairs, 269 based on Foata normal form. 38/2019 useless extension candidates. Maximal degree in co-relation 4916. Up to 964 conditions per place. [2021-12-06 20:08:13,893 INFO L132 encePairwiseOnDemand]: 88/105 looper letters, 179 selfloop transitions, 53 changer transitions 3/321 dead transitions. [2021-12-06 20:08:13,894 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 321 transitions, 1784 flow [2021-12-06 20:08:13,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 20:08:13,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-06 20:08:13,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 517 transitions. [2021-12-06 20:08:13,895 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8206349206349206 [2021-12-06 20:08:13,895 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 517 transitions. [2021-12-06 20:08:13,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 517 transitions. [2021-12-06 20:08:13,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:08:13,896 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 517 transitions. [2021-12-06 20:08:13,897 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 86.16666666666667) internal successors, (517), 6 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:13,898 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 105.0) internal successors, (735), 7 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:13,898 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 105.0) internal successors, (735), 7 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:13,898 INFO L186 Difference]: Start difference. First operand has 179 places, 178 transitions, 834 flow. Second operand 6 states and 517 transitions. [2021-12-06 20:08:13,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 321 transitions, 1784 flow [2021-12-06 20:08:13,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 321 transitions, 1738 flow, removed 5 selfloop flow, removed 18 redundant places. [2021-12-06 20:08:13,907 INFO L242 Difference]: Finished difference. Result has 171 places, 229 transitions, 1294 flow [2021-12-06 20:08:13,907 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=788, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1294, PETRI_PLACES=171, PETRI_TRANSITIONS=229} [2021-12-06 20:08:13,908 INFO L334 CegarLoopForPetriNet]: 106 programPoint places, 65 predicate places. [2021-12-06 20:08:13,908 INFO L470 AbstractCegarLoop]: Abstraction has has 171 places, 229 transitions, 1294 flow [2021-12-06 20:08:13,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 59.666666666666664) internal successors, (358), 6 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:13,908 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:08:13,908 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] [2021-12-06 20:08:13,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-06 20:08:13,908 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-12-06 20:08:13,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:08:13,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1487024271, now seen corresponding path program 1 times [2021-12-06 20:08:13,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:08:13,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449220939] [2021-12-06 20:08:13,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:08:13,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:08:13,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:08:13,983 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 20:08:13,984 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:08:13,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449220939] [2021-12-06 20:08:13,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449220939] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:08:13,984 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:08:13,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:08:13,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778381922] [2021-12-06 20:08:13,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:08:13,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 20:08:13,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:08:13,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 20:08:13,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-06 20:08:13,985 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 105 [2021-12-06 20:08:13,986 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 229 transitions, 1294 flow. Second operand has 6 states, 6 states have (on average 58.833333333333336) internal successors, (353), 6 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) [2021-12-06 20:08:13,986 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:08:13,986 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 105 [2021-12-06 20:08:13,986 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:08:14,341 INFO L129 PetriNetUnfolder]: 610/1869 cut-off events. [2021-12-06 20:08:14,341 INFO L130 PetriNetUnfolder]: For 2200/2200 co-relation queries the response was YES. [2021-12-06 20:08:14,346 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5610 conditions, 1869 events. 610/1869 cut-off events. For 2200/2200 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 11711 event pairs, 263 based on Foata normal form. 0/1863 useless extension candidates. Maximal degree in co-relation 5584. Up to 1177 conditions per place. [2021-12-06 20:08:14,354 INFO L132 encePairwiseOnDemand]: 99/105 looper letters, 182 selfloop transitions, 5 changer transitions 0/276 dead transitions. [2021-12-06 20:08:14,355 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 276 transitions, 1962 flow [2021-12-06 20:08:14,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 20:08:14,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-06 20:08:14,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 431 transitions. [2021-12-06 20:08:14,356 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6841269841269841 [2021-12-06 20:08:14,356 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 431 transitions. [2021-12-06 20:08:14,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 431 transitions. [2021-12-06 20:08:14,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:08:14,356 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 431 transitions. [2021-12-06 20:08:14,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 71.83333333333333) internal successors, (431), 6 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:14,358 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 105.0) internal successors, (735), 7 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:14,359 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 105.0) internal successors, (735), 7 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:14,359 INFO L186 Difference]: Start difference. First operand has 171 places, 229 transitions, 1294 flow. Second operand 6 states and 431 transitions. [2021-12-06 20:08:14,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 276 transitions, 1962 flow [2021-12-06 20:08:14,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 276 transitions, 1954 flow, removed 4 selfloop flow, removed 0 redundant places. [2021-12-06 20:08:14,371 INFO L242 Difference]: Finished difference. Result has 175 places, 228 transitions, 1294 flow [2021-12-06 20:08:14,371 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=1284, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1294, PETRI_PLACES=175, PETRI_TRANSITIONS=228} [2021-12-06 20:08:14,371 INFO L334 CegarLoopForPetriNet]: 106 programPoint places, 69 predicate places. [2021-12-06 20:08:14,372 INFO L470 AbstractCegarLoop]: Abstraction has has 175 places, 228 transitions, 1294 flow [2021-12-06 20:08:14,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 58.833333333333336) internal successors, (353), 6 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) [2021-12-06 20:08:14,372 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:08:14,372 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, 1, 1, 1, 1] [2021-12-06 20:08:14,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-06 20:08:14,372 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-12-06 20:08:14,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:08:14,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1985777840, now seen corresponding path program 1 times [2021-12-06 20:08:14,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:08:14,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17680874] [2021-12-06 20:08:14,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:08:14,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:08:14,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:08:14,478 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 20:08:14,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:08:14,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17680874] [2021-12-06 20:08:14,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17680874] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:08:14,479 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:08:14,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:08:14,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965829177] [2021-12-06 20:08:14,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:08:14,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 20:08:14,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:08:14,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 20:08:14,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-06 20:08:14,481 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 105 [2021-12-06 20:08:14,482 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 228 transitions, 1294 flow. Second operand has 6 states, 6 states have (on average 60.833333333333336) internal successors, (365), 6 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:14,482 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:08:14,482 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 105 [2021-12-06 20:08:14,483 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:08:14,949 INFO L129 PetriNetUnfolder]: 754/2250 cut-off events. [2021-12-06 20:08:14,949 INFO L130 PetriNetUnfolder]: For 2591/2593 co-relation queries the response was YES. [2021-12-06 20:08:14,955 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6820 conditions, 2250 events. 754/2250 cut-off events. For 2591/2593 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 14970 event pairs, 305 based on Foata normal form. 28/2272 useless extension candidates. Maximal degree in co-relation 6793. Up to 1209 conditions per place. [2021-12-06 20:08:14,964 INFO L132 encePairwiseOnDemand]: 88/105 looper letters, 146 selfloop transitions, 58 changer transitions 36/328 dead transitions. [2021-12-06 20:08:14,964 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 328 transitions, 2330 flow [2021-12-06 20:08:14,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 20:08:14,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-06 20:08:14,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 459 transitions. [2021-12-06 20:08:14,966 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7285714285714285 [2021-12-06 20:08:14,966 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 459 transitions. [2021-12-06 20:08:14,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 459 transitions. [2021-12-06 20:08:14,967 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:08:14,967 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 459 transitions. [2021-12-06 20:08:14,968 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 76.5) internal successors, (459), 6 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:14,969 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 105.0) internal successors, (735), 7 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:14,969 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 105.0) internal successors, (735), 7 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:14,969 INFO L186 Difference]: Start difference. First operand has 175 places, 228 transitions, 1294 flow. Second operand 6 states and 459 transitions. [2021-12-06 20:08:14,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 328 transitions, 2330 flow [2021-12-06 20:08:14,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 328 transitions, 2320 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-12-06 20:08:14,984 INFO L242 Difference]: Finished difference. Result has 179 places, 255 transitions, 1692 flow [2021-12-06 20:08:14,985 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=1284, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1692, PETRI_PLACES=179, PETRI_TRANSITIONS=255} [2021-12-06 20:08:14,985 INFO L334 CegarLoopForPetriNet]: 106 programPoint places, 73 predicate places. [2021-12-06 20:08:14,985 INFO L470 AbstractCegarLoop]: Abstraction has has 179 places, 255 transitions, 1692 flow [2021-12-06 20:08:14,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 60.833333333333336) internal successors, (365), 6 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:14,986 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:08:14,986 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:08:14,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-06 20:08:14,986 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-12-06 20:08:14,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:08:14,986 INFO L85 PathProgramCache]: Analyzing trace with hash 929258206, now seen corresponding path program 1 times [2021-12-06 20:08:14,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:08:14,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002405838] [2021-12-06 20:08:14,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:08:14,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:08:15,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:08:15,044 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 20:08:15,044 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:08:15,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002405838] [2021-12-06 20:08:15,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002405838] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:08:15,044 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:08:15,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 20:08:15,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847783288] [2021-12-06 20:08:15,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:08:15,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 20:08:15,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:08:15,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 20:08:15,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:08:15,046 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 105 [2021-12-06 20:08:15,046 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 255 transitions, 1692 flow. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:15,046 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:08:15,046 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 105 [2021-12-06 20:08:15,047 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:08:15,100 INFO L129 PetriNetUnfolder]: 6/237 cut-off events. [2021-12-06 20:08:15,100 INFO L130 PetriNetUnfolder]: For 279/279 co-relation queries the response was YES. [2021-12-06 20:08:15,101 INFO L84 FinitePrefix]: Finished finitePrefix Result has 633 conditions, 237 events. 6/237 cut-off events. For 279/279 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 311 event pairs, 3 based on Foata normal form. 2/239 useless extension candidates. Maximal degree in co-relation 602. Up to 24 conditions per place. [2021-12-06 20:08:15,102 INFO L132 encePairwiseOnDemand]: 101/105 looper letters, 0 selfloop transitions, 0 changer transitions 129/129 dead transitions. [2021-12-06 20:08:15,102 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 129 transitions, 628 flow [2021-12-06 20:08:15,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 20:08:15,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-06 20:08:15,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 296 transitions. [2021-12-06 20:08:15,103 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9396825396825397 [2021-12-06 20:08:15,103 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 296 transitions. [2021-12-06 20:08:15,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 296 transitions. [2021-12-06 20:08:15,104 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:08:15,104 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 296 transitions. [2021-12-06 20:08:15,105 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:15,106 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:15,106 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:15,106 INFO L186 Difference]: Start difference. First operand has 179 places, 255 transitions, 1692 flow. Second operand 3 states and 296 transitions. [2021-12-06 20:08:15,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 129 transitions, 628 flow [2021-12-06 20:08:15,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 129 transitions, 490 flow, removed 30 selfloop flow, removed 29 redundant places. [2021-12-06 20:08:15,112 INFO L242 Difference]: Finished difference. Result has 148 places, 0 transitions, 0 flow [2021-12-06 20:08:15,112 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=462, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=148, PETRI_TRANSITIONS=0} [2021-12-06 20:08:15,113 INFO L334 CegarLoopForPetriNet]: 106 programPoint places, 42 predicate places. [2021-12-06 20:08:15,113 INFO L470 AbstractCegarLoop]: Abstraction has has 148 places, 0 transitions, 0 flow [2021-12-06 20:08:15,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:15,115 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2021-12-06 20:08:15,116 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2021-12-06 20:08:15,116 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2021-12-06 20:08:15,116 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2021-12-06 20:08:15,116 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (4 of 9 remaining) [2021-12-06 20:08:15,116 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2021-12-06 20:08:15,116 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2021-12-06 20:08:15,116 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2021-12-06 20:08:15,117 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2021-12-06 20:08:15,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-06 20:08:15,120 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1] [2021-12-06 20:08:15,123 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-12-06 20:08:15,123 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 20:08:15,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 08:08:15 BasicIcfg [2021-12-06 20:08:15,126 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 20:08:15,126 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 20:08:15,126 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 20:08:15,126 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 20:08:15,127 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:08:08" (3/4) ... [2021-12-06 20:08:15,128 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-06 20:08:15,133 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2021-12-06 20:08:15,136 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-12-06 20:08:15,136 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-12-06 20:08:15,136 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-06 20:08:15,159 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1d35278-e2f7-4db0-95ea-155bf283ce00/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-06 20:08:15,159 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 20:08:15,160 INFO L158 Benchmark]: Toolchain (without parser) took 7458.40ms. Allocated memory was 88.1MB in the beginning and 245.4MB in the end (delta: 157.3MB). Free memory was 50.8MB in the beginning and 113.1MB in the end (delta: -62.3MB). Peak memory consumption was 93.5MB. Max. memory is 16.1GB. [2021-12-06 20:08:15,160 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 88.1MB. Free memory was 68.4MB in the beginning and 68.3MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 20:08:15,160 INFO L158 Benchmark]: CACSL2BoogieTranslator took 320.26ms. Allocated memory is still 88.1MB. Free memory was 50.6MB in the beginning and 55.9MB in the end (delta: -5.3MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2021-12-06 20:08:15,160 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.96ms. Allocated memory is still 88.1MB. Free memory was 55.9MB in the beginning and 53.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 20:08:15,161 INFO L158 Benchmark]: Boogie Preprocessor took 34.72ms. Allocated memory is still 88.1MB. Free memory was 53.4MB in the beginning and 51.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 20:08:15,161 INFO L158 Benchmark]: RCFGBuilder took 329.13ms. Allocated memory is still 88.1MB. Free memory was 51.7MB in the beginning and 37.3MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-06 20:08:15,161 INFO L158 Benchmark]: TraceAbstraction took 6701.73ms. Allocated memory was 88.1MB in the beginning and 245.4MB in the end (delta: 157.3MB). Free memory was 37.0MB in the beginning and 116.2MB in the end (delta: -79.2MB). Peak memory consumption was 80.8MB. Max. memory is 16.1GB. [2021-12-06 20:08:15,161 INFO L158 Benchmark]: Witness Printer took 33.09ms. Allocated memory is still 245.4MB. Free memory was 116.2MB in the beginning and 113.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 20:08:15,163 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 88.1MB. Free memory was 68.4MB in the beginning and 68.3MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 320.26ms. Allocated memory is still 88.1MB. Free memory was 50.6MB in the beginning and 55.9MB in the end (delta: -5.3MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.96ms. Allocated memory is still 88.1MB. Free memory was 55.9MB in the beginning and 53.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.72ms. Allocated memory is still 88.1MB. Free memory was 53.4MB in the beginning and 51.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 329.13ms. Allocated memory is still 88.1MB. Free memory was 51.7MB in the beginning and 37.3MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 6701.73ms. Allocated memory was 88.1MB in the beginning and 245.4MB in the end (delta: 157.3MB). Free memory was 37.0MB in the beginning and 116.2MB in the end (delta: -79.2MB). Peak memory consumption was 80.8MB. Max. memory is 16.1GB. * Witness Printer took 33.09ms. Allocated memory is still 245.4MB. Free memory was 116.2MB in the beginning and 113.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 683]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 683]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 131 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 6.6s, OverallIterations: 11, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 249 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 249 mSDsluCounter, 254 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 70 mSDsCounter, 290 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1570 IncrementalHoareTripleChecker+Invalid, 1860 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 290 mSolverCounterUnsat, 213 mSDtfsCounter, 1570 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 527 GetRequests, 403 SyntacticMatches, 1 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 634 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1692occurred in iteration=10, InterpolantAutomatonStates: 98, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 990 NumberOfCodeBlocks, 940 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1125 ConstructedInterpolants, 0 QuantifiedInterpolants, 2320 SizeOfPredicates, 22 NumberOfNonLiveVariables, 622 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 19 InterpolantComputations, 8 PerfectInterpolantSequences, 1070/1593 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-12-06 20:08:15,190 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1d35278-e2f7-4db0-95ea-155bf283ce00/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE