./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/05-lval_ls_09-idxsense_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a45838-e658-45e8-9176-f5f00f3b0eee/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a45838-e658-45e8-9176-f5f00f3b0eee/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a45838-e658-45e8-9176-f5f00f3b0eee/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a45838-e658-45e8-9176-f5f00f3b0eee/bin/uautomizer-ZXIjhQolGL/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/05-lval_ls_09-idxsense_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a45838-e658-45e8-9176-f5f00f3b0eee/bin/uautomizer-ZXIjhQolGL/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a45838-e658-45e8-9176-f5f00f3b0eee/bin/uautomizer-ZXIjhQolGL --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0e635f0fe47aceede1c472bdc8d824736c973da1578eefbb4d4eeab774d2111f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 05:27:03,601 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 05:27:03,605 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 05:27:03,672 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 05:27:03,673 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 05:27:03,678 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 05:27:03,680 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 05:27:03,685 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 05:27:03,688 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 05:27:03,694 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 05:27:03,696 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 05:27:03,698 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 05:27:03,699 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 05:27:03,702 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 05:27:03,704 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 05:27:03,709 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 05:27:03,711 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 05:27:03,713 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 05:27:03,715 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 05:27:03,724 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 05:27:03,727 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 05:27:03,729 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 05:27:03,732 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 05:27:03,734 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 05:27:03,744 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 05:27:03,745 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 05:27:03,746 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 05:27:03,748 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 05:27:03,749 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 05:27:03,751 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 05:27:03,751 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 05:27:03,753 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 05:27:03,755 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 05:27:03,757 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 05:27:03,759 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 05:27:03,759 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 05:27:03,760 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 05:27:03,761 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 05:27:03,761 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 05:27:03,762 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 05:27:03,763 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 05:27:03,764 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a45838-e658-45e8-9176-f5f00f3b0eee/bin/uautomizer-ZXIjhQolGL/config/svcomp-DataRace-32bit-Automizer_Default.epf [2021-11-19 05:27:03,815 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 05:27:03,816 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 05:27:03,817 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 05:27:03,817 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 05:27:03,818 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 05:27:03,818 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 05:27:03,819 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 05:27:03,819 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 05:27:03,820 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 05:27:03,820 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 05:27:03,821 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 05:27:03,822 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 05:27:03,822 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 05:27:03,822 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 05:27:03,822 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 05:27:03,823 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 05:27:03,823 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 05:27:03,823 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 05:27:03,823 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-19 05:27:03,824 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 05:27:03,824 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 05:27:03,824 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 05:27:03,824 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 05:27:03,825 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 05:27:03,825 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 05:27:03,825 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 05:27:03,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 05:27:03,826 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 05:27:03,826 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 05:27:03,826 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 05:27:03,827 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 05:27:03,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 05:27:03,827 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-19 05:27:03,827 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-19 05:27:03,828 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 05:27:03,828 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 05:27:03,828 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_75a45838-e658-45e8-9176-f5f00f3b0eee/bin/uautomizer-ZXIjhQolGL/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a45838-e658-45e8-9176-f5f00f3b0eee/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e635f0fe47aceede1c472bdc8d824736c973da1578eefbb4d4eeab774d2111f [2021-11-19 05:27:04,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 05:27:04,228 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 05:27:04,231 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 05:27:04,233 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 05:27:04,234 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 05:27:04,235 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a45838-e658-45e8-9176-f5f00f3b0eee/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/goblint-regression/05-lval_ls_09-idxsense_rc.i [2021-11-19 05:27:04,317 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a45838-e658-45e8-9176-f5f00f3b0eee/bin/uautomizer-ZXIjhQolGL/data/0b3ffa20c/c51bdec43a58453abd7f698f7f9dfb08/FLAG1853995b5 [2021-11-19 05:27:04,967 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 05:27:04,970 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a45838-e658-45e8-9176-f5f00f3b0eee/sv-benchmarks/c/goblint-regression/05-lval_ls_09-idxsense_rc.i [2021-11-19 05:27:04,985 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a45838-e658-45e8-9176-f5f00f3b0eee/bin/uautomizer-ZXIjhQolGL/data/0b3ffa20c/c51bdec43a58453abd7f698f7f9dfb08/FLAG1853995b5 [2021-11-19 05:27:05,206 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a45838-e658-45e8-9176-f5f00f3b0eee/bin/uautomizer-ZXIjhQolGL/data/0b3ffa20c/c51bdec43a58453abd7f698f7f9dfb08 [2021-11-19 05:27:05,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 05:27:05,210 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 05:27:05,212 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 05:27:05,212 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 05:27:05,216 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 05:27:05,216 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:27:05" (1/1) ... [2021-11-19 05:27:05,218 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d1c6cf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:27:05, skipping insertion in model container [2021-11-19 05:27:05,218 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:27:05" (1/1) ... [2021-11-19 05:27:05,225 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 05:27:05,275 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 05:27:05,685 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:27:05,718 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 05:27:05,776 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:27:05,812 INFO L208 MainTranslator]: Completed translation [2021-11-19 05:27:05,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:27:05 WrapperNode [2021-11-19 05:27:05,812 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 05:27:05,814 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 05:27:05,814 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 05:27:05,814 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 05:27:05,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:27:05" (1/1) ... [2021-11-19 05:27:05,837 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:27:05" (1/1) ... [2021-11-19 05:27:05,859 INFO L137 Inliner]: procedures = 160, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 51 [2021-11-19 05:27:05,860 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 05:27:05,861 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 05:27:05,861 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 05:27:05,861 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 05:27:05,870 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:27:05" (1/1) ... [2021-11-19 05:27:05,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:27:05" (1/1) ... [2021-11-19 05:27:05,874 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:27:05" (1/1) ... [2021-11-19 05:27:05,874 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:27:05" (1/1) ... [2021-11-19 05:27:05,886 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:27:05" (1/1) ... [2021-11-19 05:27:05,901 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:27:05" (1/1) ... [2021-11-19 05:27:05,903 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:27:05" (1/1) ... [2021-11-19 05:27:05,906 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 05:27:05,906 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 05:27:05,907 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 05:27:05,907 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 05:27:05,916 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:27:05" (1/1) ... [2021-11-19 05:27:05,930 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 05:27:05,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a45838-e658-45e8-9176-f5f00f3b0eee/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:27:05,959 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a45838-e658-45e8-9176-f5f00f3b0eee/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 05:27:05,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a45838-e658-45e8-9176-f5f00f3b0eee/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 05:27:06,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-19 05:27:06,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-19 05:27:06,018 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-19 05:27:06,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 05:27:06,018 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-19 05:27:06,019 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-19 05:27:06,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 05:27:06,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 05:27:06,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 05:27:06,021 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-19 05:27:06,211 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 05:27:06,213 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 05:27:06,451 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 05:27:06,460 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 05:27:06,460 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 05:27:06,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:27:06 BoogieIcfgContainer [2021-11-19 05:27:06,463 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 05:27:06,465 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 05:27:06,465 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 05:27:06,469 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 05:27:06,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:27:05" (1/3) ... [2021-11-19 05:27:06,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67336d56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:27:06, skipping insertion in model container [2021-11-19 05:27:06,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:27:05" (2/3) ... [2021-11-19 05:27:06,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67336d56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:27:06, skipping insertion in model container [2021-11-19 05:27:06,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:27:06" (3/3) ... [2021-11-19 05:27:06,473 INFO L111 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_09-idxsense_rc.i [2021-11-19 05:27:06,500 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-19 05:27:06,500 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 05:27:06,500 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-19 05:27:06,501 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-19 05:27:06,554 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,554 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,554 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,554 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,555 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,555 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,555 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,556 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,556 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,556 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,557 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,557 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,557 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,558 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,559 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,559 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,559 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,559 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,560 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,560 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,560 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,561 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,561 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,561 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,562 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,562 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,562 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,563 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,563 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,563 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,564 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,564 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,564 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,565 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,565 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,566 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,566 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,566 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,566 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,567 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,567 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,567 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,568 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,568 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,572 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,572 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,572 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,573 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,573 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,573 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,574 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,574 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:27:06,576 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-19 05:27:06,633 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 05:27:06,640 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 05:27:06,640 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-11-19 05:27:06,653 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 81 transitions, 167 flow [2021-11-19 05:27:06,703 INFO L129 PetriNetUnfolder]: 2/80 cut-off events. [2021-11-19 05:27:06,706 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-19 05:27:06,709 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 80 events. 2/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 70 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2021-11-19 05:27:06,709 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 81 transitions, 167 flow [2021-11-19 05:27:06,718 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 80 transitions, 163 flow [2021-11-19 05:27:06,739 INFO L129 PetriNetUnfolder]: 2/42 cut-off events. [2021-11-19 05:27:06,740 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-19 05:27:06,740 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 05:27:06,741 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] [2021-11-19 05:27:06,742 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-19 05:27:06,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:27:06,749 INFO L85 PathProgramCache]: Analyzing trace with hash 254648398, now seen corresponding path program 1 times [2021-11-19 05:27:06,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:27:06,760 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980261987] [2021-11-19 05:27:06,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:27:06,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:27:06,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:27:06,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:27:06,975 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:27:06,975 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980261987] [2021-11-19 05:27:06,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980261987] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:27:06,976 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:27:06,977 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 05:27:06,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925792826] [2021-11-19 05:27:06,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:27:06,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 05:27:06,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:27:07,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 05:27:07,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 05:27:07,026 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 81 [2021-11-19 05:27:07,030 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 80 transitions, 163 flow. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:27:07,030 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 05:27:07,031 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 81 [2021-11-19 05:27:07,032 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 05:27:07,083 INFO L129 PetriNetUnfolder]: 1/83 cut-off events. [2021-11-19 05:27:07,084 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-19 05:27:07,084 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 83 events. 1/83 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 69 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 38. Up to 9 conditions per place. [2021-11-19 05:27:07,086 INFO L132 encePairwiseOnDemand]: 77/81 looper letters, 10 selfloop transitions, 2 changer transitions 0/83 dead transitions. [2021-11-19 05:27:07,086 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 83 transitions, 193 flow [2021-11-19 05:27:07,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 05:27:07,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-19 05:27:07,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 231 transitions. [2021-11-19 05:27:07,102 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9506172839506173 [2021-11-19 05:27:07,103 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 231 transitions. [2021-11-19 05:27:07,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 231 transitions. [2021-11-19 05:27:07,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 05:27:07,108 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 231 transitions. [2021-11-19 05:27:07,112 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:27:07,118 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 81.0) internal successors, (324), 4 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:27:07,119 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 81.0) internal successors, (324), 4 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:27:07,121 INFO L186 Difference]: Start difference. First operand has 82 places, 80 transitions, 163 flow. Second operand 3 states and 231 transitions. [2021-11-19 05:27:07,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 83 transitions, 193 flow [2021-11-19 05:27:07,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 83 transitions, 192 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-19 05:27:07,131 INFO L242 Difference]: Finished difference. Result has 84 places, 80 transitions, 172 flow [2021-11-19 05:27:07,134 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=172, PETRI_PLACES=84, PETRI_TRANSITIONS=80} [2021-11-19 05:27:07,138 INFO L334 CegarLoopForPetriNet]: 82 programPoint places, 2 predicate places. [2021-11-19 05:27:07,142 INFO L470 AbstractCegarLoop]: Abstraction has has 84 places, 80 transitions, 172 flow [2021-11-19 05:27:07,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:27:07,142 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 05:27:07,143 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] [2021-11-19 05:27:07,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 05:27:07,144 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-19 05:27:07,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:27:07,146 INFO L85 PathProgramCache]: Analyzing trace with hash -354825073, now seen corresponding path program 1 times [2021-11-19 05:27:07,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:27:07,147 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011184427] [2021-11-19 05:27:07,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:27:07,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:27:07,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:27:07,359 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:27:07,359 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:27:07,360 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011184427] [2021-11-19 05:27:07,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011184427] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 05:27:07,360 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [418738359] [2021-11-19 05:27:07,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:27:07,361 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:27:07,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a45838-e658-45e8-9176-f5f00f3b0eee/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:27:07,378 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a45838-e658-45e8-9176-f5f00f3b0eee/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 05:27:07,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a45838-e658-45e8-9176-f5f00f3b0eee/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-19 05:27:07,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:27:07,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 05:27:07,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:27:07,642 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:27:07,643 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:27:07,792 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:27:07,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [418738359] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 05:27:07,793 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 05:27:07,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-11-19 05:27:07,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436612911] [2021-11-19 05:27:07,794 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 05:27:07,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 05:27:07,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:27:07,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 05:27:07,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-19 05:27:07,800 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 81 [2021-11-19 05:27:07,801 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 80 transitions, 172 flow. Second operand has 10 states, 10 states have (on average 73.1) internal successors, (731), 10 states have internal predecessors, (731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:27:07,802 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 05:27:07,802 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 81 [2021-11-19 05:27:07,802 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 05:27:07,928 INFO L129 PetriNetUnfolder]: 1/90 cut-off events. [2021-11-19 05:27:07,941 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-19 05:27:07,942 INFO L84 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 90 events. 1/90 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 64 event pairs, 0 based on Foata normal form. 2/88 useless extension candidates. Maximal degree in co-relation 92. Up to 6 conditions per place. [2021-11-19 05:27:07,943 INFO L132 encePairwiseOnDemand]: 75/81 looper letters, 11 selfloop transitions, 9 changer transitions 0/90 dead transitions. [2021-11-19 05:27:07,956 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 90 transitions, 234 flow [2021-11-19 05:27:07,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 05:27:07,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-11-19 05:27:07,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 661 transitions. [2021-11-19 05:27:07,961 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.906721536351166 [2021-11-19 05:27:07,961 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 661 transitions. [2021-11-19 05:27:07,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 661 transitions. [2021-11-19 05:27:07,963 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 05:27:07,963 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 661 transitions. [2021-11-19 05:27:07,967 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 73.44444444444444) internal successors, (661), 9 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:27:07,972 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 81.0) internal successors, (810), 10 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:27:07,973 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 81.0) internal successors, (810), 10 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:27:07,973 INFO L186 Difference]: Start difference. First operand has 84 places, 80 transitions, 172 flow. Second operand 9 states and 661 transitions. [2021-11-19 05:27:07,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 90 transitions, 234 flow [2021-11-19 05:27:07,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 90 transitions, 232 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-19 05:27:07,977 INFO L242 Difference]: Finished difference. Result has 94 places, 86 transitions, 220 flow [2021-11-19 05:27:07,978 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=220, PETRI_PLACES=94, PETRI_TRANSITIONS=86} [2021-11-19 05:27:07,979 INFO L334 CegarLoopForPetriNet]: 82 programPoint places, 12 predicate places. [2021-11-19 05:27:07,979 INFO L470 AbstractCegarLoop]: Abstraction has has 94 places, 86 transitions, 220 flow [2021-11-19 05:27:07,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 73.1) internal successors, (731), 10 states have internal predecessors, (731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:27:07,980 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 05:27:07,980 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] [2021-11-19 05:27:08,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a45838-e658-45e8-9176-f5f00f3b0eee/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-19 05:27:08,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a45838-e658-45e8-9176-f5f00f3b0eee/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:27:08,206 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-19 05:27:08,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:27:08,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1347071983, now seen corresponding path program 2 times [2021-11-19 05:27:08,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:27:08,208 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144913584] [2021-11-19 05:27:08,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:27:08,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:27:08,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:27:08,349 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:27:08,351 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:27:08,352 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144913584] [2021-11-19 05:27:08,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144913584] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 05:27:08,353 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926731698] [2021-11-19 05:27:08,353 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 05:27:08,353 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:27:08,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a45838-e658-45e8-9176-f5f00f3b0eee/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:27:08,362 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a45838-e658-45e8-9176-f5f00f3b0eee/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 05:27:08,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a45838-e658-45e8-9176-f5f00f3b0eee/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-19 05:27:08,457 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-19 05:27:08,457 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 05:27:08,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 05:27:08,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:27:08,627 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 05:27:08,676 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-19 05:27:08,677 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 [2021-11-19 05:27:08,762 INFO L354 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2021-11-19 05:27:08,763 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 [2021-11-19 05:27:08,853 INFO L354 Elim1Store]: treesize reduction 114, result has 19.7 percent of original size [2021-11-19 05:27:08,854 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 [2021-11-19 05:27:08,912 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-19 05:27:08,915 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-19 05:27:08,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926731698] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:27:08,916 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 05:27:08,917 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2021-11-19 05:27:08,917 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602795971] [2021-11-19 05:27:08,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:27:08,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 05:27:08,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:27:08,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 05:27:08,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-11-19 05:27:08,926 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 81 [2021-11-19 05:27:08,930 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 86 transitions, 220 flow. Second operand has 6 states, 6 states have (on average 50.5) internal successors, (303), 6 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:27:08,930 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 05:27:08,930 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 81 [2021-11-19 05:27:08,930 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 05:27:09,595 INFO L129 PetriNetUnfolder]: 332/1080 cut-off events. [2021-11-19 05:27:09,596 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-11-19 05:27:09,604 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1828 conditions, 1080 events. 332/1080 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 6902 event pairs, 77 based on Foata normal form. 0/978 useless extension candidates. Maximal degree in co-relation 1769. Up to 288 conditions per place. [2021-11-19 05:27:09,618 INFO L132 encePairwiseOnDemand]: 59/81 looper letters, 99 selfloop transitions, 42 changer transitions 0/196 dead transitions. [2021-11-19 05:27:09,619 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 196 transitions, 722 flow [2021-11-19 05:27:09,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 05:27:09,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-19 05:27:09,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 437 transitions. [2021-11-19 05:27:09,628 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8991769547325102 [2021-11-19 05:27:09,628 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 437 transitions. [2021-11-19 05:27:09,629 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 437 transitions. [2021-11-19 05:27:09,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 05:27:09,632 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 437 transitions. [2021-11-19 05:27:09,636 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 72.83333333333333) internal successors, (437), 6 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:27:09,642 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 81.0) internal successors, (567), 7 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) [2021-11-19 05:27:09,643 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 81.0) internal successors, (567), 7 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) [2021-11-19 05:27:09,643 INFO L186 Difference]: Start difference. First operand has 94 places, 86 transitions, 220 flow. Second operand 6 states and 437 transitions. [2021-11-19 05:27:09,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 196 transitions, 722 flow [2021-11-19 05:27:09,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 196 transitions, 716 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-11-19 05:27:09,659 INFO L242 Difference]: Finished difference. Result has 103 places, 132 transitions, 530 flow [2021-11-19 05:27:09,660 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=530, PETRI_PLACES=103, PETRI_TRANSITIONS=132} [2021-11-19 05:27:09,662 INFO L334 CegarLoopForPetriNet]: 82 programPoint places, 21 predicate places. [2021-11-19 05:27:09,663 INFO L470 AbstractCegarLoop]: Abstraction has has 103 places, 132 transitions, 530 flow [2021-11-19 05:27:09,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 50.5) internal successors, (303), 6 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:27:09,664 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 05:27:09,664 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:27:09,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a45838-e658-45e8-9176-f5f00f3b0eee/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-19 05:27:09,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a45838-e658-45e8-9176-f5f00f3b0eee/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:27:09,890 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-19 05:27:09,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:27:09,891 INFO L85 PathProgramCache]: Analyzing trace with hash 2130002548, now seen corresponding path program 1 times [2021-11-19 05:27:09,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:27:09,891 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897819326] [2021-11-19 05:27:09,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:27:09,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:27:09,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:27:10,056 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:27:10,056 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:27:10,057 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897819326] [2021-11-19 05:27:10,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897819326] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 05:27:10,058 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [93450838] [2021-11-19 05:27:10,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:27:10,058 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:27:10,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a45838-e658-45e8-9176-f5f00f3b0eee/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:27:10,062 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a45838-e658-45e8-9176-f5f00f3b0eee/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 05:27:10,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a45838-e658-45e8-9176-f5f00f3b0eee/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-19 05:27:10,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:27:10,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 05:27:10,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:27:10,293 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:27:10,293 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:27:10,484 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:27:10,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [93450838] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 05:27:10,485 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 05:27:10,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2021-11-19 05:27:10,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289049928] [2021-11-19 05:27:10,486 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 05:27:10,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-19 05:27:10,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:27:10,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-19 05:27:10,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2021-11-19 05:27:10,491 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 81 [2021-11-19 05:27:10,494 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 132 transitions, 530 flow. Second operand has 18 states, 18 states have (on average 73.27777777777777) internal successors, (1319), 18 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:27:10,494 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 05:27:10,494 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 81 [2021-11-19 05:27:10,494 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 05:27:10,851 INFO L129 PetriNetUnfolder]: 112/666 cut-off events. [2021-11-19 05:27:10,851 INFO L130 PetriNetUnfolder]: For 112/125 co-relation queries the response was YES. [2021-11-19 05:27:10,854 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1245 conditions, 666 events. 112/666 cut-off events. For 112/125 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 4143 event pairs, 30 based on Foata normal form. 4/658 useless extension candidates. Maximal degree in co-relation 1104. Up to 116 conditions per place. [2021-11-19 05:27:10,859 INFO L132 encePairwiseOnDemand]: 75/81 looper letters, 19 selfloop transitions, 21 changer transitions 0/156 dead transitions. [2021-11-19 05:27:10,859 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 156 transitions, 710 flow [2021-11-19 05:27:10,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-19 05:27:10,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-11-19 05:27:10,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1535 transitions. [2021-11-19 05:27:10,867 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9024103468547913 [2021-11-19 05:27:10,867 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1535 transitions. [2021-11-19 05:27:10,867 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1535 transitions. [2021-11-19 05:27:10,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 05:27:10,869 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1535 transitions. [2021-11-19 05:27:10,875 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 73.0952380952381) internal successors, (1535), 21 states have internal predecessors, (1535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:27:10,881 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 81.0) internal successors, (1782), 22 states have internal predecessors, (1782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:27:10,883 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 81.0) internal successors, (1782), 22 states have internal predecessors, (1782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:27:10,883 INFO L186 Difference]: Start difference. First operand has 103 places, 132 transitions, 530 flow. Second operand 21 states and 1535 transitions. [2021-11-19 05:27:10,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 156 transitions, 710 flow [2021-11-19 05:27:10,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 156 transitions, 710 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-11-19 05:27:10,895 INFO L242 Difference]: Finished difference. Result has 128 places, 145 transitions, 660 flow [2021-11-19 05:27:10,896 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=660, PETRI_PLACES=128, PETRI_TRANSITIONS=145} [2021-11-19 05:27:10,897 INFO L334 CegarLoopForPetriNet]: 82 programPoint places, 46 predicate places. [2021-11-19 05:27:10,897 INFO L470 AbstractCegarLoop]: Abstraction has has 128 places, 145 transitions, 660 flow [2021-11-19 05:27:10,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 73.27777777777777) internal successors, (1319), 18 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:27:10,898 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 05:27:10,898 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] [2021-11-19 05:27:10,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a45838-e658-45e8-9176-f5f00f3b0eee/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-19 05:27:11,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a45838-e658-45e8-9176-f5f00f3b0eee/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:27:11,114 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-19 05:27:11,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:27:11,115 INFO L85 PathProgramCache]: Analyzing trace with hash -805560012, now seen corresponding path program 2 times [2021-11-19 05:27:11,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:27:11,116 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129382657] [2021-11-19 05:27:11,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:27:11,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:27:11,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:27:11,320 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:27:11,320 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:27:11,320 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129382657] [2021-11-19 05:27:11,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129382657] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 05:27:11,320 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [825158622] [2021-11-19 05:27:11,321 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 05:27:11,321 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:27:11,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a45838-e658-45e8-9176-f5f00f3b0eee/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:27:11,322 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a45838-e658-45e8-9176-f5f00f3b0eee/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 05:27:11,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a45838-e658-45e8-9176-f5f00f3b0eee/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-19 05:27:11,396 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-19 05:27:11,396 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 05:27:11,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 05:27:11,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:27:11,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 05:27:11,554 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-19 05:27:11,555 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 [2021-11-19 05:27:11,601 INFO L354 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2021-11-19 05:27:11,601 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 [2021-11-19 05:27:11,669 INFO L354 Elim1Store]: treesize reduction 114, result has 19.7 percent of original size [2021-11-19 05:27:11,670 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 [2021-11-19 05:27:11,707 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-19 05:27:11,708 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-19 05:27:11,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [825158622] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:27:11,708 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 05:27:11,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2021-11-19 05:27:11,709 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730794131] [2021-11-19 05:27:11,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:27:11,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 05:27:11,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:27:11,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 05:27:11,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2021-11-19 05:27:11,712 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 81 [2021-11-19 05:27:11,712 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 145 transitions, 660 flow. Second operand has 6 states, 6 states have (on average 49.666666666666664) internal successors, (298), 6 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:27:11,713 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 05:27:11,713 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 81 [2021-11-19 05:27:11,713 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 05:27:12,256 INFO L129 PetriNetUnfolder]: 502/1484 cut-off events. [2021-11-19 05:27:12,256 INFO L130 PetriNetUnfolder]: For 625/625 co-relation queries the response was YES. [2021-11-19 05:27:12,263 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3767 conditions, 1484 events. 502/1484 cut-off events. For 625/625 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 9814 event pairs, 152 based on Foata normal form. 23/1506 useless extension candidates. Maximal degree in co-relation 3624. Up to 717 conditions per place. [2021-11-19 05:27:12,274 INFO L132 encePairwiseOnDemand]: 64/81 looper letters, 114 selfloop transitions, 53 changer transitions 3/236 dead transitions. [2021-11-19 05:27:12,274 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 236 transitions, 1376 flow [2021-11-19 05:27:12,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 05:27:12,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-19 05:27:12,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 392 transitions. [2021-11-19 05:27:12,277 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8065843621399177 [2021-11-19 05:27:12,277 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 392 transitions. [2021-11-19 05:27:12,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 392 transitions. [2021-11-19 05:27:12,278 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 05:27:12,278 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 392 transitions. [2021-11-19 05:27:12,279 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 65.33333333333333) internal successors, (392), 6 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:27:12,281 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 81.0) internal successors, (567), 7 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) [2021-11-19 05:27:12,282 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 81.0) internal successors, (567), 7 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) [2021-11-19 05:27:12,282 INFO L186 Difference]: Start difference. First operand has 128 places, 145 transitions, 660 flow. Second operand 6 states and 392 transitions. [2021-11-19 05:27:12,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 236 transitions, 1376 flow [2021-11-19 05:27:12,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 236 transitions, 1352 flow, removed 6 selfloop flow, removed 6 redundant places. [2021-11-19 05:27:12,295 INFO L242 Difference]: Finished difference. Result has 132 places, 196 transitions, 1142 flow [2021-11-19 05:27:12,295 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=636, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1142, PETRI_PLACES=132, PETRI_TRANSITIONS=196} [2021-11-19 05:27:12,296 INFO L334 CegarLoopForPetriNet]: 82 programPoint places, 50 predicate places. [2021-11-19 05:27:12,297 INFO L470 AbstractCegarLoop]: Abstraction has has 132 places, 196 transitions, 1142 flow [2021-11-19 05:27:12,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.666666666666664) internal successors, (298), 6 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:27:12,297 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 05:27:12,298 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] [2021-11-19 05:27:12,339 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a45838-e658-45e8-9176-f5f00f3b0eee/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-11-19 05:27:12,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a45838-e658-45e8-9176-f5f00f3b0eee/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:27:12,514 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-19 05:27:12,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:27:12,515 INFO L85 PathProgramCache]: Analyzing trace with hash 115396077, now seen corresponding path program 1 times [2021-11-19 05:27:12,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:27:12,515 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373484725] [2021-11-19 05:27:12,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:27:12,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:27:12,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:27:12,761 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:27:12,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:27:12,762 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373484725] [2021-11-19 05:27:12,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373484725] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 05:27:12,763 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109514864] [2021-11-19 05:27:12,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:27:12,763 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:27:12,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a45838-e658-45e8-9176-f5f00f3b0eee/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:27:12,765 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a45838-e658-45e8-9176-f5f00f3b0eee/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 05:27:12,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a45838-e658-45e8-9176-f5f00f3b0eee/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-19 05:27:12,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:27:12,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-19 05:27:12,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:27:13,095 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:27:13,095 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:27:13,372 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:27:13,373 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109514864] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 05:27:13,373 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 05:27:13,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2021-11-19 05:27:13,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542897220] [2021-11-19 05:27:13,376 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 05:27:13,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-19 05:27:13,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:27:13,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-19 05:27:13,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2021-11-19 05:27:13,381 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 81 [2021-11-19 05:27:13,385 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 196 transitions, 1142 flow. Second operand has 23 states, 23 states have (on average 73.43478260869566) internal successors, (1689), 23 states have internal predecessors, (1689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:27:13,385 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 05:27:13,386 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 81 [2021-11-19 05:27:13,386 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 05:27:13,921 INFO L129 PetriNetUnfolder]: 221/1017 cut-off events. [2021-11-19 05:27:13,921 INFO L130 PetriNetUnfolder]: For 925/956 co-relation queries the response was YES. [2021-11-19 05:27:13,926 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2603 conditions, 1017 events. 221/1017 cut-off events. For 925/956 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 6857 event pairs, 31 based on Foata normal form. 11/1017 useless extension candidates. Maximal degree in co-relation 2371. Up to 203 conditions per place. [2021-11-19 05:27:13,932 INFO L132 encePairwiseOnDemand]: 75/81 looper letters, 25 selfloop transitions, 30 changer transitions 0/222 dead transitions. [2021-11-19 05:27:13,932 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 222 transitions, 1392 flow [2021-11-19 05:27:13,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-19 05:27:13,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2021-11-19 05:27:13,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 2188 transitions. [2021-11-19 05:27:13,940 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9004115226337449 [2021-11-19 05:27:13,941 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 2188 transitions. [2021-11-19 05:27:13,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 2188 transitions. [2021-11-19 05:27:13,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 05:27:13,943 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 2188 transitions. [2021-11-19 05:27:13,950 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 72.93333333333334) internal successors, (2188), 30 states have internal predecessors, (2188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:27:13,957 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 81.0) internal successors, (2511), 31 states have internal predecessors, (2511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:27:13,959 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 81.0) internal successors, (2511), 31 states have internal predecessors, (2511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:27:13,959 INFO L186 Difference]: Start difference. First operand has 132 places, 196 transitions, 1142 flow. Second operand 30 states and 2188 transitions. [2021-11-19 05:27:13,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 222 transitions, 1392 flow [2021-11-19 05:27:13,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 222 transitions, 1384 flow, removed 4 selfloop flow, removed 0 redundant places. [2021-11-19 05:27:13,976 INFO L242 Difference]: Finished difference. Result has 165 places, 206 transitions, 1286 flow [2021-11-19 05:27:13,976 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=1134, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1286, PETRI_PLACES=165, PETRI_TRANSITIONS=206} [2021-11-19 05:27:13,977 INFO L334 CegarLoopForPetriNet]: 82 programPoint places, 83 predicate places. [2021-11-19 05:27:13,977 INFO L470 AbstractCegarLoop]: Abstraction has has 165 places, 206 transitions, 1286 flow [2021-11-19 05:27:13,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 73.43478260869566) internal successors, (1689), 23 states have internal predecessors, (1689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:27:13,979 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 05:27:13,979 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] [2021-11-19 05:27:14,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a45838-e658-45e8-9176-f5f00f3b0eee/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-19 05:27:14,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a45838-e658-45e8-9176-f5f00f3b0eee/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:27:14,194 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-19 05:27:14,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:27:14,195 INFO L85 PathProgramCache]: Analyzing trace with hash 2063446030, now seen corresponding path program 2 times [2021-11-19 05:27:14,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:27:14,195 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643499834] [2021-11-19 05:27:14,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:27:14,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:27:14,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:27:14,340 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-19 05:27:14,340 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:27:14,340 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643499834] [2021-11-19 05:27:14,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643499834] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:27:14,341 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:27:14,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-19 05:27:14,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211039689] [2021-11-19 05:27:14,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:27:14,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 05:27:14,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:27:14,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 05:27:14,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-19 05:27:14,346 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 81 [2021-11-19 05:27:14,346 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 206 transitions, 1286 flow. Second operand has 6 states, 6 states have (on average 48.833333333333336) internal successors, (293), 6 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:27:14,347 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 05:27:14,347 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 81 [2021-11-19 05:27:14,347 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 05:27:15,056 INFO L129 PetriNetUnfolder]: 612/1803 cut-off events. [2021-11-19 05:27:15,056 INFO L130 PetriNetUnfolder]: For 2114/2117 co-relation queries the response was YES. [2021-11-19 05:27:15,067 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5715 conditions, 1803 events. 612/1803 cut-off events. For 2114/2117 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 12532 event pairs, 163 based on Foata normal form. 28/1827 useless extension candidates. Maximal degree in co-relation 5489. Up to 909 conditions per place. [2021-11-19 05:27:15,079 INFO L132 encePairwiseOnDemand]: 64/81 looper letters, 134 selfloop transitions, 58 changer transitions 36/306 dead transitions. [2021-11-19 05:27:15,080 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 306 transitions, 2298 flow [2021-11-19 05:27:15,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 05:27:15,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-19 05:27:15,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 387 transitions. [2021-11-19 05:27:15,082 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7962962962962963 [2021-11-19 05:27:15,083 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 387 transitions. [2021-11-19 05:27:15,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 387 transitions. [2021-11-19 05:27:15,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 05:27:15,083 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 387 transitions. [2021-11-19 05:27:15,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 64.5) internal successors, (387), 6 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:27:15,087 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 81.0) internal successors, (567), 7 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) [2021-11-19 05:27:15,087 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 81.0) internal successors, (567), 7 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) [2021-11-19 05:27:15,088 INFO L186 Difference]: Start difference. First operand has 165 places, 206 transitions, 1286 flow. Second operand 6 states and 387 transitions. [2021-11-19 05:27:15,088 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 306 transitions, 2298 flow [2021-11-19 05:27:15,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 306 transitions, 2252 flow, removed 5 selfloop flow, removed 18 redundant places. [2021-11-19 05:27:15,116 INFO L242 Difference]: Finished difference. Result has 156 places, 233 transitions, 1648 flow [2021-11-19 05:27:15,117 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=1240, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1648, PETRI_PLACES=156, PETRI_TRANSITIONS=233} [2021-11-19 05:27:15,118 INFO L334 CegarLoopForPetriNet]: 82 programPoint places, 74 predicate places. [2021-11-19 05:27:15,118 INFO L470 AbstractCegarLoop]: Abstraction has has 156 places, 233 transitions, 1648 flow [2021-11-19 05:27:15,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 48.833333333333336) internal successors, (293), 6 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:27:15,119 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 05:27:15,119 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] [2021-11-19 05:27:15,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-19 05:27:15,119 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-19 05:27:15,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:27:15,120 INFO L85 PathProgramCache]: Analyzing trace with hash 383944207, now seen corresponding path program 1 times [2021-11-19 05:27:15,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:27:15,121 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043188750] [2021-11-19 05:27:15,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:27:15,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:27:15,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:27:15,166 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 05:27:15,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:27:15,225 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 05:27:15,226 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 05:27:15,227 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2021-11-19 05:27:15,229 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2021-11-19 05:27:15,229 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (4 of 7 remaining) [2021-11-19 05:27:15,230 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2021-11-19 05:27:15,230 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2021-11-19 05:27:15,230 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2021-11-19 05:27:15,231 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2021-11-19 05:27:15,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-19 05:27:15,235 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1] [2021-11-19 05:27:15,241 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-19 05:27:15,241 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 05:27:15,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:27:15 BasicIcfg [2021-11-19 05:27:15,302 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 05:27:15,303 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 05:27:15,303 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 05:27:15,303 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 05:27:15,304 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:27:06" (3/4) ... [2021-11-19 05:27:15,307 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-19 05:27:15,307 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 05:27:15,308 INFO L158 Benchmark]: Toolchain (without parser) took 10097.53ms. Allocated memory was 100.7MB in the beginning and 163.6MB in the end (delta: 62.9MB). Free memory was 65.5MB in the beginning and 44.4MB in the end (delta: 21.2MB). Peak memory consumption was 83.4MB. Max. memory is 16.1GB. [2021-11-19 05:27:15,308 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 100.7MB. Free memory is still 55.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 05:27:15,309 INFO L158 Benchmark]: CACSL2BoogieTranslator took 601.10ms. Allocated memory is still 100.7MB. Free memory was 65.3MB in the beginning and 64.8MB in the end (delta: 540.1kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-19 05:27:15,309 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.35ms. Allocated memory is still 100.7MB. Free memory was 64.8MB in the beginning and 62.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 05:27:15,310 INFO L158 Benchmark]: Boogie Preprocessor took 45.16ms. Allocated memory is still 100.7MB. Free memory was 62.7MB in the beginning and 61.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 05:27:15,310 INFO L158 Benchmark]: RCFGBuilder took 556.64ms. Allocated memory is still 100.7MB. Free memory was 61.2MB in the beginning and 48.3MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-19 05:27:15,311 INFO L158 Benchmark]: TraceAbstraction took 8837.40ms. Allocated memory was 100.7MB in the beginning and 163.6MB in the end (delta: 62.9MB). Free memory was 48.0MB in the beginning and 45.4MB in the end (delta: 2.6MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. [2021-11-19 05:27:15,311 INFO L158 Benchmark]: Witness Printer took 4.22ms. Allocated memory is still 163.6MB. Free memory was 45.4MB in the beginning and 44.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 05:27:15,314 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 100.7MB. Free memory is still 55.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 601.10ms. Allocated memory is still 100.7MB. Free memory was 65.3MB in the beginning and 64.8MB in the end (delta: 540.1kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.35ms. Allocated memory is still 100.7MB. Free memory was 64.8MB in the beginning and 62.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.16ms. Allocated memory is still 100.7MB. Free memory was 62.7MB in the beginning and 61.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 556.64ms. Allocated memory is still 100.7MB. Free memory was 61.2MB in the beginning and 48.3MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 8837.40ms. Allocated memory was 100.7MB in the beginning and 163.6MB in the end (delta: 62.9MB). Free memory was 48.0MB in the beginning and 45.4MB in the end (delta: 2.6MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. * Witness Printer took 4.22ms. Allocated memory is still 163.6MB. Free memory was 45.4MB in the beginning and 44.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 693]: Data race detected Data race detected The following path leads to a data race: [L679] 0 int data[10]; VAL [data={3:0}] [L680] 0 pthread_mutex_t m[10]; VAL [data={3:0}, m={5:0}] [L688] 0 int i = 0; VAL [data={3:0}, i=0, m={5:0}] [L688] COND TRUE 0 i < 10 VAL [data={3:0}, i=0, m={5:0}] [L688] 0 i++ VAL [data={3:0}, i=1, m={5:0}] [L688] COND TRUE 0 i < 10 VAL [data={3:0}, i=1, m={5:0}] [L688] 0 i++ VAL [data={3:0}, i=2, m={5:0}] [L688] COND TRUE 0 i < 10 VAL [data={3:0}, i=2, m={5:0}] [L688] 0 i++ VAL [data={3:0}, i=3, m={5:0}] [L688] COND TRUE 0 i < 10 VAL [data={3:0}, i=3, m={5:0}] [L688] 0 i++ VAL [data={3:0}, i=4, m={5:0}] [L688] COND TRUE 0 i < 10 VAL [data={3:0}, i=4, m={5:0}] [L688] 0 i++ VAL [data={3:0}, i=5, m={5:0}] [L688] COND TRUE 0 i < 10 VAL [data={3:0}, i=5, m={5:0}] [L688] 0 i++ VAL [data={3:0}, i=6, m={5:0}] [L688] COND TRUE 0 i < 10 VAL [data={3:0}, i=6, m={5:0}] [L688] 0 i++ VAL [data={3:0}, i=7, m={5:0}] [L688] COND TRUE 0 i < 10 VAL [data={3:0}, i=7, m={5:0}] [L688] 0 i++ VAL [data={3:0}, i=8, m={5:0}] [L688] COND TRUE 0 i < 10 VAL [data={3:0}, i=8, m={5:0}] [L688] 0 i++ VAL [data={3:0}, i=9, m={5:0}] [L688] COND TRUE 0 i < 10 VAL [data={3:0}, i=9, m={5:0}] [L688] 0 i++ VAL [data={3:0}, i=10, m={5:0}] [L688] COND FALSE 0 !(i < 10) VAL [data={3:0}, i=10, m={5:0}] [L690] 0 pthread_t id; VAL [data={3:0}, i=10, id={2:0}, m={5:0}] [L691] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, data={3:0}, i=10, id={2:0}, m={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L693] EXPR 0 data[4] VAL [arg={0:0}, data={3:0}, data[4]=0, i=10, id={2:0}, m={5:0}] [L683] EXPR 1 data[4] VAL [arg={0:0}, arg={0:0}, data={3:0}, data[4]=0, m={5:0}] [L683] 1 data[4]++ VAL [arg={0:0}, arg={0:0}, data={3:0}, data[4]=0, data[4]++=0, m={5:0}] [L693] 0 data[4]++ VAL [arg={0:0}, arg={0:0}, data={3:0}, data[4]=0, data[4]=0, data[4]++=0, i=10, id={2:0}, m={5:0}] [L683] 1 data[4]++ VAL [arg={0:0}, arg={0:0}, data={3:0}, data[4]=0, data[4]++=0, data[4]++=241, m={5:0}] [L693] 0 data[4]++ VAL [arg={0:0}, arg={0:0}, data={3:0}, data[4]=0, data[4]=0, data[4]++=241, data[4]++=0, i=10, id={2:0}, m={5:0}] Now there is a data race (on the heap) between C: data[4]++ [683] and C: data[4]++ [693] - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 683]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 683]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 107 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 8.6s, OverallIterations: 8, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 179 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 179 mSDsluCounter, 127 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 56 mSDsCounter, 157 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 804 IncrementalHoareTripleChecker+Invalid, 961 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 157 mSolverCounterUnsat, 89 mSDtfsCounter, 804 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 517 GetRequests, 402 SyntacticMatches, 1 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 634 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1648occurred in iteration=7, InterpolantAutomatonStates: 81, 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, 0.4s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 747 NumberOfCodeBlocks, 697 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 796 ConstructedInterpolants, 0 QuantifiedInterpolants, 1547 SizeOfPredicates, 22 NumberOfNonLiveVariables, 488 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 15 InterpolantComputations, 4 PerfectInterpolantSequences, 365/888 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-19 05:27:15,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75a45838-e658-45e8-9176-f5f00f3b0eee/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE